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Sample records for tercer molar inferior

  1. VALIDACIÓN DE LA RADIOGRAFÍA PANORÁMICA EN LA DETERMINACIÓN DE LA POSICIÓN DEL TERCER MOLAR INFERIOR RESPECTO AL CONDUCTO DENTARIO INFERIOR EN CRÁNEOS DE ADULTOS. AREQUIPA.2013

    OpenAIRE

    OCOLA TICONA, BERLIE CESAR

    2014-01-01

    RADIOGRAFÍA PANORÁMICA HISTORIA Y EVOLUCIÓN FUNDAMENTOS DE LA RADIOGRAFÍA PANORÁMICA TERCEROS MOLARES CRITERIOS GENERALES CASUÍSTICA ETIOLOGÍA ETIOPATOGENIA CONDICIONES ANATÓMICAS DIAGNOSTICO CLASIFICACIÓN DE LAS IMPACTACIONES DEL TERCER MOLAR RELACIÓN DEL TERCER MOLAR INFERIOR CON EL CONDUCTO DENTARIO INFERIOR FORMAS DE PREVENCIÓN

  2. Valoración de la presencia y estado de erupción del tercer molar inferior en las fracturas del ángulo mandibular

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    José Manuel Díaz Fernández

    1998-12-01

    Full Text Available Se realizó un estudio prospectivo de 176 pacientes con fractura de mandíbula en el Servicio de Cirugía Maxilofacial del Hospital Provincial Docente «Saturnino Lora» de Santiago de Cuba, durante los años 1990-1995, con la finalidad de analizar la posible interrelación entre las fracturas del ángulo y la presencia y estado de erupción del tercer molar inferior. Se pudo comprobar que la incidencia de dichas fracturas era de gran significación cuando los terceros molares inferiores no erupcionados se hallaban presentes, que había una predisposición más marcada a la fractura del ángulo cuando ésta se producía bilateralmente, así como también que el tercer molar inferior no erupcionado debilitaba el ángulo de la mandíbula, tanto cualitativa como cuantitativamente; o sea, se demostró una relación directa entre la cantidad de espacio óseo ocupado por el tercer molar inferior no erupcionado y la debilidad del área del hueso.A prospective study was performed in 176 patients presenting mandibular factures, treated in Maxillofacial Surgery Service of «Saturnino Lora» Teaching Provincial Hospital, Santiago de Cuba (1990-1995, to analyse possible interrelation between angle fractures and presence and state of eruption of inferior third molars. We check out that incidence of such fractures was significant when non-erupted inferior third molars were present, a remarkable predisposition against angle fracture when this one was bilateral, as well as that non-erupted inferior third molars weakened mandibular angle, both qualitatively as quantitatively; that is, a direct relationship between amount of bone space, occupied by non erupted inferior third molar and weakness of bone area was proved.

  3. Eficacia del uso del plasma rico en factores de crecimiento en defectos periodontales distales de segundos molares inferiores, posterior a la extracción de un tercer molar mandibular

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    Sánchez-Gutiérrez, Carlos; Cepeda-Bravo, Juan Antonio; Fierro-Serna, Víctor Mario; García-García, Carlos Eduardo; Martínez-Rider, Ricardo; Noyola-Frías, Miguel Ángel

    2016-01-01

    Objetivo: El propósito de este estudio fue evaluar la eficacia de la aplicación de plasma rico en factores de crecimiento (PRFC), dentro de un defecto periodontal distal, a los segundos molares inferiores después de la extracción de un tercer molar mandibular. Material y métodos: Se realizó un ensayo clínico controlado, doble ciego, aleatorizado en 20 pacientes sanos, con defectos óseos bilaterales posterior a la extracción de un tercer molar retenido. Los pacientes fueron dividos en grupo...

  4. Una rara complicación en la extracción del tercer molar inferior incluido: Caso clínico A rare complication during the extraction of the included inferior third molar: Case report

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    S. Aboul-Hosn Centenero; R. Sieira Gil; A. Monner Diéguez

    2009-01-01

    Presentamos una rara complicación ocurrida tras el intento de extracción del tercer molar incluido en una consulta odontológica bajo anestesia local. El paciente requirió ingreso en el servicio de urgencias para la extracción, de forma urgente, de la pieza a través de un abordaje cervical bajo anestesia general e intubación nasaotraqueal por desplazamiento de la pieza hacia la fosa submandibular durante el intento de extracción ambulatoria. El paciente presentó signos evidentes de inflamación...

  5. Una rara complicación en la extracción del tercer molar inferior incluido: Caso clínico A rare complication during the extraction of the included inferior third molar: Case report

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    S. Aboul-Hosn Centenero

    2009-10-01

    Full Text Available Presentamos una rara complicación ocurrida tras el intento de extracción del tercer molar incluido en una consulta odontológica bajo anestesia local. El paciente requirió ingreso en el servicio de urgencias para la extracción, de forma urgente, de la pieza a través de un abordaje cervical bajo anestesia general e intubación nasaotraqueal por desplazamiento de la pieza hacia la fosa submandibular durante el intento de extracción ambulatoria. El paciente presentó signos evidentes de inflamación en la región submandibular con desplazamiento de la vía aérea hacia el lado opuesto. Las complicaciones derivadas de la cirugía del tercer molar son, en algunos casos, mortales y pueden aparecer tras un acto quirúrgico aparentemente de bajo riesgo. Estas complicaciones han sido ampliamente descritas en la literatura. Aún así consideramos importante el presentar complicaciones poco frecuentes en la cirugía del tercer molar ya que esto nos permitirá conocerlas y ofrecer la mejor solución en cada caso.We present a rare complication that appeared after an attempt to extract the included third molar with local anaesthesia at the odontologist office. The patient was admitted to the emergency room to have the tooth removed cervically under general anaesthesia and nasotracheal tubation because of its movement towards the submandibular fossa during the ambulatory extraction attempt. The patient showed evident signs of swelling in submandibular region and the airway was displaced towards the opposite side. The resulting complications from the third molar surgery are, in some cases, mortal and can occur after an apparently low risk surgery. These complications have been thoroughly described in literature. Still, we consider it important to describe infrequent complications of third molar surgery because it will allow us to know more about them and offer the best solution in every case.

  6. Regeneración tisular guiada mediante membranas reabsorbibles de colágeno tras la extracción quirúrgica del tercer molar inferior incluido. Ensayo clínico randomizado a doble ciego.

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    Cortell Ballester, Isidoro

    2015-01-01

    [spa] OBJETIVOS:
El uso de membranas de colágeno reabsorbibles (MBM) en el tratamiento de defectos intraóseos y bolsas periodontales profundas en la cara distal del segundo molar inferior (2MI) después de la extracción quirúrgica de un tercer molar inferior impactado (3MI) ha mostrado resultados contradictorios. Este estudio evaluó los efectos de la colocación de MBM en la curación de un defecto óseo distal al 2MI después de la extracción quirúrgica de los 3MI incluidos en posición hor...

  7. Eficacia del uso del plasma rico en factores de crecimiento en defectos periodontales distales de segundos molares inferiores, posterior a la extracción de un tercer molar mandibular

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    Carlos Sánchez-Gutiérrez

    2017-07-01

    Conclusiones: No se encontró diferencia significativa con el uso de PRFC en cuanto a ganancia en el nivel clínico de inserción periodontal en el área distal de segundos molares después de la extracción de terceros molares inferiores retenidos.

  8. Fusión de un tercer molar mandibular con un cuarto molar supernumerario Fusion of mandibular third molar with supernumerary fourth molar

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    C. López Carriches; I. Leco Berrocal; R. Baca Pérez-Bryan

    2008-01-01

    La fusión dental es la unión de dos gérmenes dentales normalmente separados, mientras que la geminación se define como el intento de división de un único germen dental. La fusión y geminación de molares es poco frecuente en la dentición permanente. Describimos un caso clínico de un tercer molar inferior derecho fusionado a un cuarto molar supernumerario en un paciente varón de 36 años que ha presentado repetidos episodios de pericoronaritis. Tras el estudio radiológico se realiza la exodoncia...

  9. Fusión de un tercer molar mandibular con un cuarto molar supernumerario Fusion of mandibular third molar with supernumerary fourth molar

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    C. López Carriches

    2008-10-01

    Full Text Available La fusión dental es la unión de dos gérmenes dentales normalmente separados, mientras que la geminación se define como el intento de división de un único germen dental. La fusión y geminación de molares es poco frecuente en la dentición permanente. Describimos un caso clínico de un tercer molar inferior derecho fusionado a un cuarto molar supernumerario en un paciente varón de 36 años que ha presentado repetidos episodios de pericoronaritis. Tras el estudio radiológico se realiza la exodoncia del cordal semiincluido bajo anestesia local. Llevamos a cabo una revisión bibliográfica al respecto.Dental fusion is the union of two tooth buds that normally are separated, while gemination is defined as an attempt by a single tooth bud to divide. The fusion and gemination of molars is uncommon in permanent teeth. We report a clinical case of a right lower third molar fused to a supernumerary fourth molar in a 36-year-old male patient with repeated episodes of inflammation. After the radiologic study, the semi-impacted third molar was extracted under local anesthesia. The literature was reviewed.

  10. Exodoncia del tercer molar: Factores que determinan complejidad

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    Ivan Manotas Arevalo

    2014-06-01

    Full Text Available ResumenUno de los procedimientos más frecuentes en el campo de la Cirugía Oral es la exodoncia, o extracción dental. La prevención y la promoción de hábitos saludables dentro de los que se cuenta la práctica del cepillado dental, uso de dentífricos, hilo dental y enjuagatorios bucales, además de visitas periódicas de control a especialistas y odontólogos generales e higienistas bucales ha conllevado a una reducción en la perdida de estructuras dentarias por causa de la caries y las periodontopatìas. Sin embargo se mantiene alto el número de exodoncias indicadas por falta de espacio en la estructura de los maxilares para la erupción dental, así como alteraciones en la posición y angulacion de los órganos dentales sobre su eje que impide una adecuada ubicación logrando que se indique su extracción. Dentro de la serie dental los órganos dentarios más frecuentemente afectados por este tipo de alteraciones son los terceros molares. También se mencionan que son esos mismos dientes los que acusan mayor grado de complejidad para realizar el procedimiento de exodoncia, y los que causan mayor grado de morbilidad posquirúrgica en el paciente, con un número mayor de complicaciones y su severidad, descritas en la literatura. (Duazary 2008; 141-147. Este artículo pretende analizar los factores que determinan complejidad en la exodoncia del tercer molar a partir de una revisión bibliografía y comparación de ésta.AbstractOne of the most frequent procedure used in the field of Oral Surgery is extracted, or tooth extraction. The prevention and promoting healthy habits in mind that the practice of brushing teeth, use of toothpastes, mouthwashes and dental floss mouth, in addition to regular monitoring visits to specialists and general dentists and oral hygiene has led to a reduction in the loss of structures caused by tooth decay and periodontal pathology. However remains high number of extractions indicated by lack of space in the

  11. Relación entre el perfil psicológico del paciente y la calidad de vida tras la extracción quirúrgica del tercer molar inferior

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    Fuster Torres, Mª Ángeles

    2016-01-01

    La evolución postoperatoria tras la extracción de los terceros molares depende de una serie de factores propios de cada paciente y de factores propios de la intervención quirúrgica. Pero algunos factores, principalmente psicológicos y psicosociales, pueden ser importantes cuando analizamos la sintomatología del paciente, el riesgo de complicaciones crónicas y la resolución de los síntomas. Se conoce muy poco sobre qué potencial predictivo tienen las alteraciones psicológicas preoperatorias so...

  12. Cicatrización periodontal del segundo molar mandibular tras la exodoncia del tercer molar mandibular incluido

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    Inocêncio Teixeira de Faria, Ana Cristina

    2015-01-01

    La extracción quirúrgica del tercer molar (M3) puede provocar complicaciones periodontales en la cara distal del segundo molar (M2) adyacente. Se realizó un estudio clínico prospectivo a 12 meses en 25 pacientes jóvenes sanos (edad media 21 años) sometidos a 40 extracciones quirúrgicas de M3 mandibulares incluidos con elevado riesgo periodontal, con objeto de estudiar la cicatrización periodontal espontánea en la cara distal del M2. Prequirúrgicamente y a 3, 6 y 12 meses tras l...

  13. Variables preoperatorias e intraoperatorias asociadas al aumento del tiempo quirúrgico en la exodoncia de terceros molares inferiores Pre-surgical and surgical factors related to increase of surgical time in lower third molar remove

    OpenAIRE

    Olate, S; J.P. Alister; R Alveal; Soto, M.; H.D. de Miranda Chaves Netto; Thomas, D.

    2012-01-01

    Introducción: La exodoncia de tercer molar es un procedimiento frecuente en odontología, lo que exige conocer los factores que pueden anticipar el tiempo quirúrgico y sus características. El objetivo de esta investigación es conocer los factores asociados al aumento del tiempo quirúrgico (ATQ) en la exodoncia de terceros molares inferiores (3M). Material y método: 145 sujetos de entre 15 y 40 años fueron seleccionados desde tres centros quirúrgicos de Temuco (Chile), en los que fueron realiza...

  14. Efficiency of Intraligamentary Anesthesia of Inferior Molars for Endodontic Treatment

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    Peycheva K.

    2014-12-01

    Full Text Available The periodontal ligament injection appears to be the most consistently reliable in achieving clinically adequate pulpal anaesthesia. Materials and Methods: 130 inferior molar teeth; technique: The tooth was first cleaned with chlorhexidine 0.2% solution. The penetration of the ligament is performed with special intraligamentary needle (30 G - 9, 17,21 mm “sliding” along the side of the tooth, 300º angle between the needle and the tooth, having taken the care of determining support points which will prevent the needle from twisting. The penetration must be deep enough to obtain the seal required for the injection, injection for each root in particular points; volume of solution per root is 0.2-0.4 ml. Results: In 125 cases the technique was absolutely efficient. In only 5 cases with pulpitis chronica ulcerosa there was need for additional intrapulpal anesthesia. Conclusions: The method could be used as a primary anesthetic method for endodontic treatment.

  15. Optimización de la antibioterapia en cirugía del tercer molar incluido

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    Iglesias Martin, Fernando

    2015-01-01

    OBJETIVOS. El objetivo de este trabajo fue comparar el uso de amoxicilina 1.000 mg frente a amoxicilina/clavulánico 875/125 mg tras la extracción de terceros molares mandibulares incluidos para la prevención de complicaciones infecciosas, estudiar qué pauta antibiótica de las propuestas es más efectiva en la prevención de las complicaciones inflamatorias postoperatorias (entendiendo como complicaciones inflamatorias el dolor, la inflamación, el trismo y la fiebre) y analizar...

  16. Tercer molar ectópico a nivel de región infraorbitaria-seno maxilar Ectopic third molar of the maxillary sinus-infraorbital region

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    C. Moreno García

    2007-06-01

    Full Text Available Introducción. Los cordales ectópicos son aquellos incluidos en posiciones inusuales o desplazados a distancia de su normal localización anatómica. La erupción ectópica de un diente dentro de la cavidad oral es común pero en otros lugares es raro. La erupción ectópica puede ir asociada con alteraciones en el desarrollo, procesos patológicos o yatrogenia. Caso Clínico. Mujer de 56 años de edad con tercer molar superior derecho ectópico a nivel de región infraorbitaria-seno maxilar. Presentaba dolor e inflamación hemifacial derecha de larga evolución y resistente a tratamiento médico. Se realizó exéresis quirúrgica de dicho cordal mediante abordaje de Caldwell-Luc. Discusión. En muchos casos la etiología de un cordal ectópico no puede ser identificada. La mayor parte de las veces son asintomáticos y diagnosticados mediante estudios radiológicos. Conclusión. La indicación de la exodoncia en el caso de un diente ectópico en general viene determinada por la presencia de sintomatología o en prevención de futuras complicaciones.Introduction. Ectopic third molar teeth are those that are impacted in unusual positions, or that have been displaced and are at a distance from their normal anatomic location. Ectopic eruption of a tooth within the oral cavity is common, but rare in other sites. Ectopic eruption can be associated with developmental disturbances, pathologic processes or iatrogenic activity. Case Report. Female, fifty-six years old, with an upper right ectopic third molar located in the maxillary sinus-infraorbital region. She presented with pain and inflammation of the right side of her face that she had been experiencing for along time and which had been resistant to treatment. Surgical excision was carried out of the third molar tooth using the Caldwell-Luc approach. Discussion. In many cases the etiology of ectopic third molars cannot be identified. Generally they are asymptomatic and diagnosed by radiology

  17. Dispositivo de seguridad para controlar mejor el tercer molar impactado durante exodoncia: Una nueva técnica Security device for a better control of impacted third molars during exodontia: A new technique

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    F. Hernández Altemir

    2005-04-01

    Full Text Available El desplazamiento accidental del tercer molar impactado es una complicación que ocurre de vez en cuando durante la exodoncia. La recuperación de estos dientes accidentalmente desplazados puede ser compleja debido a la mala visibilidad y el espacio limitado. Describimos una técnica fácil basada en un sistema de anclaje para controlar mejor los terceros molares impactados durante la exodoncia.Accidental displacement of impacted third molars is a complication that occasionally occurs during exodontia. The retrieval of these accidentally displaced third molars may be complex due to poor visibility and limited space. We describe an easy technique for a better control of impacted third molars during exodontia based on an anchoring system.

  18. Penetracion del hipoclorito de sodio al comparar cuatro sistemas rotatorios de preparacion en conductos mesovestibulares de molares inferiores

    National Research Council Canada - National Science Library

    Covo Morales, Eduardo Enrique; Simancas Pallares, Miguel Angel; Ruiz Llorente, Angela Maria

    2015-01-01

    Objetivo: Comparar la diferencia de longitud de penetracion del hipoclorito de sodio al emplear cuatro sistemas rotatorios de preparacion en conductos mesovestibulares de molares inferiores. Metodos...

  19. New quantitative classification of the anatomical relationship between impacted third molars and the inferior alveolar nerve.

    Science.gov (United States)

    Wang, Wei-Quan; Chen, Michael Y C; Huang, Heng-Li; Fuh, Lih-Jyh; Tsai, Ming-Tzu; Hsu, Jui-Ting

    2015-12-07

    Before extracting impacted lower third molars, dentists must first identify the spatial relationship between the inferior alveolar nerve (IAN) and an impacted lower third molar to prevent nerve injury from the extraction. Nevertheless, the current method for describing the spatial relationship between the IAN and an impacted lower third molar is deficient. Therefore, the objectives of this study were to: (1) evaluate the relative position between impacted lower third molars and the IAN; and (2) investigate the relative position between impacted lower third molars and the IAN by using a cylindrical coordinate system. From the radiology department's database, we selected computed tomography images of 137 lower third molars (from 75 patients) requiring removal and applied a Cartesian coordinate system by using Mimics, a medical imaging software application, to measure the distribution between impacted mandibular third molars and the IAN. In addition, the orientation of the lower third molar to the IAN was also measured, but by using a cylindrical coordinate system with the IAN as the origin. According to the Cartesian coordinate system, most of the IAN runs through the inferior side of the third molar (78.6 %), followed by the lingual side (11.8 %), and the buccal side (8.9 %); only 0.7 % is positioned between the roots. Unlike the Cartesian coordinate system, the cylindrical coordinate system clearly identified the relative position, r and θ, between the IAN and lower third molar. Using the cylindrical coordinate system to present the relationship between the IAN and lower third molar as (r, θ) might provide clinical practitioners with a more explicit and objective description of the relative position of both sites. However, comprehensive research and cautious application of this system remain necessary.

  20. The anatomical relationship between the roots of mandibular second molars and the inferior alveolar nerve.

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    Chong, B S; Quinn, A; Pawar, R R; Makdissi, J; Sidhu, S K

    2015-06-01

    To evaluate the anatomical relationship between the roots of mandibular second molars and the inferior alveolar nerve (IAN) in relation to the risk of potential nerve injury during root canal treatment. Cone-beam computed tomography (CBCT) images from the patient record database at a dental hospital were selected. The anonymized CBCT images were reconstructed and examined in three planes (coronal, axial and sagittal) using 3D viewing software. The relationship between each root apex of mandibular second molars and the IAN was evaluated by measuring the horizontal and vertical distances from coronal CBCT sections, and the actual distance was then calculated mathematically using Pythagoras' theorem. In 55% of the 272 mandibular second molar roots evaluated, from a total of 134 scans, the distance between the anatomical root apex and the IAN was ≤3 mm. In over 50% of the cases evaluated, there was an intimate relationship between the roots of mandibular second molars and the inferior alveolar nerve (IAN). Therefore, root canal treatment of mandibular second molars may pose a more significant potential risk of IAN injury; necessary precautions should be exercised, and the prudent use of CBCT should be considered if an intimate relationship is suspected. © 2014 International Endodontic Journal. Published by John Wiley & Sons Ltd.

  1. Avaliação ortopantomográfica das angulações mesiodistais de caninos, pré-molares e molares inferiores com e sem a presença dos terceiros molares Panoramic evaluation of the mesiodistal angulations of canine teeth, premolar and inferior molars with and without the presence of the third molars

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    Rodrigo Castellazzi Sella

    2009-12-01

    Full Text Available OBJETIVOS: comparar os valores médios normais das angulações mesiodistais dentárias, propostos por Ursi, em 1989, com as angulações mesiodistais de caninos, pré-molares e molares inferiores em indivíduos com e sem a presença dos terceiros molares inferiores e idades entre 18 e 25 anos. Além disso, foram comparados os valores das angulações mesiodistais desses dentes nessas duas situações. MÉTODOS: foram utilizadas 40 radiografias ortopantomográficas de indivíduos, de ambos os gêneros, que não receberam tratamento ortodôntico, divididos em dois grupos: Grupo I, constituído por 20 radiografias que não apresentavam os terceiros molares inferiores; e Grupo II, formado por 20 radiografias com os terceiros molares inferiores presentes. RESULTADOS E CONCLUSÕES: a análise dos resultados e a análise estatística permitiram concluir que ambos os grupos exibiram pré-molares e molares inferiores mais angulados em sentido mesial, quando comparados à oclusão normal. Por outro lado, a angulação mesiodistal de caninos inferiores mostrou-se semelhante àquela apresentada em casos de oclusão normal. Os dois grupos, quando comparados entre si, exibiram semelhantes valores angulares dos caninos, pré-molares e molares inferiores, de modo que a presença dos terceiros molares não exerceu influência sobre essas angulações mesiodistais dentárias.AIM: To compare the normal mean values of the mesiodistal axial angulation, proposed by Ursi in 1989, with the mesiodistal axial angulation of canine teeth, premolar and inferior molars in individuals with and without the presence of the third inferior molars and ages between 18 and 25 years. Besides, the values of the mesiodistal axial angulation of these teeth were compared in these two situations. METHODS: Forty panoramic x-rays were used from individuals of both genders that didn't receive orthodontic treatment, divided in two groups: Group I, constituted by 20 x-rays that didn't present

  2. Glucocorticoides como profiláctico antinflamatorio en cirugía de terceras molares inferiores.

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    Manrique-Guzmán, Jorge; Facultad de Odontología de la Universidad Nacional Federico Villarreal. Lima.; Chávez-Reátegui, Beatriz; Facultad de Estomatología. Universidad Peruana Cayetano Heredia. Lima.; Manrique-Chávez, Jorge; Facultad de Estomatología. Universidad Peruana Cayetano Heredia. Lima.

    2014-01-01

    Objetivo: Comparar la presencia de inflamación aguda severa en pacientes con y sin medicación antes del procedimiento de exodoncia de terceros molares inferiores, atendidos en la Clínica Odontológica de la Universidad Nacional Federico Villarreal. Material y métodos: Se tomó como muestra 116 pacientes de ambos sexos, entre 21 y 45 años de edad los cuales fueron divididos en dos grupos aleatoriamente, solo uno recibió medicación con Glucocorticoides antes del tratamiento. Resultados: Se encont...

  3. Alteraciones nerviosas tras la extracción quirúrgica de terceros molares inferiores. Estudio prospectivo

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    Valmaseda Castellón, Eduardo

    1999-01-01

    1)OBJETIVOS:Determinar la incidencia de lesiones del nervio dentario inferior y del nervio lingual tras la extracción quirúrgica de terceros molares inferiores e identificar los factores de riesgo de dichas lesiones. Establecer un modelo de regresión logística para predecir la probabilidad de lesión de los nervios dentario inferior y lingual. Describir la evolución de las alteraciones sensoriales.2) MATERIAL Y MÉTODOS:Se recogieron datos para un estudio prospectivo preliminar sobre 449 extrac...

  4. CONVENIENCIA DE LA CIRUGÍA PROFILÁCTICA DEL TERCER MOLAR RETENIDO: UN ANÁLISIS DE DECISIONES Prophylactic removal of the third molars: a clinical making decisions

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    Adriana Ramírez

    2008-06-01

    Full Text Available Antecedentes . La proporción de cirugías de terceros molares que se realizan de manera profiláctica es difícil de estimar de manera precisa y depende en muchos casos de la definición que se dé para éste término. Objetivo . Determinar entre pacientes y cirujanos cuál es la alternativa más útil para plantear la cirugía profiláctica de los terceros molares retenidos asintomáticos. Material y métodos. Un análisis de decisiones clínicas (modelo de árbol de decisiones se utilizó para definir el tratamiento del tercer molar retenido asintomático. Las probabilidades para los desenlaces fueron obtenidos de la literatura. Las utilidades o preferencia fueron asignadas independientemente por pacientes y cirujanos. Resultados. La alternativa más conveniente para los pacientes fue la No extracción , mientras que para los cirujanos, la Si extracción . La decisión de los cirujanos resultó inestable al efectuar el análisis de sensibilidad bivariado al modificarse algunos valores asignados en el modelo, mientras que se mantuvo entre los pacientes. Conclusión. Las diferencias en las utilidades asignadas por pacientes y cirujanos, podrían deberse a la falta de información ofrecida al grupo de pacientes y a la diferencia de intereses entre unos y otros, si esto se corrige, la discrepancia entre los dos grupos logrará cerrarse, y a lo mejor podrían llegar a encontrar que la misma decisión es verdaderamente la más conveniente para ambos.Background. The proportion of third party surgeries molars that are carried out in a prophylactic way is difficult to reckon in a precise way and depends in many cases of the definition that be given for this term. Objective. To determinate between patients and surgeons the best choice for third molar surgery. Materials and methods. In order to define the treatment of third molar retained an analysis of decisions was used The probability for events was obtained from literature. The utility was designed

  5. Projection of the oblique line in periapical radiographs of mandibular molars = Projeção da linha oblíqua na região de molares inferiores em radiografias periapicais

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    Borghetti, Ruchielli Loureiro

    2010-01-01

    Objetivo: Identificar e quantificar a frequência da projeção da linha oblíqua sobre as cristas alveolares dos molares inferiores em radiografias periapicais. Metodologia: Foram selecionadas 500 radiografias periapicais da região de molares inferiores e avaliada a presença ou a ausência da linha oblíqua. Quando presente, foi analisada a interferência desta estrutura sobre a imagem das cristas alveolares dos molares inferiores. Os dados obtidos, considerando a frequência da sobreposição da linh...

  6. Comparison of periodontal ligament injection and inferior alveolar nerve block in mandibular primary molars pulpotomy: a randomized control trial.

    Science.gov (United States)

    Haghgoo, Roza; Taleghani, Ferial

    2015-05-01

    Inferior alveolar nerve block is a common technique for anesthesia of the primary mandibular molars. A number of disadvantages have been shown to be associated with this technique. Periodontal ligament (PDL) injection could be considered as an alternative to inferior alveolar nerve block. The aim of this study was to evaluate the effectiveness of PDL injection in the anesthesia of primary molar pulpotomy with mandibular block. This study was performed using a sequential double-blind randomized trial design. 80 children aged 3-7 years old who required pulpotomy in symmetrical mandibular primary molars were selected. The teeth of these children were anesthetized with periodontal injection on one side of the mandible and block on the other. Pulpotomy was performed on each patient during the same appointment. Signs of discomfort, including hand and body tension and eye movement, the verbal complaint and crying (SEM scale), were evaluated by a dental assistant who was blinded to the treatment allocation of the patients. Finally, the data were analyzed using the exact Fisher test and Pearson Chi-squared exact test. Success rate was 88/75 and 91/25 in the PDL injection and nerve block groups, respectively. There was no statistically significant difference between the two techniques (P = 0.250). Results showed that PDL injection can be used as an alternative to nerve block in pulpotomy of the mandibular primary molars.

  7. Movimentação de molares inferiores ancorados em mini-parafusos Mandibular molar uprighting, using mini-screw as anchorage

    Directory of Open Access Journals (Sweden)

    Rosana Canteras Di Matteo

    2005-08-01

    Full Text Available Freqüentemente a movimentação ortodôntica exige recursos adicionais de ancoragem. Os mini-parafusos têm-se apresentado como uma possível solução. O propósito deste trabalho foi estabelecer um método para a verticalização de molares inferiores inclinados para mesial, utilizando ancoragem em mini-parafusos colocados na região de linha oblíqüa externa da mandíbula. Foram selecionados três pacientes entre 40 a 48 anos (dois do gênero feminino, um do gênero masculino, com molares inferiores inclinados para mesial e distalmente posicionados às áreas edêntulas. Os pacientes foram tratados ortodonticamente durante um período de 6 a 12 meses, com técnica ortodôntica MD3. Mini-parafusos de titânio foram colocados bilateralmente com anestesia local. Uma incisão sobre a linha oblíqüa externa da mandíbula, medindo aproximadamente 1 cm foi realizada em cada lado, distalmente aos molares inclinados. Após descolamento muco-periosteal, mini-parafusos foram implantados e foram realizadas suturas deixando suas cabeças exteriorizadas. Uma semana após a remoção das suturas, cargas ortodônticas (entre 150 a 200 gramas/força foram aplicadas através de forças elásticas. Verificamos que alguma inflamação foi observada ao redor dos mini-parafusos, mas foi controlada com procedimentos de higienização. O procedimento cirúrgico é simples, podendo ser realizado pelo ortodontista; as formas dimensionais dos mini-parafusos são adequadas e estes são de fácil remoção após uso. Concluímos que o uso de mini-parafusos representa uma alternativa efetiva de ancoragem ortodôntica na verticalização de molares inferiores.Tooth movement frequently requires additional anchorage resources. Mini-screws have been used as a possible solution to this matter. The purpose of this study was to establish a method of mandibular molar uprighting, using mini-screw as anchorage, positioned on the mandibular external oblique line, behind and

  8. A Comparison of Different Volumes of Articaine for Inferior Alveolar Nerve Block for Molar Teeth with Symptomatic Irreversible Pulpitis.

    Science.gov (United States)

    Abazarpoor, Ramin; Parirokh, Masoud; Nakhaee, Nouzar; Abbott, Paul V

    2015-09-01

    Achieving anesthesia in mandibular molar teeth with irreversible pulpitis is very difficult. The aim of this study was to compare the efficacy of 1.8 mL and 3.6 mL articaine for an inferior alveolar nerve block (IANB) when treating molars with symptomatic irreversible pulpitis. In a randomized, double-blind clinical trial, 82 first mandibular molar teeth with symptomatic irreversible pulpitis randomly received conventional IANB injection either with 1 (1.8 mL) or 2 cartridges (3.6 mL) of 4% articaine with 1:100,000 epinephrine. The patients recorded their pain before and during access cavity preparation as well as during root canal instrumentation using a Heft-Parker visual analog scale. No or mild pain was considered as successful anesthesia. Data were analyzed by t and chi-square tests. Eighty patients were eligible to participate in this study, which showed that 3.6 mL articaine provided a significantly higher success rate (77.5%) of IANBs compared with 1.8 mL of the same anesthetic solution (27.5%) although neither group had 100% successful anesthesia (P irreversible pulpitis, but it did not result in 100% anesthetic success. Copyright © 2015 American Association of Endodontists. Published by Elsevier Inc. All rights reserved.

  9. Inferior alveolar nerve injury and surgical difficulty prediction in third molar surgery: the role of dental panoramic tomography.

    Science.gov (United States)

    Jerjes, W; El-Maaytah, M; Swinson, B; Upile, T; Thompson, G; Gittelmon, S; Baldwin, D; Hadi, H; Vourvachis, M; Abizadeh, N; Al Khawalde, M; Hopper, C

    2006-01-01

    The purpose of this study was to evaluate the relationship between preoperative panoramic radiological findings and postoperative inferior alveolar nerve paresthesia following third molar surgery, and to assess the surgical difficulty. This retrospective study involved two groups of patients who were randomly selected. The first group presented with inferior alveolar nerve (IAN) paresthesia following surgery, and the second group presented with no complications, including IAN paresthesia. Radiological findings were collected from the panoramic radiographs of those patients and compared to postoperative paresthesia. The degree of surgical difficulty was also assessed radiographically. The application of Chi-square testing on the numbness group and the control group, as well as the numbness group (two years postoperatively) and the control group, showed that parameters like type of impaction (fully impacted), depth of impaction (depth C), ramus/space (class 3), spatial relationship (distoangular and horizontal), number of roots (multiple and incomplete), shape of root (thick and incomplete), shape of the tip of root (curved and incomplete), and relation to IAN (touching, superimposed, or non-specific) are highly significant (p third molar is > or = 1 mm from IAC has a 98% probability of no numbness, while if the tooth is touching the IAC the probability of numbness between one week and two years, deflection of the root has a 42% probability of > two years numbness, narrowing of the root has 87% of numbness between > one month and six months and one month and six months to > two years numbness, while narrowing of the canal has a probability of 100% of > six months to > two years numbness. By using logistic regression, cases that were recorded as "very difficult," according to the Pederson Difficulty Index, were more likely to develop permanent paresthesia (95%). The application of logistic regression on the radiological findings showed that we can use them in

  10. Estudio comparativo entre el uso de N – 2 butilcianoacrilato modificado y Vicryl 4 – 0 para el cierre de colgajos en cirugía de terceros molares Inferiores retenidos

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    José Ignacio Serrano

    2014-12-01

    Full Text Available La extracción quirúrgica de los terceros molares supone la síntesis de los tejidos incididos previamente. El método de síntesis más utilizado en la práctica diaria del Cirujano Oral es la sutura con materiales convencionales guiados por una aguja para favorecer la cicatrización por primera intención, sin embargo, en la actualidad se ha puesto en boga la utilización de materiales adhesivos a base de Cianoacrilato para reemplazar las suturas convencionales, con el objetivo de disminuir el dolor postoperatorio, la dehiscencia de las heridas, el riesgo de infecciones, entre otros factores no menos importantes. Objetivo: El objetivo de este estudio predictivo es analizar comparativamente el dolor y la cicatrización de la herida postquirúrgica de terceros molares con la utilización de materiales de sutura adhesiva frente a suturas convencionales de vicryl 4/0 en cirugía de terceros molares retenidos. Materiales y métodos: Para este estudio predictivo se midieron los resultados arrojados de dos técnicas de síntesis en tejidos mucosos a través de la utilización de materiales de sutura convencional (vicryl 4/0 y sutura adhesiva a base de cianoacrilato. Se seleccionaron 30 de un universo de 137 pacientes que acuden al quirófano de la FOUCE y a clínicas particulares del cantón Sangolquí - Pichincha, en los que se realizaron 60 incisiones lineales de 3 cm de longitud, de ambos sexos, de entre 16 y 23 años de edad sin antecedentes patológicos personales. 30 incisiones correspondientes al tercer molar inferior izquierdo fueron sometidas a síntesis con material de sutura convencional y 30 incisiones correspondientes al tercer molar inferior derecho se sellaron con sutura adhesiva a base de cianoacrilato. Para valorar el dolor postquirúrgico se utilizó la técnica de escala visual análoga (EVA y para evaluar la dehiscencia de los tejidos se utilizó el método de inspección y observación. Los dos métodos se utilizaron al segundo

  11. Pericoronal ostectomy: an alternative surgical technique for management of mandibular third molars in close proximity to the inferior alveolar nerve.

    Science.gov (United States)

    Tolstunov, Len; Javid, Bahram; Keyes, Lance; Nattestad, Anders

    2011-07-01

    Close proximity of the inferior alveolar nerve (IAN) to mandibular third molars (MTMs) may result in nerve injury during the extraction of third molars. Alternative surgical techniques, such as coronectomy, have been suggested to decrease this risk. This study examined a new alternative technique, the pericoronal ostectomy (PO), that is intended to decrease IAN injury in high-risk cases. This prospective clinical cohort study consisted of 14 patients with 17 MTMs in close relation to the IAN. All patients were subjected to 2- and 3-dimensional preoperative radiographic evaluations. Selected patients with mesioangular and vertical bone impactions were treated by the staged PO technique. An institutional review board approval from the University of the Pacific was given to this study. Because of the PO procedure, all 17 high-risk MTMs in the study erupted to a more occlusal position away from the danger zone of the IAN and were eventually removed (mean distance of eruption, 2.0 mm). Three patients reported a transient neurosensory deficit, 2 with the IAN and 1 with a lingual nerve. All 3 had a full resolution of symptoms within 3 months of the postoperative period. The PO technique appears to be an additional viable alternative technique to extraction of MTMs in intimate proximity to the IAN. Copyright © 2011 American Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved.

  12. Diagnostic value of panoramic radiography in predicting inferior alveolar nerve injury after mandibular third molar extraction: a meta-analysis.

    Science.gov (United States)

    Liu, W; Yin, W; Zhang, R; Li, J; Zheng, Y

    2015-06-01

    The aim of this study was to evaluate the predictive value of panoramic radiography on inferior alveolar nerve (IAN) injury after extraction of the mandibular third molar. Relevant studies up to 1 June 2014 that discussed the association of panoramic radiography signs and post-mandibular third molar extraction IAN injury were systematically retrieved from the databases of PubMed, Embase, Springerlink, Web of Science and Cochrane library. The effect size of pooled sensitivity, specificity, positive likelihood ratios (PLR), negative likelihood ratios (NLR) and diagnostic odds ratio (DOR) with their 95% confidence intervals (CI) were statistically analysed with Meta-disc 1.4 software. Nine articles were included in this meta-analysis. The pooled estimates of sensitivity and specificity were 0.56 (95% CI: 0.50-0.61) and 0.86 (95% CI: 0.84-0.87), respectively. The overall PLR was 3.46 (95% CI: 2.02-5.92) and overall NLR was 0.58 (95% CI: 0.45-0.73). The pooled estimate of DOR was 6.49 (95% CI: 2.92-14.44). The area under the summary receiver operating characteristic curve was 0.7143 ± 0.0604. The meta-analysis indicated that interpretation of panoramic radiography based on darkening of the root had a high specificity in predicting IAN injury after mandibular third molar extraction. However, the ability of this panoramic radiography marker to detect true positive IAN injury was not satisfactory. © 2015 Australian Dental Association.

  13. Má oclusão de Classe I com biprotrusão e ausência dos primeiros molares inferiores Angle Class I malocclusion with bimaxillary dental protrusion and missing mandibular first molars

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    Aldino Puppin Filho

    2011-12-01

    Full Text Available O presente relato de caso descreve o tratamento ortodôntico de uma paciente de 24 anos de idade, portadora de má oclusão de Classe I de Angle, com protrusão dos incisivos superiores e inferiores, além de perda recente dos primeiros molares inferiores. O tratamento idealizado envolveu a exodontia dos primeiros pré-molares superiores, aliada ao fechamento dos espaços presentes na arcada inferior. O resultado obtido demonstra a necessidade de planos de tratamento individualizados e a importância dos conceitos biomecânicos para movimentar adequadamente os dentes. Esse caso clínico foi apresentado à Diretoria do Board Brasileiro de Ortodontia e Ortopedia Facial (BBO, representando a categoria livre escolha, como parte dos requisitos para obtenção do título de Diplomado pelo BBO.This case report describes the orthodontic treatment of a 24-year-old patient presenting with Angle Class I malocclusion, bimaxillary dental protrusion and recent loss of mandibular molars. Treatment involved extraction of the maxillary first premolars and closing of mandibular first molar spaces. Treatment outcomes demonstrate the need for individualized treatment planning and highlight the key role played by biomechanical concepts in achieving proper orthodontic tooth movement. This case was presented to the Brazilian Board of Orthodontics and Facial Orthopedics (BBO as representative of the free choice category in partial fulfillment of the requirements for obtaining the BBO Diploma.

  14. Comparison of the anesthetic efficacy of articaine infiltration versus lidocaine inferior alveolar nerve block in pulp therapy of lower primary molars

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    Maryam Sharifi

    2017-12-01

    Full Text Available Introduction: Pain control is essential to the behavioral management of children in pediatric dentistry. Effective anesthesia plays a key role in this regard, especially in pulp therapy. In order to achieve successful anesthesia, the type of analgesics and injection techniques should be considered. The present study aimed to compare the anesthetic efficacy of articaine infiltration and lidocaine inferior alveolar nerve block in the pulp therapy of lower primary molars. Materials and Methods: This randomized, crossover, triple-blind clinical trial was conducted on 64 children aged 4-10 years, who required the bilateral pulp therapy of the lower primary molars. Subjects were randomly divided into two groups. Treatment was performed for two sessions, and one lower primary molar was treated in each session. In the first treatment session, subjects in group A were injected with lidocaine inferior alveolar nerve block, and in the second session, they were injected with articaine infiltration. In group B, all the procedures were similar to group A. In the first treatment session, subjects in group B were injected with articaine infiltration, and in the second session, they were injected with lidocaine inferior alveolar nerve block. Pain intensity was measured upon the initiation of the pulp exposure using the visual analogue scale (VAS. Data analysis was performed by crossover analysis, paired t-test, and independent two-sample t-test. Results: During the study period, mean pain intensity in the children treated by lidocaine inferior alveolar nerve block was significantly lower compared to those treated by articaine infiltration. However, the two techniques had no statistically significant difference in the children aged 4-6 years and the treatment of the first primary molars. Conclusion: According to the results, lidocaine inferior alveolar nerve block has higher anesthetic efficacy in the pulp therapy of the lower primary molars compared to articaine

  15. Anesthetic Success of an Inferior Alveolar Nerve Block and Supplemental Articaine Buccal Infiltration for Molars and Premolars in Patients with Symptomatic Irreversible Pulpitis.

    Science.gov (United States)

    Fowler, Sara; Drum, Melissa; Reader, Al; Beck, Mike

    2016-03-01

    The purpose of this retrospective study was to determine the anesthetic success of the inferior alveolar nerve (IAN) block, and supplemental articaine buccal infiltration after a failed IAN block, in first and second molars and premolars in patients presenting with symptomatic irreversible pulpitis. As part of 6 studies, 375 emergency patients presenting with symptomatic irreversible pulpitis received 2% lidocaine with 1:100,000 epinephrine via an IAN block. After profound lip numbness, endodontic access and instrumentation were initiated. If the patient felt moderate to severe pain, a supplemental buccal infiltration of a cartridge of 4% articaine with 1:100,000 epinephrine was administered (204 patients), and endodontic treatment continued. Success was defined as the ability to access and instrument the tooth without pain (visual analogue scale rating of 0) or mild pain (visual analogue scale rating less than or equal to 54 mm). IAN block success was 28% for the first molars, 25% for the second molars, and 39% for the premolars. There were no significant differences when comparing molars with premolars. For the supplemental articaine buccal infiltration, success was 42% for the first molars, 48% for the second molars, and 73% for the premolars. There were no significant differences when comparing the molars, but there was a significant difference when comparing the premolars with the molars. For patients presenting with symptomatic irreversible pulpitis, the success rates for the IAN block and supplemental buccal infiltration of articaine of the molars and premolars would not be high enough to ensure profound pulpal anesthesia. Copyright © 2016 American Association of Endodontists. Published by Elsevier Inc. All rights reserved.

  16. Correlation between radiographic signs of third molar proximity with inferior alveolar nerve and postoperative occurrence of neurosensory disorders: A prospective, double-blind study

    OpenAIRE

    Fábio Wildson Gurgel Costa; Erick Helton Lima Fontenele; Tácio Pinheiro Bezerra; Thyciana Rodrigues Ribeiro; Bárbara Gressy Duarte Souza Carneiro; Eduardo Costa Studart Soares

    2013-01-01

    PURPOSE: To evaluate the interference of radiographic factors in the appearance of sensory deficit related to inferior alveolar nerve (IAN) after third molars (3Ms) removal. METHODS: A prospective, double-blind, observational, unicentric study was performed with 126 patients submitted to a surgical procedure of lower 3Ms removal in the period from March to October/2011. Collected data included gender, age, eruption stage of 3Ms, position/angle of 3Ms (Pell-Gregory and Winter classifications, ...

  17. Tooth Multi-Sectioning with the Use of Magnification, for Extraction of a Deeply Impacted Lower Second Molar with Entrapment of the Inferior Alveolar Nerve: Report of a Case

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    Tilaveridis Ioannis

    2016-03-01

    Full Text Available Inferior alveolar nerve injury is one of the most serious complications of mandibular molar surgery and may lead to litigation for mal-practice. Entrapment of the inferior alveolar nerve to roots of an impacted mandibular molars is extremely rare. The aim of this case report is to stress the importance of tooth multi-sectioning with the use of magnification for the safe removal of a deeply impacted second molar with entrapment of the inferior alveolar nerve in its proximal root.

  18. The horizontal inclination angle is associated with the risk of inferior alveolar nerve injury during the extraction of mandibular third molars.

    Science.gov (United States)

    Ishii, S; Abe, S; Moro, A; Yokomizo, N; Kobayashi, Y

    2017-12-01

    The extraction of mandibular third molars can lead to injury to the inferior alveolar nerve. Hence, it is important to assess the proximity of the root to the inferior alveolar canal before extraction. The classification system of Pell and Gregory and the Winter classification are commonly used to evaluate the positional relationship of the third molar based on radiographs. This retrospective study involving 105 mandibular third molars was performed to assess whether these systems reflect the proximity of the root to the canal (based on computed tomography images), and to identify risk factors for nerve injury. Regarding the prediction of computed tomography-verified canal invasion, the sensitivity, specificity, and positive and negative predictive values were high for each Pell and Gregory category when there was radiographic evidence. The mean distance of invasion was significantly greater in class III than in class I. However, there were no significant differences between the Winter inclination categories. The mean distance differed significantly between a horizontal inclination angle to the buccal side of >5° and an angle of ≤5°. Thus, a horizontal inclination angle >5° represents a novel risk factor for nerve injury. Copyright © 2017 International Association of Oral and Maxillofacial Surgeons. Published by Elsevier Ltd. All rights reserved.

  19. Espessura do assoalho da câmara pulpar de molares decíduos inferiores tratados pelo TRA, pulpotomia e pulpectomia

    OpenAIRE

    Santos, Vanessa Aparecida Carvalho [UNESP

    2008-01-01

    O assoalho da câmara pulpar de molares decíduos apresenta tecido dentinário permeável podendo conter também canais acessórios que conectam a polpa com a área de furca, estabelecendo uma via de transmissão de toxinas bacterianas. O resultado deste processo culmina com danos no assoalho da câmara pulpar, chegando a ocasionar a sua redução. O objetivo deste estudo é o de verificar a espessura do assoalho da câmara pulpar de molares decíduos inferiores, através de imagens radiográficas, relaciona...

  20. Coronectomy versus surgical removal of the lower third molars with a high risk of injury to the inferior alveolar nerve. A bibliographical review

    Science.gov (United States)

    Moreno-Vicente, Javier; Schiavone-Mussano, Rocío; Clemente-Salas, Enrique; Marí-Roig, Antoni; Jané-Salas, Enric

    2015-01-01

    Background Coronectomy is the surgical removal of the crown of the tooth deliberately leaving part of its roots. This is done with the hope of eliminating the pathology caused, and since the roots are still intact, the integrity of the inferior alveolar nerve is preserved. Objectives The aim is to carry out a systematic review in order to be able to provide results and conclusions with the greatest scientific evidence possible. Material and Methods A literature review is carried out through the following search engines: Pubmed MEDLINE, Scielo, Cochrane library and EMI. The level of evidence criteria from the Agency for Healthcare Research and Quality was applied, and the clinical trials’ level of quality was analyzed by means of the JADAD criteria. Results The following articles were obtained which represents a total of 17: 1 systematic review, 2 randomized clinical trials and 2 non-randomized clinical trials, 3 cohort studies, 2 retrospective studies, 3 case studies and 4 literature reviews. Conclusions Coronectomy is an adequate preventative technique in protecting the inferior alveolar nerve, which is an alternative to the conventional extraction of third molars, which unlike the former technique, presents a high risk of injury to the inferior alveolar nerve. However, there is a need for new clinical studies, with a greater number of samples and with a longer follow-up period in order to detect potential adverse effects of the retained roots. Key words: Coronectomy, inferior alveolar nerve, nerve injury, wisdom tooth removal, paresthesia, and systematic review. PMID:25858081

  1. The association between orthodontic treatment and third molar position, inferior alveolar nerve involvement, and prediction of wisdom tooth eruption.

    Science.gov (United States)

    Miclotte, Annelie; Franco, Ademir; Guerrero, Maria Eugenia; Willems, Guy; Jacobs, Reinhilde

    2015-05-01

    The present study aims to compare mandibular third molar position in relation to the mandibular ramus, mandibular third molar angulation, potential impaction and nerve involvement in orthodontic treated versus untreated subjects. The sample consisted of 300 panoramic radiographs 119 males (mean age 16.9 years); 181 females (mean age 16.8 years), contrasting an orthodontically treated (n = 150) to an untreated group (n = 150). Only patients with a full mandibular dentition were included. Pell and Gregory (Dent Digest 39: 330-338, 1933), Winter (Principles of exodontia as applied to the impacted third molars, 1926) and Félez-Gutierrez modified by Gomes (Study of nerve lesion following mandibular third molar surgery, 2011) classifications were used. Radiological information was used to predict eruption. Data was analyzed using frequency analysis and Chi-square testing. 220 lower wisdom teeth (73.3%) were impacted in the treated group, opposed to 236 impacted lower wisdom teeth (78.7%) in the untreated group. A close relation with the mandibular nerve was observed 125 times (41.7%) in the treated group, opposed to an incidence of 112 (37.3%) in the untreated group. The differences were not statistically significant. A partial eruption was predicted for 153 (51%) lower wisdom teeth in the treated group, opposed to 106 (35%) in the untreated group and an impossible eruption in 67 (22%) in the treated group, opposed to 130 (43%). These differences were statistically significant (p third molars, which potentially leads to local clinical morbidities, such as pericoronitis and caries on adjacent teeth. In this context, it may support third molar extractions at an earlier stage in particular cases.

  2. Relationship between inferior alveolar nerve canal position at mandibular second molar in patients with prognathism and possible occurrence of neurosensory disturbance after sagittal split ramus osteotomy.

    Science.gov (United States)

    Yoshioka, Izumi; Tanaka, Tatsurou; Khanal, Amit; Habu, Manabu; Kito, Shinji; Kodama, Masaaki; Oda, Masafumi; Wakasugi-Sato, Nao; Matsumoto-Takeda, Shinobu; Fukai, Yasuhiro; Tokitsu, Takatoshi; Tomikawa, Megumi; Seta, Yuji; Tominaga, Kazuhiro; Morimoto, Yasuhiro

    2010-12-01

    To elucidate the relationship between the anatomic position of the inferior alveolar nerve (IAN) at the mandibular second molar and the occurrence of neurosensory disturbances of the IAN after sagittal split ramus osteotomy (SSRO) in patients with mandibular prognathism. Also, the present study evaluated the difference in anatomic position of the IAN between patients with and without mandibular prognathism. Computed tomography images were taken of 28 patients with mandibular prognathism and 30 without prognathism. On these scans, the IANs from the mandibular second molar region to the mandibular foramen in the mandibular ramus were identified. The present study was designed as a cross-sectional study. The distance from the buccal aspect of the IAN canal to the outer buccal cortical margin of the mandible in the mandibular second molar regions was measured on the computed tomography images. Also, the linear distance between the superior aspect of the IAN canal and the alveolar crest in these regions was calculated. In addition, we investigated the presence or absence of contact between the IAN canal and the inner buccal cortical margin of the mandible from the mandibular second molar to the mandibular foramen in the mandibular ramus. Next, we examined whether neurosensory disturbances occurring after SSRO were related to the position of the IAN at the mandibular second molar. A significant difference was found in the occurrence of neurosensory disturbances of the IAN after SSRO between men and women (χ(2) test, P mandibular second molar region, a significant difference was found between groups with and without neurosensory disturbances (Student's t test, P position of the IAN canal at the mandibular second molar are significantly related to the occurrence of neurosensory disturbances of the IAN after SSRO. Therefore, surgeons should clearly inform patients of the increased possibility of neurosensory disturbances after SSRO when the patients are female and are

  3. Efficacy of supplementary buccal infiltrations and intraligamentary injections to inferior alveolar nerve blocks in mandibular first molars with asymptomatic irreversible pulpitis: a randomized controlled trial.

    Science.gov (United States)

    Parirokh, M; Sadr, S; Nakhaee, N; Abbott, P V; Askarifard, S

    2014-10-01

    This randomized double-blinded controlled trial was performed to compare the efficacy of inferior alveolar nerve block (IANB) injection for mandibular first molar teeth with irreversible pulpitis with or without supplementary buccal infiltration and intraligamentary injection. Eighty-two patients with asymptomatic irreversible pulpitis received either a combination of intraligamentary injection + buccal infiltration+ IANB or with traditional IANB injection in mandibular first molar teeth with irreversible pulpitis. Each patient recorded their pain score on a Heft-Parker visual analogue scale before commencing treatment, in response to a cold test 15 min after the designated anaesthetic injection, during access cavity preparation and during root canal instrumentation. No or mild pain at any stage was considered a success. Data were analysed by chi-square test. At the final stage of treatment, 69 of the 82 patients were eligible to be included in the study. No significant difference was found between age (P = 0.569) and gender (P = 0.570) amongst the patients in the two groups. The success rate of anaesthesia in the IANB and the combination groups were 22% and 58%, respectively. The success rate of anaesthesia in the combination group was significantly higher than the traditional IANB injection (P = 0.003). A combination of anaesthetic techniques can improve the success rate of anaesthesia for mandibular first molar teeth with irreversible pulpitis. © 2013 International Endodontic Journal. Published by John Wiley & Sons Ltd.

  4. Correlation between radiographic signs of third molar proximity with inferior alveolar nerve and postoperative occurrence of neurosensory disorders: a prospective, double-blind study.

    Science.gov (United States)

    Costa, Fábio Wildson Gurgel; Fontenele, Erick Helton Lima; Bezerra, Tácio Pinheiro; Ribeiro, Thyciana Rodrigues; Carneiro, Bárbara Gressy Duarte Souza; Soares, Eduardo Costa Studart

    2013-03-01

    To evaluate the interference of radiographic factors in the appearance of sensory deficit related to inferior alveolar nerve (IAN) after third molars (3Ms) removal. A prospective, double-blind, observational, unicentric study was performed with 126 patients submitted to a surgical procedure of lower 3Ms removal in the period from March to October/2011. Collected data included gender, age, eruption stage of 3Ms, position/angle of 3Ms (Pell-Gregory and Winter classifications, respectively), presence/absence of radiographic signs of 3Ms proximity with the inferior alveolar canal and surgical technique. Occurrence evaluation of the IAN injury was performed on the seventh postoperative day through pin-prick, two-point discrimination and brush directional stroke tests. Predominant radiographic signs were: narrowing of the inferior alveolar canal (68.25%), darkening of root (46.82%) and diversion of the canal (31%). None of the patients presented sensory loss. Sixty-one (48.41%) of the cases had at least one or two radiographic signs of proximity with NAI. Forty-seven (37.3%) had 3 or more signs, and 18 (14.29%) did not have any radiographic signs of proximity to mandibular canal. There was not a positive correlation between presence of radiographic signs of 3Ms with IAN proximity and postoperative neurosensory disorders occurrence.

  5. Correlation between radiographic signs of third molar proximity with inferior alveolar nerve and postoperative occurrence of neurosensory disorders: A prospective, double-blind study

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    Fábio Wildson Gurgel Costa

    2013-03-01

    Full Text Available PURPOSE: To evaluate the interference of radiographic factors in the appearance of sensory deficit related to inferior alveolar nerve (IAN after third molars (3Ms removal. METHODS: A prospective, double-blind, observational, unicentric study was performed with 126 patients submitted to a surgical procedure of lower 3Ms removal in the period from March to October/2011. Collected data included gender, age, eruption stage of 3Ms, position/angle of 3Ms (Pell-Gregory and Winter classifications, respectively, presence/absence of radiographic signs of 3Ms proximity with the inferior alveolar canal and surgical technique. Occurrence evaluation of the IAN injury was performed on the seventh postoperative day through pin-prick, two-point discrimination and brush directional stroke tests. RESULTS: Predominant radiographic signs were: narrowing of the inferior alveolar canal (68.25%, darkening of root (46.82% and diversion of the canal (31%. None of the patients presented sensory loss. Sixty-one (48.41% of the cases had at least one or two radiographic signs of proximity with NAI. Forty-seven (37.3% had 3 or more signs, and 18 (14.29% did not have any radiographic signs of proximity to mandibular canal. CONCLUSION: There was not a positive correlation between presence of radiographic signs of 3Ms with IAN proximity and postoperative neurosensory disorders occurrence.

  6. ESTUDO COMPARATIVO DA POSIÇÃO ÂNTERO POSTERIOR DOS PRIMEIROS MOLARES INFERIORES NO TRATAMENTO ORTODÔNTICO, UTILIZANDO AS TÉCNICAS STRAIGHT-WIRE E EDGEWISE, EM CASOS DE MÁ OCLUSÃO DE CLASSE I DE ANGLE, COM EXTRAÇÃO DE PRIMEIROS PRÉ-MOLARES

    OpenAIRE

    Ferreira, Daniella Prado

    2005-01-01

    Este estudo avaliou o posicionamento ântero posterior dos primeiros molares inferiores, durante o tratamento ortodôntico, utilizando o arco lingual inferior como acessório de ancoragem na técnica Straight-Wire, em comparação aos casos tratados pela técnica Edgewise, sem a utilização do arco lingual. Dois grupos foram selecionados, ambos apresentando má oclusão de Classe I de Angle7, tratados com extração dos primeiros pré-molares superiores e inferiores. Foi utilizada uma amostra de 255 teler...

  7. Evaluation of accessory furcation canals of permanent mandibular molars using radiography and clearing = Avaliação do canal cavo-interradicular em molares inferiores permanentes através de Rx e diafanização

    Directory of Open Access Journals (Sweden)

    Harb, Leandro José Corrêa

    2010-01-01

    Full Text Available Objetivo: Avaliar a presença do canal cavo-interradicular em molares inferiores permanentes através de radiografias e diafanização. Metodologia: A amostra foi constituída por 344 molares inferiores re-hidratados, preparados e armazenados individualmente em recipientes de vidro. A presença do canal cavo-interradicular foi investigada por um único operador treinado usando lupa (4x para as radiografias e microscópio óptico odontológico (30x para as amostras diafanizadas. Microscopia eletrônica de varredura (MEV foi usada para verificar diferenças morfológicas do assoalho pulpar. Resultados: A análise radiográfica mostrou que 9% das amostras tinham uma zona levemente radiolúcida, 2% mostravam uma imagem sugestiva, e 89% das amostras não tinham nenhuma evidência. Pela diafanização, o canal não foi encontrado nas amostras avaliadas. Pela MEV, as amostras recém extraídas mostraram com canalículos dentinários uniformes; as demais apresentaram pequenos sítios com canalículos uniformes. Conclusão: O exame radiográfico não foi o melhor método de diagnóstico; a diafanização é um excelente método avaliativo, pois permite a visualização tridimensional da anatomia interna dental em pesquisas in vitro

  8. Estudo morfológico e análise da microdureza da dentina na área de furca de dentes molares inferiores

    OpenAIRE

    Luís Eduardo Souza Flamini

    2012-01-01

    O presente trabalho teve como objetivo avaliar a microdureza dentinária da região da furca de molares inferiores, assim como estudar, por meio da MEV, a morfologia da dentina nessa região. Utilizaram-se 10 espécimes, os quais tiveram a coroa seccionada transversalmente ao meio, sendo descartada a porção oclusal. As raízes mesial e distal foram cortadas próximas ao terço cervical, desprezando-se os terços médio e apical. O remanescente dental foi incluído em acrílico de rápida polimerização e ...

  9. Disturbio neurosensorial del nervio dentario inferior asociado al tratamiento endodóntico de una tercera molar. Reporte de caso

    OpenAIRE

    Arce De La Cruz, Erika Gaby; Facultad de Estomatología, Universidad Peruana Cayetano Heredia. Lima,; Hernández Añaños, Felipe; Facultad de Estomatología, Universidad Peruana Cayetano Heredia. Lima,

    2014-01-01

    El disturbio neurosensorial del nervio dentario inferior es una complicación que puede ocurrir luego de realizar algunos procedimientos odontológicos como: exodoncia de dientes retenidos,colocación de implantes, y tratamientos endodónticos quirúrgicos y no quirúrgicos. Puede haber daño por injuria mecánica (sobrepase de instrumentos), injuria química (pasaje de hipoclorito o selladores endodónticos) e injuria térmica (sobrecalentamiento por procedimientos quirúrgicos). Los distubios neurosens...

  10. Anesthetic Efficacy of Gow-Gates Nerve Block, Inferior Alveolar Nerve Block, and Their Combination in Mandibular Molars with Symptomatic Irreversible Pulpitis: A Prospective, Randomized Clinical Trial.

    Science.gov (United States)

    Saatchi, Masoud; Shafiee, Maryam; Khademi, Abbasali; Memarzadeh, Bahareh

    2018-03-01

    The purpose of this prospective, randomized clinical trial was to evaluate the anesthetic efficacy of the Gow-Gates nerve block (GGNB), the inferior alveolar nerve block (IANB), and their combination for mandibular molars in patients with symptomatic irreversible pulpitis. One hundred fifty patients diagnosed with symptomatic irreversible pulpitis of a mandibular molar were selected. The patients randomly received 2 GGNB injections, 2 IANB injections, or 1 GGNB injection plus 1 IANB injection of 1.8 mL 2% lidocaine with 1:80,000 epinephrine. Access cavity preparation was initiated 15 minutes after injections. Lip numbness was a requisite for all of the patients. Success was specified as no or mild pain on the basis of Heft-Parker visual analog scale recordings during access cavity preparation or initial instrumentation. Data were analyzed with the chi-square, Kruskal-Wallis, and analysis of variance tests. The success rates of anesthesia were 40%, 44%, and 70% for the GGNB, IANB, and GGNB + IANB groups, respectively. There was no statistically significant difference in the success rate of anesthesia between the GGNB and IANB groups (P > .05). The anesthesia success rate for the GGNB + IANB group was significantly different from those of the GGNB and IANB groups (P irreversible pulpitis, but it would still require supplemental anesthesia. Further research may be needed to confirm the results of this study. Copyright © 2017 American Association of Endodontists. Published by Elsevier Inc. All rights reserved.

  11. Efecto del tratamiento quirúrgico de los terceros molares inferiores sobre el síndrome de disfunción temporomandibular

    Directory of Open Access Journals (Sweden)

    José Manuel Díaz Fernández

    1996-08-01

    Full Text Available Se realizó una investigación con la finalidad de determinar el efecto del tratamiento quirúrgico de los terceros molares inferiores no erupcionados sobre el síndrome de disfunción temporomandibular en 44 estudiantes, a quienes les efectuaron estudios clinicoestomatognáticos durante los períodos preoperatorio y posoperatorio. El índice de disfunción de Helkimo arrojó disfunción ligera en el 55 % y moderada en el resto durante la fase preoperatoria, mientras que el examen posoperatorio reveló disfunción ligera en el 45 % y moderada o severa en el 55 %. Se comprobaron notables cambios en el rango del movimiento mandibular durante la apertura bucal máxima y en los movimientos de lateralidad de la mandíbula.An investigation was conducted with the aim of determining the effect of surgical treatment of unerupted lower third molars on the temporomandibular joint dysfunction syndrome in 44 students who underwent clinical and stomatognathic studies during the preoperative and postoperative period. The index of Helkimo's dysfunction yielded a mild dysfunction in 55 % of cases, and a moderate dysfunction in the remaining patients during the preoperative phase, while the postoperative examination revealed a mild dysfunction in 45 % of patients and a moderate to severe dysfunction in 55 % of cases. Remarkable changes were proved regarding the rank of mandibular movement during maximum oral opening and in lateral movements of the jaw.

  12. Comparison of two needle models in terms of bevel deformation during truncal block of the inferior alveolar nerve

    OpenAIRE

    Almendros Marqués, Nieves; Delgado Molina, Esther; Tamarit Borrás, Meritxell; Berini Aytés, Leonardo; Gay Escoda, Cosme

    2007-01-01

    Objetivos: Evaluar las posibles diferencias existentes en cuanto a la deformación del bisel de dos tipos de aguja de igual longitud y calibre externo, pero de distinto diámetro interno, durante el bloqueo troncal del nervio dentario inferior. Diseño del estudio: Cuatro operadores de similar formación quirúrgica realizaron el bloqueo troncal del nervio dentario inferior y la anestesia infiltrativa del nervio bucal para proceder a la extracción quirúrgica o convencional del tercer molar infe...

  13. Avaliação de dois protocolos farmacológicos em exodontias de terceiros molares inferiores retidos

    OpenAIRE

    Júlio Cesar Leite da Silva

    2011-01-01

    Resumo: A análise das complicações pós-operatórias na remoção de terceiros molares retidos tem sido comumente usada e amplamente aceita como modelo para avaliar a eficácia dos vários fármacos analgésicos e anti-inflamatórios em humanos. Entretanto, ainda não existe consenso na literatura a respeito do melhor protocolo para o controle medicamentoso da dor e/ou inflamação nesse tipo de procedimento. Foi proposta deste estudo randomizado, duplo-cego e cruzado, observar e comparar a eficácia de d...

  14. Precisão e confiabilidade de um localizador apical na odontometria de molares inferiores: estudo in vitro = Accuracy and reliability of an apex locator for working length determination of lower molars: an in vitro study

    Directory of Open Access Journals (Sweden)

    Brito-Júnior, Manoel

    2007-01-01

    Full Text Available O presente estudo in vitro teve por objetivo avaliar a precisão e a confibialidade de um modelo de localizador apical eletrônico (LAE na obtenção do comprimento de trabalho (CT em molares inferiores. Após adequado acesso endodôntico e manobras iniciais de exploração em 20 dentes, mediu-se com uma lima K # 10 o comprimento dos condutos mésio-vestibular (MV e distal (D até o forame apical, subtraindo-se 1 mm (CT1, tendo como referências externas as cúspides mésio-vestibular e disto-vestibular, respectivamente. Os dentes foram fixados em recipientes plásticos contendo alginato procedendo-se as medidas eletrônicas com o LAE Novapex (Fórum,Israel. Limas K # 10 foram inseridas nos canais MV e D até que os instrumentos atingissem a marca 0 no visor do aparelho e posteriormente realizava-se o recuo até a marca 1, ajustando-se os cursores nas mesmas referências externas do CT1. As mensurações com o LAE foram realizadas em triplicata, adotando-se a média das medidas, por dois operadores calibrados, um estudante de gradução (CT2 e um especialista em endodontia (CT3. O coeficiente de correlação linear de Pearson revelou alta concorcândia inter–operadores e intraoperadores. Para comparação do CT1, CT2 e CT3 foi aplicado o Teste t de Student para amostras pareadas (p < 0,05, que não mostrou diferenças significativas entre todas as medidas odontométricas para os canais radiculares MV (p = 0,22 e D (p = 0,94. Portanto, o LAE testado mostrou-se preciso e confiável na determinação da odontometria de molares inferiores

  15. Anaesthetic efficacy of supplemental lingual infiltration of mandibular molars after inferior alveolar nerve block plus buccal infiltration in patients with irreversible pulpitis.

    Science.gov (United States)

    Dou, L; Luo, J; Yang, D

    2013-07-01

    To investigate the effect of supplemental lingual infiltration (LI) of mandibular molars following an inferior alveolar nerve block (IANB) plus buccal infiltration (BI) in patients with irreversible pulpitis. Eighty adult patients diagnosed with irreversible pulpitis participated in this prospective study. All patients received standard IANB via injection of 4 mL of 2% lidocaine with 1 : 100,000 epinephrine. Ten minutes after the IANB, patients with numbness of the lower lip were randomly divided into two groups. In the BI group, 40 patients received supplemental BI of 0.9 mL of 4% articaine with 1 : 100,000 epinephrine. In the buccal plus lingual infiltration (BLI) group, 40 patients received supplemental BI of 0.9 mL of 4% articaine with 1 : 100,000 epinephrine and, subsequently, LIs with the same anaesthetic solution and dose. Endodontic access cavity preparation began 15 min after the IANB. Pain during treatment was recorded using a Heft-Parker visual analogue scale. Success was defined when pain was 'none' or 'mild' on endodontic access and initial instrumentation. The pain was estimated and statistically analysed by the chi-squared test (α = 0.05). The success rates for the BI and BLI groups were 70% and 62.5%, respectively. No statistical difference was found between the two groups (P = 0.478). Supplemental LIs are not recommended for administration in mandibular molars with irreversible pulpitis, because they do not improve the anaesthetic success after IANB plus BI. © 2012 International Endodontic Journal. Published by John Wiley & Sons Ltd.

  16. Five-year results of vital pulp therapy in permanent molars with irreversible pulpitis: a non-inferiority multicenter randomized clinical trial.

    Science.gov (United States)

    Asgary, Saeed; Eghbal, Mohammad Jafar; Fazlyab, Mahta; Baghban, Alireza Akbarzadeh; Ghoddusi, Jamileh

    2015-03-01

    Previous reported results of up to 12 months as well as 24-month follow-ups revealed superior and equivalent treatment outcomes for vital pulp therapy (VPT) using calcium-enriched mixture cement (CEM) in comparison with root canal therapy (RCT) for mature molars with established irreversible pulpitis, respectively. Present non-inferiority multicenter randomized clinical trial assesses the final long-term (5-year) results as well as the effects of patients' age/gender and the presence of preoperative periapical lesion on the treatment outcomes. A total number of 407 patients were blindly allocated into two treatment groups [group 1 (VPT/CEM, n = 205) and group 2 (RCT, n = 202)] treated in 23 health-care centers by calibrated dentists. The treatment outcomes were assessed after 60 months. The 5-year results revealed no significant differences in the successes of both study arms (P = 0.29); a total number of 271 patients were available (~33 % were lost to follow-up). The patients' age/gender did not affect the outcomes; the presence of preoperative periapical lesion also did not implement a significant effect in both groups (P > 0.05). As an alternative for RCT, VPT/CEM can be considered as a valid treatment for vital mature permanent molars clinically diagnosed with irreversible pulpitis. Considering the favorable outcomes of 6- to 60-month follow-ups, as an evidence-based/simple/affordable/effective/biologic approach in cases of irreversible pulpitis, VPT/CEM is highly recommended for universal clinical practice.

  17. Avaliação radiográfica do comportamento dos terceiros molares inferiores em pacientes tratados ortodonticamente com e sem extrações de primeiros pré-molares Radiographic evaluation of the behavior of lower third molars in patients that were orthodontically treated with and without first premolars extractions

    Directory of Open Access Journals (Sweden)

    Reinaldo Roberto Hauy

    2007-12-01

    Full Text Available OBJETIVO: o presente trabalho objetivou avaliar as alterações ocorridas nas posições dos terceiros molares inferiores em pacientes tratados ortodonticamente com extrações dos primeiros pré-molares. METODOLOGIA: utilizou-se 80 ortopantomografias, obtidas no pré e pós-tratamento ortodôntico corretivo de 40 pacientes, divididos em dois grupos. O grupo 1 constou de 20 pacientes (13 femininos e 7 masculinos que se submeteram a tratamento ortodôntico com extrações de primeiros pré-molares. O grupo 2 foi constituído por 20 pacientes (13 femininos e 7 masculinos tratados ortodonticamente sem extrações. Foram estabelecidas medidas angulares, com o objetivo de avaliar as inclinações e medidas lineares, para analisar as modificações no sentido vertical dos terceiros molares. Todos os dados foram mensurados duas vezes, cujos valores médios foram submetidos dos testes t emparelhado e teste t independente. RESULTADOS: os resultados mostraram diferenças estatisticamente significantes (pAIM: The aim of this study is to evaluate the positional changes occurred with lower third molars in patients treated orthodontically with extractions of first premolars. METHODS: A total of 80 panoramic radiographs obtained at pre and post-treatment periods from 40 patients, were divided into 2 groups: group 1 were composed by 20 patients (13 female and 7 male that were submitted to orthodontic treatment with extraction of first premolars; group 2 were composed by 20 patients (13 female and 7 male that were submitted to orthodontic treatment without extractions. Angular measurements were established to evaluate the tipping and linear measurements were established to analyze the vertical changes of the lower third molars. All data were measured twice and averaged, then submitted to paired and unpaired test. RESULTS: Significant differences were found between the initial and final angular measurements of group 1 (p<0.01. CONCLUSIONS: It was concluded that

  18. Estudio del saco pericoronario asintomático y la justificación de extirpación junto con el diente, en los terceros molares inferiores retenidos

    OpenAIRE

    Ardiles, José Ricardo

    2015-01-01

    Introducción. Una gran parte de la población presenta terceros molares retenidos y no se somete al proceso de extracción quirúrgica. Objetivo. Comprobar que cantidad de sacos pericoronarios de terceros molares inferiores retenidos asintomáticos tienen potencialidad patológica Materiales y métodos. Se realizó un estudio prospectivo en 80 pacientes de la Facultad de Odontología de Córdoba-Argentina. Se realizaron cirugías y toma de material que consistió en sacos pericoron...

  19. Método digital complementar na avaliação da relação entre terceiros molares inferiores com o canal da mandíbula em adolescentes e aultos jovens

    OpenAIRE

    Silva, Fabiana Caroline da

    2013-01-01

    Resumo: Foi realizado um estudo em uma amostra com 66 terceiros molares inferiores (3°MI) de adolescentes e adultos jovens, com indicação de exodontia bilateral. Foi avaliada a relação entre esses dentes e o canal da mandíbula (CM) em radiografias panorâmicas, com o objetivo de identificar características de proximidade entre eles que possam predispor alterações sensoriais do nervo alveolar inferior, após a remoção cirúrgica. Foram estabelecidos os critérios de Rood (1990) e o estado de rizog...

  20. One-year results of vital pulp therapy in permanent molars with irreversible pulpitis: an ongoing multicenter, randomized, non-inferiority clinical trial.

    Science.gov (United States)

    Asgary, Saeed; Eghbal, Mohammad Jafar; Ghoddusi, Jamileh; Yazdani, Shahram

    2013-03-01

    Root canal therapy (RCT) and tooth extraction have been conventional treatment options for management of human mature teeth with irreversible pulpitis. Excellent short-term treatment outcomes of vital pulp therapy with calcium-enriched mixture cement (VPT/CEM), as a new treatment option, on postoperative pain relief was demonstrated; if intermediate- and long-term treatment outcomes of the new treatment are also non-inferior compared to RCT, then VPT/CEM may become a viable treatment option for management of mature teeth with irreversible pulpitis. In 23 healthcare centers, 407 9- to 65-year-old patients were randomly allocated into two study arms including one-visit RCT (reference treatment; n = 202) and VPT/CEM (alternative treatment; n = 205). Six- and twelve-month clinical and radiographic successes were assessed. Mean follow-up times at 6- and 12-month follow-ups were "6.70 ± 0.68 and 6.72 ± 0.71 months" and "12.96 ± 0.67 and 12.90 ± 0.66 months" in the available cases of RCT and VPT/CEM arms, respectively. Favorable clinical success rates in the two study arms did not show statistical difference; however, the radiographic success rate in the VPT/CEM was significantly greater than RCT arm at the two follow-ups (P irreversible pulpitis. The performance of biomaterials such CEM cement may assist in the shift towards more biologic treatments. VPT/CEM may be a realistic alternative treatment for human mature molar teeth with symptoms of irreversible pulpitis; the use of VPT/CEM is highly beneficial for patients as well as general dentists.

  1. Distalização de segundo molar inferior impactado através da utilização de ancoragem esquelética com miniplaca: relato de caso Distalization of impacted mandibular second molar using miniplates for skeletal anchorage: case report

    Directory of Open Access Journals (Sweden)

    Belini Freire-Maia

    2011-08-01

    Full Text Available O presente estudo consiste no relato de um caso onde a distalização do segundo molar inferior impactado do lado direito foi obtida através da ancoragem esquelética com o uso de miniplaca. A verticalização dos segundos molares inferiores impactados, durante muito tempo, colocou-se como um grande desafio para ortodontistas e cirurgiões bucais devido à escassez de recursos de ancoragem destinados para esse fim. A utilização da ancoragem esquelética foi iniciada na clínica ortodôntica em meados dos anos 80 e, desde então, diversas modalidades têm sido desenvolvidas para esse princípio, como a utilização de mini-implantes, implantes dentários e, finalmente, miniplacas, que foram testadas e apresentaram resultados animadores. O assunto é relevante para ortodontistas e cirurgiões bucais, uma vez que o uso das miniplacas pode influir de forma significativa no tratamento de molares inferiores impactados.This study describes a case with an impacted right mandibular second molar which was distalized using miniplates for skeletal anchorage. Uprighting impacted mandibular second molars has been a great challenge for orthodontists and oral surgeons because of the scarcity of anchorage options. Skeletal anchorage was first used in clinical orthodontics in the middle of the 1980s. Since then, several devices have been developed for that purpose, such as mini-screws, tooth implants and, lately, miniplates, which have been tested and showed encouraging results. This topic is relevant for orthodontists and oral surgeons because the use of miniplates may significantly change the treatment of impacted mandibular molars.

  2. Gel de Clorhexidina intra-alveolar en la prevención de la alveolitis tras la extracción de terceros molares inferiores: estudio piloto

    National Research Council Canada - National Science Library

    Infante Cossío, Pedro; Gutiérrez Pérez, José Luis; Romero Ruiz, Manuel María; Torres Lagares, Daniel; Serrera Figallo, María Angeles

    2006-01-01

    ...% chlorhexidine gel, placed only once within the alveolus, on the reduction of the incidence of impacted third molar post-extraction dry socket alveolitis and its post-operative effects on patients. Results. A reduction of 42.65...

  3. Comparación del postoperatorio de dos colgajos en cirugía de terceros molares inferiores Post operative comparison of two flap designs in lower third molar surgery

    National Research Council Canada - National Science Library

    G. Laissle Casas del Valle; P. Aparicio Molares; F. Uribe Fenner; D. Alcocer Carvajal

    2009-01-01

    .... El objetivo del presente estudio es evaluar el postoperatorio de la cirugía de terceros molares mandibulares incluidos, utilizando un colgajo lineal en un lado y un colgajo triangular en el otro lado del mismo paciente. Se realizó...

  4. Comparación del postoperatorio de dos colgajos en cirugía de terceros molares inferiores Post operative comparison of two flap designs in lower third molar surgery

    Directory of Open Access Journals (Sweden)

    G. Laissle Casas del Valle

    2009-06-01

    Full Text Available La cirugía de terceros molares constituye en la práctica de la cirugía oral y maxilofacial, una de las intervenciones más realizadas. Las indicaciones son variadas, desde medidas profilácticas hasta grandes lesiones osteolíticas. Algunas de las consecuencias después de dicha intervención son; edema, trismus y dolor postoperatorio. En la técnica quirúrgica, el colgajo cobra gran importancia a la hora de minimizar estas consecuencias. El objetivo del presente estudio es evaluar el postoperatorio de la cirugía de terceros molares mandibulares incluidos, utilizando un colgajo lineal en un lado y un colgajo triangular en el otro lado del mismo paciente. Se realizó un estudio prospectivo en 15 pacientes de la Facultad de Odontología de la Universidad Mayor. Se tomaron registros fotográficos estandarizados y se midió la apertura bucal máxima pre-quirúrgica de cada paciente. Se registró el edema, la limitación de apertura bucal y el dolor a las 48 horas y a los 7 días, además del tiempo intraoperatorio. Todos los datos fueron analizados estadísticamente. No existen diferencias significativas en el edema, limitación de la apertura ni dolor al utilizar ambos colgajos. Tampoco existe correlación entre el tiempo operatorio y las tres variables estudiadas. El postoperatorio de la cirugía de terceros molares mandibulares incluidos es similar al utilizar un colgajo lineal o un colgajo triangular. El cirujano puede optar por uno o el otro indistintamente, según su preferencia.One of the most common procedures in the field of Oral and Maxillofacial Surgery is third molar surgery. From prophylactic measures to large osteolytic lesions, there are various indications. Some of the consequences of this procedure are; edema, trismus and postoperative pain. Flap design is an important feature of surgical technique that plays a vital role in minimizing these consequences. The objective of this study is a post operative evaluation of included

  5. Comparación del postoperatorio de dos colgajos en cirugía de terceros molares inferiores Post operative comparison of two flap designs in lower third molar surgery

    OpenAIRE

    G. Laissle Casas del Valle; P. Aparicio Molares; F. Uribe Fenner; D. Alcocer Carvajal

    2009-01-01

    La cirugía de terceros molares constituye en la práctica de la cirugía oral y maxilofacial, una de las intervenciones más realizadas. Las indicaciones son variadas, desde medidas profilácticas hasta grandes lesiones osteolíticas. Algunas de las consecuencias después de dicha intervención son; edema, trismus y dolor postoperatorio. En la técnica quirúrgica, el colgajo cobra gran importancia a la hora de minimizar estas consecuencias. El objetivo del presente estudio es evaluar el postoperatori...

  6. Evaluation of low-level laser at auriculotherapy points to reduce postoperative pain in inferior third molar surgery: study protocol for a randomized controlled trial.

    Science.gov (United States)

    Sampaio-Filho, Hélio; Sotto-Ramos, Juliane; Pinto, Erika Horácio; Cabral, Marcia Regina; Longo, Priscila Larcher; Tortamano, Isabel Peixoto; Marcos, Rodrigo Labat; Silva, Daniela Fátima Teixeira; Pavani, Christine; Horliana, Anna Carolina Ratto Tempestini

    2016-09-02

    A comfortable postoperative return to daily activities has increased the need to control inflammation after third molar surgery. Anti-inflammatory drugs and analgesics are not exempt from adverse effects such as allergies and chronic gastritis, and they are not without cost. The association between low-level laser and auricular acupuncture can be an alternative when conventional drugs are contraindicated. Among its advantages, we can mention the low risk of side effects, low cost and simplicity of application. The objective of this study is to evaluate the efficiency of low-level laser at auriculotherapy points in reducing postoperative pain in lower third molar surgery. Ninety bilateral, symmetrical lower third molar surgeries will be performed in 45 healthy patients. Each patient will be their own control, through a split-mouth crossover study. One side of the mouth will be randomly chosen and, immediately after surgery, will be treated with low-level laser. After 21 days, the contralateral side will be operated on with low-level laser simulation used postoperatively. This regimen (laser application or not) will be repeated at 24 and 48 h after surgery. All patients will be requested to take analgesics (acetaminophen) if they have pain, i.e. in case of pain. Neither the surgeon nor the patients will know the assigned treatment. The primary variable will be postoperative pain assessed using a Visual Analog Scale, and the secondary variables will be trismus, edema, local temperature, dysphagia, presence of infection and painkiller ingestion. These variables will be assessed at baseline, 24 h, 48 h and 7 days after surgery. Blood samples for systemic inflammatory cytokine (TNF-α, IL-1, IL-6 and IL-8) analysis will be assessed at baseline and 24 h after surgery. Some authors believe that using a wavelength of 633 to 670 nm is a good option for laser therapy in the field of acupuncture. This wavelength can penetrate biological tissue to a depth of about 3 mm. However

  7. Rare occurrence of the left maxillary horizontal third molar impaction ...

    African Journals Online (AJOL)

    Rare occurrence of the left maxillary horizontal third molar impaction, the right maxillary third molar vertical impaction and the left mandibular third molar vertical impaction with inferior alveolar nerve proximity in a 30 year old female: a case report.

  8. Comparison of the cleaning efficacy of the FKG race system and hand instrument in molar root canal Comparação da eficácia de limpeza entre o sistema FKG race e instrumentos manuais em molares inferiores

    Directory of Open Access Journals (Sweden)

    Carla Renata Sipert

    2006-01-01

    Full Text Available INTRODUCTION AND OBJECTIVE: The aim of this study was to evaluate the ability of root canal cleaning of the RaCe rotary instrumentation system (FKG Dentaire - La-Cheaux-de Fonds - Switzerland, compared to manual filing with Stainless Steel K-files (Maillefer Instruments - Ballaigues - Switzerland. MATERIAL AND METHOD: Twenty extracted human teeth (maxillary molars were selected and their pulp tissue was removed after coronal access. The root canals were filled with a dye (India ink and allowed to dry for 48 hours, followed by establishment of the working length of the mesiobuccal root; then, half of the specimens were instrumented by the modified Oregon technique and the other half were instrumented by crown-down sequence of the RaCe system. After preparation, the teeth were longitudinally sectioned and evaluated according to the amount of remaining dye. RESULTS: Data obtained were registered as numerical scores, and the arithmetic means were compared between groups using the Mann Whitney test. Both techniques were unable to completely clean the interior of the root canals, with a better performance of the manual technique only at the middle third. CONCLUSION: It could be concluded that the RaCe system was able to provide satisfactory cleaning, similar to that obtained by the manual instrumentation technique.Objetivo deste trabalho foi avaliar a capacidade de limpeza de canais radiculares por meio do sistema de instrumentação RaCe (FKG Dentaire - La-Cheaux-de Fonds - Suíça em comparação à instrumentação manual por meio de limas tipo K-File (Maillefer Instruments - Ballaigues - Suíça. Foram selecionados 20 dentes humanos extraídos (molares superiores que tiveram seu conteúdo radicular removido após realização da abertura coronária. Os canais foram preenchidos com corante (tinta nanquim e após 48 horas para secagem, realizou-se a odontometria da raiz mésio-vestibular. Metade dos espécimes foi instrumentada pela técnica de

  9. Effect of Sodium Bicarbonate Buccal Infiltration on the Success of Inferior Alveolar Nerve Block in Mandibular First Molars with Symptomatic Irreversible Pulpitis: A Prospective, Randomized Double-blind Study.

    Science.gov (United States)

    Saatchi, Masoud; Farhad, Ali Reza; Shenasa, Naghmeh; Haghighi, Saeideh Karimi

    2016-10-01

    The purpose of this prospective, randomized, double-blind study was to evaluate the effect of a buccal infiltration of sodium bicarbonate on the anesthetic success of the inferior alveolar nerve block (IANB) for mandibular first molars in patients with symptomatic irreversible pulpitis. One hundred patients diagnosed with symptomatic irreversible pulpitis of a mandibular first molar were selected. The patients randomly received a buccal infiltration injection of either 0.7 mL 8.4% sodium bicarbonate with 0.3 mL 2% lidocaine containing 1:80,000 epinephrine or 0.7 mL sterile distilled water with 0.3 mL 2% lidocaine containing 1:80,000 epinephrine in a double-blind manner. After 15 minutes, all the patients received conventional IANB injection using 3.6 mL 2% lidocaine with 1:80,000 epinephrine. Access cavity preparation was initiated 15 minutes after the IANB injection. Lip numbness was a requisite for all the patients. Success was determined as no or mild pain on the basis of Heft-Parker visual analog scale recordings upon access cavity preparation or initial instrumentation. Data were analyzed using the t, chi-square and Mann-Whitney U tests. The success rate after the buccal infiltration of sodium bicarbonate was 78%, whereas without the buccal infiltration of sodium bicarbonate it was 44% (P irreversible pulpitis. Copyright © 2016 American Association of Endodontists. Published by Elsevier Inc. All rights reserved.

  10. entre la universidad y el tercer sector

    Directory of Open Access Journals (Sweden)

    Alejandro Navas Villar

    2014-01-01

    Full Text Available El modelo de universidad actual tiende a independizarse del tercer sector. Mientras, ambas poseen recursos que pueden beneficiar al otro. La ficha de demandas es un documento que nace en la Universidad de Sevilla como respuesta a esta situación y facilita la petición de recursos del tercer sector. La ficha se puso en práctica en varias organizaciones del tercer sector de Sevilla, Cádiz, Barcelona y Navarra, cuyas demandas de recursos se convierten en datos que recopilamos y analizamos en el presente artículo. De forma complementaria, consideramos también propuestas de acercamiento entre universidad-calle desprendidas de los debates del congreso La Universidad Comprometida, celebrado en Sevilla. Este texto aporta información sobre la situación del tercer sector, permitiendo la optimización de la ficha de demandas y fundamentando otras propuestas de colaboración y cambio en la dinámica universitaria. La construcción de una universidad al servicio del bien común es el telón de fondo de este trabajo.

  11. MOLAR UPRIGHTING

    Directory of Open Access Journals (Sweden)

    Eka Erwansyah

    2006-04-01

    Full Text Available The mesial tipping of molar is frequently found in orthodontic cases. This molar malposition must be corrected since it may cause periodontal disorders, occlusal interferences, and temporomandibular joint dysfunction, and is often needed in planning a fixed bridge. This paper is a literature study to discuss about appliance designs, indication, and contraindications, and complication and treatment protocols of molar uprighting by fixed orthodontic appliances. By knowing the techniques of molar uprighting, the moments mentioned above can be avoided.

  12. Forced extrusion for removal of impacted third molars close to the mandibular canal Extrusión forzada para extraer los terceros molares impactados cerca del canal mandibular

    Directory of Open Access Journals (Sweden)

    Dennis Flanagan DDS

    2012-03-01

    Full Text Available Impacted mandibular third molars can be located in close proximity to the mandibular canal. This creates a risk for the nerve or artery injury. These are contained in the canal. However, the impacted third molar can be moved coronally by orthodontic means, after removal of overlying bone, and safely extracted. The orthodontic intervention slowly moves the tooth apex away from the mandibular canal and reduces the potential for a neural injury. This method may be useful for older patients with root apices that approximate or are actually located in the mandibular canal. This technique needs further study. There is a theoretical potential for neural or arterial injury from physical contact of the tooth apex as it moves by or through the mandibular canal.Los terceros molares inferiores impactados pueden localizarse muy cerca del canal mandibular. Esto constituye un riesgo de lesión del nervio o la arteria, que se localizan dentro del canal. No obstante, el tercer molar impactado puede desplazarse en dirección coronal con ortodoncia, tras ostectomía del hueso suprayacente, y extraerse sin riesgos. La intervención ortodóncica desplaza lentamente el ápice del diente fuera del canal mandibular y reduce la posibilidad de lesión neural. Este método puede ser útil para pacientes de edad avanzada con ápices dentales que se aproximan o en realidad se localizan en el canal mandibular. La técnica necesita un estudio adicional. Hay la posibilidad teórica de lesión neural o arterial a partir del contacto físico del ápice del diente a medida que se desplaza a través del canal mandibular.

  13. La transparecia en el tercer sector

    OpenAIRE

    Cortiñas Domínguez, Noa

    2014-01-01

    El Tercer Sector en España goza según las publicaciones de los observatorios españoles, de mucha credibilidad. Una realidad que nada tiene que ver con la consideración ciudadana del resto de instituciones. A este contraste cabe añadir que según publicaba recientemente Médicos sin Fronteras su número de asociados continuaba aumentando durante el año 2012 a pesar de la crisis económica. Cómo consiguen adquirir financiación y como logran generar confianza. Parece lógico suponer que la transp...

  14. Molar Pregnancy

    Science.gov (United States)

    ... Vaginal bleeding Molar pregnancy Symptoms & causes Diagnosis & treatment Advertisement Mayo Clinic does not endorse companies or products. ... a Job Site Map About This Site Twitter Facebook Google YouTube Pinterest Mayo Clinic is a not- ...

  15. Comparación de la inflamación de tejidos blandos pos extracción simultánea de terceros molares inferiores utilizando en forma unilateral plasma rico en factores de crecimiento en el servicio de cirugía oral y maxilofacial, Hospital Enrique Garcés

    Directory of Open Access Journals (Sweden)

    Iván Enrique Llerena Toapata

    2015-12-01

    Full Text Available La utilización de plasma rico en plaquetas posextracción de terceros molares permite al paciente sometido a este tipo de tratamientos reducir los síntomas negativos que aparecen posterior a la extracción quirúrgica. La siguiente investigación se realizó en 32 pacientes, 17 mujeres y 15 hombres, que acudieron al servicio de Cirugía Oral y Maxilofacial del Hospital Enrique Garcés de la ciudad de Quito con la presencia de terceros molares inferiores incluidos con las mismas características radiográficas en las piezas dentales Nº 38 (lado izquierdo y Nº 48 (lado derecho A cada paciente se le extrajo 10 cc de sangre para preparar mediante centrifugación y activación el plasma rico en plaquetas, el cual se colocó únicamente posterior a la extracción quirúrgica de los terceros molares inferiores, en el alveolo correspondiente a la pieza Nº 48, sin aplicar nada en el alveolo correspondiente a la pieza Nº 38 y de esta manera observamos que, mediante escalas de medición del dolor y mediciones faciales a las 24 horas, 72 horas y 8 días posterior a la cirugía, nos dio como resultado la disminución tanto del dolor como la inflamación en el lado derecho en comparación con el lado izquierdo.

  16. Empleo racional de la coronectomía en la extracción de terceros molares incluidos Rational application of coronectomy when treating lower impacted third molar

    Directory of Open Access Journals (Sweden)

    C. Recio Lora

    2009-08-01

    Full Text Available Los terceros molares son los dientes que, con más frecuencia, sufren el fracaso de su erupción y quedan incluidos o retenidos dentro de los maxilares. Un gran porcentaje de nuestros pacientes presentan los cordales incluidos y, de ellos, una parte importante se acompaña de patología que hace aconsejable su tratamiento quirúrgico. La técnica de la coronectomía aplicada al tercer molar incluido fue descrita por primera vez por Ecuyer y Debien en 1984 como la eliminación parcial de dicho diente, dejando deliberadamente parte de su raíz en el interior de la mandíbula. Fue propuesta para evitar la lesión del nervio dentario inferior (NDI en aquéllos casos en los que existía una íntima relación entre ambas estructuras anatómicas. Aunque el objetivo de la técnica es muy claro, no está libre de controversia, ya que el cirujano debe valorar la posibilidad de una complicación infecciosa de origen pulpar. Presentamos un caso clínico exitoso de esta técnica, junto al análisis de la postura ante la técnica de los distintos autores, así como sus ventajas e inconvenientes.Third molars are the teeth that most frequently fail to erupt and remain impacted or retained inside the bone. A large percentage of our patients have impacted wisdom teeth and many of these patients also have pathologies that require surgical treatment. Applied coronectomy technique of the impacted third molar was first described by Ecuyer and Debien in 1984. The described it as partial elimination of the tooth in question, deliberately leaving part of the root inside the bone. This was proposed to avoid injuring the inferior dental nerve in cases where there was a close relationship between the two anatomical structures. Although the objective of the procedure is very clear, it is still controversial. Therefore, the surgeon should evaluate the possibility of an infectious complication of pulpar origin. We present the successful clinical case that uses this technique

  17. Los fundamentos sociales del tercer sector

    Directory of Open Access Journals (Sweden)

    de la Torre, Isabel

    2003-08-01

    Full Text Available The theory of the gift, and the explanatory possibilities that its conceptual meaning offer and its methodological application, is the starting point to analyse the pro-social behaviours, present in the organizations that integrate the Third Sector: associations, foundations, benefit societies, co-operatives and labour societies. In all of these organizations, an interchange of goods and services is exercised, that can not be explained neither by the rules of the market nor by the principles of redistribution of the state. Altruism, solidarity and mutual principles, that inspire the pro-social behaviours, are usually practice through the networks of organized solidarity, that are based on the generalised trust and favour the civil society.

    La teoría del don, y las posibilidades explicativas que brindan su acepción conceptual y su aplicación metodológica, es el punto de partida para analizar los comportamientos prosociales, presentes en las entidades que integran el Tercer Sector: asociaciones, fundaciones, mutualidades, cooperativas y sociedades laborales. En todas estas entidades se ejercita un intercambio de bienes y servicios, que no pueden ser explicados ni por las reglas del mercado ni por los principios de redistribución del Estado. Los principios de altruismo, solidaridad y ayuda mutua, que inspiran los comportamientos prosociales, suelen practicarse a través de las redes de solidaridad organizada y favorecen el desarrollo de la sociedad civil.

  18. Estudio de la efectividad del gel bioadhesivo de clorhexidina en la prevención de la alveolitis y su valor coadyuvante en el postoperatorio tras la extracción de terceros molares inferiores retenidos

    OpenAIRE

    Torres-Lagares, Daniel

    2003-01-01

    La alveolitis es una complicación bastante frecuente tras la extracción, más aún cuando hablamos de la extracción de los terceros molares retenidos. En estos casos la osteítis alveolar es una patología de alto coste social, en forma de días de trabajo perdidos, baja de productividad, consultas de revisión por parte del cirujano y visitas al hospital. El 45% de los pacientes que desarrollan una alveolitis necesitan un mínimo de 4 visitas postoperatorias para diagnosticarla, tratarla y recupera...

  19. Controle da ansiedade odontológica: estudo comparativo entre a sedação oral com midazolam e a sedação consciente com a mistura de óxido nitroso e oxigênio em pacientes submetidos à extração de terceiros molares inferiores

    OpenAIRE

    Darklilson Pereira Santos

    2012-01-01

    O objetivo do trabalho foi avaliar comparativamente o efeito do midazolam 7,5 mg administrado por via oral e da sedação consciente empregando óxido nitroso associado ao oxigênio a 50% em pacientes submetidos à extração de terceiros molares inferiores na alteração do nível de ansiedade do paciente por meio da dosagem de cortisol salivar, no nível de saturação de oxigênio, na frequência cardíaca e na pressão arterial, na produção de amnésia anterógrada, além de avaliar as Escalas de Ansiedade D...

  20. Eficácia anestésica da mepivacaína e da lidocaína no bloqueio mandibular em molares inferiores com pulpite irreversível

    OpenAIRE

    Renata Pieroni Visconti

    2010-01-01

    Neste estudo, randomizado, duplo cego, avaliamos a eficácia anestésica em quarenta e dois pacientes, do Setor de Urgência da Faculdade de Odontologia da Universidade de São Paulo, com pulpite irreversível, que receberam mepivacaína 2% (n=21) ou lidocaína 2% (n=21) associadas à epinefrina 1:100.000 para bloqueio do nervo alveolar inferior (BNAI). O sinal subjetivo de anestesia do lábio e língua, a presença de anestesia pulpar e ausência de dor durante o procedimento de pulpectomia foram avalia...

  1. Inflammatory process decrease by gallium-aluminium-arsenide (GaAlAs) low intensity laser irradiation on postoperative extraction of impacted lower third molar; Reducao de processo inflamatorio com aplicacao de laser de arseneto de galio aluminio ({lambda}=830 nm) em pos-operatorio de exodontia de terceiros molares inferiores inclusos ou semi-inclusos

    Energy Technology Data Exchange (ETDEWEB)

    Atihe, Mauricio Martins

    2002-07-01

    This study aimed the observation of inflammatory process decrease by the use of GaAlAs Low Intensity Laser ({lambda}=830 nm; 40 mW) irradiation. Five patients were selected and submitted to surgery of impacted lower third molars, both right and left sides at different occasions. On a first stage, a tooth of a random chosen side - right or left - was extracted by conventional surgery, without LILT. The inflammatory process was measured at postoperative on the first, third and seventh days. This side was then called 'control side'. After 21 days, period in which the inflammatory process of the first surgery was terminated, the other side surgery took place, this time using LILT (4 J at four spots) at postoperative, first and third days. As the previous surgery, the inflammatory process was also measured at postoperative on the first, third and seventh days. This side was called 'experimental or lased side'. The inflammatory process was evaluated by measuring its four characteristic signs: swelling, pain, color and temperature. It was clearly observed a decrease for swelling, pain and color on the lased side which presented significant inference and descriptive statistics. It can be concluded that GaAlAs Low Intensity Laser ({lambda}=830 nm) can surely be used as an additional and important anti-inflammatory source on impacted lower third molar surgeries. (author)

  2. Impacted Mandibular Third Molars: Review of Literature and a ...

    African Journals Online (AJOL)

    Keywords like impaction, mandibular third molar, impacted mandibular third molar, complications, anatomy, inferior alveolar nerve injury, lingual nerve injury were used to search the databases. A total of 826 articles were screened, and 50 articles were included in the review which was obtained from 1980 to February 2015.

  3. Deciduous molar hypomineralization and molar incisor hypomineralization

    NARCIS (Netherlands)

    Elfrink, M.E.C.; ten Cate, J.M.; Jaddoe, V.W.V.; Hofman, A.; Moll, H.A.; Veerkamp, J.S.J.

    2012-01-01

    This study was embedded in the Generation R Study, a population-based prospective cohort study from fetal life until young adulthood. This study focused on the relationship between Deciduous Molar Hypomineralization (DMH) and Molar Incisor Hypomineralization (MIH). First permanent molars develop

  4. The sealing of second mandibular temporary molar pits and fissure with the laser of Nd: YAG, phosphoric acid and the glass ionomer cement; Selamento de fossulas e fissura de segundo molar deciduo inferior com laser de Nd: YAG, acido fosforico e cimento de ionomero de vidro

    Energy Technology Data Exchange (ETDEWEB)

    Toda, Maria Aparecida

    2003-07-01

    The main of our study was to check the sealing of second mandibular temporary molar pits and fissure, in vitro, with the laser of Nd: YAG, phosphoric acid at 37% and the glass ionomer cement (CIV, Fuji IX GC).The proposal was to check the structural morphologic changes in the laser irradiation upon the enamel surface to watch the pits and fissure sealing with the glass ionomer cement use after the laser irradiation and to verify the efficiency of the 'double conditioning' (phosphoric acid + Nd: YAG). At the same time we watch the evolution of the temperature in the pulp chamber's inside. Our desire was to achieve a therapeutic alternative technic to prevent the dental caries. The Nd: YAG laser parameters were the same: 79 mJ of energy per pulse; frequency of 5 Hz; mean power of 0,4 W; optical fiber on contact of 320 {mu}m diameter; fluency of 99,52 J/ cm{sup 2}, assuming that the only differential was the time of the laser application on the enamel surface. The samples were prepared with this way: Laser Nd: YAG (53 second) + acid + CIV (Fuji IX); Laser Nd: YAG (53 s); Laser Nd: YAG (20 s + 20 s) + acid + CIV; Laser Nd: YAG (20 s + 20 s); Acid + CIV; Control. Through the scanning electron microscopy (MEV) we noticed fusion and resolidification regions due to the laser irradiation and a better adaptation of the glass ionomer cement when we did the 'double conditioning'. Concerning the temperature increase we can conclude that the echeloned period was the best recommended because the temperature was found in a pattern that would not cause any damage to the dental pulp. For future studies we suggest a longer relaxing time between the laser irradiation, a comparative study of this method with other lasers, the use of other sealing materials and the study with the permanent teeth. (author)

  5. El "Tercer Sector", la "Economia Social" y Trabajo Social en Costa Rica

    National Research Council Canada - National Science Library

    Quesada, Ana C

    2009-01-01

    En las ultimas decadas, diversas organizaciones internacionales manifiestan un interes por reformular cientifica y politicamente la propuesta organizacional del "Tercer Sector" y la "Economia Social...

  6. Tercer Simposio Internacional de Bacteriología

    OpenAIRE

    Ana Elvira Farfán-García

    2016-01-01

    Este suplemento reúne 24 resúmenes de proyectos de investigación básica y aplicada que fueron presentados en el marco del Tercer Simposio Internacional de Bacteriología, organizado por el programa de Bacteriología y Laboratorio Clínico de la Facultad de Ciencias de la Salud de la Universidad de Santander UDES, sede Bucaramanga entre el 27 al 29 de abril de 2016 en el marco de la celebración de los 20 años de funcionamiento del programa. En este evento se reunieron investigadores nacionales, i...

  7. Second molar germectomy and third molar eruption. 11 cases of lower second molar enucleation.

    Science.gov (United States)

    Gaumond, G

    1985-01-01

    Eleven cases followed from enucleation of the unerupted lower second molars through third molar eruption. While results were generally good, three presented third molar malpositions requiring further treatment.

  8. [Hyperthyroidism in molar pregnancy].

    Science.gov (United States)

    Boufettal, H; Mahdoui, S; Noun, M; Hermas, S; Samouh, N

    2014-03-01

    Hyperthyroidism is a rare complication of molar pregnancy. We report a 39-year-old woman who presented a thyrotoxic syndrome accompanying a molar pregnancy. Serum thyroid hormones were elevated and returned to normal level after uterine evacuation of a molar pregnancy. The authors detail the role of thyroid stimulating property of human gonadotropin chorionic hormone and its structural changes during the gestational trophoblastic diseases. These changes give the latter the thyroid stimulating properties and signs of hyperthyroidism. Molar pregnancy may be a cause of hyperthyroidism. The diagnosis of molar pregnancy should be a mention to thyrotoxicosique syndrome in a woman of childbearing age. Copyright © 2013. Published by Elsevier SAS.

  9. Removable molar power arm

    Directory of Open Access Journals (Sweden)

    Raj Kumar Verma

    2013-01-01

    Full Text Available Attachment of force elements from the gingival hook of maxillary molar tubes during the retraction of the anterior teeth is very common in orthodontic practice. As the line of force passes below the center of resistance (CR of molar, it results its mesial tipping and also anchorage loss. To overcome this problem, the line of force should pass along the CR of molar. This article highlights a method to overcome this problem by attaching a removable power arm to the headgear tube of molar tube during the retraction of the anterior teeth.

  10. Identidad institucional de las organizaciones del Tercer Sector

    Directory of Open Access Journals (Sweden)

    Isabel de la Torre Prados

    2011-05-01

    Full Text Available El objetivo del artículo es ofrecer una aproximación descriptiva a los rasgos distintivos de las entidades del Tercer Sector, tanto desde el punto de vista de sus características organizativas como de su gobierno y gestión, considerando que estas tres líneas de análisis están condicionadas por el reconocimiento institucional de las funciones sociales que desempeñan el conjunto plural y heterogéneo de sus entidades, entendidas como organizaciones no lucrativas cuyos rasgos básicos son el carácter privado, el principio de no distribución de beneficios, la movilización de recursos voluntarios, la estructura organizativa formal y la capacidad de autonomía y gobierno.

  11. Nueva ciudadanía para el tercer milenio

    Directory of Open Access Journals (Sweden)

    María Gloria Pérez Serrano

    2013-05-01

    Full Text Available El concepto de ciudadanía en las sociedades multiculturales esta experimentado cambios profundos. La nueva ciudadanía que emerge en el alborear del tercer milenio presenta exigencias y posibilidades diversas; los ciudadanos deben estar preparados para afrontarlos. Se abordan en este trabajo los horizontes de la nueva ciudadanía, los nexos entre ciudadanía y nacionalidad, la formación del buen ciudadano crítico así como las dimensiones de esta ciudadanía: democrática, social, paritaria, intercultural y ambiental. Se pone de relieve que el ciudadano en la sociedad actual debe construir su identidad con pertenencias múltiples y aprender a convivir en la diversidad.

  12. Tercer Simposio Internacional de Bacteriología

    Directory of Open Access Journals (Sweden)

    Ana Elvira Farfán-García

    2016-06-01

    Full Text Available Este suplemento reúne 24 resúmenes de proyectos de investigación básica y aplicada que fueron presentados en el marco del Tercer Simposio Internacional de Bacteriología, organizado por el programa de Bacteriología y Laboratorio Clínico de la Facultad de Ciencias de la Salud de la Universidad de Santander UDES, sede Bucaramanga entre el 27 al 29 de abril de 2016 en el marco de la celebración de los 20 años de funcionamiento del programa. En este evento se reunieron investigadores nacionales, internacionales, profesores, estudiantes de pregrado y posgrado, quienes compartieron experiencias y avances de investigación en torno a las ciencias biomédicas. Dentro de los objetivos del tercer simposio estaba divulgar los resultados de investigación de investigadores y estudiantes de diferentes instituciones regionales y nacionales así como establecer alianzas y acercamientos con científicos e investigadores de las instituciones participantes para el fortalecimiento de las líneas de investigación del Grupo de Investigación en Manejo Clínico –CliniUDES-. Entre los temas que fueron tratados en el simposio se destacan: enfermedades emergentes y cambio climático, enfermedades virales tropicales, hematología clínica, síndrome metabólico, actualización en diagnóstico de diabetes, cáncer y marcadores tumorales, gestión del riesgo y genética forense. Los organizadores del evento fueron la Dra. Juanita Trejos Suárez y el Dr. Sergio Yebrail Gómez Rangel acompañados por un comité científico y académico y por estudiantes del programa de Bacteriología y Laboratorio Clínico.

  13. Ruptured tubal molar pregnancy

    African Journals Online (AJOL)

    2011-05-19

    May 19, 2011 ... Nigerian Journal of Clinical Practice • Oct-Dec 2012 • Vol 15 • Issue 4. Yakasai, et al.: Tubal molar pregnancy follow-up using serial βhCG measurements similar to other trophoblastic tumors.[6] The outcome of the treatment of these patients is similar to those coming with non-molar ectopic gestation.

  14. Articulación del Tercer Sector en España

    OpenAIRE

    Ariño Villarroya, Antonio

    2008-01-01

    El artículo analiza la naturaleza e identidad del Tercer Sector en España definido como espacio plural articulado para la producción de bienestar y democracia y cuyos rasgos concretos dependen del régimen de bienestar en el que se incardina. A partir de aquí se analiza la doble visión sociológica sobre la baja articulación del Tercer Sector: como situación provisional previa a la madurez organizativa y como naturaleza específica del Tercer Sector cuya dificultad de articulación se debe a su h...

  15. COMPLICATIONS AFTER EXTRACTION OF IMPACTED THIRD MOLARS - LITERATURE REVIEW

    Directory of Open Access Journals (Sweden)

    Elitsa G. Deliverska

    2016-07-01

    Full Text Available Third molar surgery is the most common procedure performed by oral and maxillofacial surgeons worldwide. This article addresses the incidence of specific complications and, where possible, offers a preventive or management strategy. Complications, such as pain, dry socket, swelling, paresthesia of the lingual or inferior alveolar nerve, bleeding, and infection are most common. Factors thought to influence the incidence of complications after third molar removal include age, gender, medical history, oral contraceptives, presence of pericoronitis, poor oral hygiene, smoking, type of impaction, relationship of third molar to the inferior alveolar nerve, surgical time, surgical technique, surgeon experience, use of perioperative antibiotics, use of topical antiseptics, use of intra-socket medications, and anaesthetic technique. For the general dental practitioner, as well as the oral and maxillofacial surgeon, it is important to be familiar with all the possible complications after this procedure. This improves patient education and leads to prevention, early recognition and management.

  16. Cuartos molares supernumerarios: relato de caso clínico

    Directory of Open Access Journals (Sweden)

    Daniela Nascimento Silva

    2006-04-01

    Full Text Available Los dientes supernumerarios se diagnostican mediante exámenes radiográficos de rutina, pues generalmente son asintomáticos. Los cuartos molares representan el segundo grupo de dientes supernumerarios con más frecuencias; ocurren en posición distal a los terceros molares, especialmente en el maxilar superior, y en la mayoría de casos, estos están incluidos. El objetivo de este artículo es realizar la presentación de un caso, de una mujer de 30 anos con los cuartos molares incluidos en el maxilar inferior y describir la técnica para su remoción.Supernumerary teeth are generally asymptomatic and are diagnosed by routine X-ray tests. The fourth molar teeth represent the second group of the most frequent supernumerary teeth, occur in distal position to the third molar teeth, specially in the superior maxilla and, in most of the cases, they are included. The aim of this paper is to comment on the case of a 30-year-old woman with the fourth molar teeth included in the inferior maxilla and to describe the technique used for their removal.

  17. Biomechanics in Molar Control

    OpenAIRE

    Rendón Giraldo, Juan Esteban; Castaño, Gabriel

    2014-01-01

    Inadequate molar control is one of the difficulties that arise during mechanical treatment. When molar control is handled efficiently, it facilitates precise control of forces and moments, which increases the effectiveness of biomechanics. Knowledge of 4 x 2, 6 x 2 partial systems and the transpalatal bar with its different forms of activation offer a number of advantages that make it possible to optimize orthodontic results. The aim of this article is to clarify concepts, specify possible tr...

  18. El tercer mundo representado: la imagen como nido de estereotipos

    Directory of Open Access Journals (Sweden)

    Rebeca Martín Nieto

    2012-04-01

    Full Text Available Las miradas que se lanzan a los países en vías de desarrollo desde los que no lo son siguen siendo miopes y estereotipadas. Se fomenta, además, a través de las representaciones que se ofrecen de ellos en los medios de comunicación de masas. La imagen que llega a los países del conocido como primer mundo pasa por el tamiz de la espectacularidad de las guerras, los desastres naturales y lo sugerente de la publicidad.Las ONG, las instituciones que más conocen estos países, sus culturas y sus gentes, aún deben trabajar para crear una percepción más cercana y certera de las realidades del Tercer Mundo. Las imágenes que utilizan en la actualidad han evolucionado y se han regulado por códigos deontológicos, pero no consiguen eliminar la imagen de estas sociedades como alejadas, dependientes e infantilizadas.

  19. Inferiority is compex

    Science.gov (United States)

    Wade, Jess

    2017-07-01

    In Inferior: How Science Got Women Wrong and the New Research That's Rewriting the Story, author Angela Saini puts forward the idea that bad science has been used to endorse the cultural prejudice that women are both biologically and psychologically second rate to men.

  20. Varices en Miembros Inferiores

    OpenAIRE

    Velásquez, Edna

    2015-01-01

    Insuficiencia venosa, es cuando las venas de las extremidades inferiores no son capaces de devolver al corazón toda la sangre que les llega y de hacerlo al ritmo y velocidad debidos, se puede afirmar que sufren insuficiencia venosa.

  1. Estudio comparativo en la utilización de drenaje postextracción de terceros molares impactados

    National Research Council Canada - National Science Library

    Hernán Pérez; Rodrigo Bravo; Marcelo Mardones; Juan Argandoña

    2016-01-01

    Objetivos: Determinar el efecto de la utilización de tubos de drenaje con relación a la respuesta inflamatoria y dolorosa postoperatoria en las exodoncias de terceros molares inferiores impactados. Material y método...

  2. Third molar infections.

    Science.gov (United States)

    Gutiérrez-Pérez, José Luis

    2004-01-01

    Pericoronitis is an infectious disease often associated with the eruption of a third molar. It can be either acute (serous and suppurative) or chronic. Pain is usually the predominant symptom in acute stages, whereas chronic forms of the disease may display very few symptoms. Both present exudate. The infection is multimicrobial, predominantly caused strictly by betalactamase-producing anaerobeic microorganisms. Treatment measures are symptomatic, antimicrobial and surgical. Antimicrobial treatment is indicated for preoperative prophylaxis when there is a high risk of postoperative infection and, during the acute stages of suppurative pericoronitis when surgery must be postponed. First-line treatment in this case consists of amoxicillin with associated clavulanic acid. Although surgical treatment of pericoronitis presenting at the third molar is indicated as a Grade C recommendation for extraction, it is the most common indication for extraction of a retained third molar, owing to the improved quality of life it can offer the patient.

  3. Incarcerated inferior lumbar (Petit's) hernia.

    Science.gov (United States)

    Astarcioğlu, H; Sökmen, S; Atila, K; Karademir, S

    2003-09-01

    Petit's hernia is an uncommon abdominal wall defect in the inferior lumbar triangle. Colonic incarceration through the inferior lumbar triangle, which causes mechanical obstructive symptoms, necessitates particular diagnostic and management strategy. We present a rare case of inferior lumbar hernia, leading to mechanical bowel obstruction, successfully treated with prosthetic mesh reinforcement repair.

  4. Lesiones quísticas asociadas a terceros molares retenidos que requirieron hospitalización

    OpenAIRE

    Manuel Estrada Sarmiento

    1998-01-01

    Se realiza una investigación retrospectiva y descriptiva de 18 pacientes hospitalizados que recibieron tratamiento quirúrgico por presentar lesiones quísticas asociadas a un tercer molar retenido, con el objetivo de evaluar dichas lesiones durante el período 1985-1994. De los 18 pacientes 13 eran masculinos, la edad media fue de 33,7 años, 12 pacientes (66,7 %) fueron diagnosticados por exámenes radiológicos. La longitud media de la lesión fue de 39,8 mm, 3 pacientes presentaron signos clínic...

  5. Tecnología de las comunicaciones y Tercer Mundo

    Directory of Open Access Journals (Sweden)

    Dallas W. Smythe

    2015-01-01

    Full Text Available Tecnología encierra una crónica en una sola palabra, un seudónimo de la forma más general del industrialismo moderno: el capitalismo monopolista. No es algo autónomo. Si eso es así, la primera medida que los países del Tercer Mundo deben tomar en sus tratos con ella consiste en desmitificarla. Los mercaderes que trafican su "tecnología" por todo el mundo jamás la definen: venden su hardware y su software y la forma de llevar a cabo las operaciones; para ellos,  "tecnología" significa eso. Los expertos que escriben sobre ella en su mayoría nunca tratan de definir de qué están hablando. Cuando lo intentan, con frecuencia utilizan definiciones como la de E.G. Mesthene, del Programa sobre Tecnología de la Universidad de Harvard, quien expresa que es "... la organización del conocimiento para fines prácticos". Es esta una definición de la sociedad moderna, del industrialismo moderno y del capitalismo monopolista, que desarrollaron la etapa actual de la técnica económica: O, como, Jacques Ellul, identifican "tecnología" con las formas de la sociedad de clases, rastreándola a través de las eras pasadas para mostrar su naturaleza autoritaria y por último diluyendo la cuestión en especulaciones teológicas sobre el origen de la vida. El uso de éste término en la actualidad no se remonta más que a mediados del siglo pasado. En aquel entonces fue adoptado por la Corporación Transnacional (TNC para reemplazar el antiguo término de "artes industriales", que no ocultaba lo que previamente se sabía, o sea que las máquinas y la organización humana para utilizarlas eran la base de la ganancia del capitalismo industrial, entonces emergente.

  6. Semicontinuidad Inferior por Redes

    OpenAIRE

    Sanjuán, Arturo; Universidad Distrital Francisco José de Caldas

    2014-01-01

    Se presenta una construcción de la noción de semicontinuidad inferior a través de las redes. Dicha construcción es diferente a las usualmente presentadas, pues no usa imágenes inversas de conjuntos o filtros. Adicionalmente, se demuestra la equivalencia de una definición usual con la definición propuesta y se presenta un ejemplo de funcionales semicontinuos en donde sea útil la definición propuesta.

  7. Actitud terapéutica ante sacos foliculares de terceros molares incluídos Therapeutic approach to impacted third molar follicles

    Directory of Open Access Journals (Sweden)

    R. González García

    2005-04-01

    Full Text Available El quiste dentígero o folicular es un quiste odontogénico del desarrollo. Está revestido por el epitelio del folículo dentario, y suele estar en relación con un diente permanente incluído. Presentamos el caso clínico de un paciente en el que se observa la aparición de un quiste dentígero a partir del saco folicular de un tercer molar incluído no exodonciado, y lo comparamos con la evolución de un cordal incluído y su saco folicular contralaterales en los que se realizó la exodoncia. El tratamiento definitivo del quiste dentígero asociado a un tercer molar incluído es quirúrgico, con la exodoncia de la pieza y enucleación del quiste. Los sacos foliculares mayores de 2 mm asociados a terceros molares incluídos evolucionan en numerosas ocasiones a quistes foliculares. Está indicada la exodoncia de dichos cordales para evitar la evolución a quiste dentígero.The dentigerous cyst or follicular cyst is a developmental odontogenic cyst. It is covered by the epithelium of the dental follicle, and it tends to be related to an impacted permanent tooth. The case report of a patient who was seen to develop a dentigerous cyst arising from the follicle of an impacted non-extracted third molar is presented. This is then compared with the evolution of the contralateral impacted third molar and its follicle that was extracted. The definitive treatment for a dentigerous cyst associated with an impacted third molar is surgical, the extraction of the tooth and enucleation of the cyst. Follicles measuring more+ than 2 mm and that are associated with impacted third molars often develop into follicular cysts. The extraction of these third molars is indicated in order to avoid the development of a dentigerous cyst

  8. Traumatic neuroma of the inferior alveolar nerve: a case report.

    Science.gov (United States)

    Arribas-García, Ignacio; Alcalá-Galiano, Andrea; Gutiérrez, Ramón; Montalvo-Moreno, Juan José

    2008-03-01

    Traumatic neuromas are rare entities which characteristically arise subsequently to surgery and are usually accompanied by pain, typically neuralgic. We present an unusual case of an intraosseous traumatic neuroma of the inferior alveolar nerve following tooth extraction. A 56-year-old man consulted for paresthesias and hyperesthesia in the left mandibular region following extraction of the left mandibular third molar (#38). The panoramic radiograph revealed a radiolucent lesion in the inferior alveolar nerve canal, and CT demonstrated the existence of a mass within the canal, producing widening of the same. Nerve-sparing excisional biopsy was performed. Histopathology and immunohistochemistry were consistent with traumatic neuroma of the left inferior alveolar nerve. After 3 years of follow-up, the patient is asymptomatic and there are no signs of recurrence.

  9. Coronectomy of Deeply Impacted Lower Third Molar: Incidence of Outcomes and Complications after One Year Follow-Up

    Directory of Open Access Journals (Sweden)

    Jimoh Olubanwo Agbaje

    2015-06-01

    Full Text Available Objectives: The purpose of present study was to assess the surgical management of impacted third molar with proximity to the inferior alveolar nerve and complications associated with coronectomy in a series of patients undergoing third molar surgery. Material and Methods: The position of the mandibular canal in relation to the mandibular third molar region and mandibular foramen in the front part of the mandible (i.e., third molar in close proximity to the inferior alveolar nerve [IAN] or not was identified on panoramic radiographs of patients scheduled for third molar extraction. Results: Close proximity to the IAN was observed in 64 patients (35 females, 29 males with an impacted mandibular third molar. Coronectomy was performed in these patients. The most common complication was tooth migration away from the mandibular canal (n = 14, followed by root exposure (n = 5. Re-operation to remove the root was performed in cases with periapical infection and root exposure. Conclusions: The results indicate that coronectomy can be considered a reasonable and safe treatment alternative for patients who demonstrate elevated risk for injury to the inferior alveolar nerve with removal of the third molars. Coronectomy did not increase the incidence of damage to the inferior alveolar nerve and would be safer than complete extraction in situations in which the root of the mandibular third molar overlaps or is in close proximity to the mandibular canal.

  10. Excess Molar Volumes and Partial Molar Volumes of Binary Systems ...

    African Journals Online (AJOL)

    NJD

    Excess molar volumes have been evaluated from density measurements over the entire composition range for binary systems of an ionic liquid ... was used to fit the excess molar volume data and the partial molar volumes were determined from the Redlich-Kister coefficients. ... ture below the boiling point of water. Most of ...

  11. Tercer Sector : de invitado a imprescindible en la gestión del bienestar

    OpenAIRE

    Navarro Pérez, José Javier; Prado-Conde, Santiago

    2016-01-01

    La gestión de bienestar se configura a partir de un elevado interés por la calidad y rentabilidad. Este sistema de ahorro y abaratamiento de costes hace imprescindible para los Estados la externalización de servicios de bienestar en las entidades del Tercer Sector. Podría considerarse un clientelismo del gasto en política social y de los servicios sociales en los últimos años. Este documento analiza la capacidad organizativa del tercer gestor en la gestión compartida de bienestar, separando l...

  12. Third molar removal: an overview of indications, imaging, evaluation, and assessment of risk.

    Science.gov (United States)

    Marciani, Robert D

    2007-02-01

    Asymptomatic third molars may have associated periodontal pathology that may not be limited to the third molar region and have a negative impact on systemic health. Third molars should be considered for removal when there is clinical, radiographic, or laboratory evidence of acute or chronic periodontitis, caries, pericoronitis, deleterious effects on second molars, or pathology. Radiographic findings of extreme locations of impacted teeth, dense bone, dilacerated roots, large radiolucent lesions associated with impactions, and lower third molar apices in cortical inferior border bone are predictive of more complex surgery. Certain demographic and oral health conditions available to the surgeon before surgery and intraoperative circumstances are predictive of delayed recovery for health-related quality of outcomes and delayed clinical outcomes after third molar surgery.

  13. Anesthetic technique for inferior alveolar nerve block: a new approach

    Directory of Open Access Journals (Sweden)

    Dafna Geller Palti

    2011-02-01

    Full Text Available BACKGROUND: Effective pain control in Dentistry may be achieved by local anesthetic techniques. The success of the anesthetic technique in mandibular structures depends on the proximity of the needle tip to the mandibular foramen at the moment of anesthetic injection into the pterygomandibular region. Two techniques are available to reach the inferior alveolar nerve where it enters the mandibular canal, namely indirect and direct; these techniques differ in the number of movements required. Data demonstrate that the indirect technique is considered ineffective in 15% of cases and the direct technique in 13-29% of cases. OBJECTIVE: The aim of this study was to describe an alternative technique for inferior alveolar nerve block using several anatomical points for reference, simplifying the procedure and enabling greater success and a more rapid learning curve. MATERIAL AND METHODS: A total of 193 mandibles (146 with permanent dentition and 47 with primary dentition from dry skulls were used to establish a relationship between the teeth and the mandibular foramen. By using two wires, the first passing through the mesiobuccal groove and middle point of the mesial slope of the distolingual cusp of the primary second molar or permanent first molar (right side, and the second following the oclusal plane (left side, a line can be achieved whose projection coincides with the left mandibular foramen. RESULTS: The obtained data showed correlation in 82.88% of cases using the permanent first molar, and in 93.62% of cases using the primary second molar. CONCLUSION: This method is potentially effective for inferior alveolar nerve block, especially in Pediatric Dentistry.

  14. Tercer Sector: Una aproximación al debate sobre el término

    Directory of Open Access Journals (Sweden)

    Judith Rodríguez López

    2005-01-01

    Full Text Available En Venezuela, a lo largo de la década de los noventa, se ha incrementado la presencia de algunos tipos de organizaciones sociales, a los cuales, se les adjudican denominaciones como: no gubernamentales, sin fines de lucro, voluntarias, de la sociedad civil y del tercer sector. El objetivo de este trabajo es explorar el concepto de tercer sector, proporcionando algunas definiciones que hemos considerado más consistentes del término. Se encontró que el concepto de tercer sector tiene un carácter amplio y heterogéneo, que para los autores no hace referencia al mismo objeto. Así mismo, se identificaron tres perspectivas interpretativas sobre el concepto. En primer lugar, aquellas que lo consideran como una instancia diferente del Estado y el mercado. En segundo lugar, las que lo concibe como una alternativa, o parte de un "mix" en la provisión de servicios sociales ante las limitaciones del Estado.Ypor último, quienes definen al tercer sector, sin oponerlo al Estado o al Mercado, como una forma de organización social, que indica el surgimiento de nuevos tipos de relaciones sociales.

  15. Taurodontism in deciduous molars.

    Science.gov (United States)

    Bafna, Yash; Kambalimath, H V; Khandelwal, Vishal; Nayak, Prathibha

    2013-06-03

    Taurodont teeth are characterised by large pulp chambers at the expense of roots. An enlarged pulp chamber, apical displacement of the pulpal floor and no constriction at the level of the cement-enamel junction are the characteristic features of taurodont tooth. It appears more frequently as an isolated anomaly but its association with syndromes and other abnormalities have also been reported. Permanent dentition is more commonly affected than deciduous dentition. This paper presents a case report of taurodontism in relation to mandibular deciduous second molars.

  16. Mandibular Third Molar Impaction: Review of Literature and a Proposal of a Classification

    Directory of Open Access Journals (Sweden)

    Gintaras Juodzbalys

    2013-06-01

    Full Text Available Objectives: The purpose of present article was to review impacted mandibular third molar aetiology, clinical anatomy, radiologic examination, surgical treatment and possible complications, as well as to create new mandibular third molar impaction and extraction difficulty degree classification based on anatomical and radiologic findings and literature review results.Material and Methods: Literature was selected through a search of PubMed, Embase and Cochrane electronic databases. The keywords used for search were mandibular third molar, impacted mandibular third molar, inferior alveolar nerve injury third molar, lingual nerve injury third molar. The search was restricted to English language articles, published from 1976 to April 2013. Additionally, a manual search in the major anatomy and oral surgery journals and books was performed. The publications there selected by including clinical and human anatomy studies.Results: In total 73 literature sources were obtained and reviewed. Impacted mandibular third molar aetiology, clinical anatomy, radiographic examination, surgical extraction of and possible complications, classifications and risk factors were discussed. New mandibular third molar impaction and extraction difficulty degree classification based on anatomical and radiologic findings and literature review results was proposed. Conclusions: The classification proposed here based on anatomical and radiological impacted mandibular third molar features is promising to be a helpful tool for impacted tooth assessment as well as for planning for surgical operation. Further clinical studies should be conducted for new classification validation and reliability evaluation.

  17. Mandibular third molar impaction: review of literature and a proposal of a classification.

    Science.gov (United States)

    Juodzbalys, Gintaras; Daugela, Povilas

    2013-07-01

    The purpose of present article was to review impacted mandibular third molar aetiology, clinical anatomy, radiologic examination, surgical treatment and possible complications, as well as to create new mandibular third molar impaction and extraction difficulty degree classification based on anatomical and radiologic findings and literature review results. Literature was selected through a search of PubMed, Embase and Cochrane electronic databases. The keywords used for search were mandibular third molar, impacted mandibular third molar, inferior alveolar nerve injury third molar, lingual nerve injury third molar. The search was restricted to English language articles, published from 1976 to April 2013. Additionally, a manual search in the major anatomy and oral surgery journals and books was performed. The publications there selected by including clinical and human anatomy studies. In total 75 literature sources were obtained and reviewed. Impacted mandibular third molar aetiology, clinical anatomy, radiographic examination, surgical extraction of and possible complications, classifications and risk factors were discussed. New mandibular third molar impaction and extraction difficulty degree classification based on anatomical and radiologic findings and literature review results was proposed. The classification proposed here based on anatomical and radiological impacted mandibular third molar features is promising to be a helpful tool for impacted tooth assessment as well as for planning for surgical operation. Further clinical studies should be conducted for new classification validation and reliability evaluation.

  18. Las entidades del Tercer Sector como prestadores de servicios asistenciales en el IVA: exenciones y tipos reducidos

    National Research Council Canada - National Science Library

    Navarro Egea, Mercedes

    2014-01-01

    El estudio trata de dar respuesta a las incertidumbres que se derivan de la actual regulacion del IVA en materia de asistencia social, un sector de actividad de gran interes para las entidades de la economia social (Tercer Sector...

  19. Tercer Congreso sobre formación de profesores de ciencias

    OpenAIRE

    Diana Parga

    2012-01-01

    Gracias a los resultados altamente positivos logrados en la segunda versión, en la que participaron profesores universitarios argentinos, brasileños, colombianos y chilenos, profesores colombianos de educación media y estudiantes de pregrado y posgrado, se acordó realizar en Bogotá el Tercer Congreso sobre Formación de Profesores de Ciencias, encuentro que se llevará a cabo en septiembre de 2007.

  20. Tercer Congreso sobre formación de profesores de ciencias

    Directory of Open Access Journals (Sweden)

    Diana Parga

    2012-04-01

    Full Text Available Gracias a los resultados altamente positivos logrados en la segunda versión, en la que participaron profesores universitarios argentinos, brasileños, colombianos y chilenos, profesores colombianos de educación media y estudiantes de pregrado y posgrado, se acordó realizar en Bogotá el Tercer Congreso sobre Formación de Profesores de Ciencias, encuentro que se llevará a cabo en septiembre de 2007.

  1. Financiación alternativa para Tercer Sector italiano. Análisis estratégico de crowdfunding

    OpenAIRE

    Avanzati, Tiziano

    2016-01-01

    Las restricciones financieras a las que se enfrentan las empresas del Tercer Sector en la actualidad imponen la necesidad de buscar fuentes de financiación alternativas, postulándose el crowdfunding como una herramienta a tener en cuenta a la hora de reducir las barreras financieras de este tipo de entidades. El presente trabajo realiza un análisis descriptivo del Tercer Sector Italiano ofreciendo asimismo una detallada explicación de ...

  2. Rare courses of the mandibular canal in the molar regions of the human mandible: a cadaveric study.

    Science.gov (United States)

    Sato, Iwao; Ueno, Ryuji; Kawai, Taisuke; Yosue, Takashi

    2005-11-01

    The inferior alveolar artery, vein and nerve send some branches to the molar teeth via the mandibular canal to the mental foramen. The present study attempted to define the presence and course of the mandibular canal in the mandible with the alveolar process by macroscopic cadaveric dissection and computerized tomography (CT) in order to provide information that might prevent injuries to vessels and nerves at risk during root canal treatment. We identified the position of the mandibular canal within a 30% ratio of the distance from inferior border of mandible to the apices of the root for 39 out of 131 sides (mesial root of first molar, 20%; distal root of first molar, 22.6%; mesial root of second molar, 27.8% and distal root of second molar, 47%) on panoramic X-ray observation. In one cadaver (male, 64 years old), the root apex of the second molar was in close proximity to the upper bony mandibular canal. Macroscopic dissection and computerized tomography showed that the main trunks of the inferior alveolar artery, vein, and nerve were in tight contact with the apex of the second molar. These observations of the anatomic course of the mandibular canal will be important to consider during root canal treatment of mandibular teeth.

  3. MOLAR TOOTH SIGN - JOUBERT SYNDROME

    Directory of Open Access Journals (Sweden)

    Dušica Ranđelović

    2015-09-01

    Full Text Available The molar tooth sign is seen in very few conditions and is a very rare pediatric central nervous system congenital anomaly. Molar tooth sign is the result of cerebellar vermis hypoplasia, thick and maloriented superior cerebellar peduncles, and an abnormally deep interpeduncular fossa. In Joubert syndrome, this is seen in about 85% of patients. We present a case of a two-year old girl with flaccid paraparesis, regression of milestones and developmental delay. Magnetic resonance imaging (MRI showed the characteristic molar tooth sign with apposition of cerebellar hemispheres, batwing-shaped fourth ventricle, cerebellar vermis agenesis and deep interpeduncular fossa consistent with the diagnosis of Joubert syndrome.

  4. Anatomia interna dos caninos inferiores

    OpenAIRE

    Oliveira, Simone H.G; Iorio, Lecy S.

    2010-01-01

    A falta de conhecimento da anatomia da cavidade pulpar é uma das principais razões do insucesso da terapia endodôntica dos caninos inferiores. Foram utilizados 1040 caninos inferiores cuja incidência de bifurcações foi avaliada através de estudo radiográfico e comparada com o método de injeção e diafanização dos mesmos dentes. Também foram estudadas outras características internas visualizad...

  5. Ética y economía: el caso del tercer sector

    Directory of Open Access Journals (Sweden)

    Fernando Leal Carretero

    2003-01-01

    Full Text Available Hay tres sectores en la sociedad (el mercado, el gobierno y el “tercer sector” o la “sociedad civil”, cada uno de los cuales tiene su propio papel y función, así como también tiene su propio tipo de falla. Hasta ahora ha sido mérito de la economía descubrir y articular las teorías sobre “fallas de mercados” (sobre cuya base se ha construido el Estado de bienestar y sobre “fallas de gobierno” (que han mostrado los límites de las democracias y las constituciones. Podría ser ya hora de comenzar a pensar sobre las “fallas del tercer sector”, y eso especialmente porque los tres tipos de falla tienen una dimensión ética. La economía puede ayudar a mejorar la calidad del pensamiento ético en relación con la sociedad civil y el tercer sector mostrándonos que, a menudo, no bastan las buenas intenciones. En efecto, la teoría económica nos puede proporcionar las herramientas para analizar los efectos a largo plazo de nuestras decisiones éticas, y eso no solamente en relación con tal o cual grupo particular de presuntos benefi ciarios, sino con relación a todos los grupos de la sociedad.

  6. Reingresos hospitalarios en un servicio de Medicina Interna de un hospital de tercer nivel

    OpenAIRE

    Dolores Estrada Reventós; Mireia López Poyato; Encarna Martín Robles; Rosa M.ª Soriano Giménez; Josep M.ª Grau Junyent

    2014-01-01

    Objetivo principal: Identificar la tipología de pacientes que reingresan y los factores que intervienen en el reingreso hospitalario no planificado de un Servicio de Medicina Interna de tercer nivel. Metodología: Estudio observacional descriptivo con una muestra de 100 pacientes que reingresaron de forma consecutiva y no programada, antes de haber transcurrido 180 días. De cada uno de ellos se estudió variables demográficas, socio-familiares, salud-enfermedad, preocupación al alta anterior, c...

  7. Tendencias del Tercer Sector a partir del análisis de las relaciones de interdependencia

    OpenAIRE

    Vélez Cuartas, Gabriel

    2007-01-01

    Este artículo presenta tres tipos de tendencias del Tercer Sector que pueden deducirse de un análisis de redes basado en teorías interorganizacionales y en teoría de dependencia de recursos. A través de dos estudios de caso realizados en la ciudad de Medellín en Colombia, se presentan algunas categorías que se constituyen en tendencias características del sector. This paper presents three different types of tendencies about third sector. This tendencies could be deduce in a network analysi...

  8. El "tercer mundo" en los medios europeos: Un cuadro patológico

    Directory of Open Access Journals (Sweden)

    Hanelore Döbler

    2015-01-01

    Full Text Available Tanto en EE.UU. como en Europa se han organizado sectores de la sociedad para protestar a viva voz por la forma parcial, discriminatoria, poco diferenciada o simplista con que se publican las noticias sobre el Tercer Mundo, apenas el 4,5 por ciento de toda la información sobre el extranjero es referente a países del sur. Presenta varios resultados de estudios y discusiones para plasmar el cuadro patológico que divulgan los medios impresos y audiovisuales sobre los países en desarrollo, principalmente los alemanes.

  9. Sobre la región de accesibilidad de ciertas iteraciones de tercer orden

    OpenAIRE

    Ezquerro Fernández, José Antonio; Hernández Verón, Miguel Ángel; Romero Álvarez, Natalia

    2007-01-01

    La región de accesibilidad de los procesos iterativos cuando se aplican a la resolución de ecuaciones no lineales adquiere cierto interés a la hora de elegir un proceso iterativo. Sabemos, a priori, que cuanto mayor es el orden de convergencia de los procesos iterativos, menor es su región de accesibilidad. Nosotros aquí presentamos una simple modificación de las iteraciones clásicas de tercer orden de manera que podamos considerar, para cada una de ellas, la misma región de accesibilidad que...

  10. Análisis de los mensajes audiovisuales del Tercer Sector en YouTube

    OpenAIRE

    C Van-Wyck; M Baños González; I Arroyo Almaraz

    2013-01-01

    Introducción. Las redes de la web 2.0 se han convertido en uno de los medios más utilizados por las organizaciones del Tercer Sector. En esta investigación se analizan los aspectos formales, de contenido y de significación de los vídeos emitidos por estas organizaciones a través de YouTube. Metodología. Utilizando como herramienta metodológica el análisis cuantitativo de contenido, se lleva a cabo el estudio de 370 mensajes representativos de este tipo de comunicaciones, con el objetivo de de...

  11. Estrategias de aprendizaje utilizadas por los estudiantes del tercer grado de educación secundaria

    OpenAIRE

    Reyes Yanac, Mirka Jennifer

    2015-01-01

    La tesis tiene como objetivo identificar las estrategias de aprendizaje que utilizan los estudiantes de tercer grado de Educación Secundaria, de la I. E. José Pardo y Barreda de Negritos, Talara. Para ello, se aplicó a 68 alumnos de la institución, un cuestionario cuyo objetivo es la evaluación de las estrategias de aprendizaje de los alumnos de educación secundaria. Finalmente, a través de este trabajo nos situamos en las investigaciones actuales, que consideran que las estrategias de aprend...

  12. La educación emocional en tercer ciclo de Educación Primaria

    OpenAIRE

    Navarrete-Urgell, Mónica

    2015-01-01

    Este trabajo pretende diseñar una propuesta de intervención para mejorar las competencias emocionales de los alumnos de Tercer Ciclo de Educación Primaria. Su objetivo es dar una visión de los beneficios de la educación emocional en el desarrollo de la personalidad integral de los alumnos. Se realiza una explicación teórica de los conceptos para trabajar la educación emocional, tales como conciencia emocional, regulación emocional, autonomía emocional, competencia social y competencia para...

  13. Case Report. Practical Advantages of CBCT in the Surgical Treatment of Impacted Lower Third Molar

    Directory of Open Access Journals (Sweden)

    Ormenișan Alina

    2017-03-01

    Full Text Available Introduction: The imaging method of cone beam is an improved, extremely accurate computed tomography applicable in the whole field of dentistry. Due to its ability to locate the exact position of the impacted teeth, CBCT software has an important role in the management of difficult cases of impacted third molar. In some situations, the lower third molar is quite near to the inferior alveolar nerve that the surgical extraction can present a high risk of post-operative sensitive impairs of the skin and mucosa of the lower lip and chin on the same side. Presentation of case series: Our study tried to assess the contribution of CBCT in the pre-operative evaluation and further treatment of patients with impacted third molars in mandibular bone with high risk of inferior alveolar nerve injury. The paper presents three clinical cases showing positive signs on standard OPG, which exhibit indicators of a potential contact between the inferior alveolar nerve and the impacted lower third molars. For an improved exploration Dental CT Scan, DICOM image acquisition program, and 3D reconstruction with a special software were used. Conclusions: The study showed that compared with panoramic radiography, CBCT improve the evaluation of the surgical risk and allow a more accurate planning of surgery.

  14. Leiomyosarcoma of the inferior turbinate

    Directory of Open Access Journals (Sweden)

    Christopher W. Harper, Jr., MD

    2017-09-01

    Full Text Available We report a case of leiomyosarcoma of the inferior nasal turbinate. The patient, a 68-year-old Caucasian male, presented with 4–6 weeks of epistaxis that was resistant to nasal packing and septal cautery. Upon inspection in the operating room, a small mass was excised from the inferior turbinate. High-power H&E-stained microscopy demonstrated bundles of malignant smooth muscle cells, and immunohistochemical stains were strongly positive for desmin, smooth muscle actin and vimentin, while negative for pankeratin EA1/EA3 and CaM 5.2, suggesting leiomyosarcoma as the diagnosis. Clear margins were obtained at a second surgery. At the time of this writing it is 8 months since his last surgery and he has remained symptom free.

  15. LOS PAÍSES DEL TERCER MUNDO FRENTE A LA CRISIS EUROPEA

    Directory of Open Access Journals (Sweden)

    PEDRO NEL PÁEZ

    2014-01-01

    Full Text Available El objetivo de este documento es determinar los canales de transmisión de la crisis europea hacia los países del Tercer Mundo. El trabajo examina la forma en que la crisis de la deuda soberana se propagó por el sector financiero, a través de la mayor volatilidad de la rentabilidad de los activos. Lo cual se debió a una mayor variación de sus precios, lo que tuvo efectos sobre el patrimonio neto de los agentes económicos, los ingresos, la demanda agregada y la asignación del crédito, así como también sobre la producción y el empleo. Para este documento se hizo búsqueda y selección de literatura especializada y se extrajeron estadísticas especializadas de la UNCTAD, CEPAL y OECD. Se concluye que la transmisión de la crisis europea al Tercer Mundo se dio por canales específicos conocidos, como el comercio internacional, la inversión extranjera directa, las remesas y la ayuda oficial para el desarrollo.

  16. Efficacy of the technique of piezoelectric corticotomy for orthodontic traction of impacted mandibular third molars.

    Science.gov (United States)

    Ma, Zhigui; Xu, Guangzhou; Yang, Chi; Xie, Qianyang; Shen, Yuqing; Zhang, Shanyong

    2015-04-01

    Our aim was to assess the efficacy of piezoelectric corticotomy for orthodontic traction of mandibular third molars close to the inferior alveolar nerve. Thirty patients with impacted third molars close to the nerve were included in the study, 15 of whom were treated with conventional orthodontic traction and 15 with piezoelectric corticotomy. We recorded duration of treatment including exposure and orthodontic traction, and time to the final extraction. Postoperative complications including trismus, swelling, and pain were also noted. Alveolar bone levels mesial and distal to the second molars were evaluated on cone-beam computed tomographic (CT) images. Student's t test was used to assess the significance of differences between the groups. After orthodontic treatments all impacted third molars were successfully removed from the inferior alveolar nerve without neurological damage. The mean (SD) duration of surgical exposure in the piezoelectric corticotomy group was significantly longer than that in the conventional group (p=0.01). The mean (SD) duration of traction was 4 (2.3) months after piezoelectric corticotomy, much shorter than the 7.5 (1.3) months in the conventional group (p=0.03). There were no significant differences in postoperative complications between the groups. There was a significant increase in the distal alveolar height of second molars after treatment in both groups (ppiezoelectric corticotomy allows more efficient and faster traction of third molars with a close relation between the root and the inferior alveolar nerve, although it took longer than the traditional technique. Copyright © 2015 The British Association of Oral and Maxillofacial Surgeons. Published by Elsevier Ltd. All rights reserved.

  17. Resistencia y susceptibilidad de microorganismos aislados en pacientes atendidos en una institución hospitalaria de tercer nivel, Villavicencio-Colombia, 2012

    Directory of Open Access Journals (Sweden)

    Oscar Alexander Gutiérrez Lesmes

    2015-05-01

    Full Text Available Introducción: La resistencia bacteriana es problema significativo de salud pública y está asociada al uso indiscriminado e irracional de antibióticos, lo que afecta la eficacia de los tratamientos. Objetivo: Estimar la resistencia antimicrobiana a los antibióticos resultado de las pruebas invitro de susceptibilidad en una institución hospitalaria de tercer nivel de Villavicencio, Colombia. Materiales y Métodos: Se realizó un estudio observacional, descriptivo de tipo retrospectivo, análisis univariado, calculando medias de las variables susceptibilidad, resistencia, antibiótico, microorganismos, y tipo de muestra resultados de las pruebas de susceptibilidad realizadas mediante técnica de Kirby-Bauer de 485 pruebas de susceptibilidad de la institución hospitalaria. Resultados y Discusión: Los microorganismos más frecuentemente aislados, fueron: Escherichia coli, Klebsiella pneumoniae ss. Pneumoniae, Staphylococcus aureus ss. Aureus representando el 49% de total de microorganismos, los mayores reportes de resistencia en la pruebas invitro las presentaron Serratia marcescens, Staphylococcus saprophyticus ss. Saprophytic, Enterobacter cloacae, presentan una resistencia media superior al 50%, y una susceptibilidad inferior 40%, la mayor resistencia media se presentó para los siguientes antibióticos, Cefalotina 72,2%, Cefazolina 59,9%, Nitrofurantoina 54,4%, Ceftriaxona 52,7%. Conclusiones: Antibióticos como la Cefalotina, Nitrofurantoina, Cefazolina y Ceftriaxona  pierden su utilidad terapéutica dada la elevada resistencia demostrada por los microorganismos aislados en las pruebas invitro, es necesario reforzar las medidas de uso adecuado de antibióticos para disminuir la posibilidad de adaptación y resistencia a los mismos,  el fenómeno de resistencia bacteriana ocurre fuera del ámbito hospitalario evidenciando la necesidad de iniciar también control y vigilancia en infecciones ocurridas en la comunidad.Cómo citar este

  18. Excess Molar Volumes and Partial Molar Volumes of Binary Systems ...

    African Journals Online (AJOL)

    Excess molar volumes have been evaluated from density measurements over the entire composition range for binary systems of an ionic liquid (IL) and an alcohol at T = (298.15, 303.15 and 313.15) K. The IL is 1-butyl-3-methylimidazolium methylsulphate [BMIM]+[MeSO4]– and the alcohols are methanol, ethanol or ...

  19. Efficacy and complications associated with a modified inferior alveolar nerve block technique. A randomized, triple-blind clinical trial

    Science.gov (United States)

    Montserrat-Bosch, Marta; Nogueira-Magalhães, Pedro; Arnabat-Dominguez, Josep; Valmaseda-Castellón, Eduard; Gay-Escoda, Cosme

    2014-01-01

    Objectives: To compare the efficacy and complication rates of two different techniques for inferior alveolar nerve blocks (IANB). Study Design: A randomized, triple-blind clinical trial comprising 109 patients who required lower third molar removal was performed. In the control group, all patients received an IANB using the conventional Halsted technique, whereas in the experimental group, a modified technique using a more inferior injection point was performed. Results: A total of 100 patients were randomized. The modified technique group showed a significantly higher onset time in the lower lip and chin area, and was frequently associated to a lingual electric discharge sensation. Three failures were recorded, 2 of them in the experimental group. No relevant local or systemic complications were registered. Conclusions: Both IANB techniques used in this trial are suitable for lower third molar removal. However, performing an inferior alveolar nerve block in a more inferior position (modified technique) extends the onset time, does not seem to reduce the risk of intravascular injections and might increase the risk of lingual nerve injuries. Key words:Dental anesthesia, inferior alveolar nerve block, lidocaine, third molar, intravascular injection. PMID:24608204

  20. Gestión del conocimiento en el tercer sector: de la competitividad a la eficiencia organizacional

    OpenAIRE

    Cristian Bedoya-Dorado

    2015-01-01

    El estudio tiene como objetivo presentar una reflexión sobre el aporte de la gestión del conocimiento (GC) a la eficiencia en organizaciones del tercer sector. Para ello se llevó a cabo un análisis de contenido de una recopilación de 35 artículos de revistas indexadas JCR y SJR, y de revistas especializadas en GC. El análisis señala que aunque las organizaciones del tercer sector no están llamadas a competir como las organizaciones tradicionales, ni a generar estrategias de captación y fideli...

  1. Morphological study of the pulp of Wistar rats molars under experimental occlusal interference

    OpenAIRE

    PENNA, Luiz Alberto Plácido [UNESP; RODE, Sigmar de Mello

    2000-01-01

    As alterações morfológicas pulpares, decorrentes de um estímulo externo experimental (interferência oclusal), foram estudadas, em nível de microscopia de luz. Utilizaram-se restaurações de amálgama, em sobreoclusão nos primeiros molares superiores direitos de dez ratos Wistar, divididos em 3 grupos e sacrificados por perfusão transcardíaca com formol a 10%, aos 10, 20 e 30 dias. A avaliação foi feita nos molares inferiores direitos (lado experimental) e esquerdos (lado controle). As peças óss...

  2. Apexogénesis de un molar inferior permanente joven con MTA

    OpenAIRE

    Callejas Ospina, Andrés; Jaramillo Builes, William Andrés

    2013-01-01

    Introducción:Uno de los principales objetivos de la terapia endodóntica es realizar una limpieza químico-mecánica del sistema de conductos radiculares con la eliminación completa del tejido pulpar en dientes que tienen su desarrollo completo y han sufrido algún tipo de patología pulpar; sin embargo, hay casos en los que el objetivo es mantener parte de ese tejido para promover el desarrollo de las raíces en dientes que han sufrido algún tipo de afección y no han terminado aún su formación rad...

  3. Clinical relevance of cone beam computed tomography in mandibular third molar removal: A multicentre, randomised, controlled trial

    NARCIS (Netherlands)

    Ghaeminia, H.; Gerlach, N.L.; Hoppenreijs, T.J.; Kicken, M.; Dings, J.P.; Borstlap, W.A.; Haan, T. de; Berge, S.J.; Meijer, G.J.; Maal, T.J.J.

    2015-01-01

    PURPOSE: The aims of this study were to investigate the effectiveness of cone beam computed tomography (CBCT) compared to panoramic radiography (PR), prior to mandibular third molar removal, in reducing patient morbidity, and to identify risk factors associated with inferior alveolar nerve (IAN)

  4. Desvios Axiais dos Membros Inferiores

    OpenAIRE

    Cassiano Neves, M; Campagnolo, J

    2009-01-01

    As deformidades axiais dos membros inferiores constituem um dos principais motivos de consulta na área de Ortopedia Infantil. Esta situação deve-se, por um lado, ao facto de haver uma grande percentagem de crianças (cerca de 20%) que apresentam uma deformidade fisiológica durante o desenvolvimento e, por outro, à «tradição» existente, segundo a qual estes desvios necessitam de um tratamento, usualmente por calçado ortopédico. Torna-se, por isso, imperioso destrinçar o fisiológico do ...

  5. LAS INFOTECNOLOGÍAS EN LA TRANSFORMACIÓN DE LAS RELACIONES DEL TERCER ENTORNO

    Directory of Open Access Journals (Sweden)

    Derlisiret Rincón M.

    2012-11-01

    Full Text Available El punto de partida de este trabajo es exponer el nacimiento del nuevo entramado social; los lazos que se tejen en el denominado Tercer Entono que de una u otra forma han construido una cartografía radicalmente contrapuesta a la tradicionalmente establecida. Así pues, a través del método descriptivo, se reconocen las diversas formas de interacciones y contradicciones que surgen en el espacio telemático y desde donde se crea un ambiente con características propias. Se concluye, que en dicho espacio se origina un ambiente cuyo habitat induce a comportamientos ajenos a los reconocidos y caracterizados desde el cual se perfila y modela un sujeto denominado “Human Plugged”, es decir, un humano conectado al Cyberespacio y sus multitareas, y distante o desconectado del espacio tradicional.

  6. Agencias de empleo y desarrollo local: ¿una actividad del Tercer Sector?

    Directory of Open Access Journals (Sweden)

    Ricardo Calvo Palomares

    2010-01-01

    Full Text Available En la actualidad, el desarrollo económico y social de un territorio necesita de los esfuerzos mancomunados de todos y cada uno de los agentes presentes en el medio. Es por ello que el presente artículo pretende reflexionar sobre la vinculación directa existente entre dos de ellos, por un lado las Agencias de Desarrollo Local (ADL como máximo exponente del modelo de desarrollo local y por otro las organizaciones pertenecientes al Tercer Sector, como entidades clave en el sostenimiento y desarrollo social de la comunidad. Para ello partiendo de las características propias del modelo actual de desarrollo local implantado, propondremos dos decálogos de conclusiones, que analicen tanto las similitudes como las divergencias existentes entre estos dos modelos.

  7. LOS PAÍSES DEL TERCER MUNDO FRENTE A LA CRISIS EUROPEA

    OpenAIRE

    PEDRO NEL PÁEZ; JORGE ISAZA; LUZ AMANDA ZAMORA

    2014-01-01

    El objetivo de este documento es determinar los canales de transmisión de la crisis europea hacia los países del Tercer Mundo. El trabajo examina la forma en que la crisis de la deuda soberana se propagó por el sector financiero, a través de la mayor volatilidad de la rentabilidad de los activos. Lo cual se debió a una mayor variación de sus precios, lo que tuvo efectos sobre el patrimonio neto de los agentes económicos, los ingresos, la demanda agregada y la asignación del crédito, así como ...

  8. Supernumerary molars. A review of 53 cases

    OpenAIRE

    Menardía Pejoan, V.; Berini Aytés, Leonardo; Gay Escoda, Cosme

    2000-01-01

    Supernumerary molars are not uncommon and may be found nearly anywhere in the dental alveolar arches. A series of 36 patients that presented with 53 supernumerary molars are reviewed. They occurred more frequently in the maxilla (86.8%), had little or no clinical significance, tended to be impacted, and were not associated with the impactation of the third molar. Four cases of maxillary fifth molars are described

  9. Impacted lower third molars and distal caries in the mandibular second molar. Is prophylactic removal of lower third molars justified?

    Science.gov (United States)

    Marques, José; Montserrat-Bosch, Marta; Vilchez-Pérez, Miguel-Angel; Valmaseda-Castellón, Eduard; Gay-Escoda, Cosme

    2017-01-01

    Background The objective of this study was to evaluate the association between the presence of mandibular third molars and the occurrence of carious lesions in the distal aspect of the mandibular second molar. Material and Methods A retrospective cohort study comprising 327 lower third molars extracted in the Oral Surgery and Implantology Master’s Degree program of the School of Dentistry of the University of Barcelona (Barcelona, Spain) was carried out. A descriptive and bivariate analysis was made. The diagnosis of caries in the second molar and the position of the mandibular third molar were evaluated through panoramic radiographies. Results The sample included 203 patients, 94 males (46.3%) and 109 females (53.7%), with a mean age of 26,8 years and 327 lower third molars. The prevalence of second molar distal caries was 25.4% (95% CI= 20.6% to 30.2%). This pathology was significantly more frequent when the third molar was in a horizontal position (27.7%), when the contact point was at (45,8%) or below (47.0%) the cementoenamel junction (CEJ), and when the distal CEJ of the mandibular second molar and the mesial CEJ of the third molar was 7 to 12 mm apart. Conclusions Horizontal lower third molars with contact points at or below the CEJ are more likely to produce distal caries in the mandibular second molars. Due to the high prevalence of this pathology (20.6% to 30.2%), a prophylactic removal of lower third molars with the above-mentioned features might be advisable. Key words:Second molar, caries, third molar, prophylactic removal. PMID:28638558

  10. Neurovascular plexus theory for "escape pain phenomenon" in lower third molar surgery

    Directory of Open Access Journals (Sweden)

    Gururaj Arakeri

    2015-06-01

    Full Text Available Pain during extraction of impacted mandibular third molars which can occur despite adequate local anesthesia is termed as "escape pain phenomenon". Recently, it was described during elevation of a mesioangular impacted mandibular third molar and also while curetting an extracted third molar socket. This phenomenon has been overlooked, as it was previously considered secondary to pressure effect on the inferior alveolar neurovascular bundle (IANB. However, it is unlikely that the pain impulses originate from direct pressure on the IANB, as the nerve is blocked more proximally at its entry into the mandible. The authors speculated that the occasional presence of a neurovascular plexus (NVP independent of the IANB causes the escape of a pain impulse upon stimulation by root pressure or instrumentation. To validate the presence of such a plexus, a meticulous literature search and review were performed. The search revealed evidence of the occasional presence of a NVP consisting of auriculotemporal and/or retromolar neural filaments. The plexus may be present around the inferior alveolar artery or embedded within the IANB, and does not innervate the tooth. This plexus likely propagates pain impulses only upon stimulation by compression or instrumentation in the apical area of the tooth socket. This theory explains the absence of pain during tooth sectioning and bone guttering in the presence of a complete inferior alveolar nerve block.

  11. Third molar complications requiring hospitalization.

    Science.gov (United States)

    Kunkel, Martin; Morbach, Thomas; Kleis, Wilfried; Wagner, Wilfried

    2006-09-01

    The aim of this study was to describe demographic and clinical patterns of subjects hospitalized with complications associated with third molars (M3). The investigation was designed as a prospective cohort study composed of subjects admitted to hospital for management of M3-associated complications. The predictor variable was "clinical status of the M3" defined as (A) prophylactic M3 removal, (B) nonelective M3 removal, or (C) M3 present at the time of admission. Outcome variables were infection parameters, treatment costs, length of hospital stay, and days of disability. Postoperative complications (A and B) were compared to complications based on pericoronitis (C). Complications due to prophylactic removal (A) were compared to those arising from pericoronitis or from the removal of symptomatic teeth (B and C). From January 2003 to December 2004, 45 deep space infections, 6 mandibular fractures, 2 lingual nerve injuries, 1 parapharyngeal tooth luxation, and 1 osteomyelitis were noticed. Fifteen complications resulted from prophylactic surgery (A), 25 from nonelective removal (B), and 15 from pericoronitis (C). Direct treatment costs were 147,000 euro (A: 42,000 euro; B: 74,000 euro; C: 31,000 euro). In 10 of the 15 patients of group C, deep space involvement resulted immediately from the first episode of pericoronitis. Neither clinical markers of infection nor economic parameters showed significant differences between the groups. Within the catchment area of our institution, the majority of third molar-related hospitalizations resulted from diseased third molars or their removal.

  12. Variations in the buccal-lingual alveolar bone thickness of impacted mandibular third molar: our classification and treatment perspectives.

    Science.gov (United States)

    Ge, Jing; Zheng, Jia-Wei; Yang, Chi; Qian, Wen-Tao

    2016-01-13

    Selecting either buccal or lingual approach for the mandibular third molar surgical extraction has been an intense debate for years. The aim of this observational retrospective study was to classify the molar based on the proximity to the external cortical bone, and analyze the position of inferior alveolar canal (IAC) of each type. Cone-beam CT (CBCT) data of 110 deeply impacted mandibular third molars from 91 consecutive patients were analyzed. A new classification based on the mean deduction value (MD) of buccal-lingual alveolar bone thickness was proposed: MD≥1 mm was classified as buccal position, 1 mm>MD>-1 mm was classified as central position, MD≤-1 mm was classified as lingual position. The study samples were distributed as: buccal position (1.8%) in 2 subjects, central position (10.9%) in 12 and lingual position (87.3%) in 96. Ninety-six molars (87.3%) contacted the IAC. The buccal and inferior IAC course were the most common types in impacted third molar, especially in lingually positioned ones. Our study suggested that amongst deeply impacted mandibular third molars, lingual position occupies the largest proportion, followed by the central, and then the buccal type.

  13. Regeneración de tejido periodontal in vitro con células madre pluripotenciales de la pulpa dental (DPPSC) del tercer molar

    OpenAIRE

    Hategan, Iulia Emilia

    2016-01-01

    El periodonto está formado por varios tejidos: la encía, el ligamento periodontal, el cemento radicular y el hueso alveolar. El periodonto tiene dos funciones fundamentales: protección e inserción. La función de protección la realizan la encía y el epitelio de unión, mientras que la función de inserción se desempeña a través del ligamento periodontal, el cemento radicular y el hueso alveolar.- El ligamento periodontal es un tejido celular altamente vascularizado que rodea la raíz del dien...

  14. Impacted Mandibular Third Molars: Review of Literature and a Proposal of a Combined Clinical and Radiological Classification.

    Science.gov (United States)

    Santosh, P

    2015-01-01

    Tooth impaction is a pathological situation where a tooth fails to attain its normal functional position. Impacted third molars are commonly encountered in routine dental practice. The impaction rate is higher for third molars when compared with other teeth. The mandibular third molar impaction is said to be due to the inadequate space between the distal of the second mandibular molar and the anterior border of the ascending ramus of the mandible. Impacted teeth may remain asymptomatic or may be associated with various pathologies such as caries, pericoronitis, cysts, tumors, and also root resorption of the adjacent tooth. Even though various classifications exist in the literature, none of those address the combined clinical and radiologic assessment of the impacted third molar. Literature search using the advanced features of various databases such as PubMed, Scopus, Embase, Google Scholar, Directory of Open Access Journals and Cochrane electronic databases was carried out. Keywords like impaction, mandibular third molar, impacted mandibular third molar, complications, anatomy, inferior alveolar nerve injury, lingual nerve injury were used to search the databases. A total of 826 articles were screened, and 50 articles were included in the review which was obtained from 1980 to February 2015. In the present paper, the authors have proposed a classification based on clinical and radiological assessment of the impacted mandibular third molar.

  15. Impacted Mandibular Third Molars: Review of Literature and a Proposal of a Combined Clinical and Radiological Classification

    Science.gov (United States)

    Santosh, P

    2015-01-01

    Tooth impaction is a pathological situation where a tooth fails to attain its normal functional position. Impacted third molars are commonly encountered in routine dental practice. The impaction rate is higher for third molars when compared with other teeth. The mandibular third molar impaction is said to be due to the inadequate space between the distal of the second mandibular molar and the anterior border of the ascending ramus of the mandible. Impacted teeth may remain asymptomatic or may be associated with various pathologies such as caries, pericoronitis, cysts, tumors, and also root resorption of the adjacent tooth. Even though various classifications exist in the literature, none of those address the combined clinical and radiologic assessment of the impacted third molar. Literature search using the advanced features of various databases such as PubMed, Scopus, Embase, Google Scholar, Directory of Open Access Journals and Cochrane electronic databases was carried out. Keywords like impaction, mandibular third molar, impacted mandibular third molar, complications, anatomy, inferior alveolar nerve injury, lingual nerve injury were used to search the databases. A total of 826 articles were screened, and 50 articles were included in the review which was obtained from 1980 to February 2015. In the present paper, the authors have proposed a classification based on clinical and radiological assessment of the impacted mandibular third molar. PMID:26229709

  16. Mini-implants: mechanical resource for molars uprighting

    Directory of Open Access Journals (Sweden)

    Susiane Allgayer

    2013-02-01

    Full Text Available INTRODUCTION: The early orthodontic treatment allows correction of skeletal discrepancies by growth control, and the elimination of deleterious habits, which are risk factors for the development of malocclusions, favoring for the correction of tooth positioning later in a second treatment stage. During development of teeth and occlusion, the mandibular second molars commonly erupt in the oral cavity after all other teeth of the anterior region. In their eruptive process there may be a condition known as tooth impaction, which precludes its complete eruption and requires proper uprighting treatment. The temporary anchorage devices allow disimpaction and movement of these teeth directly to their final position, without the need of patient compliance or reaction movements in other parts of the arch. OBJECTIVE: This paper aims at describing a case report of the treatment of a patient with Angle Class II malocclusion, performed in two phases, in which mini-implants were used for uprighting the impacted mandibular second molars.INTRODUÇÃO: o tratamento ortodôntico precoce permite a correção das discrepâncias esqueléticas por meio do controle de crescimento e a eliminação de hábitos deletérios, que são fatores de risco para o desenvolvimento de más oclusões, que favorecem a correção do posicionamento dentário mais tardiamente, em uma segunda fase do tratamento. Durante o desenvolvimento da dentição e da oclusão, normalmente o segundo molar inferior chega à cavidade bucal após todos os dentes posicionados anteriormente a ele. Durante seu processo eruptivo, pode ocorrer uma condição chamada "impacção dentária", em que sua erupção completa é interrompida, exigindo tratamento apropriado para verticalização. Os dispositivos temporários de ancoragem permitem a desimpacção e a movimentação desses dentes diretamente às suas posições finais, sem a necessidade de cooperação do paciente e sem movimento de reação nas

  17. Comparative study of the anterior-posterior position of the lower first molars in the orthodontic treatment, using Straight-Wire and Edgewise techniques, in cases with Angle Class I malocclusion, with extraction of first premolars

    OpenAIRE

    Ferreira, Daniella Prado

    2005-01-01

    Este estudo avaliou o posicionamento ântero posterior dos primeiros molares inferiores, durante o tratamento ortodôntico, utilizando o arco lingual inferior como acessório de ancoragem na técnica Straight-Wire, em comparação aos casos tratados pela técnica Edgewise, sem a utilização do arco lingual. Dois grupos foram selecionados, ambos apresentando má oclusão de Classe I de Angle7, tratados com extração dos primeiros pré-molares superiores e inferiores. Foi utilizada uma amostra de 255 teler...

  18. CANINE ECTOPIC TREATMENT WITH FIRST MOLAR EXTRACTION

    Directory of Open Access Journals (Sweden)

    Angelica Margo

    2015-06-01

    Full Text Available Decision to extract or not and the type of tooth must be analyzed carefully in orthodontic treatment. Preferable tooth to be extracted was the tooth with large caries or restoration. Usually the type of tooth to be extracted was second molar (if the third molar appears, incisor, first molar, and combination of several teeth. Orthodontic treatment with molar extraction is more difficult to treat and the result is usually compromise. There are several considerations in extracting first molar such as tooth with large caries or restoration, hypoplasia, periapical disease, large discrepancy, high maxilla-mandibular plane angle, and cases with anterior open bite. Nowadays, orthodontic cases with molar extraction do not prolong the treatment time compared to premolar extraction case, but the anchorage system must be considered carefully. The present case was treated with extraction of first molar to solve anterior crowding with maximum anchorage at the upper jaw and using Nance Holding Appliance.

  19. Classification of impacted mandibular third molars on cone-beam CT images.

    Science.gov (United States)

    Maglione, Michele; Costantinides, Fulvia; Bazzocchi, Gabriele

    2015-04-01

    Neurological involvement is a serious complication associated to the surgical removal of impacted mandibular third molars and the radiological investigation is the first mandatory step to assess the risk of a possible post-operative injury to the inferior alveolar nerve (IAN). The aim of this study was to introduce a new radiological classification that could be normally used in clinical practice to assess the relationship between an impacted third molar and mandibular canal on cone beam CT (CBCT) images. CBCT images of 80 patients (133 mandibular third molars) were independently studied by three members of the surgical team to draw a classification that could describe all the possible relationships between third molar and IAN on the cross-sectional images. Subsequently, the study population was subdivided according to this classification. The SPSS software, version 15.0 (SPSS® Inc., Chicago, Illinois, USA) was used for the statistical analysis. Eight different classes were proposed (classes 0-7) and six of them (classes 1-6) were subdivided in two subtypes (subtypes A-B). The distribution of classes showed a prevalence of buccal or apical course of the mandibular canal followed by lingual position and inter-radicular one. No differences have resulted in terms of anatomic relationship between males and females apart from a higher risk of real contact without corticalization of the canal when the IAN had a lingual course for female group. Younger patients showed an increased rate of direct contact with a reduced calibre of the canal and/or without corticalization. The use of this classification could be a valid support in clinical practice to obtain a common language among operators in order to define the possible relationships between an impacted third molar and the mandibular canal on CBCT images. Key words:CBCT, classification, inferior alveolar nerve, third molars.

  20. Morfología interna del primer molar mandibular permanente. Influencia del uso de ultrasonidos y del microscopio operatorio en la localización de conductos

    OpenAIRE

    Valencia de Pablo, Oliver; Pérez Zaballos, María Teresa; Peix Sánchez, Manuel; Estévez Luaña, Roberto; Cisneros Cabello, Rafael

    2012-01-01

    Introducción: Estudios recientes reflejan la existencia de conductos accesorios en las raíces de los primeros molares permanentes inferiores. El objetivo principal de este trabajo es determinar la influencia que tienen el uso de ultrasonidos y el microscopio operatorio en la localización de dichos conductos. Como objetivo secundario, hemos empleado la técnica de diafanización de manera innovadora para visualizar la anatomía real de los molares inferiores tratados...

  1. Observación radiográfica y estudio histológico de un caso de apicoformación en un molar humano

    OpenAIRE

    Canalda Sahli, Carlos

    1989-01-01

    Se describe un caso de apicoformación en un segundo molar inferior derecho. La observación radiográfica revela un cierre apical con un patrón morfológico diferente al del segundo molar inferior izquierdo. Efectuada su exodoncia a los 15 meses, los cortes histológicos seriados muestran un tejido calcificado obturando el foramen apical y bien adaptado a las paredes iniciales de dentina y cemento. En su interior observamos unas pequeñas áreas conteniendo tejido conectivo con capi lares. Las obse...

  2. Positional relationship between mandibular third molar and mandibular canal in cone beam computed tomographs

    Energy Technology Data Exchange (ETDEWEB)

    Yu, Su Kyung; Lee, Ji Un; Kim, Kyoung A; Koh, Kwang Joon [Chonbuk National Univ. Hospital, Chonju (Korea, Republic of)

    2007-12-15

    To provide diagnostic information by evaluation of the positional relationship between the mandibular third molar and the mandibular canal. Eighty-nine mandibular third molars were classified as mesioangular, horizontal, vertical, distoangular groups. The distances between the mandibular third molar and the mandibular canal were measured in cone-beam computed tomographs. The height and width ratios of distances from the mandibular third molar and the mandibular canal to the mandibular inferior border and to the lingual cortical plate were calculated. The vertical and buccolingual distances between the mandibular third molar and the mandibular canal were 0.03 mm, 2.96 mm in the mesioangular, 0.37 mm, 3.38 ,, in the horizontal, -1.50 mm, 1.38 mm in the vertical, -1.10 mm, 4.20 mm in the distoangular group. There were significant differences in vertical (P<0.05), but not in buccolingual (P>0.05). The height and width ratios of distances on the mandibular third molar were 47.1%, 36.1% in the mesioangular, 47.4%, 34.4% in the horizontal, 37.0%, 46.7% in the vertical, 40.9%, 37.4% in the distoangular group. There were significant differences between the mesioangular and the vertical group, and the horizontal and the vertical group in height ratio (P>0.05). The mesioangular group showed the nearest distance between the mandibular third molar and the mandibular canal vertically. The root apex of the mandibular third molar was positioned more buccally in the vertical group than in the mesioangular group.

  3. Anaesthetic Challenges in Molar Pregnancy

    Directory of Open Access Journals (Sweden)

    Ghansham Biyani

    2013-06-01

    Full Text Available Gestational Trophoblastic Disease (GTD is a spectrum of tumours with a wide range of biologic behaviour and potential for metastases, which were often fatal in the past. However, with better understanding of patho-physiology in the last few years, most women can now be cured. A Hydatidiform Mole (or Molar Pregnancy is a benign Gestational Trophoblastic Disease that originates from the placenta. Treatment consists of vacuum evacuation but rarely hysterectomy may be required. Anaesthetic management is often complicated by the associated derangements.

  4. Deseos, aptitudes y conocimientos sobre lactancia materna de gestantes en su tercer trimestre

    Directory of Open Access Journals (Sweden)

    Remigio Rafael Gorrita Pérez

    2012-06-01

    Full Text Available Introducción: la lactancia materna es la única forma natural de alimentar al bebé, y una forma inigualable de facilitar el alimento ideal para su crecimiento y desarrollo. Métodos: se realizó un estudio descriptivo, transversal, para evaluar deseos, aptitudes y conocimientos sobre lactancia materna en el tercer trimestre de 114 gestantes del Policlínico "Mártires del 9 de Abril", de San José de las Lajas. Entre marzo de 2010 y de 2011 se valoraron sus historias de salud individual y familiar, y se aplicó a tal efecto un cuestionario con 22 preguntas. Resultados: la información se incorporó a una base de datos y se utilizó para el análisis el estadígrafo chi cuadrado, que se consideró significativo con p< 0,05. La totalidad de las gestantes deseaban amamantar. Dos terceras partes se consideraron aptas o muy aptas para hacerlo, y que poseían los conocimientos necesarios para lograrlo, pero solo algo más de la quinta parte demostró que los poseía. La mayoría de las futuras madres se encontraban entre los 20 y 35 años, el nivel de escolaridad más frecuentemente alcanzado fue el técnico o preuniversitario (en 60 de ellas, para el 52,6 %, y el 46,5 % de las gestantes mantenían una unión consensuada, el 40,3 % eran casadas, y 15 solteras (13,2 %, aspectos que, indiscutiblemente influyen en los resultados. Conclusiones: además de otros resultados alcanzados, la investigación arrojó que aunque la totalidad de las gestantes en su tercer trimestre deseaban lactar a su futuro bebé y las dos terceras partes se consideraban aptas o muy aptas para hacerlo y con conocimientos suficientes al respecto, solo algo más de la quinta parte demostró efectivamente poseerlos.

  5. Información sobre la lactancia materna de las gestantes en su tercer trimestre

    Directory of Open Access Journals (Sweden)

    Remigio Rafael Gorrita Pérez

    2012-12-01

    Full Text Available Introducción: son universalmente reconocidas las virtudes de la lactancia materna -y es obvio que la mujer está dotada fisiológicamente para el amamantamiento y en un gran número de organizaciones internacionales de salud de diferentes países se han diseñado políticas con el objetivo de promover adecuadamente esta inigualable práctica- pero aún son múltiples los obstáculos que se presentan a su establecimiento exitoso, y los resultados, a largo plazo, no son satisfactorios. Objetivo: evaluar la información que, sobre lactancia materna, poseen las gestantes en el tercer trimestre de su embarazo, que pertenecen al Policlínico "Mártires del 9 de Abril", del municipio San José de las Lajas. Métodos: se realizó un estudio descriptivo, transversal, para conocer el nivel de información sobre lactancia materna, en el tercer trimestre, de 114 gestantes del Policlínico "Mártires del 9 de Abril", de San José de las Lajas. Se valoraron sus historias de salud individual y familiar, y se les aplicó un cuestionario con 22 preguntas que se evaluó cualitativa y cuantitativamente. Resultados: solo la quinta parte de las gestantes poseía la información suficiente sobre lactancia materna, aunque la mayoría había asumido que sí los tenía. Más de la mitad de los 17 aspectos explorados, eran deficientes en más del 50 % de las encuestadas. Los errores más frecuentes fueron: momento de dar agua al niño con lactancia materna exclusiva, cuándo brindar otro alimento, hasta cuándo mantener la lactancia materna, cómo debe ser la dieta de la madre, el alternamiento y el aseo de los pechos, y los impedimentos de la madre para la lactancia. Conclusiones: gran número de gestantes evidencian desconocimientos o actitudes equivocadas de diversa índole en relación con la lactancia materna exclusiva, aunque creen tener dominio del tema. Se deben explorar otros aspectos, además de los conocimientos sobre la lactancia, que, sin duda, atentan

  6. Bilateral inferior petrosal sinus sampling.

    Science.gov (United States)

    Zampetti, Benedetta; Grossrubatscher, Erika; Dalino Ciaramella, Paolo; Boccardi, Edoardo; Loli, Paola

    2016-07-01

    Simultaneous bilateral inferior petrosal sinus sampling (BIPSS) plays a crucial role in the diagnostic work-up of Cushing's syndrome. It is the most accurate procedure in the differential diagnosis of hypercortisolism of pituitary or ectopic origin, as compared with clinical, biochemical and imaging analyses, with a sensitivity and specificity of 88-100% and 67-100%, respectively. In the setting of hypercortisolemia, ACTH levels obtained from venous drainage of the pituitary are expected to be higher than the levels of peripheral blood, thus suggesting pituitary ACTH excess as the cause of hypercortisolism. Direct stimulation of the pituitary corticotroph with corticotrophin-releasing hormone enhances the sensitivity of the procedure. The procedure must be undertaken in the presence of hypercortisolemia, which suppresses both the basal and stimulated secretory activity of normal corticotrophic cells: ACTH measured in the sinus is, therefore, the result of the secretory activity of the tumor tissue. The poor accuracy in lateralization of BIPSS (positive predictive value of 50-70%) makes interpetrosal ACTH gradient alone not sufficient for the localization of the tumor. An accurate exploration of the gland is recommended if a tumor is not found in the predicted area. Despite the fact that BIPSS is an invasive procedure, the occurrence of adverse events is extremely rare, particularly if it is performed by experienced operators in referral centres. © 2016 The authors.

  7. Bilateral inferior petrosal sinus sampling

    Directory of Open Access Journals (Sweden)

    Benedetta Zampetti

    2016-08-01

    Full Text Available Simultaneous bilateral inferior petrosal sinus sampling (BIPSS plays a crucial role in the diagnostic work-up of Cushing’s syndrome. It is the most accurate procedure in the differential diagnosis of hypercortisolism of pituitary or ectopic origin, as compared with clinical, biochemical and imaging analyses, with a sensitivity and specificity of 88–100% and 67–100%, respectively. In the setting of hypercortisolemia, ACTH levels obtained from venous drainage of the pituitary are expected to be higher than the levels of peripheral blood, thus suggesting pituitary ACTH excess as the cause of hypercortisolism. Direct stimulation of the pituitary corticotroph with corticotrophin-releasing hormone enhances the sensitivity of the procedure. The procedure must be undertaken in the presence of hypercortisolemia, which suppresses both the basal and stimulated secretory activity of normal corticotrophic cells: ACTH measured in the sinus is, therefore, the result of the secretory activity of the tumor tissue. The poor accuracy in lateralization of BIPSS (positive predictive value of 50–70% makes interpetrosal ACTH gradient alone not sufficient for the localization of the tumor. An accurate exploration of the gland is recommended if a tumor is not found in the predicted area. Despite the fact that BIPSS is an invasive procedure, the occurrence of adverse events is extremely rare, particularly if it is performed by experienced operators in referral centres.

  8. Variabilidad de las proporciones molares en poblaciones humanas: un abordaje empleando modelos del desarrollo y experimentales / Variability of molar proportions in human populations: insights from developmental models and experiments in mice

    Directory of Open Access Journals (Sweden)

    Lucas A. D´Addona

    2016-03-01

    Full Text Available Los datos sobre la variación dental interpoblacional y sobre los mecanismos que regulan el desarrollo dental aportados por estudios experimentales aún no han sido integrados en el contexto de investigaciones antropobiológicas. En este sentido, el presente trabajo se propone: a evaluar la consistencia entre la variación de las proporciones molares en poblaciones humanas que exhiben gran variación en el tamaño dental con las predicciones derivadas de un modelo de desarrollo dental de cascada inhibitoria, y b analizar el efecto de los factores sistémicos que controlan el crecimiento del organismo sobre las proporciones de los molares inferiores empleando cepas de Mus musculus. Se calcularon las áreas de los molares inferiores mediante los diámetros bucolingual y mesiodistal. La variación interpoblacional en las proporciones M2/M1 y M3/M1 fue concordante con las expectativas derivadas del modelo y la mayoría de los grupos exhibieron una tendencia a la reducción del tamaño en sentido antero-posterior. Asimismo, se observó una asociación significativa y positiva entre el área molar total y las proporciones molares. En los modelos experimentales la alteración del crecimiento por factores sistémicos (subnutrición proteica y reducción de la hormona de crecimiento resultó en la disminución del área molar total y cambios en las proporciones molares. Estos últimos, consistentes con el incremento del efecto inhibitorio en sentido antero-posterior. En conjunto, los resultados sugieren que la modificación de los factores sistémicos que regulan el área molar total podría conducir a cambios en la proporción de activadores-inhibidores y contribuir a la diferenciación interpoblacional en las proporciones molares. Palabras clave: Modelo de cascada inhibitoria; tamaño dental; aproximación experimental y comparativa Data on dental variation among human populations and the mechanisms regulating tooth development elucidated by

  9. The position of the mandibular canal and histologic feature of the inferior alveolar nerve.

    Science.gov (United States)

    Kilic, C; Kamburoğlu, K; Ozen, T; Balcioglu, H A; Kurt, B; Kutoglu, T; Ozan, H

    2010-01-01

    The inferior alveolar nerve is the one of the large branches of the mandibular division of the trigeminal nerve. It is vulnerable during surgical procedures of the mandible. Despite its importance, no anatomical and histological examination has been conducted to provide a detailed cross-sectional morphology of the mandibular canal according to dental status. Therefore, the present study aimed to identify the position of the mandibular canal through direct measurement and to determine the branches of the inferior alveolar nerve through histologic examination. The area between the anterior margin of the third molar and the anterior margin of the second premolar of dentulous, partially dentulous, and edentulous hemimandible specimens (n = 49) from 26 human cadavers was serially sectioned into seven segments, and specific distances were measured using digital calipers. Following this, 5-microm cross-sections were prepared along the mandibular canal and mental foramen, and examined by fluorescence microscopy. The mandibular canal was located at a mean distance of 10.52 mm above the inferior margin of the mandible. The mean maximum diameters of the mandibular canal, inferior alveolar nerve, inferior alveolar artery, and inferior alveolar vein were 2.52, 1.84, 0.42, and 0.58 mm, respectively. This study found that the inferior alveolar nerve often gives rise to several branches at each level (range 0-3). To minimize the risk of injury, knowledge of the small branches of the nerve and of the detailed findings regarding the position of the mandibular canal reported here should be considered when planning mandibular surgery, especially during implant placement.

  10. The adverse effects of inferior innovations

    Directory of Open Access Journals (Sweden)

    Chang Joseph W.

    2017-09-01

    Full Text Available This research advances brand innovation research by examining the adverse effects of inferior innovative extensions on the brand innovability of own parent brands. Brand innovability conceptually consists of brand quality and innovativeness. The results reveal that radical and incremental inferior innovations exert asymmetric adverse effects on brand quality and innovability. For brand quality, inferior radical innovations exert more negative impacts on the quality of pioneer brands than on the quality of follower brands. However, inferior incremental innovations exert identical negative impacts on the quality of both pioneer and follower brands. For brand innovability, both inferior radical and incremental innovations exert more negative impacts on the innovability of pioneer brands than on the innovability of follower brands. In comparison, brand innovability is less susceptible than brand quality to inferior innovation information. The findings suggest that it is more justified to evaluate innovative brands with brand innovability, instead of brand quality, for two reasons. Firstly, brand innovability is more realistic than brand quality because brand innovability is more relevant than brand quality to profits. Secondly, brand innovability is inclusive of brand innovativeness, which ameliorates adverse effects when innovative extensions are inferior. The threat of inferior innovative extensions is less horrible than expectation if the adverse effects on the innovative brands are assessed with brand innovability, instead of brand quality. However, being innovative is like a double-edged sword. On the one hand, it helps generating more profits. On the other hand, it endangers innovative brands to be more susceptible to inferior innovative extensions. Therefore, for marketing implications, pioneer brands are more obliged than follower brands to ensure the success of radical innovations in order to avoid the possible adverse effects of inferior

  11. L'educació com a pràctica de la llibertat, capítols tercer i quart

    OpenAIRE

    Freire, Paulo

    2008-01-01

    El document forma part dels materials docents programats mitjançant l'ajut del Servei de Política Lingüística de la Universitat de València Traducció al català dels capítols tercer i quart del llibre L'educació com a pràctica de la llibertat, de Paulo Freire.

  12. Gestión del conocimiento en el tercer sector: de la competitividad a la eficiencia organizacional

    Directory of Open Access Journals (Sweden)

    Cristian Bedoya-Dorado

    2015-01-01

    Full Text Available El estudio tiene como objetivo presentar una reflexión sobre el aporte de la gestión del conocimiento (GC a la eficiencia en organizaciones del tercer sector. Para ello se llevó a cabo un análisis de contenido de una recopilación de 35 artículos de revistas indexadas JCR y SJR, y de revistas especializadas en GC. El análisis señala que aunque las organizaciones del tercer sector no están llamadas a competir como las organizaciones tradicionales, ni a generar estrategias de captación y fidelización de clientes, sí compiten por la financiación de otras organizaciones y realizan procesos misionales en donde la GC puede contribuir a su eficiencia, de modo que tengan una mejor atención y gestión de sus grupos de interés. Entre los resultados se destaca la importancia de los recursos humanos para lograr la eficiencia a través de la GC en las organizaciones del tercer sector. Este estudio sugiere, para futuras investigaciones, determinar empíricamente el efecto que tienen variables como la gestión de personal, el uso de las TIC, y la innovación en la GC y en la eficiencia de organizaciones del tercer sector, de gran importancia en los países en vía de desarrollo, debido a que atienden necesidades sociales y económicas en las que los Estados son ineficaces, por lo que la GC puede generar aportes para sus objetivos organizacionales.

  13. La importancia e influencia de las artes plásticas como elemento propagandístico durante el Tercer Reich

    OpenAIRE

    Ramos Quevedo, Agustín O.

    2016-01-01

    [ES]Se aborda el papel y la importancia que desempeñaron las artes plásticas como elemento propagandístico durante el Tercer Reich, centrándonos en la escultura, la pintura y los carteles. Asimismo, se analiza la trayectoria de los diferentes autores artísticos y su participación durante el perío que comprende el Tercer Reich.

  14. La libertad de las repúblicas: ¿un tercer concepto de libertad?

    Directory of Open Access Journals (Sweden)

    Skinner, Quentin

    2005-12-01

    Full Text Available In this article the author tries to show that there is a third concept of liberty beyond the two coined by Isaiah Berlin. In order to do that he embarks himself in a historical reconstruction of both hobbesian liberty and liberty before liberalism. He concludes that although liberty as non-interference was a feasible ideal in post-war western societies there are other concepts of liberty equally valuable depending on what account we believe should be given of the normative character of human nature.

    En este artículo se quiere mostrar que hay un tercer concepto de libertad aparte de los dos descritos por Isaiah Berlin. Para llevar a cabo su propósito el autor realiza una reconstrucción histórica del concepto hobbesiano de libertad y del concepto de libertad al que éste se opuso. Se concluye señalando que, aunque el concepto de libertad como no interferencia pudo se un ideal valioso en el mundo occidental de la posguerra, hay otros conceptos de libertad que son igualmente valiosos en relación a la concepción que tengamos del carácter normativo de la naturaleza humana.

  15. Tecnologías de computación y Tercer Mundo

    Directory of Open Access Journals (Sweden)

    Hans Dieter Klee

    2015-01-01

    Full Text Available Este número aborda la comunicación desde las tres interpretaciones más importantes: la tradicionalista, la militar y mercantilista y el arte popular tan inestable, cuestionado y cambiante. Canclini cuestiona la compartamentalización de cultura: popular y de medios y esboza los problemas que plantea la tradicional miopía de no reconocer la universalización : ¿Re-intelección de los medios? apuntes sobre un libro de los Mattelart, ¿"Ética" o "Deontología" de la comunicación social?, El lenguaje del vestido y de la fiesta,Talleres de cultura Popular en Santiago de Chile, El dilema del arte popular en Bolivia,¿Sobrevivirán las artesanías aborígenes argentinas?, Los tejedores de El Tintorero, Tecnologías de computación y Tercer Mundo, La cobertura del terremoto en México, La comunicación como quehacer y como problema, la comunicación planificada sirve al desarrollo

  16. Tendencias clave para el tercer gobierno del MAS, Bolivia 2015-2019

    Directory of Open Access Journals (Sweden)

    Xavier Albó

    2016-03-01

    Esta presentación tiene como trasfondo el Plan Nacional de Desarrollo y pretende resaltar algunos de los logros del presidente Evo Morales y los desafíos que enfrenta en su tercer gobierno (2015-2019. Comienza revisando información demográfica básica, según el Censo de 2012, para luego centrarse en la economía: los hidrocarburos, la minería, la producción agropecuaria y la ecología. El boom de la quinua, la expansión de la frontera agrícola y la suspensión de la construcción de una carretera que atraviese el TIPNIS son algunos de los temas que se discuten. Internacionalmente, hay motivos de optimismo con relación a la demanda marítima de Bolivia, mientras que, a nivel nacional, el MAS aseguró una victoria parlamentaria en el año 2014. Las reformas menos exitosas son las del órgano judicial. La presentación termina revisando los movimientos sociales que permitieron la formación la de Asamblea Constituyente y el asunto de la autonomía municipal, departamental e indígena.

  17. Pulpectomy procedures in primary molar teeth

    OpenAIRE

    Hany Mohamed Aly Ahmed

    2014-01-01

    Premature loss of primary molars can cause a number of undesirable consequences including loss of arch length, insufficient space for erupting premolars and mesial tipping of the permanent molars. Pulpectomy of primary molar teeth is considered as a reasonable treatment approach to ensure either normal shedding or a long-term survival in instances of retention. Despite being a more conservative treatment option than extraction, efficient pulpectomy of bizarre and tortuous root canals encased ...

  18. Tuberculosis pulmonar de campos inferiores

    Directory of Open Access Journals (Sweden)

    Alejandra González

    2010-10-01

    Full Text Available La tuberculosis (TB que compromete sólo los campos pulmonares inferiores (TBCI es poco frecuente en el adulto y en general está asociada a alguna causa de inmunodepresión. El objetivo de nuestro trabajo fue determinar la incidencia de TBCI en nuestra población y comparar sus características respecto de la TB pulmonar de localización habitual. Se estudiaron en forma retrospectiva en el período de 2004 a 2008, 42 pacientes con TBCI que fueron comparados con 84 pacientes con TB pulmonar de localización habitual (grupo control. Se excluyeron pacientes con HIV. La TBCI representó el 6% del total de TB pulmonar. No se encontraron diferencias significativas en cuanto a edad, sexo, presencia de cavidades en la radiografía, días de evolución y nivel de albúmina. La TBCI tuvo significativamente mayor proporción de comorbilidades (p < 0.001, presencia de condensación (p < 0.001 y compromiso unilateral (p < 0.001 en la radiografía de tórax, junto con mayor número de internaciones (p = 0.02. Cabe destacar que sólo16 de los 42 pacientes con TBCI (38% tenían alguna comorbilidad demostrada. La TBCI puede presentarse aun sin comorbilidades asociadas y debe sospecharse en neumonías de evolución tórpida independientemente de su localización.

  19. Mandibular lip bumper for molar torque control.

    Science.gov (United States)

    Celentano, Giuseppe; Longobardi, Annalisa; Cannavale, Rosangela; Perillo, Letizia

    2011-01-01

    Treatment effects of lip bumpers alone include flaring of the mandibular incisors, distalization and uprighting of the mandibular first molars, and buccal expansion of the canines, premolars, and molar. Lip forces are transmitted through this appliance onto the molars. Moreover the lip bumper is able to derotate, expand or constrict, upright and reinforce the anchorage whereas torque control is lacking. Aim of this paper is the presentation of a new type of lip bumper that allows the molar torque control. Copyright © 2011 Società Italiana di Ortodonzia SIDO. Published by Elsevier Srl. All rights reserved.

  20. Permanent molars: Delayed development and eruption

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    Arathi R

    2006-05-01

    Full Text Available Delayed development and eruption of all the permanent molars is a rare phenomenon, which can cause disturbance in the developing occlusion. The eruption of permanent first and second molars is very important for the coordination of facial growth and for providing sufficient occlusal support for undisturbed mastication. In the case described, the first permanent molars were delayed in their development and were seen erupting at the age of nine and a half years. Severe disparity between the left and the right side of the dentition with respect to the rate of development of molars were also present.

  1. Assessment of association between molar incisor hypomineralization and hypomineralized second primary molar

    National Research Council Canada - National Science Library

    Rakesh Mittal; Shweta Chandak; Manisha Chandwani; Prabhat Singh; Jitesh Pimpale

    2016-01-01

      Background: The term molar incisor hypomineralization (MIH) has been described as a clinical entity of systemic origin affecting the enamel of one or all first permanent molars and also the incisors...

  2. [Hyperthyroidism induced by molar pregnancy].

    Science.gov (United States)

    Laurent, V; Besson, L; Doussin, J F; Rondelet, B; Banssillon, V

    1993-01-01

    A case is reported of a Senegalese patient admitted for hydatiform mole. The serum human chorionic gonadotrophin concentration (hCG) was 900,000 UI.l-1. The patient was recognized to be clinically hyperthyroid with raised T4 and T3 values, but a very low TSH concentration. After two days of beta adrenergic blockade and carbimazole, a suction curettage was performed under general anaesthesia. Propranolol was again administered 6 hours after the surgery. Thyroid function returned to normal level two weeks after removal of the mole, suggesting that hCG was responsible for the thyrotoxicosis. Serum hCG concentrations closely paralleled those of free thyroxine, but the correlation was difficult to assess because of carbimazole. Clinical thyrotoxicosis is rare in molar pregnancy. The diagnosis being made in semi-urgent conditions, this raises the question of how to obtain rapid stabilization of the disease before surgery.

  3. Biomechanical analysis of asymmetric mesio-distal molar positions loaded by a symmetric cervical headgear.

    Science.gov (United States)

    Kizilova, Natalya; Geramy, Allahyar; Romashov, Yurij

    2016-01-01

    The plane 2D model and 3d finite element model of the headgear attached to two molars with different mesio-distal location are studied to show the asymmetric mechanical effects produced by symmetrically loaded headgear. In daily dental practice the asymmetrical location of molars is usually ignored. Six 3D finite element models of a symmetric cervical headgear were designed in SolidWorks 2011. The models showed symmetric molar position (model 1), 0.5 to 2 mm of anterior-posterior molar difference (models 2-5) and a significant asymmetry with 10 mm of difference in the locations (model 6). The head gear was loaded with 3N of force applied at the cervical headgear. The forces and moments produced on terminal molars are assessed. It is shown the difference between the forces acting at the longer and shorter outer arms of the headgear increases with increase in the distance. The significant numeric difference in the forces has been found: from 0.0082 N (model 1) to 0.0324 N (model 5) and 0.146 N (model 6). These small forces may produce unplanned distal tipping and rotation of the molars around their vertical axes. The most important funding was found as a clockwise yaw moment in the system when is viewed superio-inferiorly. The yaw moment has been computed between -0.646 Nmm (model 1) and -1.945 N mm (model 5). Therefore even small asymmetry in location of molars loaded by a symmetric cervical headgear will produce undesirable movement and rotation of the teeth that must be taken into account before applying the treatment.

  4. Traumatismos de veia cava inferior

    Directory of Open Access Journals (Sweden)

    Cleinaldo de Almeida Costa

    Full Text Available OBJETIVO: Avaliar a incidência, o perfil clínico e as estratégias operatórias dos ferimentos de Veia Cava Inferior (VCI. MÉTODOS: Foram analisados retrospectivamente os prontuários de 76 doentes com ferimento de VCI atendidos nos dois prontossocorros de Manaus, no período de janeiro de 1997 a julho de 2002. Mecanismo de lesão, mortalidade, estado hemodinâmico, índice de trauma abdominal penetrante (PATI, achados intra-operatórios e conduta cirúrgica foram estudados. RESULTADOS: Quarenta e nove (65% doentes sofreram lesão por arma branca, 26 (34% por arma de fogo e um por traumatismo abdominal fechado. Quarenta e um (54% doentes sobreviveram. Quase todos chegaram acordados, entretanto 40% estavam hipotensos (pressão arterial sistólica < 70mmHg. O índice de trauma abdominal penetrante (PATI médio foi maior que 40. À laparotomia, todos demonstraram sangramento retroperitoneal ativo ou hematoma retroperitoneal em expansão. Vinte e um pacientes possuíam lesão de VCI retro-hepática, enquanto nos outros 55 a lesão era infra-hepática. O reparo operatório predominante foi a venorrafia lateral em 65 doentes. Houve necessidade de tóraco-freno-laparotomia em quatro doentes do total de oito doentes que foram à toracotomia direita por lesão retro-hepática. Foram realizados shunts átrio-cavais em seis doentes, dos quais três sobreviveram. CONCLUSÕES: O ferimento de VCI é uma lesão de alta letalidade e possui uma relação intrínseca com a violência urbana. A sobrevivência depende de uma imediata e vigorosa reposição de volume, um manejo operatório adequado e todo esforço em evitar-se hipotermia.

  5. Reingresos hospitalarios en un servicio de Medicina Interna de un hospital de tercer nivel

    Directory of Open Access Journals (Sweden)

    Dolores Estrada Reventós

    2014-12-01

    Full Text Available Objetivo principal: Identificar la tipología de pacientes que reingresan y los factores que intervienen en el reingreso hospitalario no planificado de un Servicio de Medicina Interna de tercer nivel. Metodología: Estudio observacional descriptivo con una muestra de 100 pacientes que reingresaron de forma consecutiva y no programada, antes de haber transcurrido 180 días. De cada uno de ellos se estudió variables demográficas, socio-familiares, salud-enfermedad, preocupación al alta anterior, continuidad asistencial y seguimiento terapéutico. Resultados principales: Los reingresos se produjeron en un 65% antes de 1 mes. Un 50% tenía más de 80 años y un 60% eran mujeres. El 40% convivía con personas de igual edad, siendo estas su principal cuidador. El principal motivo de ingreso, de reingreso y de problema en domicilio fue la disnea. El diagnóstico mayoritario fue la infección respiratoria, con una media de comorbilidad de 4 y una media de cuidados al alta anterior de 3. Las personas se sintieron bien informadas al alta. Un 42% recibió respuesta de su centro de atención primaria antes de las 48 horas y se sintió satisfecho por la atención que recibió. Un 18% de los pacientes no fueron cumplidores. Conclusión principal: los reingresos son más frecuentes en los primeros 30 días. Los mayores de 71 años con problemas respiratorios son los que presentaron mayor riesgo de reingreso.

  6. Third molar agenesis and craniofacial morphology.

    Science.gov (United States)

    Sánchez, María José; Vicente, Ascensión; Bravo, Luis Alberto

    2009-05-01

    To test the null hypothesis that agenesis of wisdom teeth is not related with any particular craniofacial morphology. Ninety-seven patients (aged 13-19 years) were selected and divided into three groups: (1) bilateral agenesis of maxillary third molars, (2) bilateral agenesis of mandibular third molars, and (3) control group without agenesis. Presence or absence of third molars was determined using ortopantomographs. Cephalometric analysis was carried out from lateral teleradiographs, which included linear, angular, and proportional measurements. When data obtained were distributed normally it was analyzed by means of single-factor variance analysis and the Scheffé test (P classification in 58.8% of cases. The hypothesis is rejected. Agenesis of the maxillary third molars was related to a reduced mandibular plane angle. Patients with agenesis of the mandibular third molars showed a diminished lower third and a mandibular morphology characteristic of the brachyfacial pattern.

  7. Bilateral maxillary fourth and fifth molars: An unusual radiographic appearance

    Directory of Open Access Journals (Sweden)

    Mukesh Khemchand Asrani

    2016-01-01

    Full Text Available Distomolars are supernumerary teeth present distal to third molars. Although many cases of bilateral fourth molars are reported, very few cases having bilateral fifth molars are described in literature. Here, we present a case having bilateral impacted maxillary fourth and fifth molars with the fifth molar on the left side having an unusually small appearance.

  8. Superior versus inferior Ahmed glaucoma valve implantation.

    Science.gov (United States)

    Pakravan, Mohammad; Yazdani, Shahin; Shahabi, Camelia; Yaseri, Mehdi

    2009-02-01

    To compare the efficacy and safety of Ahmed glaucoma valve (AGV) (New World Medical Inc., Rancho Cucamonga, CA) implantation in the superior versus inferior quadrants. Prospective parallel cohort study. A total of 106 eyes of 106 patients with refractory glaucoma. Consecutive patients with refractory glaucoma underwent AGV implantation in the superior or inferior quadrants. Main outcome measures included intraocular pressure (IOP) and rate of complications. Other outcome measures included best corrected visual acuity (BCVA), number of glaucoma medications, and success rate (defined as at least 30% IOP reduction and 5AGV implantation in the superior and inferior quadrants, respectively. Baseline characteristics were comparable in the study groups, except for preoperative IOP, which was higher in the superior group (P = 0.01). Patients were followed for a mean period of 10.6+/-8.49 months and 10.58+/-6.75 months in the superior and inferior groups, respectively (P = 0.477). BCVA was comparable between the groups at all postoperative visits (P>0.122). After 1 year, statistically significant but comparable IOP reduction from baseline (PAGV implants have similar intermediate efficacy in terms of IOP reduction, decrease in number of glaucoma medications, and preservation of vision. However, the inferior quadrants entail significantly more complications. It may be prudent to avoid AGV implantation in the inferior quadrants if the superior quadrants have no contraindications to surgery. Proprietary or commercial disclosure may be found after the references.

  9. The influence of premature loss of temporary upper molars on permanent molars.

    Science.gov (United States)

    Cernei, E R; Maxim, Dana Cristiana; Zetu, Irina Nicoleta

    2015-01-01

    Premature loss of primary molars due to dental caries and their complications has been associated with space loss and eruptive difficulties, especially when the loss occurs early. The aim of our study was to determine the impact of premature loss of temporary upper molars upon the longitudinal axis of the first and second upper permanent molar. The study group included 64 patients 6-9 years old with premature loss of primary molars and a control group of 48 patients with intact temporary teeth. It was evaluated the angle between longitudinal axis of first and second upper permanent molars and occlusal plane. The sofware used is Easy Dent 4 Viewer®.The data were analyzed by using the Statistical Package for the Social Sciences (version 20.0; SPSS, Chicago, III). It was observed that premature loss of upper second deciduous molars modifies greater the vertical axis of the permanent molars than the premature loss of first upper primary molar. First upper primary molar loss cause an acceleration eruption of first premolar, which will produce a distal inclintion of the both permanent molars. The use of space maintainers after premature loss of the second upper temporary molar is a last solution in preventing tridimensional lesions in the dental arch and occlusion.

  10. [Correlation between the lower first permanent molar axis and the premature loss of temporary molars].

    Science.gov (United States)

    Petcu, Ana; Maxim, A; Haba, Danisia

    2009-01-01

    The aim of our study was to determine the impact of premature loss of temporary molars upon the longitudinal axis of the first permanent molar. The study sample was formed by 94 orthopanthomografies of child patients with premature loss of lower temporary molars (first or second) after clinical eruption of the first permanent molar. All panoramic radiographs have been realized with the same panoramic unit with 1.4% magnification coefficient and were analyzed using a standardized technique of tracing the images of teeth and bone on matte acetate paper. It was evaluated the angle between longitudinal axis of first permanent lower molar and occlusal plane. It was observed that premature loss of lower second deciduous molar modifies greater the vertical axis of first permanent molar (between 61 degrees and 79 degrees) then premature loss of first lower primary molar. This is perhaps because the loss of space in the case of premature exfoliation of first primary molar is due more to distal drift of canine then mesial drift of molars. The drift to mesial of first permanent molar is more accentuated proportional with the age at which appeared premature loss and so it is loss of leeway space.

  11. Maxillary second molar impaction in the adjacent ectopic third molar: Report of five rare cases

    Science.gov (United States)

    Souki, Bernardo Q.; Cheib, Paula L.; de Brito, Gabriela M.; Pinto, Larissa S. M. C.

    2015-01-01

    Maxillary second molar impaction in the adjacent ectopic third molar is a rare condition that practitioners might face in the field of pediatric dentistry and orthodontics. The early diagnosis and extraction of the adjacent ectopic third molar have been advocated, and prior research has reported a high rate of spontaneous eruption following third molar removal. However, some challenges in the daily practice are that the early diagnosis of this type of tooth impaction is difficult with conventional radiographic examination, and sometimes the early surgical removal of the maxillary third molar must be postponed because of the risks of damaging the second molar. The objective of this study is to report a case series of five young patients with maxillary second molar impaction and to discuss the difficulty of early diagnosis with the conventional radiographic examination, and unpredictability of self-correction. PMID:26321848

  12. Maxillary second molar impaction in the adjacent ectopic third molar: Report of five rare cases

    Directory of Open Access Journals (Sweden)

    Bernardo Q Souki

    2015-01-01

    Full Text Available Maxillary second molar impaction in the adjacent ectopic third molar is a rare condition that practitioners might face in the field of pediatric dentistry and orthodontics. The early diagnosis and extraction of the adjacent ectopic third molar have been advocated, and prior research has reported a high rate of spontaneous eruption following third molar removal. However, some challenges in the daily practice are that the early diagnosis of this type of tooth impaction is difficult with conventional radiographic examination, and sometimes the early surgical removal of the maxillary third molar must be postponed because of the risks of damaging the second molar. The objective of this study is to report a case series of five young patients with maxillary second molar impaction and to discuss the difficulty of early diagnosis with the conventional radiographic examination, and unpredictability of self-correction.

  13. Efficacy and complications associated with a modified inferior alveolar nerve block technique. A randomized, triple-blind clinical trial.

    Science.gov (United States)

    Montserrat-Bosch, Marta; Figueiredo, Rui; Nogueira-Magalhães, Pedro; Arnabat-Dominguez, Josep; Valmaseda-Castellón, Eduard; Gay-Escoda, Cosme

    2014-07-01

    To compare the efficacy and complication rates of two different techniques for inferior alveolar nerve blocks (IANB). A randomized, triple-blind clinical trial comprising 109 patients who required lower third molar removal was performed. In the control group, all patients received an IANB using the conventional Halsted technique, whereas in the experimental group, a modified technique using a more inferior injection point was performed. A total of 100 patients were randomized. The modified technique group showed a significantly higher onset time in the lower lip and chin area, and was frequently associated to a lingual electric discharge sensation. Three failures were recorded, 2 of them in the experimental group. No relevant local or systemic complications were registered. Both IANB techniques used in this trial are suitable for lower third molar removal. However, performing an inferior alveolar nerve block in a more inferior position (modified technique) extends the onset time, does not seem to reduce the risk of intravascular injections and might increase the risk of lingual nerve injuries.

  14. How will mandibular third molar surgery affect mandibular second molar periodontal parameters?

    Science.gov (United States)

    Tabrizi, Reza; Arabion, Hamidreza; Gholami, Mehdi

    2013-07-01

    Several conflicting findings have been published in the previous literature regarding the effects of impacted third molar surgery on the periodontal parameters of the adjacent second molar; some authors have shown improvement of periodontal health distal to the adjacent second molar, whilst others have demonstrated loss of attachment level (AL) and reduction of alveolar bone height. The purpose of this study was to evaluate the changes in periodontal health parameters distal to the adjacent second molar following extraction of an impacted third molar. Out of 50 patients participated in the study, 42 patients completed the study. The mean age of the sample was 20.9 (range, 18-25) years. All teeth were mesioangular impacted mandibular third molars categorized at C1 class based on the Pell and Gregory classification. All surgeries were performed by one surgeon and the same surgeon recorded the pre-operative and post-operative measurements of probing depth (PD) and AL on the distobuccal aspect of the second molars. Data analysis were carried out with the SPSS software (version 19), using the paired-samples t-test and one sample t-test. Surgical extraction of impacted mandibular third molar resulted in a significant increase of PD on the distobuccal aspect of the second molars, whereas AL was decreased significantly after surgery (P molar after extraction of impacted third molar, our study showed a significant increase in PD at the distal aspect of the second molar. Further follow-up on clinical and radiological parameters are required for more profound understanding of the long-term effects of third molar extraction on the periodontal parameters of the adjacent second molar.

  15. Treating Intraradicular Pockets of molars

    Directory of Open Access Journals (Sweden)

    H. Lotfizade

    1987-10-01

    Full Text Available It appears that until bone graft has not achieved 100% success, intraradicular diseases remain controversial and therefore, different treatment plans are suggested for them. Treating intraradicular diseases depend on many factors: maxillary molars are more prone to bone loss and have worse prognosis. To assess prognosis more carefully these factors should be considered: 1 bone loss: its apical depth, local or generalized 2 bone condition: buccal, lingual, mesial and distal aspects 3 tooth mobility: grades 2 and 3 have not good prognosis. Crown root ratio is also important. 4 the angle of divergence of roots: the more the roots are divergent, the better the prognosis would be. 5adjacent teeth health 6tooth position in jaws 7 age and general health of the patients 8 oral hygiene In general, teeth with 2 roots can be treated more effectively than 3 root ones. Maxillary first premolars are exceptions that do not respond to the treatments positively. We should look forward to the future investigations and findings.

  16. Sextant of Sapphires for Molar Distalization.

    Science.gov (United States)

    Ponnada, Swaroopa Rani; Palla, Yudistar Venkata; Ganugapanta, Vivek Reddy

    2016-08-01

    Space analysis quantifies the amount of crowding within the arches estimating the severity of space discrepancy. The space gaining procedures include extraction and non-extraction procedures like expansion, proximal stripping and molar distalization. To identify features seen in molar distalization cases. The sample size comprised 20 patients in whom molar distalization was decided as the treatment plan. The study models and lateral cephalograms of all the patients were taken. Occlusograms were obtained. Model analysis and cephalometric analysis were performed. Descriptive statistical analysis like mean, standard deviation, standard error and mode were done. The parameters in Question gave following results. The Bolton analysis showed anterior mandibular excess with mean value of 1.56mm±1.07. The first order discrepancy between maxillary central and lateral incisors was 5±1.95. The premolar rotation showed mean value of 16.58±5.12. The molar rotation showed the value of 7.66±2.26. The nasolabial angle showed the mean of 101.25±8.7 IMPA of 101.4±5.74. The six features studied in molar distalization cases [First order discrepancy between upper central and lateral incisors; Rotation of premolars and molars; Bolton's discrepancy in anterior dentition; Average to horizontal growth pattern; Proclined lower incisors and Obtuse nasolabial angle] can be taken as patterns seen in molar distalization cases and considered as a valid treatment plan.

  17. Study of kissing molars in Turkish population sample | Yanik ...

    African Journals Online (AJOL)

    Study of kissing molars in Turkish population sample. ... refers to contacting occlusal surfaces of the impacted mandibular second and third molars. ... was to report the incidence of kissing molars (KMs), classification, incorporated pathologies, ...

  18. MÁS ALLÁ DEL TERCER MUNDO: GLOBALIDAD IMPERIAL, COLONIALIDAD GLOBAL Y MOVIMIENTOS SOCIALES ANTI-GLOBALIZACIÓN

    Directory of Open Access Journals (Sweden)

    Arturo Escobar

    2004-01-01

    Full Text Available La creciente comprensión de que existen problemas modernos para los cuales no hay soluciones modernas apunta ha- cia la necesidad de moverse más allá del paradigma de la modernidad y, por tanto, más allá del Tercer Mundo. La ima- ginación del después del Tercer Mundo ocurre con dos proce- sos centrales como telón de fondo: Primero, el surgimiento de una nueva forma de globalidad imperial, impulsada por los Estados Unidos, un orden económico-militar-ideológico que subordina regiones, pueblos y economías en todo el mundo; la globalidad imperial tiene su lado oculto en lo que puede ser denominado, siguiendo un grupo de investigadores latinoame- ricanos, colonialidad global, esto es, el aumento de la marginalización y supresión del conocimiento de los grupos subaltenos. El segundo proceso social es la emergencia de redes de movimientos sociales auto-organizadas que operan bajo una nueva lógica, fomentando formas de globalización contra- hegemónicas. Es argumentado que en tanto se articulan con las políticas de la diferencia, particularmente a través de estra- tegias políticas basadas-en-lugar aunque trasnacionalizadas, es- tos movimientos representan la mejor esperanza para re-elaborar la globalidad imperial y la colonialidad global en formas que hagan de la imaginación del después del Tercer Mundo, y del más allá de la modernidad, un proyecto viable.

  19. Molar pregnancy and thyroid storm - literature review

    Directory of Open Access Journals (Sweden)

    Filipescu G. A.

    2017-08-01

    Full Text Available Molar pregnancies results from a tainted fertilization process. Trophoblastic thyroidian hyper function is an unusual complication of a molar pregnancy. The degree of thyroid stimulation and the severity of clinical hyperthyroidism is directly proportional to HCG concentration. Human chorionic gonadotrophin is almost identical with TSH, luteinizing hormone (LH and follicle-stimulating hormone, this analogy in the structure will cause cross-reactivity with their receptors. Hyperthyroid status can vary from asymptomatic hyper function to thyroid storm. Dilation and curettage represents the treatment for hyperthyroidism in molar pregnancy. Awareness of this condition is important for diagnosis and treatment.

  20. Unilateral Molar Distalization: A Nonextraction Therapy

    Directory of Open Access Journals (Sweden)

    M. Bhanu Prasad

    2012-01-01

    Full Text Available In the recent years, nonextraction treatment approaches and noncompliance therapies have become more popular in the correction of space discrepancies. One of the conventional approaches for space gaining in the arches without patient compliance is done by using certain extra oral appliances or intraoral appliance. The greatest advantage of certain appliances like fixed functional and molar distalization appliances is that they minimize the dependence on patient cooperation. Molar distalization appliances like pendulum appliance which distalizes the molar rapidly without the need of head gear can be used in patients as a unilateral space gaining procedure due to buccal segment crowding.

  1. Mini-implant-supported Molar Distalization

    Directory of Open Access Journals (Sweden)

    Amit Goyal

    2012-01-01

    Full Text Available Temporary anchorage devices popularly called mini-implants or miniscrews are the latest addition to an orthodontist′s armamentarium. The following case report describes the treatment of a 16-year-old girl with a pleasant profile, moderate crowding and Angle′s Class II molar relationship. Maxillary molar distalization was planned and mini-implants were used to preserve the anterior anchorage. After 13 months of treatment, Class I molar and canine relation was achieved bilaterally and there was no anterior proclination. Thus, mini-implants provide a viable option to the clinician to carry out difficult tooth movements without any side effects.

  2. Treatment of ectopic first permanent molar teeth.

    LENUS (Irish Health Repository)

    Hennessy, Joe

    2012-11-01

    Ectopic eruption of the first permanent molar is a relatively common occurence in the developing dentition. A range of treatment options are available to the clinician provided that diagnosis is made early. Non-treatment can result in premature exfoliation of the second primary molar, space loss and impaction of the second premolar. This paper will describe the management of ectopic first permanent molars, using clinical examples to illustrate the available treatment options. CLINICAL RELEVANCE: This paper is relevant to every general dental practitioner who treats patients in mixed dentition.

  3. Radiographic methods used before removal of mandibular third molars among randomly selected general dental clinics.

    Science.gov (United States)

    Matzen, Louise H; Petersen, Lars B; Wenzel, Ann

    2016-01-01

    To assess radiographic methods and diagnostically sufficient images used before removal of mandibular third molars among randomly selected general dental clinics. Furthermore, to assess factors predisposing for an additional radiographic examination. 2 observers visited 18 randomly selected clinics in Denmark and studied patient files, including radiographs of patients who had their mandibular third molar(s) removed. The radiographic unit and type of receptor were registered. A diagnostically sufficient image was defined as the whole tooth and mandibular canal were displayed in the radiograph (yes/no). Overprojection between the tooth and mandibular canal (yes/no) and patient-reported inferior alveolar nerve sensory disturbances (yes/no) were recorded. Regression analyses tested if overprojection between the third molar and the mandibular canal and an insufficient intraoral image predisposed for additional radiographic examination(s). 1500 mandibular third molars had been removed; 1090 had intraoral, 468 had panoramic and 67 had CBCT examination. 1000 teeth were removed after an intraoral examination alone, 433 after panoramic examination and 67 after CBCT examination. 90 teeth had an additional examination after intraoral. Overprojection between the tooth and mandibular canal was a significant factor (p < 0.001, odds ratio = 3.56) for an additional examination. 63.7% of the intraoral images were sufficient and 36.3% were insufficient, with no significant difference between images performed with phosphor plates and solid-state sensors (p = 0.6). An insufficient image predisposed for an additional examination (p = 0.008, odds ratio = 1.8) but was only performed in 11% of the cases. Most mandibular third molars were removed based on an intraoral examination although 36.3% were insufficient.

  4. Correlating the clinical assessment of impacted mandibular third molars with panoramic radiograph and intraoral periapical radiograph

    Science.gov (United States)

    Priya, P. Vani; Nasyam, Fazil A.; Ramprasad, M.; Penumatsa, Narendra V.; Akifuddin, Syed; Sandeep

    2016-01-01

    Aims And Objectives: This study was conducted to compare the clinical assessment of impacted third molars of mandible with panaromic radiograph (OPG) and intraoral periapical radiograph (IOPA) and to assess the efficacy of IOPA and. Moreover, we corroborated the OPG and IOPA findings of impacted mandiblar third molar root apex to inferior alveolar canal. Materials and Methods: A total of 200 patients with pericoronitis were examined who were indicated for surgical extraction, among which 50 patients were selected for the study. All the patients underwent a radiographic survey with a digital OPG and IOPA of impacted mandibular third molars, along with clinical survey for anatomic relationship, type of impaction, space available, position in relation to second molar, number of roots, root curvature, and proximity of nerve canal. The data was subjected to statistical analysis. The Statistical Package for Social Sciences version 4.0.1 software was used for analyzing the collected data. Results: The study revealed that IOPA was more accurate in determining a majority of the factors affecting the third molar surgery, including relationship of the external oblique ridge (IOPA vs OPG = 96%:90%), anteroposterior relation with ramus (IOPA vs OPG = 70%:66%), vertical depth of impaction (IOPA vs OPG = 72%:68%), number of roots (P = 0.013), morphology of roots (IOPA vs OPG = 96%:90%); however, OPG was found to be accurate in evaluating the type of impaction (IOPA vs OPG = 88%:94%), canal relation, along with root of impacted molar (IOPA vs OPG = 74%:86%). Conclusion: To conclude, although IOPA has a marginal angle over OPG in assessing various parameters, only the number of roots have a greater accuracy (P < 0.0013) in IOPA than with OPG. However, the OPG is the better choice to be considered when the patient is associated with trismus. PMID:28217540

  5. Etiología del retardo mental en la infancia: experiencia en dos centros de tercer nivel

    OpenAIRE

    Lisseth Cabarcas; Eugenia Espinosa; Harvy Velasco

    2013-01-01

    Introducción. De 1 a 3 % de la población mundial tiene retardo mental. Este trastorno constituye un motivo de consulta y diagnóstico frecuente en los servicios de Neuropediatría. Objetivo. Determinar la etiología en pacientes con retraso mental que asisten a la consulta de Neuropediatría en dos centros hospitalarios de tercer nivel. Materiales y métodos. Se incluyeron pacientes pediátricos con diagnóstico de retardo mental, para cuya evaluación se empleó el algoritmo diagnóstico propu...

  6. Memoria de la red de coordinación del tercer curso del grado en Ingeniería Multimedia

    OpenAIRE

    Iñesta Quereda, José Manuel; Luján Mora, Sergio; Sanchez-Romero, Jose-Luis; Meliá, Santiago; Puchol García, Juan Antonio; Vicent, Jose F.; Montoyo-Bojo, Javier; Torres, Fernando; Aznar Gregori, Fidel; Vicedo, Jose-Luis

    2015-01-01

    Durante el presente curso se ha constatado el asentamiento del tercer curso del grado en Ingeniería Multimedia, lo que se deriva de los informes de seguimiento de las asignaturas del curso que, en su gran mayoría, no han destacado problema alguno (con alguna excepción de la que se informa). Por otro lado, se ha llevado a cabo una iniciativa para contrastar si las dependencias entre las asignaturas de tercero con respecto a sus precedentes en el plan de estudios responden en realidad a los pla...

  7. Efficiency of molar distalization with the XBow appliance related to second molar eruption stage.

    Science.gov (United States)

    Flores-Mir, Carlos; McGrath, L M; Heo, G; Major, P W

    2013-12-01

    To quantitatively evaluate on lateral cephalograms horizontal, vertical, and angular changes in the position of the maxillary first molar based on the presence and absence of erupted maxillary second molars when it is distalized with the XBow appliance. In this retrospective study, a total of 102 consecutively treated cases were assessed. Lateral cephalograms were obtained at the start and after completion of active treatment with the XBow appliance. In one group of patients, distal movement of the maxillary first molars was performed before the eruption of maxillary second molars; in the other group of patients, both first and second maxillary molars were simultaneously moved distally. All cephalograms were superimposed on palatal plane using the method of best-fit. In order to compare the mean horizontal, vertical, and angular changes in molar position between the treatment groups and gender, a multivariate analysis of covariance (MANCOVA) was performed with the pre-treatment class II severity used as a covariate. Regression analysis was also performed to further explore any possible relationships between the predictor variables and the quantity and quality of distalization. A MANCOVA revealed that the eruption stage of the maxillary second molar did not have a significant effect on the change in position of the maxillary first molar after treatment with a XBow appliance. When distalizing maxillary first molars with a XBow appliance, there is no difference in the amount of distalization in patients with erupted and unerupted maxillary second molars.

  8. Effect of Preoperative Pain on Inferior Alveolar Nerve Block

    Science.gov (United States)

    Aggarwal, Vivek; Singla, Mamta; Subbiya, Arunajatesan; Vivekanandhan, Paramasivam; Sharma, Vikram; Sharma, Ritu; Prakash, Venkatachalam; Geethapriya, Nagarajan

    2015-01-01

    The present study tested the hypothesis that the amount and severity of preoperative pain will affect the anesthetic efficacy of inferior alveolar nerve block (IANB) in patients with symptomatic irreversible pulpitis. One-hundred seventy-seven adult volunteer subjects, actively experiencing pain in a mandibular molar, participated in this prospective double-blind study carried out at 2 different centers. The patients were classified into 3 groups on the basis of severity of preoperative pain: mild, 1–54 mm on the Heft-Parker visual analog scale (HP VAS); moderate, 55–114 mm; and severe, greater than 114 mm. After IANB with 1.8 mL of 2% lidocaine, endodontic access preparation was initiated. Pain during treatment was recorded using the HP VAS. The primary outcome measure was the ability to undertake pulp access and canal instrumentation with no or mild pain. The success rates were statistically analyzed by multiple logistic regression test. There was a significant difference between the mild and severe preoperative pain group (P = .03). There was a positive correlation between the values of preoperative and intraoperative pain (r = .2 and .4 at 2 centers). The amount of preoperative pain can affect the anesthetic success rates of IANB in patients with symptomatic irreversible pulpitis. PMID:26650491

  9. Delayed removal of a maxillary third molar from the infratemporal fossa.

    Science.gov (United States)

    Gómez-Oliveira, Guillermo; Arribas-García, Ignacio; Alvarez-Flores, Modesto; Gregoire-Ferriol, Johanna; Martínez-Gimeno, Carlos

    2010-05-01

    Removal of an impacted superior third molar is usually a simple and uncomplicated procedure for an Oral and Maxillofacial Surgeon. Nevertheless, complications are possible and include infection, facial swallowing, trismus, wound dehiscence, root fracture or even orosinusal fistula. Iatrogenic displacement into the infratemporal fossa is frequently mentioned but rarely reported. This anatomical fossa includes several important structures such as the internal maxillary artery, the venous pterygoid plexus, the sphenopalatine nerve, the coronoid process of the mandible and the pterygoid muscles. Recommended treatment includes immediate surgical removal if possible or initial observation and secondary removal, as necessary, because of infection, limited mandibular movement, inability to extract the tooth, or the patient's psychological unease. Sometimes, the displaced tooth may spontaneously migrate inferiorly and becomes accessible intraorally. This report describes the location and secondary surgical removal of a left maxillary third molar displaced into the infratemporal fossa, two weeks after first attempt at extraction.

  10. "Abscess" as a perioperative risk factor for paresthesia after third molar extraction under general anesthesia.

    Science.gov (United States)

    Costantinides, Fulvia; Biasotto, Matteo; Gregori, Dario; Maglione, Michele; Di Lenarda, Roberto

    2009-02-01

    To evaluate postextractive neurological complications after third molar extraction under general anesthesia and to identify correlations between the surgical procedure, the third molar-related pathology, and neurological involvement. The clinical records of 183 patients were analyzed for a total of 408 third molars extracted at the Dental Clinic of Trieste (Italy). Individual effects of clinical data on the presence of paresthesia were evaluated by a logistic regression model. Neurological involvement was observed in 13 patients (6.1%). No permanent inferior alveolar nerve damage was found (0%) and only 1 patient presented a permanent lesion of the ipsilateral lingual nerve (0.3%). Pell and Gregory classification and surgical difficulty were not associated with the incidence or gravity of neurological lesions (P = NS). Among the pathologies associated with third molars, only the variable "abscess" presented a significant correlation with paresthesia (OR 6.86; 95% CI 1.21-38.8; P = .029). The percentage of nerve injuries agrees with the literature data, inclusion class, and surgical technique seem not to influence paresthesia risk. Further studies are necessary to evaluate the role of infectious pathologies as a cofactor in the development of neurological lesions after oral surgery.

  11. Removal of a severely impacted mandibular third molar minimizing the risks of compromised periodontium, nerve injury, and mandibular fracture.

    Science.gov (United States)

    Tsamis, Christos; Rodiou, Stylianos; Stratos, Athanasios; Gkantidis, Nikolaos

    2018-01-01

    A technique is presented for severely impacted and dentigerous-cyst-related mandibular third molar removal, avoiding any associated risks. A healthy patient complained about unpleasant smell and taste in the mouth and unilateral extraoral palpation of a protuberance, at the right corner of the mandible. Restricted field CBCT showed a severely impacted third molar, which penetrated the inferior cortical bone of the mandibular corner and was associated with a dentigerous cyst that had resorbed considerable bone in the region. Surgical exposure of the impacted tooth and cyst marsupialization procedures under local anesthesia were combined with orthodontic extrusion of the impacted tooth to facilitate third molar removal. Treatment resulted in successful bone formation and safe tooth removal. The symptoms gradually improved after the first surgery and were eliminated by 14 months later, when the third molar was removed. Follow-up examination 1 year after removal showed favorable periodontal conditions. Although it is not normally the first treatment of choice, orthodontically assisted impacted tooth removal is an alternative that can minimize the risk of compromised periodontium or injury to the adjacent tooth and the inferior alveolar nerve, as well as the risk of mandibular fracture, in complicated cases.

  12. A Molar Pregnancy within the Fallopian Tube

    Directory of Open Access Journals (Sweden)

    Laura Allen

    2016-01-01

    Full Text Available Background. Discussion of the incidence of molar pregnancy and ectopic pregnancy. Role of salpingostomy and special considerations for postoperative care. Case. The patient is a 29-year-old G7P4 who presented with vaginal bleeding in the first trimester and was initially thought to have a spontaneous abortion. Ultrasound was performed due to ongoing symptoms and an adnexal mass was noted. She underwent uncomplicated salpingostomy and was later found to have a partial molar ectopic pregnancy. Conclusion. This case illustrates the rare occurrence of a molar ectopic pregnancy. There was no indication of molar pregnancy preoperatively and this case highlights the importance of submitting and reviewing pathological specimens.

  13. IMPLICATIONS OF PREMATURE LOSS OF PRIMARY MOLARS

    Directory of Open Access Journals (Sweden)

    Ana PETCU

    2016-06-01

    Full Text Available The pathology of premature loss of temporary molars is a complex issue with profound impact on dental and facial harmony, urging clinician`s interest for an optimal therapeutic approach. Identification of the predisposing factors, in full agreement with the anatomical particularities of the temporary teeth, corroborated with the incidence of premature loss of molars is a main condition for an optimal therapeutic management of these patients.

  14. Anatomy of Inferior Mesenteric Artery in Fetuses

    Directory of Open Access Journals (Sweden)

    Ayesha Nuzhat

    2016-01-01

    Full Text Available Aim. To analyze Inferior Mesenteric Artery in fetuses through its site of origin, length, diameter, and variation of its branches. Method. 100 fetuses were collected from various hospitals in Warangal at Kakatiya Medical College in Andhra Pradesh, India, and were divided into two groups, group I (second-trimester fetuses and group II (third-trimester fetuses, followed by dissection. Result. (1 Site of Origin. In group I fetuses, origin of Inferior Mesenteric Artery was at third lumbar vertebra in 33 out of 34 fetuses (97.2%. In one fetus it was at first lumbar vertebra, 2.8%. In all group II fetuses, origin of Inferior Mesenteric Artery was at third lumbar vertebra. (2 Length. In group I fetuses it ranged between 18 and 30 mm, average being 24 mm except in one fetus where it was 48 mm. In group II fetuses the length ranged from 30 to 34 mm, average being 32 mm. (3 Diameter. In group I fetuses it ranged from 0.5 to 1 mm, and in group II fetuses it ranged from 1 to 2 mm, average being 1.5 mm. (4 Branches. Out of 34 fetuses of group I, 4 fetuses showed variation. In one fetus left colic artery was arising from abdominal aorta, 2.9%. In 3 fetuses, Inferior Mesenteric Artery was giving a branch to left kidney, 8.8%. Out of 66 fetuses in group II, 64 had normal branching. In one fetus left renal artery was arising from Inferior Mesenteric Artery, 1.5%, and in another fetus one accessory renal artery was arising from Inferior Mesenteric Artery and entering the lower pole of left kidney. Conclusion. Formation, course, and branching pattern of an artery depend on development and origin of organs to attain the actual adult position.

  15. El desarrollo de las Organizaciones del Tercer Sector en el proceso de modernización y más allá

    Directory of Open Access Journals (Sweden)

    PIERPAOLO DONATI

    1997-01-01

    Full Text Available la sociologia se encuentra ante la urgente necesidad de definir que es el tercer sector y que son las organizaciones del tercer sector (ots. la hipotesis de este articulo es que las ots son actores de modernizacion. dentro del marco de un cambio social mas general, las ots, en cuanto que "subjetividades sociales", estan llamadas a dar vida a una sociedad diferente de la primera modernidad y sus sucesivos desarrollos en una direccion antihumanista. estos sujetos son portadores de una cultura organizativa en la que los derechos de ciudadania adoptan un caracter relacional. en resumen: el tercer sector debe analizarse como el producto de la diferenciacion societal en condiciones de creciente complejidad social.

  16. Third molar surgery: the patient's and the clinician's perspective

    Directory of Open Access Journals (Sweden)

    Jerjes Waseem

    2009-10-01

    Full Text Available Abstract Background In this report, the problems of third molar surgery have been reviewed from the perspective of both patient and clinician; additionally an overall analysis of preoperative imaging investigations was carried out. Specifically, three main areas of interest were investigated: the prediction of surgical difficulty and potential complications; the assessment of stress and anxiety and finally the assessment of postoperative complications and the surgeon's experience. Findings In the first study, the prediction of surgical difficulty and potential injury to the inferior alveolar nerve was assessed. This was achieved by examining the patient's orthopantomograms and by using the Pederson Difficulty Index (PDI. Several radiological signs were identified and a classification tree was created to help predict the incidence of such event. In the second study, a prospective assessment addressing the patient's stress and anxiety pre-, intra- and postoperatively was employed. Midazolam was the active drug used against placebo. Objective and subjective parameters were assessed, including measuring the cortisol level in saliva. Midazolam was found to significantly reduce anxiety levels and salivary cortisol was identified as an accurate anxiety marker. In the third study, postoperative complications and the surgeon's experience were examined. Few patients in this study suffered permanent nerve dysfunction. Junior surgeons reported a higher complication rate particularly in trismus, alveolar osteitis, infection and paraesthesia over the distributions of the inferior alveolar and lingual nerves. In apparent contrast, senior surgeons reported higher incidence of postoperative bleeding. Discussion These studies if well employed can lead to favourable alteration in patient management and might have a positive impact on future healthcare service.

  17. Prevalência de perda precoce de molares decíduos: estudo retrospectivo = Prevalence of early loss of deciduous molars: a retrospective study

    Directory of Open Access Journals (Sweden)

    Alessandro Leite Cavalcanti

    2008-07-01

    Full Text Available Este estudo retrospectivo determinou a prevalência da perda precoce demolares decíduos em pacientes atendidos na clínica de Odontopediatria da Universidade Estadual da Paraíba. Foram examinados 515 prontuários, sendo os dados registrados em um formulário. Foram analisadas as variáveis: gênero, idade, tipo de molar decíduo perdido,arcada dentária (maxilar ou mandibular e lado (direito e esquerdo. Observou-se que a prevalência de perda precoce foi de 15,1%, existindo uma distribuição similar entre os gêneros. Em relação à idade da criança, a maior freqüência de perda acometeu pacientescom sete anos (32,1%. Houve distribuição equitativa da perda dentária entre as arcadas superior e inferior, com 43,6% cada uma, sendo o lado esquerdo o mais acometido (41%. O segundo molar superior esquerdo foi o mais acometido (17,9%, seguido do primeiromolar decíduo superior direito (16,1%. Pode-se concluir que a prevalência de perda precoce foi baixa e que os molares decíduos superiores foram os dentes mais comumente perdidos.This retrospective study determined the prevalence of early loss of deciduous molars in patients enrolled at the Pediatric Dentistry clinic at the State University of Paraíba. A review of 515 patient records were analyzed, registered in a form. The following variables were analyzed: gender, age, type of deciduous molar loss, region (maxilla or mandible and side (right and left. It was observed that the prevalence of early tooth loss was 15.1% and there was a similar distribution between the genders. In regard to age, the greatest frequency of tooth loss involved patients at 7 years old (32.1%. There was a similar distribution of tooth loss between the maxilla and mandible regions, at 43.6% each, with the left side being themost involved (41%. The second upper left deciduous molar was the most commonly missing tooth (17.9%, followed by the first upper right deciduous molar (16.1%. It can be concluded that the

  18. Efficiency of a pendulum appliance for molar distalization related to second and third molar eruption stage.

    Science.gov (United States)

    Kinzinger, Gero S M; Fritz, Ulrike B; Sander, Franz-Günter; Diedrich, Peter R

    2004-01-01

    A modified pendulum appliance, including a distal screw and special preactivated pendulum springs (built-in straightening activation and toe-in bending), was used for bilateral maxillary molar distalization in 36 adolescent patients in various stages of the molar dentition. The patients were divided into 3 groups (PG 1-3) according to the stage of eruption of their second and third molars. In PG 1 (18 patients), eruption of the second molars had either not yet taken place or was not complete. In PG 2 (15 patients), the second molars had already developed as far as the occlusal plane, with the third molars at the budding stage. In PG 3 (3 patients), germectomy of the wisdom teeth had been carried out, and the first and second molars on both sides had completely erupted. Analysis of cephalograms to identify any changes in the sagittal plane showed that, in the direction of distalization, a tooth bud acts on the mesial neighboring tooth like a fulcrum, and that tipping of the first molars in patients in whom the second molar was still at the budding stage was thus greater. In patients whose second molars had erupted completely, the degree of tipping was greater again when a third molar bud was located in the direction of movement. After previously completed germectomy of the wisdom teeth, almost exclusively bodily distalization of both molars is possible, even without bands being applied to the second molars. However, if the first and second molars are distalized simultaneously with a pendulum appliance, the duration of therapy will be longer, greater forces will have to be applied, and more anchorage will be lost. Statistical analysis of the results of dental-angular measurements showed significant differences in the degree of molar tipping and reciprocal incisor protrusion. The degree of distal tipping of first molars was less in patients with erupted second molars (PG 2 and PG 3) than in those whose second molars were not yet erupted (PG 1). For instance, the

  19. Enseñanza secundaria, clases sociales y relaciones internacionales en los países del tercer Mundo desde 1945

    OpenAIRE

    Gelpi, Ettore

    1997-01-01

    Ensenyament secundari, classes socials i relacions internacionals als pasos del Tercer Món des de 1945. Després de constatar l'elevat grau de dependència econòmica, laboral i informativa dels països del Tercer Món respecte les potències desenvolupades, l'autor significa que encara apareixen nous condicionaments que incideixen negativament sobre l'ensenyament secundari establert en la zona Sud (Àfrica, Amèrica Llatina i Àsia). Tot i els esforços d'aquests països per conservar la seva llen...

  20. Efeito da perda prematura de molares decíduos na sobressaliência

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    Yérica M García

    2011-01-01

    Full Text Available A perda precoce de molares decíduos predispõe as maloclusões, entre estas o apinhamento dentário, impactação de dentes permanentes e alteração da relação molar e canino. O objetivo do estudo foi determinar o efeito das perdas precoces dos molares decíduos na relação horizontal incisiva. O estudo é do tipo documentado, retrospetivo e observacional. Foram avaliados os registros ortodônticos (histórias clínicas, fotografias e radiografias de 209 pacientes na faixa etária de 4 a 15 anos de idade. A relação incisiva horizontal foi considerada normal para os pacientes do GRUPO 1, com contato entre a face incisal dos incisivos inferiores e a face palatina dos incisivos superiores. No GRUPO 2, a relação incisiva horizontal foi considerada aumentada, com distância positiva entre eles e no GRUPO 3, a relação incisiva horizontal foi considerada negativa quando as faces incisais dos incisivos superiores e inferiores se encontravam a topo ou em mordida cruzada. Os dados foram analisados através do coeficiente Pearson (p ≤ 0,001. Na análise dos dados coletados, o total de quarenta e cinco pacientes (22% apresentaram perdas prematuras. A prevalência destas perdas não apresentou diferença significativa entre sexos e foi maior no grupo de faixa etária de 7 a 9 anos de idade. Dos pacientes com perda prematura seis (13,3% foram clasificados no GRUPO 1; doze (26,7% no GRUPO 2 e vinte e sete (60% no GRUPO 3. A relação entre o número de molares perdidos e a presença de mordida cruzada anterior foi encontrada, e a média de molares perdidos (4,7 foi maior no GRUPO 3. Os resultados mostraram que as perdas precoces dos molares decíduos apresentam uma relação estatisticamente significante com a mordida cruzada anterior, sugerindo que a falta de suporte oclusal pode favorecer o desenvolvimento protrusivo da mandibula.

  1. Iatrogenic injury to the inferior alveolar nerve

    DEFF Research Database (Denmark)

    Hillerup, Søren

    2008-01-01

    The purpose of this prospective, non-randomised, descriptive study is to characterise the neurosensory deficit and associated neurogenic discomfort in 52 patients with iatrogenic injury to the inferior alveolar nerve (IAN). All patients were examined and followed up according to a protocol assess...

  2. Endovascular treatment of ruptured distal posterior inferior ...

    African Journals Online (AJOL)

    Objective: To investigate the clinical characteristics and endovascular treatment of ruptured distal posterior inferior cerebellar artery (PICA) aneurysms. Methods: 11 consecutive patients (7 women, 4 men, mean age of 49.2 years) with ruptured distal PICA aneurysms were studied retrospectively. All had onset of acute ...

  3. CHAND LC 4445 CAPITOL. EL TERCER VIAJE DE LE CORBUSIER A CHANDIGARH, MARZO-ABRIL 1952

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    Pere Fuertes Perez

    2010-11-01

    Full Text Available RESUMEN El tercer viaje de Le Corbusier a Chandigarh, un año después de su primer contacto con la India, está íntimamente ligado a la definición del Capitolio en tanto que plataforma activa, capaz de poner en tensión los palacios institucionales de la que forman parte, y en tanto que realidad aislada de la ciudad y únicamente vinculada a la experiencia de las vastas dimensiones del país, al llano que la sustenta, a su techo de cielo y a las montañas que ponen fin al terreno horizontal. Durante los veinticinco días que permanece en el lugar, Le Corbusier define el Capitolio como recinto y determina sus límites, introduce la física de los reflejos combinados, intensifica la topografía como tema arquitectónico que anima la plataforma del Capitolio y dibuja los jardines que preceden al palacio del Gobernador, como síntesis de todos los temas expuestos. Los resultados darán lugar, a su vuelta, al plano con número de atelier chand lc 4445 capitol. Más adelante, a medida que se definen los palacios, el Capitolio irá modificándose para alcanzar una nueva situación de equilibrio respecto a ellos, pero siempre en relación a aquello que sucedió durante esos días de 1952.SUMMARY. The third trip of Le Corbusier to Chandigarh, a year after his first contact with India, is closely bound to the definition of the Capitol as an active platform, capable of pulling together the institutional palaces of which it forms a part and as a reality isolated from the city and uniquely linked to the experience of the vast dimensions of the country, to the plain that supports it, to its ceiling of sky and to the mountains that end the horizontal land. During the twenty-five days he stayed there, Le Corbusier defined the Capitol as an area and determined its limits. He introduced the physics of the combined reflections, intensified the topography as an architectural theme that animates the platform of the Capitol and drew the gardens that lead to the

  4. Predicting pathology in impacted mandibular third molars

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    Aveek Mukherji

    2017-01-01

    Full Text Available Introduction: The rising incidence of the impacted mandibular third molars and their association with pathologies is now considered a public health problem. Aims and Objectives: The objective of this study was to assess the position of impacted mandibular third molars that are prone to developing pathologies and to determine the frequency and type of pathological conditions associated with these impacted teeth to facilitate planning for their prophylactic removal. Materials and Methods: Consecutive panoramic radiographs and clinical examination of 300 patients with impacted mandibular third molars were collected. They were segregated according to Pell and Gregory’s classification, Winter’s classification, and according to their state of eruption. These were correlated with associated pathologies based on clinical and radiological criteria. Statistical Analysis Used: Descriptive statistics included computation of percentages, mean, and standard deviations. The statistical test applied for the analysis was Pearson’s Chi-square test (χ2. For this test, confidence interval and P value were set at 93% and ≤0.03, respectively. Results: The pathology most commonly associated with impacted third molars was pericoronitis, which had the highest frequency of occurrence in partially erupted, distoangular, and IA positioned (as per Pell and Gregory classification impacted teeth. Impacted mandibular third molars, which were in IA position, placed mesially, and partially erupted, were prone to develop pathologies such as dental caries and periodontitis. Conclusion: The clinical and radiographical features of impacted third molar may be correlated to the development of their pathological complications. The partially impacted mandibular third molars with mesioangularly aligned in IA position have the highest potential to cause pathological complications.

  5. Ketac Molar Versus Dyract Class II restorations in primary molars: twelve month clinical results.

    Science.gov (United States)

    Marks, L A; van Amerongen, W E; Borgmeijer, P J; Groen, H J; Martens, L C

    2000-01-01

    The aim of the present clinical study was an in vivo evaluation of an improved conventional glass ionomer cement Ketac Molar (ESPE), compared to a polyacid modified composite resin, Dyract (Dentsply/De Trey), used in primary molars. Fifty-three Ketac Molar and fifty-two Dyract restorations were placed in box-only preparations in primary molars. The application time for the chemically cured Ketac Molar, was longer compared to the light-cured Dyract. In comparing the materials, no differences were found, comparing both materials regarding secondary caries, marginal adaptation, wear and fracture toughness. One case of recurrent caries adjacent to a Ketac Molar restoration and two cases in the Dyract group were reported. Two Ketac Molar restorations and one Dyract showed bulk fracture at the time of evaluation. At the twelve-month evaluation, no difference between the investigated materials was registered, which indicates that Ketac Molar can be used as a proximal restoration in the primary dentition. It should be emphasized, however, that one-year data should not be extrapolated to indicate the long-term success of restorations.

  6. Comparative evaluation of molar distalization therapy with erupted second molar: Segmented versus Quad Pendulum appliance.

    Science.gov (United States)

    Caprioglio, Alberto; Cozzani, Mauro; Fontana, Mattia

    2014-01-01

    There are controversial opinions about the effect of erupted second molars on distalization of the first molars. Most of the distalizing devices are anchored on the first molars, without including second molars; so, differences between sequentially distalize maxillary molars (second molar followed by the first molar) or distalize second and first molars together are not clear. The aim of the study was to compare sequential versus simultaneous molar distalization therapy with erupted second molar using two different modified Pendulum appliances followed by fixed appliances. The treatment sample consisted of 35 class II malocclusion subjects, divided in two groups: group 1 consisted of 24 patients (13 males and 11 females) with a mean pre-treatment age of 12.9 years, treated with the Segmented Pendulum (SP) and fixed appliances; group 2 consisted of 11 patients (6 males and 5 females) with a mean pre-treatment age of 13.2 years, treated with the Quad Pendulum (QP) and fixed appliances. Lateral cephalograms were obtained before treatment (T1), at the end of distalization (T2), and at the end of orthodontic fixed appliance therapy (T3). A Student t test was used to identify significant between-group differences between T1 to T2, T2 to T3, and T1 to T3. QP and SP were equally effective in distalizing maxillary molars (3.5 and 4 mm, respectively) between T1 and T2; however, the maxillary first molar showed less distal tipping (4.6° vs. 9.6°) and more extrusion (1.1 vs. 0.2 mm) in the QP group than in the SP group, as well as the vertical facial dimension, which increased more in the QP group (1.2°) than in the SP group (0.7°). At T3, the QP group maintained greater increase in lower anterior facial height and molar extrusion and decrease in overbite than the SP group. Quad Pendulum seems to have greater increase in vertical dimension and molar extrusion than the Segmented Pendulum.

  7. Frecuencia de roncopatía en mujeres durante el tercer trimestre del embarazo, en un hospital general

    Directory of Open Access Journals (Sweden)

    Renzo Figari

    2010-04-01

    Full Text Available Objetivo: Determinar la frecuencia y distribución de la roncopatía durante el tercer trimestre de gestación en pacientes hospitalizadas en un hospital general. Materiales y métodos: Estudio descriptivo y transversal, realizado entre septiembre y octubre del año 2004 en el Hospital Nacional Cayetano Heredia. Se incluyeron 295 voluntarios de 304. Se emplearon 3 encuestas: Cuestionario de Ronquidos, Escala de somnolencia de Epworth y Prueba de Calidad del Sueño. Adicionalmente se aplicó la medida morfométrica de Kushida. Resultados: La edad promedio fue de 25,9 ± 1,67 años; con una edad gestacional promedio de 39,3 ± 1,55 semanas. El 44,7% presentó roncopatía en el tercer trimestre y el 10,5% eran roncadoras habituales, 23,7% reportó tener somnolencia. Solo el 0,7% tuvo resultado positivo para la medida morfométrica de Kushida. Se encontró un riesgo incrementado de presentar roncopatía habitual en las pacientes mayores de 25 años. Finalmente, el 13,6% tuvo Hipertensión Inducida por la Gestación y de estas, 22,5% eran roncadoras habituales. Estas últimas con un riesgo 3 veces mayor de tener hipertensión inducida por la gestación. Conclusiones: La prevalencia de roncopatía y roncadoras habituales durante el tercer trimestre en pacientes hospitalizadas en el Hospital Nacional Cayetano Heredia es similar a la reportada en literatura internacional. El índice de Kushida no resultó aplicable en nuestra población. Existe una relación entre la presencia de roncopatía habitual e hipertensión inducida por la gestación.(Rev Med Hered 2010;21:91-96

  8. Fabrication and Evaluation of a Noncompliant Molar Distalizing Appliance: Bonded Molar Distalizer

    Directory of Open Access Journals (Sweden)

    S. Arab

    2011-09-01

    Full Text Available Objective: Attempts to treat class II malocclusions without extraction in non-compliant patients have led to utilization of intraoral molar distalizing appliances. The purpose of this study was to investigate dental and skeletal effects of Bonded Molar Distalizer (BMD which is a simple molar distalizing appliance.Materials and Methods: Sixteen patients (12 girls, four boys with bilateral half-cusp class II molar relationship, erupted permanent second molars and normal or vertical growth pattern were selected for bilateral distalization of maxillary molars via BMD. Thescrews were activated every other day, alternately. Lateral cephalograms and study models were obtained before treatment and after 11 weeks activation of the appliance.Results: Significant amounts of molar distalization, molar distal tipping and anchorage loss were observed. The mean maxillary first molar distal movement was 1.22±0.936 mm with a distal tipping of 2.97±3.74 degrees in 11 weeks. The rate of distal movement was0.48 mm per month. Reciprocal mesial movement of the first premolars was 2.26±1.12 mm with a mesial tipping of 4.25±3.12 degrees. Maxillary incisors moved 3.55±1.46 mm and tipped 9.87±5.03 degrees mesially. Lower anterior face height (LAFH decreased 1.28±1.36 mm.Conclusion: BMD is appropriate for distalizing maxillary molars, especially in patients with critical LAFH, although significant amounts of anchorage loss occur using this appliance.

  9. Inferior Oblique Botulinum Toxin Injection: A Postoperative Diplopia Test for Secondary Inferior Oblique Muscle Overaction.

    Science.gov (United States)

    Bansal, Shveta; Marsh, Ian B

    2016-01-01

    To evaluate the utility of botulinum toxin injection into the inferior oblique muscle for secondary inferior oblique muscle overaction. A retrospective review of 18 patients and 23 injections performed over a 9-year period. Indications and deviations in primary position and contralateral gaze before and after injection were recorded. Functional outcomes and further management (conservative vs surgical) were observed. In 14 patients, chemodenervation resulted in a temporary improvement in symptoms. Eleven of these patients went on to have inferior oblique myectomy with resolution of their diplopia. Two patients preferred to receive regular injections of botulinum toxin as a treatment. Botulinum toxin chemodenervation of the inferior oblique muscle in cases of secondary inferior oblique muscle overaction is useful where one needs to establish a risk of overcorrection following planned inferior oblique muscle weakening. This is particularly true in cases where the primary position deviation may be small but symptoms of diplopia exist on contralateral side gaze, giving rise to a narrowed field of binocular single vision. Copyright 2016, SLACK Incorporated.

  10. Qualitative and quantitative assessment of relationship between mandibular third molar and angle fracture on North Indian population: A clinico-radiographic study.

    Science.gov (United States)

    Yadav, Suresh; Tyagi, Shallu; Puri, Naveen; Kumar, Prince; Kumar, Puneet

    2013-04-01

    To assess the relationship between impacted mandibular third molar presence and the risk for mandibular angle fracture with the effect of various positions of mandibular third molar and the risk of mandibular angle fracture. In the North Indian territory, a total of 289 patients with mandibular angle fractures were studied and evaluated for the possible relationship with impacted third molar on the basis of clinical and panoramic radiographical findings. Results that confirmed the highest risk for mandibular angle fracture was associated with mesioangular angulations (45.42%) followed by vertical (26.34%), distoangular in sequence and least risk was found with bucco-version angulations (2.67%) according to Winter's classification. Additionally, the highest risk of mandibular angle fracture was reported with partially erupted third molar (47.75%), followed by erupted (23.53%) and unerupted third molar (19.38%). The risk for mandibular angle fracture is not only affected by status of eruption, angulations, position, number of roots present in third molar but also by the distance of mandibular third molar from inferior border of mandible and the percentage of remaining amount of bone at the mandibular angle region.

  11. Tercer sector y educación en perspectiva histórica: estudio de la incidencia pedagógica de las redes de sociabilidad organizada

    Directory of Open Access Journals (Sweden)

    Pere SOLÁ

    2013-11-01

    Full Text Available Se aborda la conceptualización de los factores educativos informales que han de servir al historiador social para analizar las relaciones entre Tercer Sector y educación en el marco del estudio de la incidencia pedagógica de las redes de sociabilidad organizada. La constitución de un censo analítico tan exhaustivo como fuera posible de entidades de un ámbito geográfico concreto (demarcación provincial leridana sirve para investigar en qué medida la sociedad civil se ha dotado de redes asociativas a lo largo de los dos últimos siglos y de qué formas la acción difusa de las asociaciones voluntarias ha ejercido una influencia educativa y cívica potenciadora de la sociedad civil y de sus diversos segmentos menos integrados o desfavorecidos. Avanzar —en este caso desde la historia de la educación— en el análisis del trata- miento educativo y didáctico del Tercer Sector contribuye al diseño de un currícu- lum para una formación avanzada de voluntarios del Tercer Sector y de animadores y profesionales en el ámbito no lucrativo y facilita la optimización pedagógica de los procesos del Tercer Sector.

  12. Inferior alveolar nerve repositioning and orthognathic surgery.

    Science.gov (United States)

    Rahpeyma, Amin; Khajehahmadi, Saeedeh

    2014-09-01

    Inferior alveolar nerve (IAN) repositioning is a well-known technique in implant dentistry. This invaluable technique can be combined with orthognathic techniques to enhance the effect of orthognathic surgery in some selected cases. In a retrospective study, data were obtained from the archived files of Department of Oral and Maxillofacial Surgery, Mashhad University of Medical Sciences, Iran, from 2007 to 2012. Patients undergoing mandibular orthognathic surgery alone or in combination with maxillary surgery were searched. Cases with IAN repositioning were selected. In this study, in 4% of orthognathic surgical procedures involving the mandibular bone, IAN repositioning was indicated. Genioplasty, body ostectomy, total mandibular subapical alveolar osteotomy, and inferior border osteotomy for correction of asymmetric mandibular excess in hemimandibular hyperplasia were in this list. In carefully selected orthognathic patients, IAN repositioning can enhance the effect of orthognathic surgery and should be considered in the treatment plan strategies as an option.

  13. Impacto de la retirada de la vacuna de varicela en los casos atendidos en un hospital de tercer nivel

    OpenAIRE

    Conejo Fernández, Antonio José

    2017-01-01

    Estudio del impacto que ha tenido la retirada de la vacuna frente a la varicela de las farmacias comunitarias en España sobre el número de casos de varicela atendidos en Urgencias Pediátricas y en planta de hospitalización pediátrica en un hospital pediátrico de tercer nivel de Málaga. Además, se realiza una estimación de las consecuencias sobre el volumen de población susceptible a la varicela en la provincia de Málaga y su posible relación con los cambios observados en los casos de varicela...

  14. Does Wal-Mart Sell Inferior Goods?

    OpenAIRE

    Emek Basker

    2008-01-01

    I estimate the aggregate income elasticity of Wal-Mart's and Target's revenues using quarterly data for 1997-2006. I find that Wal-Mart's revenues increase during bad times, whereas Target's revenues decrease, consistent with Wal-Mart selling "inferior goods" in the technical sense of the term. An upper bound on the aggregate income elasticity of demand for Wal-Mart's wares is -0.5.

  15. Avaliação da presença do canal cavo inter-radicular em molares pelo método da microscopia eletrônica de varredura

    Directory of Open Access Journals (Sweden)

    Lorenzzo De Angeli CESCONETTO

    Full Text Available Resumo Introdução A cavidade pulpar ainda é um mistério a ser desvendado, pois podem existir inúmeras ramificações que precisam ser esclarecidas para que o clínico possa interpretar e desenvolver o seu papel adequadamente. Uma das variações anatômicas que apresentam grande controvérsia na literatura é o reconhecimento da presença do canal cavo inter-radicular. Este canal tem origem no assoalho da câmara pulpar, percorre a dentina inter-radicular e alcança o ligamento periodontal na região de furca, constituindo uma das vias de comunicação entre o ligamento periodontal e o tecido pulpar, podendo servir como meio de contaminação. Objetivo Estudar a frequência do canal cavo inter-radicular em molares. Material e método Análise de cinco primeiros molares superiores, dez segundos molares superiores, dez primeiros molares inferiores e dez segundos molares inferiores, utilizando-se a microscopia eletrônica de varredura. Resultado Foi observada a presença de forames em 30% dos assoalhos e 50% das furcas dos primeiros molares inferiores, e 40% e 60% no assoalho e na furca dos segundos molares inferiores, respectivamente. O diâmetro desses forames variou de 32 µm até 312 µm. Conclusão A prevalência deste canal é muito variada ao se analisarem as diferentes metodologias.

  16. Epidemiología de la encefalopatía neonatal en un hospital de tercer nivel en Cuba

    Directory of Open Access Journals (Sweden)

    Gerardo Rogelio Robaina Castellanos

    2013-03-01

    Full Text Available Introducción: los factores de riesgo asociados a la ocurrencia de encefalopatía neonatal han sido poco tratados en países del tercer mundo. De igual forma, se desconoce la incidencia de esta entidad en la mayoría de los centros de atención perinatal en Cuba. Objetivo: determinar la incidencia y factores de riesgo de encefalopatía neonatal en un hospital de tercer nivel de atención perinatal en Cuba. Métodos: se realizó un estudio analítico retrospectivo que incluyó los 35 neonatos con encefalopatía neonatal, provenientes de una cohorte de 19 577 neonatos nacidos vivos en el Hospital Provincial Ginecobstétrico Docente de Matanzas, en el período de 2005-2011. Para la determinación de factores de riesgo se realizó un estudio de caso-control, mediante análisis bivariado, con una relación caso-control de 1:3. Resultados: la incidencia de encefalopatía neonatal fue de 1,78 por 1 000 nacidos vivos. La encefalopatía neonatal posasfixia se presentó en 48,5 % de los casos. La hipertensión arterial materna durante el embarazo, el antecedente materno de hipertensión arterial crónica, la procedencia materna rural y el sexo masculino, constituyeron factores de riesgo antenatales. Los factores de riesgo intranatales encontrados fueron: la presencia de depresión severa al nacer, circulares apretadas al cuello, rotura prematura de membranas, corioamnionitis clínica, placenta previa, estado fetal no tranquilizante y líquido amniótico meconial. Conclusiones: en la población estudiada los factores de riesgo perinatales y algunos antenatales tienen importancia epidemiológica.

  17. Variables of Clinical Significance Predictive of Difficulty of Third Molar Surgery: An Institutional Analysis of 200 Consecutive Procedures

    Directory of Open Access Journals (Sweden)

    Harish Srinivas Kulkarni

    2015-01-01

    Full Text Available Aims and Objectives: To successfully evaluate the difficulty of third molar extraction prior to the surgical procedure, clinical and radiographic findings must be taken into account. The purpose of this research oriented study was to evaluate the importance of variables (patient variables, dental and operative variables such as radio graphically assessed dental factors i.e., tooth morphology, position of the tooth, proximity to the inferior alveolar canal which are of clinical significance posing difficulty in removal of the impacted third molars. Materials and Methods: This prospective study was conducted in 3 years period (January 2012-December 2014 on 200 patients (140 males, 60 females who had undergone third molar surgery under local anesthesia at Oral and Maxillofacial Surgery Department, Tatyasaheb Kore Dental College and Research Centre, Kolhapur, Maharashtra, India. Certain variables such as preoperative radiographic assessment, surgeon′s perspective were assessed accordingly. A variety of data was gathered for each patient including age, gender of the patient, bone impaction, unfavorable root formation, operation time, etc. surgical difficulty was evaluated preoperatively using a parant scale. At the end of each surgery, the clinician recorded the technique used and the duration of each operation. Results and Observations: A total of 200 impacted third molars were removed surgically (140 males, 60 females over a 3 years period and it was observed that increased age, gender predisposition, unfavorable root pattern, depth of impaction, close relationship to inferior alveolar nerve increased the operative time which was statistically significant. The mean operative time was 37 ± 5 minutes. Conclusion: This study demonstrates that preoperative radiological assessment should be taken into account while planning difficult third molar surgery. Although variables such as patient parameters, dental and surgeon′s parameters should be

  18. Non-inferiority trials: are they inferior? A systematic review of reporting in major medical journals.

    Science.gov (United States)

    Rehal, Sunita; Morris, Tim P; Fielding, Katherine; Carpenter, James R; Phillips, Patrick P J

    2016-10-07

    To assess the adequacy of reporting of non-inferiority trials alongside the consistency and utility of current recommended analyses and guidelines. Review of randomised clinical trials that used a non-inferiority design published between January 2010 and May 2015 in medical journals that had an impact factor >10 (JAMA Internal Medicine, Archives Internal Medicine, PLOS Medicine, Annals of Internal Medicine, BMJ, JAMA, Lancet and New England Journal of Medicine). Ovid (MEDLINE). We searched for non-inferiority trials and assessed the following: choice of non-inferiority margin and justification of margin; power and significance level for sample size; patient population used and how this was defined; any missing data methods used and assumptions declared and any sensitivity analyses used. A total of 168 trial publications were included. Most trials concluded non-inferiority (132; 79%). The non-inferiority margin was reported for 98% (164), but less than half reported any justification for the margin (77; 46%). While most chose two different analyses (91; 54%) the most common being intention-to-treat (ITT) or modified ITT and per-protocol, a large number of articles only chose to conduct and report one analysis (65; 39%), most commonly the ITT analysis. There was lack of clarity or inconsistency between the type I error rate and corresponding CIs for 73 (43%) articles. Missing data were rarely considered with (99; 59%) not declaring whether imputation techniques were used. Reporting and conduct of non-inferiority trials is inconsistent and does not follow the recommendations in available statistical guidelines, which are not wholly consistent themselves. Authors should clearly describe the methods used and provide clear descriptions of and justifications for their design and primary analysis. Failure to do this risks misleading conclusions being drawn, with consequent effects on clinical practice. Published by the BMJ Publishing Group Limited. For permission to use

  19. A novel technique for inferior rectus recession

    Directory of Open Access Journals (Sweden)

    Gokyigit B

    2014-01-01

    Full Text Available Birsen Gokyigit, Serpil Akar, Omer Faruk YilmazDepartment of Strabismus, Istanbul Beyoglu Educational and Research Eye Hospital, Istanbul, TurkeyPurpose: To introduce a novel technique of inferior rectus recession operation to allow larger amounts of recession without causing lower lid retraction and to compare this method with the results obtained in standard inferior rectus recession.Material and methods: This study included 20 patients operated on in the authors' clinic. The median age of the patients was 24.5±18.6 (4–73 years and the median follow-up was 9.3±11.8 (3–43 months. Ten patients operated on with the standard method were labeled Group 1 and ten patients operated on with the new method were labeled Group 2. Without exceeding 4 mm, inferior rectus recession to the whole muscle was performed in Group 1 patients. Inferior rectus recession was also performed on patients in Group 2 following the new method. Using a spatula, approximately 10% of the muscle surface fibers were detached intact as a thin layer, and the remaining 90% of deeper fibers were recessed 4–8 mm as planned. Patients' preoperative deviations and lower lid positions were recorded. The same parameters were checked in the first and third month postoperatively. Both groups were evaluated retrospectively by screening their files, and the Mann–Whitney U test was used for statistical evaluation.Results: Lower lid retraction was seen in four patients of Group 1. There was no retraction in Group 2. While there was a need to perform additional vertical muscle procedures for vertical deviations and lower lid retractions in Group 1, it was observed that there was no need for additional procedures in Group 2 patients. There was a statistically meaningful difference between the two procedures (P<0.05.Conclusion: This novel technique was found to be an effective surgical method for permitting more recession without the risk of lower lid retraction.Keywords: inferior rectus

  20. Evaluación del distalador molar Belussi Evaluation of Belussi's molar distalizer

    Directory of Open Access Journals (Sweden)

    Samer Abdel Nour Khoury

    2008-12-01

    Full Text Available La distalización de los molares superiores en mesogresión es una alternativa de tratamiento muy utilizado en nuestros días. Se conocen muchos métodos de distalización molar, estos han evolucionado notablemente y siguen siendo eficaces en el tratamiento. El objetivo de esta investigación fue evaluar los cambios dentales producidos por el distalador molar Belussi. El aparato fue empleado en 11 pacientes con una edad promedio de 12 años, distoclusión de molares causada por mesogresión, y con tipo facial favorable. A cada uno se le confeccionaron modelos de estudio y se le realizaron fotografías, radiografías panorámicas y telerradiografías laterales de cráneo, antes y después del tratamiento, para analizar las variables objeto de estudio. El aparato se mantuvo en boca hasta lograr un sobretratamiento de la relación molar. Finalmente, se obtuvo una distalización molar de 4,45 mm acompañada de una inclinación de 5,55°, con una pérdida mínima de anclaje temporal.The distalization of the superior molars in mesial migration is a useful alternative treatment nowadays. Many methods of molar distalization are known. They have significantly evolved and they are still effective in the treatment. The objective of this investigation was to evaluate the dental changes produced by Belussi Molar Distalizer. The appliance was used in 11 patients with an average of 12 years-old, distoocclusion of molars caused by mesial migration and with a favorable facial type. Study models were made for each one of them and pictures, panoramic x-rays and lateral X-rays of the skull were taken, before and after the treatment, to analyze the variables object of study. The appliance was kept in the mouth until achieving an overtreatment of the molar relation. Finally, a molar distalization of 4.45 mm accompanied with an inclination of 5.55° was obtained, with a minimum loss of temporary anchorage.

  1. Molar Tissue in Spleen: A Case Report

    Directory of Open Access Journals (Sweden)

    Maral Mokhtari

    2016-04-01

    Full Text Available An invasive mole is a rare form of gestational trophoblastic disease in which the molar tissue invades into the deep myometrium, cervical stroma, blood vessels or extrauterine sites. This report is of an invasive mole of spleen that has originated from an ectopic pregnancy, which was primarily though to be a choriocarcinoma.

  2. Taurodontism in deciduous Molars - A Case Report.

    Science.gov (United States)

    Bhat, S S; Sargod, S; Mohammed, S V

    2004-01-01

    Taurodontism has a very low incidence in deciduous dentition and very few cases are reported in the literature, it stands a challenge when it requires pulp therapy. This case report presents a case of Taurodontism in deciduous molars of a five year old male child which required pulp therapy. A clinical and radiographic follow up of the patient is discussed.

  3. Molar extinction coefficients of some fatty acids

    DEFF Research Database (Denmark)

    Sandhu, G.K.; Singh, K.; Lark, B.S.

    2002-01-01

    ) and stearic acid (C18H36O2), has been measured at the photon energies 81, 356, 511, 662, 1173 and 1332 keV. Experimental values for the molar extinction coefficient, the effective atomic number and the electron density have been derived and compared with theoretical calculations. There is good agreement...

  4. ERUPTION DISTURBANCES OF PERMANENT MOLARS - A REVIEW

    NARCIS (Netherlands)

    RAGHOEBAR, GM; BOERING, G; VISSINK, A; STEGENGA, B

    Eruption disturbances of permanent molars may become clinically and radiographically manifest as impaction, primary retention or secondary retention. This may result in clinical problems such as malocclusion and loss of neighboring teeth due to caries and periodontal disease. Which of these

  5. Distalización de molares

    Directory of Open Access Journals (Sweden)

    Ana María García Jiménez

    2016-01-01

    Full Text Available La distoclusión es una anomalía que alcanza a más de la mitad de los pacientes ortodóncicos, entre sus causas se encuentra la mesogresión de molares superiores. Una opción terapéutica es la distalización molar, cuando se considera la corrección sin extracciones. Se presenta el caso de un paciente remitido desde la atención primaria de salud, con relación molar de distoclusión derecha, neutroclusion izquierda, resalte de seis milímetros y sobrepase corona completa. Previa confección de modelos de estudio e indicación de estudio radiográfico, se procedió a la corrección ortodóncica con la placa Cetlin, a la que se le realizaron algunas modificaciones. Se corrigió la distoclusión del primer molar permanente superior derecho hasta la neutroclusión; además del espacio requerido para el acomodamiento del canino superior derecho, se logró la corrección del sobrepase hasta un tercio de corona y se mejoró el resalte de seis a cuatro milímetros.

  6. Bodily distalization of molars with absolute anchorage.

    Science.gov (United States)

    Keles, Ahmet; Erverdi, Nejat; Sezen, Serdar

    2003-08-01

    Palatal implants have been used over the last two decades to eliminate headgear wear and to establish stationary anchorage. In this case report, the stability of a palatal implant for distalization of molars bodily and for anchorage maintenance was assessed. The implant was a stepped screw titanium (4.5 mm diameter x 8 mm length), and it was placed in the palatal region for orthodontic purposes. A surgical template containing a metal drill housing was prepared. Angulation of the drill housing was controlled according to the radiologic tracing of the maxilla transferred to a plaster cast section in the paramedian plane. The implant was placed using a noninvasive technique (incision, flap, and suture elimination) and left transmucosally to facilitate the surgical procedure and to reduce the number of operations. The paramedian region was selected (1) to avoid the connective tissues of the palatine suture and (2) because it is considered to be a suitable host site for implant placement. After three months of healing, the implant was osseointegrated and orthodontic treatment was initiated. For molar distalization, the Keles Slider appliance was modified and, instead of a Nance button, a palatal implant was used for anchorage. The results showed that the molars were distalized bodily at five months, and no anchorage loss was observed. At the end of the treatment, the smile was improved, and an ideal Class I molar and canine relationship, an ideal overbite, and an ideal overjet were all achieved. In conclusion, palatal implants can be used effectively for anchorage maintenance and in space-gaining procedures. Use of a three-dimensional surgical template eliminated implant placement errors, reduced chair time, minimized trauma to the tissues, and enhanced osseointegration. This method can be used effectively to achieve distalization of molars bodily without anchorage loss.

  7. Incidence of distal caries in mandibular second molars due to impacted third molars: Nonintervention strategy of asymptomatic third molars causes harm? A retrospective study.

    Science.gov (United States)

    Srivastava, Nikhil; Shetty, Akshay; Goswami, Rahul Dev; Apparaju, Vijay; Bagga, Vivek; Kale, Saurabh

    2017-01-01

    Removal of impacted third molars is the most common oral surgical procedure. Many investigators have questioned the necessity of removal in patients who are free of symptoms or associated pathologies. The aim of this retrospective study was to evaluate the incidence of caries on distal aspect of mandibular second molars in patients referred for corresponding third molar assessment and to identify its association with angular position and depth of the impacted mandibular third molars based on the classification of Pell and Gregory. Records of 150 patients with impacted third molar presenting to the Department of Oral and Maxillofacial Surgery, Sri Rajiv Gandhi College of Dental Sciences and Hospital, were assessed retrospectively. The radiographic angulation and depth of mandibular third molar impaction were determined and compared to determine the relationship with incidence of caries on the distal surface of the second molar. According to this study results, 37.5% cases show caries on the distal aspect of mandibular second molars. The incidence of caries with mesioangular impacted third molars was 55%. A majority of these mesioangular cases were Level B and Class I as per the Pell and Gregory classification. The prophylactic extraction of mandibular third molars is indicated if the angulation is between 30° and 70° and is justified by incidence of distal caries in the second molars.

  8. Pre-operative assessment of relationship between inferior dental nerve canal and mandibular impacted third molar in Saudi population

    Directory of Open Access Journals (Sweden)

    S. Shujaat

    2014-07-01

    Conclusions: Our sample population most commonly exhibited horizontally angulated class I position B impactions of the mandible. The position of the ID canal significantly influenced the type of impaction and bone contact.

  9. Study of root canal accessibility in human primary molars.

    Science.gov (United States)

    Aminabadi, Naser A; Farahani, Ramin M Z; Gajan, Esrafil B

    2008-03-01

    The aim of the present study was to provide a general scheme for pulpectomy of primary molars that may be useful for decision-making about negotiation of root canals and selection of appropriate instruments. A total of 160 vital primary molars in 85 patients (40 males, 45 females) aged 4-6 years were selected. After taking primary radiographs, local anesthesia was induced, and the teeth were isolated using a rubber dam. Canal accessibility index (CAI) and tooth accessibility index (TAI) were calculated according to initial file size. Mandibular first molars had either three canals (79.2%) or four canals (20.8%), and all second molars had four canals. Maxillary first molars had three canals and second molars had either three canals (70.9%) or four canals (29.1%). Lower accessibility of the mandibular first molar distobuccal root accounted for the lower accessibility of these teeth in comparison with mandibular second molars. While three-canal maxillary second molars were more accessible due to the lower accessibility of the distobuccal canal of the maxillary first molar, poor accessibility of the distal canal in four-canal second molars was responsible for the difficult accessibility of these teeth. In conclusion, it seems that the accessibility of a single canal in each tooth determines the difficulty of accessibility for any given tooth. Moreover, while primary second molars are more accessible than first molars, all of them are negotiable.

  10. An innovative technique to distalize maxillary molar using microimplant supported rapid molar distalizer

    Directory of Open Access Journals (Sweden)

    Meenu Goel

    2013-01-01

    Full Text Available Introduction: In recent years, enhancements in implants have made their use possible as a mode of absolute anchorage in orthodontic patients. In this paper, the authors have introduced an innovative technique to unilaterally distalize the upper left 1 st molar to obtain an ideal Class I molar relationship from a Class II existing molar relationship with an indigenous designed distalizer. Clinical Innovation: For effective unilateral diatalization of molar, a novel cantilever sliding jig assembly was utilized with coil spring supported by a buccally placed single micro implant. The results showed 3 mm of bodily distalization with 1 mm of intrusion and 2° of distal tipping of upper left 1 st molar in 1.5 months. Discussion: This appliance is relatively easy to insert, well-tolerated, and requires minimal patient cooperation compared to other present techniques of molar distalization. Moreover, it is particularly useful in cases that are Class II on one side and Class I on the other, with a minor midline discrepancy and nominal overjet. Patient acceptance level was reported to be within patients physiological and comfort limits.

  11. [The extraction of the lower third molars: germectomy or late avulsion?].

    Science.gov (United States)

    Chiapasco, M; Crescentini, M; Romanoni, G

    1994-05-01

    Lower third molars show the highest incidence of impaction and have been held responsible for pathologies such as pericoronitis, periodontitis, second molars tooth-crown resorption, pain, cysts or odontogenic tumors, primary or secondary crowding of the dentition. Early removal of these teeth to prevent the overmentioned problems is widely acknowledged, as many studies demonstrated a direct correlation between age and incidence of complications. These studies mostly refer to adult patients, while studies about germectomies are few. Because recent contributions showed that the risk of development of these pathologies in presence of impacted third molars is quite low while a certain morbidity associated to this procedure may be expected, a very careful risk to benefit ratio must be considered. The purpose of this study was therefore to compare the incidence of complications and side effects in three age groups, in order to obtain some informations about the choice of the best moment for operation. The patients, 462 females and 406 males, were divided, according to age, in the following three groups: group A included patients from 9 to 16 years; group B included patients from 17 to 24 years; group C included patients over 24 years. All patients were treated under local anesthesia; surgical procedure and instruments were standardized. In group A, formed by 500 germectomies, the incidence of complications was 2.6% (10 instances of secondary infections, 2 instances of trismus, 1 instance of excessive postoperative bleeding). Group B included 570 procedures and the incidence of complications was 2.8% (3 instances of alveolar osteitis, 7 instances of secondary infections, 2 instances of excessive postoperative bleeding, 2 instances od second molar lesions, 1 instance of inferior alveolar nerve paresthesia, 1 instance of trismus). Group C included 430 procedures and the incidence of complications was 7.4% (2 instances of second molar lesions, 9 instances of alveolar

  12. PERFORATION OF INFERIOR ALVEOLAR NERVE BY MAXILLARY ARTERY. Perforation of inferior alveolar nerve by maxillary artery

    Directory of Open Access Journals (Sweden)

    Prakash B Billakanti

    2016-03-01

    Full Text Available La fosa infratemporal es un área anatómica clínicamente importante para la administración de agentes anestésicos locales en odontología y cirugía maxilofacial. Fueron estudiadas variaciones en la anatomía del nervio alveolar inferior y la arteria maxilar en la disección infratemporal. Durante la disección rutinaria de la cabeza en el cadáver de un varón adulto, fue observada una variación excepcional en el origen del nervio alveolar inferior y su relación con las estructuras circundantes. El nervio alveolar inferior se originaba en el nervio mandibular por dos raíces y la primera parte de la arteria maxilar estaba incorporada entre ambas. El origen embriológico de esta variación y sus implicaciones clínicas es debatido. Dado que la arteria maxilar transcurría entre las dos raíces del nervio alveolar inferior, y el nervio estaba fijado entre el foramen oval y el foramen mandibular, el atrapamiento vásculo-nervioso pudo causar entume-cimiento o dolor de cabeza e interferir con la inyección de anestésicos locales en la fosa infratemporal.  Variaciones anatómicas en esta región deben ser tenidas en cuenta, especialmente en casos de tratamiento fallido de neuralgia del trigémino. Infratemporal fossa is clinically important anatomical area for the delivery of local anesthetic agents in dentistry and maxillofacial surgery. Variations in the anatomy of the inferior alveolar nerve and maxillary artery were studied in infratemporal dissection. During routine dissection of the head in an adult male cadaver an unusual variation in the origin of the inferior alveolar nerve and its relationship with the surrounding structures was observed. The inferior alveolar nerve originated from the mandibular nerve by two roots and the first part of the maxillary artery was incorporated between them. An embryologic origin of this variation and its clinical implications is discussed. Because the maxillary artery runs between the two roots of

  13. Mandibular molar crown-topography, a biological predisposing ...

    African Journals Online (AJOL)

    Mandibular molar crown-topography, a biological predisposing factor to development of caries – a post-mortem analysis of 2500 extracted lower permanent molars at the dental centre, University of Benin teaching hospital.

  14. Prevalência das posições de terceiros molares nos municípios de Cunha Porã, Maravilha e Palmitos, no extremo oeste de Santa Catarina = Third molars classifications prevalence in the cities of Cunha Porã, Maravilha and Palmitos in the Nortwest of Santa Catarina state in Brazil

    Directory of Open Access Journals (Sweden)

    Marzola, Clóvis

    2006-01-01

    Full Text Available O presente trabalho propõe uma análise da prevalência da classificação de terceiros molares, nos municípios de Cunha Porã, Maravilha e Palmitos, no Extremo Oeste de Santa Catarina. Seguiram-se para os terceiros molares superiores e inferiores as classificações já propostas por alguns autores. Foram examinadas 585 ortopantomografias, 210 de pacientes do gênero masculino e, 375 de pacientes do gênero feminino. Um total de 1815 terceiros molares foi verificado, com o dente 18 (450, dente 28 (465, dente 38 (453 e, dente 48 (447. Os pacientes variaram numa faixa etária de 15-39 anos, sendo a maior prevalência de 390 pacientes com idade de 15-20 anos. Obteve-se maior prevalência para os terceiros molares superiores nas posições vertical, distal e medial respectivamente. Para os terceiros molares inferiores as posições vertical, medial e horizontal respectivamente, com a Classe I C

  15. Remoción de terceros molares mandibulares con asistencia endoscópica: Nota técnica de un nuevo procedimiento quirúrgico para prevenir lesiones del NAI y formación de defectos óseos Removal of mandibular third molars with endoscopic approach: Technical note of a new surgical procedure to avoid IAN damage and bone defect formation

    Directory of Open Access Journals (Sweden)

    R Fuentes

    2012-08-01

    Full Text Available La variada posición anatómica de los terceros molares mandibulares presenta importantes desafíos asociados a su profundidad y grado de inclinación. Las complicaciones más habituales del procedimiento quirúrgico convencional de extracción se relacionan con la extensa osteotomía y poca visualización del sitio quirúrgico, que pueden generar consecuencias post-quirúrgicas como inflamación, dolor, trismus, lesiones reversibles e irreversibles del nervio alveolar inferior (NAI o nervio lingual, riesgo de fractura y formación de defectos periodontales del segundo molar. La implementación de soportes rígidos en la óptica endoscópica ha permitido utilizar esta tecnología para realizar abordajes mínimamente invasivos para remover terceros molares mediante accesos flapless con una mínima osteotomía de la zona oclusal, conservando la pared bucal y lingual a través de la visualización directa y magnificada del sitio quirúrgico, adaptable a los movimientos del paciente durante la intervención. En este reporte se presenta un nuevo procedimiento quirúrgico mínimamente invasivo a través de asistencia endoscópica para la conservación ósea en la remoción de terceros molares mandibulares con riesgo de lesión del nervio alveolar inferior.Anatomic variability of the position of mandibular third molars represents significant challenges associated with its depth and angulation. The most common complications of conventional surgical procedure are related to extensive osteotomy and poor visualization, which can cause postsurgical effects such as inflammation, pain, trismus, reversible and irreversible lesions of the inferior alveolar nerve (IAN or lingual nerve, fracture risk and formation of a deep periodontal defect on the distal aspect of the second molar. The implementation of rigid endoscopy in optics has allowed to use this technology via a minimally invasive approach to remove third molars by a minimally occlusal flapless ostectomy

  16. Study of Kissing Molars in Turkish Population Sample

    African Journals Online (AJOL)

    2017-06-28

    Jun 28, 2017 ... Mandibular third molars are the most common unerupted teeth; retention of the mandibular second molar is much less common.[1] Simultaneous retention of both teeth is quite rare. “Kissing molars” (KMs) are an interesting finding in permanent mandibular molar teeth. KMs or “rosette formation” was first ...

  17. Ruptured tubal molar pregnancy | Yakasai | Nigerian Journal of ...

    African Journals Online (AJOL)

    Molar pregnancies in most instances develop within the uterine cavity, but may occur at any site. Ectopic molar pregnancy is a rare event. The objective of this study was to present a case of ruptured tubal molar gestation, discuss its clinical features and ways to improve diagnostic accuracy. A 35.year.old woman presented ...

  18. Molar tooth sign - looking beyond the obvious | Mahomed | SA ...

    African Journals Online (AJOL)

    The molar tooth sign was initially identified in Joubert syndrome, named after Marie Joubert who first described it in 1968 as a rare autosomal recessive disorder characterised by the neuroradiological hallmark of the molar tooth sign caused by cerebellar vermian hypoplasia. Subsequently, it emerged that the molar tooth ...

  19. Excess molar volumes, and refractive index of binary mixtures of ...

    African Journals Online (AJOL)

    Excess molar volumes (VE) viscosities and refractive index have been evaluated for binary mixtures of glycerol + water, and glycerol + methanol at 298.15 K and 303.15 K. Excess molar volumes (VE) have been calculated from density. The excess molar volume (VE) results were fitted to the Redlich and Kister type ...

  20. Molar-incisor-hypomineralisation: a literature review.

    Science.gov (United States)

    Willmott, N S; Bryan, R A E; Duggal, M S

    2008-12-01

    Molar-Incisor-Hypomineralisation (MIH) is a qualitative defect of 1-4 first permanent molars with or without the maxillary and mandibular permanent incisors. It seems to have been recognised first in the 1970s and prevalence varies between 2.8% and 25%, dependent upon the study. The dental literature was searched using a number of key terms entered into MEDLINE, the reference list of each paper as located was examined for further papers that had been missed in the initial search. The review of the literature showed that teeth that are affected indicate a systemic cause at around the time of birth; investigators have put forward a number of possible causes; asthma, pneumonia, upper respiratory tract infections, otitis media, antibiotics, dioxins in mother's milk, tonsillitis and tonsillectomy and exanthamatous fevers of childhood. However, at the present time the aetiology remains unclear. Treatment of the affected permanent first molars can include restorations using adhesive intra-coronal restorations to extra-coronal restorations (e.g. preformed metal crowns). There is little evidence to support one option over another. In severe cases extraction at the optimum time may be the best option; allowing the permanent second molars to come forwards. There is little improvement in affected anterior teeth with microabrasion and direct or indirect composite resin restorations may be appropriate in some children. Ultrastructural and biochemical make up of MIH affected teeth seem to have been investigated less than other areas. It is important that children with MIH are diagnosed as early as possible and managed appropriately; this will involve multidisciplinary input.

  1. Ceramic onlay for endodontically treated mandibular molar

    OpenAIRE

    Roopadevi Garlapati; Bhuvan Shome Venigalla; Shekhar Kamishetty; Jayaprakash Thumu

    2014-01-01

    Restoration of endodontically treated teeth is important for the success of endodontic treatment. In full coverage restorations, maximum amount of tooth structure is compromised, so as to conserve the amount of tooth structure partial coverage restorations, can be preferred. This case report is on fabrication of a conservative tooth colored restoration for an endodontically treated posterior tooth. A 22-year-old male patient presented with pain in the mandibular left first molar. After endodo...

  2. Sistemas agroecológicos y su papel en los países del Tercer Mundo

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    F. Funes-Aguilar

    2006-01-01

    Full Text Available El tercer milenio inicia en un mundo globalizado, unipolar: 6.3 mil millones de personas; de ellas, 850 millones hambrientas, 1,200 sin agua potable, 2,400 sin saneamiento, 850 millones analfabetos, 10 millones de niños mueren anualmente. Mientras tanto, 10% de la población disfruta del 70% de riquezas. Proliferan estallidos sociales, guerras, huracanes, terremotos, contaminación ambiental, inundaciones, calentamiento global, SIDA. Numerosas comunidades rurales se han colapsado económica y socialmente, el desempleo aumenta por tecnologías ahorradoras de fuerza laboral, persiste alta migración a las ciudades. La “Revolución Verde”, de especialización e industrialización agropecuaria de países desarrollados, ha generado conflictos ambientales y no ha sido una solución. La geofagia y sed de poder de países y políticos, generan distribución desequilibrada de riquezas. En nuestro planeta abundan resultados positivos con sistemas agroecológicos de producción que han demostrado poder resolver gran número de esos problemas. En América Latina y Cuba, existen experiencias del saber y tradiciones campesinas e indígenas, investigación y producción comercial con soluciones factibles para los problemas de este llamado “Tercer Mundo”, donde están los países más necesitados. Son evidentes los caminos posibles para alcanzar el anhelado desarrollo agropecuario. Este trabajo resume algunos ejemplos de los avances. El reto futuro es integrar los componentes de los agroecosistemas y lograr sinergias, consolidando sistemas agroecológicos holísticos, con eficiencia biológica, productiva, económica, energética y ambiental. Es esperanzador pensar que un futuro agroecológico unido a la voluntad política de desarrollo económico y social, puede contribuir en alto grado a liberar a nuestros países tercermundistas de la crítica situación actual

  3. Added clinical value of the inferior temporal EEG electrode chain.

    Science.gov (United States)

    Bach Justesen, Anders; Eskelund Johansen, Ann Berit; Martinussen, Noomi Ida; Wasserman, Danielle; Terney, Daniella; Meritam, Pirgit; Gardella, Elena; Beniczky, Sándor

    2017-10-07

    To investigate the diagnostic added value of supplementing the 10-20 EEG array with six electrodes in the inferior temporal chain. EEGs were recorded with 25 electrodes: 19 positions of the 10-20 system, and six additional electrodes in the inferior temporal chain (F9/10, T9/10, P9/10). Five-hundred consecutive standard and sleep EEG recordings were reviewed using the 10-20 array and the extended array. We identified the recordings with EEG abnormalities that had peak negativities at the inferior temporal electrodes, and those that only were visible at the inferior temporal electrodes. From the 286 abnormal recordings, the peak negativity was at the inferior temporal electrodes in 81 cases (28.3%) and only visible at the inferior temporal electrodes in eight cases (2.8%). In the sub-group of patients with temporal abnormalities (n = 134), these represented 59% (peak in the inferior chain) and 6% (only seen at the inferior chain). Adding six electrodes in the inferior temporal electrode chain to the 10-20 array improves the localization and identification of EEG abnormalities, especially those located in the temporal region. Our results suggest that inferior temporal electrodes should be added to the EEG array, to increase the diagnostic yield of the recordings. Copyright © 2017 International Federation of Clinical Neurophysiology. Published by Elsevier B.V. All rights reserved.

  4. El año internacional de la juventud y el tercer mundo. ¿Qué hay al final del túnel?

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    André Vernot S.

    1985-01-01

    Full Text Available En el contexto del Año Internacional de la Juventud, se presenta un análisis de los jóvenes de clase baja, especialmente de los marginados. La gran mayoría de la población del Tercer Mundo pertenece al estrato socioeconómico bajo, y la mayoría es muy joven. La migración del campo a la ciudad ha creado serios problemas de empleo, educación, vivienda, y producido delincuencia y una baja calidad de la vida. Se presentan ejemplos de Colombia, que se pueden aplicar a toda América Latina y tal vez a todo el Tercer Mundo

  5. Pattern of mandibular third molar impaction and its association to caries in mandibular second molar: A clinical variant

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    V K Prajapati

    2017-01-01

    Conclusion: According to this study, pattern of mandibular third molar impaction is in association to caries in mandibular second molar. More future studies are needed. In addition, the results of the present study can be used to screen and inform the patients about the possibility of caries in relation to third molar mandibular impaction.

  6. Influence of unilateral maxillary first molar extraction treatment on second and third molar inclination in Class II subdivision patients

    NARCIS (Netherlands)

    Livas, Christos; Pandis, Nikolaos; Booij, Johan Willem; Halazonetis, Demetrios J.; Katsaros, Christos; Ren, Yijin

    Objective: To assess the maxillary second molar (M2) and third molar (M3) inclination following orthodontic treatment of Class II subdivision malocclusion with unilateral maxillary first molar (M1) extraction. Materials and Methods: Panoramic radiographs of 21 Class II subdivision adolescents (eight

  7. Caries dental aguda del primer molar permanente en niños de 12 años

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    Daniel Enrique Reyes Romagosa

    Full Text Available Introducción: el primer molar permanente es considerado la llave de la oclusión dentaria, la presencia de caries en éste es elevada, lo que dificulta el logro de las metas trazadas por organizaciones de salud a nivel mundial en este grupo de edad. Objetivo: determinar el comportamiento de la caries dental aguda en primer molar permanente en una población de 12 años de edad atendida en la Clínica Estomatológica Santa Cruz de la Parroquia Goaigoaza. Métodos: se realizó un estudio descriptivo transversal en la Clínica Estomatológica Santa Cruz. Parroquia Goaigoaza, municipio Puerto Cabello, estado Carabobo, en el período comprendido entre abril del 2009 a abril 2010. Se seleccionaron 97 pacientes de 12 años de edad los que constituyeron el universo y la muestra. Acudieron a la consulta por dolor debido a la presencia de caries dental aguda. Se registraron las variables: edad, sexo, grado clínico de la caries dental, estímulos externos que provocaron dolor, la cara dental y la arcada dentaria más afectadas. La información fue recogida mediante interrogatorio y examen clínico. Resultados: el sexo masculino representó el 63,9 %. La caries dental de 3er grado estuvo presente en un 68 %. Los estímulos externos que provocaron dolor fueron: el frío presente en 75,2 % y los alimentos dulces en 69,1 % en ambos sexos. El primer molar inferior derecho resultó más afectado (46,4 % que el izquierdo (36,1 %, así como la arcada dentaria inferior (25,8 % y la cara oclusal (64,9 %. Conclusiones: predominaron el sexo masculino y la caries dental aguda de 3er grado. El frío y los alimentos dulces fueron los estímulos externos más frecuentes. Los más afectados resultaron el primer molar inferior derecho, la cara oclusal y la arcada dentaria inferior.

  8. Molar tubal ectopic pregnancy: Report of two cases.

    Science.gov (United States)

    Mbarki, Chaouki; Jerbi, Emna; Hsayaoui, Najeh; Zouari, Fatma; Ben Brahim, Ehsen; Oueslati, Hedhili

    2015-06-01

    Ectopic molar pregnancy is a rare occurrence and consequently not often considered as a diagnostic possibility. We report two cases of molar hydatidiform tubal pregnancy. Diagnosis of ectopic pregnancy was confirmed on clinical biological and sonographic investigations. Diagnosis of molar pregnancy was done on histopathology. The clinical course was favorable for both patients. Although rare, molar changes can occur at any site of an ectopic pregnancy. Clinical diagnosis of a molar pregnancy is difficult but histopathology is the gold standard for diagnosis. © 2014 The Authors. Journal of Obstetrics and Gynaecology Research © 2014 Japan Society of Obstetrics and Gynecology.

  9. One year Survival Rate of Ketac Molar versus Vitro Molar for Occlusoproximal ART Restorations: a RCT.

    Science.gov (United States)

    Anna Luisa de Brito, Pacheco; Isabel Cristina, Olegário; Clarissa Calil, Bonifácio; Ana Flávia Bissoto, Calvo; José Carlos Pettorossi, Imparato; Daniela Prócida, Raggio

    2017-11-06

    Good survival rates for single-surface Atraumatic Restorative Treatment (ART) restorations have been reported, while multi-surface ART restorations have not shown similar results. The aim of this study was to evaluate the survival rate of occluso-proximal ART restorations using two different filling materials: Ketac Molar EasyMix (3M ESPE) and Vitro Molar (DFL). A total of 117 primary molars with occluso-proximal caries lesions were selected in 4 to 8 years old children in Barueri city, Brazil. Only one tooth was selected per child. The subjetcs were randomly allocated in two groups according to the filling material. All treatments were performed following the ART premises and all restorations were evaluated after 2, 6 and 12 months. Restoration survival was evaluated using Kaplan-Meier survival analysis and Log-rank test, while Cox regression analysis was used for testing association with clinical factors (α = 5%). There was no difference in survival rate between the materials tested, (HR = 1.60, CI = 0.98-2.62, p = 0.058). The overall survival rate of restorations was 42.74% and the survival rate per group was Ketac Molar = 50,8% and Vitro Molar G2 = 34.5%). Cox regression test showed no association between the analyzed clinical variables and the success of the restorations. After 12 months evaluation, no difference in the survival rate of ART occluso-proximal restorations was found between tested materials.

  10. One year Survival Rate of Ketac Molar versus Vitro Molar for Occlusoproximal ART Restorations: a RCT

    Directory of Open Access Journals (Sweden)

    PACHECO Anna Luisa de Brito

    2017-11-01

    Full Text Available Abstract Good survival rates for single-surface Atraumatic Restorative Treatment (ART restorations have been reported, while multi-surface ART restorations have not shown similar results. The aim of this study was to evaluate the survival rate of occluso-proximal ART restorations using two different filling materials: Ketac Molar EasyMix (3M ESPE and Vitro Molar (DFL. A total of 117 primary molars with occluso-proximal caries lesions were selected in 4 to 8 years old children in Barueri city, Brazil. Only one tooth was selected per child. The subjetcs were randomly allocated in two groups according to the filling material. All treatments were performed following the ART premises and all restorations were evaluated after 2, 6 and 12 months. Restoration survival was evaluated using Kaplan-Meier survival analysis and Log-rank test, while Cox regression analysis was used for testing association with clinical factors (α = 5%. There was no difference in survival rate between the materials tested, (HR = 1.60, CI = 0.98–2.62, p = 0.058. The overall survival rate of restorations was 42.74% and the survival rate per group was Ketac Molar = 50,8% and Vitro Molar G2 = 34.5%. Cox regression test showed no association between the analyzed clinical variables and the success of the restorations. After 12 months evaluation, no difference in the survival rate of ART occluso-proximal restorations was found between tested materials.

  11. Estudio de la prevalencia de un tercer conducto en primeros premolares superiores mediante diafanización

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    Katherine Stephanie De la Rosa Fernández

    2016-09-01

    Full Text Available Existen fracasos endodónticos que son relacionados por diferentes causas como: obturación incompleta, filtración coronal y fallos por parte del clínico en identificar o localizar los conductos radiculares y sus ramificaciones. Por este motivo, es básico la noción de la anatomía interna dental y sobre todo es importante tener en cuenta las variaciones que pueden existir en las distintas piezas dentales. Objetivo: El propósito del presente estudio es conocer la cantidad de conductos existentes en los primeros premolares superiores y saber si existe el tercer conducto en dichas piezas. Materiales y métodos: Se utilizaron 100 primeros premolares superiores donados por la Cátedra de Endodoncia de la Facultad de Odontología de la Universidad Central del Ecuador, los cuales fueron divididos en tres grupos según la cantidad de raíces que presentaban y sometidos a diafanización para poder observar su morfología interna. Resultados: Se encontró en la muestra de dientes evaluados la presencia de tres conductos en el 7%, la presencia de dos conductos en el 72% y de un conducto en el 21%. Conclusiones: Los primeros premolares superiores presentan uno, dos y tres conductos. La presencia de tres conductos tiene una baja prevalencia.

  12. ESTRATEGIAS DE ACCION E INCIDENCIA EN LAS POLITICAS PUBLICAS DE LAS COOPERATIVAS DE TERCER GRADO EN ARGENTINA

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    María Cristina Acosta

    2011-01-01

    Full Text Available Este trabajo indaga sobre la incidencia de las entidades representativas del cooperativismo argentino en las políticas públicas contemporáneas. Se presenta un estudio de caso de las dos más importantes cooperativas de tercer grado del país, se analizan sus metas y estrategias en las interacciones con las dependencias estatales. Los resultados de las acciones de los actores definen metas y estrategias que pueden ser convergentes y/o divergentes. Se concluye que los vínculos que han construido las confederaciones seleccionadas con el Estado presentan características de complementación y cooperación en términos generales. Asimismo, la facultad de las organizaciones estudiadas para incidir en la definición de las políticas públicas resulta no solamente de los recursos propios, sino, principalmente, de las oportunidades políticas y la capacidad de establecer alianzas inter-actorales mediante estrategias colectivas.

  13. Reporte inicial de las investigaciones arqueológicas en el tercer claustro del antiguo convento de Santa Clara de Asís

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    Darwin A. Arduengo García

    2010-07-01

    Full Text Available Este trabajo propone una nueva lectura del tercer claustro del edificio del antiguo convento de Santa Clara de Asís de la Habana Vieja, sede del Centro Nacional de Conservación, Restauración y Museología (CENCREM. Los antecedentes de los que se parte críticamente son la importante investigación publicada por el historiador Pedro Herrera (2006, así como los reportes de las investigaciones arqueológicas llevadas a cabo en las áreas del edificio durante unos cincuenta años. Durante los últimos cinco años las investigaciones fundamentales realizadas por el grupo de arqueología del CENCREM en lo tocante al proyecto investigativo general del convento han estado dedicadas a las instalaciones hidráulicas del primer claustro y a los cambios constructivos del tercer claustro. Como consecuencia de las investigaciones en el tercer claustro se ha identificado una capilla no reportada en la bibliografía o en fuentes documentales

  14. Radiologic study of mandibular third molar of Korean youths

    Energy Technology Data Exchange (ETDEWEB)

    Ahn, Hyung Kyu [Dept. of Oral Radiology, College of Dentistry, Seoul National University, Seoul (Korea, Republic of)

    1982-11-15

    The author has made a study on the classification of the mandibular 3rd molars of Korean youths through dental radiography by means of Pell and Gregory's classification and on the prevalence of the dental caries of distal surface of the mandibular 2nd molar adjacent to the mandibular 3rd molars turned anteriorly. The results are as follow; 1. It was found that the largest case number was class I (272 cases, 52.9%) in the relation of the tooth to the ramus of the mandible and 2nd molar. 2. The mesio-angular position was the largest number (239 cases, 46.5%) in the relation of the long axis of the impacted mandibular 3rd molar to the long axis of the 2nd molar. 3. The mesio-angular position of class I was the largest number (140 cases, 27.2%) in the relation of the tooth to the ramus of the mandible and 2nd molar and the long axis of the impacted mandibular 3rd moral to the long axis of the 2nd molar. 4. The average angle of the long axis of mandibular 3rd molar in mesioangular position or horizontal position to the occlusal plane was 143 W 5. Mandibular 3rd molar with lesion such as dental cries or pericoronitis was 73 cases (14.2). 6. The caries incidence rate of the distal surface of the 2nd molar was about 3.1%.

  15. UNILATERAL DISTALIZATION OF MAXILLARY MOLAR BY PENDULUM APPLIANCE

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    Safra Mauna

    2006-04-01

    Full Text Available Pendulum appliance is one of intraoral appliances to distalize molars for correction of class II molar relationship or space gaining in the maxillary arch. Its major advantages are: no need to depend on patient compliance; ease of fabrication; and better patient acceptance. In this case, 22 years old female patient with class II division 2 malocclusion was treated with pendulum appliance for unilateral distalization of the maxillary molar teeth. Pendulum can distalize second molar until 4 mm in 4 months and continues to distalize first molar in 3 months. Nevertheless, relapse 2 mm happens during anterior retraction. This case has shown that pendulum is an effective and reliable appliance for distalizing maxillary molars. However, molar distalization is at the expense of moderate anchorage loss during anterior retraction, which could possibly be reduced if the anchor unit is adequately reinforced.

  16. Bilateral lower second molar impaction in teenagers: An emergent problem?

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    Shinohara Elio

    2010-01-01

    Full Text Available The frequency of simultaneously impacted second and third molars in teenagers is increasing and becoming a common occurrence in adolescent oral surgery practice. The traditional treatment is the removal of the third molar by conventional access but repositioning of the surgical flap to the distal face of the first molar can predispose to complications such as pericoronitis and delayed healing of the attached gingiva. We present a case in which we use the germectomy approach to remove the impacted third molar for the eruption of the second molar through a vestibular incision. This incision offers excellent bone exposure and exit route for the third molar without disturbing the gingiva attached architecture on the distal face of the first molar providing good healing environment.

  17. Bilateral lower second molar impaction in teenagers: an emergent problem?

    Science.gov (United States)

    Shinohara, Elio H; Kaba, Shajadi Carlos Pardo; Pedron, Irineu Gregnanin; Imparato, Jose Carlos Petorossi

    2010-01-01

    The frequency of simultaneously impacted second and third molars in teenagers is increasing and becoming a common occurrence in adolescent oral surgery practice. The traditional treatment is the removal of the third molar by conventional access but repositioning of the surgical flap to the distal face of the first molar can predispose to complications such as pericoronitis and delayed healing of the attached gingiva. We present a case in which we use the germectomy approach to remove the impacted third molar for the eruption of the second molar through a vestibular incision. This incision offers excellent bone exposure and exit route for the third molar without disturbing the gingiva attached architecture on the distal face of the first molar providing good healing environment.

  18. Outcome of Inferior Patellar Pole Avulsion Fractures

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    Ruban Raj Joshi

    2016-12-01

    Full Text Available Introduction: The optimal treatment for inferior pole patella avulsion fractures has still been a topic of debate. The options include (a internal fixation of the pole fragment and (b resection of the avulsed fragment and repair of the patellar ligament to the patella. We present the comparative outcomes for patients with displaced inferior pole patella treated by resection and transosseous Ethibond® Krackow suture repair of patellar ligament with open reduction and internal fixation with modified tension band wiring and circumferential wiring. Methods: During a three year period between August 2013 and September 2016, twenty consecutive patients with distal pole fractures of the patella were prospectively enrolled in this study. These patients were divided into two groups. Group-T patients were treated with open reduction and internal fixation with modified tension band wire and  group-R patients by resection of the avulsed fragment and reattachment of the patellar ligament to the patella with #5 Ethibond®. Data entry and analysis was done by using SPSS version 20. Anatomical and functional outcome were compared. Results: Consecutive 20 patients were treated either with resection lower patellar pole (n=10 or with open reduction internal fixation with tension band wiring (n=10. Demographics were matched in two groups. Group-T required a longer hospital stay (U=13.5, p=0.005. Complications were seen more often in Goup-T compared to Group-R (p=0.005. Group-R had better scores (Bostman score U=6, p=0.001; SFMA U=7.5, p=0.001 and range of movement (p<0.05. Conclusion: Resection of the avulsed fragment and reattachment of the patellar ligament to the patella had better outcome according to the Bostman and SFMA dysfunction score, shorter hospital stay, and less complications as compared to open reduction and internal fixation with tension band wire and circumferential wiring.

  19. Bilateral inferior petrosal sinus sampling using vasopressin

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    Narendra Kotwal

    2016-01-01

    Full Text Available Context: Anatomical localization of pituitary adenoma can be challenging in adrenocorticotropic hormone (ACTH-dependent Cushing's syndrome, and bilateral inferior petrosal sinus sampling (BIPSS is considered gold standard in this regard. Stimulation using corticotrophin-releasing hormone (CRH improves the sensitivity of BIPSS, however, same is not easily available in India. Therefore, we undertook this study of BIPPS using vasopressin as agent for stimulation owing to its ability to stimulate V3 receptors present on corticotrophs. Aims: To study the tumor localization and lateralization in difficult to localize cases of ACTH-dependent Cushing's syndrome by bilateral inferior petrosal sinus sampling using vasopressin for corticotroph stimulation. Settings and Design: Prospective observational study. Subjects and Methods: Six patients (5 females meeting inclusion criteria underwent BIPSS using vasopressin for stimulation. Results: All six patients had nonsuppressible overnight and low dose dexamethasone suppression test with elevated plasma ACTH levels suggestive of ACTH-dependent Cushing's syndrome. High dose dexamethasone suppression test showed suppressible cortisol in two cases, and microadenoma was seen in two patients on magnetic resonance imaging pituitary. Contrast enhanced computed tomography of the abdomen showed left adrenal hyperplasia in one case and anterior mediastinal mass with bilateral adrenal hyperplasia another. Using BIPSS four patients were classified as having Cushing's disease that was confirmed histopathologically following surgery. Of the remaining two, one had primary pigmented nodular adrenocortical disease, and another had thymic carcinoid with ectopic ACTH production as the cause of Cushing's syndrome. No serious adverse events were noted. Conclusions: Vasopressin may be used instead of CRH and desmopressin for stimulation in BIPSS.

  20. Three-dimensional anatomic analysis of mandibular foramen with mandibular anatomic landmarks for inferior alveolar nerve block anesthesia.

    Science.gov (United States)

    Kang, Sang-Hoon; Byun, In-Young; Kim, Jin-Hong; Park, Hee-Keun; Kim, Moon-Key

    2013-06-01

    We sought to standardize 3-dimensional anatomic positioning of the mandibular foramen (MnF) for inferior alveolar nerve block anesthesia. Three-dimensional mandibular computerized tomography (CT) images were reconstructed from data for 49 patients aged 8-16 years (growth group) and 59 patients aged 18-25 years (adult group). To measure MnF position, we defined 5,6 as the superior contact point between the mandibular first molar and second premolar and 5,6 MnFP as the point on the MnF plane intersecting 5,6 at a right angle. The MnF plane passed through the MnF and parallel to the occlusal plane. In the growth group, the distance from the MnF to the anterior ramus increased with age, as did distance from the gonion to MnF. Measurements correlated significantly with age in the growth group. Needle insertion at an obtuse angle in the MnF plane from the contralateral first molar is appropriate for inferior alveolar nerve block anesthesia. Copyright © 2013 Elsevier Inc. All rights reserved.

  1. MANAGEMENT OF MANDIBULAR THIRD MOLAR SURGERY TO PRESERVE PERIODONTAL HEALTH OF SECOND MOLAR

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    Elitsa G. Deliverska

    2017-06-01

    Full Text Available Background: Extraction of impacted third molar violates surrounding soft and bony tissues. Various surgical approaches and surgical technics have an important impact on the periodontal health of the adjacent second molar. Purpose: The aim of this review is to analyse the causes that can affect postoperative periodontal outcomes for the mandibular second molars (LM2 adjacent to the impacted/ semi impacted mandibular third molars (LM3. Material and Methods: Electronic searches were conducted through the MEDLINE (PubMed, Scopus, etc. databases to screen all relevant articles published from inception to April 2017. Results: Different flap techniques had no significant impact on the probing depth reduction or on the clinical attachment level of LM2. Szmyd and paramarginal flap designs may be the most effective in reducing the probing depth after third molar surgery, and the envelope flap may be the least effective. Use of bone substitutes and guided tissue regeneration therapy has been proposed, to eliminate or prevent these periodontal defects, but there is still no consensus on their predictability or clinical benefit. Higher costs and the risk of postoperative inflammatory complications should also be taken into proper account, as with any surgical procedure. “Orthodontic extraction” is indicated for that impacted M3 that present a high risk of postoperative periodontal defects at the distal aspect of adjacent M2. Conclusion: Risk factors associated with bone loss following lower third molar extraction includes age, the direction of the eruption, preoperative bone defects, and resorbtion of the LM2 root surface. Prevention of such periodontal defects continues to challenge clinicians.

  2. Tratamiento de un molar permanente inmaduro necrótico mediante pulpotomía

    OpenAIRE

    Boj Quesada, Juan Ramón; Cortés Lillo, Olga; Canalda Sahli, Carlos

    1995-01-01

    Se describe un caso que afecta al primer molar permanente inferior derecho, con tumefacción, fluctuación y fístula , con ápices no cerrados. El tratamiento de elección hubiese sido una técnica clásica de apicoformación con hidróxido de calcio. Pero por motivos de colaboración, se realizó una pulpotomía con hidróxido de calcio. Tras los controles radiológicos a los 3 meses, al año y al año y medio se comprobó que continuaba el desarrollo radicular y finalizaba el cierre apical.

  3. Stepwise excavation in a permanent molar

    DEFF Research Database (Denmark)

    Lima, Fernanda Ferruzzi; Pascotto, Renata Corrêa; Benetti, Ana Raquel

    2010-01-01

    The current study presents a 17-year clinical report of stepwise excavation and indirect pulp capping in a lower right first molar, with great dentin destruction and a lack of dentin support of the cusps. At the first appointment, indirect pulp capping with calcium hydroxide and a temporary filling...... with zinc oxide cement were performed to minimize the risk of pulp exposure during excavation. After 45 days, the remaining carious tissue was removed and a restoration with glass-ionomer lining (Vitrebond) and resin composite (P-50) was performed. Satisfactory morphology and function of the restoration...

  4. Molar Pregnancy Presents as Tubal Ectopic Pregnancy

    Directory of Open Access Journals (Sweden)

    Fatemeh Davari Tanha

    2011-01-01

    Full Text Available Hydatidiform moles are abnormal gestations characterized by the presence of hydropic changesaffecting some or all of the placental villi. Hydatidiform moles arise as a result of the fertilizationof an abnormal ovum. In this report, the patient was a 29 year old Asian woman who had inductionof ovulation with letrozol. Since the majority of molar gestations arise within the uterine cavitythus the occurrence of a hydatidiform mole within ectopic gestational tissue is rare. It is importantto differentiate a hydatidiform mole from a conventional ectopic pregnancy, particularly in infertilewomen who have a history of ovulation induction.

  5. Restorative management of severely ankylosed primary molars.

    Science.gov (United States)

    de Moura, Marcoeli Silva; Pontes, Alessandra Silva; Brito, Maria Hellen Sâmia Fortes; de Deus Moura, Lucia; de Deus Moura de Lima, Marina; de Melo Simplício, Alexandre Henrique

    2015-01-01

    Severe dentoalveolar ankylosis is an etiological factor for malocclusion. When infraocclusion occurs early, it progresses with time, leading to severe consequences in young children because of compensatory supra-eruption of the antagonist tooth and mesialization of adjacent teeth. Early diagnosis allows for interception of the problem and may prevent orthodontic treatment. The purpose of this manuscript is to report two cases of infraocclusion of primary mandibular second molars that were diagnosed early and were treated with composite resin crowns. The use of indirect composite restorations for ankylosed teeth is a good option for primary teeth with a moderate/ severe degree of ankylosis.

  6. Root growth during molar eruption in extant great apes.

    Science.gov (United States)

    Kelley, Jay; Dean, Christopher; Ross, Sasha

    2009-01-01

    While there is gradually accumulating knowledge about molar crown formation and the timing of molar eruption in extant great apes, very little is known about root formation during the eruption process. We measured mandibular first and second molar root lengths in extant great ape osteological specimens that died while either the first or second molars were in the process of erupting. For most specimens, teeth were removed so that root lengths could be measured directly. When this was not possible, roots were measured radiographically. We were particularly interested in the variation in the lengths of first molar roots near the point of gingival emergence, so specimens were divided into early, middle and late phases of eruption based on the number of cusps that showed protein staining, with one or two cusps stained equated with immediate post-gingival emergence. For first molars at this stage, Gorilla has the longest roots, followed by Pongo and Pan. Variation in first molar mesial root lengths at this stage in Gorilla and Pan, which comprise the largest samples, is relatively low and represents no more than a few months of growth in both taxa. Knowledge of root length at first molar emergence permits an assessment of the contribution of root growth toward differences between great apes and humans in the age at first molar emergence. Root growth makes up a greater percentage of the time between birth and first molar emergence in humans than it does in any of the great apes. Copyright (c) 2009 S. Karger AG, Basel.

  7. Taking advantage of an unerupted third molar: a case report.

    Science.gov (United States)

    Pereira, Igor Figueiredo; Santiago, Fernando Zander Mucci; Sette-Dias, Augusto Cesar; Noronha, Vladimir Reimar Augusto de Souza

    2017-01-01

    Treatments with dental surgery seek to displace tooth to the correct position within the dental arch. To report a clinical case that took advantage of an unerupted third molar. A male patient, 18 years of age, was referred by his dentist to evaluate the third molars. The clinical exam revealed no visible lower third molars. The computed tomography (CT) exam showed the presence of a supernumerary tooth in the region of the mandibular ramus, on the left side, and impaction of the third molar, which was causing root resorption on the second molar, thus making it impossible to remain in the buccal cavity. The preferred option, therefore, was to remove both second molar and the supernumerary tooth, in addition to attaching a device to the third molar during surgery for further traction. After 12 months, the third molar reached the proper position. When a mandibular second permanent molar shows an atypical root resorption, an impacted third molar can effectively substitute the tooth by using an appropriate orthodontic-surgical approach.

  8. Molar Incisor Hypomineralization, Prevalence, and Etiology

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    Sulaiman Mohammed Allazzam

    2014-01-01

    Full Text Available Aim. To evaluate the prevalence and possible etiological factors associated with molar incisor hypomineralization (MIH among a group of children in Jeddah, Saudi Arabia. Methods. A group of 8-12-year-old children were recruited (n=267  from the Pediatric Dental Clinics at the Faculty of Dentistry, King Abdulaziz University. Children had at least one first permanent molar (FPM, erupted or partially erupted. Demographic information, children’s medical history, and pregnancy-related data were obtained. The crowns of the FPM and permanent incisors were examined for demarcated opacities, posteruptive breakdown (PEB, atypical restorations, and extracted FPMs. Children were considered to have MIH if one or more FPM with or without involvement of incisors met the diagnostic criteria. Results. MIH showed a prevalence of 8.6%. Demarcated opacities were the most common form. Maxillary central incisors were more affected than mandibular (P=0.01. The condition was more prevalent in children with history of illnesses during the first four years of life including tonsillitis (P=0.001, adenoiditis (P=0.001, asthma (P=0.001, fever (P=0.014, and antibiotics intake (P=0.001. Conclusions. The prevalence of MIH is significantly associated with childhood illnesses during the first four years of life including asthma, adenoid infections, tonsillitis, fever, and antibiotics intake.

  9. Sealing Occlusal Dentin Caries in Permanent Molars

    DEFF Research Database (Denmark)

    Qvist, Vibeke; Borum, Mette Kit; Møller, Kirsten Dynes

    2017-01-01

    The purpose of this study was to investigate the possibility of postponing restorative intervention of manifest occlusal caries in young, permanent dentition by non-invasive sealing. This RCT-designed study included 521 occlusal lesions in 521 patients aged 6 to 17 y. Based on clinical and radiog......The purpose of this study was to investigate the possibility of postponing restorative intervention of manifest occlusal caries in young, permanent dentition by non-invasive sealing. This RCT-designed study included 521 occlusal lesions in 521 patients aged 6 to 17 y. Based on clinical...... longevity of sealings and restorations until retreatments, and 3) compare effectiveness of sealings and restorations to halt caries progression in sealed lesions and beneath restorations. Furthermore, we aimed to identify factors influencing longevity and the effectiveness of sealings and restorations.......001). The median survival time for sealings not replaced by restorations was 7.3 y (CI, 6.4 y to NA). Survival of sealings was increased in patients with low caries risk and/or excellent oral hygiene, second molars compared with first molars, and lesions not extending the middle one-third of the dentin. Survival...

  10. Periodontal changes following molar intrusion with miniscrews.

    Science.gov (United States)

    Bayani, Shahin; Heravi, Farzin; Radvar, Mehrdad; Anbiaee, Najmeh; Madani, Azam Sadat

    2015-01-01

    With the introduction of skeletal anchorage system, recently it is possible to successfully intrude molar teeth. On the other hand, there have been concerns about periodontal changes associated with intrusion and there are few studies on this topic, especially for posterior teeth. Ten female patients were enrolled in this study. Maxillary molar intrusion was achieved by inserting two miniscrews and a 17 × 25 titanium molybdenum alloy spring. Crestal height changes were evaluated at three intervals including: Baseline (T0), end of active treatment (T1) and 6 months after retention (T2). Other variables including probing depth, gingival recession, attachment level and bleeding on probing were evaluated by clinical measurements in the three above mentioned intervals. One-sample Kolmogrov-Smirnov test ascertained the normality of the data. For all patients, the changes in tooth position and crestal height were evaluated using one-sample t-test. (P intrusion, but also there were signs of periodontal improvement including attachment gain and shortening of clinical crown height.

  11. Extrações de molares na Ortodontia Molar extractions in orthodontics

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    Marco Antônio Schroeder

    2011-12-01

    Full Text Available O tratamento ortodôntico com extração de molares em pacientes adultos é tecnicamente mais complexo, devido a inúmeros fatores. Em geral, o espaço a ser fechado é maior do que o espaço dos pré-molares e, por isso, a ancoragem é crítica e o tempo de tratamento mais longo. É comum esses casos apresentarem algum grau de comprometimento periodontal por causa da idade dos pacientes e, portanto, necessitam de maior controle da mecânica ortodôntica para reduzir os efeitos colaterais do fechamento do espaço. Por isso, bons resultados de finalização são mais difíceis de ser alcançados. Sendo assim, este artigo tem como objetivo apresentar as razões para a indicação de extração de molares nos tratamentos ortodônticos, as contraindicações, as diferentes fases da mecânica ortodôntica, esclarecer os fatores envolvidos nesse tipo de planejamento e tratamento e apresentar casos clínicos tratados com extração de molares.Orthodontic treatment with extraction of molars in adult patients is technically more complex due to a number of factors. In general, the space to be closed is greater than premolar spaces rendering critical anchorage and longer treatment time. Often such cases exhibit some degree of periodontal involvement due to patient age. Hence, the need for greater control over orthodontic mechanics to reduce the side effects of space closure. Therefore, good finishing results can be more difficult to achieve. Thus, the purpose of this article is to determine the reasons for molar extraction indications, describe different stages of orthodontic mechanics, and explain the issues involved in this kind of planning and treatment. Additionally, it aims at describing some treatments with molar extractions.

  12. Pattern of mandibular third molar impaction and its association to caries in mandibular second molar: A clinical variant.

    Science.gov (United States)

    Prajapati, V K; Mitra, Ruchi; Vinayak, K M

    2017-01-01

    Caries in second molar is common and prophylactic removal of the impacted teeth may be considered appropriate. Caries detection and restoration can be difficult and a restored second molar can undergo recurrent caries if the third molar is not removed prophylactically. In this study, the clinical findings related to impaction and its association with angular position and depth of impacted third molar were evaluated. A retrospective descriptive study was carried out among the patients visiting the outpatient, department of Dentistry, RIMS, Ranchi. The clinical examination, periapical radiographs and Pre-op OPG were taken. Teeth positions were analyzed by Pell and Gregory and Winter classification. The angulation and depth of mandibular third molar impaction and caries in the second molar with the eruption status of the mandibular third molar was determined. A total of 200 patients were included in the study between age group 17-45 years. Majority of the Patients reported to the hospital with complaints of decayed tooth (66%) and pain (59%). The most common third molar impaction was mesioangular followed by distoangular. A statistically highly significant difference (P = 0.001) was obtained with the presence of caries in second molar adjacent to mesioangular third molar in class I and level B. According to this study, pattern of mandibular third molar impaction is in association to caries in mandibular second molar. More future studies are needed. In addition, the results of the present study can be used to screen and inform the patients about the possibility of caries in relation to third molar mandibular impaction.

  13. Survival of sealants in molars affected by molar-incisor hypomineralization: 18-month follow-up.

    Science.gov (United States)

    Fragelli, Camila Maria Bullio; Souza, Juliana Feltrin de; Bussaneli, Diego Girotto; Jeremias, Fabiano; Santos-Pinto, Lourdes Dos; Cordeiro, Rita de Cássia Loiola

    2017-04-27

    The objective of this study was to evaluate the clinical survival of sealants applied in first permanent molars (FPMs) affected by molar-incisor hypomineralization (MIH), at 18 months of follow-up. Forty-one first permanent molars were selected from 21 children, 6-8 years of age. MIH was classified by one calibrated examiner (kappa = 0.80) according to EAPD criteria. The inclusion criteria were fully erupted FPMs with MIH or sound FPMs (without MIH) for which sealant treatment was indicated. The FPMs were assigned to two groups: CG (control group) and HG (MIH group). Both groups were treated with sealant (FluroShield). Clinical follow-up was performed from baseline to 18 months to assess anatomical form, marginal adaptation, retention and presence of caries, according to criteria set by the United States Public Health Service-Modified, and was conducted by a blinded examiner (kappa = 0.80). The actuarial method was used to evaluate the survival of the sealants. The survival rates for the groups were compared using Fisher's exact test (α = 5%). The cumulative survival rates were 81% at 1 month, 68.8% at 6 months, 68.8% at 12 months, and 62.6% at 18 months for CG, and 88% at 1 month, 84% at 6 months, 76% at 12 months, and 72% at 18 months for HG. No significant difference was found between the groups. The sealants in molars affected by MIH presented a survival rate similar to the sealants in the control, suggesting that sealants may be an adequate approach for preventing carious lesions in MIH-affected molars.

  14. Survival of sealants in molars affected by molar-incisor hypomineralization: 18-month follow-up

    Directory of Open Access Journals (Sweden)

    Camila Maria Bullio FRAGELLI

    2017-04-01

    Full Text Available Abstract The objective of this study was to evaluate the clinical survival of sealants applied in first permanent molars (FPMs affected by molar-incisor hypomineralization (MIH, at 18 months of follow-up. Forty-one first permanent molars were selected from 21 children, 6–8 years of age. MIH was classified by one calibrated examiner (kappa = 0.80 according to EAPD criteria. The inclusion criteria were fully erupted FPMs with MIH or sound FPMs (without MIH for which sealant treatment was indicated. The FPMs were assigned to two groups: CG (control group and HG (MIH group. Both groups were treated with sealant (FluroShield. Clinical follow-up was performed from baseline to 18 months to assess anatomical form, marginal adaptation, retention and presence of caries, according to criteria set by the United States Public Health Service-Modified, and was conducted by a blinded examiner (kappa = 0.80. The actuarial method was used to evaluate the survival of the sealants. The survival rates for the groups were compared using Fisher’s exact test (α = 5%. The cumulative survival rates were 81% at 1 month, 68.8% at 6 months, 68.8% at 12 months, and 62.6% at 18 months for CG, and 88% at 1 month, 84% at 6 months, 76% at 12 months, and 72% at 18 months for HG. No significant difference was found between the groups. The sealants in molars affected by MIH presented a survival rate similar to the sealants in the control, suggesting that sealants may be an adequate approach for preventing carious lesions in MIH-affected molars.

  15. Through the looking glass: understanding non-inferiority

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    Wittes Janet T

    2011-05-01

    Full Text Available Abstract Non-inferiority trials test whether a new product is not unacceptably worse than a product already in use. This paper introduces concepts related to non-inferiority, and discusses the regulatory views of both the European Medicines Agency and the United States Food and Drug Administration.

  16. Comparison of the efficacy of two anesthetic techniques of mandibular primary first molar: A randomized clinical trial

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    Davood Ghasemi Tudeshchoie

    2013-01-01

    Full Text Available Background: The most common technique to anesthetize mandibular primary teeth is inferior alveolar (I.A nerve block injection which induces a relatively sustained anesthesia and in turn may potentially traumatize soft-tissues. Therefore, the need of having an alternative technique of anesthesia with a shorter term but the same efficacy is reasonable. The aim of this study was a comparison of the efficacy of two anesthetic techniques of mandibular primary first molar. Materials and Methods: In this randomized crossover clinical trial, 40 children with ages ranged from 5 years to 8 years whose mandibular primary first molars were eligible for pulpotomy, were selected and divided randomly into two groups. The right and left mandibular first molars of group A were anesthetized with infiltration and I. A nerve block techniques in the first and second sessions respectively. The left and right mandibular first molars of group B were anesthetized with I.A nerve block and infiltration techniques in the first and second sessions respectively. The severity of pain were measured and recorded according to sound-eye-motor scale by a certain person. Data was analyzed using Wilcoxon Signed Rank and Mann-Whitney U tests (P < 0.05. Results: The severity of pain was lower in infiltration technique versus I.A nerve block. There were no significant differences between the severities of pain on pulpal exposure of two techniques. Conclusion: It seems that infiltration technique is more favorable to anesthetize the mandibular primary first molar compared to I.A nerve block.

  17. Autotransplantation of Mandibular Third Molar: A Case Report

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    Pabbati Ravi kumar

    2012-01-01

    Full Text Available Autogenous transplantation is a feasible, fast, and economical option for the treatment of nonsalvageable teeth when a suitable donor tooth is available. This paper presents successful autotransplantation of a mature mandibular left third molar (38 without anatomical variances is used to replace a mandibular left second molar (37. The mandibular second molar was nonrestorable due to extensive root caries and resorption of distal root. After extraction of mandibular second and third molars, root canal therapy was done for the third molar extraorally, and the tooth was reimplanted into the extracted socket of second molar site. After one year, clinical and radiographic examination revealed satisfactory outcome with no signs or symptoms suggestive of pathology. In selected cases, autogenous tooth transplantation, even after complete root formation of the donor tooth, may be considered as a practical treatment alternative to conventional prosthetic rehabilitation or implant treatment.

  18. Leiomyosarcoma of the inferior vena cava.

    Science.gov (United States)

    Sulpice, L; Rayar, M; Levi Sandri, G-B; de Wailly, P; Henno, S; Turner, K; Lesimple, T; Boudjema, K; Meunier, B

    2016-06-01

    Leiomyosarcoma (LMS) of the inferior vena cava (IVC) is a rare tumor with poor prognosis. Optimal treatment includes complete resection of the malignant lesion. From 1997 to 2013, eight patients underwent surgery in our department for IVC LMS. LMS was considered to arise from the IVC if the tumor presented intraluminal development or if complete resection (R0) required removal of part of the IVC with an extraluminal mass. There were two grade 1 tumors (25%), four grade 2 (50%) and two grade 3 (25%). The median length of stay was 16 days and there were no peri-operative deaths. Median of follow-up was 56 months and mean overall survival was 120 months. Mean 3-year survival rate was 87.5%. Six patients (75%) developed a local recurrence. Four patients died from disease progression. Two patients underwent to surgery for recurrence. IVC LMS have a poor prognosis if surgical resection cannot be achieved. Long-term survival is related to an extensive surgery, in the event of recurrence, surgery should again be proposed and may be effective for controlling disease progression, possibly improving survival. Copyright © 2016. Published by Elsevier Masson SAS.

  19. Surgical management of leiomyosarcoma of the inferior vena cava.

    Science.gov (United States)

    Jiang, Hua; Wang, You-Xin; Li, Bing; Jiang, Yan-Yong; Miao, Cheng-Li; Liao, Dai-Xiang; Zhao, Rong-Hua; Luo, Cheng-Hua

    2015-06-01

    The optimal surgical management of patients with leiomyosarcoma of inferior vena cava remains a controversy. From 1975 and 2009, five patients with leiomyosarcoma of inferior vena cava were treated at the Chinese PLA General Hospital and Beijing Shijitan Hospital. The age ranged 39-61 years and the duration of symptoms ranged from 18 to 36 months. Abdominal and back pain are the most common complaints. A combination of various imaging modalities is essential for treatment planning. R0, R1, R2, and biopsy only were accomplished in 2, 1, 1, and 1 case, respectively. Combined resections included inferior vena cava, right kidney, adrenal gland, psoas, colon, duodenal, gallbladder, liver, and/or aorta, without inferior vena cava reconstruction. No inferior vena cava-related postoperative complication was seen in our series. © The Author(s) 2014 Reprints and permissions: sagepub.co.uk/journalsPermissions.nav.

  20. Prevalence of eruption status of third molars in Libyan students

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    Sujata Byahatti

    2012-01-01

    Full Text Available Background: The aim of the present study is to determine the number of third molars per person, angulation, level, amount of space for eruption of third molar between ramus of mandible and second molar and the eruption status of third molar in a group of Libyan students, with different impaction patterns and agenesis of third molars. Materials and Methods: In this descriptive retrospective study, a total of 200 students (100 male and 100 female students of bachelor of dental surgery, Faculty of Dentistry, Garyounis University, Benghazi, Libya were enrolled. Students who had complete complement of teeth within the age group 17-26 years were selected for this study, while those cases who had history of extraction of any of the teeth or who refused to give consent were excluded. Before starting the study, ethical concern from the ethical committee, IRB and informed consent from each student who underwent radiography were obtained. Results: The results showed that 5% of third molars were congenitally missing. Approximately 93.5% of the subjects had all four third molars, 1% had two third molars and 0.5% had one third molars with 2.5% having agenesis of all third molars. Third molar agenesis showed predilection for maxilla with higher proportion in females (3% than males (2.1%. Angular position was maximum with vertical position (5.83%, with least being horizontal impactions. Level of occlusal plane of third molar similar to that of adjacent tooth was seen in 44.74%, below the occlusal plane in 24.76%, totally impacted noted in 30%. Conclusion: The present study showed that 33% of the teeth were fully erupted and 66% were in various stages of eruption and 5% were congenitally missing in these students.

  1. Unusal canal configuration in maxillary and mandibular second molars

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    Ramachandran Ragunathan

    2016-01-01

    Full Text Available This clinical article describes three different case reports of maxillary and mandibular second molars with the unusual anatomy of single root with a single canal and their endodontic management. An unusual case of bilateralism is observed in the first two cases in the form of single-rooted second mandibular molars in both the quadrant of the same patient. The presence of maxillary second molar with single root and single canal in the third case is unusual.

  2. Bilateral lower second molar impaction in teenagers: An emergent problem

    OpenAIRE

    Shinohara Elio; Kaba Shajadi; Pedron Irineu; Imparato Jose

    2010-01-01

    The frequency of simultaneously impacted second and third molars in teenagers is increasing and becoming a common occurrence in adolescent oral surgery practice. The traditional treatment is the removal of the third molar by conventional access but repositioning of the surgical flap to the distal face of the first molar can predispose to complications such as pericoronitis and delayed healing of the attached gingiva. We present a case in which we use the germectomy approach to remove the impa...

  3. Intraoperative accidents associated with surgical removal of third molars

    OpenAIRE

    SEBASTIANI,Aline Monise; Todero,Sara Regina Barancelli; Gabardo,Giovana; Costa,Delson João da; Rebelatto,Nelson Luis Barbosa; Scariot, Rafaela

    2014-01-01

    Aim: To evaluate the prevalence of intraoperative accidents associated with extraction of third molars and identify possible risk factors. Methods: Prospective study with patients undergoing third molar surgery by residents of the Oral and Maxillofacial Surgery Service at the Federal University of Parana. Epidemiological data were collected from preoperative evaluation forms. During the surgical procedure were evaluated the radiographic position classifications of all third molars removed, us...

  4. The effectiveness of computerized anesthesia in primary mandibular molar pulpotomy: A randomized controlled trial.

    Science.gov (United States)

    Alamoudi, Najlaa M; Baghlaf, Khlood K; Elashiry, Eman A; Farsi, Najat M; El Derwi, Douaa A; Bayoumi, Amr M

    2016-03-01

    The technique of local anesthetic administration is an important consideration in the behavior guidance of a pediatric patient. The study hypothesized that there is no difference in the pain effectiveness in the experimental subjects with the use of single tooth anesthesia and the controls with the use of conventional technique (traditional inferior alveolar nerve block [IANB]).The purpose of this study was to compare the anesthesia effectiveness of traditional IANB; IANB using a computer-controlled local anesthetic delivery system (CCLAD); and intraligamental anesthesia (ILA) using CCLAD in pulpotomy of the primary mandibular second molars. Ninety-one healthy 5- to 9-year-old children underwent pulpotomy of the mandibular second molars. They were randomly assigned into Group A (traditional IANB), Group B (IANB using CCLAD), or Group C (ILA injection using CCLAD). The effectiveness of anesthesia was measured during different steps of pulpotomy using the sounds, eyes, and motor (SEM) scale. The postoperative complications were recorded after 24 hours. For all five pulpotomy steps, the anesthesia effectiveness was similar among the three anesthesia techniques. Anesthesia effectiveness was not significantly different (based on SEM scores) between the three groups during clamp application, drilling of the tooth, entering the pulp, pulp extirpation, and removal of the clamp (P = .635, P = .996, P = .630, P = .945, and P = .101, respectively). There was no significant difference in postoperative complications between the three groups. The IANB anesthesia using CCLAD and periodontal ligament anesthesia using CCLAD were as effective as traditional IANB in anesthetizing the primary mandibular molars during pulpotomy.

  5. Buccolingual course of the inferior alveolar canal in different mental foramen locations: A cone beam computed tomography study of an Iranian population.

    Science.gov (United States)

    Safaee, Atieh; Mirbeigi, Sanam; Ezoddini, Fatemeh; Khojastepour, Leila; Navab-Azam, Alireza

    2016-01-01

    Better understanding of the anatomical location and course of the mandibular canal is necessary to avoid damaging inferior alveolar nerve. The aim of this study was to investigate the buccolingual course of the inferior alveolar canal (IAC) in different mental foramen locations, using cone beam computed tomography. Three hundred and twelve hemimandibular images were evaluated in this study. The location of mental foramen in relation to the apices of mandibular premolar and molar teeth were recorded. Nine measurements (in millimeters) were taken at the level of the IAC and posterior mandibular premolar and molar root apices. Relative distances of IAC to buccal and lingual mandibular cortex were calculated for different mental foramen types. Data were analyzed by one-way analysis of variance and P foramen includes: Type 1 = 50.3% (at the level of second premolar apex), Type 2 = 33% (between the apices of first and second premolars), and Type 3 = 16.7% (between the apices of second premolars and first molars). The buccolingual ratio of the IAC position was statistically significant in different mental foramen types (P = 0.00). The position of IAC was affected by the location of the mental foramen. The direction of IAC gradually changed from lingual to buccal and from posterior to anterior.

  6. Inferior patellar pole fragmentation in children: just a normal variant?

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    Kan, J.H.; Vogelius, Esben S.; Orth, Robert C.; Guillerman, R.P.; Jadhav, Siddharth P. [Texas Children' s Hospital, E.B. Singleton Pediatric Radiology, Houston, TX (United States)

    2015-06-15

    Fragmentary ossification of the inferior patella is often dismissed as a normal variant in children younger than 10 years of age. The purpose of this study was to determine whether fragmentary inferior patellar pole ossification is a normal variant or is associated with symptoms or signs of pathology using MRI and clinical exam findings as reference. A retrospective review was performed on 150 patients ages 5-10 years who underwent 164 knee radiography and MRI exams (45.1% male, mean age: 7.8 years). The presence or absence of inferior patellar pole fragmentation on radiography was correlated with the presence or absence of edema-like signal on MR images. Clinical notes were reviewed for the presence of symptoms or signs referable to the inferior patellar pole. These data were compared with a 1:1 age- and sex-matched control group without inferior pole fragmentation. Statistical analysis was performed using two-tailed t-tests. Forty of 164 (24.4%) knee radiographs showed fragmentary ossification of the inferior patella. Of these 40 knees, 62.5% (25/40) had edema-like signal of the inferior patellar bone marrow compared with 7.5% (3/40) of controls (P = 0.035). Patients with fragmentary ossification at the inferior patella had a significantly higher incidence of documented focal inferior patellar pain compared with controls (20% vs. 2.5%, P = 0.015). Inferior patellar pole fragmentation in children 5 to 10 years of age may be associated with localized symptoms and bone marrow edema-like signal and should not be routinely dismissed as a normal variant of ossification. (orig.)

  7. Estudio in vitro del grado de filtración marginal de materiales selladores provisionales: ketac molar, ionoseal, irm, clip f y coltosol en dientes bicuspídeos sometidos a termociclaje

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    Giomara Catherine Silva Tapia

    2015-12-01

    Full Text Available En el presente trabajo 225 piezas fueron utilizadas; se les dividió en tres grupos: el primer grupo consistió en piezas obturadas endodónticamente, el segundo grupo fueron piezas instrumentadas pero sin obturación endodóntica, y el tercer grupo de piezas que solamente fueron instrumentadas pero que en su interior se colocó una torunda de algodón y un cono de papel con dimetilglioxima. A su vez cada uno de los grupos se los dividió en 5 sub grupos y en su corona se colocaron los 5 materiales: Irm, Ketac molar, Ionoseal, Clip F, Coltosol. Se sometieron dichas piezas a diferentes cambios de temperatura 5°C, 37°C y 55°C cada 5 minutos en un número de 84 ciclos, las piezas fueron impermeabilizadas después de lo cual se colocó al primero y segundo grupo inmersos en azul de metileno al 2% y el tercer grupo en sulfato de níquel al 5%, todas ellas a 37 grados centígrados por 24 horas. Todas las piezas fueron divididas y se midió el grado de filtración con un USB digital microscopio. Con base al estudió estadístico Kruskal Wallis mostró que la menor filtración se dió en el siguiente orden: Clip F, Ionoseal, Ketac Molar, Coltosol e Irm.

  8. Second molar impaction associated with lip bumper therapy.

    Science.gov (United States)

    Jacob, Helder Baldi; LeMert, Shawn; Alexander, Richard G; Buschang, Peter H

    2014-01-01

    Although lip bumpers (LBs) provide significant clinical gain of mandibular arch perimeter in mixed-dentition patients, orthodontists are reluctant to use them due to the possibility of permanent second molar eruptive disturbances. The present study was conducted to assess second molar impaction associated with the use of LBs, and to investigate how they can be solved. Lateral and panoramic radiographs of 67 patients (34 females and 33 males) were assessed prior (T₁) and post-LB treatment (T₂). LB therapy lasted for approximately 1.8 ± 0.9 years. Concomitant rapid palatal expansion (RPE) was performed in the maxilla at LB treatment onset. Impaction of mandibular second molars was assessed by means of panoramic radiographs in relation to the position of first mandibular molars. Horizontal and vertical movements of first and second molars were assessed cephalometrically on lateral cephalometric radiographs based on mandibular superimpositions. Eight (11.9%) patients had impacted second molars at the end of LB therapy. Two patients required surgical correction, whereas five required spacers and one patient was self-corrected. Mandibular first molar tip and apex migrated forward 1.3 mm and 2.3 mm, respectively. Second molar tip showed no statistically significant horizontal movement. Although LB therapy increased the risk of second molar impaction, impactions were, in most instances, easily solved.

  9. Second molar impaction associated with lip bumper therapy

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    Helder Baldi Jacob

    2014-12-01

    Full Text Available INTRODUCTION: Although lip bumpers (LBs provide significant clinical gain of mandibular arch perimeter in mixed-dentition patients, orthodontists are reluctant to use them due to the possibility of permanent second molar eruptive disturbances.OBJECTIVE: The present study was conducted to assess second molar impaction associated with the use of LBs, and to investigate how they can be solved.MATERIAL AND METHODS: Lateral and panoramic radiographs of 67 patients (34 females and 33 males were assessed prior (T1 and post-LB treatment (T2. LB therapy lasted for approximately 1.8 ± 0.9 years. Concomitant rapid palatal expansion (RPE was performed in the maxilla at LB treatment onset. Impaction of mandibular second molars was assessed by means of panoramic radiographs in relation to the position of first mandibular molars. Horizontal and vertical movements of first and second molars were assessed cephalometrically on lateral cephalometric radiographs based on mandibular superimpositions.RESULTS: Eight (11.9% patients had impacted second molars at the end of LB therapy. Two patients required surgical correction, whereas five required spacers and one patient was self-corrected. Mandibular first molar tip and apex migrated forward 1.3 mm and 2.3 mm, respectively. Second molar tip showed no statistically significant horizontal movement.CONCLUSION: Although LB therapy increased the risk of second molar impaction, impactions were, in most instances, easily solved.

  10. Epidemiological Status of Third Molars in an Iranian Population

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    Mahnaz Sheikhi

    2016-07-01

    Full Text Available Background Impaction of third molars is a common phenomenon. The incidence of impacted third molars varies in different populations. Objectives The aim of this study is to assess radiographic status (root development degree, angulation, and eruption level of the third molar in Iranian population via panoramic radiographs. Patients and Methods 647 patients, ranging in age from 17 - 25, were selected from three regions of Iran. Based on their panoramic radiographs, their root development degree, angulation, and eruption levels were analyzed. Results The angulation of upper third molars were vertical (44.6%, distoangular (44.1%, mesioangular (10.7%, and horizontal (0.6%. For lower third molars, the angulation was mesioangular (44.5%, vertical (33.8%, distoangular (12.2%, and horizontal (9.5%. The eruption levels of maxillary third molars were C > A> B, and for mandibular third molars they were A > B> C. The order of root development prevalence of the maxillary and mandibular third molars was complete > 2/3 > 1/3. Conclusions The most common status of impaction of the third molars in the maxilla was vertical angulation, level C of eruption, and complete root formation. In the mandible it was mesioangular, level A of eruption, and complete root formation. Since the study sample consists of patients from the north, middle, and south of Iran, the sample can represent the whole population of Iran.

  11. Periodontal Healing Distally to Second Mandibular Molar After Third Molar Coronectomy.

    Science.gov (United States)

    Vignudelli, Elisabetta; Monaco, Giuseppe; Gatto, Maria Rosaria Antonella; Franco, Simonetta; Marchetti, Claudio; Corinaldesi, Giuseppe

    2017-01-01

    Coronectomy of mandibular third molars is a procedure that still raises a number of questions. The aim of the present study was to answer one unsolved question: the periodontal healing distal to the mandibular second molar after third molar coronectomy. A prospective cohort study was performed of 30 patients treated at the Unit of Oral and Maxillofacial Surgery of the Department of Biomedical and Neuromotor Science of the University of Bologna. The predictor variables were the probing pocket depth (PPD), the distance between the marginal crest (MC) and the bottom of the osseous defect (BOD), and the distance between the cementum enamel junction (CEJ) and the BOD. These clinical indexes were recorded on 3 points of the distal surface of second molar: the distobuccal (DB), distomedial (DM), and distolingual (DL) sites. The other variables evaluated included root migration and postoperative complications. The Wilcoxon test for paired data and Kendall's tau-b correlation coefficient was used to evaluate all variables. The significance level was set at P = .05. The cohort was composed of 30 patients with 34 high-risk mandibular third molars (9 men and 21 women), with a mean age of 28 ± 7 years. At 9 months, a statistically significant reduction in the PPD of 2 ± 3, 1 ± 2, and 2 ± 2 mm and a statistically significant reduction in the MC-BOD distance of 4 ± 4, 4 ± 4, and 4 ± 5 mm for the DB, DM, and DL sites, respectively, was observed (P = .001). Also, the intraoperative CEJ-BOD distance showed a statistically significant reduction for the DB, DM, and DL sites. After coronectomy, restoration of a clinical healthy periodontium distal to the second molar was observed. However, further studies are necessary to confirm these preliminary clinical results and to compare periodontal healing between coronectomy and complete extraction. Copyright © 2016 American Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved.

  12. Second molar periodontal inflammatory disease after third molar removal in young adults.

    Science.gov (United States)

    Dicus, Carolyn; Blakey, George H; Faulk-Eggleston, Jan; Hoverstad, Eric; Offenbacher, Steven; Phillips, Ceib; White, Raymond P

    2010-12-01

    To assess the prevalence of periodontal inflammatory disease on the distal side of second molars after third molar removal and the association between presurgical and surgical variables and postsurgical periodontal outcomes. Data before and after surgery from 2 studies approved by an institutional review board were used. In 1 study, 26 subjects had 4 asymptomatic third molars and in the other 49 subjects had at least 1 mandibular third molar with symptoms of pericoronitis. Full-mouth periodontal probing data, 6 sites per tooth, were obtained as a measurement of periodontal status before and after surgery. A probing depth (PD) ≥4 mm on either of the 2 possible probing sites on the distal side of any second molar (D2M) served as an indicator of periodontal inflammatory disease; periodontal health was defined as all D2M PD <4 mm. Cochran-Mantel-Haenszel row mean score tests compared the subjects' postsurgical periodontal status (all D2M PD <4 mm and at least 1 D2M PD ≥4 mm) with respect to age and time intervals, and the Fisher exact test was used to compare ethnicity, gender, and clinical data at surgery. The McNemar test was used to assess the discordance between subjects' pre- and postsurgical periodontal status. The level of significance was set at .05. Of the 75 subjects, 52% were women and 65% were white. The median age at surgery was 23.6 years (interquartile range, 20.9 to 26.6 years). At enrollment, 53 of 75 subjects (71%) had at least 1 D2M PD ≥4 mm. Subjects were significantly more likely to have an improved D2M periodontal status after surgery than a deteriorated status (P < .01). Fewer subjects, 17 of 75 (24%), had at least 1 D2M PD ≥4 mm after surgery. D2M PD ≥4 mm was more likely after surgery if presurgical D2M was PD ≥4 mm (P < .01). Gender, ethnicity, age, presurgical symptoms, and data estimating the extensiveness of surgery were not significantly associated with postsurgical D2M periodontal outcomes. After third molar removal

  13. Adjacent dentigerous cysts with the ectopic displacement of a third mandibular molar and supernumerary (forth) molar: a rare occurrence.

    Science.gov (United States)

    McCrea, Shane

    2009-06-01

    Dentigerous cysts are the most common odontological cysts of the jaws, being associated with the crowns of permanent teeth, especially unerupted mandibular third molars. Multiple dentigerous cysts are rare and most often occur in association with a developmental syndrome. This article presents an unusual case of nonsyndromic adjacent dentigerous cysts associated with a mandibular third molar and a supernumerary molar. This occurrence has not been previously reported.

  14. Ceramic onlay for endodontically treated mandibular molar

    Directory of Open Access Journals (Sweden)

    Roopadevi Garlapati

    2014-01-01

    Full Text Available Restoration of endodontically treated teeth is important for the success of endodontic treatment. In full coverage restorations, maximum amount of tooth structure is compromised, so as to conserve the amount of tooth structure partial coverage restorations, can be preferred. This case report is on fabrication of a conservative tooth colored restoration for an endodontically treated posterior tooth. A 22-year-old male patient presented with pain in the mandibular left first molar. After endodontic treatment, composite material was used as postendodontic restoration. The tooth was then prepared to receive a ceramic onlay and bonded with self-adhesive universal resin cement. Ceramic onlay restoration was periodically examined up to 2 years.

  15. Má oclusão Classe I de Angle tratada com extrações de primeiros molares permanentes Angle Class I malocclusion treated with extraction of first permanent molars

    Directory of Open Access Journals (Sweden)

    Ivan Tadeu Pinheiro da Silva

    2010-08-01

    Full Text Available A má oclusão Classe I de Angle é caracterizada por uma relação anteroposterior normal nos molares, que pode ou não estar acompanhada por alterações esqueléticas - nos planos vertical ou transverso - ou dentárias. A biprotrusão, revelada pela inclinação acentuada dos incisivos superiores e inferiores para vestibular, somada ao trespasse horizontal excessivo, faz com que o paciente fique mais exposto a traumas dentários, além de causar comprometimento estético. A escolha dos dentes a serem extraídos para a correção, geralmente, recai sobre os primeiros ou segundos pré-molares, devido à sua posição na arcada. Contudo, a extração do primeiro molar permanente, em função de algum comprometimento, por cárie ou restauração extensa, pode ser uma alternativa, proporcionando a manutenção de um dente hígido em detrimento de outro já manipulado. O presente caso, tratado de maneira incomum, pela extração dos quatro primeiros molares permanentes, foi apresentado à Diretoria do Board Brasileiro de Ortodontia e Ortopedia Facial (BBO, representando a categoria 2, como parte dos requisitos para a obtenção do título de diplomado pelo BBO.Angle Class I malocclusion is characterized by normal anteroposterior molar relationship, which may or may not be accompanied by skeletal changes-in the vertical or transverse planes-or dental changes. Bimaxillary dental protrusion, characterized by pronounced labial inclination of maxillary and mandibular incisors combined with excessive overjet, expose patients to dental trauma and compromise aesthetics. In deciding which teeth to extract for Class I correction the first or second premolars are usually selected due to their location in the dental arch. However, the extraction of a first permanent molar compromised by caries or extensive restoration may be an alternative that ensures the preservation of a healthy tooth instead of one that has already been manipulated. This case, treated in

  16. Más allá del tercer mundo: Globalidad imperial, colonialidad global y movimientos sociales anti-globalización

    Directory of Open Access Journals (Sweden)

    Arturo Escobar

    2004-04-01

    Full Text Available La creciente comprensión de que existen problemas modernos para los cuales no hay soluciones modernas apunta hacia la necesidad de moverse más allá del paradigma de la modernidad y, por tanto, más allá del Tercer Mundo. La imaginación del después del Tercer Mundo ocurre con dos procesos centrales como telón de fondo: Primero, el surgimiento de una nueva forma de globalidad imperial, impulsada por los Estados Unidos, un orden económico-militar-ideológico que subordina regiones, pueblos y economías en todo el mundo; la globalidad imperial tiene su lado oculto en lo que puede ser denominado, siguiendo un grupo de investigadores latinoamericanos, colonialidad global, esto es, el aumento de la marginalización y supresión del conocimiento de los grupos subaltenos. El segundo proceso social es la emergencia de redes de movimientos sociales auto-organizadas que operan bajo una nueva lógica, fomentando formas de globalización contra-hegemónicas. Es argumentado que en tanto se articulan con las políticas de la diferencia, particularmente a través de estrategias políticas basadas-en-lugar aunque trasnacionalizadas, estos movimientos representan la mejor esperanza para re-elaborar la globalidad imperial y la colonialidad global en formas que hagan de la imaginación del después del Tercer Mundo, y del más allá de la modernidad, un proyecto viable.

  17. Presence of third molars in orthodontic patients from northern Greece

    Directory of Open Access Journals (Sweden)

    Barka G

    2012-05-01

    Full Text Available Georgia Barka,1 Georgios Tretiakov,1 Theodosios Theodosiou,2 Ioulia Ioannidou-Marathiotou31School of Dentistry, 2Biostatistics, Department of Informatics, School of Natural Sciences, 3Department of Orthodontics, School of Dentistry, Aristotle University of Thessaloniki, Thessaloniki, GreeceObjective: The purpose of the present study was to investigate the frequency of presence of third molar teeth and their distribution in each jaw and each side, according to sex, in a group of orthodontic patients with permanent dentition from northern Greece.Methods: The sample included panoramic radiographs from 220 patients with permanent dentition (mean age 13.62 ± 1.81. The Χ2 test was used to assess the relationships between the variables, and the Fisher's exact test was used in cases where the expected frequencies in each cell were <5.Results: The frequency of third molar presence was 79.1%, and 20.9% was the frequency of third molar agenesis. Intersexual differences in the number of third molars was not statistically significant. There was a correlation between the distribution of third molars on the right and the left side (Fisher's exact test = 100.788; P = 0. The two sides showed the same tendency toward the presence or absence of third molars. A correlation was also found between the distribution of maxillary and mandibular third molars (Fisher's exact test = 24.372; P = 0. In each jaw, the presence or absence of third molars was highly related to the number of third molars found in the other jaw.Conclusion: The present results showed that in this orthodontic group of northern Greek patients, presence accounted for 79.1% and agenesis for 20.9%. No significant difference was found between the frequencies of third molar presence on the left and right sides in either the maxilla or mandible.Keywords: third molars, presence, orthodontic population, Greeks

  18. Two-year results of vital pulp therapy in permanent molars with irreversible pulpitis: an ongoing multicenter randomized clinical trial.

    Science.gov (United States)

    Asgary, Saeed; Eghbal, Mohammad Jafar; Ghoddusi, Jamileh

    2014-01-01

    Oral healthcare expenses are increasing rapidly as a result of the growth of high-cost health technologies worldwide. In many developing/developed countries, low-cost tooth extraction is the alternative treatment option for a high-cost root canal therapy (RCT) for management of human molars with irreversible pulpitis. Vital pulp therapy with calcium-enriched mixture cement (VPT/CEM) as a new alternative treatment option has demonstrated excellent treatment outcomes up to 1 year; if 2-year radiographic/clinical effectiveness as well as cost-effectiveness of the VPT/CEM is also non-inferior compared with RCT, it can serve as a viable treatment for mature molars with irreversible pulpitis. In this prospective, multicenter (n = 23), non-inferiority clinical trial, 407 patients were randomized to either one-visit RCT (n = 202) or VPT/CEM (n = 205) for 27 months. In this part of study, the primary outcome measure was the 2-year clinical and radiographic treatment outcomes. Cost-effectiveness was also analyzed. Mean follow-up times were 24.62 ± 0.72 and 24.61 ± 0.69 months in RCT (n = 166) and VPT/CEM (n = 166) arms, respectively. Clinical success rates in the two study arms were equal (98.19%); however, radiographic success rates were 79.5 and 86.7% in RCT and VPT/CEM arms, respectively, with no statistical difference (P = 0.053). The treatment time span mean was approximately three times greater in the RCT than in the VPT/CEM arm (94.07 vs. 31.09 min; P irreversible pulpitis. Vital pulp therapy with CEM is a cost-effective and reliable biological technique for endodontic treatment of permanent molar teeth with irreversible pulpitis and can be recommended for general clinical practice.

  19. Gracias a la vida, Trío para un nuevo tiempo y el tercer período compositivo de Celso Garrido-Lecca

    OpenAIRE

    Niño Vásquez,Nelson

    2015-01-01

    Celso Garrido-Lecca divide su producción musical en tres grandes períodos. El Trío para un Nuevo Tiempo fue compuesto en 1985 para un trío clásico (violín, violonchelo y piano). Marca el inicio de su tercer período compositivo, fase en la que él logra sintetizar toda su vasta experiencia como compositor. A lo largo de los tres movimientos de este trío es posible encontrar variadas influencias musicales, incluyendo citas de Gracias a la vida (1966) de Violeta Parra en el segundo movimiento, as...

  20. Prevalencia de desgaste profesional en personal de enfermería de un hospital de tercer nivel de Boyacá, Colombia

    OpenAIRE

    Álvarez Verdugo, Lina Patricia; Prieto Bocanegra, Brigitte Migdolia

    2013-01-01

    Objetivo: Determinar el grado de desgaste profesional en el personal de Enfermería de un hospital de tercer nivel de Tunja, Boyacá, Colombia durante los meses de Enero a Febrero del año 2012. Método: Estudio de corte transversal con 22 profesionales del hospital utilizando el MBI (Inventario para Burnout de Maslach). Se analizó la información en el programa SPSS versión 19, buscando correlaciones de Spearman y Pearson para las variables sociodemográficas relacionadas con el Síndrome de Bur...

  1. MODELO DE ADMINISTRACIÓN POR PROCESOS PARA EL SERVICIO DE CIRUGÍA GENERAL DE UN HOSPITAL DE TERCER NIVEL (CASO HG-1 QUITO).

    OpenAIRE

    Hidrobo Ortiz, Carlos Adolfo

    2009-01-01

    111 hojas : ilustraciones, 29 x 21 cm + CD-ROM 2675 "Con el diseño de un modelo de administración por procesos para el Servicio de Cirugía General de un Hospital de tercer nivel (Caso HG-1 Quito), los directivos dispondrán de una herramienta que facilitará el proceso de cambio del sistema de gestión empresarial de salud." Se presenta el diagnóstico situacional, el mismo que se centró en las siguientes fortalezas: Diversidad de técnicas quirúrgicas laparoscópicas; disponibilidad de perso...

  2. La semana saludable en Segovia: un estudio sobre sus beneficios y límites en tercer y cuarto curso de Primaria y cómo superarlos

    OpenAIRE

    Fraile Gallegos, Cayetana

    2017-01-01

    Los malos hábitos alimenticios están provocando serios problemas de salud en la población española y, para evitarlo, la administración pública ha puesto en marcha diversos programas orientados a crear hábitos alimenticios saludables. Entre ellos se encuentra la Semana Saludable, una campaña anual que se realiza en los centros educativos de Educación Primaria de Castilla y León. En este trabajo se analiza su materialización en tercer y cuarto curso en cuatro centros escolares ubicados en Segov...

  3. El tercer sector desde la teoría económica del non-profit organizations. Contenidos y limitaciones

    OpenAIRE

    Sajardo, Antonia; Chaves, Rafael

    1995-01-01

    En este trabajo se abordan sucesivamente las siguientes cuestiones. En primer lugar se estudia el criterio definitorio utilizado desde este enfoque que permite identificar y delimitar al Tercer Sector, en este caso Non-profit Sector. A continuación se analizan las principales construcciones teóricas que han sido edificadas para justificar la aparición de este sector y para estudiar sus roles económicos en nuestras economías. Finalmente, por un lado, se destacan las principales limitaciones ex...

  4. Organizaciones del tercer sector: análisis general de la publicidad de la "Fundación UNAM, A. C.", México

    OpenAIRE

    Paola Grisel García Santillán

    2008-01-01

    Nos proponemos en este ensayo, dar al lector un breve panorama general sobre el origen, razón de ser y funcionamiento de las organizaciones del tercer sector. Además, cómo éstas utilizan el marketing con causa y con fines sociales, enfocando el trabajo al inicio y formación de las fundaciones dentro de la educación superior en el caso de la Fundaci ón UNAM, A.C., y el uso de su publicidad con causa a través de los medios impresos y de difusión, que utilizan con la finalidad ...

  5. La experiencia de estar hospitalizado en una unidad de cuidados intensivos coronarios de una clínica de tercer nivel del distrito de Barranquilla

    OpenAIRE

    Santiago de Castro, Ernestina

    2013-01-01

    Objetivo: Describir la experiencia de los pacientes hospitalizados en la Unidad de Cuidado Intensivo Coronario de una Clínica de Tercer Nivel del Distrito de Barranquilla. Metodología: Estudio cualitativo fenomenológico, utilizando el método de Colaizzi en el que se entrevistaron 9 participantes entre los 59 y 74 años, hospitalizados inicialmente en la Unidad de Cuidado Intensivo Coronario con un diagnóstico de Infarto Agudo del Miocardio y en el momento de realizar la entrevista se encontrab...

  6. Bullying escolar e ideación suicida en los estudiantes del tercer año de secundaria de instituciones educativas públicas, Tacna, 2015.

    OpenAIRE

    Quenta Condori, Lourdes

    2015-01-01

    La presente investigación tiene el objetivo principal de determinar si existe relación entre el bullying escolar e ideación suicida en los estudiantes del tercer año de secundaria de instituciones educativas públicas, Tacna 2015. Se trata de un estudio tipo descriptivo correlacional, no experimental de corte transversal. Los instrumentos utilizados para la recolección de datos fueron la escala de situaciones de acoso escolar de Cisneros, que evalúa los cuatro tipos de bullying: físico, psicol...

  7. Burnout, liderazgo y satisfacción laboral en el personal asistencial de un hospital de tercer nivel en Bogotá

    OpenAIRE

    Françoise Contreras Torres; Leonardo Espinal G.; Ana María Pachón E.; Javier González R.

    2013-01-01

    El propósito de este estudio fue identificar la presencia del Síndrome de Burnout, los estilos de liderazgo y la satisfacción laboral de los profesionales asistenciales de un hospital de tercer nivel y observar su relación, considerando variables sociodemográficas. Para ello, se utilizó el MBI, el TAP y el Test de Satisfacción Laboral S20/23, respectivamente. De acuerdo con los resultados, se encontró baja presencia de Burnout y altos niveles de realización personal, a pesar de las condicione...

  8. PREVALENCIA DE COLONIZACION POR STREPTOCOCCUS AGALACTIAE (GRUPO B) EN EL TERCER TRIMESTRE DEL EMBARAZO PESQUISADO EN MEDIO DE CULTIVO NO SELECTIVO

    OpenAIRE

    Valdés R,Enrique; Pastene S,Carolina; Masumi Grau,T; Catalán M,Jorge; Candia P,Paula; Juarez D,Guido; Caballero T,Rafael

    2003-01-01

    El Streptococcus agalactiae es el principal agente bacteriano responsable de sepsis neonatal. Para evitar la infección perinatal se recomienda la pesquisa de la bacteria en región vagino-perianal durante el tercer trimestre, indicando tratamiento antibiótico durante el parto en aquellas gestantes colonizadas. La prevalencia de colonización varía según el tipo de cultivo utilizado (selectivo vs no selectivo). El objetivo de este estudio es conocer la prevalencia de colonización del Streptococc...

  9. Resistencia y susceptibilidad de microorganismos aislados en pacientes atendidos en una institución hospitalaria de tercer nivel, Villavicencio-Colombia, 2012

    OpenAIRE

    Oscar Alexander Gutiérrez Lesmes

    2015-01-01

    Introducción: La resistencia bacteriana es problema significativo de salud pública y está asociada al uso indiscriminado e irracional de antibióticos, lo que afecta la eficacia de los tratamientos. Objetivo: Estimar la resistencia antimicrobiana a los antibióticos resultado de las pruebas invitro de susceptibilidad en una institución hospitalaria de tercer nivel de Villavicencio, Colombia. Materiales y Métodos: Se realizó un estudio observacional, descriptivo de tipo retrospectivo, análisis u...

  10. Convergencia y análisis numérico de un método de tercer orden para sistemas de ecuaciones no lineales

    OpenAIRE

    Amat Plata, Sergio; Bermúdez Edo, María Concepción; Busquier Sáez, Sonia; Manzano García, Fernando

    2007-01-01

    A lo largo de la Historia la resolución de ecuaciones no lineales ha preocupado a gran cantidad de científicos. Hoy en día, con los adelantos tecnológicos, estas ecuaciones son aproximadas de forma eficiente por medio de métodos iterativos. La idea es generar una sucesión de aproximaciones x0, x1, x2, ... que bajo ciertas condiciones converge a la raíz deseada. En este trabajo, presentamos una extensión a espacios de Banach de un método de tercer orden recientemente presentado en el cas...

  11. Áreas homogéneas de tercer orden aplicadas al piso cálido de la cuenca del río Bogotá

    OpenAIRE

    Jaramillo Jaramillo,Daniel Francisco

    1987-01-01

    En el presente trabajo el autor quiere exponer, en forma resumida, la metodología general para delimitar unidades de tierra homogéneas, enfatizando la parte correspondiente a las áreas homogéneas de tercer orden (las más generales), así como algunos de los resultados obtenidos en el piso cálido de la cuenca del río Bogotá, para dichas áreas homogéneas; también, se actualiza la bibliografía referente al tema, al citar los principales trabajos que al respecto se han realizado, posteriores al tr...

  12. Estudio de la organización celular y capacidad proliferativa en el tercer ventrículo de mamíferos adultos.

    OpenAIRE

    Durán Moreno, María

    2016-01-01

    Los tanicitos son células epiteliales que tapizan el tercer ventrículo del cerebro y envían un proceso basal hacia los núcleos neuronales hipotalámicos implicados en la regulación de diversas funciones endocrinas. Ese proceso basal le confiere apariencia de glía radial, célula de la que procede, contactando con la piamadre y capilares fenestrados. En el cerebro de ratón adulto, los tanicitos hipotalámicos, quiescentes en condiciones basales, proliferan in vitro e in vivo tras administración d...

  13. Eficácia da articaína, da bupivacaína e da lidocaína associadas à epinefrina em pacientes com pulpite irreversível em molares mandibulares

    OpenAIRE

    Roberta Moura Sampaio

    2015-01-01

    O objetivo deste estudo foi comparar a eficácia anestésica da articaína 4%, da lidocaína 2%, ambas associadas à epinefrina 1:100.000, e da bupivacaína 0.5%, associada à epinefrina 1:200.000, durante pulpectomia em pacientes com pulpite irreversível em molares inferiores. Cento e cinco voluntários do Setor de Urgência da Faculdade de Odontologia da Universidade de São Paulo receberam, aleatoriamente, 3,6mL de um dos anestésicos locais para o convencional bloqueio do nervo alveolar inferior (BN...

  14. MDCT of inferior mesenteric vein: normal anatomy and pathology

    Energy Technology Data Exchange (ETDEWEB)

    Akpinar, E.; Turkbey, B. [Department of Radiology, Hacettepe University School of Medicine, Ankara (Turkey); Karcaaltincaba, M. [Department of Radiology, Hacettepe University School of Medicine, Ankara (Turkey)], E-mail: musturayk@yahoo.com; Karaosmanoglu, D.; Akata, D. [Department of Radiology, Hacettepe University School of Medicine, Ankara (Turkey)

    2008-07-15

    Multidetector computed tomography (MDCT) is a useful technique for imaging the inferior mesenteric vein. The aim of the present review was to discuss the normal anatomy and the pathologies of the inferior mesenteric vein, including partial or total thrombosis secondary to inflammation (pyophlebitis) and malignancy, occlusion, dilatation and reversed flow, which are rarely encountered. Optimal reconstruction techniques are also discussed. The pathologies of the inferior mesenteric vein can be clearly demonstrated using MDCT using curved-planar reformatted multiplanar reconstruction (MPR) and minimum intensity projection (MIP) images.

  15. Shear bond strength evaluation of bonded molar tubes on fluorotic molars.

    Science.gov (United States)

    Silva-Benítez, Erika L; Zavala-Alonso, Veronica; Martinez-Castanon, Gabriel A; Loyola-Rodriguez, Juan P; Patiño-Marin, Nuria; Ortega-Pedrajo, Irene; García-Godoy, Franklin

    2013-01-01

    To study the shear bond strength (SBS), sites of failure, and micromorphology of bonded molar tubes used on teeth affected by dental fluorosis. This in vitro study included 140 first molars classified according to Dean's index for dental fluorosis. Samples were divided into seven groups: (1) healthy teeth etched for 15 seconds, (2) teeth with moderate fluorosis (MOF) etched for 15 seconds, (3) teeth with MOF etched for 150 seconds, (4) teeth with MOF microabrasion etched for 15 seconds, (5) teeth with severe fluorosis (SEF) etched for 15 seconds, (6) teeth with SEF etched for 150 seconds, and (7) teeth with SEF microabrasion etched for 15 seconds. All samples were incubated and were then submitted to the SBS test and evaluated with the modified adhesive remnant index (ARI) and analyzed by using a scanning electronic microscope. The SBS mean value for healthy enamel was 20 ± 10.2 MPa. For the group with MOF, the etched 150-second mean value was the highest (19 ± 7.6 MPa); for the group with SEF treated with microabrasion and etched for 15 seconds, the mean value was (13 ± 4.1 MPa). Significant differences (P ≤ .05) were found in the ARI between healthy and fluorosed groups. Fluorotic enamel affects the adhesion of bonded molar tubes. The use of overetching in cases of MOF and the combination of microabrasion and etching in SEF provides a suitable adhesion for fixed appliance therapy.

  16. Histomorphometric evaluation of maxillary molar roots and surrounding periodontium following molar intrusion in rats.

    Science.gov (United States)

    Choi, Y J; Kim, K H; Lee, K J; Chung, C J; Park, Y C

    2015-02-01

    To investigate periodontal tissue changes during and after molar intrusion in rats. The Department of Orthodontics at Yonsei University. Thirty 12-week-old male rats were assigned to 1 control and 5 experimental groups (n = 5 each). In the experimental groups, two maxillary molars were intruded for 2 weeks; the control group underwent the same procedures without the intrusion force. After 2 weeks of intrusion, rats in one of the experimental groups and in the control group were killed. In the other four experimental groups, the new molar positions were either retained or not retained with an occlusal bite block for 1 or 2 weeks prior to euthanization. Histomorphometric analysis was performed for sulcus depth, osteoclast number per unit alveolar bone length, and root resorption area per unit root surface length. Sulcus depth increased during intrusion (P intrusion (P intrusion, irrespective of the retention regimen, relative to that of the control group (P intrusion and that the surrounding periodontium remodeled accordingly as tooth positions were altered, regardless of retention regime. © 2014 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

  17. Procesos cognoscitivos implicados en la comprensión lectora en tercer grado de educación primaria

    Directory of Open Access Journals (Sweden)

    Patricia Torres Morales

    2014-07-01

    Full Text Available La comprensión lectora requiere de la interacción de diversos procesos cognoscitivos: atención, percepción, memoria y conciencia fonológica; estos procesos permiten detectar dificultades en el desarrollo cognoscitivo infantil. El objetivo de este artículo de investigación fue describir la relación entre el desempeño de la comprensión lectora y la precisión y velocidad de la lectura, así como con procesos cognoscitivos como la atención, percepción, memoria y conciencia fonológica en niños de tercer grado de educación primaria de Xalapa, Veracruz. Se evaluaron 26 niños (13 masculinos, 13 femeninos con edad promedio de 8 años y 8 meses (DE+ 8 meses a través de la Evaluación Neuropsicológica Infantil (ENI en las áreas de lectura, percepción visual/auditiva, atención visual/auditiva, memoria visual/auditiva y conciencia fonológica. La precisión y velocidad de la lectura así como la conciencia fonológica favorecen al buen rendimiento de la comprensión lectora. Abstract Reading comprehension requires the interaction of different cognitive processes: attention, perception, memory and phonological awareness; these processes allow detecting difficulties in child cognitive development. The objective of this research paper was to describe the relationship between the performance of reading comprehension and the precision and speed of reading, as well as cognitive processes like attention, perception, memory and phonological awareness in children from third grade of primary education of Xalapa, Veracruz. 26 children (13 male, 13 female with an average age of 8 years and 8 months (8 months were evaluated. The children neuropsychological assessment (ENI was aplicadad in the areas of reading, visual and auditory perception, visual and auditory attention, visual/auditory memory and phonological awareness. The accuracy and speed of reading and phonological awareness favor the good performance of reading comprehension.

  18. El papel docente ante las emociones de niñas y niños de tercer grado

    Directory of Open Access Journals (Sweden)

    Mónica Calderón Rodríguez

    2014-01-01

    Full Text Available En este artículo se presentan los resultados de una investigación realizada durante los años 2011-2012, cuyo objetivo fue analizar el papel del personal docente ante las emociones que manifiestan en el aula las niñas y los niños de tercer grado de dos escuelas urbanas de la provincia de San José. La investigación se fundamenta en la identificación de los conocimientos, habilidades, estrategias y recursos utilizados por el personal docente ante las diferentes emociones que manifiesta el estudiantado en el aula. La metodología de la investigación se dio bajo un enfoque mixto, por lo que el trabajo se dividió en una fase cualitativa y otra cuantitativa; en cada una se aplicaron diferentes instrumentos con base en los objetivos de la investigación; posteriormente se realizó una integración de ambos enfoques, para ampliar la perspectiva de las respuestas del personal docente ante las emociones que experimentan las niñas y los niños en el aula. A partir de los resultados obtenidos se identifican elementos facilitadores y obstaculizadores del quehacer docente, sobre las emociones de sus estudiantes y se logra constatar una deficiencia en el profesional en educación en cuanto al conocimiento de la temática, la falta de estrategias aplicables a las emociones de sus estudiantes, la poca información y actualización que se tiene en cuanto a la educación emocional en las aulas. This article presents the results of a research conducted over the years 2011-2012, in which the role of teachers in the face of the emotions felt in the classroom by third graders in two urban schools of the province of San José was analyzed. The research was based on the identification of the knowledge, skills, strategies and resources used by teachers as a response to different emotions that children manifest in the classroom.. The research methodology was developed under a mixed approach, therefore it was divided in a qualitative and a quantitative phase. In

  19. Prevalencia de úlceras por presión en un hospital de tercer nivel, en México DF

    Directory of Open Access Journals (Sweden)

    J. Eduardo Barrera Arenas

    Full Text Available Objetivo: Identificar la prevalencia de úlceras por presión (UPP en los pacientes hospitalizados, determinar la puntuación de riesgo de UPP que presentan mediante la escala de Braden y describir las características de los pacientes y las lesiones (origen, localización y categoría. Metodología: Estudio descriptivo, transversal, que incluyó a 767 pacientes hospitalizados de una institución de tercer nivel que atiende a población sin derecho a la seguridad social. Todos los pacientes fueron valorados por un grupo de expertos en heridas. Para la identificación del riesgo se empleó la escala de Braden y la escala Braden Q para los niños menores de 5 años; posteriormente, fueron explorados físicamente y se identificó a los que presentaron UPP. Para el análisis se utilizaron frecuencias, porcentajes, medias y desviación estándar. Para la correlación V de Cramer se empleó SPSS versión 22.0. Resultados: Se valoraron 691 pacientes con la escala Braden y 74 con la escala Braden Q. Un total de 89 pacientes presentaron UPP. La prevalencia general puntual fue del 11,60%; por etapa de la vida, la prevalencia fue del 10,1% en neonatos, 10,8% en pediátricos, 9,7% en adultos y 16,9% en ancianos. El 70% presentó un riesgo alto en la escala de Braden y del 50% en la escala Braden Q. Se identificaron 167 UPP, de las cuales sus principales categorías fueron la categoría I y la II. Se localizaron en talones, sacro y glúteos. Conclusiones: Se encontró una prevalencia puntual por debajo de lo reportado a nivel nacional e intermedio a nivel internacional.

  20. Aplicación diagnóstica de PCR para detección de Streptococcus constellatus en pericoronaritis.

    OpenAIRE

    Fernandes Borges da Costa, Helena Isabel

    2013-01-01

    La pericoronaritis es una patologia infecciosa que suele producirse con frecuencia alrededor del tercer molar, cuando este erupciona. Suele manifestarse con mayor frecuencia en molares inferiores, cursando clinicamente con dolor y exsudado, traendo implicaciones y complicaciones severas al paciente si el diagnóstico y el enfoque terapeutico no sea el correcto. Por su naturaleza polimicrobiana la pericoronaritis tiene un caracter patogeno puesto de manifiesto onde se describen con mayor proble...

  1. An audit of impacted mandibular third molar surgery | Obimakinde ...

    African Journals Online (AJOL)

    Methodology: We carried out a descriptive clinical study involving patients who presented for management of impacted third molar between January 2010 and December 2011. Demography of the patients including third molar spatial relationship, indications for surgery and pre- and post-operative visual analogue score for ...

  2. Internal root morphology in maxillary first permanent molars in a ...

    African Journals Online (AJOL)

    Objective: To determine the internal root morphology and gender variations in maxillary first permanent molars in a Kenyan population. Design: In vitro descriptive cross-sectional study. Setting: School of Dental Sciences, University of Nairobi. Subject: One hundred and eighty seven maxillary first permanent molars were ...

  3. Incomplete molar pregnancy with live coexisting fetus: a case report

    Directory of Open Access Journals (Sweden)

    Leila Pourali

    2014-03-01

    Conclusion: The rate of pregnancy complications such as hypertension, hyperthyroidism, and obstetrics hemorrhage and also the risk of Gestational Trophoblastic Neoplasm (GTN are increasing in incomplete molar pregnancy. Therefore, early diagnosis and timely treatment of molar pregnancy is very important to reduce maternal morbidity and mortality.

  4. Case report - Ectopic molar pregnancy: A case report | Bousfiha ...

    African Journals Online (AJOL)

    The incidence of hydatidiform moles is 1 per 1,000 pregnancies. Ectopic pregnancy occurs in 20 per 1,000 pregnancies. Thus, the incidence of the ectopic molar gestation is very rare. We report a case of tubal molar pregnancy diagnosed at the systematic histology exam of an ectopic pregnancy. We report the case of 32 ...

  5. Evaluation of radiographic features of embedded primary molar ...

    African Journals Online (AJOL)

    Background: The roots of primary molars were found in the permanent dentition without symptoms on the clinical or radiographic examination. However, their incidence could not be achieved on the current literature. Objective: The aim of this study is to evaluate the radiographic features of the embedded primary molar roots ...

  6. Impacted Mandibular Third Molars: Review of Literature and a ...

    African Journals Online (AJOL)

    impacted mandibular third molar surgery: 1‑year results. Int. J Periodontics Restorative Dent 1993;13:397. 43. Edwards MJ, Brickley MR, Goodey RD, Shepherd JP. The cost, effectiveness and cost effectiveness of removal and retention of asymptomatic, disease free third molars. Br Dent. J 1999;187:380‑4. 44. Smith WP.

  7. excess molar volumes, and refractive index of binary mixtures of ...

    African Journals Online (AJOL)

    Preferred Customer

    mixtures of glycerol + water, and glycerol + methanol at 298.15 K and 303.15 K. Excess molar volumes (VE) have been calculated ... KEY WORDS: Excess molar, Density, Refractive index, Glycerol, Water, Methanol ... Biodiesel, defined as “a substitute for, or a additive to diesel fuel that is derived from the oils and fats of ...

  8. [Supernumerary teeth located in molar region: three cases report].

    Science.gov (United States)

    Dai, Jie; Yang, Weijiang; Shen, Xuanjiang

    2011-08-01

    Supernumerary teeth is one of the teeth dysplasia that the number of teeth exceeded normal. Most of supernumerary teeth reported were located in anterior teeth region, but rare cases were reported in molar region. This paper reported three cases that supernumerary teeth located in molar region.

  9. Molar incisor hypomineralisation: clinical management of the young patient.

    LENUS (Irish Health Repository)

    Daly, Dympna

    2009-04-01

    Molar incisor hypomineralisation (MIH) is a common developmental condition resulting in enamel defects in first permanent molars and permanent incisors. It presents at eruption of these teeth. Early diagnosis is essential since rapid breakdown of tooth structure may occur, giving rise to acute symptoms and complicated treatment. The purpose of this article is to review MIH and illustrate its clinical management in young children.

  10. Changes in heart rate during third molar surgery

    NARCIS (Netherlands)

    Hollander, M. H. J.; Schortinghuis, J.; Vissink, A.

    2016-01-01

    Anxiety is an undesirable psychological phenomenon. Patients are usually anxious when subjected to third molar surgery, but the pattern of anxiety is unknown. The aim of this study was to assess the intensity and course of anxiety during third molar surgery. This study included 48 consecutive

  11. Variant root morphology of third mandibular molar in normal and ...

    African Journals Online (AJOL)

    Variant root morphology of third mandibular molar in normal and impacted teeth. Isaac Kipyator Bokindo, Fawzia Butt, Francis Macigo. Abstract. The mandibular third molar poses a challenge to dental surgeons due to it's unpredictable morphology which leads to increased difficulty during its extraction. The root morphology ...

  12. Fatigue resistance of CAD/CAM resin composite molar crowns.

    NARCIS (Netherlands)

    Shembish, F.A.; Tong, H.; Kaizer, M.; Janal, M.N.; Thompson, V.P.; Opdam, N.J.M.; Zhang, Y.

    2016-01-01

    OBJECTIVE: To demonstrate the fatigue behavior of CAD/CAM resin composite molar crowns using a mouth-motion step-stress fatigue test. Monolithic leucite-reinforced glass-ceramic crowns were used as a reference. METHODS: Fully anatomically shaped monolithic resin composite molar crowns (Lava

  13. Excess molar volumes and isentropic compressibilities of binary ...

    Indian Academy of Sciences (India)

    Remaining five binary mixtures, n-heptane + toluene, cyclohexane + n-heptane, cyclohexane + n-hexane, toluene + nhexane and n-decane + n-hexane show negative excess molar volumes over the whole composition range. However, the large negative values of excess molar volume becomes dominant in toluene + ...

  14. Indications and risk factors for complications of lower third molar ...

    African Journals Online (AJOL)

    Aim: The aim of this study was to determine the surgical indications and risk factors for complications of third molar surgery at a Nigerian teaching hospital. ... records of patients referred to the Oral Surgery Clinic of our institution for surgical extraction of their impacted mandibular third molars from January 2008 to December ...

  15. Prematurely erupted tooth in the molar region | Denloye | Nigerian ...

    African Journals Online (AJOL)

    This paper reports the case of a thirty-three-day old male child who was seen at the outpatient clinic of the University College Hospital, Ibadan with a tooth- like structure in the maxillary right molar region. This firm structure which resembled a primary molar had only two definite buccal cusps, no lingual cusp and no occlusal ...

  16. Pathomorphology of Molar Gestation in Zaria | Mayun | Nigerian ...

    African Journals Online (AJOL)

    Background: Molar gestations are a source of significant morbidity with increased risk of mortality from their complications if not identified and treated early enough. Objective: This study aims at histologically reviewing and analyzing all cases of molar gestations seen in the Histopathology Department of Ahmadu Bello ...

  17. Internal root morphology in mandibular first permanent molars in a ...

    African Journals Online (AJOL)

    Objective: To determine the internal root morphology and gender variations in mandibular first permanent molars in a Kenyan population. Design: In vitro descriptive cross sectional study. Setting: School of Dental Sciences, University of Nairobi Results: The mesial root of mandibular first molars had two canals in 96.3% of ...

  18. Molar pregnancy: a ten year review at Onitsha, Nigeria | Obiechina ...

    African Journals Online (AJOL)

    The incidence of molar pregnancy was 1:332 deliveries or 1.416 pregnancies. There was no definite age pattern in the distribution of molar pregnancy. The commonest clinical presentation was recurrent vaginal bleeding 90.6% while the least was uterine size less than date in 3.8% of the cases. Syntocinon induction with ...

  19. [Clinical analysis of caries status of the mandibular second molar].

    Science.gov (United States)

    You, Chun-an; Zheng, Ping; Hu, Ning; Su, Qin

    2014-04-01

    To collect the cases which have caries on the mandibular second molar and analyze the caries status and correlative factors. Patients treated in the Department of Endodontics in West China Hospital of Stomatology were randomly collected. The baseline information, primary sites and severity of dental caries on the mandibular second molar, and eruption pattern of the mandibular third molar were recorded. The data was analyzed with SPSS13.0 software package. Four hundred eighty-one patients including 227 males and 254 females were collected. Caries on the mandibular second molar starting from the occlusal, distal proximal and buccal surfaces accounted for 33.8%, 33.2% and 24.4%, respectively. Caries involving dental pulp (49.7%) were significantly more than deep and shallow to moderate caries (31.7% and 18.6%). Gender was not correlated with the site and severity of caries. However, impacted mandibular third molars and age were significantly related to both caries site and severity. Occlusal and distal proximal surfaces are the most predisposed sites to have caries on mandibular second molar. Impacted mandibular third molar and age are significantly related to caries of mandibular second molar.

  20. Prevalent of root resorption of second molar adjustment the impacted third molar in prepiacal and panoramic radiographs

    Directory of Open Access Journals (Sweden)

    Mohammad Ebrahimi Saravi

    2013-10-01

    Full Text Available   Background and Aims: Impacted third molar reduces the bone level in the distal aspect of second molar, and sometimes it can lead to root resorption of the adjacent tooth. The purpose of this study was to determine this resorption using panoramic and periapical radiographs.   Materials and Methods: In this cross-sectional descriptive study 54 patient (28 men, 26 women above 15 years old with the average of 22 years in Oral and Maxillofacial Department of Tehran University were studied. A periapical radiography from the third molar and a panoramic radiograph were taken from each patient (Because of their routine use and evaluation of accuracy of panoramic compared with periapical, and the magnitude of the root resorption for the second molar was determined by 2 observers and written in a questionnaire. Data were analyzed using Fisher test.   Results: The prevalence of the root resorption of the second molar adjacent to the impacted third molar in the panoramic and the periapical radiographies, with respect to the limitation of the sample size were 46.3% and 31.5%, respectively, with 95% confidence(P>0.05. Most of these resorptions were in the cervical third of the second molar roots and in cases in which the third molars were mesially oriented or horizontal. There was also no significant difference between panoramic and periapical radiographs.   Conclusion: Due to the increased risk of the resorption of the second molar adjacent to the third molar, extraction of the impacted third molars, especiall y mesially oriented or horizontal ones are recommended.

  1. Absceso subperióstico y síndrome del vértice orbitario: Complicación posterior a la extracción del tercer molar mandibular

    OpenAIRE

    Salado R,Lupe; Alvarez S,Lupe; Brunetto M,Beatriz

    2009-01-01

    Introducción: La diseminación de las infecciones que se extienden de dientes mandibulares y estructuras adyacentes hacia la órbita y tejido periorbitario son infrecuentes, pero graves ya que tienen el potencial de causar la pérdida de la visión. Objetivos: El propósito de este artículo es publicar un caso clínico muy interesante por lo infrecuente, y explicar a juicio de los autores las vías de diseminación de la infección, a su vez alertar a los diferentes especialistas involucrados sobre la...

  2. El Tercer Canal

    Directory of Open Access Journals (Sweden)

    George McBean

    2015-01-01

    Full Text Available La mayoría de los jóvenes adultos dirán que han aprendido tanto en su tiempo libre como lo que han aprendido en su educación formal. El entorno de la información ha cambiado tan dramáticamente en los últimos veinte años qu elos jóvenes adultos están siendo expuestos a opciones de estilo de vida que nunca fueron parte de la experiencia de sus padres. Por lo tanto, la nueva generación frecuentemente exhibe cualidades y comportamientos con los que los padres no se pueden asociar. Los jóvenes adultos de hoy en día pueden ser talentosos en una variedad de actividades, astutos en la compresnsión y más prestos a desafiar la autoridad. También sienten frustración ante la variedad de opciones que aprentemente tienen a la mano, pero que parecen imposibles de lograr. Sean cuales fueren los retos individuales para la juventud, los educadores nos vemos obligados a buscar las solucionesen toda la gama de las posibilidades en lugar de tratar de encontrarlas en la historia.

  3. Pulpotomies with portland cement in human primary molars

    Directory of Open Access Journals (Sweden)

    Taísa Regina Conti

    2009-02-01

    Full Text Available Two clinical cases in which Portland cement (PC was applied as a medicament after pulpotomy of mandibular primary molars in children are presented. Pulpotomy using PC was carried out in two mandibular first molars and one mandibular second molar, which were further followed-up. At the 3, 6 and 12-month follow-up appointments, clinical and radiographic examinations of the pulpotomized teeth and their periradicular area revealed that the treatments were successful in maintaining the teeth asymptomatic and preserving pulpal vitality. Additionally, the formation of a dentin bridge immediately below the PC could be observed in the three molars treated. PC may be considered as an effective alternative for primary molar pulpotomies, at least in a short-term period. Randomized clinical trials with human teeth are required in order to determine the suitability of PC before unlimited clinical use can be recommended.

  4. 3-Dimensional imaging for lower third molars: is there an implication for surgical removal?

    Science.gov (United States)

    Eyrich, Gerold; Seifert, Burkhardt; Matthews, Felix; Matthiessen, Urs; Heusser, Cyrill K; Kruse, Astrid L; Obwegeser, Joachim A; Lübbers, Heinz-Theo

    2011-07-01

    Surgical removal of impacted third molars may be the most frequent procedure in oral surgery. Damage to the inferior alveolar nerve (IAN) is a typical complication of the procedure, with incidence rates reported at 1% to 22%. The aim of this study was to identify factors that lead to a higher risk of IAN impairment after surgery. In total 515 surgical third molar removals with 3-dimensional (3D) imaging before surgical removal were retrospectively evaluated for IAN impairment, in addition to 3D imaging signs that were supposed predictors for postoperative IAN disturbance. Influence of each predictor was evaluated in univariate and multivariate analyses and reported as odds ratio (OR) and 95% confidence interval (CI). The overall IAN impairment rate in this study was 9.4%. Univariate analysis showed narrowing of the IAN canal (OR, 4.95; P < .0001), direct contact between the IAN and the root (OR, 5.05; P = .0008), fully formed roots (OR, 4.36; P = .045), an IAN lingual course with (OR, 6.64; P = .0013) and without (OR, 2.72; P = .007) perforation of the cortical plate, and an intraroot (OR, 9.96; P = .003) position of the IAN as predictors of postoperative IAN impairment. Multivariate analysis showed narrowing of the IAN canal (adjusted OR, 3.69; 95% CI, 1.88 to 7.22; P = .0001) and direct contact (adjusted OR, 3.10; 95% CI, 1.15 to 8.33; P = .025) to be the strongest independent predictors. Three-dimensional imaging is useful for predicting the risk of postoperative IAN impairment before surgical removal of impacted lower third molars. The low IAN impairment rate seen in this study-compared with similar selected study groups in the literature of the era before 3D imaging-indicates that the availability of 3D information is actually decreasing the risk for IAN impairment after lower third molar removal. Copyright © 2011 American Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved.

  5. Incidental right Bochdalek hernia with interruption of the inferior ...

    African Journals Online (AJOL)

    Incidental right Bochdalek hernia with interruption of the inferior vena cava and ... SA Journal of Radiology ... A 36-year-old asymptomatic female had a routine chest radiograph to exclude pulmonary tuberculosis, as part of an employee ...

  6. Extraction of maxillary first molars improves second and third molar inclinations in Class II Division 1 malocclusion

    NARCIS (Netherlands)

    Livas, C.; Halazonetis, D.J.; Booij, J.W.; Katsaros, C.

    2011-01-01

    INTRODUCTION: The aim of this study was to assess the changes in inclination of the maxillary second (M2) and third (M3) molars after orthodontic treatment of Class II Division 1 malocclusion with extraction of maxillary first molars. METHODS: Two groups of subjects were studied. The experimental

  7. Preoperative oral use of Ibuprofen or dexamethasone may improve the anesthetic efficacy of an inferior alveolar nerve block in patients diagnosed with irreversible pulpitis.

    Science.gov (United States)

    Nusstein, John M

    2013-09-01

    Effect of premedication with ibuprofen and dexamethasone on success rate of inferior alveolar nerve block for teeth with asymptomatic irreversible pulpitis: a randomized clinical trial. Shahi S, Moktari H, Rahimi S, Yavari HR, Narimani S, Abdolrahmi M, Nezafati S. J Endod 2013;39(2):160-2. John M. Nusstein, DDS, MS PURPOSE/QUESTION: To determine whether preoperative oral administration of ibuprofen (400 mg), dexamethasone (0.5 mg), or placebo (lactose) would improve the anesthetic success rate of an inferior alveolar nerve block in patients with molars diagnosed with asymptomatic irreversible pulpitis University: Dental and Periodontal Research Center of Tabriz, Tabriz University of Medical Sciences, Tabriz, Iran Randomized controlled trial Level 2: Limited-quality, patient-oriented evidence Not applicable. Copyright © 2013 Elsevier Inc. All rights reserved.

  8. Giant leiomyosarcoma of inferior vena cava. A surgical challenge.

    Science.gov (United States)

    Kumar, Santosh; Devana, Sudheer Kumar; Kuthe, Sachin; Yadav, Thakur Deen; Prasad, Seema

    2014-09-01

    We describe the case of a 37-year-old woman who presented with an unusually large (26 × 20 × 16 cm) extraluminal leiomyosarcoma arising from segment I (below the renal vessels) of the inferior vena cava. She was successfully managed with radical surgical excision and reconstruction of the inferior vena cava with synthetic graft. © The Author(s) 2013 Reprints and permissions: sagepub.co.uk/journalsPermissions.nav.

  9. Inferior alveolar nerve sensitivity changes after mandibular trauma

    OpenAIRE

    Simonas Grybauskas; Algirdas Lukosiunas; Gintautas Sabalys; Ricardas Kubilius; Dainius Razukevicius

    2010-01-01

    The investigation was performed on 195 patients, who had fracture on mandibular angle zone. In control group pain thresholds of infraorbital nerve and inferior alveolar nerve did not differ significantly (p > 0.05). Consequently, lesion degree of inferior alveolar nerve and its functional recovery dynamics were estimated objectively according to pain threshold and lesion index of neural function. Stump dislocation extent has influence on neural lesion: the more expressed dislocation, the high...

  10. The effect of shoulder position on inferior glenohumeral mobilization.

    Science.gov (United States)

    Witt, Dexter W; Talbott, Nancy R

    2017-03-09

    Cross-sectional clinical measurement study. Inferior mobilizations are used to treat patients with shoulder dysfunctions. Common positions recommended for promoting an inferior glide include: (1) an open-packed position (OPP) in which the shoulder is in 55° of abduction, 30° of horizontal adduction, and no rotation; (2) neutral position (NP) of the shoulder; and (3) position of 90° of shoulder abduction (ABDP). Studies comparing the impact of position on inferior mobilization are lacking. To determine the effect of shoulder position on humeral movement and mobilization force during inferior mobilizations. Twenty-three subjects were tested bilaterally. Subjects were placed in the OPP, and an ultrasound transducer placed over the superior glenohumeral joint. As inferior mobilization forces were applied through a dynamometer, ultrasound images were taken at rest and during 3 grades of inferior mobilization. This process was repeated in the NP and the ABDP. In the NP, movements during grade 1, 2, and 3 mobilizations were 1.8, 3.8, and 4.5 mm, respectively. Movements measured in the OPP (1.0, 2.4, and 3.6 mm, respectively) and in the ABDP (1.0, 2.2, and 2.3 mm, respectively) were less. Forces were higher in the NP during grade 1, 2, and 3 mobilizations (51.8, 138.7, and 202.1 N, respectively) than in the OPP (37.2, 91.2, and 139.9 N, respectively) and the ABPD (42.5, 115.3, and 165.5 N, respectively). Mobilization position altered the movement and force during inferior mobilizations. Shoulder position should be considered when utilizing inferior mobilizations. NA. Copyright © 2017 Hanley & Belfus. Published by Elsevier Inc. All rights reserved.

  11. [Congenital anomalies of the inferior vena cava: role of imaging].

    Science.gov (United States)

    Manfredi, R; Cotroneo, A R; Pirronti, T; Macis, G; Marano, P

    1995-10-01

    In recent years, clinics and radiology of congenital anomalies of the inferior vena cava have increased in importance in planning abdominal surgery, liver or kidney transplantation, or new interventional or diagnostic procedures such as the positioning of inferior vena cava filters to prevent pulmonary embolism, varicocel sclerotherapy and renal venous sampling. In the past, the radiologic assessment of these rare anomalies was performed only with angiography, which remains the most accurate diagnostic method. Today, besides angiography, less invasive examinations can be performed, e.g., US, CT and MRI, with MRA. In the last two years, 5 patients with inferior vena cava anomalies were examined: 3 had double inferior vena cava and 2 azygos continuation. All of them were submitted to US, CT, MRI and MRA and 3 patients underwent also angiography, two of them with double puncture. US can suggest the diagnosis but may be limited by technical factors and in the assessment of the whole inferior vena cava. Enhanced CT can depict anomaly extent, but uses contrast agents and ionizing radiations. Angiography better depicts craniocaudal spread and collateral networks but is an invasive procedure and sometimes needs a double puncture (double inferior vena cava). MRI, with MRA, yields the same information as the other modalities, but without contrast agents or ionizing radiations. The development of velocity encoded sequences will probably make this technique the method of choice in the study of inferior vena cava anomalies. Our study was aimed at reviewing the embryo-genesis of inferior vena cava anomalies and to assess the relative importance of different diagnostic procedures in the diagnosis and staging of these anomalies.

  12. Pulpotomías de molares temporales en pulpas muertas con tintura de propóleos al 10% Pulpotomies of dead pulps in temporal molars using 10% propolis tinction.

    Directory of Open Access Journals (Sweden)

    Walkyria del Carmen González Rodríguez

    2007-09-01

    Full Text Available Se realizó un ensayo clínico fase II aleatorizado comparado en 50 niños de 4 a 10 años que presentaron molares temporales con muerte pulpar, los cuales acudieron a la Clínica Estomatológica Provincial de Santiago de Cuba entre septiembre del 2005 y septiembre del 2006, con el objetivo de demostrar la eficacia de la tintura de propóleos al 10 % en pulpotomías (necropulpotomías. Se conformaron 2 grupos de tratamientos de 26 pacientes cada uno: en el grupo A se empleó tintura de propóleos al 10 % y en el B el formocresol. Los pacientes se evaluaron a los 7, 15 y 30 días, sin observarse diferencias ni reacciones adversas. El grupo dentario más tratado fue el constituido por los segundos molares temporales inferiores, donde la tintura de propóleos al 10 % en las pulpotomías, resultó ser tan eficaz como el formocresol, por lo que se recomienda incluir en tratamientos endodónticos esta nueva terapéutica.A comparative phase II randomized clinical assay of 50 children aged 4 to 10 years, who presented with temporal molars with dead pulp and were seen at the Provincial Dental Clinic of Santiago de Cuba from September 2005 to September 2006, was conducted to confirm the effectiveness of 10% propolis tinction in pulpotomies (necropulpotomies. Two groups of 26 patients were formed; group A used 10% propolis tinction and group B was treated with formocresol. The patients were evaluated at 7th , 15th and 30th days; neither difference nor adverse reaction was observed. The most treated dental group was the second lower temporal molars where 10% propolis tinction in pulpotomies proved to be as effective as formocresol, so it was recommended to include this new therapy in the endodontic treatment.

  13. El papel del Tercer Sector de Acción Social y su articulación normativa en España.

    Directory of Open Access Journals (Sweden)

    Gloria Paterna Sánchez

    2017-12-01

    Full Text Available El s.XXI se ha caracterizado, en Occidente, por una importante recesión o crisis económica y por un cambio en la atmósfera ideológica, en la que los partidos políticos centran su principal cuestión en el destino del gasto público que, al verse reducido, debe ser escrupulosamente estudiado. Esta realidad ha generado una revisión del Estado de Bienestar que ya se había planteado a finales del s.XX, pero que se reaviva con la aparente incapacidad de los Gobiernos de dar cobertura a las necesidades ciudadanas. Centrando el análisis de esta realidad universal –con especial reflejo en occidente-, en España, en Octubre de 2015 se aprobó la Ley del Tercer Sector de Acción Social, una ley que reconoce por vez primera al Tercer Sector de Acción Social como agente necesario para mantener los derechos sociales adquiridos por los ciudadanos.

  14. Calidad de sueño y excesiva somnolencia diurna en estudiantes del tercer y cuarto año de Medicina

    Directory of Open Access Journals (Sweden)

    Michael Bill Barrenechea Loo

    2010-01-01

    Full Text Available Objetivo, Determinar el grado de somnolencia diurna y calidad del sueño en estudiantes del tercero y cuarto año de la Facultad de Medicina de la Universidad de San Martín de Porres. Diseño, Descriptivo exploratorio transversal. Lugar, Facultad de Medicina de la Universidad de San Martin de Porres. Participantes, 195 y 199 estudiantes de medicina de tercer y cuarto año, respectivamente. Intervenciones, Cuestionarios de escala de somnolencia de Epworth e índice de calidad del sueño Pittsburgh Modificado con estudio probabilístico aleatorio simple de estudiantes de medicina del tercer y cuarto año. Principales medidas de resultados, Frecuencias de Somnolencia diurna y calidad del sueño Resultados, Edad promedio global de 21.08 años. El 64.5% tiene mala calidad del sueño y 26%, excesiva somnolencia diurna. Se encontró una media global de 5.6 horas de sueño. Conclusiones, Se encontró alta frecuencia de mala calidad del sueño y excesiva somnolencia diurna en los estudiantes de medicina encuestados, además de un valor porcentual considerable sobre el consumo de medicación hipnótica y una tendencia a dormir 6 horas o menos.

  15. Errores de escritura en español en niños de tercer grado de educación primaria

    Directory of Open Access Journals (Sweden)

    Dora Elizabeth Granados Ramos

    2016-01-01

    Full Text Available Objetivo. Describir los errores en las producciones escritas de niños de tercer grado de educación primaria de escuelas públicas, teniendo en cuenta su bajo rendimiento en pruebas del Estado. Método. Participaron 42 niños de tercer grado de educación primaria de escuelas oficiales de la ciudad de Xalapa (Veracruz, México, con una edad promedio de 8 años. Se aplicaron la Escala de Inteligencia Wechsler para niños WISCIV, estandarizada para población mexicana, y la Evaluación Neuropsicológica Infantil (ENI. Resultados. Se observaron diferencias significativas con la prueba Anova, al comparar el total de errores con la composición narrativa, con la coherencia narrativa y con la longitud de la producción narrativa; y al comparar la precisión de la escritura con los procesos de percepción y memoria auditiva. Predominaron los errores de tipo ortográfico, visual, espacial y auditivos. Conclusión. El análisis de las producciones escritas de los niños permitió describir sus características, los tipos de error y los procesos neuropsicológicos asociados con los errores en la escritura.

  16. Frecuencia de trastornos mentales en alumnos del tercer año de la Facultad de Medicina de una universidad privada de Lima - 2006

    Directory of Open Access Journals (Sweden)

    Patricia Rodas Descalzi

    2009-04-01

    Full Text Available El estudiante de medicina está sometido a numerosas fuentes de estrés que lo hacen más susceptible a sufrir una gran variedad de trastornos mentales. Todo ello ha sido tema de múltiples estudios. La MINI (M: Mini I: International N: Neuropsychiatric I: Interview en formato escrito tiene 15 módulos que exploran diferentes diagnósticos y su versión peruana se ha validado recientemente. Objetivo: Determinar la frecuencia de trastornos mentales en los estudiantes de tercer año de medicina de una universidad privada. Material y métodos: Se aplicó la MINI con una ficha de recolección de datos, previo consentimiento informado a los alumnos de tercer año. Se accedió luego a los resultados de MILLON aplicado en el examen médico anual. Resultados: La tasa de respuesta fue 68,1%. Se encontró una frecuencia de trastorno mental de 41,8%, sobresaliendo el Trastorno de Ansiedad Generalizada (27,84%. La frecuencia de probable trastorno de personalidad fue 80% destacando el Compulsivo (48,5%. Conclusiones: Se obtuvieron frecuencias elevadas de trastornos mentales, siendo el más frecuente el Trastorno de Ansiedad Generalizada y el probable Trastorno Compulsivo de personalidad; los mismos que deben ser confirmados con entrevistas psiquiátricas posteriores. (Rev Med Hered 2009;20:158-164.

  17. Tendencias de la Comunicación del Tercer Sector en la web 2.0: Análisis retórico de los tropos

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    Isidoro Arroyo Almaraz

    2013-08-01

    Full Text Available Los grandes éxitos de determinados mensajes a través de las redes sociales han hecho que este nuevo “medio” se vea como un modelo muy interesante para el Tercer Sector. En este artículo llevamos a cabo el análisis de aspectos formales y de contenido de las comunicaciones del Tercer Sector en las redes sociales y se determinan las tendencias que se repiten  destacando, entre otros,  el uso retórico de los tropos. Se percibe una tendencia hacia la similitud de los mensajes estudiados en sus aspectos narrativos, expresivos, persuasivos y retóricos. Los mensajes de carácter social distribuidos a través de las redes sociales muestran, en su construcción, perfiles uniformes y homogéneos en sus aspectos formales. Se concluye que utilizan las mismas piezas ya usadas en otros medios por lo que se infiere que no piensan en las bondades de las redes sociales para aprovechar los recursos específicos de éstas.  

  18. Eruption status of third molars in South Indian city

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    Sujata M Byahatti

    2011-01-01

    Full Text Available Aim : The aim of the present study is to determine the number of third molars per person, angulation, level, amount of space for eruption of third molar between ramus of mandible and second molar status of root and also to study the difficulty index. Objective: To study the eruption status of third molar in South Indian population. Materials and methods: The study conducted at Department of Oral Medicine and Radiology. Maratha Mandals NG Halgekar College of Dental Sciences and Research Centre. Belgaum, Karnataka, India A total of 150 patients (54 females and 96 males visiting outpatient department between the age group of 17 and 30 with a mean age of 23.5 years were selected- Before starting the study, ethical concern taken from the ethical committee and informed consent from each patent who underwent radiographic examination. Results: The results showed approximately 94.66% of the subjects had all four third molars, 8.6% had three third molars, 4.6% had two third molars and 2% had one third molars with 3.3% having agenesis of all third molars. Third molar agenesis showed predilection for upper jaw with higher proportion in females (5 5% than males (2%. Angular position seen maximum with vertical position (66.16% with least being horizontal impactions. Level of occlusal plane of third molar similar to that of adjacent tooth seen in 52.65%. Below the occlusal plane in 19.61 %, totally impacted teeth noted in 27.73%. More than 75% of the teeth had complete root formation. Among total number of teeth, 518 (91.51 % teeth were easy to extract and remaining 33 (5.8% were difficult to extract. Conclusion: Radiological and clinical findings have correlated to assess whether teeth were easy to extract or difficult. Because of the increasing incidence of unerupted third molars and the association of numerous complications with these retained teeth, assessment of germ position and prognosis of third molar eruption is necessary for better patient management.

  19. Opioid modulation of GABA release in the rat inferior colliculus

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    Forge Andrew

    2004-09-01

    Full Text Available Abstract Background The inferior colliculus, which receives almost all ascending and descending auditory signals, plays a crucial role in the processing of auditory information. While the majority of the recorded activities in the inferior colliculus are attributed to GABAergic and glutamatergic signalling, other neurotransmitter systems are expressed in this brain area including opiate peptides and their receptors which may play a modulatory role in neuronal communication. Results Using a perfusion protocol we demonstrate that morphine can inhibit KCl-induced release of [3H]GABA from rat inferior colliculus slices. DAMGO ([D-Ala(2, N-Me-Phe(4, Gly(5-ol]-enkephalin but not DADLE ([D-Ala2, D-Leu5]-enkephalin or U69593 has the same effect as morphine indicating that μ rather than δ or κ opioid receptors mediate this action. [3H]GABA release was diminished by 16%, and this was not altered by the protein kinase C inhibitor bisindolylmaleimide I. Immunostaining of inferior colliculus cryosections shows extensive staining for glutamic acid decarboxylase, more limited staining for μ opiate receptors and relatively few neurons co-stained for both proteins. Conclusion The results suggest that μ-opioid receptor ligands can modify neurotransmitter release in a sub population of GABAergic neurons of the inferior colliculus. This could have important physiological implications in the processing of hearing information and/or other functions attributed to the inferior colliculus such as audiogenic seizures and aversive behaviour.

  20. El tercer sector en el contexto de la Ley de Autonomía Personal y Atención a la Dependencia: las esferas de la legitimación y de la gestión

    OpenAIRE

    Albor González, Javier

    2008-01-01

    Se abordan determinados aspectos de la Ley 39/2006 de Promoción de la Autonomía Personal y Atención a las Personas en situación de Dependencia (LAAD) que pueden llegar a tener cierta relevancia estratégica para las organizaciones del Tercer Sector de Acción Social. Se realiza un análisis dialéctico entre el Tercer Sector, las entidades mercantiles y el Estado, que parte de la hipótesis de que esta ley supone una apertura a la mercantilización de los servicios sociales, en consonancia con las ...

  1. Molar-incisor hypomineralization: Therapeutic challenge to paediatric dentistry practice

    Directory of Open Access Journals (Sweden)

    Stojković Branislava

    2017-01-01

    Full Text Available Introduction: Molar incisor hypomineralization indicates the appearance of enamel hypomineralization of systemic origin which occurs in 1-4 first permanent molars, which is often accompanied by changes on permanent incisors. Variations in clinical manifestation, together with commonly present asymmetry, are the reason for large variations in the needs for therapeutic treatment of these structural enamel defects. Case study: Two patients with diagnosed molar incisor hypomineralization are shown. The first patient, a six-year-old girl, with diagnosed mild clinical form, visited the dentist immediately after the eruption of the first permanent molars. Early diagnosis and timely application of preventive-profilactic measures, together with mild clinical form, are the reason for prevention of dental caries and further spreading of posteruptive enamel breakdown on affected first molars. Unlike the first one, the second patient, a 7,5-year-old girl had the diagnosis of moderate molar incisor hypomineralization. She developed dental caries on tooth 46 as well as complication in dental caries on tooth 36 which was extracted soon after the eruption. Conclusion: Early diagnosis and the severity of clinical appearance are the most important factors which determine therapeutic outcome of the treatment of molar incisor hypomineralization.

  2. Response of molars and non-molars to a strict supragingival control in periodontal patients

    Directory of Open Access Journals (Sweden)

    Patrícia Daniela Melchiors Angst

    2013-02-01

    Full Text Available The posterior position in the arches is one of the factors that underlies the poor prognosis of molar teeth (M. It is speculated that M do not benefit from the oral hygiene routine as well as non-molars (NM do. This study evaluated the response of M and NM to supragingival control during a 6-month period in 25 smokers (S and 25 never-smokers (NS with moderate-to-severe periodontitis. One calibrated examiner assessed visible plaque (VPI and gingival bleeding (GBI indexes, periodontal probing depth (PPD, bleeding on probing (BOP, and clinical attachment loss (CAL at days 0 (baseline, 30 and 180. At baseline, M showed significantly higher mean values of VPI (p = 0.017 and PPD (p < 0.001 compared with NM; CAL was also greater in M (p < 0.001 and was affected by smoking (p = 0.007. The reductions obtained for periodontal indicators at day 180 showed similar responses between M and NM. For CAL, M (NS 0.57 ± 0.50; S 0.67 ± 0.64 and NM (NS 0.38 ± 0.23; S 0.50 ± 0.33 reached an almost significant difference (p = 0.05. Smoking did not influence the response to treatment. Multilevel analysis revealed that, only for PDD reductions, the interaction between sites, teeth and patient was significant (p < 0.001. It was concluded that M benefit from an adequate regimen of supragingival biofilm control; therefore, supragingival condition should be considered in the prognosis of molar teeth.

  3. [Anatomy of fractures of the inferior scapular angle].

    Science.gov (United States)

    Bartoníček, J; Tuček, M; Malík, J

    2018-01-01

    The aim of this study is to describe the anatomy of fractures of the inferior angle and the adjacent part of the scapular body, based on 3D CT reconstructions. In a series of 375 scapular fractures, we identified a total of 20 fractures of the inferior angle of the scapular body (13 men, 7 women), with a mean patient age of 50 years (range 3373). In all fractures, 3D CT reconstructions were obtained, allowing an objective evaluation of the fracture pattern with a focus on the size and shape of the inferior angle fragment, propagation of the fracture line to the lateral and medial borders of the infraspinous part of the scapular body, fragment displacement and any additional fracture of the ipsilateral scapula and the shoulder girdle. We identified a total of 5 types of fracture involving the distal half of the infraspinous part of the scapular body. The first type, recorded in 5 cases, affected only the apex of the inferior angle, with a small part of the adjacent medial border. The second type, occurring in 4 cases, involved fractures separating the entire inferior angle. The third type, represented by 4 cases, was characterized by a fracture line starting medially close above the inferior angle and passing proximolaterally. The separated fragment had a shape of a big drop, carrying also the distal half of the lateral pillar in addition to the inferior angle. In the fourth type identified in 5 fractures, the separated fragment was formed both by the inferior angle and a variable part of the medial border. The fifth type, being by its nature a transition to the fracture of the infraspinous part of the body, was recorded in 2 cases, with the same V-shaped fragment. Fractures of the inferior angle and the adjacent part of the scapular body are groups of fractures differing from other infraspinous fractures of the scapular body. Although these fractures are highly variable in terms of shape, they have the same course of fracture line and the manner of displacement

  4. Surgical approach to impacted mandibular third molars--operative classification.

    Science.gov (United States)

    Abu-El Naaj, Imad; Braun, Refael; Leiser, Yoav; Peled, Micha

    2010-03-01

    The aim of the present study is to suggest a convenient way to classify the position of the impacted third mandibular molar relative to the mandibular canal and to suggest indications for the use of each surgical approach for mandibular third molar extraction. The presented new typing system, Third Molar Classification (TMC), is a simple and easy-to-apply method for the surgical management of mandibular third molars and can be extended for any ectopic or impacted mandibular tooth. There are 3 major types of third molar positions. The second type is subdivided further into 2 subtypes. In the present study, 9 patients with high-risk mandibular third molars were treated according to the present classification and are presented and discussed. Patients typed as TMC IIb were treated with a sagittal split osteotomy approach and patients typed as TMC III were treated with an extraoral approach. The operative classification was successfully implemented in very rare cases of deeply impacted mandibular third molars. In 3 of 9 cases (33%) minor complications included some degree of hypoesthesia using the extraoral approach; these complications resolved spontaneously without the need for any intervention. The present study describes the use of a new surgical classification system for treatment planning in all types of mandibular third molar extractions. We believe that the present classification could help the oral and maxillofacial surgeon in decision-making and limit the possible risks that are present when attempting to extract impacted mandibular third molars. Copyright (c) 2010 American Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved.

  5. Autotransplantation of a mandibular third molar: A case report

    Directory of Open Access Journals (Sweden)

    Elham Najafi

    2017-09-01

    Full Text Available Tooth autotransplantation defines as transition of one tooth from one position to another, in same individual. It is a biological procedure in which teeth have the potential to induce alveolar bone growth. It can be applied in patients before adolescence growth is finished. It significantly reduces time and cost compared to implants. Healing rapidly occurs and function is regained almost immediately. Our case was a 15-year-old male that his left mandibular third molar transplanted to the second molar sight after extraction of second molar because of unrestorable crown. During 9 month follow up transplanted tooth was asymptomatic, functional and responsive to sensibility tests. (Cold test, EPT.

  6. Molar Pregnancy with a Co-Existing Viable Fetus

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    Ruya Deveer

    2014-03-01

    Full Text Available     The aim of this study was to report the clinical features, management, and outcome of a case of molar pregnancy with a coexisting viable fetus and to review the literature. In this article, we report a case of pregnancy with diffuse placental molar change and a normal fetus which presented with hyperemesis gravidarum and hyperthyroidism. Genetic amniocentesis showed normal fetal karyotype. A healthy full-term live male infant was delivered by cesarean section. In molar pregnancies with a normal karyotype fetus, with intensive maternal follow-up, continuation of pregnancy can be suggested.

  7. Elongational viscosity of narrow molar mass distribution polystyrene

    DEFF Research Database (Denmark)

    Bach, Anders; Almdal, Kristoffer; Rasmussen, Henrik Koblitz

    2003-01-01

    above the linear viscoelastic prediction at intermediate strains, indicating strain hardening. The steady elongational viscosities are monotone decreasing functions of elongation rate. At elongation rates larger than the inverse reptation time, the steady elongational viscosity scales linearly......Transient and steady elongational viscosity has been measured for two narrow molar mass distribution polystyrene melts of molar masses 200 000 and 390 000 by means of a filament stretching rheometer. Total Hencky strains of about five have been obtained. The transient elongational viscosity rises...... with molar mass at fixed elongation rate....

  8. [Germectomy. The germ of the third mandibular molar in children: remove or preserve?].

    Science.gov (United States)

    Voorsmit, R A; van den Bergh, A W

    1992-11-01

    Third molars are often removed in order to prevent complications and various other problems associated with impacted third molars and their removal. Abortion of mandibular third molars is a procedure carried out at an early age in those subjects where there is insufficient room for the eruption of the third molars. On the other hand one can also decide to remove the second molars and to annexate orthodontically the third molars in the arch.

  9. A three-dimensional finite element analysis of molar distalization with a palatal plate, pendulum, and headgear according to molar eruption stage.

    Science.gov (United States)

    Kang, Ju-Man; Park, Jae Hyun; Bayome, Mohamed; Oh, Moonbee; Park, Chong Ook; Kook, Yoon-Ah; Mo, Sung-Seo

    2016-09-01

    This study aimed to (1) evaluate the effects of maxillary second and third molar eruption status on the distalization of first molars with a modified palatal anchorage plate (MPAP), and (2) compare the results to the outcomes of the use of a pendulum and that of a headgear using three-dimensional finite element analysis. Three eruption stages were established: an erupting second molar at the cervical one-third of the first molar root (Stage 1), a fully erupted second molar (Stage 2), and an erupting third molar at the cervical one-third of the second molar root (Stage 3). Retraction forces were applied via three anchorage appliance models: an MPAP with bracket and archwire, a bone-anchored pendulum appliance, and cervical-pull headgear. An MPAP showed greater root movement of the first molar than crown movement, and this was more noticeable in Stages 2 and 3. With the other devices, the first molar showed distal tipping. Transversely, the first molar had mesial-out rotation with headgear and mesial-in rotation with the other devices. Vertically, the first molar was intruded with an MPAP, and extruded with the other appliances. The second molar eruption stage had an effect on molar distalization, but the third molar follicle had no effect. The application of an MPAP may be an effective treatment option for maxillary molar distalization.

  10. Efecto de la pérdida prematura de molares primarios sobre la relación horizontal incisiva

    Directory of Open Access Journals (Sweden)

    Yérica M García

    2011-01-01

    Full Text Available La pérdida prematura de molares primarios predispone a maloclusiones incluyendo apiñamiento, impactación de dientes permanentes y alteración de la relación molar y canina. El objetivo del presente estudio es determinar el efecto de las pérdidas prematuras de molares primarios sobre la relación incisiva horizontal. El estudio es documental, retrospectivo y observacional. Se evaluaron los registros ortodóncicos (historias clínicas, fotografías y radiografías de 209 pacientes con edades entre 4 a 15 años. La relación incisiva horizontal se consideró normal (grupo 1 cuando hubo contacto entre en borde incisal del incisivo inferior con la cara palatina del superior, aumentada (grupo 2 cuando había distancia positiva entre ellos y negativa (grupo 3 cuando los bordes incisales se encontraban a tope o en mordida cruzada. Los datos se analizaron utilizando coeficiente Pearson (p≤0,001. El 22% (45 pacientes presentó pérdidas prematuras. La prevalencia de pérdidas prematuras no tuvo diferencia significativa entre géneros y fue mayor en el grupo de 7 a 9 años. De los pacientes con pérdidas prematuras, 6 (13,3% se clasificó en el grupo 1; 12 (26,7% en el grupo 2 y 27 (60% en el grupo 3. Hubo asociación positiva entre el número de molares perdidos y la presencia de mordida cruzada anterior, siendo la media de molares perdidos mayor (4, 7 en el grupo 3. Se demostró que las pérdidas prematuras de molares primarios tienen una relación estadísticamente significativa con la mordida cruzada anterior, siendo posible que la falta de soporte oclusal posterior favorezca el desplazamiento protrusivo de la mandíbula.

  11. Review of molar tooth structure research

    Directory of Open Access Journals (Sweden)

    Hong-Wei Kuang

    2014-10-01

    Full Text Available For more than a century, molar tooth structure (MTS has been studied. The study developed in three stages. During the first stage (before 1980, researchers described three basic morphologies of MTS, mainly from the Belt Supergroup in North America, and they provided several hypotheses for the origin of MTS. During the second stage (1980–1999, the frequent discoveries of MTS on all continents resulted in many detailed descriptions of their shape and in several hypotheses concerning the origin of MTS. Notably, hypotheses of MTS’s origin such as seismic activity and biological activity were developed. Since 2000, research has progressed into a new stage (the third stage. This is due to discoveries of MTS in the Meso–Neoproterozoic of China and elsewhere, and the ongoing debate on the seismic or biological origin is replaced by a hypothesis that involves gas expansion and chemically-controlled carbonate precipitation (both of them possibly affected by biological activities. This latter idea has gradually been commonly recognized as the mainstream theory. Despite continued disagreements, researchers now agree that microsparry calcite played a controlling role regarding the development and the global distribution of MTS in time and space during the Proterozoic, the morphological diversity, and the impact on the sedimentary environment. The present contribution analyses the three major hypotheses regarding the origin of MTS; it also discusses the shortcomings of the hypotheses regarding a seismic or biologic origin, and it details the modern hypothesis that links formation of cracks to the precipitation of sparry calcite. It is deduced that important questions dealing with the Precambrian can be answered, among other aspects regarding the depositional palaeogeography and stratigraphic correlations.

  12. Preformed crowns for decayed primary molar teeth.

    Science.gov (United States)

    Innes, Nicola P T; Ricketts, David; Chong, Lee Yee; Keightley, Alexander J; Lamont, Thomas; Santamaria, Ruth M

    2015-12-31

    Crowns for primary molars are preformed and come in a variety of sizes and materials to be placed over decayed or developmentally defective teeth. They can be made completely of stainless steel (know as 'preformed metal crowns' or PMCs), or to give better aesthetics, may be made of stainless steel with a white veneer cover or made wholly of a white ceramic material. In most cases, teeth are trimmed for the crowns to be fitted conventionally using a local anaesthetic. However, in the case of the Hall Technique, PMCs are pushed over the tooth with no local anaesthetic, carious tissue removal or tooth preparation. Crowns are recommended for restoring primary molar teeth that have had a pulp treatment, are very decayed or are badly broken down. However, few dental practitioners use them in clinical practice. This review updates the original review published in 2007. Primary objectiveTo evaluate the clinical effectiveness and safety of all types of preformed crowns for restoring primary teeth compared with conventional filling materials (such as amalgam, composite, glass ionomer, resin modified glass ionomer and compomers), other types of crowns or methods of crown placement, non-restorative caries treatment or no treatment. Secondary objectiveTo explore whether the extent of decay has an effect on the clinical outcome of primary teeth restored with all types of preformed crowns compared with those restored with conventional filling materials. We searched the following electronic databases: Cochrane Oral Health Group Trials Register (to 21 January 2015), Cochrane Central Register of Controlled Trials (CENTRAL; The Cochrane Library, 2014, Issue 12), MEDLINE via Ovid (1946 to 21 January 2015) and EMBASE via Ovid (1980 to 21 January 2015). We searched the US National Institutes of Health Trials Register (http://clinicaltrials.gov) and the World Health Organization (WHO) International Clinical Trials Registry Platform for ongoing trials and Open Grey for grey literature (to

  13. Morbilidad de la extracción de los terceros molares en pacientes entre los 12 y 18 años de edad

    OpenAIRE

    Chaparro Avendaño, Angie V.; Pérez-García, Sílvia; Valmaseda Castellón, Eduardo; Berini Aytés, Leonardo; Gay Escoda, Cosme

    2005-01-01

    Objetivo: El propósito de este estudio fue analizar la incidencia de complicaciones después de la extracción quirúrgica de los terceros molares en pacientes de 12 a 18 años de edad. Pacientes y método: Se realizó un estudio retrospectivo de 390 extracciones quirúgicas de terceros molares superiores e inferiores en 173 pacientes en edades comprendidas entre los 12 y 18 años de edad, intervenidos bajo anestesia locorregional en el año 2000 en el Máster de Cirugía Bucal e Implantología Bucofacia...

  14. An alternative approach to extruding a vertically impacted lower third molar using an orthodontic miniscrew: A case report with cone-beam CT follow-up

    Energy Technology Data Exchange (ETDEWEB)

    Cortes, Arthur Rodriguez Gonzales; Cavalcanti, Marcelo Gusmaeo Paraiso; Arita, Emiko Saito [Dept. of Oral Radiology, School of Dentistry, University of Saeo Paulo, Saeo Paulo (Brazil); No-Cortes, Julian [Orthodontic Clinic, Saeo Paulo (Brazil)

    2014-06-15

    One of the most common oral surgical procedures is the extraction of the lower third molar (LTM). Postoperative complications such as paresthesia due to inferior alveolar nerve (IAN) injury are commonly observed in cases of horizontal and vertical impaction. The present report discusses a case of a vertically impacted LTM associated with a dentigerous cyst. An intimate contact between the LTM roots and the mandibular canal was observed on a panoramic radiograph and confirmed with cone-beam computed tomographic (CBCT) cross-sectional cuts. An orthodontic miniscrew was then used to extrude the LTM prior to its surgical removal in order to avoid the risk of inferior alveolar nerve injury. CBCT imaging follow-up confirmed the success of the LTM orthodontic extrusion.

  15. Mandibular second molar periodontal healing after impacted third molar extraction in young adults.

    Science.gov (United States)

    Faria, Ana Inocêncio; Gallas-Torreira, Mercedes; López-Ratón, Mónica

    2012-12-01

    To estimate the prevalence of preoperative periodontal defects and analyze 12-month spontaneous healing on the distal aspect of the mandibular second molar (M2) after impacted mandibular third molar (M3) extraction. This prospective clinical study was conducted in 25 healthy young patients (21.03 ± 4.38 yr old) with 40 extractions of higher-risk periodontal impacted M3s. Plaque and gingival indexes, recession, bleeding on probing, probing depth (PD), and attachment level were recorded before surgery and at 3, 6, and 12 months after surgery at 5 sites on the distal aspect of the M2. The initial mean PD was 5.70 ± 3.80 mm, with the deepest mean PD at the lingual side. At 12 months, a mean PD average of 3.77 ± 2.86 mm was recorded, with a total average recovery of 1.93 ± 2.46 mm (P periodontal defects that are deepest at the lingual side and almost recover at 12 months after extraction. The first 3 months is considered the cutoff for periodontal healing. Young adults with high-risk periodontal M3 impactions may benefit from early extraction, which increases spontaneous periodontal healing. Copyright © 2012 American Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved.

  16. Hipomineralização molar-incisivo = Molar incisor hypomineralization

    Directory of Open Access Journals (Sweden)

    Basso, Ana Paula

    2007-01-01

    Full Text Available A hipomineralização-molar incisivo (HMI é um defeito de origem sistêmica no esmalte dentário de primeiros molares e incisivos permanentes. Nesta condição, o esmalte hipomineralizado é frágil e pode se destacar facilmente, deixando a dentina exposta e causando, assim, problemas como sensibilidade dentária e maior risco ao estabelecimento de lesões de cárie. A HMI é freqüentemente confundida com fluorose ou amelogênese imperfeita e sua prevalência varia de 3,6 a 25%. Vários fatores etiológicos são citados para a condição e estão freqüentemente relacionados com doenças na infância nos primeiros três anos de vida. O tratamento envolve desde a restauração dos dentes afetados com materiais adesivos ou até mesmo a extração dos mesmos, dependendo da severidade do caso

  17. Prevalência de perda precoce de molares decíduos: estudo retrospectivo - DOI: 10.4025/actascihealthsci.v30i2.3943 Prevalence of early loss of deciduous molars: a retrospective study - DOI: 10.4025/actascihealthsci.v30i2.3943

    Directory of Open Access Journals (Sweden)

    Ana Flávia Granville-Garcia

    2008-12-01

    Full Text Available Este estudo retrospectivo determinou a prevalência da perda precoce de molares decíduos em pacientes atendidos na clínica de Odontopediatria da Universidade Estadual da Paraíba. Foram examinados 515 prontuários, sendo os dados registrados em um formulário. Foram analisadas as variáveis: gênero, idade, tipo de molar decíduo perdido, arcada dentária (maxilar ou mandibular e lado (direito e esquerdo. Observou-se que a prevalência de perda precoce foi de 15,1%, existindo uma distribuição similar entre os gêneros. Em relação à idade da criança, a maior freqüência de perda acometeu pacientes com sete anos (32,1%. Houve distribuição equitativa da perda dentária entre as arcadas superior e inferior, com 43,6% cada uma, sendo o lado esquerdo o mais acometido (41%. O segundo molar superior esquerdo foi o mais acometido (17,9%, seguido do primeiro molar decíduo superior direito (16,1%. Pode-se concluir que a prevalência de perda precoce foi baixa e que os molares decíduos superiores foram os dentes mais comumente perdidos.This retrospective study determined the prevalence of early loss of deciduous molars in patients enrolled at the Pediatric Dentistry clinic at the State University of Paraíba. A review of 515 patient records were analyzed, registered in a form. The following variables were analyzed: gender, age, type of deciduous molar loss, region (maxilla or mandible and side (right and left. It was observed that the prevalence of early tooth loss was 15.1% and there was a similar distribution between the genders. In regard to age, the greatest frequency of tooth loss involved patients at 7 years old (32.1%. There was a similar distribution of tooth loss between the maxilla and mandible regions, at 43.6% each, with the left side being the most involved (41%. The second upper left deciduous molar was the most commonly missing tooth (17.9%, followed by the first upper right deciduous molar (16.1%. It can be concluded that the

  18. Quality of analgesia after lower third molar surgery: A randomised, double-blind study of levobupivacaine, bupivacaine and lidocaine with epinephrine

    Directory of Open Access Journals (Sweden)

    Brajković Denis

    2015-01-01

    Full Text Available Background/Aim. Surgical extraction of lower third molars is followed by mild or severe postoperative pain which peaks at maximal intensity in the first 12 hours and has a significant impact on a patient’s postoperative quality of life. The use of long-acting local anaesthetics is a promising strategy to improve postoperative analgesia. The aim of the present study was to investigate analgesic parameters and patient satisfaction after using 0.5% levobupivacaine (Lbup, 0.5% bupivacaine (Bup and 2% lidocaine with epinephrine 1:80,000 (Lid + Epi for an inferior alveolar nerve block following lower third molar surgery. Methods. A total of 102 patients (ASA I were divided into three groups, each of which received either 3 mL of Lbup, Bup or Lid + Epi. The intensity of postoperative analgesia was measured using a verbal rating scale (VRS. The total amounts of rescue analgesics were recorded on the first and during seven postoperative days. Patients satisfaction was noted using a modified verbal scales. Results. A significantly higher level of postoperative pain was recorded in Lid + Epi group compared to Bup and Lbup groups. No significant differences were seen between Bup and Lbup, but a significant reduction in the need for rescue analgesics was seen postoperatively in both Lbup and Bup (50% in comparison with Lid + Epi (80% in the first 24 hours. The same significant trend in rescue analgesic consumption was recorded for seven postoperative days. Patients’ overall satisfaction was significantly lower for Lid + Epi (10% than for Lbup (56% and Bup (52%. Conclusion. The use of a new and long-acting local anaesthetic 0.5% levobupivacaine is clinically relevant and effective for an inferior alveolar nerve block and postoperative pain control after third molar surgery. In our study Lbup and Bup controled postoperative pain more efficiently after lower third molar surgery compared to Lid + Epi. [Projekat Ministarstva nauke Republike Srbije, br. 175021

  19. Excess Molar Volume of Binary Systems Containing Mesitylene

    Directory of Open Access Journals (Sweden)

    Morávková, L.

    2013-05-01

    Full Text Available This paper presents a review of density measurements for binary systems containing 1,3,5-trimethylbenzene (mesitylene with a variety of organic compounds at atmospheric pressure. Literature data of the binary systems were divided into nine basic groups by the type of contained organic compound with mesitylene. The excess molar volumes calculated from the experimental density values have been compared with literature data. Densities were measured by a few experimental methods, namely using a pycnometer, a dilatometer or a commercial apparatus. The overview of the experimental data and shape of the excess molar volume curve versus mole fraction is presented in this paper. The excess molar volumes were correlated by Redlich–Kister equation. The standard deviations for fitting of excess molar volume versus mole fraction are compared. Found literature data cover a huge temperature range from (288.15 to 343.15 K.

  20. Impacted Mandibular Third Molars: Review of Literature and a ...

    African Journals Online (AJOL)

    Impacted Mandibular Third Molars: Review of Literature and a Proposal of a Combined ... Annals of Medical and Health Sciences Research ... has a PDF reader plug-in installed (for example, a recent version of Adobe Acrobat Reader).

  1. Prediction of postoperative pain after mandibular third molar surgery

    DEFF Research Database (Denmark)

    Rudin, Asa; Eriksson, Lars; Liedholm, Rolf

    2010-01-01

    To evaluate the predictive potential of preoperative psychological and psychophysiological variables in estimating severity of postoperative pain following mandibular third molar surgery (MTMS). Methods: Following ethical committee approval and informed consent, 40 consecutive patients scheduled...

  2. Vernal keratoconjunctivitis with giant papillae on the inferior tarsal conjunctiva.

    Science.gov (United States)

    Asada, Yosuke; Ebihara, Nobuyuki; Funaki, Toshinari; Yokoi, Norihiko; Murakami, Akira; Matsuda, Akira

    2014-01-01

    In vernal keratoconjunctivitis (VKC), giant papillae are commonly observed on the superior tarsal conjunctiva. We found 3 cases of giant papillae on the inferior tarsal conjunctiva, and diagnosed them as being VKC based on their clinical and histopathological features. Three patients with inferior tarsal giant papillae were studied. In 2 patients, the giant papillae were resected for therapeutic purposes. Immunohistochemical analysis was carried out by indirect immunofluorescent staining using anti-CD3, anti-CD20, anti-CD35 antibodies. In all 3 patients, giant papilla formation was observed on the inferior lid margin. Clusters of CD20 B lymphocytes with CD35 follicular dendritic cells, and CD3 marginal zone T lymphocytes, common features of lymphoid neogenesis, were observed. In 2 patients, typical giant papillary formation was also observed on the superior tarsal conjunctiva. In all the patients, topical dexamethasone and tacrolimus treatments were found to be effective. The giant papillae of VKC can occur not only on the superior tarsal conjunctiva but also on the inferior tarsal conjunctiva. The possibility of the presence of giant papillae on the inferior tarsal conjunctiva should be considered in the clinical examination of patients with VKC.

  3. Estudo in vitro da resistência ao cisalhamento da colagem direta de tubos ortodônticos em molares In vitro study of shear bond strength in direct bonding of orthodontic molar tubes

    Directory of Open Access Journals (Sweden)

    Célia Regina Maio Pinzan Vercelino

    2011-06-01

    Full Text Available INTRODUÇÃO: apesar da colagem direta despender menor tempo clínico, com maior preservação da integridade gengival, ainda hoje se observa uma alta incidência de bandagem dos molares. Portanto, torna-se interessante a idealização de recursos para o aumento da eficiência desse procedimento para dentes submetidos a maiores impactos mastigatórios, como, por exemplo, os molares. OBJETIVO: esse estudo teve o propósito de avaliar se a resistência à adesão com a aplicação de uma camada de resina adicional na região oclusal da interface tubo/dente aumenta a qualidade do procedimento de colagem direta de tubos em molares. MÉTODOS: selecionou-se uma amostra composta por 40 terceiros molares inferiores, que foram aleatoriamente divididos em 2 grupos: Grupo 1 - colagem direta convencional, seguida pela aplicação de uma camada de resina na oclusal da interface tubo/dente; e Grupo 2 - colagem direta convencional. O teste de resistência ao cisalhamento foi realizado 24 horas após a colagem, utilizando-se uma máquina de ensaio universal, operando a uma velocidade de 0,5mm/min. Os resultados foram analisados por meio do teste t independente. RESULTADOS: os valores médios obtidos nos testes de cisalhamento foram: 17,08MPa para o Grupo 1 e 12,60MPa para o Grupo 2. O Grupo 1 apresentou uma resistência ao cisalhamento estatisticamente significativa mais alta do que o Grupo 2. CONCLUSÃO: a aplicação de uma camada adicional de resina na oclusal da interface tubo/dente aumenta a qualidade da adesão do procedimento de colagem direta de tubos ortodônticos em molares.OBJECTIVE: Although direct bonding takes up less clinical time and ensures increased preservation of gingival health, the banding of molar teeth is still widespread nowadays. It would therefore be convenient to devise methods capable of increasing the efficiency of this procedure, notably for teeth subjected to substantial masticatory impact, such as molars. This study was

  4. Managing molar-incisor hypomineralization: A systematic review.

    Science.gov (United States)

    Elhennawy, Karim; Schwendicke, Falk

    2016-12-01

    We systematically reviewed treatment modalities for MIH-affected molars and incisors. Trials on humans with ≥1 MIH molar/incisor reporting on various treatments were included. Two authors independently searched and extracted records. Sample-size-weighted annual failure rates were estimated where appropriate. The risk of bias was assessed using the Newcastle-Ottawa scale. Electronic databases (PubMed, Embase, Cochrane CENTRAL, Google Scholar) were screened, and hand searches and cross-referencing performed. Fourteen (mainly observational) studies were included. Ten trials (381 participants) investigated MIH-molars, four (139) MIH-incisors. For molars, remineralization, restorative or extraction therapies had been assessed. For restorative approaches, mean (SD) annual failure rates were highest for fissure sealants (12[6]%) and glass-ionomer restorations (12[2]%), and lowest for indirect restorations (1[3]%), preformed metal crowns (1.3 [2.1]%) and composite restorations (4[3]%). Ony study assessed extraction of molars in young patients (median age 8.2 years), the majority of them without malocclusions, but third molars in development. Spontaneous alignment of second molars was more frequent in the maxilla (55%) than the mandible (47%). For incisors, desensitizing agents successfully managed hypersensitivity. Micro-abrasion and composite veneers improved aesthetics. Few, mainly moderate to high-risk-studies investigated treatment of MIH. Remineralization or sealants seem suitable for MIH-molars with limited severity and/or hypersensitivity. For severe cases, restorations with composites or indirect restorations or preformed metal crowns seem suitable. Prior to tooth extraction as last resort factors like the presence of a general malocclusion, patients' age and the status of neighboring teeth should be considered. No recommendations can be given for MIH-incisors. Dentists need to consider the specific condition of each tooth and the needs and expectations of

  5. Fusion or gemination? An unusual mandibular second molar

    Directory of Open Access Journals (Sweden)

    Angela Jordão Camargo

    2016-01-01

    Full Text Available Fusion and gemination is not an uncommon finding and affected most primary dentition and the permanent maxillary incisors. These changes can develop a series of complication. A 11-year-old male presented radiography finding: an unusual mandibular second molar. A well-documented case brings a challenge for radiologists classify between fusion and gemination. In conclusion, this alteration although common in other regions, there are no case in the literature involving “second and third” molar.

  6. Anxiety before extraction of impacted lower third molars

    OpenAIRE

    Tarazona Álvarez, Beatriz; Tarazona Álvarez, Pablo; Peñarrocha Oltra, David; Rojo Moreno, Juan; Peñarrocha Diago, María

    2015-01-01

    Objetives: Assess levels of trait anxiety, state anxiety and dental anxiety before extraction of lower third molars and check the correlation and reliability of the scales used for the measurement of preoperative anxiety. Study Design: A prospective study of patients treated with extraction of a lower third molar between September 2010 to December 2010 was carried out. A total of 125 patients were included in the study. All of them were patients of the Oral Surgery and Implantology Department...

  7. A retrospective study of sodium hypochlorite pulpotomies in primary molars

    OpenAIRE

    Li, Tzu-Ying; Chuang, Li-Chuan; Aileen I Tsai

    2016-01-01

    Background/purpose: Formocresol has been a popular pulpotomy medicament for primary molars, however, its toxicity and potential carcinogenicity leaves room for other alternatives such as sodium hypochlorite (NaOCl). The purpose of this study is to evaluate the clinical and radiographic success rate of 5% NaOCl pulpotomy in primary molars. Materials and methods: A retrospective research of patient records from January 1, 2009 and December 31, 2012 was conducted to evaluate the clinical and ...

  8. Effect of preoperative alprazolam on the success of inferior alveolar nerve block for teeth with irreversible pulpitis.

    Science.gov (United States)

    Khademi, Abbas Ali; Saatchi, Masoud; Minaiyan, Mohsen; Rostamizadeh, Nasim; Sharafi, Fatemeh

    2012-10-01

    Success of inferior alveolar nerve (IAN) block decreases in patients with irreversible pulpitis. The purpose of this study was to evaluate the effect of preoperative administration of alprazolam on the success of the IAN block for teeth with irreversible pulpitis. Sixty patients with irreversible pulpitis of a mandibular molar were selected for this prospective, randomized, double-blind, placebo-controlled study. The patients received identical capsules of either 0.5 mg of alprazolam or placebo 45 minutes before the administration of a conventional IAN block. Access cavity preparation was initiated 15 minutes after the IAN block injection. Lip numbness was recorded for all the patients. Success was defined as no or mild pain on the basis of visual analogue scale recordings during access cavity preparation and initial instrumentation. Data were analyzed by t test, Mann-Whitney, and χ(2) tests. The success rate was 53% for alprazolam group and 40% for placebo group, with no significant difference between the 2 groups (P = .301). Within the scope of the current study, preoperative oral administration of 0.5 mg of alprazolam did not improve the success of the IAN block in mandibular molars in patients with irreversible pulpitis, and the success rate was not adequate to ensure profound pulpal anesthesia. Copyright © 2012 American Association of Endodontists. Published by Elsevier Inc. All rights reserved.

  9. Prevalence of Taurodont molars in a North Indian population.

    Science.gov (United States)

    Bharti, Ramesh; Chandra, Anil; Tikku, Aseem Prakash; Arya, Deeksha

    2015-01-01

    It is very important for dentists to be familiar with anomalies of teeth not only for the clinical complications but also their management. Taurodontism also provides a valuable clue in detecting its association with various syndromes and other systemic conditions. The purpose of this study was to assess the prevalence of Taurodont molars among a North Indian population. A total of 1000 patients' full-mouth periapical radiographs were screened. The radiographs were evaluated under optimal conditions using double magnifying glasses. A total of 7615 molars (including third molars) were evaluated. The relative incidence and the correlations regarding the location of Taurodont teeth (right versus left side and maxillary versus mandibular) were analyzed using the Chi-square test. Twenty-eight patients were found to have a Taurodont molar (11 women and 17 men [P = 0.250]). The prevalence of Taurodont molar was 2.8%. Males had a higher prevalence rate than females (3.4% vs. 2.2%, respectively). A cluster analysis of total Taurodonts in the mandible (45%) versus maxilla (55%) of both males and females combined showed a statistically significant difference (P Taurodontism is basically based on racial expression in different populations. These variations in prevalence between different populations may be due to ethnic variations. The occurrence of Taurodont molars among this Indian population was rare.

  10. Caries Management Strategies for Primary Molars

    Science.gov (United States)

    Santamaria, R.M.; Innes, N.P.T.; Machiulskiene, V.; Evans, D.J.P.; Splieth, C.H.

    2014-01-01

    Minimal invasive approaches to managing caries, such as partial caries removal techniques, are showing increasing evidence of improved outcomes over the conventional complete caries removal. There is also increasing interest in techniques where no caries is removed. We present the 1-yr results of clinical efficacy for 3 caries management options for occlusoproximal cavitated lesions in primary molars: conventional restorations (CR; complete caries removal and compomer restoration), Hall technique (HT; no caries removal, sealing in with stainless steel crowns), and nonrestorative caries treatment (NRCT; no caries removal, opening up the cavity, teaching brushing and fluoride application). In sum, 169 children (3-8 yr old; mean, 5.56 ± 1.45 yr) were enrolled in this secondary care–based, 3-arm, parallel-group, randomized clinical trial. Treatments were carried out by specialist pediatric dentists or postgraduate trainees. One lesion per child received CR, HT, or NRCT. Outcome measures were clinical failure rates, grouped as minor failure (restoration loss/need for replacement, reversible pulpitis, caries progression, etc.) and major failure (irreversible pulpitis, abscess, etc.). There were 148 children (87.6%) with a minimum follow-up of 11 mo (mean, 12.23 ± 0.98 mo). Twenty teeth were recorded as having at least 1 minor failure: NRCT, n = 8 (5%); CR, n = 11 (7%); HT, n = 1 (1%) (p = .002, 95% CI = 0.001 to 0.003). Only the comparison between NRCT and CR showed no significant difference (p = .79, 95% CI = 0.78 to 0.80). Nine (6%) experienced at least 1 major failure: NRCT, n = 4 (2%); CR, n = 5 (3%); HT, n = 0 (0%) (p = .002, 95% CI = 0.001 to 0.003). Individual comparison of NRCT and CR showed no statistically significant difference in major failures (p = .75, 95% CI = 0.73 to 0.76). Success and failure rates were not significantly affected by pediatric dentists’ level of experience (p = .13, 95% CI = 0.12 to 0.14). The HT was significantly more successful

  11. Incorporación de la asignatura de tercer ciclo "Técnicas y métodos de investigación jurídica comparada" al campus virtual

    OpenAIRE

    Palomino Lozano, Rafael

    2005-01-01

    Mediante la herramienta informática «Campus Virtual» se dinamiza una asignatura de tercer ciclo que tiene por objeto analizar la metodología de trabajo y el desarrollo de estrategias en la investigación jurídica.

  12. Importancia de las organizaciones del tercer sector (OTS) como fuente de desarrollo social, desarrollo económico global y su situación actual en México

    National Research Council Canada - National Science Library

    Damián Aarón Porras Flores

    2013-01-01

    Artículo reseñadoDurán Bravo, P. y Fernández Fuentes, M.B. (2010): "La comunicación en las organizaciones del tercer sector", en Revista Latina de Comunicación Social, 65. La Laguna (Tenerife...

  13. Jóvenes y tercer sector de medios en España: Formación en comunicación y cambio social/Youth and the Third Sector Media in Spain: Communication and Social Change Training

    National Research Council Canada - National Science Library

    Isabel Lema-Blanco; Eduardo-Francisco Rodríguez-Gómez; Alejandro Barranquero-Carretero

    2016-01-01

    ... demuestran que los medios del tercer sector act?an como valiosas herramientas para la adquisici?n de habilidades y competencias cr?ticas que pueden transferirse a la esfera profesional y vivencial de los j?venes, dada la identificaci?n de estos medios con los intereses, problem?ticas y aspiraciones juveniles. En un sentido amplio, estas iniciativas contribuy...

  14. Symptomatic duodenal perforation by inferior vena cava filter.

    Science.gov (United States)

    Baptista Sincos, Anna Pw; Sincos, Igor R; Labropoulos, Nicos; Donegá, Bruno C; Klepacz, Andrea; Aun, Ricardo

    2017-01-01

    Objectives Duodenal perforation by an inferior vena cava filter is rare and life threatening. Our objective is to find out number of occurrences and compare diagnosis and treatments. Method The reference list of Malgor's review in 2012 was considered as well as all new articles with eligible features. Search was conducted on specific databases: MEDLINE, Web of Sciences, and Literatura Latino-Americana e do Caribe em Ciências da Saúde. Results Most of the patients presented with upper abdominal pain and the use of radiologic studies was crucial for diagnosis. The most common treatment was laparotomy with filter or strut removal plus duodenum repair. However, clinical conditions of patients must be considered and the endovascular technique with endograft deployment into inferior vena cava may be an alternative. Conclusion Duodenal perforation by an inferior vena cava filter is uncommon and in high-risk surgical patients endovascular repair must be considered.

  15. Isquemia aguda de miembros inferiores secundaria a ergortismo

    Directory of Open Access Journals (Sweden)

    Franco J. Vallejo, MD

    2011-11-01

    Full Text Available Paciente de género femenino, de 21 años de edad, quien ingresó por dolor progresivo e intenso en miembros inferiores, y refirió antecedente reciente de ingestión de derivados del ergot. Al examen físico se observó ausencia de pulsos en ambos miembros inferiores. Por angiotomografia se documentó disminución severa, generalizada y bilateral, del calibre de los vasos arteriales de miembros inferiores. Se diagnosticó isquemia arterial aguda secundaria a ergotismo y se inició tratamiento con vasodilatadores y calcio-antagonistas, que resolvió los síntomas en su totalidad.

  16. Adaptive coupling of inferior olive neurons in cerebellar learning.

    Science.gov (United States)

    Tokuda, Isao T; Hoang, Huu; Schweighofer, Nicolas; Kawato, Mitsuo

    2013-11-01

    In the cerebellar learning hypothesis, inferior olive neurons are presumed to transmit high fidelity error signals, despite their low firing rates. The idea of chaotic resonance has been proposed to realize efficient error transmission by desynchronized spiking activities induced by moderate electrical coupling between inferior olive neurons. A recent study suggests that the coupling strength between inferior olive neurons can be adaptive and may decrease during the learning process. We show that such a decrease in coupling strength can be beneficial for motor learning, since efficient coupling strength depends upon the magnitude of the error signals. We introduce a scheme of adaptive coupling that enhances the learning of a neural controller for fast arm movements. Our numerical study supports the view that the controlling strategy of the coupling strength provides an additional degree of freedom to optimize the actual learning in the cerebellum. Copyright © 2012 Elsevier Ltd. All rights reserved.

  17. Prevalence of missing and impacted third molars in adults aged 25 years and above

    Energy Technology Data Exchange (ETDEWEB)

    Jung, Yun Hoa; Cho, Bong Hae [Dept. of Oral and Maxillofacial Radiology, School of Dentistry, Pusan National University, Yansan (Korea, Republic of)

    2013-12-15

    The purpose of this study was to determine the prevalence of missing and impacted third molars in people aged 25 years and above. The study sample of 3,799 patients was chosen randomly from patients who visited Pusan National University Dental Hospital and had panoramic radiographs taken. The data collected included presence and impaction state, angulation, and depth of impaction of third molars, and radiographically detected lesions of third molars and adjacent second molars. A greater percentage of men than women retained at least one third molar. The incidence of third molars decreased with increasing age. The incidence of partially impacted third molars greatly declined after the age of 30. Vertically impacted maxillary third molars and horizontally impacted mandibular third molars were most frequent in all age groups. Among the maxillary third molars, those impacted below the cervical line of the second molar were most frequent in all age groups, and among the mandibular third molars, deeply impacted third molars were most frequent in those aged over 40. Dental caries was the most common radiographic lesion of the third molars. Mesioangularly impacted third molars showed radiographic lesions in 13 (9.5%) adjacent maxillary second molars and 117 (27.4%) mandibular second molars. The number of remaining third molars decreased and the percentage of Class C depth increased with age. Caries was the most frequent lesion in third molars. Partially impacted mesioangular third molars showed a high incidence of caries or periodontal bone loss of the adjacent second molar. Regular oral examination will be essential to keep asymptomatic third molars in good health.

  18. Agenesia de veia cava inferior associada à trombose venosa profunda Agenesis of inferior vena cava associated with deep venous thrombosis

    Directory of Open Access Journals (Sweden)

    Clovis Luis Konopka

    2010-09-01

    Full Text Available A agenesia da veia cava inferior é uma anomalia congênita rara, que foi recentemente identificada como um importante fator de risco para o desenvolvimento e a recorrência de trombose venosa profunda de membros inferiores em jovens. O objetivo deste trabalho foi relatar o caso de uma paciente que apresentou trombose venosa profunda dois meses após a realização de cirurgia de varizes. A angiotomografia computadorizada demonstrou a presença de anomalia venosa complexa com ausência da veia cava inferior.The agenesis of the inferior vena cava is a rare congenital anomaly, which was recently identified as an important risk factor for the development and recurrence of deep venous thrombosis especially in young people. The goal of this work was to report the case of a patient who presented deep venous thrombosis approximately two months after varicose vein surgery. The computerized angiotomography demonstrated the presence of a complex venous anomaly with absence of the inferior vena cava.

  19. Cómo escribir sobre una técnica de la oración. El Tercer abecedario espiritual de Francisco de Osuna

    Directory of Open Access Journals (Sweden)

    Iris Roebling-Grau

    2015-12-01

    Full Text Available El libro espiritual más difundido del siglo XVI, el Tercer abecedario espiritual de Francisco de Osuna, aprovechó como ningún otro las posibilidades que brindaba la técnica de la imprenta. Lo demuestra su uso de la estructura en abecedario, que facilita la memorización y, por tanto, la internalización del texto devoto. En este sentido, las técnicas empleadas por Osuna contrastan con las que prefirió una contemporánea, Teresa de Ávila, que buscó que su texto impresionara a los lectores fomentando la identificación entre ellos y la autora.

  20. Pseudo-dissection of ascending aorta in inferior myocardial infarction.

    Directory of Open Access Journals (Sweden)

    Grahame K. Goode

    2011-06-01

    Full Text Available Acute aortic dissection is a cardiac emergency which can present as inferior myocardial infarction. It has high morbidity and mortality requiring prompt diagnosis and treatment. Rapid advances in noninvasive imaging modalities have facilitated the early diagnosis of this condition and in ruling out this potentially catastrophic illness. We report an interesting case of a 57 year- old -man who presented with inferior myocardial infarction requiring thrombolysis and temporary pacing wire for complete heart block. An echocardiogram was highly suspicious of aortic dissection. CT scan confirmed that the malposition of the temporary pacing wire through the aorta mimicked aortic dissection.

  1. Abordagem fisioterapêutica do linfedema bilateral de membros inferiores

    OpenAIRE

    Tacani, Pascale Mutti; Machado, Aline Fernanda Perez; Tacani, Rogério Eduardo

    2012-01-01

    INTRODUÇÃO: O linfedema é um acúmulo de proteína no interstício em virtude de deficiência do sistema linfático, sendo recomendada a utilização da Terapia Física Complexa como forma de tratamento. OBJETIVO: Verificar os efeitos da Terapia Física Complexa no tratamento e na manutenção do linfedema bilateral de membros inferiores. MÉTODOS: Participaram deste estudo sete pacientes com linfedema bilateral nos membros inferiores, de faixa etária entre 59 e 85 anos, os quais foram submetidos a: 1ª a...

  2. Tercer Sector e innovación: experiencias, desafíos y oportunidades Third sector and innovation: experiences, challenges and opportunities

    Directory of Open Access Journals (Sweden)

    Alfonso Carlos Morales Gutiérrez

    2011-05-01

    Full Text Available El presente trabajo se plantea analizar diversos casos de comportamientos innovadores en el Tercer Sector en los que se muestra especialmente la potencialidad de las nuevas tecnologías de la información y de la comunicación. Para este objetivo se han desarrollado una serie de etapas. En un primer término se exponen algunos rasgos específicos de la innovación en el Tercer Sector que ayuden a comprenderla en su contexto. En segundo lugar se proponen diferentes tipos de innovación que son susceptibles de ser desarrollados por este tipo de instituciones ilustrándolos con algunos ejemplos recientes. Por último, finalizamos con una serie de conclusiones y reflexiones sobre la necesidad y la oportunidad de situar en la agenda institucional la innovación a un nivel estratégico, y, por lo tanto, no sólo como un deseo sino como una prioridad.The present study aims to analyze various cases of innovative behaviour in the third sector which exploit the potential of the new information and communication technologies. The study is divided into several stages. First we list some specific features of innovation in the third sector, which help to understand this innovation in its context. Second, we describe various types of innovation that can be implemented by these sorts of institution and illustrate them with some recent examples. Finally we finish with a series of conclusions and reflections about the need for institutions to plan for innovation at the strategic level and, therefore, focus on it not as something desirable but as a priority.

  3. Orthodontic Replacement of Lost Permanent Molar with Neighbor Molar: A Six-Year Follow-Up

    Directory of Open Access Journals (Sweden)

    Taisa Boamorte Raveli

    2017-01-01

    Full Text Available Extraction is very frequent indication in orthodontic planning, especially when there are crowding, biprotrusion, and aesthetically unpleasant profiles. Next to extraction comes space closure, which represents a challenge for orthodontists because of extended treatment time, discomfort created for the patient, tissue tolerance, and stability concerns. When it comes to what mechanics to choose for space closure, loops present two major advantages in relation to sliding mechanics: absence of abrasion and possibility to reach pure dental translation. A case is presented where an adult female patient with early loss of the first lower permanent molars, minor lower crowding, and tooth biprotrusion was treated with upper first bicuspids extraction along with upper and lower space closure done with T-loops to promote best space closure control in order to correct the malocclusion and enhance facial aesthetics.

  4. Pattern of third molar impaction in a Saudi population

    Directory of Open Access Journals (Sweden)

    Ali H Hassan

    2010-10-01

    Full Text Available Ali H Hassan11Department of Preventive Dental Sciences, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi ArabiaObjective: To evaluate the current pattern of third molar impaction in a sample of Saudi patients.Methods: One thousand thirty-nine orthopantomograms (OPG of patients ranging in age from 19 to 46 years (536 males and 503 females were evaluated to determine the frequency of impacted third molars, their levels of eruption, and their angulations.Results: Four hundred twenty-two (40.5% of the 1039 OPG showed at least one impacted third molar, with no significant difference between males (222; 52.6% and females (200; 47.4% (P = 0.284. The most common number of impacted third molars per OPG was one (72.5%. Impacted third molars were 1.64 times more likely to occur in the mandible than in the maxilla. The most common angulation of impaction in the mandible was the mesial (33.4%, while the most common angulation in the maxilla, was the vertical (49.6%. Level B impaction was the most common in both maxilla (48.2% and mandible (67.7%. There was no significant difference in the frequency of impaction between the right and left sides in both jaws.Conclusion: The pattern of third molar impaction in the western region of Saudi Arabia is characterized by a high prevalence of impaction that is greater in the mandibles and with no sex predilection.Keywords: third molar, impaction, prevalence, Saudi 

  5. Molar Intrusion in Open-bite Adults Using Zygomatic Miniplates.

    Science.gov (United States)

    Marzouk, Eiman S; Abdallah, Essam Mohamed; El-Kenany, Walid A

    2015-01-01

    The aim of this study is to evaluate the skeletal, dental and soft tissue changes that arise after intrusion of the maxillary molars using zygomatic miniplates in adult skeletal anterior open bite patients. In addition to measuring the amount and rate of molar intrusion; with special emphasis on changes in the axial inclination of the intruded molars. The study group was composed of 13 anterior open bite patients (mean age 18 years, 8 months ± 2 years, 2 months) with posterior dentoalveolar excess. Mini-plates were placed in the zygomatic buttress bilaterally. The upper arch was segmentally leveled and a double Trans-Palatal Arch (TPA) was bonded. Closed NiTi coil spring was placed bilaterally between the book of the mini-plate just mesial and distal to the first molar buccal tube applying intrusive force of 450 gper side. Lateral and posteroanterior cephalograms were taken before intrusion (T1: post upper segmental leveling) and after intrusion (T2). Comparison between means before and after the intrusion was done using Wilcoxon Signed Ranks test (WSRT). Mandibular autorotation followed the molar intrusion, SNB and SN-Pog angles significantly increased while the ANB, MP-SN angle and N-S-Gn angle significantly decreased. The mean amount of accomplished molar intrusion was 3.1mm ± 0.74mm, with a rate of 0.36mm per month ± 0.08mm per month and a bite closure of 6.55mm ± 1.83mm. There was no significant buccal tip in the right and left molars upon intrusion. Conclusion: Miniplates zygomatic anchorage can be used effectively for skeletal open bite correction through posterior dento-alveolar intrusion. Intrusion of the posterior teeth with skeletal anchorage induced counterclockwise rotation of the mandible and, as a consequence, corrected the anteroposterior intermaxillary relationship with a dramatic improvement in the facial soft tissue convexity.

  6. INFERIOR VENA-CAVA OBSTRUCTION AFTER ORTHOTOPIC LIVER-TRANSPLANTATION

    NARCIS (Netherlands)

    BROUWERS, MAM; DEJONG, KP; PEETERS, PMJG; BIJLEVELD, CMA; KLOMPMAKER, IJ; SLOOFF, MJH

    Post-operative inferior vena cava (IVC) obstruction is reported as an uncommon complication after orthotopic liver transplantation (OLT). We report 6 cases after 245 OLT's in the period between March '79 and December '92. Compression or torsion of the IVC or a technical problem were underlying

  7. Transhepatic approach for extracardiac inferior cavopulmonary connection stent fenestration.

    LENUS (Irish Health Repository)

    Kenny, Damien

    2012-02-01

    We report on a 3-year-old male who underwent transcatheter stent fenestration of the inferior portion of an extracardiac total cavopulmonary connection in the setting of hypoplastic left heart syndrome. Transhepatic approach, following an unsuccessful attempt from the femoral vein facilitated delivery of a diabolo-shaped stent.

  8. Does the reduction of inferior turbinate affect lower airway functions?

    Science.gov (United States)

    Unsal, Ozlem; Ozkahraman, Mehtap; Ozkarafakili, Mufide Arzu; Akpinar, Meltem; Korkut, Arzu Yasemin; Kurt Dizdar, Senem; Uslu Coskun, Berna

    2017-11-06

    Although the nose and lungs are separate organs, numerous studies have reported that the entire respiratory system can be considered as a single anatomical and functional unit. The upper and lower airways affect each other either directly or through reflex mechanisms. In this study, we aimed to evaluate the effects of the radiofrequency ablation of persistent inferior turbinate hypertrophy on nasal and pulmonary function. Twenty-seven patients with bilateral persistent inferior turbinate hypertrophy without septal deviation were included in this study. All of the patients were evaluated using anterior rhinoscopy, nasal endoscopy, acoustic rhinometry, a visual analogue scale, and flow-sensitive spirometry on the day before and 4 months after the radiofrequency ablation procedure. The post-ablation measurements revealed that the inferior turbinate ablation caused an increase in the mean cross-sectional area and volume of the nose, as well as in the forced expiratory volume in 1s, forced vital capacity, and peak expiratory flow of the patients. These differences between the pre- and post-ablation results were statistically significant. The post-ablation visual analogue scale scores were lower when compared with the pre-ablation scores, and this difference was also statistically significant. This study demonstrated that the widening of the nasal passage after the reduction of the inferior turbinate size had a favorable effect on the pulmonary function tests. Copyright © 2017 Associação Brasileira de Otorrinolaringologia e Cirurgia Cérvico-Facial. Published by Elsevier Editora Ltda. All rights reserved.

  9. Inferior lumbar triangle hernia: case report | Naidoo | East African ...

    African Journals Online (AJOL)

    A patient with a spontaneously acquired hernia along the inferior lumbar triangle commonly referred to as lumbar triangle of Petit is presented. This was confirmed on CT scan and successfully treated surgically. A review of the literature relevant to this condition is presented. It is likely that with advances in imaging ...

  10. Inferior vena cava leiomyosarcoma: vascular reconstruction is not ...

    African Journals Online (AJOL)

    Leiomyosarcoma (LMS) of inferior vena cava is a rare and aggressive tumor, arising from the smooth muscle cells in the vessel wall. A large complete surgical resection is the essential treatment. The need of vascular reconstruction is not always mandatory. It's above all to understand the place of the reconstruction with ...

  11. Case Report: Supernumerary right renal vein draining inferior to the ...

    African Journals Online (AJOL)

    With recent increase in renal transplantations, renovascular reconstructions and imaging advances, meticulous knowledge of the normal and variant anatomy of the renal vasculature is important to avoid potential pitfalls. We report a case of an accessory renal vein arising from the right kidney, and draining into the inferior ...

  12. Pelvic girdle chondrosarcoma and inferior vena cava thrombosis

    NARCIS (Netherlands)

    Hoekstra, HJ; Pras, B; Mooyaart, ELM; van Ginkel, R; Molenaar, WM

    1997-01-01

    Pelvic girdle chondrosarcomas in children and adolescents are extremely rare, These high grade malignant chondrosarcomas with a locally aggressive growth pattern have a high tendency for thrombus formations in the afferent tumour vessels, associated with an increased risk of inferior vena cava

  13. Pulmonary embolism presenting with ST segment elevation in inferior leads

    OpenAIRE

    Muzaffer Kahyaoğlu; Elnur Alizade; Abdurrahman Naser; Akin İzgi

    2017-01-01

    Acute pulmonary embolism is a form of venous thromboembolism that is widespread and sometimes mortal. The clinical presentation of pulmonary embolism is variable and often nonspecific making the diagnosis challenging. In this report, we present a case of pulmonary embolism characterized by ST segment elevation in inferior leads without reciprocal changes in the electrocardiogram.

  14. Inferior oblique muscle paresis as a sign of myasthenia gravis.

    Science.gov (United States)

    Almog, Yehoshua; Ben-David, Merav; Nemet, Arie Y

    2016-03-01

    Myasthenia gravis may affect any of the six extra-ocular muscles, masquerading as any type of ocular motor pathology. The frequency of involvement of each muscle is not well established in the medical literature. This study was designed to determine whether a specific muscle or combination of muscles tends to be predominantly affected. This retrospective review included 30 patients with a clinical diagnosis of myasthenia gravis who had extra-ocular muscle involvement with diplopia at presentation. The diagnosis was confirmed by at least one of the following tests: Tensilon test, acetylcholine receptor antibodies, thymoma on chest CT scan, or suggestive electromyography. Frequency of involvement of each muscle in this cohort was inferior oblique 19 (63.3%), lateral rectus nine (30%), superior rectus four (13.3%), inferior rectus six (20%), medial rectus four (13.3%), and superior oblique three (10%). The inferior oblique was involved more often than any other muscle (pmuscle is rarely encountered (other than as a part of oculomotor nerve palsy). Hence, when a patient presents with vertical diplopia resulting from an isolated inferior oblique palsy, myasthenic etiology should be highly suspected. Copyright © 2015 Elsevier Ltd. All rights reserved.

  15. Simultaneous Fractures of Acromion, Coracoid Process and Inferior ...

    African Journals Online (AJOL)

    Shoulder dislocations are the most frequent among all articular dislocations. They can lead to major shoulder instability especially when they are associated with scapula fractures. We report an unusual case of antero- inferior shoulder dislocation associated with a triple fracture of the scapula. It is a twenty eight-year old ...

  16. The Role of Inferior Vena Cava Filters in Cancer Patients

    Science.gov (United States)

    Pandhi, Mithil B.; Desai, Kush R.; Ryu, Robert K.; Lewandowski, Robert J.

    2016-01-01

    Cancer induces a hypercoagulable state and renders patients susceptible to venous thromboembolism. While anticoagulation remains the mainstay of treatment, many of these patients require placement of an inferior vena cava (IVC) filter, often due to a contraindication to or failure of anticoagulation. In this article, the available data on IVC filter usage in cancer patients will be reviewed. PMID:27247473

  17. Brucellosis and thrombosis of the inferior vena cava.

    Science.gov (United States)

    Rüegger, Kristina; Tarr, Philip; Karatolios, Konstantinos; Humburg, Jörg; Hügli, Rolf; Jeanneret, Christina

    2017-01-01

    We describe the case of a 23-year old woman with a newly diagnosed thrombosis of the inferior vena cava associated with a Brucella melitensis infection. We suggest possible mechanisms leading to brucellosis-associated venous thrombosis and review 14 previously reported cases.
.

  18. Renal Angiomyolipoma Associated with Inferior Vena Cava Thrombus

    Directory of Open Access Journals (Sweden)

    Xavier Durand

    2009-01-01

    Full Text Available A 57-year-old woman was found to have an inferior vena cava involvement of a known sinusal angiomyolipoma incompletely resected three years beforehand. Intravascular extension into the IVC of angiomyolipoma has rarely been reported. We present a new case and reconsider the literature about this uncommon complication of a benign renal tumor.

  19. Pulmonary embolism presenting with ST segment elevation in inferior leads

    Directory of Open Access Journals (Sweden)

    Muzaffer Kahyaoğlu

    2017-03-01

    Full Text Available Acute pulmonary embolism is a form of venous thromboembolism that is widespread and sometimes mortal. The clinical presentation of pulmonary embolism is variable and often nonspecific making the diagnosis challenging. In this report, we present a case of pulmonary embolism characterized by ST segment elevation in inferior leads without reciprocal changes in the electrocardiogram.

  20. Abscess of the orbit arising 48 h after root canal treatment of a maxillary first molar.

    Science.gov (United States)

    Koch, F; Breil, P; Marroquín, B B; Gawehn, J; Kunkel, M

    2006-08-01

    To discuss a rare, but severe complication arising following routine root canal treatment. An orbital abscess is reported that occurred following routine root canal treatment. A young, healthy female patient, with no history of chronic paranasal infection had undergone root canal treatment of the right maxillary first molar. On hospital admission, she presented with extensive periorbital swelling and discreet diplopia. Computed tomography imaging identified massive purulent sinusitis and subsequent involvement of the orbit via the inferior and medial orbital wall within 48 h after completion of root canal treatment. Immediate surgical drainage of the maxillary sinus and the orbit was established and a high dose of perioperative antibiotics (Amoxicillin/Clavulanic acid, Gentamycin, Metronidazole) were administered. Vision remained undisturbed and mobility of the globe recovered within 10 days. Rapid exacerbation of a periapical inflammation may occur following root canal treatment and may even involve the orbit. A typical speed of disease progression or ophthalmic symptoms should alert the clinician to at least consider unusual early orbital spread of odontogenic infection. When extra-alveolar spread and especially orbital spread is suspected, immediate referral to a maxillofacial or other specialized unit is mandatory.

  1. Uterine rupture following incomplete molar pregnancy: a case report

    Directory of Open Access Journals (Sweden)

    Pourali L

    2013-03-01

    Full Text Available Background: In molar pregnancy, when hydatidiform changes are local and some embryonic components are observed, the term of partial mole is used. The risk of persistent trophoblastic tumor after partial mole is much lower than complete mole. In this persistent cases almost all are non metastatic. The aim of this study is to report a case of uterine rupture following incomplete molar pregnancy.Case presentation: The patient was a 26 year old woman with obstetric history of an abortion and one molar pregnancy and no child. She was referred to emergency unit in Ghaem University Hospital, Mashhad, Iran in May 2011. She had an evacuation curettage following molar pregnancy three months before and without any follow up visit. The patient was referred to emergency unit with hemorrhagic shock. She immediately underwent laparotomy. The uterine fundal rupture was repaired and evacuation curettage performed. In post operative evaluation, she had a nine millimeter metastatic nodule in base of right Lung. As a patient in low risk stage III, she received weekly intramuscular methotrexate (40mg/m2 for six courses. In follow up visit -hCG titer was negative (<10miu/ml at 5th week. Conclusion: In cases of in complete molar pregnancy risk of metastasis is very low. Serial beta-hCG titer is the most accurate method for detection of persistent gestational trophoblastic disease (GTN. In neglected cases like this case preservation of ruptured uterus in GTN is possible.

  2. Histopathologic Evaluation of Follicular Tissues Associated with Impacted Third Molars

    Directory of Open Access Journals (Sweden)

    M. Khorasani

    2008-06-01

    Full Text Available Objective: The aim of the present study was to histopathologically evaluate follicular tissues of third molars with pericoronal radiolucenciesof less than 2 millimeters.Materials and Methods: In this descriptive analytic study, 100 impacted third molars with normal follicular spaces were removed and their pericoronaltissues submitted for histopathologic examination. Different characteristicsof the epithelium and connective tissue were evaluated in all cases. Statisti-cal analysis was performed using chi square and Mann-Whitney tests.Results: In our study sample, 74% of the patients were female and 26% were male, ranging in age from 13 to 54 years (mean, 25.3 years. Lining epithelium was observed in 69% of the specimens of which 31%, 23% and 14% was cuboidal, squamous and columnar, respectively. A significant re-lationship was found between the presence of squamous epithelium and pa-tient age (P<0.05. Nonspecific chronic inflammation was the only patho-logic finding observed in 44% of the specimens. Inflammation was signifi-cantly associated with age and squamous metaplasia (P<0.05.Conclusion: Considering that pathologic lesions were not observed in anyof the studied cases, unerupted third molars should not be removed unless there is a clinical indication to do so, or in case the impacted molar shows evidence of pathological changes. Follow-up is suggested for asympto-matic impacted third molars.

  3. Prevalence of Taurodont Molars in a Selected Iranian Adult Population.

    Science.gov (United States)

    Jamshidi, Davoud; Tofangchiha, Maryam; Jafari Pozve, Nasim; Mohammadpour, Mahdis; Nouri, Bijan; Hosseinzadeh, Kazem

    2017-01-01

    Taurodontism is an anomaly characterized by elongated crowns and consumedly apical location of the bifurcation area. This study aimed to determine the prevalence of taurodontism in molars based on digital panoramic radiographies in eight cities of Iran. This descriptive cross-sectional study was conducted on 2360 digital panoramic radiographs taken for different treatment purposes. Demographic information of patients was recorded and radiographs were evaluated for presence of taurodont molars. The prevalence rates were calculated and the data were analyzed using SPSS software version 18 via paired t-test, chi square test and ANOVA. A total of 2360 panoramic radiographs (from 51.4% male and 48.6% female patients) were evaluated and the prevalence of taurodontism was reported 22.9% (22.6% in males and 23.3% in females) (P>0.05). Its prevalence was 51.67% in the right and 48.33% in the left quadrants (P>0.05), 34.1% in the mandible and 65.9% in the maxilla (P=0.000) and 79.52% in the second and 20.48% in the first molar (P=0.000). The prevalence of hypotaurodontism, mesotaurodontism and hypertaurodontism was 84.13%, 11.07% and 4.8%, respectively. The prevalence of taurodont molars was high in Iran and it was more common in the second molars and in the maxilla. Hypotaurodontism had the highest prevalence.

  4. Central representation of the inferior rectal nerve of the rat.

    Science.gov (United States)

    Peirce, Colin; Alexander, Lauren E; O'herlihy, Colm; O'connell, P Ronan; Jones, James F X

    2010-03-01

    Obstetric injury to the pudendal nerve contributes significantly to fecal incontinence. The inferior rectal nerve, a terminal branch of the motor division of the pudendal nerve, innervates the external anal sphincter. Animal models have been developed to establish the scientific basis of sacral neuromodulation. The aims of this study were to determine the spinal location of inferior rectal nerve motoneurons projecting to the external anal sphincter and whether the inferior rectal nerve carries sensory fibers. Ten female virgin Wistar rats were used; 7 underwent bilateral inferior rectal nerve section and application of the neuronal tracer fluorogold. Five days later dorsal root ganglia L5 to S2 and the lumbosacral spinal cord were harvested and stained for activating transcription factor 3, a molecular marker of nerve injury. Three animals were used to confirm the specificity of activating transcription factor 3 nuclear labeling as a marker of axotomy. Fluorogold-labeled motoneurons were found exclusively at L6 in the dorsomedial sections of Onuf's nuclei (left and right), which contained 30 +/- 9 motoneurons with a median diameter of 28.3 microm (24.4-31.0) (25th-75th centiles). Double-labeled sensory neurons (fluorogold-labeled cytoplasm and activating transcription factor 3-labeled nuclei) were found in dorsal root ganglia L6 to S2 and were smaller in diameter (20.5 microm (17.8-26.7); median (25th-75th centiles)) than motoneurons (P inferior rectal nerve. Activating transcription factor 3 nuclear staining may prove useful for quantifying the degree of nerve injury in animal models of fecal incontinence.

  5. Pulpotomías de molares temporales en pulpas muertas con tintura de propóleos al 10%

    Directory of Open Access Journals (Sweden)

    Walkyria del Carmen González Rodríguez

    Full Text Available Se realizó un ensayo clínico fase II aleatorizado comparado en 50 niños de 4 a 10 años que presentaron molares temporales con muerte pulpar, los cuales acudieron a la Clínica Estomatológica Provincial de Santiago de Cuba entre septiembre del 2005 y septiembre del 2006, con el objetivo de demostrar la eficacia de la tintura de propóleos al 10 % en pulpotomías (necropulpotomías. Se conformaron 2 grupos de tratamientos de 26 pacientes cada uno: en el grupo A se empleó tintura de propóleos al 10 % y en el B el formocresol. Los pacientes se evaluaron a los 7, 15 y 30 días, sin observarse diferencias ni reacciones adversas. El grupo dentario más tratado fue el constituido por los segundos molares temporales inferiores, donde la tintura de propóleos al 10 % en las pulpotomías, resultó ser tan eficaz como el formocresol, por lo que se recomienda incluir en tratamientos endodónticos esta nueva terapéutica.

  6. The characteristics of adjacent anatomy of mandibular third molar germs: a CBCT study to assess the risk of extraction.

    Science.gov (United States)

    Sun, Rui; Cai, Yu; Yuan, Yi; Zhao, Ji-Hong

    2017-10-26

    This study aims to investigate the characteristics of adjacent anatomy of mandibular third molar germs (MTMGs). Three hundred Chinese patients aged 12 to 17 years old who received cone-beam computed tomography (CBCT) were enrolled. The continuity of cortical outline of inferior alveolar canals (IACs) in the region of MTMGs, the integrity of lingual bone cortex and the relationship between hard tissue part of MTMGs and IACs were investigated by observing CBCT data via the NNT viewer software. The age, degree of dental development, gender and location were recorded as variables. The associations between different variables and the observed data were analysed. The possibilities of disrupted cortical outline of IACs or the hard tissue part of MTMGs contacting IACs were significantly lower in 12 or 13 age groups, lower in Nolla stage ≤ 6. Males were significantly less than females in the incidence of disrupted cortical outline of IACs. As to the perforation of lingual bone cortex, no significant differences were observed in gender, ages, location or development stages. According to the CBCT images, anatomical factors contributed the lest to the risk of inferior alveolar nerve and lingual nerve injury in the 12 to 13 age group during removing the MTMG removal.

  7. Comparison of the anesthetic efficacy between bupivacaine and lidocaine in patients with irreversible pulpitis of mandibular molar.

    Science.gov (United States)

    Sampaio, Roberta Moura; Carnaval, Talita Girio; Lanfredi, Camila Bernardeli; Horliana, Anna Carolina Ratto Tempestini; Rocha, Rodney Garcia; Tortamano, Isabel Peixoto

    2012-05-01

    The purpose of this study was to compare the anesthetic efficacy of 0.5% bupivacaine with 1:200,000 epinephrine with that of 2% lidocaine with 1:100,000 epinephrine during pulpectomy in patients with irreversible pulpitis in mandibular posterior teeth. Seventy volunteers, patients with irreversible pulpitis admitted to the Emergency Center of the School of Dentistry at the University of São Paulo, randomly received a conventional inferior alveolar nerve block containing 3.6 mL of either 0.5% bupivacaine with 1:200,000 epinephrine or 2% lidocaine with 1:100,000 epinephrine. During the subsequent pulpectomy, we recorded the patients' subjective assessments of lip anesthesia, the absence/presence of pulpal anesthesia through electric pulp stimulation, and the absence/presence of pain through a verbal analog scale. All patients reported lip anesthesia after the application of either inferior alveolar nerve block. By measuring pulpal anesthesia success with the pulp tester, lidocaine had a higher success rate (42.9%) than bupivacaine (20%). For patients reporting none or mild pain during pulpectomy, the success rate of bupivacaine was 80% and lidocaine was 62.9%. There were only statistically significant differences to the success of pulpal anesthesia. Neither of the solutions resulted in an effective pain control during irreversible pulpitis treatments of mandibular molars. Copyright © 2012 American Association of Endodontists. Published by Elsevier Inc. All rights reserved.

  8. Visibility of the mandibular canal on cross-sectional CBCT images at impacted mandibular third molar sites

    Directory of Open Access Journals (Sweden)

    Mustafa Alkhader

    2016-05-01

    Full Text Available The aim of the present study was to assess visibility of the mandibular canal (MC on cross-sectional cone beam CT (CBCT images at impacted mandibular third molar (IMTM sites. CBCT images for 150 IMTMs were selected for the study. The type of tooth impaction (horizontal, vertical, mesial and distal and location of the MC (inferior in contact and superimposed were evaluated on pseudo-panoramic images. Cross-sectional images were generated and two observers evaluated the location of the MC (buccal, lingual, inter-radicular and inferior and its visibility using 3-point scoring scale: (1–3, good–excellent. Kruskal–Wallis test was used to examine the differences in the visibility of the MC according to its location and the type of tooth impaction. The visibility scores of the MC were good, very good and excellent at 3, 25 and 122 IMTM sites, respectively. There were no statistically significant differences in the visibility scores of the MC according to its location or the type of tooth impaction (P < 0.05. Therefore, despite the different locations of the MC and different types of tooth impaction at IMTM sites, the visibility of the MC was excellent on most of the cross-sectional CBCT images. CBCT is considered a valuable diagnostic tool for achieving these results.

  9. External root resorption of the second molar associated with third molar impaction: comparison of panoramic radiography and cone beam computed tomography.

    Science.gov (United States)

    Oenning, Anne Caroline Costa; Neves, Frederico Sampaio; Alencar, Phillipe Nogueira Barbosa; Prado, Rodrigo Freire; Groppo, Francisco Carlos; Haiter-Neto, Francisco

    2014-08-01

    The aim of the present study was to compare panoramic radiography and cone beam computed tomography (CBCT) for the assessment of external root resorption (ERR) of second molars associated with impacted third molars. In addition, the prevalence of ERR in second molars and the inclinations of the third molars more associated with ERR were investigated in both imaging methods. The sample consisted of 66 individuals with maxillary and mandibular impacted third molars (n = 188) seen on panoramic radiographs and CBCT images. The presence of ERR on the adjacent second molar was investigated, and the position of the third molar was determined using Winter's classification (vertical, horizontal, mesioangular, distoangular, and transverse). Statistical analysis was performed using the χ(2) test, Fisher exact test, and 2-proportion Z test (the significance level was set at 5%). A significantly greater number of cases of ERR (P third molars in mesioangular and horizontal inclinations were more likely to cause resorption of the adjacent teeth. CBCT should be indicated for the diagnosis of ERR in second molars when direct contact between the mandibular second and third molars has been observed on panoramic radiographs, especially in mesioangular or horizontal impactions. Furthermore, considering the propensity of these teeth to cause ERR in second molars, third molar prophylactic extraction could be suggested. Copyright © 2014 American Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved.

  10. La hiperdontia en región de molares Hyperdontia in molar region

    Directory of Open Access Journals (Sweden)

    George Táccio de Miranda Candeiro

    2011-12-01

    Full Text Available La hiperdontia constituye una de las anomalías más estudiadas de la dentición humana. Esa alteración representa la aparición de uno o más dientes en cantidades mayores de lo normal, que puede ocurrir en la mandíbula o maxila y de manera unilateral o bilateral. La etiología de los dientes supernumerarios puede ser explicada principalmente por hiperactividad de la lámina dentaria en la fase inicial. Es importante la detección precoz de dientes supernumerarios porque se ha visto una serie de complicaciones como los diastemas, que pueden causar en la cavidad bucal: retardo de la erupción o dientes impactados, posicionamiento inadecuado de dientes permanentes, desajuste oclusal y el desarrollo de quistes y tumores odontógenos. Así el diagnóstico es normalmente realizado a partir de un examen radiográfico convencional, principalmente la radiografía panorámica. Este trabajo tuvo como objetivo relatar 4 casos clínicos de pacientes con presencia de molares supernumerarios, que fueron atendidos en el Servicio de Radiología de la Escuela de Odontología de la Universidad Federal de Ceará.Hyperdontia is one of the more studied anomalies of human dentition. This alteration represents the appearance of one or more teeth in a number greater of normal, occurring in mandible or in maxilla and could be unilateral or bilateral. The etiology of supernumerary teeth may be explained mainly due to the hyperactivity of dental plate in its initial phase; its early detection is important because of there have been a series of complications that may to cause diastemata, eruption retard or impacted teeth, inappropriate positioning of permanent teeth, occlusal misalignment and the development of odontogenic cysts or tumors. Thus, the diagnosis is normally made from a conventional radiographic examination, mainly the panoramic X-ray. The objective of present paper is the present four clinical cases of patients presenting with supernumerary molars, seen in

  11. Variation in buccal surface morphology of deciduous first molars

    Directory of Open Access Journals (Sweden)

    M Simratvir

    2012-01-01

    Full Text Available Background: The buccal bulge of the deciduous first molars has always been a restorative challenge to the pediatric dentist. Morphologically it may vary from a slight prominence to a well-developed cusp-like structure. Aim: This study was conducted to determine the variable buccal surface morphology of deciduous first molar and its clinical relevance. Materials and Methods: A prospective study was conducted whereby 2016 patients visiting the outpatient clinic of dental hospital over 1 year were evaluated. Any variation in buccal surface morphology of the deciduous first molars was recorded photographically or by replicating in dental stone. Results: Varied morphological patterns on buccal surface were observed for which a new classification scheme has been proposed. Conclusion: The surface morphology of deciduous teeth crowns must be studied carefully as it may be indicative of pulpal extensions and accessory roots, requiring consideration during restorative treatment planning.

  12. Pendulum Therapy of Molar Distalization in Mixed Dentition.

    Science.gov (United States)

    Patil, Raju Umaji; Prakash, Amit; Agarwal, Anshu

    2016-01-01

    Early and timely pedo-orthodontic treatment is aimed at eliminating the disturbances of skeletal or dentoalveolar development, to harmonize the stomatognathic system before the full eruption of all permanent teeth. The advantages of pendulum appliance are its minimal dependence on patient's compliance (child cooperation), ease of fabrication, onetime activation and adjustment of the springs if necessary to correct minor transverse and vertical molar positions. This article reports a successful treatment method of class II malocclusion with pendulum appliance in mixed dentition phase. Distalization of maxillary molar was done, followed by guidance of canine impaction orthodontically and other dental correction using 0.022 MBT appliances. Posttreatment results were stable and remarkable. How to cite this article: Patil RU, Prakash A, Agarwal A. Pendulum Therapy of Molar Distalization in Mixed Dentition. Int J Clin Pediatr Dent 2016;9(1):67-73.

  13. Anxiety and extraction of third molars in Turkish patients.

    Science.gov (United States)

    Garip, Hasan; Abali, Osman; Göker, Kamil; Göktürk, Ulkü; Garip, Yildiz

    2004-12-01

    Preoperative anxiety is widespread and adversely affects a patient's physical and psychological outcome. Extraction of third molars is common, and many patients complain of anxiety and emotional disturbance. We assessed the anxiety of patients in Turkey before extraction of third molars. A total of 120 patients were admitted for removal of one or more third molars under local anaesthesia. The Amsterdam Preoperative Anxiety and Information Scale (APAIS) and Spielberger's State Trait Anxiety Inventory (STAI) were used to evaluate anxiety. The results showed that women were significantly more anxious than men; women who had not had a previous operation were more anxious than other women; there was no difference in the anxiety scores of patients who had previously had a local anaesthetic and those who had not; there were no differences in anxiety as measured by trait scores; patients who wanted a lot of information were more anxious.

  14. Microbiology of the pericoronal pouch in mandibular third molar pericoronitis.

    Science.gov (United States)

    Leung, W K; Theilade, E; Comfort, M B; Lim, P L

    1993-10-01

    The microorganisms associated with mandibular third molar pericoronitis were investigated using direct microscopy and anaerobic culture method. The pericoronal pouch was sampled with paper points in A) 8 patients without mandibular third molar pericoronitis and B) 6 patients with mandibular third molar pericoronitis. Under the microscope, the microflora was found to be a complex mixture comprising gram-positive and gram-negative cocci, rods and filaments (including fusiform and curved rods), motile rods and spirochetes. Significantly higher proportions of motile, gram-negative rods were found in group B than in group A. The predominant cultivable microflora of 9 samples: A (4) and B (5) comprised several species of facultative and obligate anaerobic bacteria, namely Peptostreptococcus, Streptococcus, Actinomyces, Eubacterium, Propionibacterium, Veillonella, Porphyromonas, Prevotella, Bacteriodes, Fusobacterium, Campylobacter, Staphylococcus, Stomatococcus, Lactobacillus, Neisseria, Capnocytophaga, Haemophilus, Selenomonas and Centipeda species. The microflora in pericoronitis appeared similar to that of diseased periodontal pockets.

  15. Solution viscosity – molar mass relationships for poly(butylene succinate and discussion on molar mass analysis

    Directory of Open Access Journals (Sweden)

    Q. Charlier

    2015-05-01

    Full Text Available Poly(butylene succinate (PBS is currently developing due to its biodegradability and the similarity of its mechanical properties to those of polyolefins. Relationships between the number average molar mass, Mn, and solution viscosity such as [η] and ηred were derived for this aliphatic polyester. Mn values were determined by end-group analysis and size exclusion chromatography (SEC. Mark-Houwink-Sakurada (MHS parameters were proposed in two solvents and for the different molar masses and viscosity measurement methods. As an example, the MHS equations were respectively, [η] =6.4•10–4•Mn0.67 in chloroform and [η] = 7.1•10–4•Mn0.69 in 50/50 wt% 1,2-dichlorobenzene/phenol at 25°C for molar masses measured by SEC in hexafluoro isopropanol (HFIP with poly(methyl methacrylate (PMMA standards. Empirical relationships were also suggested to derive Mn directly from reduced viscosity, ηred, which is much easier to determine than intrinsic viscosity. With these data, the number average molar mass of PBS can be conveniently estimated from a single viscosity measurement. In addition, it was shown that PBS contains 1–2 wt% of cyclic oligomers produced during esterification and that molar masses determined by taking this fraction into account or not were significantly different, especially for long chains.

  16. Piezoelectric Versus Conventional Rotary Techniques for Impacted Third Molar Extraction

    Science.gov (United States)

    Jiang, Qian; Qiu, Yating; Yang, Chi; Yang, Jingyun; Chen, Minjie; Zhang, Zhiyuan

    2015-01-01

    Abstract Impacted third molars are frequently encountered in clinical work. Surgical removal of impacted third molars is often required to prevent clinical symptoms. Traditional rotary cutting instruments are potentially injurious, and piezosurgery, as a new osteotomy technique, has been introduced in oral and maxillofacial surgery. No consistent conclusion has been reached regarding whether this new technique is associated with fewer or less severe postoperative sequelae after third molar extraction. The aim of this study was to compare piezosurgery with rotary osteotomy techniques, with regard to surgery time and the severity of postoperative sequelae, including pain, swelling, and trismus. We conducted a systematic literature search in the Cochrane Library, PubMed, Embase, and Google Scholar. The eligibility criteria of this study included the following: the patients were clearly diagnosed as having impacted mandibular third molars; the patients underwent piezosurgery osteotomy, and in the control group rotary osteotomy techniques, for removing impacted third molars; the outcomes of interest include surgery time, trismus, swelling or pain; the studies are randomized controlled trials. We used random-effects models to calculate the difference in the outcomes, and the corresponding 95% confidence interval. We calculated the weighted mean difference if the trials used the same measurement, and a standardized mean difference if otherwise. A total of seven studies met the eligibility criteria and were included in our analysis. Compared with rotary osteotomy, patients undergoing piezosurgery experienced longer surgery time (mean difference 4.13 minutes, 95% confidence interval 2.75–5.52, P trismus in the piezosurgery groups. The number of included randomized controlled trials and the sample size of each trial were relatively small, double blinding was not possible, and cost analysis was unavailable due to a lack of data. Our meta-analysis indicates that although

  17. Partial Molar Volumes of Aqua Ions from First Principles.

    Science.gov (United States)

    Wiktor, Julia; Bruneval, Fabien; Pasquarello, Alfredo

    2017-08-08

    Partial molar volumes of ions in water solution are calculated through pressures obtained from ab initio molecular dynamics simulations. The correct definition of pressure in charged systems subject to periodic boundary conditions requires access to the variation of the electrostatic potential upon a change of volume. We develop a scheme for calculating such a variation in liquid systems by setting up an interface between regions of different density. This also allows us to determine the absolute deformation potentials for the band edges of liquid water. With the properly defined pressures, we obtain partial molar volumes of a series of aqua ions in very good agreement with experimental values.

  18. Treatment of Ectopic Mandibular Second Permanent Molar with Elastic Separators

    Directory of Open Access Journals (Sweden)

    R. Rajesh

    2014-01-01

    Full Text Available Ectopic eruption is a developmental disturbance in which the tooth fails to follow its normal eruption pathway. Ectopic eruption of the second molar is relatively rare. This paper presents the case of thirteen-year-old male with an ectopic mandibular second permanent molar. The condition was corrected with surgical exposure and placement of elastic separators. This case report lays emphasis on the practice of basic methods to obtain acceptable results rather than extensive surgical or orthodontic corrections. It is advised that ectopic teeth should not be neglected especially when it concerns developing caries and malocclusion.

  19. Partial molar quantity of an intensive mother function

    Science.gov (United States)

    Koga, Yoshikata

    2012-09-01

    A new formal definition is given to the partial molar quantity of a component i for an intensive mother function. We perturb the entire system by increasing the amount of the target component by δni keeping others constant and measure the response of the system in terms of an intensive mother function, Φ, δΦ. We then define its partial molar quantity of the ith component, ϕi, as ϕi = [δΦ/{δni/(N + δni)

  20. First molar health status in different craniofacial relationships

    Directory of Open Access Journals (Sweden)

    Linjawi AI

    2016-07-01

    Full Text Available Amal I Linjawi Department of Orthodontics, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia Objective: To investigate the association between the health status of permanent first molars and different craniofacial relationships among adolescents. Study design: This is a retrospective study on patients’ records aged 11–15 years. Sex, skeletal relationship, vertical growth pattern, malocclusion, overjet, and overbite were assessed. The health status of permanent first molars was recorded from the orthopantomograms and intraoral photographs as “sound” and “not sound”. Chi-square, Mann–Whitney U and Kruskal–Wallis tests, and Pearson’s correlation coefficient were used to analyze and correlate the assessed variables. Significance level was set at P<0.05. Results: A total of 210 records were evaluated; 81 were male, 68 had Class I and 91 had Class II skeletal relationships. More than half of the subjects had normal (n=67 to moderate deep bite (n=72; normal (n=91, moderately increased (n=54, to severely increased (n=50 overjet; and Class I (n=106 and Class II division 1 (n=75 malocclusion. Significant differences were found in the health status of the permanent first molars with respect to sex (P=0.034, vertical growth pattern (P=0.01, and overbite (P=0.047. Strong correlations were only found between the health status of the permanent first molars and the following variables: sex (P=0.036 and vertical growth pattern (P=0.004. Significant correlation was further found between the upper left first molar health status and sex (P=0.019 and the lower right first molar health status and the vertical growth pattern (P=0.001. No significant association was found with the anteroposterior craniofacial relationships (P>0.05. Conclusion: Sex difference and vertical growth patterns were found to be potential predictors of the health status of the permanent first molars. No significant association was found with the

  1. Special Contribution: Third Molar Clinical Trials Annotated Bibliography.

    Science.gov (United States)

    White, Raymond P; Fisher, Elda L; Magraw, Caitlin B L; Phero, James; Abdelbaky, Omar; Sherwood, Colin; Nelson, Blake

    2016-01-01

    To provide clinicians with an annotated bibliography of published articles from research funded externally by the Oral and Maxillofacial Surgery Foundation, spanning 1996 to 2015, addressing the topic of third molar management. A brief summary for each article was generated by the respective authors. The complete annotated bibliography generated by the authors is included in the Appendix. The annotated bibliography provides clinicians and other interested individuals with a summary of current literature emanating from clinical studies on third molar topics. Copyright © 2016 American Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved.

  2. Patient's perception on mini-screws used for molar distalization

    OpenAIRE

    Blaya, Micéli Guimarães; Blaya, Diego Segatto; Guimarães, Magáli Beck; Hirakata, Luciana M.; Marquezan, Marcela

    2010-01-01

    PURPOSE: The objective of this study was to evaluate and compare the perceived pain intensity, side effects and discomfort related to the moment of placement, during mechanics and removal of a mini-screw for molar distalization in orthodontic treatment. METHODS: The sample consisted of 30 adult patients with a mean age of 30 years old, with class II malocclusion subdivision right or left. A mini-screw was installed in each patient, in the maxillary arch to provide a molar distalization. The p...

  3. A role for the inferior colliculus in multisensory speech integration.

    Science.gov (United States)

    Champoux, François; Tremblay, Corinne; Mercier, Claude; Lassonde, Maryse; Lepore, Franco; Gagné, Jean-Pierre; Théoret, Hugo

    2006-10-23

    Multisensory integration can occur at relatively low levels within the central nervous system. Recent evidence suggests that multisensory audio-visual integration for speech may have a subcortical component, as acoustic processing in the human brainstem is influenced by lipreading during speech perception. Here, stimuli depicting the McGurk illusion (a demonstration of auditory-visual integration using speech stimuli) were presented to a 12-year-old child (FX) with a circumscribed unilateral lesion of the right inferior colliculus. When McGurk-type stimuli were presented in the contralesional hemifield, illusory perception reflecting bimodal integration was significantly reduced compared with the ipsilesional hemifield and a group of age-matched controls. These data suggest a functional role for the inferior colliculus in the audio-visual integration of speech stimuli.

  4. Right Ventricular Involvement in either Anterior or Inferior Myocardial Infarction

    Directory of Open Access Journals (Sweden)

    Firoozeh Abtahi

    2016-06-01

    Full Text Available Background: Unlike left ventricular function, less attention has been paid to Right Ventricular (RV function after Myocardial Infarction (MI. Objectives: The current study aimed to compare RV function in patients with inferior and anterior MI. Patients and Methods: During the study period, 60 patients consecutively presented to the Emergency Department with chest pain were divided into two groups based on their electrocardiographic findings. Accordingly, 25 patients had inferior MI (IMI group and 35 ones had anterior MI (AMI group. Echocardiography was performed 48 hours after starting the standard therapy. Conventional echocardiographic parameters and Tissue Doppler Imaging (TDI measurements were acquired from the standard views. Student t-test and the chi-square test were respectively used for comparisons of the normally distributed continuous and categorical variables in the two groups. Besides, P < 0.05 was considered to be statistically significant.

  5. Deep Vein Thrombosis Provoked by Inferior Vena Cava Agenesis

    Directory of Open Access Journals (Sweden)

    Raad A. Haddad

    2015-01-01

    Full Text Available Inferior vena cava agenesis (IVCA is a rare congenital anomaly that can be asymptomatic or present with vague, nonspecific symptoms, such as abdominal or lower back pain, or deep vein thrombosis (DVT. Here, we present a 55-year-old male who came with painless swelling and redness of his left lower limb. On examination, swelling and redness were noted extending from the left foot to the upper thigh; it was also warm compared to his right lower limb. Venous Doppler ultrasound was done which showed DVT extending up to the common femoral vein. Subsequently, computed-tomography (CT of the chest and abdomen was done to exclude malignancy or venous flow obstruction; it revealed congenital absence (agenesis of the infrarenal inferior vena cava (IVC.

  6. Optional inferior vena caval filters: where are we now?

    LENUS (Irish Health Repository)

    Keeling, A N

    2008-08-01

    With the advent of newer optional\\/retrievable inferior vena caval filters, there has been a rise in the number of filters inserted globally. This review article examines the currently available approved optional filter models, outlines the clinical indications for filter insertion and examines the expanding indications. Additionally, the available evidence behind the use of optional filters is reviewed, the issue of anticoagulation is discussed and possible future filter developments are considered.

  7. Las alteraciones posturales en miembros inferiores en el surf

    OpenAIRE

    Gaspe, Guillermina

    2015-01-01

    Cuando el equilibrio neuromuscular no es óptimo durante la práctica de un deporte, es posible que, a largo plazo, aparezcan trastornos posturales que, dependiendo del tiempo de entrenamiento, pueden convertirse en un obstáculo para la salud. Es por esto, que mediante esta investigación he pretendido mostrar las alteraciones posturales que el surf puede llegar a provocar en quienes lo practican. Objetivo: Analizar las alteraciones posturales en los miembros inferiores de surfist...

  8. Distal posterior inferior cerebellar artery aneurysm in a child

    Directory of Open Access Journals (Sweden)

    J. Francisco Salomão

    1992-06-01

    Full Text Available The case of a 7-year-old boy presenting with recurrent episodes of subarachnoid hemorrhage due to a distal posterior inferior cerebellar artery aneurysm (PICA, successfully operated, is reported.' The low incidence of intracranial aneurysms in the first decade of life and the rare occurrence of distal PICA aneurysms are unusual features of this case. The theories regarding the origin of intracranial berry aneurysms are discussed.

  9. [Aneurysm of the anterior inferior cerebellar artery: case report].

    Science.gov (United States)

    Adorno, Juan Oscar Alarcón; de Andrade, Guilherme Cabral

    2002-12-01

    The intracranial aneurysms of the posterior circulation have been reported between 5 and 10% of all cerebral aneurysms and the aneurysms of the anterior inferior cerebellar artery (AICA) are considered rare, can cause cerebello pontine angle (CPA) syndrome with or without subarachnoid hemorrhage. Since 1948 few cases were described in the literature. We report on a 33 year-old female patient with subarachnoid hemorrhage due to sacular aneurysm of the left AICA. She was submitted to clipage of the aneurysm without complications.

  10. Suspected spinocellular carcinoma of the inferior eyelid resulted multiple chalazion.

    Science.gov (United States)

    Onesti, Maria Giuseppina; Troccola, Antonietta; Maruccia, Michele; Conversi, Andrea; Scuderi, Gianluca

    2013-01-01

    Chalazion is a subacute granulomatous inflammation of the eyelid caused by retention of tarsal gland secretions and it's the most common inflammatory lesion of the eyelid. In cases of doubtful clinical presentation the diagnosis with a biopsy and a histopathological examination is important because it can orientate an appropriate surgical treatment. We report a case of a 64-years-old diabetic man, suspected for a spinocellular lesion of the inferior eyelid of the left eye, it resulted unexpectedly a chalazion.

  11. Bruxism elicited by inferior alveolar nerve injury: a case report.

    Science.gov (United States)

    Melis, Marcello; Coiana, Carlo; Secci, Simona

    2012-02-01

    The aim of this case report is to describe the history of a patient who received an injury to the right inferior alveolar nerve after placement of a dental implant, with bruxism noted afterward. The symptoms were managed by the use of an occlusal appliance worn at night and occasionally during the day, associated with increased awareness of parafunction during the day to reduce muscle pain and fatigue. Paresthesia of the teeth, gingiva, and lower lip persisted but were reduced during appliance use.

  12. Estudo morfológico da polpa de molares de ratos Wistar frente a uma oclusão traumática experimental Morphological study of the pulp of Wistar rats molars under experimental occlusal interference

    Directory of Open Access Journals (Sweden)

    Luiz Alberto Plácido PENNA

    2000-06-01

    Full Text Available As alterações morfológicas pulpares, decorrentes de um estímulo externo experimental (interferência oclusal, foram estudadas, em nível de microscopia de luz. Utilizaram-se restaurações de amálgama, em sobreoclusão nos primeiros molares superiores direitos de dez ratos Wistar, divididos em 3 grupos e sacrificados por perfusão transcardíaca com formol a 10%, aos 10, 20 e 30 dias. A avaliação foi feita nos molares inferiores direitos (lado experimental e esquerdos (lado controle. As peças ósseas após descalcificação em solução de EDTA associada às microondas, seguiram técnica histológica de rotina e coloração por hematoxilina-eosina e tricrômico de Mallory. Verificou-se no lado controle uma reação intensa caracterizada por um posicionamento atípico dos odontoblastos, seguida pelo aparecimento de cálculos pulpares e posteriormente por uma aparente e uniforme acomodação tecidual em toda a polpa, com moderada incidência de fibras colágenas. No lado experimental, as alterações foram similares parecendo, porém, aumentar com o tempo, principalmente aos 30 dias, onde a imagem histológica era semelhante à do lado controle aos 10 dias. Os resultados obtidos permitiram concluir que a interferência oclusal provocou alterações no tecido conjuntivo pulpar tanto no lado experimental como no controle e que as mesmas foram proporcionais à direção dos movimentos mandibulares.Pulpal morphological alterations in mandibular molars of rats, resulting from an experimental external stimulus (occlusal interference, were studied using light microscopy. We placed amalgam restorations in supraocclusion in the right superior first molars of 10 Wistar rats divided into three groups, which were sacrificed by transcardiac perfusion with 10% formalin, after 10, 20 and 30 days. The evaluation of the right (experimental side and left (control side inferior molars was made after decalcification of the bony specimens with EDTA solution

  13. Anaesthetic efficacy of lidocaine/clonidine for inferior alveolar nerve block in patients with irreversible pulpitis.

    Science.gov (United States)

    Shadmehr, E; Aminozarbian, M G; Akhavan, A; Mahdavian, P; Davoudi, A

    2017-06-01

    This prospective, randomized, double-blind study aimed to compare the efficacy of lidocaine with epinephrine versus lidocaine with clonidine for inferior alveolar nerve block (IANB) and hemodynamic stability (heart rate, systolic blood pressure, diastolic blood pressure and mean arterial pressure) in patients with irreversible pulpitis. One hundred patients with irreversible pulpitis in mandibular molar teeth randomly received 1.8 mL of 2% lidocaine with clonidine (15 μg mL -1 ) or 1.8 mL of 2% lidocaine with epinephrine (12.5 μg mL -1 ), using a conventional IANB technique. Endodontic access cavities were prepared 15 min after solution deposition, and all patients were required to have profound lip numbness. Success was defined as no or mild pain (visual analog scale recording) upon endodontic access cavity preparation or initial canal instrumentation. The hemodynamic parameters were measured before, during and 5, 10 and 30 min after administration. Finally, the collected data were subjected to independent t-test, chi-square and Fisher's exact test using spss software ver.20 at a significant level of 0.05. The success rates for IANB using lidocaine with epinephrine and lidocaine with clonidine solutions were 29% and 59%, respectively. The clonidine group exhibited a significantly higher success rate (P irreversible pulpitis, addition of clonidine to lidocaine improved the success rate of IANB compared to a standard lidocaine/epinephrine solution. © 2016 International Endodontic Journal. Published by John Wiley & Sons Ltd.

  14. Effectiveness comparison of inferior alveolar nerve block anesthesia using direct and indirect technique

    Directory of Open Access Journals (Sweden)

    Rehatta Yongki

    2016-12-01

    Full Text Available Local anesthesia is important to do prior to tooth extraction procedure to control the patient's pain. Local anesthetic technique in dentistry consists of topical, infiltration, and anesthetic blocks. For molar tooth extraction, mandibular block technique is used either direct or indirect. This study aimed to see if there are differences in effectiveness of inferior alveolar nerve block anesthesia techniques between direct and indirect. This clinical experimental design study used 20 patients as samples during February-April. 10 patients were taken as a group that carried out direct technique while 10 others group conducted indirect techniques. The sample selection using purposive sampling method. Pain level were measured using objective assessments (pain experienced by the patient after a given stimulus and subjective evaluation (thick taste perceived by the patient. The average time of onset in direct and indirect techniques in each sample was 16.88 ± 5.30 and 102.00 ± 19.56 seconds (subjectively and 22.50 ± 8.02 and 159.00 ± 25.10 (objectively. These results indicated direct techniques onset faster than indirect techniques. The average duration of direct and indirect techniques respectively was 121.63 ± 8.80 and 87.80 ± 9.96 minutes (subjectively and 91.88 ± 8.37 and 60.20 ± 10.40 minutes (objectively. These results indicated the duration of direct technique is longer than indirect technique. There was no significant difference when viewed from anesthesia depth and aspiration level. This study indicated that direct technique had better effect than indirect technique in terms of onset and duration, while in terms of anesthesia depth and aspiration level was relatively equal. Insignificant differences were obtained when assessing anesthetic technique successful rate based on gender, age and extracted tooth.

  15. Tinnitus-related changes in the inferior colliculus

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    Joel I Berger

    2015-03-01

    Full Text Available Tinnitus is highly complex, diverse, and difficult to treat, in part due to the fact that the underlying causes and mechanisms remain elusive. Tinnitus is generated within the auditory brain, however, consolidating our understanding of tinnitus pathophysiology is difficult due to the diversity of reported effects and the variety of implicated brain nuclei. Here, we focus on the inferior colliculus, a midbrain structure that integrates the vast majority of ascending auditory information and projects via the thalamus to the auditory cortex. The IC is also a point of convergence for corticofugal input and input originating outside the auditory pathway. We review the evidence, from both studies with human subjects and from animal models, for the contribution the inferior colliculus makes to tinnitus. Changes in the IC, caused by either noise exposure or drug administration, involve fundamental, heterogeneous alterations in the balance of excitation and inhibition. However, differences between hearing loss-induced pathology and tinnitus-related pathology are not well understood. Moreover, variability in tinnitus induction methodology has a significant impact on subsequent neural and behavioural changes, which could explain some of the seemingly contradictory data. Nonetheless, the inferior colliculus is likely involved in the generation and persistence of tinnitus perception.

  16. Prosthetic replacement of the infrahepatic inferior vena cava for leiomyosarcoma.

    Science.gov (United States)

    Illuminati, Giulio; Calio', Francesco G; D'Urso, Antonio; Giacobbi, Daniela; Papaspyropoulos, Vassilios; Ceccanei, Gianluca

    2006-09-01

    Resection of the infrahepatic inferior vena cava associated with prosthetic graft replacement for caval leiomyosarcoma is an acceptable procedure to obtain prolonged and good-quality survival. A consecutive sample clinical study with a mean follow-up of 40 months. The surgical department of an academic tertiary center and an affiliated secondary care center. Eleven patients, with a mean age of 51 years, who have primary leiomyosarcoma of the infrahepatic inferior vena cava. All of the patients underwent radical resection of the tumor en bloc with the affected segment of the vena cava. Reconstruction consisted of 10 cavocaval polytetrafluoroethylene grafts and 1 cavobiliac graft. An associated right nephrectomy was performed in 2 cases. The left renal vein was reimplanted in the graft in 3 cases. Cumulative disease-specific survival, disease-free survival, and graft patency rates expressed by standard life-table analysis. No patients died in the postoperative period. The cumulative (SE) disease-specific survival rate was 53% (21%) at 5 years. The cumulative (SE) disease-free survival rate was 44% (19%) at 5 years. The cumulative (SE) graft patency rate was 67% (22%) at 5 years. Radical resection followed by prosthetic graft reconstruction is a valuable method for treating primary leiomyosarcoma of the infrahepatic inferior vena cava.

  17. Inferior hip dislocation after falling from height: A case report.

    Science.gov (United States)

    Tekin, Ali Çağrı; Çabuk, Haluk; Büyükkurt, Cem Dinçay; Dedeoğlu, Süleyman Semih; İmren, Yunus; Gürbüz, Hakan

    2016-01-01

    Traumatic inferior hip dislocation is the least common of all hip dislocations. Adult inferior hip dislocations usually occur after high-energy trauma, very few cases are reported without fracture. A 26-year-old female was brought to the emergency department with severe pain in the left hip, impaired posture and restricted movement following a fall from 15m height. The hip joint was fixed in 90° flexion, 15° abduction, and 20° external rotation. No neurovascular impairment was determined. On radiologic examination, a left ischial type inferior hip dislocation was detected. Hemorrhagic shock which developed due to acute blood loss to thoracic and abdominal cavity and patient died at third hour after she was brought to the hospital. Traumatic hip dislocations have high morbidity and mortality rates due to multiple organ damage, primarily of the extremities, chest and abdomen. In the treatment of traumatic hip dislocation, closed reduction is recommended through muscle relaxation under general anesthesia or sedation. This procedure should be applied before any intervention for concomitant extremity injuries. A detailed evaluation on emergency presentation, a multi-disciplinary approach and early diagnosis with the rapid application of imaging methods could be life-saving for such patients. Copyright © 2016 The Authors. Published by Elsevier Ltd.. All rights reserved.

  18. Molar Intubation for Intra Oral Swellings:Our Experience

    Directory of Open Access Journals (Sweden)

    Meenoti Potdar

    2008-01-01

    Full Text Available Molar intubation is a technique of laryngoscopy that can be used for anticipated difficult intubation in cases where standard laryngoscopy technique is difficult due to presence of any intraoral mass that anatomically hampers laryngoscopy or that bleeds on touch. This technique is very easy, reliable and rewarding but should be practiced on normal patients for easy application in actual difficult cases.

  19. Variant Root Morphology of Third Mandibular Molar in Normal and ...

    African Journals Online (AJOL)

    isaac kipyator

    2017-11-12

    Nov 12, 2017 ... Anatomy Journal of Africa. 2017. Vol 6 (3): 1052 - 1061. 1052. ORIGINAL COMMUNICATION. Variant Root Morphology of Third Mandibular Molar in Normal and. Impacted Teeth. Isaac Kipyator Bokindo1, Fawzia Butt 2,3, Francis Macigo4. 1School of Dental Sciences, University of Nairobi, Nairobi, Kenya.

  20. Densities and Excess Molar Volume for the Ternary Systems (1 ...

    African Journals Online (AJOL)

    methylimidazolium methyl sulphate ([BMIM]+[MeSO4]-) were determined. The ternary systems studied were ([BMIM]+[MeSO4]-+ nitromethane + methanol or ethanol or 1-propanol) at the temperatures (303.15 and 313.15) K. The ternary excess molar ...

  1. Ectopic (tubal) Molar Gestation: Report Of Two Cases | Abdul ...

    African Journals Online (AJOL)

    Ectopicmolar gestation is a rare event. Itsmalignant potential is similar to that of an intrauterine molar pregnancy. To document two cases of tubalmolar gestations seen over a 10-year period. Case series. Two young Nigerian undergraduates presented with features of ruptured tubal pregnancy. They had total salpingectomy ...

  2. Management of inflammatory complications in third molar surgery: A ...

    African Journals Online (AJOL)

    Results: Methods ranges from surgical closure techniques, use of drains, physical therapy and pharmacological means. Studies reviewed have shown that no single modality effectively minimizes postoperative pain, swelling and trismus without undesirable effects. Conclusion: Inflammatory complications after third molar ...

  3. SIGNS Molar tooth sign − looking beyond the obvious

    African Journals Online (AJOL)

    The molar tooth sign refers to the characteristic appearance on axial CT or MRI of enlarged and horizontally directed columnar structures on each side of the midline flanking a deep interpeduncular fossa.[1] This appearance is a result of absence or hypoplasia of the cerebellar vermis, lack of normal dorsal decussation and ...

  4. Measurement of the specific and the apparent molar volumes of ...

    African Journals Online (AJOL)

    The objective was to understand the extent to which the acids can disturb the structure of the solvent as well as affect the micellar characteristics. The specific volumes were obtained by fitting the measured viscosity data to the Einstein equation while the apparent molar volumes were obtained using the pycnometric method.

  5. Complete molar pregnancy in a 53-year-old woman

    African Journals Online (AJOL)

    Enrique

    43. SA JOURNAL OF RADIOLOGY • May 2004. CASE REPORT. Introduction. This case emphasises the role of sonography in the diagnosis of a com- plete molar pregnancy. Case report. A 53-year-old female, para 13 gravid 13, presented to the casualty department of Pretoria Academic. Hospital with a complaint of PV (per.

  6. Canal pattern in mesiobuccal root of maxillary molars of Nigerians ...

    African Journals Online (AJOL)

    planed maxillary first and second molars respectively were sectioned transversely at three different points corresponding to the cemento-enamel junction, the peak of the external outline of the furcation and the margin of the middle and apical thirds ...

  7. Impacted Mandibular Third Molars: Review of Literature and a ...

    African Journals Online (AJOL)

    Impacted tooth is a tooth which is completely or partially unerupted and is positioned against another tooth, bone or soft tissue so that its further eruption is unlikely, described according to its anatomic position.[1] The third molar impaction is occurring in about 73% of the young adults in Europe,[2] these teeth generally erupt ...

  8. Dental caries pattern of first and second permanent molars and ...

    African Journals Online (AJOL)

    Objective: The study was carried out to assess the dental caries pattern of first and second permanent molars and treatment needs among adolescent Nigerians in Lagos. Method: Examinations for dental caries and treatment needs in accordance with the criteria of the World Health Organization Basic Methods for oral ...

  9. internal root morphology in maxillary first permanent molars in a ...

    African Journals Online (AJOL)

    2011-03-03

    Mar 3, 2011 ... N. J. Muriithi, BDS (NBI), MDS, Prosthodontist, Ministry of Medical Services, Divisional of Oral Health, Rift Valley. Provincial Hospital, P. O. Box .... molars and satisfied the inclusion criteria were selected. The study was approved by the .... according to Vertucci classification. Type I. Type II. Type VII. Type VIII.

  10. Case report - Ectopic molar pregnancy: A case report | Bousfiha ...

    African Journals Online (AJOL)

    The patient was followed with weekly quantitative ;-hCG titers until three successive ;-hCG levels were negative. It is pertinent that clinicians take routine histological examination of tubal specimens in ectopic pregnancy very seriously in order to diagnose cases of ectopic molar gestations early and mount appropriate post ...

  11. Excess molar volumes and isentropic compressibilities of binary ...

    Indian Academy of Sciences (India)

    However, the large negative values of excess molar volume becomes dominant in toluene. · n-hexane mixture. Deviation in isentropic compressibility is negative over the whole range of composition in the case of all the six binary mixtures. Existence of specific intermolecular interac- tions in the mixtures has been analyzed ...

  12. ON THE MOLAR POLARIZABILITIES OF BINARY MIXTURES FROM ...

    African Journals Online (AJOL)

    TBA), lso-Propyl alcohol (IPA) and Toluene (TOL) were prepared at 298k and 1 atm. Subsequently, the densities, mole fractions and refractive indices of the mixtures and their pure components were obtained at 298k. The average molar ...

  13. Excess Molar Volume Of Binarymixtures From Iso-Propyl Alcohol ...

    African Journals Online (AJOL)

    In this work, binary mixtures from Tertiary-Butyl alcohol (TBA), Toluene (TOL) and Iso-Propyl alcohol (IPA) were prepared at 298K. The mixtures physical properties which includes densities of mixtures (ρ) and pure components (ρI) and mole fractions of components (x) were equally measured at 298K. Excess molar volumes ...

  14. internal root morphology in mandibular first permanent molars in a ...

    African Journals Online (AJOL)

    2013-11-06

    Nov 6, 2013 ... and for disinfection. Subsequently, the teeth were ... (70%, 95%, 100%) of ethyl alcohol (Scharlab S.L.. Sentmenat, Spain) for three ... Number of canals in mandibular first molars. 100. 90. 80. 70. 60. 50. 40. 30. 20. 10. 0. 3.2%.

  15. Variant Root Morphology of Third Mandibular Molar in Normal and ...

    African Journals Online (AJOL)

    isaac kipyator

    2017-11-12

    Nov 12, 2017 ... The mandibular third molar poses a challenge to dental surgeons due to it's unpredictable morphology which leads to increased difficulty during its .... Regeneration within the canal will thus be unimpeded unless obstructed by ... MATERIALS AND METHODS. A descriptive study was carried out at the.

  16. Taurodontism of deciduous and permanent molars: report of two cases.

    Science.gov (United States)

    Rao, Ashwin; Arathi, R

    2006-03-01

    Taurodontism is an aberration of teeth that lacks the constriction at the level of the CEJ characterized by elongated pulp chambers and apical displacement of bifurcation or trifurcation of the roots, giving it a rectangular shape. Its occurrence in permanent teeth is common and is quite rare in deciduous dentition. Presented in this article are two cases with taurodontism involving deciduous and permanent molars.

  17. A Rare Condition of Bimaxillary Primary Molar Taurodontism

    OpenAIRE

    Avula Jogendra Sai Sankar; Enuganti Sreedevi; Akkala Satya Gopal; Manne Naga Lakshmi

    2017-01-01

    Taurodontism is a relatively rare variance with a very low incidence in primary dentition and only a few cases have been reported in the literature. It stands a challenge when these teeth require pulp therapy. This case report illustrates the oral rehabilitation of multiple primary molars with taurodontism involving both the maxillary and mandibular arches, which is a rare occurrence.

  18. A Rare Condition of Bimaxillary Primary Molar Taurodontism.

    Science.gov (United States)

    Jogendra Sai Sankar, Avula; Sreedevi, Enuganti; Satya Gopal, Akkala; Naga Lakshmi, Manne

    2017-06-01

    Taurodontism is a relatively rare variance with a very low incidence in primary dentition and only a few cases have been reported in the literature. It stands a challenge when these teeth require pulp therapy. This case report illustrates the oral rehabilitation of multiple primary molars with taurodontism involving both the maxillary and mandibular arches, which is a rare occurrence.

  19. Temporal abscess after third molar extraction in the mandible.

    Science.gov (United States)

    de Oliveira Neto, Patrício José; de Souza Maliska, Maximiana Cristina; Sawazaki, Renato; Asprino, Luciana; de Moraes, Márcio; Moreira, Roger William Fernandes

    2012-03-01

    Dental infections resulting before or after third molar removal are complications in which the maxillofacial surgeon may have to initiate an earlier management. The severe dental infections resulting before or after this procedure is one of the few life-threatening complications in which the maxillofacial surgeon may have to initiate an earlier management. Infections involving the temporal space are rare and infrequently reported. Infections in this space have also been observed secondary to maxillary sinusitis, maxillary sinus fracture, temporomandibular arthroscopy, and drug injection, although more commonly associated to third molar infections. A 22-year-old man had undergone extraction of tooth 38 secondary to pericoronaritis by a general dentist. Physical examination of his face demonstrated severe trismus, pain, and swelling in temporal region. A CT scan showed an inflammatory area into the temporal space. He was started on IV cephalosporin, but the clinical course of the patient was not satisfactory. Incision and drainage were performed from an extraoral and intraoral approach. After discharged, the antibiotic was switched to clindamycin IO 600 mg. The retromaxillary and temporal infections are quite common after maxillary molar extractions but not after mandibular third molar, the spread mechanism of ascension must be involved with the virulence of microorganisms, but more studies are necessary to clarify this occurrence.

  20. Molar extinction coefficients of some carbohydrates in aqueous ...

    Indian Academy of Sciences (India)

    pp. 521–528. Molar extinction coefficients of some carbohydrates in aqueous solutions. K SINGH£, G K SANDHU, B S LARKa and S P SUDb. Department of Physics, Guru Nanak Dev University, Amritsar 143 005, India. aDepartment of Chemistry, Guru Nanak Dev University, Amritsar 143 005, India. bDepartment of Physics ...