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Sample records for bite plate-induced occlusal

  1. Occlusal adjustment using the bite plate-induced occlusal position as a reference position for temporomandibular disorders: a pilot study

    Science.gov (United States)

    2010-01-01

    Background Many researchers have not accepted the use of occlusal treatments for temporomandibular disorders (TMDs). However, a recent report described a discrepancy between the habitual occlusal position (HOP) and the bite plate-induced occlusal position (BPOP) and discussed the relation of this discrepancy to TMD. Therefore, the treatment outcome of evidence-based occlusal adjustments using the bite plate-induced occlusal position (BPOP) as a muscular reference position should be evaluated in patients with TMD. Methods The BPOP was defined as the position at which a patient voluntarily closed his or her mouth while sitting in an upright posture after wearing an anterior flat bite plate for 5 minutes and then removing the plate. Twenty-one patients with TMDs underwent occlusal adjustment using the BPOP. The occlusal adjustments were continued until bilateral occlusal contacts were obtained in the BPOP. The treatment outcomes were evaluated using the subjective dysfunction index (SDI) and the Helkimo Clinical Dysfunction Index (CDI) before and after the occlusal adjustments; the changes in these two indices between the first examination and a one-year follow-up examination were then analyzed. In addition, the difference between the HOP and the BPOP was three-dimensionally measured before and after the treatment. Results The percentage of symptom-free patients after treatment was 86% according to the SDI and 76% according to the CDI. The changes in the two indices after treatment were significant (p 0.1). Conclusion Although the results of the present study should be confirmed in other studies, a randomized clinical trial examining occlusal adjustments using the BPOP as a reference position appears to be warranted. PMID:20346167

  2. Occlusal adjustment using the bite plate-induced occlusal position as a reference position for temporomandibular disorders: a pilot study

    Directory of Open Access Journals (Sweden)

    Chiwata Ichiro

    2010-03-01

    Full Text Available Abstract Background Many researchers have not accepted the use of occlusal treatments for temporomandibular disorders (TMDs. However, a recent report described a discrepancy between the habitual occlusal position (HOP and the bite plate-induced occlusal position (BPOP and discussed the relation of this discrepancy to TMD. Therefore, the treatment outcome of evidence-based occlusal adjustments using the bite plate-induced occlusal position (BPOP as a muscular reference position should be evaluated in patients with TMD. Methods The BPOP was defined as the position at which a patient voluntarily closed his or her mouth while sitting in an upright posture after wearing an anterior flat bite plate for 5 minutes and then removing the plate. Twenty-one patients with TMDs underwent occlusal adjustment using the BPOP. The occlusal adjustments were continued until bilateral occlusal contacts were obtained in the BPOP. The treatment outcomes were evaluated using the subjective dysfunction index (SDI and the Helkimo Clinical Dysfunction Index (CDI before and after the occlusal adjustments; the changes in these two indices between the first examination and a one-year follow-up examination were then analyzed. In addition, the difference between the HOP and the BPOP was three-dimensionally measured before and after the treatment. Results The percentage of symptom-free patients after treatment was 86% according to the SDI and 76% according to the CDI. The changes in the two indices after treatment were significant (p 0.1. Conclusion Although the results of the present study should be confirmed in other studies, a randomized clinical trial examining occlusal adjustments using the BPOP as a reference position appears to be warranted.

  3. Effect of gender, facial dimensions, body mass index and type of functional occlusion on bite force

    Directory of Open Access Journals (Sweden)

    Duygu Koç

    2011-06-01

    Full Text Available OBJECTIVE: Some factors such as gender, age, craniofacial morphology, body structure, occlusal contact patterns may affect the maximum bite force. Thus, the purposes of this study were to determine the mean maximum bite force in individuals with normal occlusion, and to examine the effect of gender, facial dimensions, body mass index (BMI, type of functional occlusion (canine guidance and group function occlusion and balancing side interferences on it. MATERIAL AND METHODS: Thirty-four individuals aged 19-20 years-old were selected for this study. Maximum bite force was measured with strain-gauge transducers at first molar region. Facial dimensions were defined by standardized frontal photographs as follows: anterior total facial height (ATFH, bizygomathic facial width (BFW and intergonial width (IGW. BMI was calculated using the equation weight/height². The type of functional occlusion and the balancing side interferences of the subjects were identified by clinical examination. RESULTS: Bite force was found to be significantly higher in men than women (p0.05. BMI and bite force correlation was not statistically significant (p>0.05. The average bite force did not differ in subjects with canine guidance or group function occlusion and in the presence of balancing side interferences (p>0.05. CONCLUSIONS: Data suggest that bite force is affected by gender. However, BMI, type of functional occlusion and the presence of balancing side interferences did not exert a meaningful influence on bite force. In addition, transverse facial dimensions showed correlation with bite force in only men.

  4. Evaluation of the occlusal contact of crowns fabricated with the bite impression method.

    Science.gov (United States)

    Makino, Sachi; Okada, Daizo; Shin, Chiharu; Ogura, Reiko; Ikeda, Masaomi; Miura, Hiroyuki

    2013-09-30

    In prosthodontic treatment, reconstruction of a proper occlusal contact relationship is very important as well as reconstruction of a proper interproximal relationship and marginal fitness. Unfortunately, occlusal relationships are sometimes lost in the process of occlusal adjustment of crowns. The purpose of this study was to compare the occlusal contacts of single crown fabricated by two different types of impression techniques. Nine subjects, whose molars required treatment with crown restoration, were enrolled in this study. Full cast crowns were fabricated using two types of impression techniques: the conventional impression method (CIM) and the bite impression method (BIM). The occlusal contacts of crowns were precisely evaluated at the following stages: after occlusal adjustment on the articulator (Step 0), before occlusal adjustment in the mouth (Step 1), after occlusal adjustment at the intercuspal position (Step 2), and after occlusal adjustment during lateral and protrusive excursions (Step 3). The number of occlusal contacts of the crowns on the functional cusps fabricated with BIM was significantly greater than that with CIM after occlusal adjustment. For this reason, the crowns fabricated with BIM might have a more functionally desirable occlusal surface compared to the crowns fabricated with CIM.

  5. Chewing side, bite force symmetry, and occlusal contact area of subjects with different facial vertical patterns

    Directory of Open Access Journals (Sweden)

    Simone Guimarães Farias Gomes

    2011-10-01

    Full Text Available Craniofacial dimensions influence oral functions; however, it is not known whether they are associated with function asymmetry. The objective of this study was to evaluate chewing side preference and lateral asymmetry of occlusal contact area and bite force of individuals with different craniofacial patterns. Seventy-eight dentate subjects were divided into 3 groups according to the VERT index as follows: (1 mesofacial, (2 brachyfacial and (3 dolichofacial. Chewing side preference was evaluated using jaw tracking equipment, occlusal contact area was measured by silicon registration of posterior teeth, and bite force was measured unilaterally on molar regions using 2.25 mm-thick sensors. Statistical analysis was performed using ANOVA on Ranks, Student's t-test, and Mann-Whitney tests at a 5% significance level. Mesofacial, brachyfacial, and dolichofacial subjects presented more occlusal contact area on the left side. Only dolichofacial subjects showed lateral asymmetry for bite force, presenting higher force on the left side. No statistically significant differences were found for chewing side preference among all groups. Within the limitations of this study, it can be concluded that craniofacial dimensions play a role in asymmetry of bite force. ClinicalTrials.gov ID: NCT01286363.

  6. Chewing side, bite force symmetry, and occlusal contact area of subjects with different facial vertical patterns

    OpenAIRE

    Simone Guimarães Farias Gomes; William Custodio; Fernanda Faot; Altair Antoninha Del Bel Cury; Renata Cunha Matheus Rodrigues Garcia

    2011-01-01

    Craniofacial dimensions influence oral functions; however, it is not known whether they are associated with function asymmetry. The objective of this study was to evaluate chewing side preference and lateral asymmetry of occlusal contact area and bite force of individuals with different craniofacial patterns. Seventy-eight dentate subjects were divided into 3 groups according to the VERT index as follows: (1) mesofacial, (2) brachyfacial and (3) dolichofacial. Chewing side preference was eval...

  7. Comparative study to evaluate the accuracy of polyether occlusal bite registration material and occlusal registration wax as a guide for occlusal reduction during tooth preparation

    Directory of Open Access Journals (Sweden)

    Niranjan Joshi

    2013-01-01

    Objective: The objective of this study was to compare and evaluate the reliability of the most commonly used occlusal registration wax that with polyether bite registration material as a guide for occlusal reduction required during tooth preparations. Materials and Methods: For the purpose of this study, 25 abutment teeth requiring tooth preparation for fixed prosthesis were selected and tooth preparations carried out. Modeling wax strips of specific dimensions were placed onto the cast of prepared tooth, which was mounted on maximum intercuspation on the articulator and the articulator was closed. The thickness of the wax registration was measured at three zones namely two functional cusps and central fossa. Similar measurements were made using the polyether bite registration material and prosthesis at the same zones. The data was tabulated and was subjected to statistical analysis using anova test and Tukey honestly significant difference test. Results: The differences in thickness between wax record and prosthesis by 0.1346 mm, whereas the difference between polyether and prosthesis was 0.02 mm with a P value of 0.042, which is statistically significant. This means that the wax record was 8.25% larger than the prosthesis while polyether was just 1.27% larger than the prosthesis. Conclusion: The clinical significance of the above analysis is that Ramitec polyether bite registration material is most suitable material when compared with commonly used modeling wax during the tooth preparation.

  8. Intraoral conversion of occlusal force to electricity and magnetism by biting of piezoelectric elements.

    Science.gov (United States)

    Kameda, Takashi; Ohkuma, Kazuo; Sano, Natsuki; Ogura, Hideo; Terada, Kazuto

    2012-01-01

    Very weak electrical, magnetic and ultrasound signal stimulations are known to promote the formation, metabolism, restoration and stability of bone and surrounding tissues after treatment and operations. We have therefore investigated the possibility of intraoral generation of electricity and magnetism by occlusal force in an in vitro study. Biting bimorph piezoelectric elements with lead zirconate titanate (PZT) using dental models generated appropriate magnetism for bone formation, i. e. 0.5-0.6 gauss, and lower electric currents and higher voltages, i. e. 2.0-6.0 μA at 10-22 V (appropriate levels are 30 μA and 1.25 V), as observed by a universal testing machine. The electric currents and voltages could be changed using amplifier circuits. These results show that intraoral generation of electricity and magnetism is possible and could provide post-operative stabilization and activation of treated areas of bone and the surrounding tissues directly and/or indirectly by electrical, magnetic and ultrasound stimulation, which could accelerate healing.

  9. Assessment of type of bite and vertical dimension of occlusion in children and adolescents with temporomandibular disorder.

    Science.gov (United States)

    Marangoni, Analúcia Ferreira; de Godoy, Camila Haddad Leal; Biasotto-Gonzalez, Daniela Aparecida; Alfaya, Thays Almeida; Fernandes, Kristianne Porta Santos; Mesquita-Ferrari, Raquel Agnelli; Bussadori, Sandra Kalil

    2014-07-01

    The aim of the present study was determine the type of bite and abnormalities in the vertical dimension of occlusion (VDO) among children and adolescents with temporomandibular disorder (TMD). The Helkimo index was employed for the diagnostic investigation of TMD. A clinical examination was performed for the determination of occlusion. The VDO was measured using a digital caliper. Fisher's exact text was used to determine associations between type of bite, gender and TMD. The Student's t-test was used to compare age and VDO by gender. The significance level was set to 5% or corresponding p-value. Children and adolescents with anterior open bite were 1.2-fold more likely to develop TMD in comparison to those without any type of malocclusion. The same was found for those with posterior crossbite and mixed malocclusion. A statistically significant association was found between the VDO and age in both genders. TMD affected 68.85% of the sample. No correlation was found between malocclusion, VDO and TMD in the sample. The present findings suggest that individuals with malocclusion are more prone to TMD. Therefore, it is important to evaluate all variables capable of influencing the harmony of the stomatognathic system for an effective diagnosis of TMD and malocclusion.

  10. An investigation of the simultaneously recorded occlusal contact and surface electromyographic activity of jaw-closing muscles for patients with temporomandibular disorders and a scissors-bite relationship.

    Science.gov (United States)

    Qi, Kun; Guo, Shao-Xiong; Xu, YiFei; Deng, Qi; Liu, Lu; Li, Baoyong; Wang, Mei-Qing

    2016-06-01

    Surface electromyographic (SEMG) activity of the masseter and anterior temporalis (TA) muscles has been reported to be associated with occlusion and orofacial pain. However, our recent report did not reveal an association between the side of orofacial pain and the side showing higher or lower level of SEMG activity of masseter or TA. The present purpose was to re-test this association in patients who had unilateral scissors-bite relationship. Thirty-two unilateral scissors-bite femalepatients complaining of unilateral orofacial pain (n=15) or TMJ sounds (n=17) were enrolled to simultaneously record contacts, force distribution of occlusion, and SEMG activity of masseter and TA during centric maximal voluntary clenching (MVC). The results indicated that neither orofacial pain nor the TMJ sounds had an association with the masseter's SEMG values, while scissors-bite had (PTMD symptom(s) and scissors-bite, the jawclosing muscles' SEMG activity during centric MVC was associated with the scissors-bite rather than the symptoms of orofacial pain or TMJ sounds. PMID:27111032

  11. Lizard Bites

    Science.gov (United States)

    ... and Stings Introduction to Bites and Stings Alligator, Crocodile, and Iguana Bites Animal Bites Bee, Wasp, Hornet, ... and Stings Introduction to Bites and Stings Alligator, Crocodile, and Iguana Bites Animal Bites Bee, Wasp, Hornet, ...

  12. Snake bites

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    Bites - snakes ... Snake bites can be deadly if not treated quickly. Because of their smaller body size, children are ... risk for death or serious complications due to snake bites. The right antivenom can save a person's ...

  13. Occlusal management for a patient with aural symptoms of unknown etiology: a case report

    Directory of Open Access Journals (Sweden)

    Torii Kengo

    2007-09-01

    Full Text Available Abstract Background Although the discrepancy between the habitual occlusal position (HOP and the flat bite plate-induced occlusal position (BPOP (regarded as the muscular physiological reference position has been recently reported to be related to symptoms of temporomandibular disorders (TMDs, it still remains unclear whether the occlusal equilibration in the reference position is effective to resolve TMD-related discrepancy and symptoms. Aural symptoms (otalgia, tinnitus, vertigo et cetera have been included under TMD symptoms. Methods To examine the effect of occlusal equilibration for the treatment of TMDs, occlusal equilibration was performed for a patient with aural symptoms (otalgia, tinnitus and vertigo of unknown etiology in the right ear. An occlusal analysis was performed on this patient with dental models mounted on an articulator after relieving painful symptoms by an appliance therapy and a discrepancy was identified (p Results At completion of treatment, the discrepancy was not significant (p > 0.25, and the patient's right condyle had shifted 2.8 mm posteromedially in the horizontal plane, and the left condyle had shifted 1.0 mm laterally in the voluntarily closed position from the previous HOP. The aural symptoms of the patient were resolved, and there has been no recurrence to date after a two-year follow-up period. Conclusion An occlusal analysis should be performed in patients exhibiting TMD symptoms to identify the presence or absence of any discrepancy between the HOP and the BPOP. If a discrepancy exists, occlusal equilibration should be attempted in the reference position.

  14. Animal Bites

    Science.gov (United States)

    ... and complications from bites Never pet, handle, or feed unknown animals Leave snakes alone Watch your children closely around animals Vaccinate your cats, ferrets, and dogs against rabies Spay or neuter ...

  15. Animal Bites

    Science.gov (United States)

    Wild animals usually avoid people. They might attack, however, if they feel threatened, are sick, or are protecting their ... or territory. Attacks by pets are more common. Animal bites rarely are life-threatening, but if they ...

  16. Tick Bites

    Science.gov (United States)

    ... that go outdoors, you need to beware of ticks. Ticks are small bloodsucking parasites. Many species transmit diseases ... of the diseases you can get from a tick bite are Lyme disease, ehrlichiosis, Rocky Mountain spotted ...

  17. [Snake bites].

    Science.gov (United States)

    Vincent, J L; Créteur, J

    1995-11-01

    Snake bites are a rare occurrence in Belgium. Nevertheless, all doctors should know how to react to this potentially very dangerous emergency. A snakebite does not necessarily result in poisoning: the effects can range from a little local discomfort to a severe systemic reaction with multiple organ failure. Therefore, all snake bites must be treated as serious and should receive adequate treatment. At the same time, hysterical over reaction must be avoided for this risks complications. This article reviews the principal elements of snake bite treatment: from the emergency stage through to stabilization in the hospital. Key points raised are the necessity to immobilize the affected region, to establish adequate perfusion and to anticipate infectious complications. Serum therapy indications are reviewed together with adjuvant interventions such as corticotherapy and heparin therapy. PMID:7501910

  18. Human bites - self-care

    Science.gov (United States)

    Bites - human - self-care ... Human bites can occur in two ways: If someone bites you If your hand comes into contact ... bite to express anger or other negative feelings. Human bites may be more dangerous than animal bites. ...

  19. Insect Bites and Stings

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    Most insect bites are harmless, though they sometimes cause discomfort. Bee, wasp, and hornet stings and fire ant bites usually hurt. Mosquito and flea bites usually itch. Insects can also spread diseases. In the United States, ...

  20. Dog Bite Emergencies

    Science.gov (United States)

    ... Emergency Care Animal Welfare Veterinary Careers Public Health Dog bite emergencies What do I do if I’ ... vaccination records. What do I do if my dog bites someone? Dog bites are scary for everyone ...

  1. Reality Bites

    OpenAIRE

    Jul, David; Høst, Asger Kring; Licht, Esben Hendriksen; Rasmussen, Mette Løth; Petersen, Nikolaj Porn Sloth; Westergaard, Anna; Oustrup, Mads Damkjær

    2012-01-01

    Nærværende rapport omhandler designet af endagskonferencen Reality Bites, som blev afholdt på Roskilde Universitet torsdag den 10. maj 2012. Formålene med konferencen var at inspirere og provokere deltageren (målgruppen værende universitetsstuderende på 2. til 6. Semester), til at reflektere over egne evner, mål og muligheder og således motivere den studerende til, aktivt at bruge sin studietid som ramme til at udvikle og forme sig selv. Primært med udgangspunkt i Victor Turner og Richard Sch...

  2. Cat and Dog Bites

    Science.gov (United States)

    MENU Return to Web version Cat and Dog Bites Cat and Dog Bites How should I take care of a bite from a cat or a dog? Whether from a family pet or a neighborhood stray, cat and dog bites are common. Here are some things you ...

  3. Spider Bites (For Parents)

    Science.gov (United States)

    ... brown recluse spider bite: red blister in the center with surrounding bluish discoloration around the bite swelling or redness around the bite development of pain around the bite within 2 to 8 hours joint stiffness or pain nausea, vomiting body rash fever and ...

  4. Etiological aspects of anterior open bite

    Directory of Open Access Journals (Sweden)

    Stojanović Ljiljana

    2007-01-01

    Full Text Available Introduction. Open bite is a multifactorial phenomenon and no single factor can account for open-bite. Etiology plays an important role in diagnosis. Heredity, unfavorable growth patterns, incorrect jaw postoure, are the characteristics of skeletal open bite. Digit sucking. Depending on where the thumb is placed, a number of different types of dental problems can develop. Malocclusions of the late mixed or permanent dentitions, caused by thumb sucking are not self corrected and orthodontic treatment is necessary for their correction. Lymphatic tissue. In order to produce oral respiration, the mandible is postured inferiorly with the tongue protruded and resting against the oral floor. This postural alteration induces dental and skeletal modifications similar to those caused by thumb sucking. This may cause excessive eruption of the posterior teeth, leading to an increase in the vertical dimension of the face and result in development of anterior open bite. Tongue thrust. Tongue habits cause an anterior open bite or they develop secondarily to thumb sucking. In skeletal open bite the tongue habit acts as a secondary factor which helps to maintain or exacerbate the condition. Many orthodontists have had a discouraging experience of completing dental treatment, with what appeared to be good results, only to discover that the case had relapsed because the patient had a tongue thrust swallowing pattern. Conclusion. Dentoalveolar or habitual open bite is caused by habits, which influence the growth and development of dentoalveolar processes and contribute to occlusal disharmonies. Prior to eruption of adult dentition, open bite related to oral habits is usually not a concern as when the habits stop, because the erupting dentition tends to improve spontaneously. Treatment is usually not necessary until permanent teeth erupt (~6 years old. .

  5. Fighting and Biting

    Science.gov (United States)

    ... excessive or harsh discipline or exposure to physical violence. Parents should remember that children who are teething might also bite. Biting is the most common reason children get expelled from day care. What to ...

  6. Tick Bites (For Parents)

    Science.gov (United States)

    ... Things to Know About Zika & Pregnancy First Aid: Tick Bites KidsHealth > For Parents > First Aid: Tick Bites ... find on the skin. Signs and Symptoms Of Tick-Related Diseases: a red bump ringed by an ...

  7. Human bites (image)

    Science.gov (United States)

    Human bites present a high risk of infection. Besides the bacteria which can cause infection, there is ... the wound extends below the skin. Anytime a human bite has broken the skin, seek medical attention.

  8. Comparative Evaluation of Maximum Bite Force in Dentulous and Edentulous Individuals with Different Facial Forms

    OpenAIRE

    Tripathi, Gaurav; A.A., Ponnanna; Rajwadha, Nishant; Chhaparia, Nidhi; Sharma, Abhishek; Anant, Mahendra

    2014-01-01

    Purpose: The purpose of this study was to evaluate the mean maximum bite force in dentulous and edentulous individuals with Angle’s class-I occlusion and to assess the effect of different facial forms such as Square, Square-tapering, tapering and ovoid on the biting force.

  9. Temporomandibular disorders and psychological status in adult patients with a deep bite

    DEFF Research Database (Denmark)

    Sonnesen, Liselotte; Svensson, Peter

    2008-01-01

    Temporomandibular disorders (TMDs) and psychological status were examined in adult patients with a deep bite and compared with an adult age- and gender-matched control group with neutral occlusion. The deep bite group consisted of 20 females (mean age 30.3 years) and 10 males (mean age 33.1 years...... group compared with the controls. Somatization scores were significantly higher in the deep bite group compared with the controls (P psychological...

  10. Epulis and pyogenic granuloma with occlusal interference

    Directory of Open Access Journals (Sweden)

    Widowati Witjaksono

    2005-06-01

    Full Text Available In dental clinic of Hospital University Science Malaysia (HUSM, there were cases with Localized Gingival Enlargement (LGE in the oral cavity with occlusal interference. In this study, three cases were observed. They were a 13 - year- old female with fibrous lge around 31 and 32 with occlusal interference in protrusive movement due to X bite, a 15 - year – old female with pyogenic granuloma near 11 & 21 with occlusal interference due to deep bite; and a 24 – year – old female who was eight months in pregnancy with pyogenic granuloma on the 34-35 and severe generalized pregnancy gingivitis with occlusal interference in centric occlusion and lateral movement. Clinical and histopathological diagnosis of the first case showed fibrous epulis, whereas the second and third cases disclosed pyogenic granuloma. Chronic trauma of the gingiva due to occlusal interference was assumed to be the cause of those LGE in case 1 and 2, while in case 3 poor oral hygiene and chronic trauma were assumed to be the etiologic factors.

  11. Animal bites - self-care

    Science.gov (United States)

    Bites - animals - self-care ... Most animal bites come from pets. Dog bites are common and most often happen to children. Cat bites are ... which can cause deeper puncture wounds. Most other animal bites are caused by stray or wild animals, ...

  12. Tail biting in pigs.

    Science.gov (United States)

    Schrøder-Petersen, D L; Simonsen, H B

    2001-11-01

    One of the costly and welfare-reducing problems in modern pig production is tail biting. Tail biting is an abnormal behaviour, characterized by one pig's dental manipulation of another pig's tail. Tail biting can be classified into two groups: the pre-injury stage, before any wound on the tail is present, and the injury stage, where the tail is wounded and bleeding. Tail biting in the injury stage will reduce welfare of the bitten pig and the possible spread of infection is a health as well as welfare problem. The pigs that become tail biters may also suffer, because they are frustrated due to living in a stressful environment. This frustration may result in an excessive motivation for biting the tails of pen mates. This review aims to summarize recent research and theories in relation to tail biting. PMID:11681870

  13. Simulation of a flow around biting teeth

    Science.gov (United States)

    Narusawa, Hideaki; Yamamoto, Eriko; Kuwahara, Kunio

    2008-11-01

    We simulated a flow around biting teeth. The decayed tooth is a disease that a majority of people are annoyed. These are often generated from a deep groove at occlusal surface. It is known that a person who bites well doesn't suffer from a decayed tooth easily. Biting forces reach as much as 60 kg/cm^2 by an adult male, and when chewing, upper and lower teeth approach to bite by those forces. The crushed food mixed with saliva becomes high viscosity fluid, and is pushed out of ditches of teeth in the direction of the cheek or the tongue. Teeth with complex three dimension curved surface are thought to form venturi at this time, and to generate big pressure partially. An excellent dental articulation will possibly help a natural generation of a flow to remove dental plaque, i.e. the cause of the decayed tooth. Moreover, the relation of this flow with the destruction of the filled metal or the polymer is doubted. In this research, we try to clarify the pressure distributions by this flow generation as well as its dynamics when chewing. One of our goals is to enable an objective design of the shape of the dental fillings and the artificial tooth. Tooth has a very small uneven ground and a bluff body. In this case, to calculate a computational numerical simulation to solve the Navier-Stokes equations three dimension Cartesian coordinate system is employed.

  14. First Aid: Animal Bites

    Science.gov (United States)

    ... Story" 5 Things to Know About Zika & Pregnancy First Aid: Animal Bites KidsHealth > For Parents > First Aid: Animal Bites Print A A A Text Size ... For Kids For Parents MORE ON THIS TOPIC First Aid & Safety Center Infections That Pets Carry Dealing With ...

  15. Insect bites and stings

    Science.gov (United States)

    ... likely to cause itching than pain. Insect and spider bites cause more deaths from venom reactions than bites from snakes. ... are harmless. If possible, bring the insect or spider that bit you with you when you go for medical treatment so it can be identified.

  16. Bite Mark Analysis

    Directory of Open Access Journals (Sweden)

    SK Padmakumar

    2014-07-01

    Full Text Available Bite mark analysis plays an important role in personal identi- fi cation in forensic odontology. They are commonly seen in violent crimes such as sexual assaults, homicides, child abuse, etc. Human bites are common on the face and are usually seen on prominent locations of the face such as the ears, nose and lips. Individual characteristics recorded in the bite marks such as fractures, rotations, attrition, and congenital malformations are helpful in identifying the individual who caused it. We are reporting the case of a 55-year-old lady with bite marks on her left ear, who was allegedly assaulted by the suspect. On the basis of characteristic features of the suspect’s dentition, it was concluded that the bite marks seen on the victim was most probably caused by the suspect.

  17. Fire Ant Bites

    Science.gov (United States)

    ... Favorite Name: Category: Share: Yes No, Keep Private Fire Ant Bites Share | Fire ants are aggressive, venomous insects that have pinching ... across the United States, even into Puerto Rico. Fire ant stings usually occur on the feet or ...

  18. Rat Bite Fever

    Science.gov (United States)

    ... is followed 3 to 10 days later by: Fever and chills Headache Skin rash (mostly on the arms and ... 21 days later, the following symptoms may surface: Fever and chills Headache Ulceration at the site of the bite ...

  19. Tick Bites, First Aid

    Science.gov (United States)

    ... rashes clinical tools newsletter | contact Share | Tick Bites, First Aid A A A It is important to inspect ... temporary paralysis in their host (called tick paralysis). First Aid Guide To remove an embedded tick: Wash your ...

  20. Rehabilitation of Open Bite With Diastema Using Zirconia Ceramic Crowns: Case Report

    OpenAIRE

    Guven, Sedat; Karaman, Tahir; Unal, Mehmet; Melek, Ihsan Cemal

    2013-01-01

    Open bite is a lack of vertical overlap of the anterior teeth in centric occlusion. Diastema is defined as no contacts between proximal teeth. Dentofacial discrepancies negatively affect the speech, masticatory function and aesthetics. Where orthodontic and surgical treatments can not be applied, it is inevitable to carry out the restorative treatments to accomplish the function and the aesthetics. This clinical report presents the rehabilitation of a bilateral open bite with midline maxillar...

  1. Bone vs. bite: correcting a dental cross-bite using a Kois deprogrammer.

    Science.gov (United States)

    Tambosso, Tracy

    2014-03-01

    A patient presented with esthetic concerns that he believed would require lengthy orthodontic treatment, as well as jaw surgery, in order to correct. Functional analysis, however, indicated a cross-bite that was being caused by a functional shift rather than by skeletal asymmetry. Utilizing a simple restorative approach, the case was treated by equilibration of the dentition with the use of a Kois deprogrammer. The treatment plan involved mocking up restorations in composite to establish stable occlusion and quadrant dentistry to replace existing, questionable dental restorations. In the end, significant esthetic improvement was achieved in a highly conservative manner. PMID:24773198

  2. Amelogenesis imperfecta and anterior open bite: Etiological, classification, clinical and management interrelationships.

    Science.gov (United States)

    Alachioti, Xanthippi Sofia; Dimopoulou, Eleni; Vlasakidou, Anatoli; Athanasiou, Athanasios E

    2014-01-01

    Although amelogenesis imperfecta is not a common dental pathological condition, its etiological, classification, clinical and management aspects have been addressed extensively in the scientific literature. Of special clinical consideration is the frequent co-existence of amelogenesis imperfecta with the anterior open bite. This paper provides an updated review on amelogenesis imperfecta as well as anterior open bite, in general, and documents the association of these two separate entities, in particular. Diagnosis and treatment of amelogenesis imperfecta patients presenting also with anterior open bite require a lengthy, comprehensive and multidisciplinary approach, which should aim to successfully address all dental, occlusal, developmental, skeletal and soft tissue problems associated with these two serious clinical conditions.

  3. Brodie bite with an extracted mandibular first molar in a young adult: a case report.

    Science.gov (United States)

    Chugh, Vinay K; Sharma, Vijay P; Tandon, Pradeep; Singh, Gyan P

    2010-05-01

    Total buccal crossbites are rare, but, when they occur, they can be extremely difficult to correct, even with surgery and orthodontics. In most patients with in-locking crossbites, the maxillary teeth erupt past their mandibular antagonists, creating severe occlusal difficulties. This article presents an adult patient with scissors-bite or partial telescoping bite bilaterally in the posterior region and an extracted mandibular first molar on the right side. She was treated with expansion of the mandibular arch, and the subsequent open bite was closed with the help of masticatory muscle exercises and high-pull headgear. The second and third molars were uprighted and moved mesially to close the extraction spaces.

  4. Mosquito Bite Prevention For Travelers

    Science.gov (United States)

    Mosquito Bite Prevention for Travelers Mosquitoes spread many types of viruses and parasites that can cause diseases ... be available. Protect yourself and your family from mosquito bites. Here’s how: Keep mosquitoes out of your ...

  5. Animal bite - first aid - slideshow

    Science.gov (United States)

    ... this page: //medlineplus.gov/ency/presentations/100214.htm Animal bite - first aid - series To use the sharing ... D.A.M., Inc. Related MedlinePlus Health Topics Animal Bites A.D.A.M., Inc. is accredited ...

  6. Insect bite reactions

    Directory of Open Access Journals (Sweden)

    Sanjay Singh

    2013-01-01

    Full Text Available Insects are a class of living creatures within the arthropods. Insect bite reactions are commonly seen in clinical practice. The present review touches upon the medically important insects and their places in the classification, the sparse literature on the epidemiology of insect bites in India, and different variables influencing the susceptibility of an individual to insect bites. Clinical features of mosquito bites, hypersensitivity to mosquito bites Epstein-Barr virus NK (HMB-EBV-NK disease, eruptive pseudoangiomatosis, Skeeter syndrome, papular pruritic eruption of HIV/AIDS, and clinical features produced by bed bugs, Mexican chicken bugs, assassin bugs, kissing bugs, fleas, black flies, Blandford flies, louse flies, tsetse flies, midges, and thrips are discussed. Brief account is presented of the immunogenic components of mosquito and bed bug saliva. Papular urticaria is discussed including its epidemiology, the 5 stages of skin reaction, the SCRATCH principle as an aid in diagnosis, and the recent evidence supporting participation of types I, III, and IV hypersensitivity reactions in its causation is summarized. Recent developments in the treatment of pediculosis capitis including spinosad 0.9% suspension, benzyl alcohol 5% lotion, dimethicone 4% lotion, isopropyl myristate 50% rinse, and other suffocants are discussed within the context of evidence derived from randomized controlled trials and key findings of a recent systematic review. We also touch upon a non-chemical treatment of head lice and the ineffectiveness of egg-loosening products. Knockdown resistance (kdr as the genetic mechanism making the lice nerves insensitive to permethrin is discussed along with the surprising contrary clinical evidence from Europe about efficacy of permethrin in children with head lice carrying kdr-like gene. The review also presents a brief account of insects as vectors of diseases and ends with discussion of prevention of insect bites and some

  7. Bite by moray eel

    Directory of Open Access Journals (Sweden)

    JP Barreiros

    2008-01-01

    Full Text Available Injuries caused by moray eels are not a common problem, but are distributed throughout the globe, affecting mainly fishermen while manipulating hooked or netted fish. On a lesser scale, scuba divers and snorkelers, practicing or not spear fishing, are occasional victims of bites. With more than 185 species distributed among 15 genera, mostly in tropical to temperate shallow water, moray eels easily come into contact with humans and occasional injuries are not uncommon. The current study reports one case of moray eel bite and discusses the circumstances in which the accident happened, as well as wound evolution and therapy.

  8. Insect bite prevention.

    Science.gov (United States)

    Moore, Sarah J; Mordue Luntz, Anne Jennifer; Logan, James G

    2012-09-01

    Protection from the bites of arthropod (insect and acarine) vectors of disease is the first line of defense against disease transmission and should be advised in all cases when traveling abroad. Details are described of the main approaches for the prevention of bites, including topical or skin repellents, impregnated clothing, bed nets, and spatial or aerial repellents and aerosols. The bionomics of the main arthropod vectors of disease are described along with photographic plates and tabulated advice to give the traveler. An in-depth treatment of the different protection methodologies provides an up-to-date overview of the technologies involved. PMID:22963776

  9. African tick bite fever

    DEFF Research Database (Denmark)

    Johansen, Jakob Aaquist; Thybo, Søren

    2011-01-01

    The incident of spotted fever imported to Denmark is unknown. We present a classic case of African Tick Bite Fever (ATBF) to highlight a disease, which frequently infects wildlife enthusiasts and hunters on vacation in South Africa. ATBF has a good prognosis and is easily treated with doxycyclin...

  10. Mosquito Bites are Bad!

    Centers for Disease Control (CDC) Podcasts

    2016-08-11

    In this podcast for kids, the Kidtastics talk about the dangers of mosquito bites and how to prevent getting them.  Created: 8/11/2016 by National Center for Emerging and Zoonotic Infectious Diseases (NCEZID).   Date Released: 8/11/2016.

  11. Hydrogel based occlusion systems

    OpenAIRE

    Stam, F.A.; Jackson, N.; Dubruel, P.; Adesanya, K.; Embrechts, A.; Mendes, E.; Neves, H.P.; Herijgers, P.; Verbrugghe, Y.; Shacham, Y; Engel, L.; Krylov, V.

    2013-01-01

    A hydrogel based occlusion system, a method for occluding vessels, appendages or aneurysms, and a method for hydrogel synthesis are disclosed. The hydrogel based occlusion system includes a hydrogel having a shrunken and a swollen state and a delivery tool configured to deliver the hydrogel to a target occlusion location. The hydrogel is configured to permanently occlude the target occlusion location in the swollen state. The hydrogel may be an electro-activated hydrogel (EAH) which could be ...

  12. Oral Rehabilitation With Orthognathic Surgery After Dental Implant Placement for Class III Malocclusion With Skeletal Asymmetry and Posterior Bite Collapse.

    Science.gov (United States)

    Ohba, Seigo; Nakatani, Yuya; Kawasaki, Takako; Tajima, Nobutaka; Tobita, Takayoshi; Yoshida, Noriaki; Sawase, Takashi; Asahina, Izumi

    2015-08-01

    Increasing numbers of older patients are seeking orthognathic surgery to treat jaw deformity. However, orthodontic and orthognathic surgical treatment is difficult in cases without occlusal vertical stop. A 55-year-old man presented with Class III malocclusion and mandibular protrusion including esthetic problems and posterior bite collapse. He underwent dental implant treatment to reconstruct an occlusal vertical stop before orthognathic surgery. His occlusal function and esthetic problems improved after surgery, and his skeletal and occlusal stability has been maintained for 6 years. Dental implant placement at appropriate positions could help to determine the position of the proximal segment at orthognathic surgery and could shorten the time required to restore esthetic and occlusal function. This case demonstrates how skeletal and dental stability can be maintained long after surgery in a patient with jaw deformity and posterior bite collapse. PMID:26035376

  13. Assessment of open and incomplete bite correction by incisor overlap and optical density of polyvinyl siloxane bite registration.

    Science.gov (United States)

    Shpack, Nir; Einy, Shmuel; Beni, Lea; Vardimon, Alexander D

    2006-04-01

    Open bite (OB) is a generalized term, which could incorporate subgroups that react differently to vertical correction. The objectives of the present study were to detect vertical treatment changes in incomplete bite (IB: inter-incisor overlap with no lower incisor contact with teeth or palate) and OB (no inter-incisor overlap) groups compared with a complete bite (CB: inter-incisor overlap with full lower incisor contact with teeth or palate) control group, to evaluate treatment response of the central and lateral incisors, and to study the vertico-sagittal interaction. Dental casts were taken at three time points, pre-treatment, post-treatment, and after one year of retention, from 54 Class II patients (22 males and 32 females with a mean age of 11 years 6 months) divided into three groups: CB (n = 21), IB (n = 18) and OB (n = 15). Measurements included incisor overlap (mm) and optical density (OD/mm2) of occlusal bite registration made of polyvinl siloxane. Both CB and IB groups demonstrated post-retention bite opening. However, bite opening in the CB group was three times greater than that in the IB group (e.g. lower lateral = -1.42 mm, 118 OD/mm2 versus -0.40 mm, 107 OD/mm2). Conversely, the OB group showed a significant (P < 0.001) bite closure (e.g. lower lateral = 1.30 mm, -377 OD/mm2). Overjet changes affected OD measurements, causing diversity in OD and millimetric measurements of the lateral incisors in the IB group. In conclusion, the OB group demonstrated a significant stable vertical correction; a post-treatment non-contact inter-incisor relationship was determined by a vertico-sagittal relapse; and full compensation of an IB was not possible.

  14. Food aroma affects bite size

    Directory of Open Access Journals (Sweden)

    de Wijk René A

    2012-03-01

    Full Text Available Abstract Background To evaluate the effect of food aroma on bite size, a semisolid vanilla custard dessert was delivered repeatedly into the mouth of test subjects using a pump while various concentrations of cream aroma were presented retronasally to the nose. Termination of the pump, which determined bite size, was controlled by the subject via a push button. Over 30 trials with 10 subjects, the custard was presented randomly either without an aroma, or with aromas presented below or near the detection threshold. Results Results for ten subjects (four females and six males, aged between 26 and 50 years, indicated that aroma intensity affected the size of the corresponding bite as well as that of subsequent bites. Higher aroma intensities resulted in significantly smaller sizes. Conclusions These results suggest that bite size control during eating is a highly dynamic process affected by the sensations experienced during the current and previous bites.

  15. Biomechanics of occlusion--implications for oral rehabilitation.

    Science.gov (United States)

    Peck, C C

    2016-03-01

    The dental occlusion is an important aspect of clinical dentistry; there are diverse functional demands ranging from highly precise tooth contacts to large crushing forces. Further, there are dogmatic, passionate and often diverging views on the relationship between the dental occlusion and various diseases and disorders including temporomandibular disorders, non-carious cervical lesions and tooth movement. This study provides an overview of the biomechanics of the masticatory system in the context of the dental occlusion's role in function. It explores the adaptation and precision of dental occlusion, its role in bite force, jaw movement, masticatory performance and its influence on the oro-facial musculoskeletal system. Biomechanics helps us better understand the structure and function of biological systems and consequently an understanding of the forces on, and displacements of, the dental occlusion. Biomechanics provides insight into the relationships between the dentition, jaws, temporomandibular joints, and muscles. Direct measurements of tooth contacts and forces are difficult, and biomechanical models have been developed to better understand the relationship between the occlusion and function. Importantly, biomechanical research will provide knowledge to help correct clinical misperceptions and inform better patient care. The masticatory system demonstrates a remarkable ability to adapt to a changing biomechanical environment and changes to the dental occlusion or other components of the musculoskeletal system tend to be well tolerated. PMID:26371622

  16. Esthetic correction in open bite

    Directory of Open Access Journals (Sweden)

    Swapnil Parlani

    2011-01-01

    Full Text Available Deleterious oral habits, which are persistent, can lead to poor esthetics of a beautiful face. Conventional treatment modalities for an open bite usually include orthodontic treatment and/or skeletal surgery. This article focuses on a different treatment modality for an anterior open bite.

  17. Animal Bites of the Hand

    Science.gov (United States)

    ... history of the bite, including the type of animal and its health (behavior and rabies vaccine status), the time and location of the event, circumstances of the bite, whereabouts of the animal, and the pre-hospital treatment will be reviewed. ...

  18. Occlusion effects, Part II

    DEFF Research Database (Denmark)

    Hansen, Mie Østergaard

    The present report studies the mechanism of the occlusion effect by means of literature studies, experiments and model estimates. A mathematical model of the occlusion effect is developed. The model includes the mechanical properties of the earmould and the airborne sound as well as the body...

  19. Retinal artery occlusion

    Science.gov (United States)

    ... artery occlusion; Branch retinal artery occlusion; CRAO; BRAO Images Retina References Sanborn GE, Magargal LE. Arterial obstructive disease ... A.M. Editorial team. Related MedlinePlus Health Topics ... audit to verify that A.D.A.M. follows rigorous standards of quality and accountability. A.D.A.M. is among ...

  20. Occlusion effects, Part I

    DEFF Research Database (Denmark)

    Hansen, Mie Østergaard

    annoyances and the objective measurements were analysed. Persons suffering from tinnitus behaved differently than person without tinnitus. The latter group showed significant relations between the measured occlusion effect, hearing loss and the personal of occlusion. The actual sensation level is also...

  1. Hydrogel based occlusion systems

    NARCIS (Netherlands)

    Stam, F.A.; Jackson, N.; Dubruel, P.; Adesanya, K.; Embrechts, A.; Mendes, E.; Neves, H.P.; Herijgers, P.; Verbrugghe, Y.; Shacham, Y.; Engel, L.; Krylov, V.

    2013-01-01

    A hydrogel based occlusion system, a method for occluding vessels, appendages or aneurysms, and a method for hydrogel synthesis are disclosed. The hydrogel based occlusion system includes a hydrogel having a shrunken and a swollen state and a delivery tool configured to deliver the hydrogel to a tar

  2. Homicidal Snake Bite in Children.

    Science.gov (United States)

    Paulis, Melad G; Faheem, Ayman L

    2016-03-01

    Snake bites are common in many regions of the world. Snake envenomation is relatively uncommon in Egypt; such unfortunate events usually attract much publicity. Snake bite is almost only accidental, occurring in urban areas and desert. Few cases were reported to commit suicide by snake. Homicidal snake poisoning is so rare. It was known in ancient world by executing capital punishment by throwing the victim into a pit full of snakes. Another way was to ask the victim to put his hand inside a small basket harboring a deadly snake. Killing a victim by direct snake bite is so rare. There was one reported case where an old couple was killed by snake bite. Here is the first reported case of killing three children by snake bite. It appeared that the diagnosis of such cases is so difficult and depended mainly on the circumstantial evidences. PMID:27404632

  3. 安徽省18~30岁青年咬合关系临床调查分析%A clinical survey and analysis on the bite relationship of occlusion in youth and 18 ~ 30 years old in Anhui

    Institute of Scientific and Technical Information of China (English)

    曾红梅; 周学军; 韩冬

    2011-01-01

    Objective To investigate and analyse the prevalent even symptoms of malocclusion、sanine relationship and molar relationship in youth of 18 to 30 years old in Anhui. Methods This survey was based on WHO oral surveys basic methods,and adopted the classification standard of individual normal occlusion canine relationship and molar relationship. The random sampling method was used and a random sample of 1206( men 710,women 496)youth,aged between 18 and 30 without history of orthodontic,were chosen from Anhui province.The study was carried out by orthodontic specialist from Hefei lth People's Hospital Department of Stomatology. Results The prevalence of malocclusion among youth at 18 ~30 years old from Anhui was 87.81% ( men 86.48% ,women 89.72% ). Women's right and left canine relationship Class I ,Class Ⅱ ,Class Ⅲ were 20.23% and 55.73% and 24.04% and 22.25% ,55.73% and 22.02% respectively. Men's right and left canine relationship Class Ⅰ ,Class Ⅱ ,ClassⅢ were 13.36% 、56.51% ,30. 13% and 20.52% ,44.79% and 34.69% respectively.Women's right and left molar relationship of Angle Class I was 42.02% and 41.12% ,Angle Class Ⅱ was 31.24% and 28.09% ,Angle Class Ⅲ was 26.74% and 30.79%. Men's right and left molar relationship of Angle Class I was 28. 0l % and 27.04%, Angle Class Ⅱ was 37.46% and 33.22% ,Angle ClassⅢ was 34.53% and 39.74%. Conclusion The morbility rate of malocclusion is high. Class I of canine and molar relationship is low. Malocclusion and abnormal bite relationship should be taught and treated as early as possible. and the situation is critical.%目的 调查分析安徽省18~30岁青年错(牙合)畸形患病率及尖牙、磨牙关系情况.方法 根据WHO出版的口腔健康调查基本方法,以个别正常(牙合)和尖牙、磨牙关系分类法为标准,由口腔正畸科专业医师从合肥市第一人民医院口腔科就诊人员中随

  4. Modified Thurow appliance: a clinical alternative for correcting skeletal open bite.

    Science.gov (United States)

    Stuani, Maria Bernadete Sasso; Stuani, Andréa Sasso; Stuani, Adriana Sasso

    2005-07-01

    Open bite malocclusion is frequently discussed in orthodontics; diagnosis, treatment, and retention can be difficult because this malocclusion has numerous correlated etiological factors. The earlier this malocclusion is corrected, the better the prognosis will be, especially when the problem is skeletal. This article presents a patient with skeletal open bite who was treated in the mixed dentition with an orthodontic appliance that included an acrylic occlusal splint and an expansion screw, based on the original Thurow appliance, to guide the vertical force against the posterior teeth and the alveolar process.

  5. An alternative treatment of occlusal wear: Cast metal occlusal surface

    OpenAIRE

    Sandeep Kumar; Aman Arora; Reena Yadav

    2012-01-01

    Acrylic resin denture teeth often exhibit rapid occlusal wear, which may lead to decrease in the chewing efficiency, loss of vertical dimension of occlusion, denture instability, temporomandibular joint disturbances, etc. There are various treatment options available like, use of highly cross linked acrylic teeth, amalgam or metal inserts on occlusal surface, use of composite, gold or metal occlusal surface, etc. Several articles have described methods to construct gold and metal occlusal sur...

  6. Injurious tail biting in pigs

    DEFF Research Database (Denmark)

    D'Eath, R.B.; Amott, G.; Turner, S. P.;

    2014-01-01

    risk, it is important to detect and treat tail biting as soon as it occurs. Early warning signs before the first bloody tails appear, such as pigs holding their tails tucked under, could in future be automatically detected using precision livestock farming methods enabling earlier reaction......Tail biting is a serious animal welfare and economic problem in pig production. Tail docking, which reduces but does not eliminate tail biting, remains widespread. However, in the EU tail docking may not be used routinely, and some ‘alternative’ forms of pig production and certain countries do...... not allow tail docking at all. Against this background, using a novel approach focusing on research where tail injuries were quantified, we review the measures that can be used to control tail biting in pigs without tail docking. Using this strict criterion, there was good evidence that manipulable...

  7. Ticks and Diseases: Bite Fright!

    Science.gov (United States)

    ... of this page please turn Javascript on. Feature: Ticks and Diseases Bite Fright! Past Issues / Spring - Summer ... can bring on serious health problems. What Are Ticks? If you spend any time outdoors, you've ...

  8. Tail biting and feather pecking

    OpenAIRE

    Brunberg, Emma

    2011-01-01

    It is well known that abnormal animal behaviour is affected by both environment and genetics. This thesis aimed to use behavioural observations as well as gene expression measurements to explore how animals that perform and receive tail biting (pigs) and feather pecking (laying hens) differ from individuals that are not involved in these behaviours. In study I, the results suggested that tail biting is related to other abnormal behaviours. Pigs performing a high frequency of tail bi...

  9. The management of snake bite*

    OpenAIRE

    Reid, H A; Theakston, R D G

    1983-01-01

    The present article reviews current knowledge on the epidemiology, pathophysiology, and treatment of snake bite, with particular reference to the situation in developing countries. There is little reliable information on the incidence of snake bite in many parts of the world, and epidemiological studies are needed, using enzyme-linked immunosorbent assay to identify and quantify serum levels of venom antigen and antibody. The pathophysiology and clinical features of envenoming by medically im...

  10. Computer–based method of bite mark analysis: A benchmark in forensic dentistry?

    Science.gov (United States)

    Pallam, Nandita Kottieth; Boaz, Karen; Natrajan, Srikant; Raj, Minu; Manaktala, Nidhi; Lewis, Amitha J.

    2016-01-01

    Aim: The study aimed to determine the technique with maximum accuracy in production of bite mark overlay. Materials and Methods: Thirty subjects (10 males and 20 females; all aged 20–30 years) with complete set of natural upper and lower anterior teeth were selected for this study after obtaining approval from the Institutional Ethical Committee. The upper and lower alginate impressions were taken and die stone models were obtained from each impression; overlays were produced from the biting surfaces of six upper and six lower anterior teeth by hand tracing from study casts, hand tracing from wax impressions of the bite surface, radiopaque wax impression method, and xerographic method. These were compared with the original overlay produced digitally. Results: Xerographic method was the most accurate of the four techniques, with the highest reproducibility for bite mark analysis. The methods of wax impression were better for producing overlay of tooth away from the occlusal plane. Conclusions: Various techniques are used in bite mark analysis and the choice of technique depends largely on personal preference. No single technique has been shown to be better than the others and very little research has been carried out to compare different methods. This study evaluated the accuracy of direct comparisons between suspect's models and bite marks with indirect comparisons in the form of conventional traced overlays of suspects and found the xerographic technique to be the best. PMID:27051221

  11. [Snake bite injuries].

    Science.gov (United States)

    Turchányi, B; Szalontay, T; Zacher, G

    2000-05-14

    Authors treated five patients who suffered venomous snake-bite injury. Although these snakes are not native in Hungary, this kind of injury is estimated to be more frequent, because of the increasing number of the private collections and illegal import of these reptiles. The local and general symptoms, the therapeutic steps are summarised in this study considering the literature as well. Two patients did not show any systemic or local symptoms at the level of injury, they needed only short observation, and woundcare. The other three patients had serious transient systematic symptoms (vasolability, hypotension/shock, coagulopathy, confusion). Two of them were given specific antivenom. As the third patient did not agree with the serum therapy, plasmapheresis was the choice to treat him, and it seemed to be effective. Few hours later the patients needed surgery because of serious compartment syndrome of their affected upper extremity. Surgical decompression of all the compartments and different possibilities of the secondary skin closure technique are demonstrated. Two patient healed completely, but the right thumb of the third was lost. Authors summarise the effects of the poisons, the symptoms, and the basic therapeutic steps during the first aid and in the primary hospital phase, respectively. They point out the indications of the serum therapy and the correct surgical decompression of the injured extremity. PMID:10851889

  12. Temporalis and masseter muscle activity in patients with anterior open bite and craniomandibular disorders

    DEFF Research Database (Denmark)

    Bakke, Merete; Michler, L

    1991-01-01

    Activity in temporalis and masseter muscles, and traits of facial morphology and occlusal stability were studied in 22 patients (19 women, 3 men; 15-45 yr of age) with anterior open bite and symptoms and signs of craniomandibular disorders. Facial morphology was assessed by profile radiographs......, occlusal stability by tooth contacts, and craniomandibular function by clinical and radiological examination. Electromyographic activity was recorded by surface electrodes after primary treatment with a reflex-releasing, stabilizing splint. Maximal voluntary contraction was reduced compared to reference...

  13. Cervical vertebral body fusions in patients with skeletal deep bite.

    Science.gov (United States)

    Sonnesen, Liselotte; Kjaer, Inger

    2007-10-01

    Cervical column morphology was examined in 41 adult patients with a skeletal deep bite, 23 females aged 22-42 years (mean 27.9) and 18 males aged 21-44 years (mean 30.8) and compared with the cervical column morphology in an adult control group consisting of 21 subjects, 15 females, aged 23-40 years (mean 29.2 years) and six males aged 25-44 years (mean 32.8 years) with neutral occlusion and normal craniofacial morphology. None of the patients or control subjects had received orthodontic treatment. For each individual, a visual assessment of the cervical column and measurements of the cranial base angle, vertical craniofacial dimensions, and morphology of the mandible were performed on a profile radiograph. In the deep bite group, 41.5 per cent had fusion of the cervical vertebrae and 9.8 per cent posterior arch deficiency. The fusion always occurred between C2 and C3. No statistically significant gender differences were found in the occurrence of morphological characteristics of the cervical column (females 43.5 per cent, males 38.9 per cent). Morphological deviations of the cervical column occurred significantly more often in the deep bite group compared with the control group (P analysis showed that the vertical jaw relationship (P vertebrae (R(2) = 0.40).

  14. How to Keep Bug Bites At Bay

    Science.gov (United States)

    ... gov/news/fullstory_160047.html How to Keep Bug Bites at Bay CDC offers advice on thwarting ... 23, 2016 SATURDAY, July 23, 2016 (HealthDay News) -- Bug bites can make you more than itchy. Ticks, ...

  15. Heridas por Mordedura / Bites Injuries

    Directory of Open Access Journals (Sweden)

    Coturel A

    2015-11-01

    Full Text Available Injuries for animal bites are a common cause of consultation to emergency services. However there are still controversies about some aspects of their treatment. It is not recommended to brush the wound area but to flush the surface with isoosmolar saline. The primary wound closure is justified when improves the cosmetic outcome and has no increase risk of infection. Antibiotic prophylaxis is allways indicated in cats or humans bites. The drug of choice is amoxicillin clavulanate.The tetanus vaccine should be indicated when the patient has not full vaccination scheme and rabies vaccine in cases of suspected or confirmed infected animals.

  16. A preliminary study of the occlusal ;contact of complete denture%全口义齿患者咬合接触特征初探

    Institute of Scientific and Technical Information of China (English)

    贺淑贞; 王丁

    2014-01-01

    Objective To evaluate the occlusal contact characteristics of complete denture.Methods Twenty edentulous patients were involved in this study and were restored with complete dentures.After they were satisfied with the dentures,the patients occlusions were analyzed with T-ScanIII system.The occlusion time ,posterior occlusal contact point and bite distribution degree of balance were recorded and compared with the occlusion of twerty-two normal person. Results The occlusion time of twenty evaluate patients is 0.858±0.619,more than the group ofnormal occlusion(P0.05)。结论全口义齿患者的功能咬合接触特征与正常合的T-Scan表现有一定差异,有其独有特征。

  17. Retinal vein occlusion

    Science.gov (United States)

    ... decrease the risk of retinal vein occlusion. These measures include: Eating a low-fat diet Getting regular exercise Maintaining an ideal weight Not smoking Aspirin or other blood thinners may help prevent blockages in the other eye. Controlling diabetes may ...

  18. Food aroma affects bite size

    NARCIS (Netherlands)

    Wijk, de R.A.; Polet, I.A.; Boek, W.; Coenraad, S.; Bult, J.H.F.

    2012-01-01

    Background
    To evaluate the effect of food aroma on bite size, a semisolid vanilla custard dessert was delivered repeatedly into the mouth of test subjects using a pump while various concentrations of cream aroma were presented retronasally to the nose. Termination of the pump, which determined b

  19. The management of snake bite.

    Science.gov (United States)

    Reid, H A; Theakston, R D

    1983-01-01

    The present article reviews current knowledge on the epidemiology, pathophysiology, and treatment of snake bite, with particular reference to the situation in developing countries. There is little reliable information on the incidence of snake bite in many parts of the world, and epidemiological studies are needed, using enzyme-linked immunosorbent assay to identify and quantify serum levels of venom antigen and antibody. The pathophysiology and clinical features of envenoming by medically important snakes are discussed. Antivenom, if used correctly, can reverse systemic poisoning even if given days after the bite. It is therefore wise to wait for the appearance of signs of systemic poisoning before administering antivenom, rather than using it routinely. WHO has designated the Liverpool School of Tropical Medicine as a Collaborating Centre for the Control of Antivenoms, and this Centre now holds a collection of reference venoms from several important snake species. Characterization of these and of standard antivenoms should significantly improve the management of snake bite throughout the world. PMID:6609008

  20. Gender influence on occlusal characteristics in the primary dentition

    Directory of Open Access Journals (Sweden)

    Nisha Rani Yadav

    2014-01-01

    Full Text Available Objectives: The objective of this study was to assess and discuss the influence of gender on occlusal characteristics of primary dentition. Materials and Methods: In this study, cluster randomized sampling was done to select 4-6-year-old children from Government primary schools of Farukh Nagar block, Gurgaon, Haryana, India. Children were evaluated clinically for occlusal characteristics of primary dentition such as molar relation, Canine relation, overjet, overbite, openbite, scissors bite, and crossbite. Chi-square test was used to compare the occlusal characteristics of both genders. Results: Flush terminal plane, Class I Canine relation and both primate as well as developmental spaces were found to be prevalent in the study population, in percentages of 62.4%, 67.2%, and 37.6%, respectively. It was observed that females had more spacing, distal step molar relation and increased overjet as compared to males. Males had more Class II Canine relation, crowding, openbite, overbite, and incompetent lips as compared to females. Significant differences were found between males and females w.r.t various occlusal characteristics. Conclusion: Most of the children had gender influence on malocclusion, which indicates the need for early interception or correction of malocclusion traits based on the gender of the child.

  1. Infrarenal Aortic Occlusion

    Science.gov (United States)

    Traverso, L. W.; Baker, J. D.; Dainko, E. A.; Machleder, H. I.

    1978-01-01

    Twenty-eight patients with total occlusion of the infrarenal aorta have been seen at the UCLA Hospitals in the past 11 years. Claudication was the presenting complaint in all but one patient, with one-third having ischemic rest pain. The average age of these patients was 54 years, and their histories revealed a surprising absence of myocardial infarction, stroke, or diabetes, although 40% had essential hypertension. Heavy tobacco use, however, was characteristic of the entire group. Arteriography proved valuable in identifying and characterizing the vascular abnormalities, but posed problems in technique and interpretation. Significant distal arterial disease was detected radiographically in only 21% of these patients. Operative correction of the aortic occlusion was performed on 26 patients, 18 by aortic bypass grafts and eight by aorto-iliac endarterectomy, with one early postoperative death. Although the thrombus extended to the renal artery origins in 77% of the cases, a well-designed technical approach did not require renal artery occlusion. Using serial creatinine determinations, one case of renal insufficiency was detected which was associated with prolonged postoperative hypotension. Although the extent of distal disease was more severe in those who underwent bypass, symptoms of claudication returned earlier and were more prominent in the endarterectomy group. This recurrence of systems was not favorably altered by sympathectomy performed concomitantly with the initial procedure. Even though this condition seems to pose difficult technical obstacles and has a poor prognosis, infrarenal aortic occlusion can be successfully treated by aortic bypass, with favorable long-term results, if particular attention is paid to elements of the preoperative evaluation and the intraoperative technical requirements peculiar to this relatively uncommon disease entity. ImagesFig. 1.Fig. 2.Fig. 3. PMID:646479

  2. Left atrial appendage occlusion

    Directory of Open Access Journals (Sweden)

    Ahmad Mirdamadi

    2013-01-01

    Full Text Available Left atrial appendage (LAA occlusion is a treatment strategy to prevent blood clot formation in atrial appendage. Although, LAA occlusion usually was done by catheter-based techniques, especially percutaneous trans-luminal mitral commissurotomy (PTMC, it can be done during closed and open mitral valve commissurotomy (CMVC, OMVC and mitral valve replacement (MVR too. Nowadays, PTMC is performed as an optimal management of severe mitral stenosis (MS and many patients currently are treated by PTMC instead of previous surgical methods. One of the most important contraindications of PTMC is presence of clot in LAA. So, each patient who suffers of severe MS is evaluated by Trans-Esophageal Echocardiogram to rule out thrombus in LAA before PTMC. At open heart surgery, replacement of the mitral valve was performed for 49-year-old woman. Also, left atrial appendage occlusion was done during surgery. Immediately after surgery, echocardiography demonstrates an echo imitated the presence of a thrombus in left atrial appendage area, although there was not any evidence of thrombus in pre-pump TEE. We can conclude from this case report that when we suspect of thrombus of left atrial, we should obtain exact history of previous surgery of mitral valve to avoid misdiagnosis clotted LAA, instead of obliterated LAA. Consequently, it can prevent additional evaluations and treatments such as oral anticoagulation and exclusion or postponing surgeries including PTMC.

  3. An alternative treatment of occlusal wear: cast metal occlusal surface.

    Science.gov (United States)

    Kumar, Sandeep; Arora, Aman; Yadav, Reena

    2012-01-01

    Acrylic resin denture teeth often exhibit rapid occlusal wear, which may lead to decrease in the chewing efficiency, loss of vertical dimension of occlusion, denture instability, temporomandibular joint disturbances, etc. There are various treatment options available like, use of highly cross linked acrylic teeth, amalgam or metal inserts on occlusal surface, use of composite, gold or metal occlusal surface, etc. Several articles have described methods to construct gold and metal occlusal surfaces, however, these methods are time-consuming, expensive and requires many cumbersome steps. These methods also requires the patient to be without the prosthesis for the time during which the laboratory procedures are performed. This article presents a quick, simple and relatively inexpensive procedure for construction of metal occlusal surfaces on complete dentures. PMID:22945724

  4. An alternative treatment of occlusal wear: Cast metal occlusal surface

    Directory of Open Access Journals (Sweden)

    Sandeep Kumar

    2012-01-01

    Full Text Available Acrylic resin denture teeth often exhibit rapid occlusal wear, which may lead to decrease in the chewing efficiency, loss of vertical dimension of occlusion, denture instability, temporomandibular joint disturbances, etc. There are various treatment options available like, use of highly cross linked acrylic teeth, amalgam or metal inserts on occlusal surface, use of composite, gold or metal occlusal surface, etc. Several articles have described methods to construct gold and metal occlusal surfaces, however, these methods are time-consuming, expensive and requires many cumbersome steps. These methods also requires the patient to be without the prosthesis for the time during which the laboratory procedures are performed. This article presents a quick, simple and relatively inexpensive procedure for construction of metal occlusal surfaces on complete dentures.

  5. Do the physical properties of occlusal-indicating media affect muscle activity [EMG) during use?

    Science.gov (United States)

    Forrester, Stephanie E; Pain, Matthew T G; Presswood, Ron; Toy, Andy

    2009-06-01

    Four occlusal marking media (Parkell film, articulating silk, articulating paper and T-Scan foil) were tested to assess whether they affected neuromuscular function during occlusal marking events. Muscle activity of the anterior temporalis (TA) and superficial masseter (MS) muscles were obtained from surface EMG measurements during a slow closure to occlusion followed immediately by a forceful bite and a maximum clench onto each of the various occlusal indicating media. Muscle activity during the whole period of activation and immediately following onset were investigated. Significant differences in neuromuscular function between the occlusal marking media were observed, particularly between the Parkell film and articulating silk as opposed to the articulating paper and the T-Scan foil. The Parkell film and articulating silk gave neuromuscular function very similar to that of natural dentition occlusal contact, while the articulating paper and T-Scan foil showed similarities to occluding onto cotton rolls as previously reported (1). These results suggest that both the thickness and plasticity of the indicating media affect neuromuscular function during occlusion.

  6. [Viper bite treatment in Spain].

    Science.gov (United States)

    Estefanía Díez, M; Alonso Peña, D; García Cano, P; López Gamo, A

    2016-01-01

    Viper snake bite is, by far, the most common ophidian accident in Spain. It is responsible for between 100 and 150 hospitalizations per year in this country, although it is difficult to determine the frequency of emergency admissions due to this cause. The cornerstone to their approach rests on the correct evaluation of the possible effects derived from envenomation and the use of anti-venoms. In spite of all the controversies surrounding the use of anti-venoms, they have become a powerful therapeutic weapon ever since the serum has been highly purified and the great decrease of related anaphylactic reactions. The aim of this article is to update the emergency room procedures when viper bites are suspected, and to clarify the main therapeutic recommendations. PMID:25440968

  7. Leptospirosis and an animal bite

    OpenAIRE

    Brenden A Bedard; Kennedy, Byron S.; Anita C Weimer; Anthony Petruso; Richard Magnussen

    2014-01-01

    In October 2013, leptospirosis was identified in a 20-year-old male. The male was bitten on his hand by either his canine or a skunk while breaking up a fight between the two animals. Eight days after the bite, the male developed fever, headache, drowsiness, neck pain, nausea, vomiting, diarrhea, malaise and erythematous rash. Diagnosis was confirmed by amplification of Leptospira by DNA from a urine specimen. Veterinarian serology testing of the canine for Leptospira was negative. Leptospira...

  8. Pulmonary veno-occlusive disease

    Science.gov (United States)

    Pulmonary vaso-occlusive disease ... common among children and young adults. As the disease gets worse, it causes narrowed pulmonary veins, pulmonary artery hypertension , and congestion and swelling ...

  9. The lingualized occlusion of complete denture

    Institute of Scientific and Technical Information of China (English)

    BEN Wei-hong; Eleni Roumanas

    2008-01-01

    This article reviews the literatures dealing with the lingualized occlusion of complete denture including the origin,development and research. Lingualized occlusion is a valuable concept because many advantages of anatomic and nonanatomic occlusions are retained,satisfactory occlusion is easily obtained,balanced occlusion can be accomplished.

  10. Treatment of anterior open bite and multiple missing teeth with lingual fixed appliances, double jaw surgery, and dental implants.

    Science.gov (United States)

    Jung, Min-Ho; Baik, Un-Bong; Ahn, Sug-Joon

    2013-04-01

    The treatment of adult patients with severe anterior open bite frequently requires orthognathic surgery, especially when the chin is retruded severely. If a patient has multiple missing posterior teeth, it is difficult to control the occlusal plane because it is challenging to obtain anchorage during orthodontic treatment. We report on a 25-year-old woman who had a skeletal Class II malocclusion, severe anterior open bite, vertical maxillary asymmetry, and severe dental caries on her molars. There was no posterior occlusal contact between the maxillary and mandibular molars since 5 of her molars had to be extracted because of severe caries. Lingual fixed appliances and double jaw surgery were performed to treat her skeletal and dental problems, and dental implants helped restore her masticatory function. Pretreatment, posttreatment, and retention photographs demonstrate effective, esthetically pleasing, and stable treatment results. PMID:23540629

  11. The influence of bite size and multiple bites on oral texture sensations

    NARCIS (Netherlands)

    Wijk, de R.A.; Engelen, L.; Prinz, J.F.; Weenen, H.

    2003-01-01

    The influence of bite size on sensory mouth- and afterfeel sensations was explored in two studies in which single bites of vanilla custard desserts were varied from 2 to 11 ml (study 1) and in which series of five bites of two different custard desserts were presented consecutively (study 2). In sin

  12. The influence of bite size and multiple bites on oral texture sensations

    NARCIS (Netherlands)

    Wijk, R.A. de; Engelen, L.; Prinz, J.F.; Weenen, H.

    2003-01-01

    The influence of bite size on sensory mouthfeel and afterfeel sensations was explored in two studies in which single bites of vanilla custard desserts were varied from 2 to 11 mL (study 1) and in which series of five bites of two different custard desserts were presented consecutively (study 2). In

  13. Nonsurgical treatment of adult open bite using edgewise appliance combined with high-pull headgear and class III elastics.

    Science.gov (United States)

    Saito, Isao; Yamaki, Masaki; Hanada, Kooji

    2005-03-01

    This case report describes the effect of a combination of high-pull headgear and Class III elastics on the nonsurgical treatment of an adult open bite. The 19-year 1-month-old Japanese female presented with the anterior open bite of 4.0 mm and mild crowding. She had a skeletal Class II but a Class III molar relationship due to a severe proclination of the mandibular dental arch. Unilateral congenital missing premolars caused a discrepancy between the facial and dental midline. After extraction of two premolars and the impacted mandibular third molars, nonsurgical therapy was performed using the standard edgewise appliance combined with a high-pull headgear and Class III elastics. The successful treatment outcome and stability of the final occlusion indicates that a combination of high-pull headgear and Class III elastics is one of the effective devices in the nonsurgical treatment of open bite and, is especially helpful in uprighting the mandibular dental arch.

  14. Bug bites and stings: When to see a dermatologist

    Medline Plus

    Full Text Available ... Biting flies Mites Bees, wasps and hornets Spiders Ticks Fire ants Most bug bites and stings can ... red, donut-shaped rash that develops after a tick bite: This could be a sign of Lyme ...

  15. Pacifier-sucking habit duration and frequency on occlusal and myofunctional alterations in preschool children

    Directory of Open Access Journals (Sweden)

    Valdeane Simone Cenci NIHI

    2015-01-01

    Full Text Available The objective of this study was to evaluate the association of pacifier-sucking habit with occlusal and oral myofunctional alterations in preschool children. Eighty-four 2- to 5-year-old children participated in the study. Data on duration and frequency of pacifier use were collected from parents or guardians. Occlusal and oral myofunctional characteristics were examined by a dentist and a speech therapist, respectively. Chi-square tests and Poisson regression were used to analyze the data. The occlusal characteristics that were significantly associated with a pacifier-sucking habit were anterior open bite, altered canine relation, posterior crossbite, increased overjet, and malocclusion. The oral myofunctional characteristics that were significantly associated with a pacifier-sucking habit were resting lip position, resting tongue position, shape of the hard palate, and swallowing pattern. The strongest associations were for anterior open bite (prevalence ratio [PR] = 11.33, malocclusion (PR = 2.33, altered shape of the hard palate (PR = 1.29, and altered swallowing pattern (PR = 1.27. Both duration and frequency of pacifier-sucking habit were associated with occlusal and oral myofunctional alterations. These results emphasize the need for pediatric dentists to advise parents and caregivers about the risks of prolonged pacifier use and refer children to professionals for multidisciplinary assistance to minimize these risks whenever necessary.

  16. Animal Bites Epidemiology in Shahroud City

    Directory of Open Access Journals (Sweden)

    Mohammad Amiri

    Full Text Available Introduction: Rabies is an infectious central nervous system disease that infects all mammals and man. This study aimed at investigating the epidemiology of animal bites in Shahroud. Methods: In this deh1ive study all the data related to animal bite cases in shahroud in 2008-2009 were collected based on the data registration notebooks. Results: A total of 588 cases of animal bite were reported in 2008-2009 the majority of whom (82.1% were male. Of this total 35.7% were urban and 64.3% were rural. Just 2 of the cases were foreigners. The incidence rate of animal bite in the city was 159 (27% compared to 429 cases (73% in villages. Dogs and cats accounted for about 79.1% and 12.6% of the cases respectively. 12 cases were also wolf fox and Reynard bites. All cases have completed vaccination. In 82.3% of animal bites the biter was alive after 10 days and in 2% biters were dead and in 15.6% the biter reported invisible after 10 days. The incidence rate of animal bites in Shahroud was 246 in one hundred thousand. Conclusions: Animal bites are one of the most important problems of public health. Educational activities along with the promotion of out- organizing cooperation can play a significant role in controlling this problem

  17. Talking to Patients about Preventing Tick Bites

    Centers for Disease Control (CDC) Podcasts

    2012-02-14

    This podcast will help health care providers identify patients who are at increased risk of getting tick bites and provide these patients with tick bite prevention and removal tips.  Created: 2/14/2012 by National Center for Emerging and Zoonotic Infectious Diseases (NCEZID).   Date Released: 2/14/2012.

  18. Tail-biting: a new perspective.

    Science.gov (United States)

    Taylor, Nina R; Main, David C J; Mendl, Mike; Edwards, Sandra A

    2010-11-01

    Tail-biting data from different studies are difficult to compare because a range of definitions of tail-biting behaviour and tail-biting lesions are used. Although records from abattoirs provide a large database, their usefulness is restricted as tail-biting is under-recorded and environmental and husbandry factors associated with the behaviour are unlikely to be known. Both farm and abattoir data provide no information on the number of pigs biting, only those bitten. Studying individual animals that tail-bite should give a better understanding of the pig's motivation to tail-bite and which of the components of its environment should be adjusted to improve welfare. This review examines the existing literature on tail-biting in pigs but considered from a new perspective using three different descriptive behavioural types, namely, 'two-stage', 'sudden-forceful' and 'obsessive', each of which may have different motivational bases. The article also considers the different environmental and husbandry factors which may affect each type of behaviour and discusses why this is such a complicated field and why it is often difficult to draw conclusions from available research. PMID:19804997

  19. Prevention of crib-biting: a review.

    Science.gov (United States)

    McGreevy, P D; Nicol, C J

    1998-11-01

    Crib-biting is a common oral stereotype. Because of perceived deleterious effects on the health and appearance of subjects the prevention of crib-biting is regularly attempted. The resourcefulness of horses in satisfying their motivation to perform this behaviour often frustrates owners' efforts at prevention. This paper reviews the efficacy and observable consequences of attempting to prevent crib-biting by a variety of methods. These include attempts to prevent the grasping of objects, to interfere with air-engulfing and to introduce punishment for grasping and neck-flexion. Other approaches include the use of surgery, acupuncture, pharmaceuticals, operant feeding and environmental enrichment. A remedy that is effective for every crib-biter remains elusive. We conclude that, rather than concentrating on remedial prevention, further research should be directed at establishing why horses crib-bite and how the emergence of crib-biting can be avoided. PMID:10485002

  20. Effect of orthognathic surgery on the temporomandibular joint in patients with anterior open bite.

    Science.gov (United States)

    Aghabeigi, B; Hiranaka, D; Keith, D A; Kelly, J P; Crean, S J

    2001-01-01

    This study examined the prevalence of temporomandibular joint (TMJ) signs and symptoms in patients with anterior open bite. The influence of orthognathic surgery on the TMJ in these patients and the interaction of occlusal and psychologic variables on the presence and/or persistence of pain was studied. A retrospective survey of 83 patients with an anterior open bite who underwent orthognathic surgery was carried out. Records were examined for the prevalence of abnormal TMJ signs and symptoms, including pain. A survey was mailed to these patients that consisted of: (1) the TMJ Scale, (2) the Symptom Checklist 90 (SCL90), (3) the Spielberger State-Trait Anxiety Inventory (STAI), and (4) a visual analog scale on which patients indicated their degree of satisfaction with the procedure. Thirty-seven (42%) patients responded to the survey, and 13 (15%) also attended a clinical and radiographic examination. Multiple regression analysis was used for statistical analysis of the factors contributing to the presence and/or persistence of pain. In the preoperative group, the prevalence of pain was 32%, dysfunction 40%, and limitation of opening 7%. Age and gender were significantly associated with the presence of pain. The overall prevalence of abnormal TMJ signs and symptoms was not significantly different after orthognathic surgery. An abnormal psychologic profile was the most significant factor associated with the presence and/or persistence of pain. It is concluded that that the prevalence of temporomandibular disorders in anterior open bite patients increases with age, is significantly higher in females, and is not influenced by other occlusal variables. Furthermore, orthognathic surgery does not significantly influence temporomandibular disorders in patients with anterior open bite. Female patients, particularly those with an abnormal psychologic profile, are at a higher risk of persistent postoperative TMJ pain. PMID:11482294

  1. Biting

    Science.gov (United States)

    ... to a more positive activity, like dancing to music, coloring, or playing a game. Punishment is usually ... a smaller setting. Find alternatives. As your child's language skills develop, you can help him or her ...

  2. Bite force and state of dentition.

    Science.gov (United States)

    Helkimo, E; Carlsson, G E; Helkimo, M

    1977-01-01

    The maximal bite force and the strength of the finger-thumb grip of 125 Skolt Lapps, aged 15 to 65, was measured with a specially devised apparatus. The bite force was measured with the biting fork placed between the first molars and between the incisors, respectively. The finger-thumb grip was measured by letting the subject press the prongs of the fork between the thumb and forefinger of each hand as hard as possible. The range of inter-individual variation of the maximal bite force and finger-thumb grip was great. The mean values were higher for the males than for the females. In the males the maximal bite force thus measured in the molar region was 39 kg (382 N) and 18 kg (176 N) in the incisor region. The corresponding values for the females were 22 kg (216 N) and 11 kg (108 N). The finger-thumb grip strength for males was, on the average, 10 kg (98 N); that of the females, 7 KG (69 N). The average difference in bite force between the men and the women was larger in the group with natural teeth than in the one with complete dentures. The values found for the bite force decreased with increasing age, especially for the females. Most of this reduction with increasing age was probably due to the age-dependent deterioration of the dentition. In both sexes the bite force was notably smaller among the denture wearers than among the dentate persons. The number of natural teeth varied closely with the bite force, i.e. the greater number of natural teeth the greater the bite force.

  3. Severe Anterior Open Bite during Mixed Dentition Treated with Palatal Spurs.

    Science.gov (United States)

    Nascimento, Mauro Henrique Andrade; de Araújo, Telma Martins; Machado, Andre Wilson

    2016-01-01

    Deleterious oral habits, such as non-nutritive sucking or tongue thrusting, if not intercepted at an early stage can cause complex malocclusions. This manuscript describes a clinical case report of a successful interception of a severe anterior dental open bite caused by thumb sucking and tongue thrusting habits. The case involved a six-year-old female patient treated with the use of palatal spurs and maxillary removable crib followed by monitoring the development of dental occlusion. At the end of the interceptive phase acceptable results were achieved, showing the efficacy of the treatment undertaken as well the importance of an early intervention to remove harmful oral habits.

  4. An American Board of Orthodontics case report. Treatment of an open bite malocclusion.

    Science.gov (United States)

    Efstratiadis, S S

    1990-08-01

    The patient had a Class I (Angle) malocclusion characterized by an anterior open bite, bimaxillary dental protrusion, posterior and anterior crossbites, and mandibular midline deviation. A nonextraction treatment was followed for this patient. A Begg appliance (0.020 inch) and a posterior high-pull headgear were used. The prognosis was good because of the rather favorable skeletal pattern of the patient. The active treatment lasted 12 months. The patient was retained with a positioner. The occlusion was stable at 2 years posttreatment.

  5. Correction of transverse maxillary deficiency and anterior open bite in an adult Class III skeletal patient

    Directory of Open Access Journals (Sweden)

    Prerna Hoogan Teja

    2016-01-01

    Full Text Available Transverse maxillary deficiency may be associated with sagittal or vertical problems of the maxilla or mandible. It may contribute to unilateral or bilateral posterior crossbite, anterior dental crowding, and unesthetic black buccal corridors on smiling. An adequate transverse dimension is important for stable and proper functional occlusion. Surgically, assisted rapid palatal expansion has been the treatment of choice to resolve posterior crossbite in skeletally mature patients. The following case report presents an adult Class III skeletal patient with an anterior open bite and bilateral posterior crossbite which was treated by surgically assisted rapid maxillary expansion with satisfactory outcomes.

  6. Prospective medical evaluation of 7 dogs presented with fly biting

    OpenAIRE

    Frank, Diane; Bélanger, Marie C.; Bécuwe-Bonnet, Véronique; Parent, Joane

    2012-01-01

    Fly biting describes a syndrome in which dogs appear to be watching something and then snapping at it. Medical work-up of fly biting in dogs has never been reported. The aims of this case series were to characterize fly biting and perform a complete medical evaluation of dogs displaying fly biting.

  7. Factors identifying pigs predisposed to tail biting

    OpenAIRE

    Beattie, V. E.; Breuer, K.; O Connell, N. E.; Sneddon, I. A.; Mercer, J. T.; Rance, K. A.; Sutcliffe, M. E. M.; Edwards, S A

    2005-01-01

    Approximately 5% of pigs slaughtered in the UK have been tail-bitten, leading to welfare and production issues. Tail biting is sporadic and not all pigs tail bite. The aim of this study was to identify factors that are common in pigs that perform tail-biting behaviour, and that might be used in a predictive way to identify such animals. The behaviour of 159 pigs was observed in the post-weaning period. Pigs were weaned at 4 weeks of age. In the week prior to weaning and at 6 weeks of age each...

  8. 全口义齿患者咬合接触特征初探%A preliminary study of the occlusal ;contact of complete denture

    Institute of Scientific and Technical Information of China (English)

    贺淑贞; 王丁

    2014-01-01

    目的:探讨全口义齿患者的咬合接触特征。方法选取门诊无牙合患者20人,常规制作全口义齿,调合至满意后,使用T-scanIII咬合分析仪记录受试者咬合接触时间、后牙咬合接触点、合力分布平衡度,与22名正常合人群做比较。结果20例患者的咬合接触时间为0.858±0.619,明显大于正常合人群(P0.05)。结论全口义齿患者的功能咬合接触特征与正常合的T-Scan表现有一定差异,有其独有特征。%Objective To evaluate the occlusal contact characteristics of complete denture.Methods Twenty edentulous patients were involved in this study and were restored with complete dentures.After they were satisfied with the dentures,the patients occlusions were analyzed with T-ScanIII system.The occlusion time ,posterior occlusal contact point and bite distribution degree of balance were recorded and compared with the occlusion of twerty-two normal person. Results The occlusion time of twenty evaluate patients is 0.858±0.619,more than the group ofnormal occlusion(P<0.05). posterior occlusal contact point21.11±2.892, bite distribution degree of balance, 2.90±2.35,they both are close to the group of normal occlusion. Conclusions In the ovvlusion of complete denture,there are differences between edentulous patients and norma occlusion person.

  9. A bite in the playroom: Managing human bites in child care settings

    OpenAIRE

    2008-01-01

    Young children bite each other frequently in child care settings, but the bites rarely break the skin and the risk of infection is minimal. Nevertheless, parents and child care personnel may be concerned about infection, especially with blood-borne viruses. The present document reviews the literature concerning infections following bites in child care settings, and provides recommendations for prevention and management of such incidents.

  10. Evaluation of occlusal factors in patients with temporomandibular joint disorder

    Directory of Open Access Journals (Sweden)

    Max Dória Costa

    2012-12-01

    Full Text Available OBJECTIVE: The aim of this study was to determine the prevalence and the relation between the main occlusal factors and the temporomandibular disorder (TMD. METHODS: We analyzed 100 patients (50 diagnosed with TMD and 50 asymptomatic volunteers, control group through a questionnaire that classified TMD as absent, mild, moderate and severe. Then, an evaluation was made of intraoral occlusal factors: Absence of posterior teeth, wear facets, overjet, overbite, open bite, posterior crossbite, sagittal relationship (Class I, II and III, centric relation discrepancy for maximum intercuspation, anterior guidance and balancing occlusal interference. The c² examined the association between TMD and considered occlusal variables. RESULTS: The prevalence of studied occlusal factors was higher in patients with moderate and severe TMD. Statistically significant results were found on: Absence of five or more posterior teeth, overbite and overjet greater than 5 mm, edge-to-edge bite, posterior crossbite, Class II and III, the absence of effective anterior guide and balancing side interferences. CONCLUSIONS: Indeed, it is concluded that there is a relationship between TMD and occlusal factors, however it can not be told to what extent these factors are predisposing, precipitating or perpetuating the disease. Therefore, despite its multifactorial etiology, one can not neglect the occlusal analysis of these patients.OBJETIVO: o presente estudo teve como objetivo verificar a prevalência e relação dos principais fatores oclusais com a disfunção temporomandibular. MÉTODOS: foram analisados 100 pacientes (50 com diagnóstico de DTM e 50 voluntários assintomáticos, grupo controle através de um questionário para classificação do grau de DTM, em ausente, leve, moderada e severa. Em seguida, foi realizada uma avaliação intrabucal dos fatores oclusais ausência de dentes posteriores, facetas de desgaste, overjet, overbite, mordida aberta anterior, mordida

  11. First Pediatric Case of Tularemia after a Coyote Bite

    OpenAIRE

    Chomel, Bruno B.; Jane A. Morton; Kasten, Rickie W.; Chao-chin Chang

    2016-01-01

    Bite-transmitted tularemia is a rare event in humans and most of the cases have been associated with cat bites. We report the first pediatric case of tularemia caused by a coyote (Canis latrans) bite. Coyotes can be healthy carriers of Francisella tularensis and transmit this infectious agent through a bite. Pediatricians should be aware of this risk after a carnivore bite and implement appropriate antibiotic therapy, as amoxicillin/clavulanate potassium (Augmentin) may have prolonged the typ...

  12. [Bites of venomous snakes in Switzerland].

    Science.gov (United States)

    Plate, Andreas; Kupferschmidt, Hugo; Schneemann, Markus

    2016-06-01

    Although snake bites are rare in Europe, there are a constant number of snake bites in Switzerland. There are two domestic venomous snakes in Switzerland: the aspic viper (Vipera aspis) and the common European adder (Vipera berus). Bites from venomous snakes are caused either by one of the two domestic venomous snakes or by an exotic venomous snake kept in a terrarium. Snake- bites can cause both a local and/or a systemic envenoming. Potentially fatal systemic complications are related to disturbances of the hemostatic- and cardiovascular system as well as the central or peripheral nervous system. Beside a symptomatic therapy the administration of antivenom is the only causal therapy to neutralize the venomous toxins.

  13. How to Stop Biting Your Nails

    Medline Plus

    Full Text Available ... information Housing & travel Education FAQs Mobile app Exhibit hall 2017 Annual Meeting Derm Exam Prep Course Essentials ... and can continue through adulthood, and the side effects can be more than cosmetic. Repeated nail biting ...

  14. How to Stop Biting Your Nails

    Medline Plus

    Full Text Available ... like biting your nails, try playing with a stress ball or silly putty instead. This will help ... of hangnails, or other triggers, such as boredom, stress, or anxiety. By figuring out what causes you ...

  15. How to Stop Biting Your Nails

    Medline Plus

    Full Text Available ... care & guidelines Clinical guidelines Appropriate use criteria Patient safety Choosing Wisely Quality measures Outcomes in Dermatology Pilot ... Artificial nails Healthy nails Child nail care Manicure safety Nail biting Younger skin Kids’ zone Video library ...

  16. How to Stop Biting Your Nails

    Medline Plus

    Full Text Available ... Common coding issues ICD-10 Audits, fraud, and abuse Test your knowledge Derm Coding Consult AAD coding ... Injured skin Nail care Artificial nails Healthy nails Child nail care Manicure safety Nail biting Younger skin ...

  17. Rat Bite Fever Resembling Rheumatoid Arthritis

    Directory of Open Access Journals (Sweden)

    Ripa Akter

    2016-01-01

    Full Text Available Rat bite fever is rare in Western countries. It can be very difficult to diagnose as blood cultures are typically negative and a history of rodent exposure is often missed. Unless a high index of suspicion is maintained, the associated polyarthritis can be mistaken for rheumatoid arthritis. We report a case of culture-positive rat bite fever in a 46-year-old female presenting with fever and polyarthritis. The clinical presentation mimicked rheumatoid arthritis. Infection was complicated by discitis, a rare manifestation. We discuss the diagnosis and management of this rare zoonotic infection. We also review nine reported cases of rat bite fever, all of which had an initial presumptive diagnosis of a rheumatological disorder. Rat bite fever is a potentially curable infection but can have a lethal course if left untreated.

  18. Beware of Bug Bites and Stings

    Science.gov (United States)

    ... relief. Oral OTC drugs, such as ibuprofen and acetaminophen, can provide relief of pain from bites and ... sneezing, wheezing, hives, nausea, vomiting, diarrhea, sudden anxiety, dizziness, difficulty breathing, chest tightness, and itching or swelling ...

  19. How to Stop Biting Your Nails

    Medline Plus

    Full Text Available ... Structure Program SPOTme® Skin Cancer Screening Program Volunteer Recognition Program AAD and AADA Historian Leadership Institute Programs ... your fingers and from your nails to your face and mouth. To help you stop biting your ...

  20. Philodryas patagoniensis bite and local envenoming.

    Science.gov (United States)

    Nishioka, S A; Silveira, P V

    1994-01-01

    A 5-year-old boy bitten by a specimen of Philodryas patagoniensis, a colubrid snake currently classified as nonvenomous, developed signs of local envenoming characterized by swelling and warmth on the bitten limb. This is the first time that local envenoming following Philodryas patagoniensis bite is recognized. Based on the clinical findings and misidentification of the snake, the patient was treated as a victim of Bothrops bite, having received unnecessarily the specific antivenom. Educational efforts to make doctors and health workers capable to identify correctly venomous snakes are necessary, to avoid inappropriate indication of antivenom and decrease the risk of its potentially harmful untoward effects. Examination of the bite site can be useful to the differential diagnosis between pit viper and colubrid bites. PMID:7855493

  1. [Bites of venomous snakes in Switzerland].

    Science.gov (United States)

    Plate, Andreas; Kupferschmidt, Hugo; Schneemann, Markus

    2016-06-01

    Although snake bites are rare in Europe, there are a constant number of snake bites in Switzerland. There are two domestic venomous snakes in Switzerland: the aspic viper (Vipera aspis) and the common European adder (Vipera berus). Bites from venomous snakes are caused either by one of the two domestic venomous snakes or by an exotic venomous snake kept in a terrarium. Snake- bites can cause both a local and/or a systemic envenoming. Potentially fatal systemic complications are related to disturbances of the hemostatic- and cardiovascular system as well as the central or peripheral nervous system. Beside a symptomatic therapy the administration of antivenom is the only causal therapy to neutralize the venomous toxins. PMID:27269771

  2. How to Stop Biting Your Nails

    Medline Plus

    Full Text Available ... hair, and nail care Nail care Nail biting public SPOT Skin Cancer™ Diseases and treatments Skin, hair, ... Member resources Practice Tools Education Meetings & events Advocacy Public & patients AAD Resources For: Dermatologists in the US ...

  3. How to Stop Biting Your Nails

    Medline Plus

    Full Text Available ... Common coding issues ICD-10 Audits, fraud, and abuse Test your knowledge Derm Coding Consult AAD coding ... from biting their nails. Get regular manicures: Spending money to keep your nails looking attractive may make ...

  4. Animal Bites - Multiple Languages: MedlinePlus

    Science.gov (United States)

    ... Supplements Videos & Tools You Are Here: Home → Multiple Languages → All Health Topics → Animal Bites URL of this page: https://medlineplus.gov/languages/animalbites.html Other topics A-Z A B ...

  5. Rat Bite Fever Resembling Rheumatoid Arthritis.

    Science.gov (United States)

    Akter, Ripa; Boland, Paul; Daley, Peter; Rahman, Proton; Al Ghanim, Nayef

    2016-01-01

    Rat bite fever is rare in Western countries. It can be very difficult to diagnose as blood cultures are typically negative and a history of rodent exposure is often missed. Unless a high index of suspicion is maintained, the associated polyarthritis can be mistaken for rheumatoid arthritis. We report a case of culture-positive rat bite fever in a 46-year-old female presenting with fever and polyarthritis. The clinical presentation mimicked rheumatoid arthritis. Infection was complicated by discitis, a rare manifestation. We discuss the diagnosis and management of this rare zoonotic infection. We also review nine reported cases of rat bite fever, all of which had an initial presumptive diagnosis of a rheumatological disorder. Rat bite fever is a potentially curable infection but can have a lethal course if left untreated. PMID:27366177

  6. Tarantula bite leads to death and gangrene

    Directory of Open Access Journals (Sweden)

    Banerjee Kalyan

    1997-01-01

    Full Text Available Chilobrachys hardwikii-giant black hairy spider bite produced two deaths, one case of gangrene of the foot and urticarial rashes in another person in a remote village of Churulia 30 km from Asansol.

  7. Guiding occlusal development with functional appliances.

    Science.gov (United States)

    Nielsen, I L

    1996-10-01

    Functional appliances have been used in orthodontics since their introduction by Pierre Robin almost one hundred years ago, however, our understanding of how they bring about orthodontic correction is still limited. This article is a brief overview of their history, mode of action, advantages and disadvantages, and includes the results of a study of attempts to control and minimise their side-effects using a recent development in functional appliances: the 'Teuscher Appliance'. This appliance combines a high-pull headgear with the activator, and is designed to reduce the often reported side-effects of functional appliances. The skeletal and dentoalveolar effects of treatment with the Teuscher Appliance on 40 consecutively-treated patients are reported and illustrated with four individual case reports. The results showed that the skeletal effect on the maxilla was a retardation of the normal forward and downward growth in 80 per cent of the cases, and that mandibular growth in 70 per cent of cases was forward. In patients whose mandibular growth was primarily in a vertical direction, such growth could be ascribed mainly to posterior rotation of the maxilla and/or the fact that the acrylic covering the lower posterior teeth to correct a deep bite was removed, promoting the eruption of these teeth and increasing the anterior vertical development. The dentoalveolar changes were characterised by retroclination of the maxillary incisors in 90 per cent of the patients, and were due to insufficient torque control by the built-in torque springs, which need further development. The mandibular incisors were well controlled by capping. The statistical analysis showed an inverse correlation between the initial incisor inclination and the change during treatment. This suggests that proclination of the lower incisors, as previously reported, is not a contra-indication to functional appliance treatment, provided the appliance is correctly designed. Overall, this study showed

  8. Occlusal force characteristics of masseteric muscles after intramuscular injection of botulinum toxin A(BTX - A)for treatment of temporomandibular disorder.

    Science.gov (United States)

    Zhang, Long-Dan; Liu, Qi; Zou, De-Rong; Yu, Lv-Feng

    2016-09-01

    Our aim was to evaluate the occlusal force and therapeutic efficacy of the masseteric muscles after intramuscular injection of botulinum toxin A (BTX-A) for the treatment of patients with concurrent temporomandibular disorders (TMD) and bruxism. Thirty patients with TMD associated with bruxism were randomised into three groups (n=10 in each group), and treated by bilateral intramuscular injection of BTX-A into the masseter, placebo, or control. We used an occlusal force analysis system to collect several measures of occlusal force such as duration of biting and closing, the maximum occlusal force, and the distribution of occlusal force. The occlusal force in the intercuspid position was reduced in all three groups. There was a significant difference between the BTX-A and placebo groups (F(df=1)=8.08, p=0.01) but not between the control group and the other two(F(df=1)=4.34, p=0.047). The duration of occlusion was significantly increased in the BTX-A group after 3 months' treatment (t=4.07, p=0.003). The asymmetrical distribution of occlusal force was reduced in all three groups, but not significantly so (Levene's test F(df=2)=0.25, p=0.78,ANOVA F(df=2)=0.50, p=0.61). Treatment of TMD with BTX-A is effective in reducing the occlusal force, but psychological intervention plays an important part in treatment. PMID:27138229

  9. Model surgery technique for Le Fort I osteotomy--alteration in occlusal plane associated with upward transposition of posterior maxilla.

    Science.gov (United States)

    Yosano, Akira; Yamamoto, Masae; Shouno, Takahiro; Shiiki, Sayaka; Hamase, Maki; Kasahara, Kiyohiro; Takaki, Takashi; Takano, Nobuo; Uchiyama, Takeshi; Shibahara, Takahiko

    2005-08-01

    It is difficult to translate analytical values into accurate model surgery by traditional methods, especially when moving the posterior maxilla. This is because cephalometric radiographic analysis generated information on movement of the posterior nasal spine (PNS) can not be recreated in model surgery. Therefore, we propose a method that accurately reflects such analysis and simulation of movement using Quick Ceph 2000 (Orthodontic Processing Corporation, USA). This will allow the enrichment of model surgery prior to actual surgery in cases where upward movement of the posterior maxilla is involved. All patients who participated in this study had skeletal mandibular prognathism characterized by a small occlusal plane angle in respect to the S-N plane. Cephalometric radiographs were taken and analyzed with the Quick Ceph 2000. Pre- and post-surgical evaluations were performed using Sassouni arc analysis and Ricketts analysis. Prior to transposition, we then prepared an anterior occlusal bite record on a model mounted on an articulator. This bite was then used as a reference when the molar parts were to be transposed upwards. The use of a occlusal bite permitted an accurate translation of the preoperative computer simulation into model surgery, thus facilitating favorable surgical results.

  10. Endograft Limb Occlusion in EVAR

    DEFF Research Database (Denmark)

    Taudorf, M; Jensen, L P; Vogt, K C;

    2014-01-01

    occlusions were recorded and compared with a defined control group. Three different indices were used to describe the tortuosity of the iliac vessels based on preoperative CTA: pelvic artery index of tortuosity (PAI), common iliac artery index of tortuosity (CAI), and a visual description of vessel......, subsequently, duplex ultrasound imaging was performed. Patients with limb occlusions were identified. For each index patient, two controls were obtained, one immediately preceding and one following the index patient in the consecutive cohort of EVAR patients. METHODS: Demographics and CTA data on limb graft......% at 3 years. Logistic regression showed that iliac artery tortuosity (DIS) (p = .001) and body mass index (p = .007) had a significant impact on graft patency. CONCLUSION: A tortuous vessel on the preoperative CTA is associated with an increased risk of limb occlusion after EVAR. Adjunctive stenting...

  11. The effects of food viscosity on bite size, bite effort and food intake

    NARCIS (Netherlands)

    Wijk, de R.A.; Zijlstra, N.; Mars, M.; Graaf, de C.; Prinz, J.F.

    2008-01-01

    Two studies investigated the effect of a food's viscosity on bite size, bite effort and food intake using a standardized protocol in which subjects sipped through a straw every 20 s for a period of 15 min from one of two products, a chocolate-flavored dairy drink and a chocolate-flavored dairy semi-

  12. Breastfeeding and non-nutritive sucking patterns related to the prevalence of anterior open bite in primary dentition

    Directory of Open Access Journals (Sweden)

    Camila Campos Romero

    2011-04-01

    Full Text Available OBJECTIVE: Nutritional, immunological and psychological benefts of exclusive breastfeeding for the frst 6 months of life are unequivocally recognized. However, mothers should also be aware of the importance of breastfeeding for promoting adequate oral development. This study evaluated the association between breastfeeding and non-nutritive sucking patterns and the prevalence of anterior open bite in primary dentition. MATERIAL AND METHODS: Infant feeding and non-nutritive sucking were investigated in a 3-6 year-old sample of 1,377 children, from São Paulo city, Brazil. Children were grouped according to breastfeeding duration: G1 - non-breastfed, G2 - shorter than 6 months, G3 - interruption between 6 and 12 months, and G4 - longer than 12 months. Three calibrated dentists performed clinical examinations and classifed overbite into 3 categories: normal, anterior open bite and deep bite. Chi-square tests (p<0.05 with odds ratio (OR calculation were used for intergroup comparisons. The impact of breastfeeding and non-nutritive sucking on the prevalence of anterior open bite was analyzed using binary logistic regression. RESULTS: The prevalence estimates of anterior open bite were: 31.9% (G1, 26.1% (G2, 22.1% (G3, and 6.2% (G4. G1 would have signifcantly more chances of having anterior open bite compared with G4; in the total sample (OR=7.1 and in the subgroup without history of non-nutritive sucking (OR=9.3. Prolonging breastfeeding for 12 months was associated with a 3.7 times lower chance of having anterior open bite. In each year of persistence with non-nutritive sucking habits, the chance of developing this malocclusion increased in 2.38 times. CONCLUSIONS: Breastfeeding and non-nutritive sucking durations demonstrated opposite effects on the prediction of anterior open bite. Non-breastfed children presented signifcantly greater chances of having anterior open bite compared with those who were breastfed for periods longer than 12 months

  13. Bug bites and stings: When to see a dermatologist

    Medline Plus

    Full Text Available ... bug bite or sting could turn into something serious – particularly if you have been bitten or stung ... bite: This could be a sign of Lyme disease, which should be treated with antibiotics. A fever ...

  14. Taking the Bite out of Bruxism (For Kids)

    Science.gov (United States)

    ... Dictionary of Medical Words En Español What Other Kids Are Reading Movie: Digestive System Winter Sports: Sledding, ... Taking the Bite Out of Bruxism KidsHealth > For Kids > Taking the Bite Out of Bruxism Print A ...

  15. Zika's Delivery Via Mosquito Bite May Boost Its Effect

    Science.gov (United States)

    ... page: https://medlineplus.gov/news/fullstory_159484.html Zika's Delivery Via Mosquito Bite May Boost Its Effect ... The inflammation caused by a mosquito bite helps Zika and other viruses spread through the body more ...

  16. Bite Angle Effects in Hydroformylation Catalysis

    Institute of Scientific and Technical Information of China (English)

    van LEEUWEN

    2001-01-01

    Recent advances in rhodium catalyzed hydroformylation using xanthene-based ligands will be reviewed.The calculated natural bite angles of the ligands discussed are in the range 100-123℃ While the general trend is clear-higher 1:b ratios at wider angles, small changes in the bite angle do not exhibit a regular effect on the selectivity of the reaction.The same is true for the rate of CO dissociation;the larger the rate of the CO dissociation, the larger the rate of hydroformylation, but for small changes the effects do not comply with this rule.

  17. MANAGEMENT OF TEMPORO MANDIBULAR DISORDER (TMD IN PATIENT WITH LOW VERTICAL DIMENSION AND DEEP ANTERIOR BITE

    Directory of Open Access Journals (Sweden)

    Henni Koesmaningati

    2015-06-01

    Full Text Available The cases of TMD are complex and multifactorial, therefore the management should be done by several disciplines. In this report, a 27-year-old man came to the teaching hospital of the University of Indonesia Faculty of Dentistry’s Prosthodontic Department complaining about clicking sound and pain around his right joint. He received orthodontic treatment 9 years ago with removable appliance at a private practice and had 4 premolar extractions. The patient’s face looked asymmetric, with a low vertical dimension, a Class II occlusion, and an anterior deep bite. Besides that, he clenched his teeth during emotional stress. Lateral transcranial photo showed that the position of the left condyle was relatively normal or slightly anterior, and the right condyle was in the superoposterior position in the fossa with an abnormal shape. To solve this problem, the patient was referred to the Orthodontic Department to get a correct vertical dimension and normal anterior overbite. After 6 years, the patient was again referred to the Prosthodontic Department, but the result was not successful. In order to get the right vertical dimension, an occlusal splint was fabricated to achieve a comfort jaw relation. In this position, the overbite was 2 mm, but the space between the upper and lower posterior teeth was 5 mm. In this situation, full veneer crowns were not impossible to fabricate. Finally, to maintain this comfort position, the patient was suggested to wear the occlusal splint and come regularly for control every 6 months.

  18. Cerebral infarction: an unusual manifestation of viper snake bite

    OpenAIRE

    Jyotirmoy Pal; Sumantro Mondal; Debanjali Sinha; Tony Ete; Atanu Chakraborty; Arijit Nag; Gouranga Sarkar; Bikram Saha

    2014-01-01

    Snake envenomation causes significant mortality and morbidity. Viper bite usually present with local cellulites, renal failure and bleeding disorders. Thrombotic manifestation of snake bite is rarely reported and early administration of Anti-Snake Venom Serum (ASV) also reduces the risk of thrombotic complications. Cerebral infarction in case of viper bite may be due to hypotension, hypercoagulability or direct action of venom on vessel wall. We report a rare case of viper bite, presented wit...

  19. Bacteremia with Bacteroides pyogenes after a cat bite

    DEFF Research Database (Denmark)

    Madsen, Ida Ringsborg; Justesen, Ulrik Stenz

    2011-01-01

    Animal bite wounds are often infected with bacteria from the animal's oral flora. We report what we believe to be the first case of bacteremia with Bacteroides pyogenes resulting from an infected cat bite.......Animal bite wounds are often infected with bacteria from the animal's oral flora. We report what we believe to be the first case of bacteremia with Bacteroides pyogenes resulting from an infected cat bite....

  20. Vine snake (Thelotornis capensis bite in a dog : clinical communication

    Directory of Open Access Journals (Sweden)

    J. Otto

    2003-06-01

    Full Text Available A vine snake bite in a dog is reported. There was continued minor bleeding from the assumed nose bite site for 4 days. Currently manufactured snakebite antivenom is not effective against vine snake bites and treatment is supportive.

  1. Tracking facial features with occlusions

    Institute of Scientific and Technical Information of China (English)

    MARKIN Evgeny; PRAKASH Edmond C.

    2006-01-01

    Facial expression recognition consists of determining what kind of emotional content is presented in a human face.The problem presents a complex area for exploration, since it encompasses face acquisition, facial feature tracking, facial expression classification. Facial feature tracking is of the most interest. Active Appearance Model (AAM) enables accurate tracking of facial features in real-time, but lacks occlusions and self-occlusions. In this paper we propose a solution to improve the accuracy of fitting technique. The idea is to include occluded images into AAM training data. We demonstrate the results by running ex periments using gradient descent algorithm for fitting the AAM. Our experiments show that using fitting algorithm with occluded training data improves the fitting quality of the algorithm.

  2. Cannabis, Collaterals, and Coronary Occlusion

    Directory of Open Access Journals (Sweden)

    Kalpa De Silva

    2011-01-01

    Full Text Available A 51-year-old gentleman, who regularly smoked cannabis, presented with chest pain and diaphoresis. He was haemodynamically stable. ECG showed ST depression, inferiorly, and 1 mm ST elevation in lead aVR. Emergent coronary angiography showed thrombotic occlusion of the left main coronary artery (LMCA, the dominant RCA provided Rentrop grade II collaterals to the LAD. The LMCA was successfully reopened by deployment of a bare-metal stent. Animal heart models suggest that endogenous cannibinoids may cause ischaemic preconditioning. This case suggests that the severity of ischaemia, and hence ECG changes and haemodynamic consequences following an acute occlusion of the LMCA, can be ameliorated by coronary collateralisation and possibly by preconditioning of the myocardium.

  3. Retinal vein occlusion: current treatment.

    Science.gov (United States)

    Lattanzio, Rosangela; Torres Gimeno, Ana; Battaglia Parodi, Maurizio; Bandello, Francesco

    2011-01-01

    Retinal vein occlusion (RVO) is a pathology noted for more than 150 years. Although a lot has been written on the matter, it is still a frequent condition with multifactorial etiopathogenesis with many unclear aspects. The RVO pathogenesis has varied systemic and local implications that make it difficult to elaborate treatment guidelines. The management of the patient with RVO is very complex and a multidisciplinary approach is required in order to identify and correct the associated risk factors. Laser therapy remains the gold standard in RVO, but only modest functional improvement has been shown in branch retinal occlusion forms. Multicenter studies of intravitreal drugs present them as an option to combine with laser. Anti-vascular endothelial growth factor, corticosteroids and sustained-release implants are the future weapons to stop disease progression and get a better visual outcome. Consequently, it is useful to clarify some aspects of the pathology that allow a better patient management. PMID:20938213

  4. Occlusal status among Yemeni children

    OpenAIRE

    Nabil M Al-Zubair; Ibrahim A Ghandour

    2014-01-01

    Objectives: The purpose of this study was to assess the occlusal status in schoolchildren in Yemen, and to compare the results with those of other studies. Materials and Methods: The sample for this epidemiological survey consisted of 3003 primary school students, half of whom were boys and the other half girls, aged 12 years. The subjects were randomly selected, and none had received previous orthodontic treatment. Variables examined included intra-arch irregularities and malalignment (crowd...

  5. How to Stop Biting Your Nails

    Medline Plus

    Full Text Available ... you’ve repeatedly tried to quit and the problem persists, consult a doctor. If you bite your nails and develop a skin or nail infection, consult a board-certified ... & patients AAD Resources For: Dermatologists in the US ...

  6. Non-biting Muscidae and control methods

    DEFF Research Database (Denmark)

    Thomas, G.; Jespersen, Jørgen B.

    1994-01-01

    Many non-biting muscids (filth flies) are characterised by the habit of visiting manure or rotting organic material to Seed and/or oviposit. As these flies also often have close associations with human beings, as well as human habitations and domestic animals, they are potentially both a nuisance...

  7. How to Stop Biting Your Nails

    Medline Plus

    Full Text Available ... break the habit. Try to stop biting one set of nails, such as your thumb nails, first. When that’s successful, eliminate your pinky nails, pointer nails, or even an entire hand. The goal is to get to the point where you ...

  8. How to Stop Biting Your Nails

    Medline Plus

    Full Text Available ... your mouth. Identify your triggers: These could be physical triggers, such as the presence of hangnails, or other triggers, such as boredom, stress, or anxiety. By figuring out what causes you to bite your nails, you can figure ...

  9. What's eating you? tick bite alopecia.

    Science.gov (United States)

    Sperling, Leonard C; Sutton, Elizabeth; Wilke, Marke S

    2016-08-01

    Tick bite alopecia is seldom reported in the literature. The condition usually presents as a solitary oval zone of alopecia with a central eschar. Histologic findings are not well described but generally indicate dense perifollicular lymphocytic inflammation. The mechanism for hair loss is poorly understood, but the prognosis for hair regrowth appears to be favorable. PMID:27622251

  10. Occlusal status among Yemeni children

    Directory of Open Access Journals (Sweden)

    Nabil M Al-Zubair

    2014-01-01

    Full Text Available Objectives: The purpose of this study was to assess the occlusal status in schoolchildren in Yemen, and to compare the results with those of other studies. Materials and Methods: The sample for this epidemiological survey consisted of 3003 primary school students, half of whom were boys and the other half girls, aged 12 years. The subjects were randomly selected, and none had received previous orthodontic treatment. Variables examined included intra-arch irregularities and malalignment (crowding and spacing in the incisal segments of the arch and midline diastema and discrepancies in occlusal contact relationship (maxillary overjet, mandibular overjet, anterior openbite and antero-posterior molar relation. Results: The results showed that about 26.1% of the subjects were still in the late mixed dentition stage and 73.9% presented with a dentition in the early permanent stage. Normal overjet was found in 55% of the sample. Crowding was observed in 31.4% of the subjects and midline diastema in 14.2%. Conclusion: Occlusal status among Yemeni children was characterized by a relatively high frequency of dental crowding, as well as a relatively high frequency of anterior mandibular overjet (Class III malocclusions.

  11. Biting behaviour and biting rhythm of potential Japanese encephalitis vectors in Assam.

    Science.gov (United States)

    Khan, S A; Narain, K; Dutta, P; Handique, R; Srivastava, V K; Mahanta, J

    1997-06-01

    Studies on biting behaviour and biting cycles of medically important mosquitoes were carried out in Madhupur village and Tarajan tea estate of upper Assam. Collections were made off human baits outdoors and indoors and off cattle bait outdoors from August 1991 to July 1992. Human bait collections were performed using the 'stationary direct bait' technique. A total of 9,072 adult host seeking female mosquitoes representing 26 species and 5 genera were collected off baits of which 36.9% were collected off human baits and the rest from cattle. All mosquitoes were primarily zoophilic, although significant numbers were collected biting man outdoors. Biting preferences of important Japanese encephalitis (JE) vectors for man and cattle were studied using outdoor man:outdoor cattle ratio (attraction ratio = AR). Culex quinquefasciatus was attracted towards human baits the most (AR = 8.1:1), followed by Cx. bitaeniorhynchus (AR = 1.6:1) and Mansonia annulifera (AR = 1.3.1). The hourly biting activity of important JE vectors throughout the night on two bait types was also studied using three point moving averages. Hierarchical agglomerative cluster analysis was used to compare and classify mosquitoes on the basis of their similarity in biting rhythms. PMID:9282509

  12. Bite marks on skin and clay: A comparative analysis

    Directory of Open Access Journals (Sweden)

    R.K. Gorea

    2014-12-01

    Full Text Available Bite marks are always unique because teeth are distinctive. Bite marks are often observed at the crime scene in sexual and in physical assault cases on the skin of the victims and sometimes on edible leftovers in burglary cases. This piece of evidence is often ignored, but if properly harvested and investigated, bite marks may prove useful in apprehending and successfully prosecuting the criminals. Due to the importance of bite marks, we conducted a progressive randomised experimental study conducted on volunteers. A total of 188 bite marks on clay were studied. Based on these findings, 93.34% of the volunteers could be identified from the bite marks on the clay. In addition, 201 impressions on skin were studied, and out of these cases, 41.01% of the same volunteers could be identified based on the bite mark impressions on the skin.

  13. Investigation of the Flow Structure on a Flat Plate Induced by Unsteady Plasma Actuation with DNS Methods

    Science.gov (United States)

    Yu, Jianyang; Chen, Fu; Liu, Huaping; Song, Yanping

    2015-12-01

    An investigation into the flow characteristic on a flat plate induced by an unsteady plasma was conducted with the methods of direct numerical simulations (DNS). A simplified model of dielectric barrier discharge (DBD) plasma was applied and its parameters were calibrated with the experimental results. In the simulations, effects of the actuation frequency on the flow were examined. The instantaneous flow parameters were also drawn to serve as a detailed study on the behavior when the plasma actuator was applied to the flow. The result shows that induced by the unsteady actuation, a series of vortex pairs which showed dipole formation and periodicity distribution were formed in the boundary layer. The production of these vortex pairs indicated a strong energy exchange between the main flow and the boundary layer. They moved downstream under the action of the free stream and decayed under the influence of the fluid viscosity. The distance of the neighboring vortices was found to be determined by the actuation frequency. Interaction of the neighboring vortices would be ignored when the actuation frequency was too small to make a difference. supported by the Foundation for Innovative Research Groups of National Natural Science Foundation of China (No. 51121004) and National Natural Science Foundation of China (No. 50976026)

  14. Evaluation of the effects of modified bonded rapid maxillary expansion on occlusal force distribution: A pilot study

    Science.gov (United States)

    Uzuner, Fatma Deniz; Odabasi, Hande; Acar, Secil; Tortop, Tuba; Darendeliler, Nilufer

    2016-01-01

    Objective: To evaluate the effects of modified bonded rapid maxillary expansion (RME) on occlusal force distribution. Materials and Methods: The sample included 12 patients (7 girls and 5 boys; mean age: 13.1 years) at the permanent dentition stage with bilateral posterior cross-bite. The patients were treated with a modified bonded RME appliance, activated twice a day. The study was terminated when the palatal cusps of the maxillary posterior teeth were occluding with the buccal cusps of the mandibular posterior teeth. The postretention period was 3 months. The T-Scan III device was used to analyze the percentages of occlusal force distribution, and records were taken at the pretreatment (T1), the postreatment (T2), and the postretention (T3) periods. Wilcoxon signed rank test was used for statistical analyses. Results: Incisors were most frequently without contact, followed by canines. The highest forces were seen in the second and first molar regions. A significant decrease was seen in total occlusal force during treatment (T1–T2); however, during retention, the force returned to its initial value, and no significant differences were found (T1–T3). No differences were found between right and left sides and in occlusal forces of the teeth in all time periods. Conclusion: The use of modified bonded RME decreases the total occlusal forces during the treatment period, but it does returns to its initial value after the postretention period. PMID:27011748

  15. Combined surface and volumetric occlusion shading

    KAUST Repository

    Schott, Matthias O.

    2012-02-01

    In this paper, a method for interactive direct volume rendering is proposed that computes ambient occlusion effects for visualizations that combine both volumetric and geometric primitives, specifically tube shaped geometric objects representing streamlines, magnetic field lines or DTI fiber tracts. The proposed algorithm extends the recently proposed Directional Occlusion Shading model to allow the rendering of those geometric shapes in combination with a context providing 3D volume, considering mutual occlusion between structures represented by a volume or geometry. © 2012 IEEE.

  16. Branch Retinal Vein Occlusion and Its Management

    Institute of Scientific and Technical Information of China (English)

    Desmond; Archer

    1992-01-01

    The natural course of Branch Retinal Vein Occlusion is determined by the site and completeness of the occlusion, the integrity of arterial perfusion to the affected sector and the efficiency of the developing collateral circulation. Most patients with tributary vein occlusion have some capillary fall out and microvascular incompetence in the distribution of the affected retina and vision is significantly compromised in over 50% of patients who have either chronic macular oedema or ischemia involving the...

  17. Occlusion: A Contemporary Overview and Recommendations.

    Science.gov (United States)

    Racich, Michael J

    2015-01-01

    Dental occlusal concepts have developed over time, essentially by trial and error. Most have stood the test of observation, and more recently science has verified some of the viewed occlusal successes. The purpose of this article is to examine and distill, in an evidence-based manner, the commonalities that allow practitioners of one occlusal philosophy or another to achieve consistent success. Medline and the Cochrane Collaboration were used to procure relevant articles. PMID:26509980

  18. Multiple-object tracking under occlusion conditions

    Science.gov (United States)

    Jung, Young-Kee; Ho, Yo-Sung

    2000-05-01

    This paper describes an algorithm for multiple object tracking that takes a new occlusion reasoning approach. In order to track individual objects under occlusion conditions, we design a 2D token-based tracking system using Kalman filtering. The proposed tracking system consists of two parts: object detection and tracking, and occlusion reasoning using feature matching. The object detection and tracking part finds moving objects from their background. For object detection, we develop an adaptive background update technique. By tracking individual objects with segmentation information, we generate motion trajectories. Computer simulation of the proposed scheme demonstrates its robustness to various occlusion conditions for several test sequences.

  19. 前牙反(牙合)与正常(牙合)自然舌姿势位的比较%Comparison of tongue postures at rest position between anterior cross-bite and normal bite

    Institute of Scientific and Technical Information of China (English)

    李若萱; 吕亚林; 殷戬; 张伟; 李国庆

    2011-01-01

    Objective To compare tongue positions at rest between normal occlusion people and patients with anterior cross-bite malocclusions,and to explore whether there is any abnormality in the tongue position of the anterior cross-bite malocclusions.Methods Twenty adults of normal bite (8 males and 12 females,with an average age of 23.8 years) and 20 adults of anterior cross-bite (1 1males and 9 females,with an average age of 24.6 years) were involved in this study.The position habits of tongue were investigated by a questionnaire.The tongue positions,which were enhanced by applying barium to tongue and palatal surface,were compared by cephalometric roentgenogram.Two groups were compared by t-test to determine the variation of anterior cross-bite. Results In normal occlusion group,the dorsum of tongues was sealed with all palatal surfaces except uvula site.In anterior cross bite group,tongues were far from palate,and were difficult to lift.The profile of tongue showed standing upright forward and up in normal occlusion group,while inclining back and low in anterior cross-bite group.The tops of tongue dorsum sites were at the border of soft and hard palate in normal occlusion group.While in anterior cross bite group,the tops of tongue dorsum sites were at the border of uvula and soft palate.In anterior cross-bite group,the tongue-to palate distance was bigger than that of normal occlusion group (P<0.01).However,both length and height of the tongue had no significant differences between two groups (P>0.05).Conclusions In anterior cross-bite patients,tongue positions were lower than that of normal occlusion people.%目的 通过比较前牙反(牙合)和正常(牙合)在息止(牙合)位时舌的自然姿势特征,探讨前牙反(牙合)患者的舌位置是否有特征性变化.方法 征集正常(牙合)志愿者20名(男8名,女12名,正常(牙合)组),平均年龄23.8岁;反黯患者20名(男11名,女9名,前牙反(牙合)组),平均年龄24.6岁.问诊调查舌的

  20. The influence of bubbles on the perception carbonation bite.

    Directory of Open Access Journals (Sweden)

    Paul M Wise

    Full Text Available Although many people naively assume that the bite of carbonation is due to tactile stimulation of the oral cavity by bubbles, it has become increasingly clear that carbonation bite comes mainly from formation of carbonic acid in the oral mucosa. In Experiment 1, we asked whether bubbles were in fact required to perceive carbonation bite. Subjects rated oral pungency from several concentrations of carbonated water both at normal atmospheric pressure (at which bubbles could form and at 2.0 atmospheres pressure (at which bubbles did not form. Ratings of carbonation bite under the two pressure conditions were essentially identical, indicating that bubbles are not required for pungency. In Experiment 2, we created controlled streams of air bubbles around the tongue in mildly pungent CO2 solutions to determine how tactile stimulation from bubbles affects carbonation bite. Since innocuous sensations like light touch and cooling often suppress pain, we predicted that bubbles might reduce rated bite. Contrary to prediction, air bubbles flowing around the tongue significantly enhanced rated bite, without inducing perceived bite in blank (un-carbonated solutions. Accordingly, though bubbles are clearly not required for carbonation bite, they may well modulate perceived bite. More generally, the results show that innocuous tactile stimulation can enhance chemogenic pain. Possible physiological mechanisms are discussed.

  1. Tail-biting in outdoor pig production.

    Science.gov (United States)

    Walker, P K; Bilkei, G

    2006-03-01

    A study was performed in five identical outdoor production units in the same geographic area using growing-finishing pigs of similar genetic makeup, age, diet and feed management. The severity of tail-biting (TS) was scored 1-4. The average group prevalence of bitten tails at slaughter on different farms was between 14.1+/-2.1% and 20.1+/-3.0% (Ptails was TS3, indicating moderate wounds with low grade infection. The prevalence of bitten barrows was positively correlated with the percentage of gilts in a group (r = 0.54, PPigs with zero TS score had no significantly higher weights at slaughter compared to pigs with a score of TS1. As the TS increased from 1 to 4, weights decreased (TS 1 to TS 2 to 4, Ptail-biting. PMID:15951210

  2. A New Radiologic Protocol and a New Occlusal Radiographic Index for Computer-Guided Implant Surgery.

    Science.gov (United States)

    De Santis, Daniele; Graziani, Pierfrancesco; Castellani, Roberto; Zanotti, Guglielmo; Gelpi, Federico; Marconcini, Simone; Bertossi, Dario; Nocini, Pier Francesco

    2016-07-01

    A minimum interarch space of 40 mm along the planned direction of the implant is physically mandatory to allow computer-guided implant placement with the NobelGuide technique. The aim of this paper was to describe a novel radiologic protocol and a new occlusal radiographic index that give the clinician the possibility of identifying patients with limited interarch space. Three patients undergoing NobelGuide treatment of the edentulous upper jaw were selected as candidates for this study. In the first patient, the radiographic occlusal index was built using an addition silicone material to occupy the space between the 2 arches forced into the maximum opening position. In the other 2 patients different silicone materials were used and 2 interpositional wedges were placed in between 2 silicone bites to ensure maximum mouth opening. In the first patient, the bite made with addition silicone alone resulted in distinct noise on computer tomography since the patient was not forced to achieve his maximum opening position. In the second patient the mandibular addition silicone was still quite visible, while in the third patient the condensation silicone was invisible and the quality of the image was excellent with the possibility of measuring maximum opening position and virtually predicting interference with the opposite arch. The new radiological occlusal index made with condensation silicone (Sandwich Index) proved to be effective in reproducing the maxillary forced maximum opening position during the initial planning phase, preventing errors in the inclusion or exclusion of patients suitable for NobelGuide treatment. PMID:27391524

  3. Otorrhagia bleeding due to leech bite

    OpenAIRE

    Narges Askari; Afrooz Eshaghian

    2012-01-01

    Leeches are blood-sucking hermaphroditic parasites that attach to vertebrate hosts, bite through the skin, and suck out blood. When leeches feed, they secrete an anticoagulant (hirudin), which helps them get a full meal of blood. This is the first report of leech removal from external auditory canal. Previous leech involvement cases were explained in nasopharynx, larynx, pharynx, eye, and gastrointestinal tract. Prominent sign of all cases was active bleeding from the leech attachment site; t...

  4. First Pediatric Case of Tularemia after a Coyote Bite.

    Science.gov (United States)

    Chomel, Bruno B; Morton, Jane A; Kasten, Rickie W; Chang, Chao-Chin

    2016-01-01

    Bite-transmitted tularemia is a rare event in humans and most of the cases have been associated with cat bites. We report the first pediatric case of tularemia caused by a coyote (Canis latrans) bite. Coyotes can be healthy carriers of Francisella tularensis and transmit this infectious agent through a bite. Pediatricians should be aware of this risk after a carnivore bite and implement appropriate antibiotic therapy, as amoxicillin/clavulanate potassium (Augmentin) may have prolonged the typical two to three days' incubation period commonly observed for tularemia after an animal bite and was not effective in preventing clinical signs in this child. Finally, it emphasizes again the importance of early and late serum samples for appropriate serodiagnostic. PMID:26885419

  5. First Pediatric Case of Tularemia after a Coyote Bite

    Science.gov (United States)

    Chomel, Bruno B.; Morton, Jane A.; Kasten, Rickie W.; Chang, Chao-chin

    2016-01-01

    Bite-transmitted tularemia is a rare event in humans and most of the cases have been associated with cat bites. We report the first pediatric case of tularemia caused by a coyote (Canis latrans) bite. Coyotes can be healthy carriers of Francisella tularensis and transmit this infectious agent through a bite. Pediatricians should be aware of this risk after a carnivore bite and implement appropriate antibiotic therapy, as amoxicillin/clavulanate potassium (Augmentin) may have prolonged the typical two to three days' incubation period commonly observed for tularemia after an animal bite and was not effective in preventing clinical signs in this child. Finally, it emphasizes again the importance of early and late serum samples for appropriate serodiagnostic. PMID:26885419

  6. First Pediatric Case of Tularemia after a Coyote Bite

    Directory of Open Access Journals (Sweden)

    Bruno B. Chomel

    2016-01-01

    Full Text Available Bite-transmitted tularemia is a rare event in humans and most of the cases have been associated with cat bites. We report the first pediatric case of tularemia caused by a coyote (Canis latrans bite. Coyotes can be healthy carriers of Francisella tularensis and transmit this infectious agent through a bite. Pediatricians should be aware of this risk after a carnivore bite and implement appropriate antibiotic therapy, as amoxicillin/clavulanate potassium (Augmentin may have prolonged the typical two to three days’ incubation period commonly observed for tularemia after an animal bite and was not effective in preventing clinical signs in this child. Finally, it emphasizes again the importance of early and late serum samples for appropriate serodiagnostic.

  7. The prevalence of questionable occlusal caries

    DEFF Research Database (Denmark)

    Makhija, Sonia K; Gilbert, Gregg H; Funkhouser, Ellen;

    2012-01-01

    Questionable occlusal caries (QOC) can be defined as clinically suspected caries with no cavitation or radiographic evidence of occlusal caries. To the authors' knowledge, no one has quantified the prevalence of QOC, so this quantification was the authors' objective in conducting this study...

  8. Suspected dog bite associated HIV horizontal transmission in Swaziland

    OpenAIRE

    Ganizani Mlawanda

    2013-01-01

    Background: Dog bites may lead to transmission of bacteria and viruses over and above tetanus and rabies. Theoretically human immunodeficiency virus (HIV), Hepatitis B and Hepatitis C may be transmitted after dog bites where transfer of blood from one victim to another occur in clinical practice HIV, Hepatitis B and Hepatitis C are not considered when making treatment decisions, nor adequate patient history taken to consider all potential risks after dog bites in succession.Objective: To pres...

  9. Soft Tissue Abscess due to Eikenella corrodens after Human Bite

    OpenAIRE

    Bilal Sula; Recep Tekin

    2016-01-01

    Eikenella corrodens is found in oral, gastrointestinal and genitourinary normal flora. Eikenella species have been shown to cause serious human infections such as head-neck infection, pulmonary infection, arthritis, endocarditis, intraabdominal infection, pancreatic abscesses and infection after human bite wounds. Although injuries caused by human bites are less than those caused by animal bites, such injuries have higher risk for infection and complication development. The most common cli...

  10. VARYING A V BLOCK COMPLICATING SNAKE BITE - A CASE REPORT

    Directory of Open Access Journals (Sweden)

    Vikas

    2014-02-01

    Full Text Available Snake venom toxicities comprise mainly bleeding disorders and nephrotoxicity. Cardiotoxicity is a rare manifestation of snake bite. We describe the case of a previously healthy 23 - year - old man who developed coagulopathy and AV node dysfunction following snake bite. Electrocardiography showed all variatio ns of AV conduction dysfunction . This is the first account of AV node dysfu nction caused by a snake bite with cardiotoxi city presenting as atrioventricular block

  11. Imaging of occlusal dental caries (decay) with near-IR light at 1310-nm

    Science.gov (United States)

    Bühler, Christopher M.; Ngaotheppitak, Patara; Fried, Daniel

    2005-01-01

    Dental enamel manifests high transparency in the near-IR. Previous work demonstrated that near-IR light at 1310-nm is ideally suited for the transillumination of interproximal dental caries (dental decay in between teeth) [1]. However, most new dental decay occurs in the pits and fissures of the occlusal (biting) surfaces of posterior teeth. These caries lesions cannot be detected by x-rays during the early stages of decay due to the overlapping topography of the crown of the tooth. In this study, a near- IR imaging system operating at 1310-nm was used to acquire occlusal images by launching the near-IR light into the buccal surface of the tooth just above the gingival margin (gum-line). The near-IR light diffuses through the highly scattering dentin providing uniform back illumination of the enamel of the crowns allowing imaging of the occlusal surfaces. The near-IR images show high contrast between sound and demineralized areas. Demineralization (decay) can be easily differentiated from stains, pigmentation, and hypomineralization (fluorosis). Moreover, the high transparency of the enamel enables imaging at greater depth for the detection of subsurface decay hidden under the enamel. These early images suggest that the near-IR offers significant advantages over conventional visual, tactile and radiographic caries detection methods.

  12. Virtual occlusion in planning orthognathic surgical procedures.

    Science.gov (United States)

    Nadjmi, N; Mollemans, W; Daelemans, A; Van Hemelen, G; Schutyser, F; Bergé, S

    2010-05-01

    Accurate preoperative planning is mandatory for orthognathic surgery. One of the most important aims of this planning process is obtaining good postoperative dental occlusion. Recently, 3D image-based planning systems have been introduced that enable a surgeon to define different osteotomy planes preoperatively and to assess the result of moving different bone fragments in a 3D virtual environment, even for soft tissue simulation of the face. Although the use of these systems is becoming more accepted in orthognathic surgery, few solutions have been proposed for determining optimal occlusion in the 3D planning process. In this study, a 3D virtual occlusion tool is presented that calculates a realistic interaction between upper and lower dentitions. It enables the surgeon to obtain an optimal and physically possible occlusion easily. A validation study, including 11 patient data sets, demonstrates that the differences between manually and virtually defined occlusions are small, therefore the presented system can be used in clinical practice.

  13. Animal and Human Bites: Prophlaxis and Approach to the Treatment

    Directory of Open Access Journals (Sweden)

    Ahmet KARAKAŞ

    2010-09-01

    Full Text Available Human and animal bites can cause complications ranging from slight injuries to serious infections. Infections can originate from the biter’s oral cavity and victims’s skin flora. Compared with animal bites, human bites have a higher risk of infection development. Most of the wound infections due to bites are caused by polymicrobials. Pasteurella species, streptococci, staphylococci, Moraxella, Corynebacterium, and Neisseria spp., Bergeyella zoohelcum and Capnocytophaga species are the most frequently isolated pathogens. Dogs (85-90 %, cats (5-10 %, humans (2-3 % and rodents (2-3 % are responsible for most of the bite injuries. Injuries due to dog bites occur mostly in men older than 20 years old and usually on the extremities. Cat bites and related injuries are found in 66 % on the upper extremities, typically on the hands. Bites of human origin are mostly occur in males between the ages of 20-30, and especially seen on the arms, fingers and head-neck regions. Most of the bites from rodents have a rat origin. Those bites often happen at night , especially on the face or hand of children under five years old who live in poor hygienic conditions. The dog bites are mostly due to the crush-style injuries and in 4-25 % of those injuries an infection develops in about 24 hours. Because of their sharp teeth, cats cause puncture-type wounds. Approximately 30-50 % of the cat bite wounds become infected 12 hours later. Hand, face and genital region wounds have a higher risk for the occurrence of an infection, because of their special anatomical structure. In case of risk factors such as diabetes mellitus, kidney failure, long term steroid use, splenectomy, extreme ages (children and elderly people and systemic lupus erythematosus (SLE, infection could easily spread to the deep tissues. The suturing of bite wounds remain controversial. Infected wounds and bites older than 24 hours could be left open. Cosmetically problematic wounds like on the face

  14. Is extreme bite performance associated with extreme morphologies in sharks?

    Science.gov (United States)

    Huber, Daniel R; Claes, Julien M; Mallefet, Jérôme; Herrel, Anthony

    2009-01-01

    As top predators in many oceanic communities, sharks are known to eat large prey and are supposedly able to generate high bite forces. This notion has, however, largely gone untested due to the experimental intractability of these animals. For those species that have been investigated, it remains unclear whether their high bite forces are simply a consequence of their large body size or the result of diet-related adaptation. As aquatic poikilotherms, sharks can grow very large, making them ideal subjects with which to investigate the effects of body size on bite force. Relative bite-force capacity is often associated with changes in head shape because taller or wider heads can, for example, accommodate larger jaw muscles. Constraints on bite force in general may also be released by changes in tooth shape. For example, more pointed teeth may allow a predator to penetrate prey more effectively than blunt, pavementlike teeth. Our analyses show that large sharks do not bite hard for their body size, but they generally have larger heads. Head width is the best predictor of bite force across the species included in our study as indicated by a multiple regression model. Contrary to our predictions, sharks with relatively high bite forces for their body size also have relatively more pointed teeth at the front of the tooth row. Moreover, species including hard prey in their diet are characterized by high bite forces and narrow and pointed teeth at the jaw symphysis. PMID:19006469

  15. Is extreme bite performance associated with extreme morphologies in sharks?

    Science.gov (United States)

    Huber, Daniel R; Claes, Julien M; Mallefet, Jérôme; Herrel, Anthony

    2009-01-01

    As top predators in many oceanic communities, sharks are known to eat large prey and are supposedly able to generate high bite forces. This notion has, however, largely gone untested due to the experimental intractability of these animals. For those species that have been investigated, it remains unclear whether their high bite forces are simply a consequence of their large body size or the result of diet-related adaptation. As aquatic poikilotherms, sharks can grow very large, making them ideal subjects with which to investigate the effects of body size on bite force. Relative bite-force capacity is often associated with changes in head shape because taller or wider heads can, for example, accommodate larger jaw muscles. Constraints on bite force in general may also be released by changes in tooth shape. For example, more pointed teeth may allow a predator to penetrate prey more effectively than blunt, pavementlike teeth. Our analyses show that large sharks do not bite hard for their body size, but they generally have larger heads. Head width is the best predictor of bite force across the species included in our study as indicated by a multiple regression model. Contrary to our predictions, sharks with relatively high bite forces for their body size also have relatively more pointed teeth at the front of the tooth row. Moreover, species including hard prey in their diet are characterized by high bite forces and narrow and pointed teeth at the jaw symphysis.

  16. A qualitative investigation of the perceptions of female dog-bite victims and implications for the prevention of dog bites

    OpenAIRE

    Westgarth, Carri; Watkins, Francine

    2015-01-01

    Preventing dog bites is an increasingly important public health and political issue with implications for both human and animal health and welfare. Expert opinion is that most bites are preventable. Intervention materials have been designed to educate people on how to assess the body language of dogs, evaluate risk, and take appropriate action. The effectiveness of this approach is rarely evaluated and the incidence of dog bites is thought to be increasing. Is the traditional approach to dog ...

  17. [A case of bite by Naja Naja Naja in India. Problems posed by the treatment of snake bites].

    Science.gov (United States)

    Lagraulet, J

    1984-01-01

    The author reports a case of poisonous snake bite by Naja naja naja, in India. The patient recovered rapidly after treatment by antivenom serum. He emphasizes the importance of prompt intravenous injection of serum. Serum is less active for viper bites, and should be injected even more rapidly. However, in France, some authors prefer Heparin for treating French viper bites. Further studies are needed to clarify this therapeutic problem. PMID:6722971

  18. Individual piglets' contribution to the development of tail biting.

    Science.gov (United States)

    Zonderland, J J; Kemp, B; Bracke, M B M; den Hartog, L A; Spoolder, H A M

    2011-02-01

    Conflicting hypotheses exist about the contribution of individual pigs to the development of a tail-biting outbreak, but there is limited quantitative information to support or dismiss them. This study aims to quantify the development of tail-biting behaviour at pen and individual piglet level, before and after the first visible tail damage. Video recordings of 14 pens with tail-biting outbreaks and individually marked weaned piglets were used to observe tail-biting incidents (TBIs; piglet biting a penmate's tail). When visible tail damage was first observed in a pen (i.e. day of tail biting outbreak; D0), the video recordings of the previous 6 (till D-6) and the following 6 days (till D6) were analysed every other day for TBIs and the identities of the biter and bitten piglet were recorded. The average TBIs per individual piglet (within each pen) per observation day were analysed to quantify the development of tail-biting behaviour and to identify pronounced biters and/or bitten piglets. The (absence of) coherence for TBIs in a pen was used to test whether biters preferred a specific penmate. There was an exponential increase in the intensity (linear on log scale) of the TBIs from an average of 0.7 bites/h at D-6 to 2.3 bites/h at D6. An additional negative quadratic component suggests that a plateau for tail-biting behaviour was reached by the end of the observation period. Before any visible tail damage was observed (i.e. before D0), 82% of the piglets performed and 96% of them received tail bites. After D0, the figures were 99% and 100%, respectively. One or a few pronounced biters could be identified in almost all pens. These biters already showed more tail biting at D-6 than their penmates. Furthermore, these biters showed a greater increase in tail-biting behaviour during the observation period than the average scores of their penmates. In contrast, there was no apparent increase in the receipt of bites among the piglets that had already been bitten more

  19. Reported cat bites in Dallas: characteristics of the cats, the victims, and the attack events.

    OpenAIRE

    Wright, J C

    1990-01-01

    Associated with the increased popularity of cats as pets in American households has been an increase in the number of cat bites reported to health departments. Bite reports from Dallas, TX, for 1985 were analyzed for different aspects of the cat bite event, including characteristics of the cats, the people bitten, the wounds, and the attack events. Cat bites and scratches constituted 25 percent of the 2,494 reported animal bites. Biting cats were typically stray females. People 21 to 35 years...

  20. First aid for cobra (Naja naja) bites

    International Nuclear Information System (INIS)

    The blood levels of Indian cobra (Naja naja) venom from its injection site in the lower limbs of monkeys (Macaca fascicularis) were studied by radioimmunoassay. In practical terms, the movement of venom from its site of injection into the general circulation, was effectively delayed by the application of a firm crepe or elastic bandage over the whole limb, and especially the injection site, combined with its immobilisation by a splint, taking care that firm pressure is maintained over the area of the bite. (auth.)

  1. Onychophagia (Nail biting, anxiety, and malocclusion

    Directory of Open Access Journals (Sweden)

    Avesh Sachan

    2012-01-01

    Full Text Available Nail biting is a stress removing habit adopted by many children and adults. People usually do it when they are nervous, stressed, hungry, or bored. All of these situations are having a common phenomenon between them is anxiety. Onychophagia is also a sign of other emotional or mental disorders. It is a habit that is not easy to quit and reflection of extreme nervousness or inability to handle stressful conditions. This abnormal habit may cause various malocclusions associated with dentoalveolar segment of the oral cavity. Crowding and rotations of incisors are common with this habit.

  2. Dog-bite induced sepsis : a report of four cases

    NARCIS (Netherlands)

    Hovenga, S; Tulleken, JE; Moller, LVM; Jackson, SA; Van der Werf, TS; Zijlstra, JG

    1997-01-01

    Occasionally, a dog-bite is complicated by a systemic overwhelming infection. We report four consecutive patients who were admitted to our intensive care unit because of sepsis syndrome following dog-bites. The history of these patients did not reveal any immunocompromising conditions. Capnocytophag

  3. Bite angle effects of diphosphines in carbonylation reactions

    NARCIS (Netherlands)

    P.W.N.M. van Leeuwen; Z. Freixa

    2008-01-01

    This chapter contains sections titled: * Introduction * Rhodium-Catalyzed Hydroformylation o Introduction o Steric Bite Angle Effect and Regioselectivity o Electronic Bite Angle Effect and Activity o Isotope Effects [24] * Platinum-Catalyzed Alkene Hydroformylation * Palladium-Catalyzed CO/Ethene Co

  4. Individual piglets' contribution to the development of tail biting

    NARCIS (Netherlands)

    Zonderland, J.J.; Kemp, B.; Bracke, M.B.M.; Hartog, den L.A.; Spoolder, H.A.M.

    2011-01-01

    Conflicting hypotheses exist about the contribution of individual pigs to the development of a tail-biting outbreak, but there is limited quantitative information to support or dismiss them. This study aims to quantify the development of tail-biting behaviour at pen and individual piglet level, befo

  5. Bullous reactions to bed bug bites reflect cutaneous vasculitis

    Science.gov (United States)

    This study evaluates bullous cutaneous reactions and sequential histopathology in an individual sensitized to bed bug bites in an effort to better understand the allergic response and histology associated with these bites. There was a progression of the inflammatory response across time ranging from...

  6. Insecticidal sugar baits for adult biting midges.

    Science.gov (United States)

    Snyder, D; Cernicchiaro, N; Allan, S A; Cohnstaedt, L W

    2016-06-01

    The mixing of an insecticide with sugar solution creates an oral toxin or insecticidal sugar bait (ISB) useful for reducing adult insect populations. The ability of ISBs to kill the biting midge Culicoides sonorensis Wirth and Jones (Diptera: Ceratopogonidae), a vector of bluetongue virus, epizootic hemorrhagic disease and vesicular stomatitis viruses, was tested. The commercial insecticide formulations (percentage active ingredient) tested included bifenthrin, cyfluthrin, deltamethrin, permethrin, dinotefuran, imidacloprid, thiamethoxam and spinosad. Mortality rates were determined for various concentrations of commercial formulations (0.01, 0.05, 0.1, 1, 2 and 3%) and observed at 1, 4, 10 and 24 h post-exposure to the ISB. In the first set of assays, laboratory-reared midges were fed sugar ad libitum and then exposed to insecticide-treated sugar solutions to measure mortality. The second assay assessed competitive feeding: midges were provided with a control sugar solution (10% sucrose) in one vial, and a sugar and insecticide solution in another. Pyrethroid treatments resulted in the greatest mortality in the first hour at the lowest concentrations and spinosad consumption resulted in the least mortality. Biting midges were not deterred from feeding on the 1% ISB solutions despite the presence of an insecticide-free alternative source of sugar. PMID:26789534

  7. Soft Tissue Abscess due to Eikenella corrodens after Human Bite

    Directory of Open Access Journals (Sweden)

    Bilal Sula

    2016-03-01

    Full Text Available Eikenella corrodens is found in oral, gastrointestinal and genitourinary normal flora. Eikenella species have been shown to cause serious human infections such as head-neck infection, pulmonary infection, arthritis, endocarditis, intraabdominal infection, pancreatic abscesses and infection after human bite wounds. Although injuries caused by human bites are less than those caused by animal bites, such injuries have higher risk for infection and complication development. The most common clinical case observed after human bites is infections. If the infection that may appear is not treated, it may cause amputation and severe complications, which may result with death. One of the most common agents that cause these infections is E. corrodens [1-3]. We reported a rarely case of E. corrodens infection after human bite. J Microbiol Infect Dis 2016;6(1: 36-37

  8. The eyelid sign: a clue to bed bug bites.

    Science.gov (United States)

    Quach, Kim A; Zaenglein, Andrea L

    2014-01-01

    In pediatric patients, determining the culprit insect in arthropod assaults can be challenging. The patient's history may be vague, the causative insect may not be readily associated with the bites, and the clinical appearance of bites can be variable. Six pediatric patients from the Penn State Milton S. Hershey Medical Center dermatology offices with bed bug bites were identified. All had bites involving the face, trunk, and extremities. Five patients demonstrated papules on one upper eyelid associated with erythema and edema. One patient had papules on both upper eyelids. When an arthropod assault is suspected, the "eyelid sign," i.e., bites involving the upper eyelid associated with erythema and edema, may point to bed bugs. PMID:24649832

  9. Pulmonary veno-occlusive disease.

    Science.gov (United States)

    Montani, David; Lau, Edmund M; Dorfmüller, Peter; Girerd, Barbara; Jaïs, Xavier; Savale, Laurent; Perros, Frederic; Nossent, Esther; Garcia, Gilles; Parent, Florence; Fadel, Elie; Soubrier, Florent; Sitbon, Olivier; Simonneau, Gérald; Humbert, Marc

    2016-05-01

    Pulmonary veno-occlusive disease (PVOD) is a rare form of pulmonary hypertension (PH) characterised by preferential remodelling of the pulmonary venules. In the current PH classification, PVOD and pulmonary capillary haemangiomatosis (PCH) are considered to be a common entity and represent varied expressions of the same disease. The recent discovery of biallelic mutations in the EIF2AK4 gene as the cause of heritable PVOD/PCH represents a major milestone in our understanding of the molecular pathogenesis of PVOD. Although PVOD and pulmonary arterial hypertension (PAH) share a similar clinical presentation, with features of severe precapillary PH, it is important to differentiate these two conditions as PVOD carries a worse prognosis and life-threatening pulmonary oedema may occur following the initiation of PAH therapy. An accurate diagnosis of PVOD based on noninvasive investigations is possible utilising oxygen parameters, low diffusing capacity for carbon monoxide and characteristic signs on high-resolution computed tomography of the chest. No evidence-based medical therapy exists for PVOD at present and lung transplantation remains the preferred definitive therapy for eligible patients. PMID:27009171

  10. Workflow Optimization in Vertebrobasilar Occlusion

    International Nuclear Information System (INIS)

    Objective: In vertebrobasilar occlusion, rapid recanalization is the only substantial means to improve the prognosis. We introduced a standard operating procedure (SOP) for interventional therapy to analyze the effects on interdisciplinary time management. Methods: Intrahospital time periods between hospital admission and neuroradiological intervention were retrospectively analyzed, together with the patients’ outcome, before (n = 18) and after (n = 20) implementation of the SOP. Results: After implementation of the SOP, we observed statistically significant improvement of postinterventional patient neurological status (p = 0.017). In addition, we found a decrease of 5:33 h for the mean time period from hospital admission until neuroradiological intervention. The recanalization rate increased from 72.2% to 80% after implementation of the SOP. Conclusion: Our results underscore the relevance of SOP implementation and analysis of time management for clinical workflow optimization. Both may trigger awareness for the need of efficient interdisciplinary time management. This could be an explanation for the decreased time periods and improved postinterventional patient status after SOP implementation.

  11. Animal bite incidence in the County of Shush, Iran

    Institute of Scientific and Technical Information of China (English)

    Hamid Kassiri; Ali Kassiri; Masoud Lotfi; Babak Shahkarami; Seyed-Sahar Hosseini

    2014-01-01

    Objective:To determine the epidemiology of animal bites during a five-year period(2004-2008) inShushCounty,Khuzestan province, southwesternIran.Methods:In a descriptive cross sectional study, all cases of animal bites referred to the health centers inShushCounty were investigated during2004-2008.The necessary data were recorded on the special questionnaire that contains questions about bite animal, age, sex, occupation, treatment, the bite site on the body and so forth.Results:Out of a total of2283 cases that underwent the animal bites during the mentioned five years,1771 people(77.6%) were male and511(22.4%) were female .Most cases were related to age groups10-20(33.4%) and20-30(22%) years.The average incidence rate of animal bite during these years was determined as2.82 cases per1000 people.The highest incidence rate was related to the year2007 with3 cases per1000 people.Animal bites in the winter(29.3%) and fall(29%) were more common.Almost86.5% and13.5% of the cases occurred in rural areas and urban areas, respectively.Nearly30% and20.4% of cases were students and farmers, respectively.A total of2155(94.4%) and86(3.8%) bites occurred by the dog and cat, respectively.The greatest bite place on the body was in the feet(81.4%) and in the hands(13%(. During the study period,2162 cases(94.7%) were treated with an incomplete regimen, and120 cases(5.3%) were treated with a complete regimen.Conclusions:Because the cost of prevention after biting for the health system is high, so, preventive programs must be concentrated on public health instruction, particularly in villagers, students, farmers and the owners of the domestic animals.

  12. Smile line and occlusion: An epidemiological study

    Directory of Open Access Journals (Sweden)

    Mahsa Harati

    2013-01-01

    Conclusion: Within the limitations of such studies, it might be concluded that there is a significant and important relation between some occlusal parameters and smile design, which must be considered.

  13. Retinal Artery Occlusion Treatment with Hyperbaric Oxygen

    Directory of Open Access Journals (Sweden)

    Harun Cakmak

    2016-01-01

    Full Text Available Retinal artery occlusion is one of the vision-threating emergency situations in ophthalmology. In this paper, a case of retinal artery occlusion is presented. Fifty seven year- old female patient presented with a sudden onset visual loss in her left eye. Best corrected visual acuity (BCVA levels were 1.0 and 0.7 in the right and left eye, respectiveley. Dilated fundus examination revealed no pathological finding in the right eye. Whereas calcified plaque was seen in upper arquat artery bifurcation in the left eye. Pallorness with retinal edema was seen in this arterial trace. Retinal artery occlusion was diagnosed and patient was referred for hyperbaric oxygen therapy. After a total of 20 sessions of hyperbaric oxygen therapy, the calcified plaques disappeared and her BCVA increased to 20/20. Hyperbaric oxygen treatment is vision-saving method which should be considered in retinal artery occlusion.

  14. A two year study of verified spider bites in Switzerland and a review of the European spider bite literature.

    Science.gov (United States)

    Nentwig, Wolfgang; Gnädinger, Markus; Fuchs, Joan; Ceschi, Alessandro

    2013-10-01

    During a two-year study, all spider bites recorded by Swiss primary care physicians were reported to the Swiss Toxicological Information Centre and all collected spiders were identified. A total of 14 verified spider bites were recorded, involving five species from four families: Zoropsis spinimana (five cases), Cheiracanthium punctorium (four cases), Tegenaria atrica (three cases) and one case of Malthonica ferruginea (= Tegenaria ferruginea) (both Agelenidae), and one case of Amaurobius ferox (Amaurobiidae). The bites of all spider species produced relatively mild symptoms. Local symptoms such as moderate to severe pain, circumscribed swelling and redness were the only effects in most cases. Systemic symptoms were rare. There was complete recovery in all cases and all lesions healed completely without further damage or secondary disorders. Following a review of the European spider bite literature, the number of spider species capable of biting humans in Europe is considered to be much larger than could be concluded from this study. Most spider bites are restricted to species living synanthropically, thus promoted by climate and habitat change. The annual frequency of spider bites in Switzerland is estimated at 10-100 bites per million inhabitants, but this is predicted to increase due to the continuous arrival of new alien species, many of which have a high potential to establish in urban areas. PMID:23872119

  15. Stent Graft in Managing Juxta-Renal Aortoiliac Occlusion

    International Nuclear Information System (INIS)

    Endovascular procedures are frequently used as an alternative to surgical bypass in aortic and iliac occlusion. Stents have revolutionized the scope of such endovascular procedures, but there are few reports of stents or stent grafts in occlusive juxta-renal aortic occlusion. We present a case where such occlusion was managed by use of a stent graft with successful outcome

  16. Retinal vein occlusion in Benin City, Nigeria

    OpenAIRE

    Uhumwangho, Odarosa M.; Darlingtess Oronsaye

    2016-01-01

    Background: Retinal vein occlusion (RVO) is the most common occlusive retinal vascular disorder and results in varying degrees of visual loss. Aim: To determine the pattern of presentation, risk factors, and treatment outcomes in a group of patients with RVO seen in a tertiary hospital in Nigeria. Materials and Methods: Medical records of patients who presented to the University of Benin Teaching Hospital, Benin City, Nigeria in whom a diagnosis of RVO was made over a 5 years period were revi...

  17. Current possibilities in occlusal caries management

    Directory of Open Access Journals (Sweden)

    Hrvoje Jurić

    2013-11-01

    Full Text Available Dental caries is a multifactorial disease that affects most populations throughout the world and it is still the primary cause of oral pain and tooth loss. The occlusal surfaces of posterior teeth are the most vulnerable sites for dental caries due to their anatomy. Therefore, the aim of the following article is to summarize current knowledge on occlusal caries development and the possibilities of its prevention. Although the overall caries rate today has fallen for populations in industrialized countries, the rate of occlusal surface caries has not decreased. This may be explained with fact that topically applied fluorides and their mode of action prevent caries better on smooth than on occlusal surfaces. As we know, tooth decay of first permanent molars causes a great deal of different short and long term difficulties for patients. Therefore, there is a continuous need for implementation of programs for caries prevention in permanent teeth. Nowadays, we like to treat our patients by minimally invasive methods. A very important step in our effective preventive treatment is sealing pits and fissures as a cornerstone of occlusal caries management. Reliable assessment of caries activity is also very important for defining treatment needs and plans. A very important decision, which should be made during occlusal caries management, is the selection of restorative material according to the treatment plan. Conclusion. Current possibilities in occlusal caries prevention and management are very effective. Therefore, dentists today do not have any excuse for avoiding the philosophy of Minimally Invasive Dentistry, especially when we talk about caries management of occlusal surfaces in permanent molars.

  18. Branch retinal artery occlusion in Susac's syndrome

    Directory of Open Access Journals (Sweden)

    Ricardo Evangelista Marrocos de Aragão

    2015-02-01

    Full Text Available Susac's syndrome is a rare disease attribuited to a microangiopathy involving the arterioles of the cochlea, retina and brain. Encefalopathy, hearing loss, and visual deficits are the hallmarks of the disease. Visual loss is due to multiple, recurrent branch arterial retinal occlusions. We report a case of a 20-year-old women with Susac syndrome presented with peripheral vestibular syndrome, hearing loss, ataxia, vertigo, and vision loss due occlusion of the retinal branch artery.

  19. Retinal artery occlusions in children.

    Science.gov (United States)

    Dharmasena, Aruna; Wallis, Simon

    2014-01-01

    The purpose of this study is to present a case of RAO in a 13 year old girl with a preceding history of hyperextension of the neck at her hairdressers for a long duration and use of her mobile phone handset resting it against the side of her neck presumably exerting some pressure on carotids during the same time. Materials and methods of this study was reported as case report and review of literature. A 13 year-old girl presented with the left supero-nasal scotoma due to an inferior temporal branch retinal artery occlusion (BRAO). She underwent extensive investigations and no underlying cause was discovered. She gave a history of cervical extension over a long period of time while having the hair coloured twice in the preceding week. She also mentioned that she was using her mobile phone more or less continuously during both these occasions keeping it against her neck. Given the above history it is possible that the pressure on the ipsilateral carotid arteries or the prolong neck extension may have been responsible for the formation of a platelet embolus resulting in the BRAO. In conclusion, although cerebro-vascular accidents due to 'beauty parlor stroke syndrome' (JAMA 269:2085-2086, 1993) have been reported previously it has not been reported in children to our knowledge. On the other hand, 'beauty parlor stroke syndrome' occurs due to a dissection of the vertebral arteries or due to mechanical compression of the vertebral arteries during the prolonged hyperextension of the neck. The central retinal artery originates from the internal carotid circulation and it is highly unlikely for an embolus to enter the retinal circulation from the vertebral arteries. Therefore, the authors favour the possibility that the compulsive use of a mobile phone exerting pressure on the carotid arteries for a long time may have led to the formation of an embolus and subsequent RAO in this case.

  20. Water vapour and heat combine to elicit biting and biting persistence in tsetse

    OpenAIRE

    Chappuis, Charles JF; Béguin, Steve; Vlimant, Michèle; Guerin, Patrick M

    2014-01-01

    Background Tsetse flies are obligatory blood feeders, accessing capillaries by piercing the skin of their hosts with the haustellum to suck blood. However, this behaviour presents a considerable risk as landing flies are exposed to predators as well as the host’s own defense reactions such as tail flicking. Achieving a successful blood meal within the shortest time span is therefore at a premium in tsetse, so feeding until replete normally lasts less than a minute. Biting in blood sucking ins...

  1. Biting the hand that feeds’: fever and altered sensorium following a dog bite

    OpenAIRE

    Hawkins, Joseph; Wilson, Ann; McWilliams, Eric

    2011-01-01

    Capnocytophaga canimorsus infection is the most severe and rapidly progressive bacterial infection transmitted by dog bite and fortunately is very rare. The authors describe a 68-year-old gentleman who presented in an acute confusional state 2 days after having been bitten on the left hand by a dog. Despite immediate broad-spectrum intravenous antibiotics, he developed significant sequelae including disseminated intravascular coagulopathy, microvascular emboli leading to peripheral necrosis, ...

  2. Biting rates and developmental substrates for biting midges (Diptera: Ceratopogonidae) in Iquitos, Peru.

    Science.gov (United States)

    Mercer, David R; Spinelli, Gustavo R; Watts, Douglas M; Tesh, Robert B

    2003-11-01

    Biting midges (Diptera: Ceratopogonidae) were collected at 16 periurban and rural sites around Iquitos, Peru, between 17 October 1996 and 26 May 1997. Culicoides paraensis (Goeldi), the principal vector of Oropouche virus, was the most commonly collected species (9,086 flies) with Culicoides insinuatus Wirth & Blanton second (7,229 flies). Although both species were collected at all sampling sites (linear (distance surveyed approximately 25 km), C. paraensis dominated at northern collection sites (> 90%), whereas C. insinuatus prevailed at southern collection sites (> 60%). C. paraensis were collected from human sentinels at a constant rate throughout daylight hours, at similar rates during wet and dry months, and regardless of rainfall. Larval developmental substrates for C. paraensis included decaying platano (Musa x paradisiaca L. [Musaceae]) stems, stumps, flowers, fruits, and debris beneath platano trees as well as from soil beneath a fruiting mamay (Syzygium malaccense Merr. & Perry [Myrtaceae] ) tree and organic-rich mud along a lake shoreline. C. insinuatus adults likewise emerged from decaying platano and organic-rich mud along a lake shoreline, but also from debris accumulated in the axils of aguaje (Mauritia flexuosa L. [Palmae]) fronds and decaying citrus fruit. Despite high numbers of biting adults near putative substrates, adults of neither species emerged from other decomposing plant material, soil, phytotelmata, or artificial containers. Because both species of biting midges emerged in high numbers from all parts of platano (ubiquitous in Iquitos), it will be challenging to control them through sanitation. PMID:14765657

  3. Animal Bites in Borujerd: An Overview of Animal Bites in Iran

    Directory of Open Access Journals (Sweden)

    Sabouri Ghannad

    2014-04-01

    Full Text Available Background Rabies has been reported as the most important endemic zoonotic disease in Iran and still remains as a major public health problem. Objectives The main objective of the current research was to study the epidemiology of animal bites in Borujerd County in Iran and to compare its prevalence to other parts of Iran from April 2006 to September 2011. Patients and Methods The data were recorded in questionnaires and analyzed by SPSS version 16. Chi-square test was performed to evaluate the relationship among variables and P value was set as 0.05. Results Dog bites were the most common (69.8%, followed by cat (17.2%, fox and wolf (1.4%, sheep and cow (2.8%, monkey and donkey (5%, mouse and squirrel (2.2% and other animals (1.6%. Leg was the most common bite site forming 46.6% of cases, followed by hands (41.8%, buttocks (4.6%, head (4% and body (2.9%. Most of the subjects belonged to the age group < 10 (175.2 per 100000 populations. The injury location was associated significantly with sex and the residential status. Conclusions This study strongly highlights a high priority goal for health authorities to develop educational programs, recommended for the general population to inform them about the benefits of continuing the medication. Vaccination of domestic dogs and also eradication of stray ones, in addition to educational programs should be prioritized by health authorities.

  4. Afibrinogenemia following snake bite (Crotalus durissus terrificus

    Directory of Open Access Journals (Sweden)

    C. F. S. Amaral

    1988-08-01

    Full Text Available This paper reports two cases of afibrinogenemia with normal platelet count following Crotalus durissus terrificus, snake bite Both patients presented high output acute renal failure and case two also had increased blood levels of CPK and LDH compatible with the diagnosis of rhabdomyolysis. Case one was given an unknown amount of antivenom and was treated with epsilonaminocaproic acid and a fresh whole blood transfusion and showed recovery of the coagulation disturbance 40 hours following these measures. Case two was given an adequate amount of crotalide antivenom and the coagulation tests performed 12 hours later showed a normal partial thromboplastin time and fibrinogen 86 mg/100ml. Case one presented no haemorrhagic disturbances. Case two presented persistent bleeding following venopuncture and after removal of impetigo crust in the legs. Acute renal failure was treated conservatively and both patients were discharged from the hospital with recovery of the renal function.

  5. Slow Death by Many Mosquito Bites

    CERN Document Server

    Redner, S

    2014-01-01

    We study the dynamics of a single diffusing particle (a "man") with diffusivity $D_M$ that is attacked by another diffusing particle (a "mosquito") with fixed diffusivity $D_m$. Each time the mosquito meets and bites the man, the diffusivity of the man is reduced by a fixed amount, while the diffusivity of the mosquito is unchanged. The mosquito is also displaced by a small distance $\\pm a$ with respect to the man after each encounter. The man is defined as dead when $D_M$ reaches zero. At the moment when the man dies, his probability distribution of displacements $x$ is given by a Cauchy form, which asymptotically decays as $x^{-2}$, while the distribution of times $t$ when the man dies asymptotically decays as $t^{-3/2}$, which has the same form as the one-dimensional first-passage probability.

  6. Are occlusal characteristics, headache, parafunctional habits and clicking sounds associated with the signs and symptoms of temporomandibular disorder in adolescents?

    Science.gov (United States)

    Lauriti, Leandro; Motta, Lara Jansiski; Silva, Paula Fernanda da Costa; Leal de Godoy, Camila Haddad; Alfaya, Thays Almeida; Fernandes, Kristianne Porta Santos; Mesquita-Ferrari, Raquel Agnelli; Bussadori, Sandra Kalil

    2013-10-01

    [Purpose] To assess the association between the oclusal characteristics, headache, parafunctional habits and clicking sounds and signs/symptoms of TMD in adolescents. [Subjects] Adolescents between 14 and 18 years of age. [Methods] The participants were evaluated using the Helkimo Index and a clinical examination to track clicking sounds, parafunctional habits and other signs/symptoms of temporomandibular disorder (TMD). Subjects were classified according to the presence or absence of headache, type of occlusion, facial pattern and type of bite. In statistical analyse we used the chi-square test and Fisher's exact test, with a level of significance of 5%. [Results] The sample was made up of 81 adolescents with a mean age of 15.64 years; 51.9% were male. The prevalence of signals/symptoms of TMD was 74.1%, predominantly affecting females. Signals/symptoms of TMD were significantly associated with clicking sounds, headache and nail biting. No associations were found between signals/symptoms of TMD and angle classification, type of bite and facial pattern. [Conclusion] Headache is one of the most closely associated symptoms of TMD. Clicking sounds were found in the majority of cases. Therefore, the sum of two or more factors may be necessary for the onset and perpetuation of TMD.

  7. Are Occlusal Characteristics, Headache, Parafunctional Habits and Clicking Sounds Associated with the Signs and Symptoms of Temporomandibular Disorder in Adolescents?

    Science.gov (United States)

    Lauriti, Leandro; Motta, Lara Jansiski; Silva, Paula Fernanda da Costa; Leal de Godoy, Camila Haddad; Alfaya, Thays Almeida; Fernandes, Kristianne Porta Santos; Mesquita-Ferrari, Raquel Agnelli; Bussadori, Sandra Kalil

    2013-01-01

    [Purpose] To assess the association between the oclusal characteristics, headache, parafunctional habits and clicking sounds and signs/symptoms of TMD in adolescents. [Subjects] Adolescents between 14 and 18 years of age. [Methods] The participants were evaluated using the Helkimo Index and a clinical examination to track clicking sounds, parafunctional habits and other signs/symptoms of temporomandibular disorder (TMD). Subjects were classified according to the presence or absence of headache, type of occlusion, facial pattern and type of bite. In statistical analyse we used the chi-square test and Fisher's exact test, with a level of significance of 5%. [Results] The sample was made up of 81 adolescents with a mean age of 15.64 years; 51.9% were male. The prevalence of signals/symptoms of TMD was 74.1%, predominantly affecting females. Signals/symptoms of TMD were significantly associated with clicking sounds, headache and nail biting. No associations were found between signals/symptoms of TMD and angle classification, type of bite and facial pattern. [Conclusion] Headache is one of the most closely associated symptoms of TMD. Clicking sounds were found in the majority of cases. Therefore, the sum of two or more factors may be necessary for the onset and perpetuation of TMD. PMID:24259787

  8. Can masticatory electromyography be normalised to submaximal bite force?

    Science.gov (United States)

    Crawford, S R; Burden, A M; Yates, J M; Zioupos, P; Winwood, K

    2015-05-01

    The combination of bite force and jaw muscle electromyography (EMG) provides an insight into the performance of the stomatognathic system, especially in relation to dynamic movement tasks. Literature has extensively investigated possible methods for normalising EMG data encapsulating many different approaches. However, bite force literature trends towards normalising EMG to a maximal voluntary contraction (MVC), which could be difficult for ageing populations or those with poor dental health or limiting conditions such as temporomandibular disorder. The objectives of this study were to (i) determine whether jaw-closing muscle activity is linearly correlated with incremental submaximal and maximal bite force levels and (ii) assess whether normalising maximal and submaximal muscle activity to that produced when performing a low submaximal bite force (20 N) improves repeatability of EMG values. Thirty healthy adults (15 men, 15 women; mean age 21 ± 1·2 years) had bite force measurements obtained using a custom-made button strain gauge load cell. Masseter and anterior temporalis muscle activities were collected bilaterally using surface EMG sensors whilst participants performed maximal biting and three levels of submaximal biting. Furthermore, a small group (n = 4 females) were retested for reliability purposes. Coefficients of variation and intra-class correlation coefficients showed markedly improved reliability when EMG data were normalised compared to non-normalised. This study shows that jaw muscle EMG may be successfully normalised to a very low bite force. This may open possibilities for comparisons between at-risk sample groups that may otherwise find it difficult to produce maximal bite force values.

  9. The influence of tail biting on performance of fattening pigs.

    Science.gov (United States)

    Wallgren, P; Lindahl, E

    1996-01-01

    In comparison to 29 non bitten animals, severe tail biting was found to decrease the daily weight gain (DWG) by 25% in 8 fattening pigs during the period of biting. However, when comparing the weight gain of the lifetime between bitten and non bitten pigs, no influence of the tail biting was found. It is of interest that severely wounded pigs were parenterally treated with prokainpenicillin G for 3 consecutive days in connection with the tail biting, which could be suggested to promote the growth by reducing the influence of infections gained by the tail biting as well as of other infections present in herds rearing conventional pigs. Despite penicillin treatment, abscesses were more frequently recorded in tail bitten pigs than in non bitten animals. The tail biting was not equally distributed between the sexes, as barrows were more frequently bitten than gilts. Among the unbitten pigs, barrows were also found to grow faster than gilts. Indeed, when comparing tail bitten and non bitten barrows, a negative influence of tail biting on DWG was not only shown during the period of biting, but could also be monitored as a reduced DWG from that period until slaughter by 11% and during lifetime by 5% (the tail bitten gilts were too few to allow statistical calculations). These results clearly indicate that tail biting affects the growth rate of the lifetime despite penicillin treatment. However, it should be stressed that this decreased lifetime DWG may not be monitored when evaluating abattoir data because the sex distribution of the pigs may not be known in such materials. PMID:9050278

  10. Outbreak of vampire bat biting in a Venezuelan village

    Directory of Open Access Journals (Sweden)

    Caraballo H. Alejandro J.

    1996-01-01

    Full Text Available An outbreak of 154 cases of vampire bat biting in a four-month period in the gold mine of Payapal, a Venezuelan village, is reported. All patients were bitten during the night and the most bites were on their toes. No complication attributed to the bite was reported. Diagnoses of rabies virus made by means of immunofluorescence were negative. A possible reason for this outbreak may been the development of mining areas, with the inhabitants providing an alternative food source for the bats.

  11. Traumatic Amputation of Finger From an Alligator Snapping Turtle Bite.

    Science.gov (United States)

    Johnson, Robert D; Nielsen, Cynthia L

    2016-06-01

    Legend states that the alligator snapping turtle (Macrochelys temminckii) should be handled with extreme caution as it has jaw strength powerful enough to bite a wooden broomstick in half. Tales of bite injuries from what is the largest freshwater turtle in North America exist anecdotally, yet there are few descriptions of medical encounters for such. The risk of infection from reptilian bites to the hand in an aquatic environment warrants thorough antibiotic treatment in conjunction with hand surgery consultation. We present the first case report of a near total amputation of an index finger in an adolescent boy who had been bitten by a wild "gator snapper." PMID:27116923

  12. Outbreak of vampire bat biting in a Venezuelan village

    Directory of Open Access Journals (Sweden)

    Alejandro J. Caraballo H.

    1996-10-01

    Full Text Available An outbreak of 154 cases of vampire bat biting in a four-month period in the gold mine of Payapal, a Venezuelan village, is reported. All patients were bitten during the night and the most bites were on their toes. No complication attributed to the bite was reported. Diagnoses of rabies virus made by means of immunofluorescence were negative. A possible reason for this outbreak may been the development of mining areas, with the inhabitants providing an alternative food source for the bats.

  13. Bite-to-hospital time and morbidity in victims of viper bite in a rural hospital in Nigeria

    Directory of Open Access Journals (Sweden)

    Oluwagbenga Ogunfowokan

    2012-06-01

    Full Text Available Background: Mortality amongst in-hospital patients bitten by carpet viper in northern Nigeria has reduced, related to use of a monospecific ovine Fab snake antivenom. However, many victims survive with temporary or permanent morbidity.Objectives: Study objectives were to: (1 determine and score the morbidity caused by carpet viper bite; and (2 find the relationship between bite-to-hospital time and morbidity amongst victims of carpet viper bite.Method: A prospective study was conducted in a rural hospital in north-central Nigeria. The morbidities scored were oedema, tenderness, prolonged whole-blood clotting time, blister, ulcer, need for blood transfusion, coma, hypotension, convulsion, length of hospital stay, need for disarticulation, and need for skin graft. A score of one was given to each objective sign. The bite-to-hospital time of 233 subjects was obtained. Descriptive and inferential statistical analysis was done.Results: Most of the subjects (150 or 64% came to the hospital within 6 hours of the snake bite, with 2 (1% arriving within 1 hour. The median bite-to-hospital time was 5 hours, with a range of 0.5–216 hours. Major morbidities were oedema, seen in 212 (91.0%; 95% CI 86.6–94.3%; incoagulable blood, seen in 205 (88%; 95% CI 83.1–91.9%, and tenderness, seen in 201 (86.3%; 95% CI 81.2–90.4%. The mean morbidity score was 8 ± 4. For every unit increase in logged bite-to-hospital time, the morbidity score increased by 1.85 (p < 0.001.Conclusion: Morbidity caused by carpet viper bite is high in Zamko, north-central Nigeria, and correlates with increasing bite-to-hospital time.

  14. Bite-to-hospital time and morbidity in victims of viper bite in a rural hospital in Nigeria

    Directory of Open Access Journals (Sweden)

    Oluwagbenga Ogunfowokan

    2012-02-01

    Full Text Available Background: Mortality amongst in-hospital patients bitten by carpet viper in northern Nigeria has reduced, related to use of a monospecific ovine Fab snake antivenom. However, many victims survive with temporary or permanent morbidity. Objectives: Study objectives were to: (1 determine and score the morbidity caused by carpet viper bite; and (2 find the relationship between bite-to-hospital time and morbidity amongst victims of carpet viper bite.Method: A prospective study was conducted in a rural hospital in north-central Nigeria. The morbidities scored were oedema, tenderness, prolonged whole-blood clotting time, blister, ulcer, need for blood transfusion, coma, hypotension, convulsion, length of hospital stay, need for disarticulation, and need for skin graft. A score of one was given to each objective sign. The bite-to-hospital time of 233 subjects was obtained. Descriptive and inferential statistical analysis was done.Results: Most of the subjects (150 or 64% came to the hospital within 6 hours of the snake bite, with 2 (1% arriving within 1 hour. The median bite-to-hospital time was 5 hours, with a range of 0.5–216 hours. Major morbidities were oedema, seen in 212 (91.0%; 95% CI 86.6–94.3%; incoagulable blood, seen in 205 (88%; 95% CI 83.1–91.9%, and tenderness, seen in 201 (86.3%; 95% CI 81.2–90.4%. The mean morbidity score was 8 ± 4. For every unit increase in logged bite-to-hospital time, the morbidity score increased by 1.85 (p < 0.001.Conclusion: Morbidity caused by carpet viper bite is high in Zamko, north-central Nigeria, and correlates with increasing bite-to-hospital time.

  15. Progression of Diabetic Capillary Occlusion: A Model.

    Directory of Open Access Journals (Sweden)

    Xiao Fu

    2016-06-01

    Full Text Available An explanatory computational model is developed of the contiguous areas of retinal capillary loss which play a large role in diabetic maculapathy and diabetic retinal neovascularization. Strictly random leukocyte mediated capillary occlusion cannot explain the occurrence of large contiguous areas of retinal ischemia. Therefore occlusion of an individual capillary must increase the probability of occlusion of surrounding capillaries. A retinal perifoveal vascular sector as well as a peripheral retinal capillary network and a deleted hexagonal capillary network are modelled using Compucell3D. The perifoveal modelling produces a pattern of spreading capillary loss with associated macular edema. In the peripheral network, spreading ischemia results from the progressive loss of the ladder capillaries which connect peripheral arterioles and venules. System blood flow was elevated in the macular model before a later reduction in flow in cases with progression of capillary occlusions. Simulations differing only in initial vascular network structures but with identical dynamics for oxygen, growth factors and vascular occlusions, replicate key clinical observations of ischemia and macular edema in the posterior pole and ischemia in the retinal periphery. The simulation results also seem consistent with quantitative data on macular blood flow and qualitative data on venous oxygenation. One computational model applied to distinct capillary networks in different retinal regions yielded results comparable to clinical observations in those regions.

  16. A survey of occlusion detection method for visual object

    Institute of Scientific and Technical Information of China (English)

    张世辉

    2016-01-01

    Occlusion problem is one of the challenging issues in vision field for a long time , and the occlu-sion phenomenon of visual object will be involved in many vision research fields .Once the occlusion occurs in a visual system , it will affect the effects of object recognition , tracking, observation and operation , so detecting occlusion autonomously should be one of the abilities for an intelligent vision system .The research on occlusion detection method for visual object has increasingly attracted atten-tions of scholars .First, the definition and classification of the occlusion problem are presented . Then, the characteristics and deficiencies of the occlusion detection methods based on the intensity image and the depth image are analyzed respectively , and the existing occlusion detection methods are compared.Finally, the problems of existing occlusion detection methods and possible research directions are pointed out .

  17. Behavioural and Brain Gene Expression Profiling in Pigs during Tail Biting Outbreaks - Evidence of a Tail Biting Resistant Phenotype

    OpenAIRE

    Emma Brunberg; Per Jensen; Anders Isaksson; Keeling, Linda J.

    2013-01-01

    Abnormal tail biting behaviour is a major welfare problem for pigs receiving the behaviour, as well as an indication of decreased welfare in the pigs performing it. However, not all pigs in a pen perform or receive tail biting behaviour and it has recently been shown that these ‘neutral’ pigs not only differ in their behaviour, but also in their gene expression compared to performers and receivers of tail biting in the same pen. To investigate whether this difference was linked to the cause o...

  18. Comparison of the bite mark pattern and intercanine distance between humans and dogs

    OpenAIRE

    Bina Kashyap; Sanjeev Anand; Sudhakara Reddy; Shruthi Basavaradhya Sahukar; Naga Supriya; Swetha Pasupuleti

    2015-01-01

    Background: Bite marks show uniqueness due to specific characteristics and arrangement of teeth, but when it comes to bite mark analysis, it is complicated by numerous factors such as animal bite, abuse etc., Humans and pet animals (dog) bite marks analysis is by far the most demanding and complicated part of forensic dentistry. Aim: To analyze and compare bite marks of humans and the pet animals (dog) using indirect method, so as to assess its usefulness and application in forensic odontolog...

  19. Bug bites and stings: When to see a dermatologist

    Medline Plus

    Full Text Available ... hair, and nail care Skin care Hair care / hair loss Injured skin Nail care Younger skin Kids’ zone ... hair, and nail care Skin care Hair care / hair loss Injured skin Blisters Bug bites and stings Frostbite ...

  20. Insect Repellents: Protect Your Child from Insect Bites

    Science.gov (United States)

    ... Text Size Email Print Share Choosing an Insect Repellent for Your Child Page Content Article Body Mosquitoes , ... protect your child from insect bites. Types of Repellents Insect repellents come in many forms, including aerosols, ...

  1. "Fight-bite": not just a hand problem.

    Science.gov (United States)

    Cook, C P T Jay B; Knox, Maj Jeffrey B; Wimberly, Robert L; Ellis, Henry B; Riccio, Anthony I

    2014-09-01

    Human bite wounds around the knee are rarely seen, yet may require the same urgent attention as a fight bite to the hand. Two cases of polymicrobial septic arthritis of the knee secondary to a human bite wound are described. In both the cases, the diagnosis of the septic arthritis was delayed because the intra-articular wound was unrecognized. The injuries were initially deemed superficial and managed with local wound care. In each case, the knee was flexed at the time of injury and the quadriceps tendon was penetrated by a tooth which inoculated the knee joint. Septic arthritis of the knee presented, in both cases, 72 hours after the injury. These infections proved challenging to treat and required multiple surgeries and prolonged antibiotic therapy. The "fight bite" phenomenon of the hand is widely recognized and the same phenomenon can occur at the knee.

  2. The salivary secretome of the biting midge, Culicoides sonorensis

    Science.gov (United States)

    Culicoides biting midges (Diptera: Ceratopogonidae) are hematophagous insects with over 1400 species distributed throughout the world. Many of these species are of particular agricultural importance as primary vectors of bluetongue, epizootic hemorrhagic disease and Schmallenberg viruses. Detailed s...

  3. Dog bites - are vets missing an educational opportunity?

    Science.gov (United States)

    Mannion, C J; Greenberg, D

    2016-05-21

    Veterinary surgeons have a key role to play in tackling the public health problem of dog bites, say CHRISTOPHER MANNION: and DANIELLE GREENBERG: , who argue that a multiprofessional approach to the problem is needed. PMID:27199048

  4. Tick Talk: Block Tick Bites and Lyme Disease

    Science.gov (United States)

    ... External link, please review our exit disclaimer . Subscribe Tick Talk Block Tick Bites and Lyme Disease When warm weather arrives, ... to protect yourself and your loved ones from ticks that often lurk in tall grass, thick brush, ...

  5. Two cases of viper bite: still an important health problem

    Directory of Open Access Journals (Sweden)

    Adrija Hajra

    2016-04-01

    Full Text Available Viper venoms act mainly as hemotoxic. Manifestations of snakebites depend on specific toxins that constitute the venom. The local and systemic snake bite related symptoms are directly linked to the toxicity of the venom. Edema, ecchymoses, hematoma, and gangrenous lesions are reported to occur as local symptoms. Systemic symptoms may include fever, nausea, vomiting, delirium, jaundice, circulatory collapse, convulsions, and coma. Death from secondary infections, neurotoxicity, disseminated intravascular coagulation (DIC, intracranial hemorrhage, and acute renal failure are the well-known facts. For reduction of morbidity and mortality, it is important that antiserum is administered at the appropriate dose as early as possible after snake bite. There are several case reports about various complications of viperid bite. Here we are discussing two cases of viper bite. These cases are unique because of the extensive tissue necrosis. One of them succumbed to septicemia after acute pancreatitis. [Int J Res Med Sci 2016; 4(4.000: 1274-1277

  6. Cerebral infarction: an unusual manifestation of viper snake bite

    Directory of Open Access Journals (Sweden)

    Jyotirmoy Pal

    2014-06-01

    Full Text Available Snake envenomation causes significant mortality and morbidity. Viper bite usually present with local cellulites, renal failure and bleeding disorders. Thrombotic manifestation of snake bite is rarely reported and early administration of Anti-Snake Venom Serum (ASV also reduces the risk of thrombotic complications. Cerebral infarction in case of viper bite may be due to hypotension, hypercoagulability or direct action of venom on vessel wall. We report a rare case of viper bite, presented with renal failure and cerebral infarction in spite of early ASV institution. The thrombotic manifestation in this case was possibly due to disseminated intravascular coagulation. [Int J Res Med Sci 2014; 2(3.000: 1180-1183

  7. Bug bites and stings: When to see a dermatologist

    Medline Plus

    Full Text Available ... nail care Injured skin Bug bites and stings public SPOT Skin Cancer™ Diseases and treatments Skin, hair, ... Member resources Practice Tools Education Meetings & events Advocacy Public & patients AAD Resources For: Dermatologists in the US ...

  8. Posterior circulation revascularization to manage vertebrobasilar occlusion

    Directory of Open Access Journals (Sweden)

    SHANG Yan-guo

    2012-06-01

    Full Text Available Objective To discuss the technique and effect of posterior circulation revascularization to manage vertebrobasilar occlusion. Methods Nine patients with vertebrobasilar occlusion were treated by using occipital artery-posterior inferior cerebellar artery bypass, superficial temporal artery-superior cerebellar artery bypass, superficial temporal artery-posterior cerebral artery bypass and occipital artery-vertebral artery bypass with radial artery graft. Results Intraoperative indocyanine green angiography showed all the bypass arteries were patent. Postoperative DSA or CTA showed bypass arteries patent in 8 patients, among whom seven patients got obvious improvement on MR or CT perfusion. One patient died of heart failure on the 15th day postoperative. During the follow-up of eight patients, no stroke reoccurred, four patients got back to nearly normal life. Conclusion Most of the patients with vertebrobasilar occlusion could benefit from the posterior circulation revascularization, which should be confirmed by randomized controlled clinical trials in the future.

  9. Habitual biting of oral mucosa: A conservative treatment approach

    Directory of Open Access Journals (Sweden)

    Sarabjot Kaur Bhatia

    2013-01-01

    Full Text Available Chronic biting of oral mucosa is an innocuous self inflicted injury, commonly seen in children suffering from developmental and psychological problems and has rarely been reported in normal unaffected individuals. The management strategies vary from counseling, prescription of sedatives to different prosthetic shields. The paper highlights the efficacy of a simple approach using soft mouth guard in the management of self inflicted lesions due to habitual biting of oral mucosa in two normal healthy children.

  10. Acute Generalized Exanthematous Pustulosis Due to Insect Bites?

    OpenAIRE

    Bhat, Yasmeen J; Iffat Hassan; Peerzada Sajad; Atiya Yaseen; Rohi Wani

    2015-01-01

    Acute generalized exanthematous pustulosis is a rare severe cutaneous adverse reaction pattern that is mostly caused by the intake of drugs and rarely associated with viral infections, food allergens or toxins. Here we present the report of three patients who got admitted in our hospital for generalized pustulosis and fever after insect bites. The diagnosis of acute generalized exanthematous pustulosis was made by EuroSCAR scoring. The drug etiology was excluded and spider bite was implicated...

  11. Ward Round - Crocodile bites in Malawi: microbiology and surgical management

    OpenAIRE

    Wamisho, Biruk L; Bates, Jes; Tompkins, Marc; Islam, Raneem; Nyamulani, Noha; Ngulube, Chistopher; Mkandawire, Nyengo C

    2009-01-01

    We present a case series of 5 patients admitted over 5 months to Queen Elizabeth Central Hospital who had sustained injuries from a crocodile bite. Three patients required amputation of a limb. The severe soft tissue injury associated with a crocodile bite and the unusual normal oral flora of the crocodile create challenges in treatment. Progressive tissue destruction and haemolysis are complications of such infected wounds. An antibiotic regime is recommended that covers gram negative rods, ...

  12. Sensitivity to bites by the bedbug, Cimex lectularius.

    Science.gov (United States)

    Reinhardt, K; Kempke, D; Naylor, R A; Siva-Jothy, M T

    2009-06-01

    Bedbugs are a public health problem and can cause significant economic losses, but little is known about the effects of bites on humans. We reviewed case reports and published papers on bedbug bites to assess the empirical basis of the commonly cited figure that only approximately 80% of the population are sensitive to bedbug bites. We found the sensitivity estimate to be based on only one study carried out 80 years ago. However, this study did not account for the now well-established fact that only repeated exposure to external allergens leads to skin reactions. In our sample, 18 of 19 persons showed a skin reaction after bedbug exposure, but in most cases only after repeated controlled exposure. With repeated exposure, the latency between bite and skin reactions decreased from approximately 10 days to a few seconds. Our results are relevant for the hospitality industry, where apparently increasing infestation rates are likely to lead to an increase in the number of tourists and hotel employees exposed to bedbugs. Medical and public health professionals may expect to see an increase in the prevalence of people with bedbug bite sensitivity. The significance of the delayed reaction time of skin to bites may also have implications in litigation cases where people seek compensation. PMID:19292820

  13. Common Carotid Artery Occlusion: A Case Series

    OpenAIRE

    Zoltán Bajkó; Rodica Bălaşa; Anca Moţăţăianu; Smaranda Maier; Octavia Claudia Chebuţ; Szabolcs Szatmári

    2013-01-01

    Subjects and Methods. We analysed 5000 cerebrovascular ultrasound records. A total of 0.4% of the patients had common carotid artery occlusion (CCAO). Results. The mean age was 59.8 ± 14.2 years, and the male/female ratio was 2.33. The most frequent risk factors were hypertension, ischaemic heart disease, dyslipidemia, diabetes mellitus, and smoking. Right-sided and left-sided CCAO occurred in 65% and 30% of the cases, respectively, and bilateral occlusion was detected in one case (5%). Paten...

  14. Metabolic syndrome and central retinal artery occlusion

    OpenAIRE

    Kosanović-Jaković Natalija; Petrović Lidija; Risimić Dijana; Milenković Svetislav; Matić Danica

    2005-01-01

    Background. The accumulation of risk factors for central retinal artery occlusion can be seen in a single person and might be explained by the metabolic syndrome. Case report. We presented the case of a 52-year-old man with no light perception in his right eye. The visual loss was monocular and painless, fundoscopy showed central retinal artery occlusion and the laboratory investigation showed the raised erythrocyte sedimentation rate of 105 mm/h and the raised C-reactive protein of 22 mg/l. ...

  15. [The dental and skeletal effects of the jumping-the-bite plate and high-pull headgear combination. A clinical study of treated patients].

    Science.gov (United States)

    Wichelhaus, A; Sander, F G

    1995-07-01

    While planning treatment of the 30 patients with a dental and skeletal class II anomaly on which this study is based, the primary treatment goals were correction of the dental and skeletal structures and attenuation of vertical growth by means of influencing the maxillary skeletal structures and the resultant mandibular reaction. The desired treatment results were achieved in all patients. Even so, however, the effects on individual patients in respect to skeletal influences were markedly different. It was especially helpful that during therapy simultaneously with exerting influence on the maxillary base plane, the influencing of the occlusal plane occurred in the same direction. Through the additional application of high-pull headgear, maxillary growth was clearly restrained and the inclination of the maxillary base plane inhibited. Even difficult skeletal discrepancies, sagittal as well as vertical, can be treated with the bite-jump appliance in combination with a high-pull headgear. This also makes it possible to achieve protrusive repositioning of the mandible in patients with a pronounced vertical growth pattern without causing on open bite. In retrospective the patients' treatment plans proved to be completely appropriate, however, the fact should not be overlooked that changing the occlusal plane is essential for the realization of a positive therapeutic result.

  16. Maximum bite force at age 70 years predicts all-cause mortality during the following 13 years in Japanese men.

    Science.gov (United States)

    Iwasaki, M; Yoshihara, A; Sato, N; Sato, M; Taylor, G W; Ansai, T; Ono, T; Miyazaki, H

    2016-08-01

    There is limited information on the impact of oral function on mortality among older adults. The aim of this prospective cohort study was to examine whether an objective measure of oral function, maximum bite force (MBF), is associated with mortality in older adults during a 13-year follow-up period. Five hundred and fifty-nine community-dwelling Japanese (282 men and 277 women) aged 70 years at baseline were included in the study. Medical and dental examinations and a questionnaire survey were conducted at baseline. Maximum bite force was measured using an electronic recording device (Occlusal Force-Meter GM10). Follow-up investigation to ascertain vital status was conducted 13 years after baseline examinations. Survival rates among MBF tertiles were compared using Cox proportional hazards regression models stratified by sex. There were a total of 111 deaths (82 events for men and 29 for women). Univariable analysis revealed that male participants in the lower MBF tertile had increased risk of all-cause mortality [hazard ratio (HR) = 1·94, 95% confidence interval (CI) = 1·13-3·34] compared with those in the upper MBF tertile. This association remained significant after adjustment for confounders (adjusted HR = 1·84, 95% CI = 1·07-3·19). Conversely, no association between MBF and all-cause mortality was observed in female participants. Maximum bite force was independently associated with all-cause mortality in older Japanese male adults. These data provide additional evidence for the association between oral function and geriatric health. PMID:27084614

  17. A rare case of multiple rattlesnake bites.

    Science.gov (United States)

    Iliev, Yanko T; Kristeva, Sasha A; Prancheva, Maria G

    2013-01-01

    The rattlesnake (Crotalus adamanteus) is a venomous viper inhabiting the southeastern parts of the United States. It is not found in the Balkans and Europe habitats. Subjects of the species are grown and seen in museums, exhibitions and terrariums, and sometimes in private collections. This may generate potentially toxic exposures to the venom in accidental contact. Acute poisoning with rattlesnake poison in Bulgaria is exotic, rare and even casuistic. The venom of the rattlesnake exhibits neuropathic, proteolytic and hemolytic activities. Antivenom is not currently easily available in Bulgaria--it is not usually stored in hospitals because it is very rarely used and therefore rather expensive. We present a case of multiple envenomation (two different occasions) of one and the same person who kept rattlesnakes in a private terrarium. Local toxic syndrome was observed with burning and stinging pain at bite site combined with limited hemorrhage and necrosis. The hemolytic reaction and the local toxic results were successfully managed without resorting to any specific antidotal therapy.

  18. An urban Northeastern United States alligator bite.

    Science.gov (United States)

    Shepherd, Suzanne Moore; Shoff, William H

    2014-05-01

    Individuals who live and work in the Southeastern coastal range of the 3 US crocodilian carnivores, American alligators, American crocodiles, and caiman, understand the risks of reptile-human encounters. Individuals who live in other parts of the country maybe exposed through contact with exotic pets at private homes, small menageries, or petting zoos or from escaped or abandoned animals. During these encounters, individuals may be severely injured.Emergency medical services, law enforcement, and animal welfare workers in nonhabitat areas are usually not trained in the handling and safe removal of injured individuals from the scene when the reptile is present. The emergency management of large crocodilian injuries is similar to that of other major trauma; however, providers also must take into consideration the significant crush component potentially inflicted by the tremendous bite power and shaking inflicting during attacks by these large reptiles, appropriate antibiotic coverage for less common organisms that inhabit their mouths, and management of possible psychological distress, including posttraumatic stress disorder produced by such an unusual attack. Emergency physicians should support the development of a readily available national database of scientifically collect information on attacks to inform appropriate care and support efforts to explore responsible measures that the USDA Animal and Plant Health Inspection Service and other appropriate local, state, and federal agencies can take to ensure ethical and biologically sustainable management of our large reptiles, which also helps to ensure the safety of the public. PMID:24332253

  19. Otorrhagia bleeding due to leech bite

    Directory of Open Access Journals (Sweden)

    Narges Askari

    2012-01-01

    Full Text Available Leeches are blood-sucking hermaphroditic parasites that attach to vertebrate hosts, bite through the skin, and suck out blood. When leeches feed, they secrete an anticoagulant (hirudin, which helps them get a full meal of blood. This is the first report of leech removal from external auditory canal. Previous leech involvement cases were explained in nasopharynx, larynx, pharynx, eye, and gastrointestinal tract. Prominent sign of all cases was active bleeding from the leech attachment site; that stopped with leech removal. A 24-year-old man was presented to Al-Zahra hospital with left otorrhagia and otalgia from 2 days ago. After suction of ear a small soft foreign body was seen in the external ear near the tympanic membrane, then the ear filled with glycerine phenice, the patient explained decreased movement of foreign body. Four hours later the bloody discharge stopped and otalgia decreased. After suction of clots, a leech was extruded from external auditory canal by alligator. Leech infestation is a rare cause of otorrhagia and should be suspected in the endemic region in all of unusual bleeding; it can be diagnosed and treated by exact inspection and removal.

  20. Occlusal Caries: Biological Approach for Its Diagnosis and Management

    DEFF Research Database (Denmark)

    Christina Carvalho, Joana; Dige, Irene; Machiulskiene, Vita;

    2016-01-01

    process on occlusal surfaces. In addition, it considers the whole spectrum of the caries process on occlusal surfaces, ranging from the molecular ecology of occlusal biofilms to the management of deep occlusal caries lesions. Studies using molecular methods with focus on biofilms in relation to occlusal...... caries should explore the relationship between the function and the structural composition of these biofilms to understand the role of occlusal biofilms in caries development. State-of-the-art measures to evaluate risk for occlusal caries lesion activity, caries incidence, and progression should include...... the assessment of the occlusal biofilm and the stage of tooth eruption. Careful clinical examination of non-cavitated lesions, including assessment of the lesion activity status, remains the major tool to determine the immediate treatment need and to follow on the non-operative treatment outcome. Even medium...

  1. Genetics Home Reference: pulmonary veno-occlusive disease

    Science.gov (United States)

    ... Understand Genetics Home Health Conditions pulmonary veno-occlusive disease pulmonary veno-occlusive disease Enable Javascript to view the ... Disease Control and Prevention: Pulmonary Hypertension Fact Sheet Disease InfoSearch: Pulmonary venoocclusive ... pulmonary venoocclusive disease Orphanet: Pulmonary ...

  2. Virtual occlusion in planning orthognathic surgical procedures.

    NARCIS (Netherlands)

    Nadjmi, N.; Mollemans, W.; Daelemans, A.; Hemelen, G. Van; Schutyser, F.A.C.; Berge, S.J.

    2010-01-01

    Accurate preoperative planning is mandatory for orthognathic surgery. One of the most important aims of this planning process is obtaining good postoperative dental occlusion. Recently, 3D image-based planning systems have been introduced that enable a surgeon to define different osteotomy planes pr

  3. Virtual occlusal definition for orthognathic surgery.

    Science.gov (United States)

    Liu, X J; Li, Q Q; Zhang, Z; Li, T T; Xie, Z; Zhang, Y

    2016-03-01

    Computer-assisted surgical simulation is being used increasingly in orthognathic surgery. However, occlusal definition is still undertaken using model surgery with subsequent digitization via surface scanning or cone beam computed tomography. A software tool has been developed and a workflow set up in order to achieve a virtual occlusal definition. The results of a validation study carried out on 60 models of normal occlusion are presented. Inter- and intra-user correlation tests were used to investigate the reproducibility of the manual setting point procedure. The errors between the virtually set positions (test) and the digitized manually set positions (gold standard) were compared. The consistency in virtual set positions performed by three individual users was investigated by one way analysis of variance test. Inter- and intra-observer correlation coefficients for manual setting points were all greater than 0.95. Overall, the median error between the test and the gold standard positions was 1.06mm. Errors did not differ among teeth (F=0.371, P>0.05). The errors were not significantly different from 1mm (P>0.05). There were no significant differences in the errors made by the three independent users (P>0.05). In conclusion, this workflow for virtual occlusal definition was found to be reliable and accurate.

  4. Crossing Total Occlusions: Navigating Towards Recanalization

    NARCIS (Netherlands)

    A. Sakes (Aimée); E.S. Regar (Eveline); J. Dankelman (Jenny); P. Breedveld (Paul)

    2016-01-01

    textabstractChronic total occlusions (CTOs) represent the “last frontier” of percutaneous interventions. The main technical challenges lies in crossing the guidewire into the distal true lumen, which is primarily due to three problems: device buckling during initial puncture, inadequate visualizatio

  5. Crossing Total Occlusions: Navigating Towards Recanalization

    NARCIS (Netherlands)

    Sakes, A.; Regar, E.; Dankelman, J; Breedveld, P.

    2016-01-01

    Chronic total occlusions (CTOs) represent the “last frontier” of percutaneous interventions. The main technical challenges lies in crossing the guidewire into the distal true lumen, which is primarily due to three problems: device buckling during initial puncture, inadequate visualization, and the i

  6. Cilioretinal artery occlusion following intranasal cocaine insufflations

    Directory of Open Access Journals (Sweden)

    Balaji Kannan

    2011-01-01

    Full Text Available Cocaine is used to produce a euphoric effect by abusers, who may be unaware of the devastating systemic and ocular side effects of this drug. We describe the first known case of cilioretinal artery occlusion after intranasal cocaine abuse.

  7. Class II malocclusion occlusal severity description

    Directory of Open Access Journals (Sweden)

    Guilherme Janson

    2010-08-01

    Full Text Available OBJECTIVES: It is well known that the efficacy and the efficiency of a Class II malocclusion treatment are aspects closely related to the severity of the dental anteroposterior discrepancy. Even though, sample selection based on cephalometric variables without considering the severity of the occlusal anteroposterior discrepancy is still common in current papers. In some of them, when occlusal parameters are chosen, the severity is often neglected. The purpose of this study is to verify the importance given to the classification of Class II malocclusion, based on the criteria used for sample selection in a great number of papers published in the orthodontic journal with the highest impact factor. MATERIAL AND METHODS: A search was performed in PubMed database for full-text research papers referencing Class II malocclusion in the history of the American Journal of Orthodontics and Dentofacial Orthopedics (AJO-DO. RESULTS: A total of 359 papers were retrieved, among which only 72 (20.06% papers described the occlusal severity of the Class II malocclusion sample. In the other 287 (79.94% papers that did not specify the anteroposterior discrepancy severity, description was considered to be crucial in 159 (55.40% of them. CONCLUSIONS: Omission in describing the occlusal severity demands a cautious interpretation of 44.29% of the papers retrieved in this study.

  8. Clinical Practice Guidelines for intestinal occlusion.

    OpenAIRE

    Rudis Miguel Monzón Rodríguez; Carlos Jaime Geroy Gómez; Francisco García Valdéz; Jorge Luis Ulloa Capestany; Maribel Misas Menéndez

    2009-01-01

    Clinical Practice Guidelines for intestinal occlusion. This document includes the main aspects related with classification, physiopathology, clinical diagnosis, complementary examinations and therapy aimed at the post-operatory treatment. It includes assessment guidelines focused on the most important aspects to be accomplished.

  9. Virtual occlusal definition for orthognathic surgery.

    Science.gov (United States)

    Liu, X J; Li, Q Q; Zhang, Z; Li, T T; Xie, Z; Zhang, Y

    2016-03-01

    Computer-assisted surgical simulation is being used increasingly in orthognathic surgery. However, occlusal definition is still undertaken using model surgery with subsequent digitization via surface scanning or cone beam computed tomography. A software tool has been developed and a workflow set up in order to achieve a virtual occlusal definition. The results of a validation study carried out on 60 models of normal occlusion are presented. Inter- and intra-user correlation tests were used to investigate the reproducibility of the manual setting point procedure. The errors between the virtually set positions (test) and the digitized manually set positions (gold standard) were compared. The consistency in virtual set positions performed by three individual users was investigated by one way analysis of variance test. Inter- and intra-observer correlation coefficients for manual setting points were all greater than 0.95. Overall, the median error between the test and the gold standard positions was 1.06mm. Errors did not differ among teeth (F=0.371, P>0.05). The errors were not significantly different from 1mm (P>0.05). There were no significant differences in the errors made by the three independent users (P>0.05). In conclusion, this workflow for virtual occlusal definition was found to be reliable and accurate. PMID:26701322

  10. Different Occlusal Schemes in a Persistent Protruding Complete Denture Wearer

    OpenAIRE

    Carolina Mayumi Iegami; Danilo de Melo Lopes; Atlas Edson Moleros Nakamae; Priscila Nakasone Uehara; Regina Tamaki

    2016-01-01

    Different types of artificial teeth and occlusal designs can be used in complete dentures. Bilateral balanced occlusion, lingualized occlusion, canine guidance, and monoplane are the main occlusal designs; however there is no agreement on which tooth arrangement is ideal for achieving success in complete dentures. This report presents an alternative for persistent involuntary protruding complete denture wearers through the use of artificial teeth with higher cusps. Due to an old and worn pair...

  11. Longitudinal occlusal changes from primary to permanent dentition in children with normal primary occlusion.

    Science.gov (United States)

    Legovic, M; Mady, L

    1999-06-01

    This purpose of this research was to examine the stability of normal occlusion during the transition from primary to permanent dentition. The sample consisted of 128 children (83 boys and 45 girls) 4.5 to 5.5 years old with normal occlusion in the primary dentition. The subjects were reexamined at 12.5 to 13.5 years. None had received orthodontic treatment. Although all the subjects had normal occlusion in the primary dentition, 72.7% (73.5% boys and 71.1% girls) had developed anomalies following eruption of the permanent teeth. These anomalies included crowding, Class II Division 1 or Class II Division 2 malocclusion, mesial occlusion complex, lateral crossbite, anterior crossbite, premature tooth loss, openbite or other anomalies.

  12. Conservative treatment for a growing patient with a severe, developing skeletal Class III malocclusion and open bite.

    Science.gov (United States)

    Xu, Yue; Zhu, Ping; Le, Linda; Cai, Bin

    2014-06-01

    An 8-year-old Chinese girl sought treatment for a severe skeletal Class III malocclusion and open-bite skeletal pattern. Traditionally, patients with a skeletal Class III malocclusion are treated after they have stopped growing, and then they are treated with a combined orthodontic and orthognathic surgery approach. But the risks and expenses of this treatment plan are not acceptable to all patients. This young patient was treated with facemask therapy, a maxillary expansion device, and a molar occlusal splint for maxillary developmental stimulation with control of vertical jaw growth. After the completion of orthopedic therapy, 2 × 4 technology was used to adjust molar positions. A bonded tongue crib was used in the early permanent dentition to help the patient break her bad tongue habits. Straight-wire appliances were used for 16 months to adjust the occlusal relationship. This achieved significant improvement in anterior tooth relationships and facial profile esthetics. At the 2-year posttreatment follow-up, the results were satisfactory. The success of the sagittal relationship correction between the maxilla and the mandible for a skeletal Class III malocclusion depends on the coordination of transverse and vertical relationships combined with the growth potential of each patient.

  13. A clinical and epidemiological study on spider bites in Turkey

    Institute of Scientific and Technical Information of China (English)

    Yildirim Cesaretli; Ozcan Ozkan

    2011-01-01

    Objective:To classify and characterize spider bites among inquiries to the National Poison Information Center (NPIC) between1995 and2004, in terms of the epidemiology and clinical symptomatology.Methods: Clinical and epidemiological data were obtained from theNPIC’s patient records. The following information was recorded for each spider bite: demographics, circumstances of the bite, and local and systemic effects.Results: A total of82 cases were reported. The accidents were mostly seen during August. The gender distribution was59.76%male, 37.20% female, and2.44% unknown and the20-29 age group presented more spider bites. Most of the cases were in the Central Anatolia, Marmara, Mediterranean, and Black Sea regions. Local symptoms were observed in60.87% of the cases, including local pain, edema, redness, itching, debris, burning, and numbness. Systemic symptoms were observed such as nausea, vomiting, abdominal pain, lethargy, anxiety, weakness, somnolence, dyspnea, hypertension, hypotension, and hyperthermia.Conclusions: In conclusion, these findings emphasize the presence of medically important spider species in Turkey. All patients and especially pediatric patients should be admitted to the hospital. Identification of spider species may be considered a useful clinical and epidemiological tool in determining the incidence and risk of spider bites.

  14. Occlusion Handling in Videos Object Tracking: A Survey

    Science.gov (United States)

    Lee, B. Y.; Liew, L. H.; Cheah, W. S.; Wang, Y. C.

    2014-02-01

    Object tracking in video has been an active research since for decades. This interest is motivated by numerous applications, such as surveillance, human-computer interaction, and sports event monitoring. Many challenges related to tracking objects still remain, this can arise due to abrupt object motion, changing appearance patterns of objects and the scene, non-rigid object structures and most significant are occlusion of tracked object be it object-to-object or object-to-scene occlusions. Generally, occlusion in object tracking occur under three situations: self-occlusion, inter-object occlusion by background scene structure. Self-occlusion occurs most frequently while tracking articulated objects when one part of the object occludes another. Inter-object occlusion occurs when two objects being tracked occlude each other whereas occlusion by the background occurs when a structure in the background occludes the tracked objects. Typically, tracking methods handle occlusion by modelling the object motion using linear and non-linear dynamic models. The derived models will be used to continuously predicting the object location when a tracked object is occluded until the object reappears. Example of these method are Kalman filtering and Particle filtering trackers. Researchers have also utilised other features to resolved occlusion, for example, silhouette projections, colour histogram and optical flow. We will present some result from a previously conducted experiment when tracking single object using Kalman filter, Particle filter and Mean Shift trackers under various occlusion situation in this paper. We will also review various other occlusion handling methods that involved using multiple cameras. In a nutshell, the goal of this paper is to discuss in detail the problem of occlusion in object tracking and review the state of the art occlusion handling methods, classify them into different categories, and identify new trends. Moreover, we discuss the important

  15. Occlusion Handling in Videos Object Tracking: A Survey

    International Nuclear Information System (INIS)

    Object tracking in video has been an active research since for decades. This interest is motivated by numerous applications, such as surveillance, human-computer interaction, and sports event monitoring. Many challenges related to tracking objects still remain, this can arise due to abrupt object motion, changing appearance patterns of objects and the scene, non-rigid object structures and most significant are occlusion of tracked object be it object-to-object or object-to-scene occlusions. Generally, occlusion in object tracking occur under three situations: self-occlusion, inter-object occlusion by background scene structure. Self-occlusion occurs most frequently while tracking articulated objects when one part of the object occludes another. Inter-object occlusion occurs when two objects being tracked occlude each other whereas occlusion by the background occurs when a structure in the background occludes the tracked objects. Typically, tracking methods handle occlusion by modelling the object motion using linear and non-linear dynamic models. The derived models will be used to continuously predicting the object location when a tracked object is occluded until the object reappears. Example of these method are Kalman filtering and Particle filtering trackers. Researchers have also utilised other features to resolved occlusion, for example, silhouette projections, colour histogram and optical flow. We will present some result from a previously conducted experiment when tracking single object using Kalman filter, Particle filter and Mean Shift trackers under various occlusion situation in this paper. We will also review various other occlusion handling methods that involved using multiple cameras. In a nutshell, the goal of this paper is to discuss in detail the problem of occlusion in object tracking and review the state of the art occlusion handling methods, classify them into different categories, and identify new trends. Moreover, we discuss the important

  16. Factors Associated with Tick Bite Preventive Practices among Farmworkers in Malaysia.

    Directory of Open Access Journals (Sweden)

    Masoumeh Ghane Kisomi

    Full Text Available Farmworkers are at high-risk for tick bites, which potentially transmit various tick-borne diseases. Previous studies show that personal prevention against tick bites is key, and certain factors namely, knowledge, experience of tick bites, and health beliefs influence compliance with tick bites preventive behaviour. This study aimed to assess these factors and their associations with tick bite preventive practices among Malaysian farmworkers.A total of eight cattle, goat and sheep farms in six states in Peninsular Malaysia participated in a cross-sectional survey between August and October 2013.A total of 151 (72.2% out of 209 farmworkers answered the questionnaire. More than half of the farmworkers (n = 91 reported an experience of tick bites. Farms with monthly acaricide treatment had significantly (P<0.05 a low report of tick bites. Tick bite exposure rates did not differ significantly among field workers and administrative workers. The mean total knowledge score of ticks for the overall farmworkers was 13.6 (SD±3.2 from 20. The mean total tick bite preventive practices score for all farmworkers was 8.3 (SD±3.1 from 15. Fixed effect model showed the effects of four factors on tick bite prevention: (1 farms, (2 job categories (administrative workers vs. field workers, (3 perceived severity of tick bites, and (4 perceived barriers to tick bite prevention.A high proportion of farmworkers, including administrative workers, reported an experience of tick bites. The effectiveness of monthly acaricide treatment was declared by low reports of tick bites on these farms. Tick bite preventive practices were insufficient, particularly in certain farms and for administrative workers. Our findings emphasise the need to have education programmes for all farmworkers and targeting farms with low prevention practices. Education and health programmes should increase the perception of the risk of tick bites and remove perceived barriers of tick bite prevention.

  17. Factors Associated with Tick Bite Preventive Practices among Farmworkers in Malaysia

    Science.gov (United States)

    Wong, Li Ping; Tay, Sun Tee; Bulgiba, Awang; Zandi, Keivan; Kho, Kai Ling; Koh, Fui Xian; Ong, Bee Lee; Jaafar, Tariq; Hassan Nizam, Quaza Nizamuddin

    2016-01-01

    Background Farmworkers are at high-risk for tick bites, which potentially transmit various tick-borne diseases. Previous studies show that personal prevention against tick bites is key, and certain factors namely, knowledge, experience of tick bites, and health beliefs influence compliance with tick bites preventive behaviour. This study aimed to assess these factors and their associations with tick bite preventive practices among Malaysian farmworkers. Methods A total of eight cattle, goat and sheep farms in six states in Peninsular Malaysia participated in a cross-sectional survey between August and October 2013 Results A total of 151 (72.2%) out of 209 farmworkers answered the questionnaire. More than half of the farmworkers (n = 91) reported an experience of tick bites. Farms with monthly acaricide treatment had significantly (P<0.05) a low report of tick bites. Tick bite exposure rates did not differ significantly among field workers and administrative workers. The mean total knowledge score of ticks for the overall farmworkers was 13.6 (SD±3.2) from 20. The mean total tick bite preventive practices score for all farmworkers was 8.3 (SD±3.1) from 15. Fixed effect model showed the effects of four factors on tick bite prevention: (1) farms, (2) job categories (administrative workers vs. field workers), (3) perceived severity of tick bites, and (4) perceived barriers to tick bite prevention. Conclusions A high proportion of farmworkers, including administrative workers, reported an experience of tick bites. The effectiveness of monthly acaricide treatment was declared by low reports of tick bites on these farms. Tick bite preventive practices were insufficient, particularly in certain farms and for administrative workers. Our findings emphasise the need to have education programmes for all farmworkers and targeting farms with low prevention practices. Education and health programmes should increase the perception of the risk of tick bites and remove perceived

  18. Dental Occlusion Influences the Standing Balance on an Unstable Platform.

    Science.gov (United States)

    Julià-Sánchez, Sonia; Álvarez-Herms, Jesús; Gatterer, Hannes; Burtscher, Martin; Pagès, Teresa; Viscor, Ginés

    2015-10-01

    Contradictory results are still reported on the influence of dental occlusion on the balance control. We attempted to determine whether there are differences in balance between opposed dental occlusion (Intercuspal position (ICP)/"Cotton rolls" mandibular position [CR]) for two extreme levels of stability (stable/ unstable). Twenty-five subjects were monitored under both dental occlusion and level of stability conditions using an unstable platform Balance System SD. The resulting stability index suggests that body balance is significantly better when dental occlusion is set in CR (p crowding (p = .006), midline deviation (p dental occlusion for the balance control comes strongly into effect in unstable conditions. PMID:25674772

  19. 应用不同方法矫治前牙开合的临床比较%Clinical comparison of Anterior Open-bite Malocclusion treatment with different appliance

    Institute of Scientific and Technical Information of China (English)

    吴海燕; 李惠山; 刘红彦

    2014-01-01

    目的:通过直丝弓矫治,多曲方丝弓技术矫治骨性前牙开合,比较观察临床矫治效果。方法12例患者,其中合并口腔不良习惯的前牙开合6例,其它原因骨性开合6例。结果经过治疗,全部病例均达到预期的矫治效果,均建立了正常的覆盖和良好的尖窝咬牙合关系。结论临床上掌握合适的适应症,治疗开合能取得良好的效果。%Objective To investigate the clinical effects, straight arch wire and MEAW technique are applied in the treatment of Anterior Open-bite Malocclusion. Methods Among 12 patients, 6 had bad oral habits and anterior open-bite, while the other 6 had bony open-bite due to other causes. Results After treatments, all the cases achieved the expected correction effects with normal overbite, overjet and good occlusion. Conclusion can be reached that the correction of anterior open bite can achieve good treatment results by mastering appropriate indications.

  20. Behavioural and Brain Gene Expression Profiling in Pigs during Tail Biting Outbreaks - Evidence of a Tail Biting Resistant Phenotype.

    Science.gov (United States)

    Brunberg, Emma; Jensen, Per; Isaksson, Anders; Keeling, Linda J

    2013-01-01

    Abnormal tail biting behaviour is a major welfare problem for pigs receiving the behaviour, as well as an indication of decreased welfare in the pigs performing it. However, not all pigs in a pen perform or receive tail biting behaviour and it has recently been shown that these 'neutral' pigs not only differ in their behaviour, but also in their gene expression compared to performers and receivers of tail biting in the same pen. To investigate whether this difference was linked to the cause or a consequence of them not being involved in the outbreak of tail biting, behaviour and brain gene expression was compared with 'control' pigs housed in pens with no tail biting. It was shown that the pigs housed in control pens performed a wider variety of pig-directed abnormal behaviour (belly nosing 0.95±1.59, tail in mouth 0.31±0.60 and 'other' abnormal 1.53±4.26; mean±S.D) compared to the neutral pigs (belly nosing 0.30±0.62, tail in mouth 0.13±0.50 and "other" abnormal 0.42±1.06). With Affymetrix gene expression arrays, 107 transcripts were identified as differently expressed (ppigs. Several of these transcripts had already been shown to be differently expressed in the neutral pigs when they were compared to performers and receivers of tail biting in the same pen in an earlier study. Hence, the different expression of these genes cannot be a consequence of the neutral pigs not being involved in tail biting behaviour, but rather linked to the cause contributing to why they were not involved in tail biting interactions. These neutral pigs seem to have a genetic and behavioural profile that somehow contributes to them being resistant to performing or receiving pig-directed abnormal behaviour, such as tail biting, even when housed in an environment that elicits that behaviour in other pigs. PMID:23824700

  1. Behavioural and Brain Gene Expression Profiling in Pigs during Tail Biting Outbreaks - Evidence of a Tail Biting Resistant Phenotype.

    Directory of Open Access Journals (Sweden)

    Emma Brunberg

    Full Text Available Abnormal tail biting behaviour is a major welfare problem for pigs receiving the behaviour, as well as an indication of decreased welfare in the pigs performing it. However, not all pigs in a pen perform or receive tail biting behaviour and it has recently been shown that these 'neutral' pigs not only differ in their behaviour, but also in their gene expression compared to performers and receivers of tail biting in the same pen. To investigate whether this difference was linked to the cause or a consequence of them not being involved in the outbreak of tail biting, behaviour and brain gene expression was compared with 'control' pigs housed in pens with no tail biting. It was shown that the pigs housed in control pens performed a wider variety of pig-directed abnormal behaviour (belly nosing 0.95±1.59, tail in mouth 0.31±0.60 and 'other' abnormal 1.53±4.26; mean±S.D compared to the neutral pigs (belly nosing 0.30±0.62, tail in mouth 0.13±0.50 and "other" abnormal 0.42±1.06. With Affymetrix gene expression arrays, 107 transcripts were identified as differently expressed (p<0.05 between these two categories of pigs. Several of these transcripts had already been shown to be differently expressed in the neutral pigs when they were compared to performers and receivers of tail biting in the same pen in an earlier study. Hence, the different expression of these genes cannot be a consequence of the neutral pigs not being involved in tail biting behaviour, but rather linked to the cause contributing to why they were not involved in tail biting interactions. These neutral pigs seem to have a genetic and behavioural profile that somehow contributes to them being resistant to performing or receiving pig-directed abnormal behaviour, such as tail biting, even when housed in an environment that elicits that behaviour in other pigs.

  2. Concepts of occlusion in prosthodontics: A literature review, part I

    Science.gov (United States)

    Rangarajan, V.; Gajapathi, B.; Yogesh, P. B.; Ibrahim, M. Mohamed; Kumar, R. Ganesh; Karthik, Prasanna

    2015-01-01

    Occlusion and its relationship to the function of the stomatognathic system have been widely studied in dentistry since many decades. This series of articles describe about occlusion in the complete denture, fixed partial denture, and implants. Part I and II of this articles series describe concepts and philosophies of occlusion in complete denture. So far, available research has not concluded a superior tooth form or occlusal scheme to satisfy the requirements of completely edentulous patients with respect to comfort, mastication, phonetics, and esthetics. Since then, several balanced and nonbalanced articulation concepts were proposed in the literature. A balanced articulation appears to be most appropriate because of tooth contacts observed during nonfunctional activities of patients. This article discusses about evolution of different concepts of occlusion and occlusal schemes in complete denture occlusion. PMID:26929513

  3. Non-venomous snake bite and snake bite without envenoming in a Brazilian teaching hospital. Analysis of 91 cases.

    Science.gov (United States)

    Silveria, P V; Nishioka, S de A

    1992-01-01

    A retrospective survey of 473 cases of snake bite admitted to a Brazilian teaching hospital from 1984 to 1990 revealed 91 cases of bite without envenoming and/or caused by non-venomous snakes. In 17 of these cases the snake was identified, and one patient was bitten by a snake-like reptile (Amphisbaena mertensii). In 43 cases diagnosis was made on clinical grounds (fang marks in the absence of signs of envenoming). The other 30 cases were of patients who complained of being bitten but who did not show any sign of envenoming or fang mark. Most cases occurred in men (66;73%), in the 10-19 years age group (26;29%), in the lower limbs (51/74;69%), between 6 A. M. and 2 P.M. (49;61%) and in the month of April (16;18%). One patient bitten by Philodryas olfersii developed severe local pain, swelling and redness at the site of the bite, with normal clotting time. The patient bitten by Drymarcon corais was misdiagnosed as being bitten by a snake of the genus Bothrops, was given the specific antivenom, and developed anaphylaxis. One patient bitten by Sibynomorphus mikanii presented prolonged clotting time, and was also given antivenom as a case of Bothrops bite. Correct identification of venomous snakes by physicians is necessary to provide correct treatment to victims of snake bite, avoiding unnecessary distress to the patient, and overprescription of antivenom, which may eventually cause severe untoward effects. PMID:1342117

  4. Novel Low-Cost Sensor for Human Bite Force Measurement

    Directory of Open Access Journals (Sweden)

    Jarred Fastier-Wooller

    2016-08-01

    Full Text Available This paper presents the design and development of a low cost and reliable maximal voluntary bite force sensor which can be manufactured in-house by using an acrylic laser cutting machine. The sensor has been designed for ease of fabrication, assembly, calibration, and safe use. The sensor is capable of use within an hour of commencing production, allowing for rapid prototyping/modifications and practical implementation. The measured data shows a good linear relationship between the applied force and the electrical resistance of the sensor. The output signal has low drift, excellent repeatability, and a large measurable range of 0 to 700 N. A high signal-to-noise response to human bite forces was observed, indicating the high potential of the proposed sensor for human bite force measurement.

  5. Acute generalized exanthematous pustulosis associated with spider bite*

    Science.gov (United States)

    Milman, Laura de Mattos; Müller, Giana Paula; Souza, Paulo Ricardo Martins; Grill, Aline Barcellos; Rhoden, Deise Louise Bohn; Mello-da-Silva, Carlos Augusto; Vettorato, Gerson

    2016-01-01

    Acute generalized exanthematous pustulosis (AGEP) is an acute febrile rash, usually induced by drugs, which recently has been linked to spider bite. We report a case of a male patient, 48 years old, with an erythematous rash accompanied by fever and small non-follicular pustules. He reported previous pain in the buttock with the onset of a necrotic plaque. The lesion was compatible with spider bite of the genus Loxosceles. According to the EuroSCAR group instrument, the patient scored +10 indicating definite diagnosis of AGEP. As the patient had a compatible lesion and had no other triggers of AGEP, in an Loxosceles endemic area, the AGEP would be associated with spider bite, as described in other publications. PMID:27579754

  6. Kawasaki Disease with Retropharyngeal Edema following a Blackfly Bite

    Directory of Open Access Journals (Sweden)

    Toru Watanabe

    2014-01-01

    Full Text Available We describe a patient with Kawasaki disease (KD and retropharyngeal edema following a blackfly bite. An 8-year-old boy was referred to our hospital because of a 3-day-history of fever and left neck swelling and redness after a blackfly bite. Computed tomography of the neck revealed left cervical lymph nodes swelling with edema, increased density of the adjacent subcutaneous tissue layer, and low density of the retropharyngeum. The patient was initially presumed to have cervical cellulitis, lymphadenitis, and retropharyngeal abscess. He was administered antibiotics intravenously, which did not improve his condition. The patient subsequently exhibited other signs of KD and was diagnosed with KD and retropharyngeal edema. Intravenous immunoglobulin therapy and oral flurbiprofen completely resolved the symptoms and signs. A blackfly bite sometimes incites a systemic reaction in humans due to a hypersensitive reaction to salivary secretions, which may have contributed to the development of KD in our patient.

  7. Records of assassin bug species (reduviidae, heteroptera reported biting man

    Directory of Open Access Journals (Sweden)

    E.K. Hartwig

    1977-08-01

    Full Text Available In southern Africa Acanthaspis obscura Stal, Pirates conspurcatus Distant, Rhinocoris segmentarius (Germar and Panto-feistes pnnceps Stal intlict painful bites on humans. Serious consequences can develop. This is unknown to the public in general. Adult A. obscura and P. conspurcatus are responsible for the greatest number of bites because they are positively phototropic. R, segmentarius is not attracted to light but is the most common local species. Bites happen accidentally and could largely be avoided if the bugs could be recognized. The first three species have a wide distribution. Various insects are preyed on. The R. segmentarius female can lay 358 fertile eggs in six batches over a period of 77 days without copulating once in this period. Adults are most active in mid-summer although found throughout the year. These three species are abundant in some years and scarce in others. Preventive measures include screening homes and decoy lights. Control involves spraying with carbaryl.

  8. RTSAH Traversal Order for Occlusion Rays

    KAUST Repository

    Ize, Thiago

    2011-04-01

    We accelerate the finding of occluders in tree based acceleration structures, such as a packetized BVH and a single ray kd-tree, by deriving the ray termination surface area heuristic (RTSAH) cost model for traversing an occlusion ray through a tree and then using the RTSAH to determine which child node a ray should traverse first instead of the traditional choice of traversing the near node before the far node. We further extend RTSAH to handle materials that attenuate light instead of fully occluding it, so that we can avoid superfluous intersections with partially transparent objects. For scenes with high occlusion, we substantially lower the number of traversal steps and intersection tests and achieve up to 2× speedups. © 2010 The Author(s).

  9. Handling Occlusions for Robust Augmented Reality Systems

    Directory of Open Access Journals (Sweden)

    Maidi Madjid

    2010-01-01

    Full Text Available Abstract In Augmented Reality applications, the human perception is enhanced with computer-generated graphics. These graphics must be exactly registered to real objects in the scene and this requires an effective Augmented Reality system to track the user's viewpoint. In this paper, a robust tracking algorithm based on coded fiducials is presented. Square targets are identified and pose parameters are computed using a hybrid approach based on a direct method combined with the Kalman filter. An important factor for providing a robust Augmented Reality system is the correct handling of targets occlusions by real scene elements. To overcome tracking failure due to occlusions, we extend our method using an optical flow approach to track visible points and maintain virtual graphics overlaying when targets are not identified. Our proposed real-time algorithm is tested with different camera viewpoints under various image conditions and shows to be accurate and robust.

  10. Photoacoustic removal of occlusions from blood vessels

    Science.gov (United States)

    Visuri, Steven R.; Da Silva, Luiz B.; Celliers, Peter M.; London, Richard A.; Maitland, IV, Duncan J.; Esch, Victor C.

    2002-01-01

    Partial or total occlusions of fluid passages within the human body are removed by positioning an array of optical fibers in the passage and directing treatment radiation pulses along the fibers, one at a time, to generate a shock wave and hydrodynamics flows that strike and emulsify the occlusions. A preferred application is the removal of blood clots (thrombin and embolic) from small cerebral vessels to reverse the effects of an ischemic stroke. The operating parameters and techniques are chosen to minimize the amount of heating of the fragile cerebral vessel walls occurring during this photo acoustic treatment. One such technique is the optical monitoring of the existence of hydrodynamics flow generating vapor bubbles when they are expected to occur and stopping the heat generating pulses propagated along an optical fiber that is not generating such bubbles.

  11. Septic Arthritis and Concern for Osteomyelitis in a Child with Rat Bite Fever

    OpenAIRE

    Flannery, Dustin D.; Akinboyo, Ibukunoluwa; Ty, Jennifer M.; Averill, Lauren W.; Freedman, Abigail

    2013-01-01

    Rat bite fever is a rare infection usually caused by Streptobacillus moniliformis. A case of septic arthritis and possible osteomyelitis as sequelae of rat bite fever in a pediatric patient is described.

  12. Nontraumatic vascular emergencies: imaging and intervention in acute venous occlusion

    Energy Technology Data Exchange (ETDEWEB)

    Haage, Patrick; Schmitz-Rode, Thomas [Department of Diagnostic Radiology, University of Technology Aachen, Pauwelsstrasse 30, 52057 Aachen (Germany); Krings, Timo [Department of Neuroradiology, University of Technology Aachen, Pauwelsstrasse 30, 52057 Aachen (Germany)

    2002-11-01

    Risk factors for acute venous occlusion range from prolonged immobilization to hypercoagulability syndromes, trauma, and malignancy. The aim of this review article is to illustrate the different imaging options for the diagnosis of acute venous occlusion and to assess the value of interventional strategies for venous thrombosis treatment in an emergency setting. First, diagnosis and treatment of the most common form of venous occlusion, at the level of the lower extremities, is presented, followed by pelvic vein and inferior vena cava occlusion, mesenteric venous thrombosis, upper extremity occlusion, acute cerebral vein thrombosis, and finally acute venous occlusion of hemodialysis access. In acute venous occlusion of the lower extremity phlebography is still the reference gold standard. Presently, duplex ultrasound with manual compression is the most sensitive and specific noninvasive test. Limitations of ultrasonography include isolated distal calf vein occlusion, obesity, and patients with lower extremity edema. If sonography is nondiagnostic, venography should be considered. Magnetic resonance venography can differentiate an acute occlusion from chronic thrombus, but because of its high cost and limited availability, it is not yet used for the routine diagnosis of lower extremity venous occlusion only. Regarding interventional treatment, catheter-directed thrombolysis can be applied to dissolve thrombus in charily selected patients with symptomatic occlusion and no contraindications to therapy. Acute occlusion of the pelvic veins and the inferior vena cava, often due to extension from the femoropopliteal system, represents a major risk for pulmonary embolism. Color flow Doppler imaging is often limited owing to obesity and bowel gas. Venography has long been considered the gold standard for identifying proximal venous occlusion. Both CT scanning and MR imaging, however, can even more accurately diagnose acute pelvis vein or inferior vena cava occlusion. MRI is

  13. Tracking multiple mice through severe occlusions

    OpenAIRE

    Branson, Kristin

    2007-01-01

    In this thesis, I address the problem of tracking multiple identical mice through severe occlusions from video of a side of their cage. A solution to this problem would greatly benefit medical research because of the key role animal testing plays in medical research. As the majority of visual tracking algorithms are intended for tracking people or cars, they are not directly applicable to the mouse tracking problem. Mice are extremely deformable, unconstrained three-dimensional objects. They ...

  14. [Severe sepsis after dog bite caused by Capnocytophaga canimorsus].

    Science.gov (United States)

    Dobosz, Paweł; Martyna, Danuta; Stefaniuk, Elżbieta; Szczypa, Katarzyna; Hryniewicz, Waleria

    2015-10-01

    We describe a case of a life-threatening septicemia resulting from a previous dog bite wound. The isolated bacterium was Capnocytophaga canimorsus, a slow-growing Gram-negative bacillus commonly found in dog saliva. Known risk factors for invasive C. canimorsus infections are alcohol abuse, cigarette smoking, splenectomy or other forms of immunosuppression. Any clinician seeing patients with a history of a dog bite should consider this pathogen as a causative agent and take detailed history regarding exposure to animals. PMID:26608488

  15. [Snake bite in a 53-year-old female tourist].

    Science.gov (United States)

    Bertheau, S; Aghdassi, A; Otto, M; Hegenscheid, K; Runge, S; Lerch, M M; Simon, P

    2015-02-01

    Snake bites are rare events in Germany and are not life-threatening with usually only mild clinical symptoms. The most widespread venomous snake is the common European adder (Vipera berus). Here we present the case of a 53-year-old woman who was bitten by a common adder. Although the patient was initially in stable condition she developed edematous swelling of the complete lower limb, subcutaneous bleeding, and rhabdomyolysis. The aim of this report is to raise awareness that even in a central European country like Germany snake bites with a life-threatening course can occur and need immediate attention and medical care. PMID:25617003

  16. Garenoxacin in skin & skin structure infections complicated by bear bite

    Directory of Open Access Journals (Sweden)

    Pukar M, Hajare A, Krishnaprasad K, Bhargava A

    2014-04-01

    Full Text Available Animal bites have always been a common problem to humans. The incidence of resistant organisms is also increasing in the community. Garenoxacin a novel oral des-fluoroquinolone with potent antimicrobial activity against common pathogens causing skin and soft tissue infections, including resistant strains offers the benefit of broad spectrum of coverage including gram positive, gram negative and anaerobic organisms. The result of the case study indicates that garenoxacin is very effective in treating skin and soft tissue infections caused by animal bites.

  17. Dental Occlusion and Ophthalmology: A Literature Review

    Science.gov (United States)

    Marchili, Nicola; Ortu, Eleonora; Pietropaoli, Davide; Cattaneo, Ruggero; Monaco, Annalisa

    2016-01-01

    Stomatognathic system is strictly correlated to other anatomical regions; many studies investigated relationship between temporomandibular joint and posture, several articles describe cranio-facial pain from dental causes, such as trigger points. Until now less interest has been given to connections between dental occlusion and ophthalmology, even if they are important and involving. Clinical experience in dental practice claims that mandibular latero-deviation is connected both to eye dominance and to defects of ocular convergence. The trigeminal nerve is the largest and most complex of the twelve cranial nerves. The trigeminal system represents the connection between somitic structures and those derived from the branchial arches, collecting the proprioception from both somitic structures and oculomotor muscles. The intermedius nucleus of the medulla is a small perihypoglossal brainstem nucleus, which acts to integrate information from the head and neck and relays it on to the nucleus of the solitary tract where autonomic responses are generated. This intriguing neurophysiological web led our research group to investigate anatomical and functional associations between dental occlusion and vision. In conclusion, nervous system and functional pathways strictly connect vision and dental occlusion, and in the future both dentists and oculists should be more and more aware of this correlation for a better diagnosis and therapy. PMID:27733873

  18. Laser photocoagulation for retinal vein occlusion

    Directory of Open Access Journals (Sweden)

    K. A. Mirzabekova

    2015-03-01

    Full Text Available Retinal vein occlusion (RVO is one of the leading causes of permanent vision loss. In adults, central retinal vein occlusion (CRVO occurs in 1.8% while branch retinal vein occlusion (BRVO occurs in 0.2%. Treatment strategy and disease prognosis are determined by RVO type (ischemic/non-ischemic. Despite numerous studies and many current CRVO and BRVO treatment approaches, the management of these patients is still being debated. Intravitreal injections of steroids (triamcinolone acetate, dexamethasone and vascular endothelial growth factor (VEGF inhibitors (bevacizumab, ranibizumab were shown to be fairly effective. However, it is unclear whether anti-VEGF agents are reasonable in ischemic RVOs. Laser photocoagulation remains the only effective treatment of optic nerve head and/or retinal neovascularization. Laser photocoagulation is also indicated for the treatment of macular edema. Both threshold and sub-threshold photocoagulation may be performed. Photocoagulation performed with argon (514 nm, krypton (647 nm, or diode (810 nm laser for macular edema provides similar results (no significant differences. The treatment may be complex and include medication therapy and/or surgery. Medication therapy includes anti-aggregant agents and antioxidants, i.e., emoxypine which may be used in acute RVO as well as in post-thrombotic retinopathy. 

  19. Feeding biomechanics and theoretical calculations of bite force in bull sharks (Carcharhinus leucas) during ontogeny.

    Science.gov (United States)

    Habegger, Maria L; Motta, Philip J; Huber, Daniel R; Dean, Mason N

    2012-12-01

    Evaluations of bite force, either measured directly or calculated theoretically, have been used to investigate the maximum feeding performance of a wide variety of vertebrates. However, bite force studies of fishes have focused primarily on small species due to the intractable nature of large apex predators. More massive muscles can generate higher forces and many of these fishes attain immense sizes; it is unclear how much of their biting performance is driven purely by dramatic ontogenetic increases in body size versus size-specific selection for enhanced feeding performance. In this study, we investigated biting performance and feeding biomechanics of immature and mature individuals from an ontogenetic series of an apex predator, the bull shark, Carcharhinus leucas (73-285cm total length). Theoretical bite force ranged from 36 to 2128N at the most anterior bite point, and 170 to 5914N at the most posterior bite point over the ontogenetic series. Scaling patterns differed among the two age groups investigated; immature bull shark bite force scaled with positive allometry, whereas adult bite force scaled isometrically. When the bite force of C. leucas was compared to those of 12 other cartilaginous fishes, bull sharks presented the highest mass-specific bite force, greater than that of the white shark or the great hammerhead shark. A phylogenetic independent contrast analysis of anatomical and dietary variables as determinants of bite force in these 13 species indicated that the evolution of large adult bite forces in cartilaginous fishes is linked predominantly to the evolution of large body size. Multiple regressions based on mass-specific standardized contrasts suggest that the evolution of high bite forces in Chondrichthyes is further correlated with hypertrophication of the jaw adductors, increased leverage for anterior biting, and widening of the head. Lastly, we discuss the ecological significance of positive allometry in bite force as a possible

  20. Comparison of angiographic and clinical outcomes of coronary stenting of chronic total occlusions versus subtotal occlusions.

    Science.gov (United States)

    Moussa, I; Di Mario, C; Moses, J; Reimers, B; Di Francesco, L; Blengino, S; Colombo, A

    1998-01-01

    The objective of this study was to assess the short- and long-term outcome of patients undergoing coronary stenting for chronic total occlusions compared with a control patient population with nonocclusive stenoses. A total of 789 consecutive patients (1,043 lesions) underwent coronary stenting using a high-pressure stent optimization technique. The study population was divided into total occlusion group (94 consecutive patients [95 lesions] with chronic total occlusions) and subtotal occlusion group (695 consecutive patients [948 lesions] with nonocclusive stenoses). There was no difference in post-procedure angiographic minimum lumen diameter (3.13 +/- 0.48 vs 3.15 +/- 0.57 mm, p = 0.72) and minimum intrastent cross-sectional area by intravascular ultrasound (7.31 +/- 2.06 vs 7.64 +/- 2.53 mm2, p = 0.26) between the total and subtotal groups, respectively. Subacute thrombosis occurred in 2 patients (2.1%) in the total group compared with 9 patients (1.3%) in the subtotal group (p = 0.63). Angiographic restenosis occurred in 27% vs 22% (p = 0.40) and repeat angioplasty in 15% vs 13% (p = 0.62) in the total and subtotal groups, respectively. Thus, coronary stenting of chronic total occlusions after successful recanalization could be performed with a high success rate. In addition, the incidence of stent thrombosis, angiographic restenosis, and the need for target lesion revascularization is comparable to that of an unselected cohort of patients with nonocclusive stenoses.

  1. Contribution of the digastric muscles to the control of bite force in man

    NARCIS (Netherlands)

    VanWilligen, JD; Slager, GEC; Broekhuijsen, ML

    1997-01-01

    The contribution of the (co-contracting) digastric muscles to the rapid decline in bite-force magnitude after unloading of a static bite was investigated by asking participants to perform two different biting tasks with sudden unloading, and correlating the degree of co-contraction of the digastrics

  2. Relationship of Occlusal Schemes with the Occurrence of Temporomandibular Disorders

    Directory of Open Access Journals (Sweden)

    Dina H. Sugiaman

    2013-07-01

    Full Text Available Masticatory system is a complex functional unit of the body responsible for mastication, speech, and deglutition process. Temporomandibular disorders (TMD is used to describe all functional disturbances of the masticatory system. The etiology of TMD is multifactorial, such as occlusal disharmony and emotional stress. The relationship between occlusion and TMD has been highly debated in dentistry, one of the occlusal factors is the occlusal scheme. Occlusal schemes are defined as bilateral canine guidance, unilateral canine guidance, group function and balanced occlusion. However, studies about the relationship of occlusal schemes and the occurrence of the TMD are still limited and remained controversial. Objective: To investigate the relationship of occlusal schemes witht he occurrence of TMD. Methods: A cross-sectional study was conducted at the Faculty of Dentistry, Uniiversitas Indonesia. A total of 127 students were included in this study. Subjects were examined based on Clinical Helkimo Index and divided into TMD and non-TMD groups. Subjects were categorized as non-TMD groups if the value of the clinical Helkimo index was 0 and as TMD group when the value ranged between 1-25. Results: Balanced occlusion schemes has a greater risk of TMD occurrence with odds ratio value 5.6 and 95% confidence interval 1.188 to 26.331 (p=0.021. Conclusion: Balanced occlusion has a significant relationship with the occurrence of TMD.

  3. Occlusion and weight change in a patient after esophagectomy: success derived from restoration of occlusal support.

    Science.gov (United States)

    Yamanaka, Reiko; Soga, Yoshihiko; Minakuchi, Mami; Nawachi, Kumiko; Maruyama, Takayuki; Kuboki, Takuo; Morita, Manabu

    2013-01-01

    Occlusal support may be an important factor affecting nutritional support after major surgery. This report presents a patient who gained body weight after receiving a new prosthesis. The patient was an 82-year-old man with thoracic esophageal carcinoma. He did not have occlusal support because of multiple caries lesions. His body weight slowly increased after surgery, but almost stopped in the period of 54 to 68 days after surgery. After treatment with dentures (day 72 postsurgery), body weight gain was observed again, although his medical treatment had not changed. An appropriate prosthesis could contribute to perioperative nutrition support and may lead to earlier recovery after surgery. PMID:24179973

  4. Effects of bite blocks and hearing status on vowel production

    Science.gov (United States)

    Lane, Harlan; Denny, Margaret; Guenther, Frank H.; Matthies, Melanie L.; Menard, Lucie; Perkell, Joseph S.; Stockmann, Ellen; Tiede, Mark; Vick, Jennell; Zandipour, Majid

    2005-09-01

    This study explores the effects of hearing status and bite blocks on vowel production. Normal-hearing controls and postlingually deaf adults read elicitation lists of /hVd/ syllables with and without bite blocks and auditory feedback. Deaf participants' auditory feedback was provided by a cochlear prosthesis and interrupted by switching off their implant microphones. Recording sessions were held before prosthesis was provided and one month and one year after. Long-term absence of auditory feedback was associated with heightened dispersion of vowel tokens, which was inflated further by inserting bite blocks. The restoration of some hearing with prosthesis reduced dispersion. Deaf speakers' vowel spaces were reduced in size compared to controls. Insertion of bite blocks reduced them further because of the speakers' incomplete compensation. A year of prosthesis use increased vowel contrast with feedback during elicitation. These findings support the inference that models of speech production must assign a role to auditory feedback in error-based correction of feedforward commands for subsequent articulatory gestures.

  5. Bug bites and stings: When to see a dermatologist

    Medline Plus

    Full Text Available ... a rash after a bug bite, see a board-certified dermatologist immediately. FIND A FREE SPOTme® SKIN CANCER SCREENING FIND A DERMATOLOGIST Advanced Search Explore AAD Member resources Practice Tools Education Meetings & events Advocacy Public & patients AAD Resources For: ...

  6. Schmallenberg virus in Culicoides spp. biting midges, the Netherlands, 2011

    NARCIS (Netherlands)

    Elbers, A.R.W.; Meiswinkel, R.; Weezep, van E.; Sloet van Oldruitenborgh-Oosterbaan, M.M.; Kooi, E.A.

    2013-01-01

    To determine which species of Culicoides biting midges carry Schmallenberg virus (SBV), we assayed midges collected in the Netherlands during autumn 2011. SBV RNA was found in C. scoticus, C. obsoletus sensu stricto, and C. chiopterus. The high proportion of infected midges might explain the rapid s

  7. Equine insect bite hypersensitivity : Pathogenesis, diagnosis and immunomodulation

    NARCIS (Netherlands)

    Meulenbroeks, C.

    2016-01-01

    Insect bite hypersensitivity (IBH) is a seasonal allergic dermatitis primarily caused by Culicoides midges like C. obsoletus. The welfare of IBH-affected horses is compromised due to severe itch with secondary dermatitis and skin infections. Similar to most allergies, IBH can only be controlled rath

  8. Orthodontic and orthopaedic treatment for anterior open bite in children

    NARCIS (Netherlands)

    Lentini-Oliveira, D.; Carvalho, F. R.; Qingsong, Y.; Junjie, L.; Saconato, H.; Machado, M. A. C.; Prado, L. B. F.; Prado, G. F.

    2007-01-01

    Background Anterior open bite occurs when there is a lack of vertical overlap of the upper and lower incisors. The aetiology is multifactorial including: oral habits, unfavourable growth patterns, enlarged lymphatic tissue with mouth breathing. Several treatments have been proposed to correct this m

  9. Bite Block Vowel Production in Apraxia of Speech

    Science.gov (United States)

    Jacks, Adam

    2008-01-01

    Purpose: This study explored vowel production and adaptation to articulatory constraints in adults with acquired apraxia of speech (AOS) plus aphasia. Method: Five adults with acquired AOS plus aphasia and 5 healthy control participants produced the vowels [iota], [epsilon], and [ash] in four word-length conditions in unconstrained and bite block…

  10. [Tail-biting in pigs. Causes, effects and prevention].

    Science.gov (United States)

    van den Berg, J

    1982-10-01

    Although much is known of the causes and prevention of tail-biting, this continues to be a common vice in pigs. The animals seek diversion by chewing on the tails of their fellows as they feel uncomfortable. This may result in inflammation of the tail. Prevention should be directed towards improvement of the conditions which cause the animal to feel uncomfortable. As this will often not be possible or only in part, efforts are made to prevent tail-biting by docking the tails. When tail-docking is performed according to the rule in one- to three-day-old animals, tail-biting obviously will no longer be possible. However, this does not mean removing the causes of tail-biting. This procedure is therefore undesirable from the point of view of welfare of the animals. Inflammation of the tail may result in metastasis to the spinal column and/or lungs. This is frequently associated with bacteraemia. Moreover, the resulting abscess formation will be highly objectionable from the point of view of hygiene. PMID:7147219

  11. Complexity of acetylcholinesterases in biting flies and ticks

    Science.gov (United States)

    Acetylcholinesterase (AChE) inhibitors function as pesticides for invertebrates, vertebrate nerve agents, and medicine to reduce cognitive effects of Alzheimer’s disease. Organophosphate (OP) pesticides have been widely used to control biting flies and ticks, however, OP-resistance has compromised c...

  12. The management of dog bite injuries of genitalia in paediatric age

    Directory of Open Access Journals (Sweden)

    Mirko Bertozzi

    2013-01-01

    Full Text Available Dog bite injuries are common in children and represent an important health-care problem. Most dog bite injuries involve the face or an extremity. Victims tend to seek medical care quickly. Dog bites to the external genitalia are rarely reported, but they potentially result in morbidity if improperly managed. Morbidity is also directly related to the severity of initial wound. Guidelines for the management of dog bites include irrigation, dιbridment, antibiotic therapy, consideration of tetanus and rabies immunisation and suture of wounds or surgical reconstruction. Literature review was conducted and focused to analyze the management of dog bite lesions involving external genitalia.

  13. Bite force evaluation in subjects with cleft lip and palate

    Directory of Open Access Journals (Sweden)

    Carla Renata Sipert

    2009-04-01

    Full Text Available The purpose of this study was to evaluate the masticatory function of subjects with cleft lip and palate by analyzing the bite force developed by these individuals. Bite force was evaluated in a group of 27 individuals with repaired unilateral cleft lip and palate (14 males and 13 females - aged 18-26 years and compared to the data achieved from a group of 20 noncleft subjects (10 males and 10 females - aged 18-26 years. Measurement was achieved on three positions within the dental arch (incisors, right molars and left molars, three times at each position considering the highest value for each one. Statistical analysis was performed by ANOVA and Mann-Whitney test ( α = 5%. There was a significant deficit in bite force in male individuals with cleft lip and palate compared to the male control group (p=0.02, p=0.004, p=0.003 for incisors, right and left molars, respectively. For the female group, the difference was not statistically significant (p=0.79, p=0.06, p=0.47. In the group of individuals with clefts, 92.6% were under orthodontic treatment, which could be a reason for the present findings, since it can decrease the bite force more remarkably in males than in females. In conclusion, the bite force is significantly reduced in men when comparing the cleft group to the noncleft group. In females, this reduction was not significant in the same way. However, the main reason for this reduction and for the different behavior between genders should be further investigated.

  14. Simulation of dental collisions and occlusal dynamics in the virtual environment.

    Science.gov (United States)

    Stavness, I K; Hannam, A G; Tobias, D L; Zhang, X

    2016-04-01

    Semi-adjustable articulators have often been used to simulate occlusal dynamics, but advances in intra-oral scanning and computer software now enable dynamics to be modelled mathematically. Computer simulation of occlusal dynamics requires accurate virtual casts, records to register them and methods to handle mesh collisions during movement. Here, physical casts in a semi-adjustable articulator were scanned with a conventional clinical intra-oral scanner. A coordinate measuring machine was used to index their positions in intercuspation, protrusion, right and left laterotrusion, and to model features of the articulator. Penetrations between the indexed meshes were identified and resolved using restitution forces, and the final registrations were verified by distance measurements between dental landmarks at multiple sites. These sites were confirmed as closely approximating via measurements made from homologous transilluminated vinylpolysiloxane interocclusal impressions in the mounted casts. Movements between the indexed positions were simulated with two models in a custom biomechanical software platform. In model DENTAL, 6 degree-of-freedom movements were made to minimise deviation from a straight line path and also shaped by dynamic mesh collisions detected and resolved mathematically. In model ARTIC, the paths were further constrained by surfaces matching the control settings of the articulator. Despite these differences, the lower mid-incisor point paths were very similar in both models. The study suggests that mathematical simulation utilising interocclusal 'bite' registrations can closely replicate the primary movements of casts mounted in a semi-adjustable articulator. Additional indexing positions and appropriate software could, in some situations, replace the need for mechanical semi-adjustable articulation and/or its virtual representation. PMID:26685912

  15. Simulation of dental collisions and occlusal dynamics in the virtual environment.

    Science.gov (United States)

    Stavness, I K; Hannam, A G; Tobias, D L; Zhang, X

    2016-04-01

    Semi-adjustable articulators have often been used to simulate occlusal dynamics, but advances in intra-oral scanning and computer software now enable dynamics to be modelled mathematically. Computer simulation of occlusal dynamics requires accurate virtual casts, records to register them and methods to handle mesh collisions during movement. Here, physical casts in a semi-adjustable articulator were scanned with a conventional clinical intra-oral scanner. A coordinate measuring machine was used to index their positions in intercuspation, protrusion, right and left laterotrusion, and to model features of the articulator. Penetrations between the indexed meshes were identified and resolved using restitution forces, and the final registrations were verified by distance measurements between dental landmarks at multiple sites. These sites were confirmed as closely approximating via measurements made from homologous transilluminated vinylpolysiloxane interocclusal impressions in the mounted casts. Movements between the indexed positions were simulated with two models in a custom biomechanical software platform. In model DENTAL, 6 degree-of-freedom movements were made to minimise deviation from a straight line path and also shaped by dynamic mesh collisions detected and resolved mathematically. In model ARTIC, the paths were further constrained by surfaces matching the control settings of the articulator. Despite these differences, the lower mid-incisor point paths were very similar in both models. The study suggests that mathematical simulation utilising interocclusal 'bite' registrations can closely replicate the primary movements of casts mounted in a semi-adjustable articulator. Additional indexing positions and appropriate software could, in some situations, replace the need for mechanical semi-adjustable articulation and/or its virtual representation.

  16. Occlusal adjustment in the treatment of primary traumatic injury

    Directory of Open Access Journals (Sweden)

    Raulino Naves Borges

    2011-01-01

    Full Text Available A major concern in dentistry is the correct distribution of occlusal forces to promote balance among the elements of the stomatognathic system. Occlusal trauma may develop in situations where the magnitude of the load exerted by occlusion exceeds the ability of the periodontium surrounding the involved teeth to resist and distribute the resulting forces without moving. A 41-year-old female patient was referred to the Occlusion and Orofacial Pain Research Center at the School of Dentistry, Universidade Federal de Goiás, Brazil, with headache, temporomandibular joint pain, toothache, and bone resorption on the distal aspect of tooth #33. During clinical examination, a 2-mm difference between centric relation and habitual occlusion was detected, with interference between teeth #28 and #38, causing anterior projection of the mandible to the right. Probing depth of the lower canine was within normal limits, with a positive pulp vitality test. We concluded that pain and (grade II mobility in tooth #33 were caused by interference of third molars, which exerted a distal pressure on the lower canine, characterizing primary occlusal trauma. Occlusal adjustment by selective grinding was then indicated to eliminate premature contact. Ten sessions were required to obtain optimal occlusion. Three months after treatment, follow-up radiograph showed newly formed bone tissue between teeth #33 and #34, with absence of mobility and symptoms. The case reported here indicates that occlusal adjustment is recommended for the treatment of periodontal injuries caused by traumatic occlusion. The treatment allows the achievement of an optimal occlusion by directing occlusal forces to the long axis of the teeth.

  17. Occlusal adjustment in the treatment of secondary traumatic injury

    Directory of Open Access Journals (Sweden)

    Raulino Naves Borges

    2011-01-01

    Full Text Available The success of the rehabilitation treatment is associated with the relationship between occlusion and periodontal status. When occlusal loads exceed the ability of the periodontium to resist and distribute the resulting forces, injuries may develop, leading to failures in dental practice. A 35-year-old female patient presented at the Occlusion and Orofacial Pain Research Center at the School of Dentistry, Universidade Federal de Goiás, Brazil, complaining of pain and mobility in the maxillary central incisors and sensitivity in the mandibular left incisors and canine. Symptoms began after cast metal restoration was performed in tooth #27. Clinical examination revealed a signifi cant difference of 1 mm between centric relation and habitual occlusion, presence of a periodontal pocket 5 mm deep in the mesial aspect of tooth #11, and an increased vertical dimension of occlusion caused by occlusal interference between teeth #27 and #37. Radiographic examination detected vertical bone loss between teeth #21 and #11, on the mesial aspect of tooth #33 and between the lower incisors. The lower teeth also showed radiographic evidence of periapical lesions. Occlusal interference caused anterior projection of the mandible to the right, overloading the incisors. Treatment by occlusal adjustment was performed to promote an equal incidence of forces on all aspects of the teeth. Twelve sessions were required to achieve a balanced occlusion and restore the physiological vertical dimension of occlusion. Six months after treatment, there was radiographic evidence of newly formed bone tissue between teeth #11 and #21, regression of apical periodontitis in the lower teeth, and a decrease in mobility and all associated symptoms. Secondary traumatic injury may be responsible for changes in apical tooth structures. Occlusal adjustment may favor the direction of occlusal forces to the long axis of the teeth.

  18. Local Intra-Arterial Fibrinolysis in Acute Basilar Artery Occlusion

    OpenAIRE

    Enomoto, Y.; Yoshimura, S.; Kitajima, H.; Tamakawa, N.; Iwama, T

    2007-01-01

    Acute basilar artery (BA) occlusion is typically associated with poor outcome; however newer diagnostic and treatment modalities have the potential to improve prognosis. In this study, six patients with acute BA occlusion were followed and the effectiveness of local intra-arterial fibrinolysis (LIF) and subsequent percutaneous transluminal angioplasty (PTA) with a balloon catheter were assessed. Of the six patients with BA occlusion observed in this study, two had extended brain stem infarcti...

  19. Electro-oculogram of Retinal Vein Occlusion

    Institute of Scientific and Technical Information of China (English)

    1994-01-01

    Twenty five cases, including 26 eyes with retinal vein occlusion (RVO) were examined by means of the electro-oculogram. The results showed that 23 of the 26 eyes suffering from RVO exhibited abnormalities of the electro-oculogram (EOG). The potential difference and Arden ratio in the RVO eyes were lower than those in the normal eyes (P<0.01). The more the visual acuity of ill eyes was decreased, the higher the abnormal rate of EOG in ill eyes was. 14 eyes had the visual acuity less than 0.1, whose EOGs ...

  20. Arterial gas occlusions in operating heat pipes

    Science.gov (United States)

    Saaski, E. W.

    1975-01-01

    The effect of noncondensable gases on high performance arterial heat pipes has been investigated both analytically and experimentally. Models have been generated which characterize the dissolution of gases in condensate and the diffusional loss of dissolved gases from condensate in arterial flow. These processes, and others, have been used to postulate stability criteria for arterial heat pipes. Experimental observations of gas occlusions were made using a stainless steel heat pipe equipped with viewing ports, and the working fluids methanol and ammonia with the gas additives helium, argon, and xenon. Observations were related to gas transport models.

  1. Profile of Dog Bite Cases in an Urban Area of Kolkata, India

    Directory of Open Access Journals (Sweden)

    Ayan Ghosh, Ranabir Pal

    2014-01-01

    Results: In the present study of the reported animal bite cases affected all the ages and both genders; the incidence of animal bites decreased with increasing age. Majority of the victims were males except in elderly population; children were more vulnerable. Two thirds of animal bite victims were from socioeconomic class IV and V. Dogs were the most common biting animal followed by Cats. Maximum number of study participants reported to health centre within 24 to 48 hours and very few cases within 24 hours after bite. Late reported cases, especially after 5 days, constituted by younger children or illiterate elderly people were forcefully brought to the hospital by their family members or caregivers. Conclusions:Dog bite is common in males and children less than ten years among our study population with more of third degree bites though health seeking behaviour is far from expectation.

  2. Bite marks in mink—Induced experimentally and as reflection of aggressive encounters between mink

    DEFF Research Database (Denmark)

    Hansen, Steffen W; Møller, Steen Henrik; Damgaard, Birthe Marie

    2014-01-01

    tFor many years, bite marks have been used as an indicator for aggression in mink productionsystems. However, the validity of bite marks as indicator of aggression has recently beenquestioned. We therefore tested the following hypotheses: (1) experimentally applied pressure to, or penetration of......, the pelt during the growth phase of the winter coat will producemarks that can be recognized as bite marks at pelting, (2) bite marks applied experimentally by use of an artificial tooth or occurring due to social/aggressive interactions (bites)between mink are only visible if pressure/bite on the mink...... skin is applied during the activegrowth phase of the winter coat prior to time when matured, (3) bite marks will be easierto detect on dark mink than on mink with light coloured fur and (4) the number of bitemarks accumulates and increases with time mink are housed in groups. The experimentalmink were...

  3. Hydrocolloid occlusion for the treatment of neurovascular corns

    DEFF Research Database (Denmark)

    Petersen, Lars Jelstrup; Beck, Jan Walther; Reumert, L N;

    1991-01-01

    The goal of this study was to determine the effect of hydrocolloid occlusion on neurovascular corns. The design was an observer-blinded, randomized, controlled study. Thirty consecutive patients participated in the trial. The patients received curettage alone or curettage with hydrocolloid...... occlusion. Six treatments were given over 12 weeks. A follow-up examination was performed 3 months after termination of the trial. Outcome measures were the size of the corns, a discomfort score, and an overall judgment of the trial. The results demonstrated no benefit of occlusion for symptoms or signs...... of neurovascular corns. The patients treated with occlusion were, however, generally more satisfied than the conventional group....

  4. Metabolic syndrome and central retinal artery occlusion

    Directory of Open Access Journals (Sweden)

    Kosanović-Jaković Natalija

    2005-01-01

    Full Text Available Background. The accumulation of risk factors for central retinal artery occlusion can be seen in a single person and might be explained by the metabolic syndrome. Case report. We presented the case of a 52-year-old man with no light perception in his right eye. The visual loss was monocular and painless, fundoscopy showed central retinal artery occlusion and the laboratory investigation showed the raised erythrocyte sedimentation rate of 105 mm/h and the raised C-reactive protein of 22 mg/l. Specific laboratory investigations and fluorescein angiography excluded the presence of vasculitis, collagen vascular diseases, hypercoagulable state and antiphospholipid syndrome. Conclusion. The patient met all the five of the National Cholesterol Education Program (NCEP criteria for the metabolic syndrome: hypertension, abnormal lipid profile, abnormal glucose metabolism, obesity and hyperuricemia. Measurement of C-reactive protein is useful for the assessment of therapeutic systemic effect on any abnormality in the metabolic syndrome. Individual therapy for all risk factors in the metabolic syndrome is necessary to prevent complications such as cardiovascular, retinal vascular diseases and stroke.

  5. Dental occlusion: modern concepts and their application in implant prosthodontics.

    Science.gov (United States)

    Carlsson, Gunnar E

    2009-01-01

    The aim of this article was to review the literature on various aspects of occlusion related to implant prosthodontics, using PubMed and the Cochrane library. Even if the number of studies on implants and prosthodontics is very large, no randomized controlled trials or Cochrane reviews were found on the possible influence of occlusal design or characteristics of occlusion on treatment outcome. Therefore, studies and articles of a lower evidence level were accepted as the main part of the review. The widely spread opinion that implants are superior to natural teeth was refuted by two recent consensus conferences, which concluded that the long-term outcome of implant restorations is not better than that of natural teeth. No controlled studies on the optimal features of a harmonious natural and/or restored occlusion, including implant prostheses, were found. Nor was there any evidence that more sophisticated methods in jaw registration, e.g., using face-bows and adjustable articulators, compared with simpler methods, will yield better clinical prosthodontic results. This article discusses, among other things, concepts of occlusion of implant-supported restorations, occlusal material, cantilevers, and occlusal risk factors. Within the limitations of the review, it was concluded that many factors can influence implant failure and peri-implant bone loss but that little is known of the relative importance of such factors. Most probably, however, occlusal factors and details of occlusion are in general of minor importance for the outcome of implant restorations. Occlusion can be managed successfully by using simple methods for jaw registration and different occlusal concepts.

  6. A new bite block for panoramic radiographs of anterior edentulous patients: A technical report

    International Nuclear Information System (INIS)

    Panoramic radiographs taken using conventional chin-support devices have often presented problems with positioning accuracy and reproducibility. The aim of this report was to propose a new bite block for panoramic radiographs of anterior edentulous patients that better addresses these two issues. A new panoramic radiography bite block similar to the bite block for dentulous patients was developed to enable proper positioning stability for edentulous patients. The new bite block was designed and implemented in light of previous studies. The height of the new bite block was 18 mm and to compensate for the horizontal edentulous space, its horizontal width was 7 mm. The panoramic radiographs using the new bite block were compared with those using the conventional chin-support device. Panoramic radiographs taken with the new bite block showed better stability and bilateral symmetry than those taken with the conventional chin-support device. Patients also showed less movement and more stable positioning during panoramic radiography with the new bite block. Conventional errors in panoramic radiographs of edentulous patients could be caused by unreliability of the chin-support device. The newly proposed bite block for panoramic radiographs of edentulous patients showed better reliability. Further study is required to evaluate the image quality and reproducibility of images with the new bite block

  7. A new bite block for panoramic radiographs of anterior edentulous patients: A technical report

    Energy Technology Data Exchange (ETDEWEB)

    Park, Jong Woong; Huh, Kyung Hoe; Yi, Won Jin; Heo, Min Suk; Lee, Sam Sun; Choi, Soon Chul [Dept. of Oral and Maxillofacial Radiology and Dental Research Institute, School of Dentistry, Seoul National University, Seoul (Korea, Republic of); Symkhampha, Khanthaly [Dept. of Oral and Maxillofacial Radiology, Department of Basic Science, Faculty of Dentistry, University of Health Sciences, Vientiane (Lao People' s Democratic Republic)

    2015-06-15

    Panoramic radiographs taken using conventional chin-support devices have often presented problems with positioning accuracy and reproducibility. The aim of this report was to propose a new bite block for panoramic radiographs of anterior edentulous patients that better addresses these two issues. A new panoramic radiography bite block similar to the bite block for dentulous patients was developed to enable proper positioning stability for edentulous patients. The new bite block was designed and implemented in light of previous studies. The height of the new bite block was 18 mm and to compensate for the horizontal edentulous space, its horizontal width was 7 mm. The panoramic radiographs using the new bite block were compared with those using the conventional chin-support device. Panoramic radiographs taken with the new bite block showed better stability and bilateral symmetry than those taken with the conventional chin-support device. Patients also showed less movement and more stable positioning during panoramic radiography with the new bite block. Conventional errors in panoramic radiographs of edentulous patients could be caused by unreliability of the chin-support device. The newly proposed bite block for panoramic radiographs of edentulous patients showed better reliability. Further study is required to evaluate the image quality and reproducibility of images with the new bite block.

  8. CEREBRAL INFARCTION IN A YOUNG FEMALE FOLLOWING SNAKE BITE

    Directory of Open Access Journals (Sweden)

    Rajesh Reddy Venkata Komatla

    2016-06-01

    Full Text Available Cerebral complications, particularly ischaemic infarcts after snake bites are rare. Multiple mechanisms are involved in cerebral infarction following snake envenomation. Possible mechanisms include: (1 Anticoagulant and procoagulant effects of snake venom leading to microthrombi, (2 Direct cardiotoxic effects of venom causing dysrhythmias, leading to cardiac thromboembolism and (3 Severe vascular spasm, hypotension and hyperviscosity caused by hypovolaemia. We report a case of a 35-year-old female patient who presented to our casualty with history of snake bite. Following which, she developed bleeding from puncture site with deranged PT INR and anti-snake venom was given. The following day, patient developed right-sided monoplegia with Broca’s aphasia and repeat PT INR came back normal. Imaging showed an ischaemic infarct in left middle cerebral artery territory. Patient was treated accordingly and discharged with residual deficit after a week. Patient is under followup and doing well.

  9. Cheek Plumper: An Innovative Anti-cheek Biting Appliance

    Science.gov (United States)

    Srivastava, Nikhil; Kaushik, Noopur; Panthri, Prerna

    2016-01-01

    ABSTRACT One of the most challenging tasks for a pediatric dentist is the management of deleterious oral habits which adversely affect the dentofacial complex. However, if these habits can be intercepted and diagnosed well in time, they can save the patient from the psychological impact of undergoing long treatment therapies. One such rare deleterious oral habit is cheek biting that affects the buccal mucosa. Presented here is a case report which describes the interception of this deleterious habit in a 15-year-old female child who was a bilateral cheek biter with the help of an innovative intraoral appliance: The cheek plumper. How to cite this article: Rana V, Srivastava N, Kaushik N, Panthri P. Cheek Plumper: An Innovative Anti-cheek Biting Appliance. Int J Clin Pediatr Dent 2016;9(2):146-148. PMID:27365937

  10. Extreme solid state refrigeration using nanostructured Bi-Te alloys.

    Energy Technology Data Exchange (ETDEWEB)

    Lima Sharma, Ana L. (San Jose State University, San Jose, CA); Spataru, Dan Catalin; Medlin, Douglas L.; Sharma, Peter Anand; Morales, Alfredo Martin

    2009-09-01

    Materials are desperately needed for cryogenic solid state refrigeration. We have investigated nanostructured Bi-Te alloys for their potential use in Ettingshausen refrigeration to liquid nitrogen temperatures. These alloys form alternating layers of Bi{sub 2} and Bi{sub 2}Te{sub 3} blocks in equilibrium. The composition Bi{sub 4}Te{sub 3} was identified as having the greatest potential for having a high Ettingshausen figure of merit. Both single crystal and polycrystalline forms of this material were synthesized. After evaluating the Ettingshausen figure of merit for a large, high quality polycrystal, we simulated the limits of practical refrigeration in this material from 200 to 77 K using a simple device model. The band structure was also computed and compared to experiments. We discuss the crystal growth, transport physics, and practical refrigeration potential of Bi-Te alloys.

  11. Cognitive impairments in patients with cerebrovascular steno-occlusive disease

    Institute of Scientific and Technical Information of China (English)

    石丹

    2012-01-01

    Objective To explore the relationship between cerebrovascular steno-occlusive disease and neuropsychological performance by cognitive function assessment. Methods Using a case-control study,45 patients with cerebrovascular steno-occlusive lesions (patient group) and 59 control subjects without cerebrovascular

  12. Dorzolamide increases retinal oxygen tension after branch retinal vein occlusion

    DEFF Research Database (Denmark)

    Noergaard, Michael Hove; Bach-Holm, Daniella; Scherfig, Erik;

    2008-01-01

    To study the effect of dorzolamide on the preretinal oxygen tension (RPO(2)) in retinal areas affected by experimental branch retinal vein occlusion (BRVO) in pigs.......To study the effect of dorzolamide on the preretinal oxygen tension (RPO(2)) in retinal areas affected by experimental branch retinal vein occlusion (BRVO) in pigs....

  13. An adaptive occlusion culling algorithm for use in large ves

    DEFF Research Database (Denmark)

    Bormann, Karsten

    2000-01-01

    The Hierarchical Occlusion Map algorithm is combined with Frustum Slicing to give a simpler occlusion-culling algorithm that more adequately caters to large, open VEs. The algorithm adapts to the level of visual congestion and is well suited for use with large, complex models with long mean free...

  14. Vascular occlusion in cut rose flowers - a survey

    NARCIS (Netherlands)

    Doorn, van W.G.

    1995-01-01

    The causes of low water uptake and water stress symptoms in cut rose flowers are briefly reviewed. Low water uptake is due to an occlusion, mainly located in the basal stem end. No evidence has been found for a reaction of the plant after cutting, in the formation of this occlusion. The blockage has

  15. Relationship between retinal vascular occlusions and incident cerebrovascular diseases

    Science.gov (United States)

    Zhou, Yue; Zhu, Wengen; Wang, Changyun

    2016-01-01

    Abstract Several studies investigating the role of retinal vascular occlusions, on cerebrovascular diseases (CVD) have been reported, but the results are still inconsistent. We therefore sought to evaluate the relationship between retinal vascular occlusions and CVD. We systematically searched the Cochrane Library, PubMed, and ScienceDirect databases through January 31, 2016 for studies evaluating the effect of retinal vascular occlusions on the risk of CVD. Data were abstracted using predefined criteria, and then pooled by RevMan 5.3 software. A total of 9 retrospective studies were included in this meta-analysis. When compared with individuals without retinal vascular occlusions, both individuals with retinal artery occlusion (RAO) (odds ratio [OR] = 2.01, 95% confidence interval [CI]: 1.21–3.34; P = 0.005) and individuals with retinal vein occlusion (RVO) (OR = 1.37, 95% CI: 1.24–1.50; P < 0.00001) had higher risks of developing CVD. Additionally, both individuals with central retinal artery occlusion (CRAO) (OR = 2.00, 95% CI: 1.12–3.56; P = 0.02) and branch retinal artery occlusion (BRAO) (OR = 1.60, 95% CI: 1.03–1.48; P = 0.04) were significantly associated with increased risk of CVD. Published literatures support both RVO and RAO are associated with increased risks of CVD. Further prospective studies are needed to confirm these findings. PMID:27368050

  16. Effect of glove occlusion on the skin barrier

    DEFF Research Database (Denmark)

    Tiedemann, Daniel; Clausen, Maja Lisa; John, Swen Malthe;

    2016-01-01

    of this study is to review the literature on the effects of glove occlusion on skin barrier function. The PubMed database was searched up to 1 February 2015 for articles on the association between glove occlusion and skin barrier function, including human studies only and in English. Only experimental studies...

  17. Comorbidity in patients with branch retinal vein occlusion

    DEFF Research Database (Denmark)

    Bertelsen, Mette; Linneberg, Allan; Rosenberg, Thomas;

    2012-01-01

    To evaluate comorbidity before and after the diagnosis of branch retinal vein occlusion to determine whether it is a consequence of arterial thickening and therefore could serve as a diagnostic marker for other comorbidities and to evaluate the risk factors for the development of such occlusion....

  18. Describing the relationship between cat bites and human depression using data from an electronic health record.

    Directory of Open Access Journals (Sweden)

    David A Hanauer

    Full Text Available Data mining approaches have been increasingly applied to the electronic health record and have led to the discovery of numerous clinical associations. Recent data mining studies have suggested a potential association between cat bites and human depression. To explore this possible association in more detail we first used administrative diagnosis codes to identify patients with either depression or bites, drawn from a population of 1.3 million patients. We then conducted a manual chart review in the electronic health record of all patients with a code for a bite to accurately determine which were from cats or dogs. Overall there were 750 patients with cat bites, 1,108 with dog bites, and approximately 117,000 patients with depression. Depression was found in 41.3% of patients with cat bites and 28.7% of those with dog bites. Furthermore, 85.5% of those with both cat bites and depression were women, compared to 64.5% of those with dog bites and depression. The probability of a woman being diagnosed with depression at some point in her life if she presented to our health system with a cat bite was 47.0%, compared to 24.2% of men presenting with a similar bite. The high proportion of depression in patients who had cat bites, especially among women, suggests that screening for depression could be appropriate in patients who present to a clinical provider with a cat bite. Additionally, while no causative link is known to explain this association, there is growing evidence to suggest that the relationship between cats and human mental illness, such as depression, warrants further investigation.

  19. Describing the relationship between cat bites and human depression using data from an electronic health record.

    Science.gov (United States)

    Hanauer, David A; Ramakrishnan, Naren; Seyfried, Lisa S

    2013-01-01

    Data mining approaches have been increasingly applied to the electronic health record and have led to the discovery of numerous clinical associations. Recent data mining studies have suggested a potential association between cat bites and human depression. To explore this possible association in more detail we first used administrative diagnosis codes to identify patients with either depression or bites, drawn from a population of 1.3 million patients. We then conducted a manual chart review in the electronic health record of all patients with a code for a bite to accurately determine which were from cats or dogs. Overall there were 750 patients with cat bites, 1,108 with dog bites, and approximately 117,000 patients with depression. Depression was found in 41.3% of patients with cat bites and 28.7% of those with dog bites. Furthermore, 85.5% of those with both cat bites and depression were women, compared to 64.5% of those with dog bites and depression. The probability of a woman being diagnosed with depression at some point in her life if she presented to our health system with a cat bite was 47.0%, compared to 24.2% of men presenting with a similar bite. The high proportion of depression in patients who had cat bites, especially among women, suggests that screening for depression could be appropriate in patients who present to a clinical provider with a cat bite. Additionally, while no causative link is known to explain this association, there is growing evidence to suggest that the relationship between cats and human mental illness, such as depression, warrants further investigation. PMID:23936453

  20. Epidemiology of aortic disease - aneurysm, dissection, occlusion

    International Nuclear Information System (INIS)

    The physiological infrarenal aortic diameter varies between 12.4 mm in women an 27.6 mm in men. As defined, an aneurysmatic dilatation begins with 29 mm. According to that, 9% of all people above the age of 65 are affected by an abdominal aortic aneurysm (AAA). Compared with the female sex, the male sex predominates at a rate of about 5:1. The disease is predominant in men of the white race. In black men, black and white women the incidence of AAA is identical. 38 to 50 percent of the AAA patients (patients) suffer from hypertension, 33 to 60% from coronary, 28% from cerebrovascular and 25% from peripheral occlusive disease. The AAA expansion rate varies between 0.2 and 0.8 cm per year and is exponential from a diameter of 5 cm on. In autopsy studies, the rupture rates with AAA diameters of 7 cm were below 5%, 39% and 65%, respecitvely. 70% of the AAA patients do not die of a rupture, but of a cardiac disease. Serum markers, such as metalloproteinases and procollagen peptides are significantly increased in AAA patients. Thoraco-abdominal aneurysms (TAA) make up only 2 to 5% of all degenerative aneurysms. 20 to 30% of the TAA patients are also affected by an AAA. 80% of the TAA are degenerative, 15 to 20% are a consequence of the chronic dissection - including 5% of Marfan patients -, 2% occur in case of infections and 1 to 2% in case of aortitis. The TAA incidence in 100,000 person-years is 5.9% during a monitoring period of 30 years. In case of TAA, an operation is indicated with a maximum diameter of 5.5 to 6 cm and more and, in case of a Marfan's syndrome (incidence of 1:10,000), with a maximum diameter of 5.5 cm and more. With regard to aorto-iliac occlusive diseases, there are defined 3 types of distribution. Type I refers to the region of the bifurcation itself. Type II defines the diffuse aortoiliac spread of the disease. Type III designates multiple-level occlusions also beyond the inguinal ligament. Type I patients in most cases are female and more

  1. Pott′s puffy tumor following an insect bite

    Directory of Open Access Journals (Sweden)

    Raja V

    2007-01-01

    Full Text Available Pott′s puffy tumor, a feature of osteomyelitis of the frontal bone, is a rare entity, especially in adults. Sir Percival Pott originally described this condition as a complication of trauma to the frontal bone. This is also a recognized complication of fronto-ethmoidal sinusitis. We present a rare case of Pott′s puffy tumor caused by an insect bite presenting initially as a preseptal cellulitis and explore its pathogenesis and management.

  2. Crocodile bites and traditional beliefs in Korogwe District, Tanzania.

    OpenAIRE

    Scott, R.; Scott, H

    1994-01-01

    OBJECTIVES--To investigate why fatal crocodile bites are increasing in a Tanzanian district and the importance of traditional beliefs and superstitions in determining the residents' response to the crocodiles. DESIGN--Information about beliefs was obtained by interview of Korogwe residents. Human and crocodile fatality statistics were obtained from the Korogwe Department of Natural Resources. SETTING--Villages within Korogwe District. SUBJECTS--Population of Korogwe District. RESULTS--Crocodi...

  3. SNAKE BITE WITH TOXIC DEMYELINATION – A CASE REPORT

    Directory of Open Access Journals (Sweden)

    Justin

    2016-02-01

    Full Text Available INTRODUCTION Snakebite is an important cause of mortality and morbidity in India. India has the highest number of deaths due to snake bite1 Neurotoxicity due to snakebite is well-known with varied presentation.2 Common cases of snakebites are of saw-scaled viper (Echis carinatus, Russell’s viper (a viperidae, krait (Bungarus caeruleus, common cobra (Naja naja king cobra (Ophiophagus hannah.3

  4. SNAKE BITE WITH TOXIC DEMYELINATION – A CASE REPORT

    OpenAIRE

    Justin; Manivannan; Ramu

    2016-01-01

    INTRODUCTION Snakebite is an important cause of mortality and morbidity in India. India has the highest number of deaths due to snake bite1 Neurotoxicity due to snakebite is well-known with varied presentation.2 Common cases of snakebites are of saw-scaled viper (Echis carinatus), Russell’s viper (a viperidae), krait (Bungarus caeruleus), common cobra (Naja naja) king cobra (Ophiophagus hannah).3

  5. Clinical application of hepatic venous occlusion for hepatectomy

    Institute of Scientific and Technical Information of China (English)

    PAN Ze-ya; YANG Yuan; ZHOU Wei-ping; LI Ai-jun; FU Si-yuan; WU Meng-chao

    2008-01-01

    Background Most liver resections require clamping of the hepatic pedicle (Pringle maneuver) to avoid excessive blood loss. But Pringle maneuver can not control backflow bleeding of hepatic vein, Resection of liver tumors involving hepatic veins may cause massive hemorrhage or air embolism from the injuries of the hepatic veins. Although total hepatic vascular exclusion can prevent bleeding of the hepatic veins effectively, it also may result in systemic hemodynamic disturbance because of the inferior vena cava being clamped. Hepatic venous occlusion, a new technique, can control the inflow and outflow of the liver without clamping the vena cava.Methods A total of 71 cases of liver tumors underwent resection with occlusion of more than one of the main hepatic veins. All tumors involved the second porta hepatis and at least one main hepatic vein. Ligation or occlusion with serrefines, tourniquets and auricular clamps were used in hepatic venous occlusion.Results Of the 71 patients, ligation of the hepatic veins was used in 28 cases, occlusion with a tourniquet in 26, and occlusion with a serrefine in 17. Right hepatic veins were occluded in 38 cases, both right and middle hepatic veins in 2,the common trunk of the left and middle hepatic veins in 24, branches of the left and middle hepatic veins in 2, and all three hepatic veins in 5. Thirty-five cases underwent hemihepatic vascular occlusion, 4 alternate hemihepatic vascular occlusion, 23 portal triad clamping plus selective hepatic vein occlusion, and 9 portal triad clamping plus total hepatic vein occlusion. The third porta hepatis was isolated in 26 cases. The amount of intraoperative blood loss averaged (540±283) (range 100 to 1000) ml in the group of total hemihepatic vascular occlusion and in the group of alternate hemihepatic vascular occlusion, (620±317) (range 200-6000) ml in the group of portal triad clamping plus selective or total hepatic vein occlusion. All tumors were completely removed

  6. The Electroretinogram in Patients with Retinal Vascular Occlusion

    Institute of Scientific and Technical Information of China (English)

    Shizhou Huang; Lezheng Wu; Taiqing Luo; De-Zheng Wu; Futian Jiang; Guangwei Luo; Juanmei Ma

    2001-01-01

    Purpose: to measure and analyze the electroretinogram (ERG) in patients with retinal vascular occlusion. Method: fifty-eight cases (59 eyes) of retinal vascular occlusion and the fellow eyes of 47 cases were tested with Ganzfeld ERG. The scotopic and photopic ERG, and oscillatory potentials were tested according to the ERG standard of ISCEV. Results: The abnormal rates of Ops and b wave were higher in retinal vascular occlusion. The abnormal ERG appeared mostly in CRVO among four types of retinal vascular occlusion. The comparisons of some amplitudes and latencies between the fellow eyes and the affected eyes showed statistically significant difference. Conclusion: The oscillatory potentials and b waves have important roles in evaluating the retinal function of patients with retinal vascular occlusions. There are some clinical significance for comparing ERG between the affected eye and the fellow eye. Eye Science 2001; 17: 50 ~ 53.

  7. Neurological manifestations of snake bite in Sri Lanka.

    Directory of Open Access Journals (Sweden)

    Seneviratne U

    2002-10-01

    Full Text Available BACKGROUND AND AIMS: Snake bite is an important cause of mortality and morbidity in certain parts of Sri Lanka. This study was designed to determine the offending snakes, neurological manifestations, disease course, and outcome in neurotoxic envenomation. METHODS AND MATERIAL: Fifty six consecutive patients admitted with neurological manifestations following snake bite were studied prospectively. Data were obtained regarding the offending snakes, neurological symptoms, time taken for onset of symptoms, neurological signs, and time taken for recovery. RESULTS: The offending snake was Russell′s viper in 27(48.2%, common and Sri Lankan krait in 19(33.9%, cobra in 3(5.4%, and unidentified in 7(12.5%. Ptosis was the commonest neurological manifestation seen in 48(85.7% followed by ophthalmoplegia (75%, limb weakness (26.8%, respiratory failure (17.9%, palatal weakness (10.7%, neck muscle weakness (7.1%, and delayed sensory neuropathy (1.8%. Neurological symptoms were experienced usually within 6 hours after the bite. Following administration of antivenom, the signs of recovery became evident within a few hours to several days. The duration for complete recovery ranged from four hours to two weeks. CONCLUSIONS: Complete recovery of neuromuscular weakness was observed in all patients except for one who died with intracerebral haemorrhage shortly after admission.

  8. Bothrops lanceolatus bites: guidelines for severity assessment and emergent management.

    Science.gov (United States)

    Resiere, Dabor; Mégarbane, Bruno; Valentino, Ruddy; Mehdaoui, Hossein; Thomas, Laurent

    2010-01-01

    Approximately 20-30 declared snakebite cases occurin Martinique each year. Bothrops lanceolatus, a member of the Crotalidae family, is considered to be the only involved snake. B. lanceolatus, commonly named "Fer-de-Lance", is endemic and only found on this Caribbean island. Envenomation local features include the presence of fang marks, swelling, pain, bleeding from punctures, and ecchymosis. Severe envenomation is associated with multiple systemic thromboses appearing within 48 h of the bite and resulting in cerebral, myocardial or pulmonary infarctions. Diagnosis requires first of all identification of the snake. Coagulation tests are helpful to identify thrombocytopenia or disseminated intravascular coagulation. A clinical score based on 4 grades is helpful to assess envonimation severity. A specific monovalent equine anti-venom (Bothrofav(®), Sanofi-Pasteur, France) to neutralize B. lanceolatus venom is available. Its early administration within 6h from the biting in case of progressive local injures, general signs or coagulation disturbances is effective to prevent severe thrombosis and coagulopathy. Its tolerance is considered to be good. Despite an increasing incidence of bites, no deaths have been recently attributed to B. lanceolatus in Martinique, probably due to the currently recommended strategy of early antivenom administration when required. PMID:22069552

  9. Gastroesophageal reflux diagnosed by occlusal splint tintion.

    Science.gov (United States)

    Cebrián-Carretero, José Luis; López-Arcas-Calleja, José María

    2006-01-01

    The gastroesophageal reflux (GER) disease is a very frequent digestive disorder, mainly characterised by the reflux of the gastric acidic content to the esophage in abnormal quantities. There are different situations that favour this situation but almost in all of them rely an incompetence of the esophagic sphincter. The clinical consequences are many, including oral manifestations. Among all of them the most frequent is the esophagitis followed by symptoms at the pharynx or larynx and finally, the oral cavity. At this level fundamentally we will find enamel and oral mucosa erosions. We report the case of a patient who was indirectly diagnosed of her esophague disease by the observation of the alterations in the occlusal splint induced by the gastric reflux. We review the literature concerning the above topic and its possible association with the miofascial syndrome.

  10. Local histograms and image occlusion models

    CERN Document Server

    Massar, Melody L; Fickus, Matthew; Kovacevic, Jelena

    2011-01-01

    The local histogram transform of an image is a data cube that consists of the histograms of the pixel values that lie within a fixed neighborhood of any given pixel location. Such transforms are useful in image processing applications such as classification and segmentation, especially when dealing with textures that can be distinguished by the distributions of their pixel intensities and colors. We, in particular, use them to identify and delineate biological tissues found in histology images obtained via digital microscopy. In this paper, we introduce a mathematical formalism that rigorously justifies the use of local histograms for such purposes. We begin by discussing how local histograms can be computed as systems of convolutions. We then introduce probabilistic image models that can emulate textures one routinely encounters in histology images. These models are rooted in the concept of image occlusion. A simple model may, for example, generate textures by randomly speckling opaque blobs of one color on ...

  11. Robust visual tracking with contiguous occlusion constraint

    Science.gov (United States)

    Wang, Pengcheng; Qian, Weixian; Chen, Qian

    2016-02-01

    Visual tracking plays a fundamental role in video surveillance, robot vision and many other computer vision applications. In this paper, a robust visual tracking method that is motivated by the regularized ℓ1 tracker is proposed. We focus on investigating the case that the object target is occluded. Generally, occlusion can be treated as some kind of contiguous outlier with the target object as background. However, the penalty function of the ℓ1 tracker is not robust for relatively dense error distributed in the contiguous regions. Thus, we exploit a nonconvex penalty function and MRFs for outlier modeling, which is more probable to detect the contiguous occluded regions and recover the target appearance. For long-term tracking, a particle filter framework along with a dynamic model update mechanism is developed. Both qualitative and quantitative evaluations demonstrate a robust and precise performance.

  12. Pathology of Coronary Chronic Total Occlusion

    Directory of Open Access Journals (Sweden)

    Kenichi Sakakura

    2016-06-01

    Full Text Available There is an increasing need for percutaneous revascularization procedures of coronary Chronic Total Occlusion (CTO, because many patients with severe coronary artery disease have limited options for revascularization. Although the success rate of percutaneous revascularization of CTOs was unsatisfactory from the 1990s to the 2000s, recent technological advances in interventional strategies have improved the success rate to 85%. Detailed histological assessment of human autopsy studies of CTO has contributed significantly to the refinement in Percutaneous Coronary Intervention (PCI techniques and device development. We have recently reported the pathological findings and characteristics of CTOs that occur in different clinical scenarios. In this review, we discuss the pathology of CTOs to facilitate greater understanding of revascularization strategies for CTOs.

  13. Acute aortic occlusion presenting as flaccid paraplegia.

    Science.gov (United States)

    Kilany, Ayman; Al-Hashel, Jasem Y; Rady, Azza

    2015-01-01

    A 67-year-old male known to be hypertensive and diabetic had a sudden onset of severe low back pain and flaccid paraplegia with no sensory level or bladder affection and the distal pulsations were felt. Acute compressive myelopathy was excluded by MRI of the dorsal and lumbar spines. The nerve conduction study and CSF analysis was suggestive of acute demyelinating polyneuropathy. The patient developed ischemic changes of the lower limb and CT angiography revealed severe stenosis of the abdominal aorta and both common iliac arteries. We emphasize the importance of including acute aortic occlusion in the differential diagnosis of acute flaccid paraplegia especially in the presence of severe back pain even if the distal pulsations were felt. PMID:25866688

  14. Retinal vein occlusion in Benin City, Nigeria

    Directory of Open Access Journals (Sweden)

    Odarosa M Uhumwangho

    2016-01-01

    Full Text Available Background: Retinal vein occlusion (RVO is the most common occlusive retinal vascular disorder and results in varying degrees of visual loss. Aim: To determine the pattern of presentation, risk factors, and treatment outcomes in a group of patients with RVO seen in a tertiary hospital in Nigeria. Materials and Methods: Medical records of patients who presented to the University of Benin Teaching Hospital, Benin City, Nigeria in whom a diagnosis of RVO was made over a 5 years period were reviewed. Data obtained were analyzed with the GraphPad Instat Software, Inc. version V2.05a program, San Diego, Califonia and a P < 0.05 considered significant. Results: There were 20 patients made of 14 (70.0% males and 6 (30.0% females with a mean age of 62.7 ± 10.4 years. There were 15 (68.2% eyes with central RVO, 3 (13.6% eyes with branch RVO, and 4 (18.2% eyes with hemi RVO. Bilateral involvement occurred in 2 (10.0% patients. Risk factors included hypertension 14 (70.0%, diabetes mellitus 9 (45.0%, and glaucoma 5 (22.7%. Multiple risk factors were present in 14 (70.0% patients. Complications included macula edema 15 (68.2%, retinal neovascularization 5 (22.7%, neovascular glaucoma 3 (13.6%, and vitreous hemorrhage 2 (9.1%. Eyes which had definitive treatment with intravitreal antivascular endothelial growth factors and laser photocoagulation for macula edema and retinal neovascularization, respectively, had better visual acuity compared to eyes which did not receive these treatment, P = 0.002. Conclusion: The incidence and visual loss that occurs from RVO can be reduced by modifying known risk factors and early institution of appropriate therapy for complications that occur.

  15. Coherent spatial and temporal occlusion generation

    Science.gov (United States)

    Klein Gunnewiek, R.; Berretty, R.-P. M.; Barenbrug, B.; Magalhães, J. P.

    2009-02-01

    A vastly growing number of productions from the entertainment industry are aiming at 3D movie theatres. These productions use a two-view format, primarily intended for eye-wear assisted viewing in a well defined environment. To get this 3D content into the home environment, where a large variety of 3D viewing conditions exists (e.g different display sizes, display types, viewing distance), we need a flexible 3D format that can adjust the depth effect. Such a format is the image plus depth format in which a video frame is enriched with depth information of all pixels in the video. This format can be extended with an additional layer for occluded video and associated depth, that contains what is behind objects in the video. To produce 3D content in this extended format, one has to deduce what is behind objects. There are various axes along which this occluded data can be obtained. This paper presents a method to automatically detect and fill the occluded areas exploiting the temporal axis. To get visually pleasing results, it is of utmost importance to make the inpainting globally consistent. To do so, we start by analyzing data along the temporal axis and compute a confidence for each pixel. Then pixels from the future and the past that are not visible in the current frame are weighted and accumulated based on computed confidences. These results are then fed to a generic multi-source framework that computes the occlusion layer based on the available confidences and occlusion data.

  16. Thrombophilic screening in retinal artery occlusion patients

    Directory of Open Access Journals (Sweden)

    Valeria Nagy

    2008-10-01

    Full Text Available Valeria Nagy1, Lili Takacs1, Zita Steiber1, György Pfliegler2, Andras Berta11Department of Ophthalmology, 2Division of Rare Diseases, University of Debrecen Medical and Health Science Center, Debrecen, HungaryBackground: Retinal artery occlusion (RAO is an ischemic vascular damage of the retina, which frequently leads to sudden, mostly irreversible loss of vision. In this study, blood thrombophilic factors as well as cardiovascular risk factors were investigated for their relevance to this pathology. Thrombophilic risk factors so far not evaluated were included in the study.Patients and methods: 28 RAO patients and 81 matched control subjects were examined. From blood samples, protein C, protein S, antithrombinopathy, and factor V (Leiden mutation (FV, factor II gene polymorphism, factor VIII C level, plasminogen activity, lipoprotein(a and fibrinogen levels, hyperhomocysteinemia and presence of anticardiolipin – antiphospholipid antibodies were investigated. Possibly relevant pathologies such as diabetes mellitus, hypertension, and ischemic heart disease were also registered. Statistical analysis by logistic regression was performed with 95% confidence intervals.Results: In the group of patients with RAO only the incidence of hypertension (OR: 3.33, 95% CI: 1.30–9.70, p = 0.014 as an average risk factor showed significant difference, but thrombophilic factors such as hyperfibrinogenemia (OR: 2.9, 95% CI: 1.29–6.57, p = 0.010 and the presence of FV (Leiden mutation (OR: 3.9, 95% CI: 1.43–10.96, p = 0.008 increased the chances of developing this disease.Conclusions: Our results support the assumption that thrombophilia may contribute to the development of RAO besides vascular damage due to the presence of cardiovascular risk factors. Further studies are needed, however, to justify the possible use of secondary prophylaxis in form of anticoagulant/antiplatelet therapy.Keywords: retinal arterial occlusion, risk factors, thrombophilia

  17. A Case of Incomplete Central Retinal Artery Occlusion Associated with Short Posterior Ciliary Artery Occlusion

    Directory of Open Access Journals (Sweden)

    Shinji Makino

    2013-01-01

    Full Text Available To our knowledge, incomplete central retinal artery occlusion associated with short posterior ciliary artery occlusion is extremely rare. Herein, we describe a case of a 62-year-old man who was referred to our hospital with of transient blindness in his right eye. At initial examination, the patient’s best-corrected visual acuity was 18/20 in the right eye. Fundus examination showed multiple soft exudates around the optic disc and mild macular retinal edema in his right eye; however, a cherry red spot on the macula was not detected. Fluorescein angiography revealed delayed dye inflow into the nasal choroidal hemisphere that is supplied by the short posterior ciliary artery. The following day, the patient’s visual acuity improved to 20/20. Soft exudates around the optic disc increased during observation and gradually disappeared. His hemodynamic parameters revealed subclavian steal syndrome as examined by cervical ultrasonography and digital subtraction angiography. We speculate that his transient blindness was due to ophthalmic artery spasms. In this particular case, spasms of the ophthalmic artery and occlusion of the short posterior ciliary artery occurred simultaneously. As the short posterior ciliary artery branches from the ophthalmic artery, the anatomical location of the lesion might be near the branching of both arteries.

  18. Risk of Lyme disease development after a tick bite

    Directory of Open Access Journals (Sweden)

    Mladenović Jovan

    2010-01-01

    Full Text Available Background/Aim. Despite numerous research of Lyme disease (LD, there are still many concerns about environmental of infectious agent of LD, as well as its prophylaxis, diagnosis and treatment. The aim of this work was to determine the risk of LD in relation to the way of removing ticks and duration of tick attachment. Methods. In the period from 2000 to 2007 a prospective study was conducted including persons with tick bite referred to the Institute of Epidemiology, Military Medical Academy, and followed for the occurrence of early Lyme disease up to six months after a tick bite. Epidemiological questionnaire was used to collect relevant information about the place and time of tick bites, the way of a removing tick, duration of tick attachment, remnants of a tick left in the skin (parts of the mouth device and the signs of clinical manifestations of LD. Duration of tick attachment was determined on the basis of size of engorged tick and epidemiological data. Removed ticks were determined by the key of Pomerancev. Professional removing of attached tick was considered to be removing of tick with mechanical means by healthcare personnel. Fisher's exact test, Chi squares test and calculation of the relative risk (RR were used for data analysis. Results. Of 3 126 patients with tick bite, clinical manifestations of LD were demonstrated in 19 (0.61%. In the group of subjects (n = 829 in which a tick was not removed professionally there were 17 (2.05% cases with LD, while in the group of respondents (n=2 297 in who a tick was removed professionally there were 2 (0.09% cases with LD after tick bite (RR, 23.55; p < 0.0001. The disease was most frequent in the group of respondents with incompletely and unprofessionally removed ticks (2.46%. In the groups of patients with unprofessionally but completely removed ticks LD occurred in 0.89%, while in the group of subjects with a tick removed by an expert, but incompletely in 0.78% cases. The disease occurred

  19. Bite force in patients with functional disturbances of the masticatory system.

    Science.gov (United States)

    Helkimo, E; Carlsson, G E; Carmeli, Y

    1975-10-01

    In thirty patients (24 women and 6 men) treated because of dysfunction of the masticatory system at the department of Stomatognathic Physiology, University of Gothenburg, bite force was registered before, during and after treatment had been completed. In the controls, thirty-six dental students and trainee dental nurses, with no dysfunction of the masticatory system, bite force was registered on two occasions. Bite force was measured between the first molars on each side and between the central incisors. Also finger force was registered. The force measurements were made at five different levels, increasing from very weak to maximum force. Repeated tests of bite force in the control group, made at intervals of about 1 week, gave almost identical results. Bite force in the patient group was lower than in the control group at the first registration but increased with palliation of the symptoms during treatment. There was no significant difference in bite force between the affected and the unaffected side.

  20. A new bite block for panoramic radiographs of anterior edentulous patients: A technical report

    OpenAIRE

    Park, Jong-Woong; Symkhampha, Khanthaly; Huh, Kyung-Hoe; Yi, Won-Jin; Heo, Min-Suk; Lee, Sam-Sun; Choi, Soon-Chul

    2015-01-01

    Purpose Panoramic radiographs taken using conventional chin-support devices have often presented problems with positioning accuracy and reproducibility. The aim of this report was to propose a new bite block for panoramic radiographs of anterior edentulous patients that better addresses these two issues. Materials and Methods A new panoramic radiography bite block similar to the bite block for dentulous patients was developed to enable proper positioning stability for edentulous patients. The...

  1. Bite by a dog under provocation: is it free from risk?

    Science.gov (United States)

    Dutta, J K

    2002-05-01

    There is a common belief that rabid dogs bite without provocation, hence a dog bite under provocation is free from the risk of rabies. This is not always true as is evident from the case report narrated below. Here in this article, a man of 38 years was bitten by a dog under provocation. He developed rabies 4 months after the bite and subsequently died. Autopsy revealed Negri bodies from the brain tissue.

  2. An uncommon initial presentation of snake bite-subarachnoid hemorrhage: A case report with literature review

    OpenAIRE

    Manoj Kumar Roy; Joydip Dutta; Apratim Chatterjee; Anup Sarkar; Koushik Roy; Rakhesh Agarwal; Durjoy Lahiri; Amrito Biswas; Anupam Mondal; Pranab Maity; Jotideb Mukhopadhyay

    2015-01-01

    Snake bites are very common in India, particularly in West Bengal. Snake bite can cause various hematological, neuromyopathical complications. It can be very fatal if not detected and treated early. Timely intervention can save the patient. We are reporting a case of hematotoxic Russell viper snake bite presented with subarachnoid hemorrhage. Patient was successfully treated with antivenom serum (AVS) along with other conservative management. Subarachnoid hemorrhage as an initial presentation...

  3. Modeling self-occlusions in dynamic shape and appearance tracking

    KAUST Repository

    Yang, Yanchao

    2013-12-01

    We present a method to track the precise shape of a dynamic object in video. Joint dynamic shape and appearance models, in which a template of the object is propagated to match the object shape and radiance in the next frame, are advantageous over methods employing global image statistics in cases of complex object radiance and cluttered background. In cases of complex 3D object motion and relative viewpoint change, self-occlusions and disocclusions of the object are prominent, and current methods employing joint shape and appearance models are unable to accurately adapt to new shape and appearance information, leading to inaccurate shape detection. In this work, we model self-occlusions and dis-occlusions in a joint shape and appearance tracking framework. Experiments on video exhibiting occlusion/dis-occlusion, complex radiance and background show that occlusion/dis-occlusion modeling leads to superior shape accuracy compared to recent methods employing joint shape/appearance models or employing global statistics. © 2013 IEEE.

  4. Occlusion detection via structured sparse learning for robust object tracking

    KAUST Repository

    Zhang, Tianzhu

    2014-01-01

    Sparse representation based methods have recently drawn much attention in visual tracking due to good performance against illumination variation and occlusion. They assume the errors caused by image variations can be modeled as pixel-wise sparse. However, in many practical scenarios, these errors are not truly pixel-wise sparse but rather sparsely distributed in a structured way. In fact, pixels in error constitute contiguous regions within the object’s track. This is the case when significant occlusion occurs. To accommodate for nonsparse occlusion in a given frame, we assume that occlusion detected in previous frames can be propagated to the current one. This propagated information determines which pixels will contribute to the sparse representation of the current track. In other words, pixels that were detected as part of an occlusion in the previous frame will be removed from the target representation process. As such, this paper proposes a novel tracking algorithm that models and detects occlusion through structured sparse learning. We test our tracker on challenging benchmark sequences, such as sports videos, which involve heavy occlusion, drastic illumination changes, and large pose variations. Extensive experimental results show that our proposed tracker consistently outperforms the state-of-the-art trackers.

  5. Object tracking by occlusion detection via structured sparse learning

    KAUST Repository

    Zhang, Tianzhu

    2013-06-01

    Sparse representation based methods have recently drawn much attention in visual tracking due to good performance against illumination variation and occlusion. They assume the errors caused by image variations can be modeled as pixel-wise sparse. However, in many practical scenarios these errors are not truly pixel-wise sparse but rather sparsely distributed in a structured way. In fact, pixels in error constitute contiguous regions within the object\\'s track. This is the case when significant occlusion occurs. To accommodate for non-sparse occlusion in a given frame, we assume that occlusion detected in previous frames can be propagated to the current one. This propagated information determines which pixels will contribute to the sparse representation of the current track. In other words, pixels that were detected as part of an occlusion in the previous frame will be removed from the target representation process. As such, this paper proposes a novel tracking algorithm that models and detects occlusion through structured sparse learning. We test our tracker on challenging benchmark sequences, such as sports videos, which involve heavy occlusion, drastic illumination changes, and large pose variations. Experimental results show that our tracker consistently outperforms the state-of-the-art. © 2013 IEEE.

  6. OCULAR MANIFESTATION AND LONG STANDING VISUAL IMPAIRMENT FOLLOWING VENOMOUS SNAKE BITE

    Directory of Open Access Journals (Sweden)

    Somnath

    2015-06-01

    Full Text Available OBJECTIVE : Snake bite is an environmental hazard associated with significant ocular morbidity and some have sight threatening complications . Objective of this study was to determine the ocular manifestations and long standing visual impairment fo llowing snake bite and to acquaint the ophthalmologists and related health professionals about the sight threatening ocular complications related to snake bite . METHODS : Prospective data was collected from the Dept . of Internal Medicine , Burdwan Medical Co llege , a rural based tertiary care hospital in eastern India . All snake bite patients admitted in the Department of Internal Medicine were examined and all patients with ocular manifestations were included in the study . RESULTS : Out of 245 cases of snake b ite , 51 ( 27 . 27% cases of venomous snake bite with ocular findings were included in this study . Thirty three ( 64 . 71% out of 51 were vasculotoxic and 18 ( 35 . 29% were neurotoxic in nature . Commonest ocular manifestation of neurotoxic bite was ptosis , followed by diplopia , ophthalmoplegia and optic neuritis . In vasculotoxic snake bites retinal and vitreous hemorrhage ( 36 . 36% was most common followed by subconjunctival hemorrhage and chemosis ( 27 . 28% , lid oedema ( 18 . 18% , hyphaema ( 12 . 12% and anterior uveitis ( 6 . 06% . Causes of long standing visual impairment were retinal hemorrhage in one patient and vitreous hemorrhage in two patients . CONCLUSIONS : Ocular morbidity following snake bite were more common among young males . Majority of long standing vis ual impairment were associated with vasculotoxic snake bite and required long term follow - up .

  7. Bite Force and Pattern Measurements for Dental Pain Assessment in the Rat

    Science.gov (United States)

    Khan, Junad; Benoliel, Rafael; Herzberg, Uri; Mannes, Andrew J.; Caudle, Robert M.; Young, Andrew; Eliav, Eli

    2008-01-01

    We present simple method to assess dental pain in the awake rat. Using a sensitive strain gauge we examined changes in bite strength and bite pattern in rats following dental injury. Rats with dental injury displayed a significant reduction in mean peak bite strength and an altered bite-cluster pattern. Both changes in the dental injury rats were reversed by an analgesic dose of morphine, and this could be reversed with naloxone. These changes were not observed in naive control animals. This simple method significantly improves our ability to evaluate dental pain syndromes. PMID:18926882

  8. SNAKE BITE, SNAKE VENOM, ANTI-VENOM AND HERBAL ANTIDOTE – A REVIEW

    OpenAIRE

    Paul Rita; Datta K. Animesh; Mandal Aninda; Ghosh K Benoy; Halder Sandip

    2011-01-01

    The mortality associated with snake bites is a serious public health problem as the estimated death incidence per year is about 1,25,000 globally. In India about 35,000 to 50,000 people reportedly die of snake bite; although, unreported cases may be even more in rural areas. Considering the socio-medical problem due to snake bite, a review is being conducted on snake bite (management aspects), snake venom (nature and its utility), anti-venom and herbal antidote to provide adequate information...

  9. Snake bite: Biochemical changes in blood after envenomation by viper and cobra

    Directory of Open Access Journals (Sweden)

    M.P. Basheer

    2011-01-01

    Full Text Available Snake bite poisoning is a significant cause of mortality and morbidity in tropical and sub-tropical countries like India. The present study was taken up to evaluate the biochemical changes in snake bite cases in different time periods. The clotting time (C.T was 55.83±38.5 in viper bite cases, much higher than in controls, 5.07±1.33, which was normalized after anti venom administration; however no significant changes were observed in cobra bite cases. Thus evaluation of C.T. may help to differentiate viper bites from cobra bites and to choose specific mono-valent anti-venom treatment. The blood urea level in viper bite cases increased significantly after the sixth hour: 58.19±27.6 mg% in cases; 25.80±4.9mg% in controls. Since anti-venom does not decrease the blood urea to normal, dialysis is required for normalization of urea level. Blood creatinine level in the majority of viper bite cases was found to be increased (1.60–7.4 mg% after the sixth hour, where as in cobra bite cases it was found only in 9% (1.5-2mg%; this increased creatinine level in viper bite cases caused the renal failure. Sodium and potassium levels were not increased in both cobra and viper bite cases, up to the fourth day. However, in 50% of viper bite cases, significant elevation in sodium level was observed on 5th and 6th day, due to the secondary effect of renal failure. 50% of the viper and cobra bite cases showed rise in potassium level on the sixth day which ranged between 5.1– 4.14 mEq/litre. No significant difference was observed in serum calcium level between viper and cobra bite cases. In the present study, clotting time increases immediately after viper bite, detection of which within six hours is a good indicator of envenomation by viper bite. The other biochemical parameters would be helpful to assess the severity of renal failure predominant after six hours of envenomation.

  10. An uncommon initial presentation of snake bite-subarachnoid hemorrhage: A case report with literature review.

    Science.gov (United States)

    Roy, Manoj Kumar; Dutta, Joydip; Chatterjee, Apratim; Sarkar, Anup; Roy, Koushik; Agarwal, Rakhesh; Lahiri, Durjoy; Biswas, Amrito; Mondal, Anupam; Maity, Pranab; Mukhopadhyay, Jotideb

    2015-01-01

    Snake bites are very common in India, particularly in West Bengal. Snake bite can cause various hematological, neuromyopathical complications. It can be very fatal if not detected and treated early. Timely intervention can save the patient. We are reporting a case of hematotoxic Russell viper snake bite presented with subarachnoid hemorrhage. Patient was successfully treated with antivenom serum (AVS) along with other conservative management. Subarachnoid hemorrhage as an initial presentation in viper bite is very rare and we discuss the case with proper literature review. PMID:26425018

  11. Snake bite: Biochemical changes in blood after envenomation by viper and cobra

    OpenAIRE

    M.P. Basheer; K.M. Pradeep Kumar

    2011-01-01

    Snake bite poisoning is a significant cause of mortality and morbidity in tropical and sub-tropical countries like India. The present study was taken up to evaluate the biochemical changes in snake bite cases in different time periods. The clotting time (C.T) was 55.83±38.5 in viper bite cases, much higher than in controls, 5.07±1.33, which was normalized after anti venom administration; however no significant changes were observed in cobra bite cases. Thus evaluation of C.T. may help to diff...

  12. An uncommon initial presentation of snake bite-subarachnoid hemorrhage: A case report with literature review

    Directory of Open Access Journals (Sweden)

    Manoj Kumar Roy

    2015-01-01

    Full Text Available Snake bites are very common in India, particularly in West Bengal. Snake bite can cause various hematological, neuromyopathical complications. It can be very fatal if not detected and treated early. Timely intervention can save the patient. We are reporting a case of hematotoxic Russell viper snake bite presented with subarachnoid hemorrhage. Patient was successfully treated with antivenom serum (AVS along with other conservative management. Subarachnoid hemorrhage as an initial presentation in viper bite is very rare and we discuss the case with proper literature review.

  13. Mortality following snake bite envenomation by Bitis arietans in an HIV positive child: A case report.

    Science.gov (United States)

    Firth, Gregory B; Street, Matthew; Ramguthy, Yammesh; Doedens, Linda

    2016-07-01

    Snake bites occur commonly in the rural areas of South Africa. Hospitals where snake bites are uncommon should always have protocols on standby in the event of such cases presenting. This is the first reported case documenting the effect of human immunodeficiency virus (HIV) on snake bite in South African children.A case report and review of relevant information about the case was undertaken.We present a case of a 1-year-old child referred from a peripheral hospital following a snake bite to the left upper limb with a compartment syndrome and features of cytotoxic envenomation. The patient presented late with a wide area of necrotic skin on the arm requiring extensive debridement. The underlying muscle was not necrotic. Polyvalent antivenom (South African Institute of Medical Research Polyvalent Snakebite Antiserum) administration was delayed by 4 days after the snake bite. The patient was also diagnosed with HIV and a persistent thrombocytopenia possibly due to both HIV infection and the snake bite venom. Lower respiratory tract infections with subsequent overwhelming sepsis ultimately resulted in the child's death.The case highlights the challenge of treating a snake bite in a young child with HIV and the detrimental outcome of delayed treatment. A protocol is essential in the management of snake bites in all hospitals.Level IV, Case report.This case highlights the interaction of snake bite envenomation and HIV infection on thrombocytopenia. PMID:27399076

  14. Identifikasi bite marks dengan ekstraksi DNA metode Chelex (Bite marks identification with Chelex methods in DNA extraction

    Directory of Open Access Journals (Sweden)

    Imelda Kristina Sutrisno

    2013-06-01

    Full Text Available Background: In the case of crime often encountered evidence in bite marks form that was found on the victim’s body. Generally, bitemarks identification use standard techniques that compare the interpretation picture with the tooth model of suspected person. However, sometimes the techniques do not obtain accurate results. Therefore another technique is needed to support the identification process,such as DNA analysis that use the remaining epithelium attached in saliva to identify the DNA of the suspected person. In this processes a limited DNA material could be met, not only less in quantity but also less in quality. Chelex known as one of an effective DNA extraction method in DNA forensic case is needed to overcome this problem. Purpose: The study was aimed to examine the use of Chelex as DNA extraction method on a bitemarks sample models. Methods: The blood and bitemarks of 5 persons with were taken. The DNA of each subject was exctracted with Chelex and quantified the quantity with UV Spechtrophotometer. The DNA results was amplified by PCR at locus vWA and TH01 then vizualised by electrophoresis. Results: The electrophoresis’s results showed band at locus vWA and TH01 for blood sample and bite marks with no significant differences. Conclusion: The study showed that Chelex method could be use to extract DNA from bitemarks.Latar belakang: Dalam kasus kejahatan sering dijumpai bukti dalam bentuk bekas gigitan (bitemarks yang ditemukan pada tubuh korban. Umumnya, untuk mengidentifikasi bite marks menggunakan teknik standar yaitu membandingkan foto interpretasi dengan model gigi dari orang yang dicurigai. Namun demikian teknik ini terkadang tidak mendapatkan hasil yang akurat, sehingga diperlukan teknik lain untuk menunjang keberhasilan proses identifikasi pelaku, yakni melalui analisis DNA bitemarks, yang diperoleh dari saliva yang mengandung sisa epitel tersangka pelaku. Sampel DNA yang berasal dari bitemarks umumnya terbatas, tidak hanya

  15. Correlation study of the relationship between gravity center movement and bite force during the mixed dentition period%混合牙列期身体重心动摇和咬合力的相关性研究

    Institute of Scientific and Technical Information of China (English)

    杜小沛; 纪莹; 陆海涛; 张婷婷; 邱伟

    2016-01-01

    目的:调查混合牙列期身体重心动摇与咬合力之间的关系。方法56名处于Hellman咬合发育Ⅲ期A阶段的健康小学生纳入研究。通过检查咬合平衡中点与中线的距离( X)关系,X≤5 mm被划分为正中组,X>5 mm被划分为偏移组。使用自动姿态分析系统测定了身体平衡相关开闭眼时的重心动摇距离、重心动摇面积。使用牙齿压力感应装置Dental Prescale®测定了咬合接触面积、平均咬合力、最大咬合压力,咬合力和咬合平衡。结果咬合接触面积和咬合力的测试结果男女分别为18.1 mm2、712.2 N和14.1 mm2、541.8 N,差异均具有统计学意义(P<0.05)。咬合平衡中点正中组与偏移组的咬合接触面积、咬合力之间差异具有统计学意义(P <0.05)。咬合平衡中点正中组开、闭眼时期的重心动摇距离、面积明显小于偏移组,咬合平衡与开、闭眼时期的重心动摇距离、面积有关且具有统计学意义(P<0.05)。重心动摇稳定组的咬合接触面积大于动摇组,两者差异具有统计学意义(P<0.05)。结论 Hellman咬合发育Ⅲ期A阶段儿童咬合平衡和人体重心动摇存在相关性,咬合接触面积与身体重心动摇相互影响。%Objective To investigate the relationship between gravity center movement and bite force during the mixed dentition period. Methods Fifty-six healthy children with Hellman's Dental AgeⅢ A were selected from an ele-mentary school. The body balance, distance and area of gravity center movement ( GCM) were measured with automatic posture analytical devices. Occlusal abilities were measured with pressure-sensitive sheets ( Dental Prescale® ) , including occlusal contacts area, average occlusal pressure, maximum occlusal pressure, occlusal force and occlusal balance. Re-sults The occlusal contact area and bite force test results of male and female group were 18. 1 mm2 , 712. 2 N and 14. 1 mm2, 541. 8 N, The differences were statistically

  16. [Intestinal occlusion and abdominal compartment syndrome (ACS)].

    Science.gov (United States)

    Stagnitti, Franco

    2009-01-01

    Intestinal occlusion is defined as an independent predictive factor of intra-abdominal hypertension (IAH) which represents an independent predictor of mortality. Baggot in 1951 classified patients operated with intestinal occlusion as being at risk for IAH ("abdominal blow-out"), recommending them for open abdomen surgery proposed by Ogilvie. Abdominal surgery provokes IAH in 44.7% of cases with mortality which, in emergency, triples with respect to elective surgery (21.9% vs 6.8%). In particular, IAH is present in 61.2% of ileus and bowel distension and is responsible for 52% of mortality (54.8% in cases with intra-abdominal infection). These patients present with an increasing intra-abdominal pressure (IAP) which, over 20-25 mmHg, triggers an Abdominal Compartment Syndrome (ACS) with altered functions in some organs arriving at Multiple Organ Dysfunction Syndrome (MODS). The intestine normally covers 58% of abdominal volume but when there is ileus distension, intestinal pneumatosis develops (third space) which can occupy up to 90% of the entire cavity. At this moment, Gastro Intestinal Failure (GIF) can appear, which is a specific independent risk factor of mortality, motor of "Organ Failure". The pathophysiological evolution has many factors in 45% of cases: intestinal pneumatosis is associated with mucosal and serous edema, capillary leakage with an increase in extra-cellular volume and peritoneal fluid collections (fourth space). The successive loss of the mucous barrier permits a bacterial translocation which includes bacteria, toxins, pro-inflammatory factors and oxygen free radicals facilitating the passage from an intra-abdominal to inter-systemic vicious cyrcle. IAH provokes the raising of the diaphragm, and vascular and visceral compressions which induce hypertension in the various spaces with compartmental characteristics. These trigger hypertension in the renal, hepatic, pelvic, thoracic, cardiac, intracranial, orbital and lower extremity areas, giving

  17. Bilateral Central Retinal Vein Occlusions Combined with Artery Occlusions in A Patient with Acquired Immune Deficiency Syndrome

    Institute of Scientific and Technical Information of China (English)

    Feng Wen; Xuemei Chen; Haitai Li; Ruiduan Liao; Dezheng Wu

    2002-01-01

    Purpose: This is the first report of a bilateral nonischemic central retinal vein occlusionscombined with artery occlusions in a patient with acquired immune deficiency syndrome(AIDS). Methods: Case report. Results: A 22-year-old Chinese(male) with a positive human immunodeficiency virus(HIV) infection developed bilateral nonischemic central retinal vein occlusions combinedwith artery occlusions and severe vision loss. The manifestations of the fundus andfluorescein angiography were similar in both eyes.Conclusion: This case report provides the evidences that central retinal vein and arteryocclusions are probably part of the spectrum of AIDS vascular diseases.

  18. Fetal MRI in experimental tracheal occlusion

    Energy Technology Data Exchange (ETDEWEB)

    Wedegaertner, Ulrike [Department of Diagnostic and Interventional Radiology, Universitaetsklinikum Hamburg-Eppendorf, Martinistrasse 52, 20251 Hamburg (Germany)]. E-mail: wedegaer@uke.uni-hamburg.de; Schroeder, Hobe J. [Experimental Gynecology, Department of Obstetrics and Prenatal Medicine, Universitaetsklinikum Hamburg-Eppendorf, Hamburg (Germany); Adam, Gerhard [Department of Diagnostic and Interventional Radiology, Universitaetsklinikum Hamburg-Eppendorf, Hamburg (Germany)

    2006-02-15

    Congenital diaphragmatic hernia (CDH) is associated with a high mortality, which is mainly due to pulmonary hypoplasia and secondary pulmonary hypertension. In severely affected fetuses, tracheal occlusion (TO) is performed prenatally to reverse pulmonary hypoplasia, because TO leads to accelerated lung growth. Prenatal imaging is important to identify fetuses with pulmonary hypoplasia, to diagnose high-risk fetuses who would benefit from TO, and to monitor the effect of TO after surgery. In fetal imaging, ultrasound (US) is the method of choice, because it is widely available, less expensive, and less time-consuming to perform than magnetic resonance imaging (MRI). However, there are some limitations for US in the evaluation of CDH fetuses. In those cases, MRI is helpful because of a better tissue contrast between liver and lung, which enables evaluation of liver herniation for the diagnosis of a high-risk fetus. MRI provides the ability to determine absolute lung volumes to detect lung hypoplasia. In fetal sheep with normal and hyperplastic lungs after TO, lung growth was assessed on the basis of cross-sectional US measurements, after initial lung volume determination by MRI. To monitor fetal lung growth after prenatal TO, both MRI and US seem to be useful methods.

  19. Vertebrobasilar occlusions. Pathophysiology, diagnostics and treatment

    International Nuclear Information System (INIS)

    Acute vertebrobasilar occlusions (VBO) are dramatic clinical events with a mortality of up to 90% under standard medical treatment. If VBO is suspected a diagnosis of the vessel status has to be achieved immediately. For this purpose CT/CTA and MRI/MRA are equivalent diagnostic tools in the emergency setting. In contrast to the anterior circulation, local endovascular treatment is the established therapy for the posterior circulation as an underlying arteriosclerotic stenosis remains in 50% of the cases after intravenous fibrinolysis. Nevertheless, systemic fibrinolysis is considered the preferred option in cases where a neurointerventional center cannot be reached within a reasonable time frame and the patient can subsequently be transported for local therapy of a residual stenosis in order to prevent reocclusion (''drip and ship''). Profound clinical and pathophysiological knowledge is the absolute prerequisite for the correct application of state-of-the-art neurointerventional therapy. This review paper focuses on the clinical and pathophysiological details that are crucial for decision-making. (orig.)

  20. Fetal MRI in experimental tracheal occlusion

    International Nuclear Information System (INIS)

    Congenital diaphragmatic hernia (CDH) is associated with a high mortality, which is mainly due to pulmonary hypoplasia and secondary pulmonary hypertension. In severely affected fetuses, tracheal occlusion (TO) is performed prenatally to reverse pulmonary hypoplasia, because TO leads to accelerated lung growth. Prenatal imaging is important to identify fetuses with pulmonary hypoplasia, to diagnose high-risk fetuses who would benefit from TO, and to monitor the effect of TO after surgery. In fetal imaging, ultrasound (US) is the method of choice, because it is widely available, less expensive, and less time-consuming to perform than magnetic resonance imaging (MRI). However, there are some limitations for US in the evaluation of CDH fetuses. In those cases, MRI is helpful because of a better tissue contrast between liver and lung, which enables evaluation of liver herniation for the diagnosis of a high-risk fetus. MRI provides the ability to determine absolute lung volumes to detect lung hypoplasia. In fetal sheep with normal and hyperplastic lungs after TO, lung growth was assessed on the basis of cross-sectional US measurements, after initial lung volume determination by MRI. To monitor fetal lung growth after prenatal TO, both MRI and US seem to be useful methods

  1. Clinical trials in branch retinal vein occlusion

    Directory of Open Access Journals (Sweden)

    Tandava Krishnan Panakanti

    2016-01-01

    Full Text Available Branch retinal vein occlusion (BRVO is the second most common retinal vascular disorder. The management of macular edema has changed considerably over time. The laser is considered the gold standard treatment for over two decades. However, visual recovery with laser is usually slow and incomplete. The advent of intravitreal agents, specifically anti-vascular endothelial growth factors (VEGF have heralded a new era which promises rapid recovery of vision and quality of vision. Randomized clinical trials have reported optimal results with anti-VEGF agents (ranibizumab, bevacizumab, and aflibercept compared to laser therapy or steroids. However, nearly 50% of the patients require repeat intravitreal anti-VEGF therapy up to 4 years after initiating therapy to sustain the visual gains. The adverse events (systemic and ocular of these agents are minimal. Monotherapy with anti-VEGF agents have been found to provide better results than any combination with laser. This review article summarizes evidence from randomized controlled trials evaluating treatment options for the treatment of macular edema secondary to BRVO with a special focus on anti-VEGF therapy.

  2. Dog bite injuries in children: a preliminary survey.

    Science.gov (United States)

    Gandhi, R R; Liebman, M A; Stafford, B L; Stafford, P W

    1999-09-01

    Dog bite injuries in children are a preventable health problem. To characterize this type of injury, we have undertaken to define demographic criteria and patterns of injury inflicted by dogs in our pediatric population. A retrospective chart review was conducted of pediatric patients with dog bite injuries admitted to a Level I pediatric trauma center from January 1986 through June 1998. Patient demographics, canine characteristics, and hospital patient data were collected and analyzed using the Excel program and appropriate statistical methodology. There were 67 patient records reviewed. Thirty-eight (57%) of the patients were male, and 29 (43%) were female. There were 43 (64%) white children, 22 (33%) African-American children, and 2 (3%) Hispanic children. The average age of the children was 6.2 +/- 4.2 years, with an average weight of 23.3 +/- 13.7 kg. More than half the attacks occurred in the afternoon and 55 per cent of these attacks were documented as "unprovoked" attacks. Thirty-one (46%) of these attacks involved family pets, and 30 (45%) dogs were known to the attacked child. The head and neck was involved in greater than 67 per cent of these injuries. Pit bulls caused 25 per cent of the bite injuries. Large dogs were responsible for 88 per cent of the attacks. Forty-four (66%) patients required operative intervention. Twenty-eight of these patients had multiple anatomical areas injured. There were 44 procedures involving the head and neck, 21 involving extremities, and 6 involving other areas of the body. All patients 5 years of age and under had head and neck injuries. Dog bite injuries requiring admission occur more in male children. Caucasian and African American children were the majority of children affected. The children under 5 years of age suffered the most devastating injuries. More than half of these attacks were not provoked. More than two-thirds of the injuries to these children involved the head and neck. We conclude that effective

  3. Deaths From Bites and Stings of Venomous Animals

    OpenAIRE

    Ennik, Franklin

    1980-01-01

    Data abstracted from 34 death certificates indicate that the three venomous animal groups most often responsible for human deaths in California from 1960 through 1976 were Hymenoptera (bees, wasps, ants and the like) (56 percent), snakes (35 percent) and spiders (6 percent). An average incidence of 2.0 deaths per year occurred during these 17 years, or an average death rate of 0.01 per 100,000 population per year. Nearly three times more males than females died of venomous animal bites and st...

  4. Zone 3 ruptured globe from a dog bite.

    Science.gov (United States)

    Erickson, Benjamin P; Cavuoto, Kara; Rachitskaya, Aleksandra

    2015-02-01

    Periocular injuries from dog bites are relatively common in school-age children, but intraocular trauma is exceedingly rare. We present a 7-year-old boy who sustained a zone 3 ruptured globe injury after attack by a Perro de Presa Canario. At presentation, visual acuity in the injured eye was counting fingers. Surgical exploration revealed an inferotemporal corneoscleral laceration extending 15 mm posterior to the limbus, with protrusion of uveal tissue, which was repaired. Visual acuity improved to 20/40 by the first postoperative month. PMID:25727600

  5. Human Bite of a Staff Nurse on a Psychiatric Unit.

    Science.gov (United States)

    Suguna, Anbazhagan; Joseph, Bobby

    2016-04-01

    Occupational violence among health care professionals is a cause for concern, although often neglected especially in developing countries like India. Violence undermines the healing mission of the health care organization and interferes with the ability of the health care team to optimally contribute to positive patient outcomes. The authors discuss a case of a human bite of a staff nurse on a psychiatric unit in a tertiary care Indian hospital. The reported violence against this staff nurse lead to her admission for emergency care followed by emotional stress. Issues related to prevention of occupational violence are also discussed. PMID:26245465

  6. Celiac artery stenosis/occlusion treated by interventional radiology

    Energy Technology Data Exchange (ETDEWEB)

    Ikeda, Osamu [Department of Diagnostic Radiology, Kumamoto University Graduate School of Medical and Pharmaceutical Sciences, 1-1-1, Honjo Kumamoto 860-8505 (Japan)], E-mail: osamu-3643ik@do9.enjoy.ne.jp; Tamura, Yoshitaka; Nakasone, Yutaka; Yamashita, Yasuyuki [Department of Diagnostic Radiology, Kumamoto University Graduate School of Medical and Pharmaceutical Sciences, 1-1-1, Honjo Kumamoto 860-8505 (Japan)

    2009-08-15

    Severe stenosis/occlusion of the proximal celiac trunk due to median arcuate ligament compression (MALC), arteriosclerosis, pancreatitis, tumor invasion, and celiac axis agenesis has been reported. However, clinically significant ischemic bowel disease attributable to celiac axis stenosis/occlusion appears to be rare because the superior mesenteric artery (SMA) provides for rich collateral circulation. In patients with celiac axis stenosis/occlusion, the most important and frequently encountered collateral vessels from the SMA are the pancreaticoduodenal arcades. Patients with celiac artery stenosis/occlusion are treated by interventional radiology (IR) via dilation of the pancreaticoduodenal arcade. In patients with dilation of the pancreaticoduodenal arcade on SMA angiograms, IR through this artery may be successful. Here we provide several tips on surmounting these difficulties in IR including transcatheter arterial chemoembolization for hepatocellular carcinoma, an implantable port system for hepatic arterial infusion chemotherapy to treat metastatic liver tumors, coil embolization of pancreaticoduodenal artery aneurysms, and arterial stimulation test with venous sampling for insulinomas.

  7. Celiac artery stenosis/occlusion treated by interventional radiology

    International Nuclear Information System (INIS)

    Severe stenosis/occlusion of the proximal celiac trunk due to median arcuate ligament compression (MALC), arteriosclerosis, pancreatitis, tumor invasion, and celiac axis agenesis has been reported. However, clinically significant ischemic bowel disease attributable to celiac axis stenosis/occlusion appears to be rare because the superior mesenteric artery (SMA) provides for rich collateral circulation. In patients with celiac axis stenosis/occlusion, the most important and frequently encountered collateral vessels from the SMA are the pancreaticoduodenal arcades. Patients with celiac artery stenosis/occlusion are treated by interventional radiology (IR) via dilation of the pancreaticoduodenal arcade. In patients with dilation of the pancreaticoduodenal arcade on SMA angiograms, IR through this artery may be successful. Here we provide several tips on surmounting these difficulties in IR including transcatheter arterial chemoembolization for hepatocellular carcinoma, an implantable port system for hepatic arterial infusion chemotherapy to treat metastatic liver tumors, coil embolization of pancreaticoduodenal artery aneurysms, and arterial stimulation test with venous sampling for insulinomas.

  8. Choice PTTM guidewire for recanalization of total occlusive coronary arteries

    Institute of Scientific and Technical Information of China (English)

    OUYANG Ping; HE Shi-hua; CHEN Wei-Kang; WOO Carrie

    2002-01-01

    Objective: To evaluate the therapeutic effects of 0. 014″Choice PTTM wire in chronic total occlusion angioplasty. Methods: Balloon angioplasty was attempted in 25 arteries with chronic total occlusion,with the mean time of occlusion of 17±13 months (ranging from 2 to 84 months) and mean length of 14±6mm (ranging from 5 to 25 mm). The morphology of the lesions included bridging collaterals (4 cases), calcification (3 cases) and major side branch at the lesion (4 cases) . Choice PTTM wire was used electively in all the cases. Results: Lesion was crossed successfully in 92% (23/25) cases, without incidences of dissection of the coronary artery with subintimal entry. Balloon angioplasy and stenting (n=21) were performed with good immediate angiograghic results. Acute myocardial infarction or death occurred in none of the patients.Conclusion Successful recanalization of chronic coronary total occlusions using Choice PTTM wire can be achieved with good safety.

  9. Avoiding occlusal derangement in facial fractures: An evidence based approach

    Directory of Open Access Journals (Sweden)

    Derick Mendonca

    2013-01-01

    Full Text Available Facial fractures with occlusal derangement describe any fracture which directly or indirectly affects the occlusal relationship. Such fractures include dento-alveolar fractures in the maxilla and mandible, midface fractures - Le fort I, II, III and mandible fractures of the symphysis, parasymphysis, body, angle, and condyle. In some of these fractures, the fracture line runs through the dento-alveolar component whereas in others the fracture line is remote from the occlusal plane nevertheless altering the occlusion. The complications that could ensue from the management of maxillofacial fractures are predominantly iatrogenic, and therefore can be avoided if adequate care is exercised by the operating surgeon. This paper does not emphasize on complications arising from any particular technique in the management of maxillofacial fractures but rather discusses complications in general, irrespective of the technique used.

  10. Image Based Solution to Occlusion Problem for Multiple Robots Navigation

    Directory of Open Access Journals (Sweden)

    Taj Mohammad Khan

    2012-04-01

    Full Text Available In machine vision, occlusions problem is always a challenging issue in image based mapping and navigation tasks. This paper presents a multiple view vision based algorithm for the development of occlusion-free map of the indoor environment. The map is assumed to be utilized by the mobile robots within the workspace. It has wide range of applications, including mobile robot path planning and navigation, access control in restricted areas, and surveillance systems. We used wall mounted fixed camera system. After intensity adjustment and background subtraction of the synchronously captured images, the image registration was performed. We applied our algorithm on the registered images to resolve the occlusion problem. This technique works well even in the existence of total occlusion for a longer period.

  11. Height Gradient Approach for Occlusion Detection in Uav Imagery

    Science.gov (United States)

    Oliveira, H. C.; Habib, A. F.; Dal Poz, A. P.; Galo, M.

    2015-08-01

    The use of Unmanned Aerial Vehicle (UAV) significantly increased in the last years. It is used for several different applications, such as mapping, publicity, security, natural disasters assistance, environmental monitoring, 3D building model generation, cadastral survey, etc. The imagery obtained by this kind of system has a great potential. To use these images in true orthophoto generation projects related to urban scenes or areas where buildings are present, it is important to consider the occlusion caused by surface height variation, platform attitude, and perspective projection. Occlusions in UAV imagery are usually larger than in conventional airborne dataset due to the low-altitude and excessive change in orientation due to the low-weight and wind effects during the flight mission. Therefore, this paper presents a method for occlusion detection together with some obtained results for images acquired by a UAV platform. The proposed method shows potential in occlusion detection and true orthophoto generation.

  12. Different Occlusal Schemes in a Persistent Protruding Complete Denture Wearer

    Directory of Open Access Journals (Sweden)

    Carolina Mayumi Iegami

    2016-01-01

    Full Text Available Different types of artificial teeth and occlusal designs can be used in complete dentures. Bilateral balanced occlusion, lingualized occlusion, canine guidance, and monoplane are the main occlusal designs; however there is no agreement on which tooth arrangement is ideal for achieving success in complete dentures. This report presents an alternative for persistent involuntary protruding complete denture wearers through the use of artificial teeth with higher cusps. Due to an old and worn pair of complete dentures, the patient had the habit of protruding. New dentures were made with Biotone artificial teeth and in the trial session, the patient would still protrude. A new set was made with Premium artificial teeth, which present higher cusps. With these dentures, the involuntary protrusion did not occur. From the delivery to the follow-up sessions, the patient stopped protruding.

  13. Different Occlusal Schemes in a Persistent Protruding Complete Denture Wearer.

    Science.gov (United States)

    Iegami, Carolina Mayumi; Lopes, Danilo de Melo; Nakamae, Atlas Edson Moleros; Uehara, Priscila Nakasone; Tamaki, Regina

    2016-01-01

    Different types of artificial teeth and occlusal designs can be used in complete dentures. Bilateral balanced occlusion, lingualized occlusion, canine guidance, and monoplane are the main occlusal designs; however there is no agreement on which tooth arrangement is ideal for achieving success in complete dentures. This report presents an alternative for persistent involuntary protruding complete denture wearers through the use of artificial teeth with higher cusps. Due to an old and worn pair of complete dentures, the patient had the habit of protruding. New dentures were made with Biotone artificial teeth and in the trial session, the patient would still protrude. A new set was made with Premium artificial teeth, which present higher cusps. With these dentures, the involuntary protrusion did not occur. From the delivery to the follow-up sessions, the patient stopped protruding. PMID:27069698

  14. Occlusal accommodation and mouthguards for prevention of orofacial trauma.

    LENUS (Irish Health Repository)

    Geary, Julian Lindsay

    2009-01-01

    The aim of this study was to investigate the effect of two types of occlusal accommodation on the arch separation in centric and eccentric arch positions and to assess the opposing tooth contacts in professionally made, thermoformed sports mouthguards.

  15. Early rethrombosis in femoropopliteal occlusions treated with percutaneous transluminal angioplasty

    DEFF Research Database (Denmark)

    Jørgensen, B; Meisner, S; Holstein, P;

    1990-01-01

    success as well as vascular patency were evaluated. The results were grouped into the following subsets: the indication for PTA, the severity of the vascular lesion, the crural run-off and the length of lesion. The results were in every respect poor with total occlusions when compared with stenoses....... This was explained by a high incidence (41%) of rethrombosis within hours of dilatation. Early rethrombosis was seen with all lengths of occlusion (1-27 cm) with no statistically significant difference from other subsets. This study concludes that conventional PTA in femoropopliteal occlusions should be reserved...... for cases of limb salvage, preferably in patients who are technically inoperable. We suggest a new technique of segmentally enclosed thrombolysis to prevent early rethrombosis after PTA in femoropopliteal occlusions....

  16. Clinical treatment of deep overbite by bite plate comebined with archwire%摇椅弓结合上颌前牙平面导板在打开咬合中的临床应用

    Institute of Scientific and Technical Information of China (English)

    徐春华

    2012-01-01

    Objective To discuss the clinical treatment of deep overbite by archwire combined with bite plate. Methods Twenty-three patients of class Ⅱ deep overbite and severer were treated by archwire combined with bite plate. Results Compared with single use of edgewise appliance, the way of treating deep overbite by archwire combined with bite plate was more effective and cost shorter time than edgewise appliance through hoisting molars and depressing former teeth. Conclusion The way treating deep overbite by archwire combined with bite plate should be applied in clinics for it can undo occlusion quick and effectively.%目的 探讨上颌平面导板结合摇椅弓矫治深覆的临床应用.方法 选择23例深覆Ⅱ度或以上的患者,采用上颌平面导板结合摇椅弓打开咬合以矫治深覆.结果 上颌平面导板结合摇椅弓矫治深覆,与单纯使用方丝弓矫治器相比,通过升高后牙,压低前牙,明显缩短疗程,有效矫治深覆.结论 上颌平面导板结合摇椅弓矫治深覆,能快速打开咬合,矫治的效果比较明值得在临床中广泛应用.

  17. Occlusion-amblyopia following high dose oral levodopa combined with part time patching

    Directory of Open Access Journals (Sweden)

    Mihir Kothari

    2014-01-01

    Full Text Available Part time occlusion therapy is not reported to cause occlusion (reverse amblyopia. However, when combined with high dose oral levodopa, an increase in the plasticity of the visual cortex can lead to occlusion amblyopia. In this case report, we describe a six year old child who developed occlusion amblyopia following part time patching combined with oral levodopa.

  18. Branch retinal vein occlusion associated with quetiapine fumarate

    Directory of Open Access Journals (Sweden)

    Siang Lim

    2011-08-01

    Full Text Available Abstract Background To report a case of branch retinal vein occlusion in a young adult with bipolar mood disorder treated with quetiapine fumarate. Case Presentation A 29 years old gentleman who was taking quetiapine fumarate for 3 years for bipolar mood disorder, presented with sudden vision loss. He was found to have a superior temporal branch retinal vein occlusion associated with hypercholesterolemia. Conclusion Atypical antipsychotic drugs have metabolic side effects which require regular monitoring and prompt treatment.

  19. Trauma from occlusion — An orthodontist’s perspective

    OpenAIRE

    R. Saravanan; Babu, Prajeeth J.; Rajakumar, P.

    2010-01-01

    Orthodontic therapy has a big role in the treatment and prevention of malpositions. The signs and symptoms experienced by patients with occlusal trauma are mobility of teeth, temperomandibular joint pain, pain on mastication and periodontal disease. Early diagnosis, proper treatment plan and correction of malocclusion can lead to a successful outcome. Lack of awareness of orthodontic treatment in patients with occlusal trauma can even lead to loss of tooth structure.

  20. Influence of occlusal splint thickness on the position of mandible

    Institute of Scientific and Technical Information of China (English)

    CHEN Yong-jin; Nagashima T; Nokubi T

    2005-01-01

    Objective: To investigate the influence of occlusal splint thickness on mandibular movement. Methods: Stabilization occlusal splints of 3, 5 and 7 mm thickness were respectively used during clenching from light contact in intercuspal position and the movement of condyles and incisor point were recorded in 5 healthy subjects. Results:The condyles moved anteriorly and superiorly without wearing occlusal splint. When wearing the occlusal splints the condyles displaced anteriorly and inferiorly. The distance of displacement increased gradually with raising the thickness of splint, though the significant difference was just found in right condyle in superior- inferior movement. The condyles went again on a path of anterior and superior direction when subjects clenched from the displaced position. In right condyle the displacement was significantly greater at 7 mm splint than that at 3 mm splint both in anterior-posterior and inferior-superior direction, while in left condyle only in anterior-posterior direction. Meanwhile, the incisal point movement was larger at 7 mm splint than at 3 mm splint in inferior-superior direction. In tapping movement there were no significant differences in condyle movement between the different thickness of occlusal splint. However, the coefficient of variation in total cycle time was the greatest when wearing the splint of 7 mm. Conclusion: Occlusal splint of 7 mm has greater effect than that of 3 mm on condyle movement, but no obvious difference with occlusal splint of 5 mm. When occlusal splint of 7 mm is inserted, the stability of condyle might be influenced during tapping movement.

  1. Effect of Different Occlusion on Facial Expressions Recognition

    OpenAIRE

    Ankita Vyas; Ramchand Hablani

    2014-01-01

    Occlusions around facial parts complicate the task of recognizing facial expressions from their facial images. We propose facial expressions recognition method based on local facial regions, which provides better recognition rate in the presence of facial occlusions. Proposed method uses Uniform Local Binary pattern as a feature extractor, which extract discriminative features from some important parts of facial image. Feature vectors are classified using simplest classifier th...

  2. Prevalence of Orthodontic Treatment Need and Occlusal Traits in Schoolchildren

    OpenAIRE

    Jamilian, Abdolreza; Darnahal, Alireza; Damani, Elnaz; Talaeipour, Maziar; Kamali, Zinat

    2014-01-01

    Background. Widespread use of the IOTN along with detailed study of occlusal traits is suitable for planning community dental health resources. Objectives. The aim of current study was to assess the need for orthodontic treatment among school children of Tehran by means of the Dental Health Component (DHC) of the Index of Orthodontic Treatment Need (IOTN) and also to evaluate the occlusal traits of the subjects. Methods. 684 (343 boys and 341 girls) school children, 15 to 17 years of age, wer...

  3. Plain abdominal film and abdominal ultrasound in intestine occlusion

    International Nuclear Information System (INIS)

    Plain film of the abdomen is widely used in the diagnostic evaluation of intestinal occlusion. Even though this technique can yield a panoramic and high-resolution view of gas-filled intestinal loops, several factors, such as type and duration of occlusion, neurovascular status of the intestine and general patient condition, may reduce the diagnostic specificy of the plain film relative to the organic or functional nature of the occlusion. From 1987 to 1989, fifty-four patients with intestinal occlusion were studied combining plain abdominal film with abdominal ultrasound (US). This was done in order to evaluate whether the additional information obtained from US could be of value in better determining the nature of the ileus. US evaluation was guided by the information already obtained from plain film which better demonstrates gas-filled loops. The results show that in all 27 cases of dynamic ileus (intestinal ischemia, acute appendicitis, acute cholecistis, acute pancreatitis or blunt abdominal trauma) US demonstrates: intestinal loops slightly increased in caliber, with liquid content, or loops containing rare hyperechoic particles, intestinal wall thickening and no peristalsis. In 27 cases of acute, chronic or complicated mechanical ileus (adhesions, internal hernia, intestinal neoplasm, peritoneal seedings) US shows: 1) in acute occlusion: hyperperistaltic intestinal loops containing inhomogeneous liquid; 2) in chronic occlusion: liquid content with a solid echigenic component; 3) in complicated occlusion: liquid stasis, frequent increase in wall thickness, moderate peritoneal effusion and inefficient peristalsis. In conclusion, based on the obtained data, the authors feel that the combination of plain abdominal film and abdominal US can be useful in the work-up of patient with intestinal occlusion. The information provided by US allows a better definition of the nature of the ileus

  4. Veno-occlusive disease of the colon - CT findings

    Energy Technology Data Exchange (ETDEWEB)

    Rademaker, J. [Department of Radiology I, Medical School Hannover (Germany)

    1998-10-01

    Venous occlusion is a rare cause of ischemic bowel disease and is usually brought about by thrombosis that may occur as a complication of systemic disorders like systemic lupus erythematosus, Behcet disease or Churg-Strauss syndrome. This report describes a patient with veno-occlusive disease of the colon caused by lymphocytic phlebitis. Typical CT findings included homogeneous bowel wall thickening and vascular engorgement. (orig.) (orig.) With 1 fig., 4 refs.

  5. Prefrontal Hemodynamic Changes Associated with Subjective Sense of Occlusal Discomfort

    Directory of Open Access Journals (Sweden)

    Yumie Ono

    2015-01-01

    Full Text Available We used functional near-infrared spectroscopy to measure prefrontal brain activity accompanying the physical sensation of oral discomfort that arose when healthy young-adult volunteers performed a grinding motion with mild occlusal elevation (96 μm. We simultaneously evaluated various forms of occlusal discomfort using the visual analogue scale (VAS and hemodynamic responses to identify the specific prefrontal activity that occurs with increased occlusal discomfort. The Oxy-Hb responses of selected channels in the bilateral frontopolar and dorsolateral prefrontal cortices increased in participants who reported increased severity of occlusal discomfort, while they decreased in those who reported no change or decreased occlusal discomfort during grinding. Moreover, the cumulative values of Oxy-Hb response in some of these channels were statistically significant predictive factors for the VAS scores. A generalized linear model analysis of Oxy-Hb signals in a group of participants who reported increased discomfort further indicated significant cerebral activation in the right frontopolar and dorsolateral prefrontal cortices that overlapped with the results of correlation analyses. Our results suggest that the increased hemodynamic responses in the prefrontal area reflect the top-down control of attention and/or self-regulation against the uncomfortable somatosensory input, which could be a possible marker to detect the subjective sense of occlusal discomfort.

  6. BITE-FORCE ENDURANCE IN PATIENTS WITH TEMPOROMANDIBULAR-JOINT OSTEOARTHROSIS AND INTERNAL DERANGEMENT

    NARCIS (Netherlands)

    STEGENGA, B; BROEKHUIJSEN, ML; DEBONT, LGM; VANWILLIGEN, JD

    1992-01-01

    The aim of this study was to investigate the potential clinical relevance of testing bite force endurance in patients with articular temporomandibular disorders. The endurance of a 50 N bite force was measured in 51 patients with painful temporomandibular joint disorders. The results were compared t

  7. Identification of the mosquito biting deterrent constituents from the Indian folk remedy plant Jatropha curcas

    Science.gov (United States)

    An investigation of the Indian folk remedy plant, Jatropha curcas, was performed to specifically identify the constituents responsible for the mosquito biting deterrent activity of the oil as a whole. Jatropha curcas seed oil is burned in oil lamps in India and part of Africa to repel biting insect...

  8. Risk factors for insect bite hypersensitivity in Friesian horses and Shetland ponies in The Netherlands

    NARCIS (Netherlands)

    Schurink, A.; Podesta, S.C.; Ducro, B.J.; Arendonk, van J.A.M.; Frankena, K.

    2013-01-01

    Insect bite hypersensitivity (IBH) is an equine skin allergy caused by bites of Culicoides spp. and impacts on the welfare of affected horses. The aim of this study was to identify and quantify risk factors for IBH. Data from 3453 Friesian horse mares and 7074 Shetland pony mares scored for IBH by i

  9. Rat-bite fever complicated by vertebral osteomyelitis: A case report.

    Science.gov (United States)

    Sato, Ryota; Kuriyama, Akira; Nasu, Michitaka

    2016-08-01

    Rat-bite fever (RBF) is a challenging diagnosis transmitted by the bite of the rats. We present the first reported case of RBF complicated by vertebral osteomyelitis. It is important to consider performing the MRI to differentiate vertebral osteomyelitis from simple back pain to determine the appropriate duration of antibiotic therapy. PMID:26948832

  10. Clinical significance of isometric bite force versus electrical activity in temporal and masseter muscles

    DEFF Research Database (Denmark)

    Bakke, Merete; Michler, L; Han, K;

    1989-01-01

    significant with respect to unilateral, but not to bilateral force measurements. Only in the masseter muscle was strength of dynamic contractions during chewing significantly correlated to bite force. With the present method it was demonstrated that unilateral bite force is a simple clinical indicator...

  11. Human and other mammalian bite injuries of the hand: evaluation and management.

    Science.gov (United States)

    Kennedy, Stephen A; Stoll, Laura E; Lauder, Alexander S

    2015-01-01

    The hand is the most common site for bite injuries. Because of specific characteristics of hand anatomy, bite mechanics, and organisms found in human and animal saliva, even small wounds can lead to aggressive infections. Failure to recognize and treat hand bites can result in significant morbidity. Human and animal bites most commonly lead to polymicrobial bacterial infections with a mixture of aerobic and anaerobic organisms. Pasteurella species are commonly found in dog and cat bite wounds, and Eikenella is characteristic of human wounds. Staphylococcus, Streptococcus, and anaerobic bacterial species are common to all mammals. Although public health measures in developed countries have been highly effective at reducing rabies transmission, dog bites remain the most common source of rabies infection worldwide. Human bites can transmit HIV, hepatitis B, or hepatitis C, especially when contaminated blood is exposed to an open wound. Appropriate management of any mammal bite requires recognition, early wound cleansing, evaluation of injured structures, and infection prophylaxis. Structural repair is performed as indicated by the severity and contamination of the injury, and wounds may require delayed closure. Wound infections typically require débridement, empiric antibiotics, and delayed repair or reconstruction. PMID:25538130

  12. Rapid detection of self-biting disease of mink by specific sequence-characterized amplified regions

    Institute of Scientific and Technical Information of China (English)

    LIU Zong-yue; NING Fang-yong; YANG Hong-yan; WEI Lai; BAI Xiu-juan

    2011-01-01

    Self-biting disease occurred in most farmed fur animals in the world. The mechanism and rapid detection method of this disease has not been reported. We applied bulked sergeant analysis (BSA) in combination with RAPD method to analyze a molecular genetic marker linked with self-biting trait in mink group. The molecular marker was converted into sequence-characterized amplified regions (SCAR) marker for rapid detection of this disease. A single RAPD marker A8 amplified a specific band of 263bp in self-biting minks, which was designated as SRA8-250,and non-specific band of 315bp in both self-biting and healthy minks.The sequences of the bands exhibited 75% and 88% similarity to Canis familiarizes major histocompatibility complex (MHC) class Ⅱ region and Macaca mulatta MHC class Ⅰ region, respectively. A SCAR marker SCAR-A8 was designed for the specific fragment SRA8-250 and validated in 30 self-biting minks and 30 healthy minks. Positive amplification of SCAR-A8 was detected in 24 self-biting minks and 12 healthy minks. x2 test showed significant difference (p<0.01) in the detection rate between the two groups. This indicated that SRA8-250 can be used as a positive marker to detect self-biting disease in minks. Furthermore, the finding that self-biting disease links with MHC genes has significant implications for the mechanism of the disease.

  13. Rope test may indicate efficacy of tail-biting treatments in growing pigs

    NARCIS (Netherlands)

    Bracke, M.B.M.

    2009-01-01

    Tail biting is a most serious welfare problem in pigs raised for slaughter. In instances of an outbreak of tail biting, scientists have recommended that farmers take measures such as removal of affected animals, provision of enrichment materials and application of repellents to the pigs' tails. Howe

  14. TheraBite exercises to treat trismus secondary to head and neck cancer

    NARCIS (Netherlands)

    Kamstra, Jolanda I.; Roodenburg, Jan L. N.; Beurskens, Carien H. G.; Reintsema, Harry; Dijkstra, Pieter U.

    2013-01-01

    The aim of this study was to evaluate the effect of TheraBite exercises on mouth opening and to analyze factors influencing this effect in a patient record evaluation. Effect of exercises with a TheraBite to treat trismus was evaluated in 69 head and neck cancer patients of two university medical ce

  15. Tail Biting in Pigs: Blood Serotonin and Fearfulness as Pieces of the Puzzle?

    NARCIS (Netherlands)

    Ursinus, W.W.; Reenen, van C.G.; Reimert, I.; Bolhuis, J.E.

    2014-01-01

    Tail biting in pigs is a widespread problem in intensive pig farming. The tendency to develop this damaging behaviour has been suggested to relate to serotonergic functioning and personality characteristics of pigs. We investigated whether tail biting in pigs can be associated with blood serotonin a

  16. Common adder bite to the tongue causing life threatening toxicity from airway compromise

    DEFF Research Database (Denmark)

    Hoegberg, Lotte C G; Jessen, Casper L; Lambertsen, Karin;

    2010-01-01

    We illustrate the acute phase and development of symptoms in a 24-year-old man following a European Common Viper bite to the tongue.......We illustrate the acute phase and development of symptoms in a 24-year-old man following a European Common Viper bite to the tongue....

  17. Comparison of Radiography, Laser Fluorescence, and Visual Examination in Diagnosing Incipient OcclusalCaries of Permanent First Molars

    Directory of Open Access Journals (Sweden)

    Zahra Bahrololoomi

    2015-10-01

    Full Text Available Objectives: Early diagnosis of incipient and non cavitated carious lesions is crucial for performing preventive treatments. The aim of this study was to compare the effi- ciency of three diagnostic methods of bite-wing radiography, DIAGNOdent, and visu- al examination in diagnosing the incipient occlusal caries of permanent first molars.Materials and Methods:  In this diagnostic cross-sectional study, 109 premanent first molar teeth of 31 patients aged 7-13 years were examined visually by bite-wing radi- ograghy, and DIAGNOdent. Scoring of visual and radiography examinations were based on the Ekstrand classification. Visual examination after pit and fissure opening was used as the gold standard. ROC curve (Receiver Operating Characteristics was used to define the best cut-off point for DIAGNodent compareing with gold standard and inter-examiner reproductibility of visual, radiography were assessed using Kappa test and ICC (Intraclass Correlation wase used for DIAGNOdent values.Results: The sensitivity of detecting caries that had extended into the enamel was 81.4%, 86.3%, and 81.4% for visual examination, DIAGNOdent, and radiography, respectively. Moreover, the specificity was 100%, 71.4%, and 100% for visual obser- vation, DIAGNOdent, and radiography, respectively in the enamel. The Kappa index for inter-examiner correlation was 0.7 and 0.8 for visual examination and radiog- raphy, respectively. The ICC (Intraclass Correlation was 0.98 for the values read by DIAGNOdent.Conclusion: Visual examination is rendered as the first choice in the diagnosis of in- cipient caries. In suspicious cases, radiography and laser DIAGNOdent can be used as adjunct procedures.

  18. Picaduras y mordeduras de animales Animal sting and bites

    Directory of Open Access Journals (Sweden)

    J. Pastrana

    2003-01-01

    Full Text Available En este tema tratamos las picaduras por artrópodos. Se hace referencia a las diferencias que existen entre las picaduras de avispas y abejas, comentando la composición de venenos y las diferentes reacciones locales y generales que provocan dichas picaduras. Se exponen además las picaduras-mordeduras producidas por escorpiones, arañas, garrapatas, y animales marinos con la clínica que provocan y el tratamiento que es necesario administrar. Por último, se incluyen las mordeduras por serpientes, haciendo referencia a los tipos de ofidios más frecuentes en Navarra, la forma de diferenciar la mordedura de culebras de las víboras, la diferente clínica que provocan, y el tratamiento a aplicar.Under the heading of this subject we deal with stings by arthropods, making reference to the differences that exist between the stings of wasps and bees, commenting on the composition of the poisons and the different local and general reactions that are caused by such stings. Also discussed are the stings/bites caused by scorpions, spiders, ticks, and marine animals, with the clinical picture they provoke and the treatment that must be administered. Finally, snakebites are considered, with reference to the most frequent types of ophidia to be found in Navarra, how to differentiate between the bites of snakes and vipers, the different clinical pictures they provoke and the treatment to be applied

  19. The Protocol of Choice for Treatment of Snake Bite

    Science.gov (United States)

    Mohammad Alizadeh, Afshin; Rahimi, Mitra; Erfantalab, Peyman; Ostadi, Ali

    2016-01-01

    The aim of the current study is to compare three different methods of treatment of snake bite to determine the most efficient one. To unify the protocol of snake bite treatment in our center, we retrospectively reviewed files of the snake-bitten patients who had been referred to us between 2010 and 2014. They were contacted for follow-up using phone calls. Demographic and on-arrival characteristics, protocol used for treatment (WHO/Haddad/GF), and outcome/complications were evaluated. Patients were entered into one of the protocol groups and compared. Of a total of 63 patients, 56 (89%) were males. Five, 19, and 28 patients were managed by Haddad, WHO, or GF protocols, respectively. Eleven patients had fallen into both GF and WHO protocols and were excluded. Serum sickness was significantly more common when WHO protocol was used while 100% of the compartment syndromes and 71% of deformities had been reported after GF protocol. The most important complications were considered to be deformity, compartment syndrome, and amputation and were more frequent after the use of WHO and GF protocols (23.1% versus 76.9%; none in Haddad; P = NS). Haddad protocol seems to be the best for treatment of snake-bitten patients in our region. However, this cannot be strictly concluded because of the limited sample size and nonsignificant P values. PMID:27738653

  20. Sugar-feeding status alters biting midge photoattraction.

    Science.gov (United States)

    Snyder, D; Cernicchiaro, N; Cohnstaedt, L W

    2016-03-01

    The biting midge Culicoides sonorensis Wirth and Jones (Diptera: Ceratopogonidae) transmits pathogens to both livestock and wildlife. Biting midge surveillance relies heavily on light traps for collection; however, little is known about the light spectra preferences of C. sonorensis midges. A light assay arena was constructed and light-emitting diodes (LEDs) of various light spectra were used as light sources to evaluate midge photoattraction. A comparison of responses to light spectra indicated the highest proportions of C. sonorensis were attracted to ultraviolet (UV) light and that midges differentiated 10-nm differences in wavelength. Stronger intensities of UV light resulted in greater attraction. Midges exhibited both sugar-seeking and escape behaviours under different conditions of sugar supplementation before and during the experiment. These behaviours occurred with lights of 355 nm and 365 nm in wavelength. Based on the results of this study, the attraction of C. sonorensis to light traps can be improved through the use of bright LEDs at 355 nm or 365 nm. PMID:26555011

  1. The Protocol of Choice for Treatment of Snake Bite

    Directory of Open Access Journals (Sweden)

    Afshin Mohammad Alizadeh

    2016-01-01

    Full Text Available The aim of the current study is to compare three different methods of treatment of snake bite to determine the most efficient one. To unify the protocol of snake bite treatment in our center, we retrospectively reviewed files of the snake-bitten patients who had been referred to us between 2010 and 2014. They were contacted for follow-up using phone calls. Demographic and on-arrival characteristics, protocol used for treatment (WHO/Haddad/GF, and outcome/complications were evaluated. Patients were entered into one of the protocol groups and compared. Of a total of 63 patients, 56 (89% were males. Five, 19, and 28 patients were managed by Haddad, WHO, or GF protocols, respectively. Eleven patients had fallen into both GF and WHO protocols and were excluded. Serum sickness was significantly more common when WHO protocol was used while 100% of the compartment syndromes and 71% of deformities had been reported after GF protocol. The most important complications were considered to be deformity, compartment syndrome, and amputation and were more frequent after the use of WHO and GF protocols (23.1% versus 76.9%; none in Haddad; P = NS. Haddad protocol seems to be the best for treatment of snake-bitten patients in our region. However, this cannot be strictly concluded because of the limited sample size and nonsignificant P values.

  2. Analysis of cases caused by acute spider bite

    Directory of Open Access Journals (Sweden)

    Zihni Sulaj

    2015-08-01

    Full Text Available We performed a retrospective study of 176 patients in the University Hospital Center of Tirana (Albania, during the period 2001–2011, admitted with the diagnosis of a suspected spider bite. Three fatalities were registered during this decade covered from our study, with a clinical picture of marked hypertension, tachycardia and acute cardiac failure leading to death within a minimum of 25 h and a maximum of 42 h from the occurrence. Out of the total of 176 patients, we had 59% (104 cases females, and 41% males. The overwhelming majority of the patients lived in rural areas (155 of the cases; extremities were mostly affected from the bites. A summary of clinical signs and a brief review of the available literature are made in the results and discussion section of this paper. Authors advocate that special precautions should be taken especially in severe forms of interesting autonomous nerve system, with aggressive fluid resuscitation, supportive therapy and close monitoring of vital signs.

  3. Mechanics of biting in great white and sandtiger sharks.

    Science.gov (United States)

    Ferrara, T L; Clausen, P; Huber, D R; McHenry, C R; Peddemors, V; Wroe, S

    2011-02-01

    Although a strong correlation between jaw mechanics and prey selection has been demonstrated in bony fishes (Osteichthyes), how jaw mechanics influence feeding performance in cartilaginous fishes (Chondrichthyes) remains unknown. Hence, tooth shape has been regarded as a primary predictor of feeding behavior in sharks. Here we apply Finite Element Analysis (FEA) to examine form and function in the jaws of two threatened shark species, the great white (Carcharodon carcharias) and the sandtiger (Carcharias taurus). These species possess characteristic tooth shapes believed to reflect dietary preferences. We show that the jaws of sandtigers and great whites are adapted for rapid closure and generation of maximum bite force, respectively, and that these functional differences are consistent with diet and dentition. Our results suggest that in both taxa, insertion of jaw adductor muscles on a central tendon functions to straighten and sustain muscle fibers to nearly orthogonal insertion angles as the mouth opens. We argue that this jaw muscle arrangement allows high bite forces to be maintained across a wider range of gape angles than observed in mammalian models. Finally, our data suggest that the jaws of sub-adult great whites are mechanically vulnerable when handling large prey. In addition to ontogenetic changes in dentition, further mineralization of the jaws may be required to effectively feed on marine mammals. Our study is the first comparative FEA of the jaws for any fish species. Results highlight the potential of FEA for testing previously intractable questions regarding feeding mechanisms in sharks and other vertebrates. PMID:21129747

  4. A new skeletal retention system for retaining anterior open bites

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    Bodore Albaker

    2013-01-01

    Full Text Available Objectives: Relapse of anterior open bite after treatment poses a challenge to orthodontists and warrants finding new methods. We aimed to compare the effect of a skeletal retention (SR system to the conventional retention (CR commonly used. Materials and Methods: Twenty patients participated in this study. SR group ten patients (five females and five males with mean age of 16.2 years, CR group ten patients (five females and five males with mean age of 17.1 years in pretreatment stage. The SR system is comprised of four self-drilling miniscrews and vacuum retainers with interarch elastics where the CR group is comprised of removable or fixed retainers. Pretreatment (T1, posttreatment (T2, and 1-year follow up (T3 lateral cephalograms were taken and analyzed to compare the stability of both retention modalities. Results: The overbite in the CR group showed more relapse in the form of significant reduction when compared to the SR group (P < 0.001. The overbite was reduced only by 0.1 mm (±0.3 in the SR group compared to 1.4 mm (±0.9 in the CR group. In the CR group, the upper incisors and first molar showed a more significant relapse compared to the SR group (P < 0.05. Conclusion: Skeletal retention using miniscrews and vertical elastic is an effective method for retention of anterior open bite cases.

  5. Zapora mrežničnih ven: Retinal vein occlusion:

    OpenAIRE

    Jaki, Polona; Mavri, Alenka; Štalc, Monika

    2011-01-01

    Retinal vein occlusion is a common disease, especially in the elderly, and is associated with significant visual morbidity, as a consequence of persistent macular oedema, macular ischemia, and in the advanced stages of the disease, due to retinal or iris neovascularisation with vitreal haemorrhages or neovascular glaucoma. There are two types of retinal vein occlusion with respect to the site of occlusion: branch retinal vein occlusion and central retinal vein occlusion. The obstruction is ma...

  6. Influence of balanced occlusion in complete dentures on the decrease in reduction of an edentulous ridge

    OpenAIRE

    Poštić Srđan D.

    2012-01-01

    Background/Aim. Balanced occlusal arrangement of artificial teeth and balanced occlusion is a specific type of occlusion that preserves the stability of complete dentures. Balanced occlusion comprises realization of tooth contacts at the working side as well as at the balancing side, at the same time. The aim of this study was to assess the influence of balanced occlusal arrangement of artificial teeth on the decrease in reduction of edentulous alveolar ridge. Methods. A longitudinal st...

  7. Latin American Consensus on Retinal Vein Occlusion

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    Francisco J. Rodriguez

    2016-01-01

    Full Text Available The introduction of anti-VEGF agents has allowed unprecedented progress in the management and treatment of ophthalmologic conditions characterized by an increased vascular permeability and intraocular neovascularization. One of these conditions is retinal vein occlusion (RVO.  RVO is one of the most common causes of reduced vision due to retinal vascular disease. Without timely treatment, macular edema, macular ischemia, neovascularization and other potential sequelae of RVO can lead to photoreceptor cell death and consequently to irreversible vision loss.   Treatments for this indication that have been recently approved by several regulatory agencies throughout the world include: the VEGF inhibitor ranibizumab (Lucentis, Genentech, the VEGF and placental growth factor inhibitor aflibercept (Eylea, Regeneron Pharmaceuticals and Bayer HealthCare, and a slow release intravitreal implant of dexamethasone (Ozurdex, Allergan. In addition bevacizumab (Avastin, Genentech has been used extensively in an off-label manner.   These new treatments allow us to preserve vision for many RVO patients who could not have expected such favorable results just 5 or 6 years ago. However, not every treatment is effective for every patient, and whether one option is superior to another or a combination of options is superior to monotherapy, have yet to be definitively determined.   A growing body of literature with strong evidence supports the use of these new treatments. However, in several instances the literature is not conclusive to support unified management of RVO. This document is a summary analysis on RVO assembled by a group of specialists summoned by the Pan-American Vitreo-Retinal Society (SPRV to participate in this Latin American consensus.

  8. Decision support system with semantic model to assess the risk of tail biting in pigs. 1. Modelling

    NARCIS (Netherlands)

    Bracke, M.B.M.; Hulsegge, B.; Blokhuis, H.J.; Keeling, L.

    2004-01-01

    Tail biting is a multifactorial problem with important welfare as well as economic consequences. Different stakeholders in the pig production chain, such as farmers, consumers and policy makers are interested in reducing the level of tail biting, because tail biting may affect productivity, profit a

  9. Decision support system with semantic model to assess the risk of tail biting in pigs. 2. 'Validation'

    NARCIS (Netherlands)

    Bracke, M.B.M.; Keeling, L.; Blokhuis, H.J.; Hulsegge, B.

    2004-01-01

    Tail biting is a multifactorial problem with important welfare as well as economic consequences. Different stakeholders in the pig production chain, such as farmers, consumers and policy makers are interested in the level of tail biting, because tail biting may affect productivity, profit and animal

  10. Animal Bite Management Practices: Study at Three Municipal Corporation Hospitals of Ahmedabad

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    Vyas Sheetal, Gupta Kinnari, Bhatt Gneyaa, Tiwari Hemant

    2010-12-01

    Full Text Available Context: Rabies is a deadly Zoonotic disease most often transmitted to humans through a dog bite. Most of these deaths could be prevented through post-exposure prophylaxis (PEP, including immediate wound washing, rabies immunoglobulin administration and vaccination. Aims: To study attitude and pre-treatment practices among the study population. Methods: Cross sectional study was carried out by conducting exit interview of 100 cases of animal bite each from three hospitals run by Ahmedabad Municipal Corporation. Observations: Total 300 cases of animal bites were studied in the present study. Most common biting animal was dog as 97.33% cases gave history of dog bite. Almost half of the cases belonged to age group less than 20 years with mean age of 19+ 20.2 years and male to female ratio was 3:1. Right lower limb was the most common (45.7% biting site and majority (59% had category III bites. Immediate pre-treatment of wound was practiced by 72% of cases before visiting hospitals however only 5.7% had gone for immediate washing of wound with soap and water. The local applications at the site of bite were tobacco snuff, red chilli, turmeric, and miscellaneous things like Garlic, Jaggery, Kerosene, Lime, Bandage, Soframycine, Ghee, Wheat flour etc. which were practiced by 66% of cases. The average time interval between bite and visiting the hospital was 32 hours. Conclusions: With the availability of safe and effective tissue culture vaccines prevention of rabies is virtually assured by immediate and appropriate post exposure treatment. There is need for creating awareness in public and medical community about proper wound management, judicious use of anti-rabies serum and use of modern tissue culture vaccine after animal bite.

  11. The Related Risk Factors Analysis of Snake-Bite Induced Acute Kidney Injury.

    Science.gov (United States)

    Li, Wei; Chen, Fang; Wu, Shukun

    2016-01-01

    BACKGROUND The pathogenic mechanism of snake-bite induced acute kidney injury (AKI) remains unclear. Analyzing the risk factors for snake-bite induced AKI may provide the guidance needed for AKI prevention and early treatment. MATERIAL AND METHODS This retrospective study included 119 snake-bite patients who were hospitalized at the emergency department of Sichuan Provincial People's Hospital from January 2011 to September 2013. The patients were divided into AKI and non-AKI groups according to the 2012 Kidney Disease: Improving Global Outcomes (KDIGO) guideline. Gender, age, and clinical examination data of the patients were recorded. The Mann-Whitney U test and Fisher exact test were performed to analyze the collected data; preliminary analysis of independent risk factors was performed with multivariate logistic regression. RESULTS Among the snake-bite patients, 98.3% were farmers. The mean age of patients was 46±12 years. Of the 119 patients (13.4%), 16 suffered from AKI. There were statistically significant differences between the AKI and non-AKI groups with respect to age, time interval from snake bite to antivenin therapy, creatine kinase, blood myoglobin, advanced age, regional lymphadenopathy, incision drainage, and hemoglobin. Preliminary analysis with multivariate logistic regression showed that advanced age and increased time interval from snake bite to antivenin therapy might be independent risk factors for snake-bite induced AKI. CONCLUSIONS Age, time interval from snake bite to antivenin therapy, creatine kinase, blood myoglobin, advanced age, regional lymphadenopathy, incision drainage, and hemoglobin were risk factors for snake-bite induced AKI. Advanced age and delayed antivenin therapy might be independent risk factors for snake-bite induced AKI. PMID:27377078

  12. Experience of dental caries and its effects on early dental occlusion: a descriptive study

    Science.gov (United States)

    Luzzi, Valeria; Fabbrizi, Miriam; Coloni, Camilla; Mastrantoni, Cristina; Mirra, Carla; Bossù, Maurizio; Vestri, Annarita; Polimeni, Antonella

    2011-01-01

    Summary Aim Describe the occurrence of dental caries in a sample of pre-school children and school children, aged 3 and 12, and study the possible association between caries and malocclusion. Methods We selected and analyzed the medical records of a sample of 588 patients who had their first dental examination at the Pediatric Dentistry Unit, Department of Oral and Maxillofacial Sciences of Policlinico Umberto I, “Sapienza” University of Rome. Results In the sample, 55.4% of the children had no decayed deciduous elements, while 44.6% had at least one decayed deciduous element. The prevalence of decayed permanent teeth was 10.2%, while 89.8% had no decayed permanent teeth. In the sample, 9.4% of the children showed advanced carious lesions, that needed tooth extraction and 6.6% needed a space maintainer for post-extractive interceptive treatment. In the sample, 26.7% of the examined patients had increased overjet, while 3.7% had decreased overjet and 25.4% of the sample had an increased overbite, 11, 2% had reduced over-bite values. A percentage over 10% of the sample had an anterior openbite in centric occlusion. The prevalence of posterior crossbite among entire samples was 19.8%. Conclusions Although the incidence of caries disease was high in the selected samples, the study did not show a statistically significant association between caries and clinical orthodontic abnormalities, except for the association between the midline deviation and the severe carious diseases, necessitating extraction. PMID:22238717

  13. Dental occlusion influences knee muscular performances in asymptomatic females.

    Science.gov (United States)

    Grosdent, Stéphanie; O'Thanh, Roseline; Domken, Olivier; Lamy, Marc; Croisier, Jean-Louis

    2014-02-01

    Some authors claim that occlusal appliances can enhance athletic performance. Therefore, this study investigated the influence of dental occlusion on knee muscle strength performance. Twelve healthy female subjects (mean age, 24.1 ± 3.1 years) without temporomandibular joint dysfunction participated in this study. Isokinetic quadriceps and hamstring strength were assessed in relation to 3 randomized jaw conditions: mouth closed in maximum intercuspidation without splint, mouth closed on a balanced splint which optimized contact over the dental arch, mouth closed on a piece of resin of 1 mm which created an imbalanced occlusion. Tests were performed at 60 and 240°·s in concentric and 30°·s in eccentric exertions. Concentric performances did not show any significant difference between the 3 jaw conditions (p > 0.05). In contrast, in the eccentric trials related to quadriceps performance, significant differences (p ≤ 0.05) were observed between the resin condition and the 2 other modalities (without splint or with a balanced splint). The imbalanced occlusion created by the resin component corresponded to an average decrease of 9% in eccentric peak torque. The eccentric hamstring peak torques also showed a significant difference (p ≤ 0.05) between measurements with splint and with resin (7% decrease when occlusion was imbalanced). In conclusion, among asymptomatic females, artificial imbalanced occlusion induces immediate and significant alteration of knee eccentric muscle performances. Therefore, occlusion examination should be undertaken on a regular and frequent basis for high-level athletes. Moreover, for athletes using mouthguards, muscular performance assessments should be planned with and without the dental protection.

  14. An Epidemiological Study of Animal Bites and Envenomings in a Rural District of Tamilnadu, India

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    Venkatesan M

    2014-12-01

    Full Text Available Aim: To find out the period prevalence of animal bites and envenomings, its epidemiological risk factors and treatment seeking behaviour. Materials and methods: The present cross sectional study was conducted in the 34 villages of the field practising areas of the Rural Health Training Centre, Thiruvenainallur. Considering the prevalence of bites as 7.4%, and taking 5 members in each household with a non response of 10% the number households studied were 4150 covering a population of 18865 which was calculated using an Open EPI version (2.3 software package. Sampling frame of households was prepared and systemic random sampling method was used to select households from each village. Trained medical interns and social workers collected information on bites in the preceding one year. Data was entered and analyzed in Epi_info (3.4.3 software. Results: In this study, information of 12947 adults was included and the overall period prevalence of bites was 81.8/1000 population. The most common bite is dog bite (22.3 followed by scorpion (22.1 and centipede (17.8 per 1000 population. The dog bites are significantly higher among males, people below the poverty line, farmers and laborers. There is significantly increased risk of snake bites among people working in agriculture fields. Only 35% of the dog bite victims washed their wound with soap and water and 28% applied irritants such as ash, ink, calotropis milk etc. over the wounds. Anti-rabies vaccination was given in 60% of the dog bite victims and life saving measure of Rabies Immunoglobulins (RIGS was given in only in 6.2%. Almost half of the bitten victims of scorpion and centipede follow traditional methods of treatment. Conclusions: Considering the high prevalence of different bites and treatment seeking behavior indicates there is a lack of awareness regarding all forms of bites in the rural community. The existing program of rabies control has to be strengthened and community awareness about

  15. Mechanism of vaso-occlusion in sickle cell anemia

    Science.gov (United States)

    Lei, Huan; Karniadakis, George

    2012-11-01

    Vaso-occlusion crisis is one of the key hallmark of sickle cell anemia. While early studies suggested that the crisis is caused by blockage of a single elongated cell, recent experimental investigations indicate that vaso-occlusion is a complex process triggered by adhesive interactions among different cell groups in multiple stages. Based on dissipative particle dynamics, a multi-scale model for the sickle red blood cells (SS-RBCs), accounting for diversity in both shapes and cell rigidities, is developed to investigate the mechanism of vaso-occlusion crisis. Using this model, the adhesive dynamics of single SS-RBC was investigated in arterioles. Simulation results indicate that the different cell groups (deformable SS2 RBCs, rigid SS4 RBCs, leukocytes, etc.) exhibit heterogeneous adhesive behavior due to the different cell morphologies and membrane rigidities. We further simulate the tube flow of SS-RBC suspensions with different cell fractions. The more adhesive SS2 cells interact with the vascular endothelium and further trap rigid SS4 cells, resulting in vaso-occlusion in vessels less than 15 μm . Under inflammation, adherent leukocytes may also trap SS4 cells, resulting in vaso-occlusion in even larger vessels. This work was supported by the NSF grant CBET-0852948 and the NIH grant R01HL094270.

  16. Occlusal Grinding Pattern during Sleep Bruxism and Temporomandibular Disorder

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    Yeni Wijaya

    2013-09-01

    Full Text Available Sleep Bruxism is a significant etiology of temporomandibular disorder (TMD and causes many dental or oral problems such as tooth wear or facet. There is no study analyzing the relationship between sleep bruxism and TMD. Objective: To investigate any relationship between occlusal grinding pattern during sleep bruxism and temporomandibular disorder. Methods: A cross-sectional study involving 30 sleep bruxism patients attended the Faculty Dentistry Universitas Indonesia Teaching Hospital (RSGMP FKG UI. Completion of 2 forms of ID-TMD index and questionnaire from American Academy of Sleep Medicine were done. BruxChecker was fabricated and used for two nights to record the occlusal grinding pattern. The occlusal grinding pattern was categorized into laterotrusive grinding (LG and mediotrusive side. Further divisons of LG were: incisor-canine (IC, incisor-caninepremolar (ICP and incisor-canine-premolar-molar (ICPM. Mediotrusive side was classified as mediotrusive contact (MC and mediotrusive grinding (MG. Results: It was found that occlusal grinding pattern in non-TMD subjects were IC+MC, in subjects with mild TMD were ICP+MG and in subjects with moderate TMD were ICP+MG and ICPM+MG. TMJ was more significantly affected by ICP and ICPM grinding pattern than that of IC. Conclusion: There was a significant relationship between occlusal grinding pattern during sleep bruxism and TMD.DOI: 10.14693/jdi.v20i2.149

  17. To bite or not to bite! A questionnaire-based survey assessing why some people are bitten more than others by midges

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    Weeks Emma NI

    2010-05-01

    Full Text Available Abstract Background The Scottish biting midge, Culicoides impunctatus, responsible for more than 90% of biting attacks on human beings in Scotland, is known to demonstrate a preference for certain human hosts over others. Methods In this study we used a questionnaire-based survey to assess the association between people's perception of how badly they get bitten by midges and their demographic, lifestyle and health related characteristics. Results Most people (85.8% reported being bitten sometimes, often or always with only 14.2% reporting never being bitten by midges when in Scotland. There was no association between level of bites received and age, smoking, diet, exercise, medication, eating strongly flavoured foods or alcohol consumption. However, there was a strong association between the probability of being bitten and increasing height (in men and BMI (in women. A large proportion of participants (33.8% reported experiencing a bad/severe reaction to midge bites while 53.1% reported a minor reaction and 13.1% no reaction at all. Also, women tend to react more than men to midge bites. Additionally, the results indicated that the susceptibility to being bitten by midges is hereditary. Conclusions This study suggests that midges prefer to bite men that are tall and women that have a large BMI, and that the tendency for a child to be bitten or not could be inherited from their parent. The study is questionnaire-based; therefore, the interpretation of the results may be limited by the subjectivity of the answers given by the respondents. Although the results are relevant only to the Scottish biting midge, the approach used here could be useful for investigating human-insect interactions for other insects, particularly those which transmit pathogens that cause disease.

  18. Comparison of the bite mark pattern and intercanine distance between humans and dogs

    Directory of Open Access Journals (Sweden)

    Bina Kashyap

    2015-01-01

    Full Text Available Background: Bite marks show uniqueness due to specific characteristics and arrangement of teeth, but when it comes to bite mark analysis, it is complicated by numerous factors such as animal bite, abuse etc., Humans and pet animals (dog bite marks analysis is by far the most demanding and complicated part of forensic dentistry. Aim: To analyze and compare bite marks of humans and the pet animals (dog using indirect method, so as to assess its usefulness and application in forensic odontology. Materials and Methods: 40 samples including 20 humans (10 males and 10 females and 20 dogs of different breed were included in the study. Bite registration of all the samples were obtained on modeling wax and intercanine distance were measured. Data were analyzed and results were tabulated. Results: Arch size and intercanine distance showed variable differences among humans and on average dogs showed more intercanine distance and arch size. Among dog breeds larger dogs showed larger variables when compared to smaller dogs. Conclusion: Assessment of bite marks evidences made by animals needs further investigation so that it can be a tool to assist the justice system to answer crucial questions.

  19. Cave canem: bite mark analysis in a fatal dog pack attack.

    Science.gov (United States)

    Pomara, Cristoforo; D'Errico, Stefano; Jarussi, Valerio; Turillazzi, Emanuela; Fineschi, Vittorio

    2011-03-01

    Deaths resulting from animal attacks are rare, and according to The Humane Society of the United States, more than 300 individuals died of dog attacks in the United States from 1979 to 1996. The case of a fatal dog-pack attack on an 83-year-old woman is presented. Wide lacerations of the scalp, several tooth puncture wounds, and bruises reproducing bite marks were recorded on the whole body. Exsanguinations due to brachial artery laceration subsequent to multiple dog bites were indicated as the main cause of death. An integrated study in association with a veterinary doctor was performed on 27 dogs of different breed (24 Cane Corso, 1 Dalmatian, 2 German Shepherds) collecting dental formula and dental casts. Dental casts were superimposed on the victim's wound samples collected at autopsy and analyzed for compatibility-the patterns taken from the jaws of 3 suspected dogs could be clearly adapted on the bite marks. At the end of investigation, the son of the victim indicated the 3 dogs of his own as the responsible ones and he was condemned for manslaughter. Bite marks analysis provided conclusive evidences in identifying the offending animals. The results may be important to give details about bite circumstances and predisposition of specific breeds of dogs to bite or inflict severe bites. PMID:20661123

  20. Verified spider bites in Oregon (USA) with the intent to assess hobo spider venom toxicity.

    Science.gov (United States)

    McKeown, Nathanael; Vetter, Richard S; Hendrickson, Robert G

    2014-06-01

    This study compiled 33 verified spider bites from the state of Oregon (USA). The initial goal was to amass a series of bites by the hobo spider to assess whether it possesses toxic venom, a supposition which is currently in a contested state. None of the 33 bites from several spider species developed significant medical symptoms nor did dermonecrosis occur. The most common biters were the yellow sac spider, Cheiracanthium mildei (N = 10) and orb-weavers of the genus Araneus (N = 6). There were 10 bites from three genera of funnel web spiders of the family Agelenidae including one hobo spider bite and one from the congeneric giant house spider which is readily confused as a hobo spider. The hobo spider bite resulted in pain, redness, twitching in the calf muscle and resolved in 12 h. Also generated from this study were possibly the first records of bites from spiders of the genera Callobius (Amaurobiidae) and Antrodiaetus (Antrodiaetidae), both with minor manifestations.

  1. Comparative analysis of methods for determining bite force in the spiny dogfish Squalus acanthias.

    Science.gov (United States)

    Huber, Daniel Robert; Motta, Philip Jay

    2004-01-01

    Many studies have identified relationships between the forces generated by the cranial musculature during feeding and cranial design. Particularly important to understanding the diversity of cranial form amongst vertebrates is knowledge of the generated magnitudes of bite force because of its use as a measure of ecological performance. In order to determine an accurate morphological proxy for bite force in elasmobranchs, theoretical force generation by the quadratomandibularis muscle of the spiny dogfish Squalus acanthias was modeled using a variety of morphological techniques, and lever-ratio analyses were used to determine resultant bite forces. These measures were compared to in vivo bite force measurements obtained with a pressure transducer during tetanic stimulation experiments of the quadratomandibularis. Although no differences were found between the theoretical and in vivo bite forces measured, modeling analyses indicate that the quadratomandibularis muscle should be divided into its constituent divisions and digital images of the cross-sections of these divisions should be used to estimate cross-sectional area when calculating theoretical force production. From all analyses the maximum bite force measured was 19.57 N. This relatively low magnitude of bite force is discussed with respect to the ecomorphology of the feeding mechanism of S. acanthias to demonstrate the interdependence of morphology, ecology, and behavior in organismal design. PMID:14695686

  2. Cardiovascular collapse after myocardial infarction due to centipede bite.

    Science.gov (United States)

    Üreyen, Çağin Mustafa; Arslan, Şakir; Baş, Cem Yunus

    2015-07-01

    Centipede bites have been reported to cause localized and/or systemic symptoms including local pain, erythema and edema, nausea and vomiting, palpitations, headache, lymphadenopathy, and rhabdomyolysis. However, acute myocardial infarction due to centipede envenomation is reported in only three cases in English medical literature.We present a case of 31-year-old male bitten by a golden colored centipede leading to myocardial infarction and cardiopulmonary arrest which is seen very rarely. The patient was admitted to emergency department with a swollen and painful right foot. However, typical chest pain became the major complaint and cardiopulmonary arrest developed while electrocardiography was being obtained. The patient was resuscitated successfully for 5 min and acute infero-posterolateral myocardial infarction was detected on electrocardiography. PMID:25994876

  3. Partial salvage of avulsed tissue after dog bite.

    Science.gov (United States)

    Øregaard, J S; Lang, C L; Venzo, A

    2016-02-01

    Injuries to the nose can be severe from both a functional and cosmetic perspective. After suffering a dog bite to the central part of the face, an 18-year old woman underwent replantation of the avulsed tissue with the help of microsurgical arterial anastomosis. A venous anastomosis was impossible and venous congestion was treated with leech therapy. Subsequent skin necrosis occurred after a few days and the replantation was revised, revealing healthy tissue immediately below. The defect was covered with a full-thickness skin graft. At follow-up review eight months later, the functional and cosmetic result was satisfactory. To our knowledge, this is one of few cases where an injury of this severity healed with a cosmetically acceptable result. PMID:26673050

  4. Dog bites in humans and estimating human rabies mortality in rabies endemic areas of Bhutan.

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    Tenzin

    2011-11-01

    Full Text Available BACKGROUND: Dog bites in humans are a public health problem worldwide. The issues of increasing stray dog populations, rabies outbreaks, and the risk of dogs biting humans have been frequently reported by the media in Bhutan. This study aimed to estimate the bite incidence and identify the risk factors for dog bites in humans, and to estimate human deaths from rabies in rabies endemic south Bhutan. METHODS: A hospital-based questionnaire survey was conducted during 2009-2010 among dog bites victims who visited three hospitals in Bhutan for anti-rabies vaccine injection. Decision tree modeling was used to estimate human deaths from rabies following dog bite injuries in two rabies endemic areas of south Bhutan. RESULTS: Three hundred and twenty four dog bite victims were interviewed. The annual incidence of dog bites differed between the hospital catchment areas: 869.8 (95% CI: 722.8-1022.5, 293.8 (240-358.2 and 284.8 (251.2-323 per 100,000 people in Gelephu, Phuentsholing and Thimphu, respectively. Males (62% were more at risk than females (P<0.001. Children aged 5-9 years were bitten more than other age groups. The majority of victims (71% were bitten by stray dogs. No direct fatal injury was reported. In two hospital areas (Gelephu and Phuentsholing in south Bhutan the annual incidence of death from rabies was 3.14 (95% CI: 1.57-6.29 per 100,000 population. The decision tree model predicted an equivalent annual incidence of 4.67 (95% CI: 2.53-7.53 deaths/100,000 population at risk. In the absence of post exposure prophylaxis, the model predicted 19.24 (95% CI: 13.69-25.14 deaths/year in these two areas. CONCLUSIONS: Increased educational awareness of people about the risk of dog bites and rabies is necessary, particularly for children in rabies endemic areas of Bhutan.

  5. Microbial analysis of bite marks by sequence comparison of streptococcal DNA.

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    Darnell M Kennedy

    Full Text Available Bite mark injuries often feature in violent crimes. Conventional morphometric methods for the forensic analysis of bite marks involve elements of subjective interpretation that threaten the credibility of this field. Human DNA recovered from bite marks has the highest evidentiary value, however recovery can be compromised by salivary components. This study assessed the feasibility of matching bacterial DNA sequences amplified from experimental bite marks to those obtained from the teeth responsible, with the aim of evaluating the capability of three genomic regions of streptococcal DNA to discriminate between participant samples. Bite mark and teeth swabs were collected from 16 participants. Bacterial DNA was extracted to provide the template for PCR primers specific for streptococcal 16S ribosomal RNA (16S rRNA gene, 16S-23S intergenic spacer (ITS and RNA polymerase beta subunit (rpoB. High throughput sequencing (GS FLX 454, followed by stringent quality filtering, generated reads from bite marks for comparison to those generated from teeth samples. For all three regions, the greatest overlaps of identical reads were between bite mark samples and the corresponding teeth samples. The average proportions of reads identical between bite mark and corresponding teeth samples were 0.31, 0.41 and 0.31, and for non-corresponding samples were 0.11, 0.20 and 0.016, for 16S rRNA, ITS and rpoB, respectively. The probabilities of correctly distinguishing matching and non-matching teeth samples were 0.92 for ITS, 0.99 for 16S rRNA and 1.0 for rpoB. These findings strongly support the tenet that bacterial DNA amplified from bite marks and teeth can provide corroborating information in the identification of assailants.

  6. Impact of snake bites and determinants of fatal outcomes in southeastern Nepal.

    Science.gov (United States)

    Sharma, Sanjib K; Chappuis, François; Jha, Nilhambar; Bovier, Patrick A; Loutan, Louis; Koirala, Shekhar

    2004-08-01

    Current available data on snake bites in Nepal are based solely on hospital statistics. This community-based study aimed at evaluating the impact of snake bites and determining the risk factors associated with a fatal outcome in southeastern Nepal. A total of 1,817 households, selected by a random proportionate sampling method, were visited by trained field workers in five villages. Extensive data from snake bite victims during the 14 previous months were recorded and analyzed. One hundred forty-three snake bites including 75 bites with signs of envenoming were reported (annual incidence = 1,162/100,000 and 604/100,000, respectively), resulting in 20 deaths (annual mortality rate = 162/100,000). Characteristics of krait bites such as bites occurring inside the house, while resting, and between midnight and 6:00 am were all factors associated with an increased risk of death, as were an initial consultation with a traditional healer, a long delay before transport, and a lack of available transport. An initial transfer to a specialized treatment center and transport by motorcycle were strong protective factors. Among the 123 survivors, wounds required dressing and surgery in 30 (24%) and 10 (8%) victims, respectively, the mean working incapacity period was 15 days, and the mean out-of-pocket expense was 69 U.S. dollars. Snake bite is a major but neglected public health problem in southeastern Nepal. Public health interventions should focus on improving victims' rapid access to anti-snake venom serum by promoting immediate and fast transport to adequate treatment centers, particularly for bites occurring at night. PMID:15306717

  7. Ambient Occlusion Effects for Combined Volumes and Tubular Geometry

    KAUST Repository

    Schott, M.

    2013-06-01

    This paper details a method for interactive direct volume rendering that computes ambient occlusion effects for visualizations that combine both volumetric and geometric primitives, specifically tube-shaped geometric objects representing streamlines, magnetic field lines or DTI fiber tracts. The algorithm extends the recently presented the directional occlusion shading model to allow the rendering of those geometric shapes in combination with a context providing 3D volume, considering mutual occlusion between structures represented by a volume or geometry. Stream tube geometries are computed using an effective spline-based interpolation and approximation scheme that avoids self-intersection and maintains coherent orientation of the stream tube segments to avoid surface deforming twists. Furthermore, strategies to reduce the geometric and specular aliasing of the stream tubes are discussed.

  8. New methodology for studying the structural ecology of occlusal caries

    DEFF Research Database (Denmark)

    Dige, Irene; Grønkjær, Lene; Nyvad, Bente

    Microbiological studies of occlusal dental biofilms have hitherto been hampered by inaccessibility to the sampling site and demolition of the original biofilm architecture. The aim of the present study was to explore the spatial distribution of bacterial taxa in vivo at various stages of occusal...... caries, applying a new methodology involving preparation of embedded hard dental tissue slices for fluorescence in situ hybridization (FISH) and confocal microscopy. 11 extracted teeth were included in the study and classified according to their occlusal caries status (active/inactive/sound; cavitated...... to histological features of lesion penetration. The sites showed distinct differences in the bacterial composition and fluorescence intensity between different ecological niches in occlusal caries. Biofilm observed along the entrance of fissures showed an inner layer of microorganisms organized in palisades often...

  9. Hierarchical Template Matching for Robust Visual Tracking with Severe Occlusions

    Institute of Scientific and Technical Information of China (English)

    Lizuo Jin; Tirui Wu; Feng Liu; Gang Zeng

    2012-01-01

    To tackle the problem of severe occlusions in visual tracking, we propose a hierarchical template-matching method based on a layered appearance model. This model integrates holistic- and part-region matching in order to locate an object in a coarse-to-fine manner. Furthermore, in order to reduce ambiguity in object localization, only the discriminative parts of an object' s appearance template are chosen for similarity computing with respect to their cornerness measurements. The similarity between parts is computed in a layer-wise manner, and from this, occlusions can be evaluated. When the object is partly occluded, it can be located accurately by matching candidate regions with the appearance template. When it is completely occluded, its location can be predicted from its historical motion information using a Kalman filter. The proposed tracker is tested on several practical image sequences, and the experimental results show that it can consistently provide accurate object location for stable tracking, even for severe occlusions.

  10. Corticotomy and compression osteogenesis in the posterior maxilla for treating severe anterior open bite.

    Science.gov (United States)

    Kanno, T; Mitsugi, M; Furuki, Y; Kozato, S; Ayasaka, N; Mori, H

    2007-04-01

    A new technique is described for outpatient treatment of anterior open bite. The compression osteogenesis method with a two-stage corticotomy was used in the posterior maxilla to treat a woman with severe anterior open bite. Three-week post-surgical compression using anchor plates and elastics repositioned the posterior maxillary bone/teeth segments by 7 mm to the ideal superior position. The patient had a stable skeletal position of the maxilla at 14-month follow-up with satisfactory results and no complications after orthodontic treatment. This technique appears to be an efficient option for treating patients with anterior open bite. PMID:17110086

  11. TOXICOLOGY AND TREATMENT: MEDICAL AUTHORITIES AND SNAKE-BITE IN THE MIDDLE AGES

    OpenAIRE

    WALKER-MEIKLE, KATHLEEN

    2014-01-01

    By end of the thirteenth century, surgeons and university-trained physicians in Western Europe had a plethora of authorities from the Greco-Roman and Arabic tradition from which to consult for the treatment of snake-bites. Venomous animals receive the largest share of attention in the literature on biting animals. Nearly all of the sources focus on the idea of the animal biting or puncturing the skin’s surface with their mouths and few poisonous animals where the venom is passed on through th...

  12. Differential Reinforcement of Other Behaviour for the Reduction of Severe Nail Biting.

    Science.gov (United States)

    Heffernan, Louise; Lyons, Danielle

    2016-09-01

    The effects of differential reinforcement of other behaviour (DRO) were investigated for the treatment of severe self-injurious nail biting in an individual diagnosed with autism. A functional behaviour assessment (FBA) identified that the behaviour was maintained by automatic reinforcement. Following the implementation of the DRO procedure and access to reinforcing stimuli that were believed to provide similar sensory feedback to that of the self-injurious nail biting, the results indicate that the nail biting was successfully reduced and maintained at near zero levels. PMID:27622130

  13. The effects of naris occlusion on mouse nasal turbinate development.

    Science.gov (United States)

    Coppola, David M; Craven, Brent A; Seeger, Johannes; Weiler, Elke

    2014-06-15

    Unilateral naris occlusion, a standard method for causing odor deprivation, also alters airflow on both sides of the nasal cavity. We reasoned that manipulating airflow by occlusion could affect nasal turbinate development given the ubiquitous role of environmental stimuli in ontogenesis. To test this hypothesis, newborn mice received unilateral occlusion or sham surgery and were allowed to reach adulthood. Morphological measurements were then made of paraffin sections of the whole nasal cavity. Occlusion significantly affected the size, shape and position of turbinates. In particular, the nasoturbinate, the focus of our quantitative analysis, had a more delicate appearance on the occluded side relative to the open side. Occlusion also caused an increase in the width of the dorsal meatus within the non-occluded and occluded nasal fossae, compared with controls, and the position of most turbinates was altered. These results suggest that a mechanical stimulus from respiratory airflow is necessary for the normal morphological development of turbinates. To explore this idea, we estimated the mechanical forces on turbinates caused by airflow during normal respiration that would be absent as a result of occlusion. Magnetic resonance imaging scans were used to construct a three-dimensional model of the mouse nasal cavity that provided the input for a computational fluid dynamics simulation of nasal airflow. The simulation revealed maximum shear stress values for the walls of turbinates in the 1 Pa range, a magnitude that causes remodeling in other biological tissues. These observations raise the intriguing possibility that nasal turbinates develop partly under the control of respiratory mechanical forces.

  14. Using data from electronic feeders on visit frequency and feed consumption to indicate tail biting outbreaks in commercial pig production.

    Science.gov (United States)

    Wallenbeck, A; Keeling, L J

    2013-06-01

    The long term aim with this study was to identify predictors or early indicators of tail biting outbreaks using registrations from electronic feeders. This study is based on information about daily frequency of feeder visits (DFV) and daily feed consumption (DFC) recorded in electronic feeders from 460 noncastrated boars in tail biting pens (TB pens, n = 21) and matched control pens (Con pens, n = 21) from 10 wk before to 10 wk after the first injured tail in the pen. The results showed lower average DFV among pigs in TB pens compared with pigs in Con pens 6 to 9 wk before the start of the tail biting outbreak (first treatment for tail damage due to tail biting; P ≤ 0.1, df = 487) but a greater DFV for tail biting victims 2 to 5 wk before the start of the tail biting outbreak compared both to other pigs in the TB pen and to pigs in the Con pen (P Tail biting victims had decreased DFC during and after the tail biting outbreak [wk 0 to 2 after the tail biting outbreak (P tail biting outbreaks in pigs. Due to common casual factors, low feeding frequencies observed on the group level can predict future tail biting in the pen as early as 9 wk before the first tail injuries. Moreover, increased feeding frequencies for individual pigs in potential tail biting pens may predict which pigs will be become the victims in the tail biting outbreak. The results further support previous findings that pigs with tail injuries due to tail biting consume decreased amounts of feed. PMID:23478818

  15. Mechanisms of Biliary Plastic Stent Occlusion and Efforts at Prevention.

    Science.gov (United States)

    Kwon, Chang-Il; Lehman, Glen A

    2016-03-01

    Biliary stenting via endoscopic retrograde cholangiopancreatography has greatly improved the quality of patient care over the last 30 years. Plastic stent occlusion limits the life span of such stents. Attempts to improve plastic stent patency duration have mostly failed. Metal stents (self-expandable metal stents [SEMSs]) have therefore replaced plastic stents, especially for malignant biliary strictures. SEMS are at least 10 times more expensive than plastic stents. In this focused review, we will discuss basic mechanisms of plastic stent occlusion, along with a systematic summary of previous efforts and related studies to improve stent patency and potential new techniques to overcome existing limitations. PMID:27000422

  16. Endovascular Sharp Recanalization for Calcified Femoropopliteal Artery Occlusion

    Directory of Open Access Journals (Sweden)

    Hsuan-Li Huang

    2012-01-01

    Full Text Available Endovascular intervention of peripheral chronic total occlusion (CTO is technically challenging and time consuming. Various techniques and devices are used to facilitate lesion crossing and improve the success rate of the procedure. However, these new devices are quite expensive and not readily available. We report 2 cases of peripheral CTO wherein the occlusions were successfully crossed by using stiff end of Terumo glidewire. This sharp recanalization may be a useful technique for the recanalization of calcified peripheral CTOs when conventional techniques fail and new devices are not readily available, but it is accompanied by the risk of distal atheroembolism.

  17. Scintigraphic patterns of veno-occlusive disease in liver transplantation.

    Science.gov (United States)

    Bernstine, Hanna; Mor, Eytan; Ben Ari, Ziv; Belinki, Alexander; Hardoff, Ruth

    2004-05-01

    Venous vascular complications in liver transplant recipients are rare. Diagnosis is usually based on clinical criteria and typical findings on liver biopsy. The scintigraphic patterns of posttransplant liver veno-occlusive disease are described, and the value of follow-up studies is suggested. The authors present 2 patients who developed posttransplantation hepatic veno-occlusive disease. The first patient had a severe form of the disease and a fatal outcome. The second patient had a mild to moderate form of this disorder with complete resolution following treatment. PMID:15069326

  18. Endodontic therapy as a method in sanation of disturbed occlusion polytraumatized upper and lower jaw of a cat

    Directory of Open Access Journals (Sweden)

    Prokić Branislav

    2014-01-01

    Full Text Available Concomitant injuries of bone and soft tissues of the upper and lower jaws are classified as multiple trauma symptoms associated with early complications, such as shock, disordered breathing, bleeding, pain, deformity and facial asymmetry, abnormal jaw movement, crepitation, palsy-paralysis of traumatized soft tissue regions and languages. The goal of this work is to present polytraumatised rehabilitation of upper and lower jaws by the system of endodontic treatment of upper canines in cats. Primary approach to stabilization polytraumatised cats is highlighted, also as procedures to be undertaken in animal in shock, injury of the maxilla and mandible, and the order of diagnostic procedures. Mandibular prognation and incorrect occlusion with consequent demage of mandibular gingiva with maxilla kaninus are complications wich were resolved in our case with endodontic treatment of upper canines of the cat. This paper presents a detailed approach to the reduction of dental caninus maxilla and establishing proper bite in the molar region of the maxila and mandible. [Projekat Ministarstva nauke Republike Srbije, br. III 45006

  19. Case report: Management of severe posterior open bite due to primary failure of eruption.

    LENUS (Irish Health Repository)

    Mc Cafferty, J

    2010-06-01

    Primary failure of tooth eruption (PFE) is a rare condition affecting any or all posterior quadrants. Unilateral involvement of maxillary and mandibular quadrants causes a dramatic posterior open bite that requires complex management strategies.

  20. Awareness of rabies and response to dog bites in a Bangladesh community

    DEFF Research Database (Denmark)

    Ghosh, Sumon; Chowdhury, Sukanta; Haider, Najmul;

    2016-01-01

    Community awareness regarding rabies and treatment seeking behaviours are critical both for the prevention and control of the disease in human and animals. We conducted a study to explore people's awareness about rabies, their attitudes towards dogs and practices associated with treating dog bites...... or feeding a community dog (OR: 2.1, 95% CI: 1.4–2.9) showed an increased risk of getting a dog bite. Among the bite victims, 3.6% (n = 6) humans and 15.8% (n = 60) animals died. As a measure for dog population management (DPM), 56% preferred sterilization while the rest preferred killing of dogs...... in Satkhira Sadar, a south-western sub-district of Bangladesh. Of the total 3200 households (HHs) surveyed, the majority of the respondents have heard about rabies (73%) and there was a high level of awareness that dog bite is the main cause of rabies (86%), and that rabies can be prevented by vaccination (85...

  1. A retrospective study of snake bite envenomation in a tertiary care teaching hospital in Southern India

    Directory of Open Access Journals (Sweden)

    Arul Murugan

    2015-09-01

    Results: A Total of 82 cases were studied in our hospital. Out of these 82 Poisonous bites, 42 (51.22% cases were viper bites, 20 (24.39% cases were unidentified poisonous bites, 16 (19.51% cases were Krait, and 4 (4.88% cases were Cobra. Coagulopathy, cellulitis, wound infection, renal failure and respiratory paralysis were the common complications. Average dose of ASV administered range from 8.57 (+/- 0.98 to 20.78 (+/- 4.18 Vials. An increase in mortality, ASV dose and complications were directly proportional to the Bite to ASV Administration time. Conclusions: Delay in hospitalization is associated with poor prognosis and increased mortality rate due to complications. There is an emergent need of awareness among the community for avoidance of traditional form of treatment and delay in early medical interventions. [Int J Res Med Sci 2015; 3(9.000: 2419-2424

  2. Clinical Aspects and Emergent Management of Snake Bites Presented to Emergency Department

    Directory of Open Access Journals (Sweden)

    Bedriye Sonmez

    2014-03-01

    Full Text Available Aim: Evaluating the epidemiologic characteristics and management of snake bites presenting to emergency departments. Material and Method: In this retrospective study 74 cases of snakebites admitted to Emergency Department of Diyarbakir Training and Research Hospital between 2008 and 2009 were retrospectively evaluated. Results: Fourty-six (62.2% of patients were male and 28 (37.8% were female. Mean age of the study population was 34.85±19.17 (min 7- max 80 years. Most of the snakebites occurred between 18.00 to 06.00 hours and at home (73%. 79.7% of snake bites occurred to upper extremities. %93 of cases had intravenous administration of antivenin (one dose. Neither none of the patients needed recurrent administration. Discussion: Snake bites are still a major public health problem especially in rural areas. Particularly emergency care physicians should be adequately capable and sophisticated in multidisciplinary management of snake bites.

  3. Guidelines for bite mark analysis. American Board of Forensic Odontology, Inc.

    Science.gov (United States)

    1986-03-01

    Bite mark evidence is used in many courts and in the military justice system. Such evidence may be crucial to the resolution of the investigation. Detailed guidelines offer specific methods of collecting evidence.

  4. Imaging spectrum of bites, stings, and their complications: self-assessment module.

    Science.gov (United States)

    Roberts, Catherine C; Young, Phillip M; Bancroft, Laura W; Liu, Patrick T; Peterson, Jeffrey J

    2009-09-01

    The educational objectives for this self-assessment module are for the participant to exercise, self-assess, and improve his or her understanding of the imaging spectrum of bites, stings, and their complications.

  5. Block the Buzzing, Bites, and Bumps: Preventing Mosquito-Borne Illnesses

    Science.gov (United States)

    ... Subscribe Block the Buzzing, Bites, and Bumps Preventing Mosquito-Borne Illnesses Summer can be a bummer if ... find better ways to diagnose, treat, and prevent mosquito-borne illnesses. And we can all take simple ...

  6. Papular dermatitis induced in guinea pigs by the biting midge Culicoides sonorensis (Diptera: Ceratopogonidae)

    Science.gov (United States)

    Histological, ultrastructural, and virological examinations were performed on abdominal skin from guinea pigs after a blood meal by colony-bred biting midges, Culicoides sonorensis. Small, superficial, cutaneous, crateriform ulcers with necrosis of superficial dermis developed at feeding sites and ...

  7. [Snake bite by Philodryas chamissonis. A case presentation and literature review].

    Science.gov (United States)

    Neira O, Patricia; Jofré M, Leonor; Oschilewski L, David; Subercaseaux S, Benjamín; Muñoz S, Nelson

    2007-06-01

    There are two species of snakes associated with snake bite poisoning in Chile: Philodryas chamissonis and Tachymenis peruviana. A case associated with a P. chamissonis bite occurring during a summer activity in San Antonio, V Region, is presented. The bite compromised the dorsum of the right hand between the thumb and the index finger and was initially painless. During the following 24 hours equimotic edema developed up to the shoulder and pectoral region, with intense pain, headache, nausea, fever and appearance of a serohematic bulla on the elbow fold. The patient was treated with antihistamines, systemic steroids, analgesia and antibiotics for 7 days. Other cases of snake bites published in Chile are reviewed and treatment and prevention strategies are proposed. PMID:17554446

  8. Relationships between tail biting in pigs and disease lesions and condemnations at slaughter.

    Science.gov (United States)

    Kritas, S K; Morrison, R B

    2007-02-01

    Two matched case-control studies were performed at an abattoir with a capacity of 780 pigs per hour, each study using the approximately 7000 pigs slaughtered on one day. In the first study, the severity of tail biting and pneumonia were recorded in pigs with bitten or intact tails. In the second study, the tail score, sex, and the presence of pleuritis, externally visible abscesses and trimming were recorded in pigs with bitten or intact tails. In study 1, there was no significant association between the tail score and the percentage of lung tissue affected by lesions typical of enzootic pneumonia, but there was a significant association between the severity of tail biting and the prevalence of lungs with abscesses and/or pleuritic lesions (Ptail biting, and the prevalence of external carcase abscesses and carcase trimming; the carcases of castrated males had evidence of tail biting more frequently than the carcases of females (P<0.05). PMID:17277296

  9. Stroke intracerebral multiple infarcts: Rare neurological presentation of honey bee bite

    Directory of Open Access Journals (Sweden)

    Jyoti Jain

    2012-01-01

    Full Text Available Honey-bee bites which require urgent hospitalization is very rare. It is mainly seen as occupational hazards in farmers, tree dwellers and honey collectors. Common clinical presentation includes minor localized reactions in form of swelling and redness sometimes anaphylactic reaction. Infrequent major complications reported from different studies include rhabdomyolysis, acute renal failure (ARF, acute pulmonary edema, intravascular coagulation, encephalopathy and very rarely cerebral haemorrhage. Stroke due to multiple intra- cerebral infarcts along with rhabdomyolysis in patient of honey-bee bite is rare neurological complication. We report a case of 70 year man with honey-bee bite and multiple intracerebral infarcts presented as stroke, and rhabdomyolysis and ARF. When a patient presented with honey-bee bite, one should suspect serious complications. Despite advances in the understanding of pathophysiology its complications remains enigmatic and in some instances may be multifactorial. Various therapeutic interventions if started early after diagnosis reduces the possible consequences as potential reversibility of the illness.

  10. The epidemiology of bite and scratch injuries by vertebrate animals in Switzerland

    International Nuclear Information System (INIS)

    Pet and wildlife populations are a potential source of various public health problems, and injuries and complications due to animal bites and scratches are the most obvious. As no population based data on the frequency of animal bites were available at a national level in Switzerland, a study was conducted by the Swiss Sentinel Surveillance Network. The objectives of this study were to estimate the incidence of medical consultations due to bite and scratch injuries in humans caused by vertebrate animals, to identify possible risk factors, and to assess bite management habits in primary health care. An annual bite and scratch incidence rate of 325 per 100,000 population was estimated. Consultations peaked during the summer months and geographical differences in the reported incidence were observed. Dogs accounted for more than 60% and cats for about 25% of all cases reported. Animal bites and scratches were frequent in persons under 20 years of age. In most ages, the incidence was higher among women than among men, but not in children under the age of ten years. The incidence of cat bites was especially high in adult women. Bites to the head and neck were most frequent in infants and young children and accounted for approximately one third of the reported cases in this age group. Patients sought medical care principally for primary wound care (52.0%) and for vaccination advice (29.6%). Rabies postexposure prophylaxis was initiated in 1.1% of patients. Wound infection was reported in 10.9% of cases, with cat bites/scratches being more often infected than injuries due to dogs. Hospitalization was reported in 0.3% of patients. Data from the emergency department of two district hospitals showed that head and neck injuries were more frequent in out-patients and a higher proportion of persons presented with wound infections (14.1%). The hospitalization rate for emergency department visits was 4.7%. Animal bites and scratches are common events in Switzerland. They

  11. Demographic, epidemiologic and clinical profile of snake bite cases, presented to Emergency Medicine department, Ahmedabad, Gujarat

    Directory of Open Access Journals (Sweden)

    Bhavesh Jarwani

    2013-01-01

    Full Text Available Aim: Snake bite is a common medical emergency faced mainly by the rural populations in tropical and subtropical countries with heavy rainfall and humid climate. Although India is a single largest contributor of snake bite cases, reporting is very poor. There is hardly any publication of the same from Gujarat state that is developing at a good pace. Hence, we aimed to study the snake bite cases with particular attention to demography, epidemiology, and clinical profile. Settings and Design: The present descriptive, observational study was carried out at the Emergency Medicine Department of a tertiary care center in Ahmedabad, Gujarat. This department is one if the firsts to get recognized by the Medical Council of India. Materials and Methods: This is a cross-sectional single-center study. Cases were entered into the prescribed form, and detailed information regarding demographic, epidemiologic, and clinical parameters was entered. Statistical Method: Data were analyzed using Epi2000. Means and frequencies for each variable were calculated. Results: Majority (67.4% of the snake bite victims were in the age group between 15 and 45 years. Majority were male victims (74.2%. 71% victims of snake bite lived in rural areas. Farmers and laborers were the main victims. 61.2% incidents took place at night time or early morning (before 6 a.m.. 64% patients had bite mark on the lower limb. 40% victims had seen the snake. Eight patients had snake bite, but were asymptomatic. 52% had neuroparalytic manifestation, 34% were asymptomatic, and 9.6% had hemorrhagic manifestation. 14% cases received treatment within 1 h of the bite and 64.84% within 1-6 h after the bite. First aid given was in the form of application of tourniquet (16.2%, local application of lime, chillies, herbal medicine, etc., (1%. 2.20% cases were sensitive to anti-snake venom. Only three patients died. Conclusion: In this region (Gujarat, neuroparalytic manifestation of snake bite is more

  12. Mapping white matter diffusion and cerebrovascular reactivity in carotid occlusive disease

    NARCIS (Netherlands)

    Conklin, J.; Fierstra, J.; Crawley, A. P.; Han, J. S.; Poublanc, J.; Silver, F. L.; Tymianski, M.; Fisher, J. A.; Mandell, D. M.; Mikulis, D. J.

    2011-01-01

    Objective: To characterize the relationship between cerebrovascular reactivity (CVR) and white matter (WM) diffusion in patients with internal carotid artery (ICA) occlusive disease. Methods: In this exploratory observational study, 41 patients with severe stenosis or occlusion of the extracranial I

  13. Comparison of efficacy in crossing femoropopliteal artery occlusions with movable core and hydrophilic guidewires

    DEFF Research Database (Denmark)

    Tønnesen, K H; Bülow, J; Holstein, P;

    1994-01-01

    Compare the recanalization rate of femoropopliteal occlusions between movable core wire guide (MG) and hydrophilic guidewire (HG).......Compare the recanalization rate of femoropopliteal occlusions between movable core wire guide (MG) and hydrophilic guidewire (HG)....

  14. Soft versus hard occlusal splint therapy in the management of temporomandibular disorders (TMDs

    Directory of Open Access Journals (Sweden)

    Sameh A Seifeldin

    2015-10-01

    Conclusions: Both forms of occlusal splints (soft and hard improved TMJ symptoms in patients with MPD or ID of the TMJ. However, the soft occlusal splints exhibited superior results after 4 months of use.

  15. Isolated cilioretinal artery occlusion as an initial manifestation of polycythemia vera

    OpenAIRE

    Elasri Fouad; Souhail H; Reda K; Iferkhass S; Idrissi A; Naoumi A; Oubaaz A

    2010-01-01

    Isolated cilioretinal artery occlusion is a rarely reported initial manifestation of polycythemia vera. In this study, we reported a case of a 65-year-old man with polycythemia vera with cilioretinal artery occlusion as an initial manifestation.

  16. Describing the Relationship between Cat Bites and Human Depression Using Data from an Electronic Health Record

    OpenAIRE

    Hanauer, David A; Naren Ramakrishnan; Seyfried, Lisa S.

    2013-01-01

    Data mining approaches have been increasingly applied to the electronic health record and have led to the discovery of numerous clinical associations. Recent data mining studies have suggested a potential association between cat bites and human depression. To explore this possible association in more detail we first used administrative diagnosis codes to identify patients with either depression or bites, drawn from a population of 1.3 million patients. We then conducted a manual chart review ...

  17. TheraBite exercises to treat trismus secondary to head and neck cancer

    OpenAIRE

    Kamstra, Jolanda I.; Roodenburg, Jan L. N.; Beurskens, Carien H. G.; Reintsema, Harry; Pieter U Dijkstra

    2013-01-01

    The aim of this study was to evaluate the effect of TheraBite exercises on mouth opening and to analyze factors influencing this effect in a patient record evaluation. Effect of exercises with a TheraBite to treat trismus was evaluated in 69 head and neck cancer patients of two university medical centers. Mouth opening was measured as interincisal distance in millimeters. Patient, tumor, and treatment characteristics were analyzed for their relationship with change in mouth opening. Variables...

  18. Ontogenetic Scaling of Theoretical Bite Force in Southern Sea Otters (Enhydra lutris nereis).

    Science.gov (United States)

    Law, Chris J; Young, Colleen; Mehta, Rita S

    2016-01-01

    Sexual dimorphism attributed to niche divergence is often linked to differentiation between the sexes in both dietary resources and characters related to feeding and resource procurement. Although recent studies have indicated that southern sea otters (Enhydra lutris nereis) exhibit differences in dietary preferences as well as sexual dimorphism in skull size and shape, whether these intersexual differences translate to differentiation in feeding performances between the sexes remains to be investigated. To test the hypothesis that scaling patterns of bite force, a metric of feeding performance, differ between the sexes, we calculated theoretical bite forces for 55 naturally deceased male and female southern sea otters spanning the size ranges encountered over ontogeny. We then used standardized major axis regressions to simultaneously determine the scaling patterns of theoretical bite forces and skull components across ontogeny and assess whether these scaling patterns differed between the sexes. We found that positive allometric increases in theoretical bite force resulted from positive allometric increases in physiological cross-sectional area for the major jaw adductor muscle and mechanical advantage. Closer examination revealed that allometric increases in temporalis muscle mass and relative allometric decreases in out-lever lengths are driving these patterns. In our analysis of sexual dimorphism, we found that scaling patterns of theoretical bite force and morphological traits do not differ between the sexes. However, adult sea otters differed in their absolute bite forces, revealing that adult males exhibited greater bite forces as a result of their larger sizes. We found intersexual differences in biting ability that provide some support for the niche divergence hypothesis. Continued work in this field may link intersexual differences in feeding functional morphology with foraging ecology to show how niche divergence has the potential to reinforce sexual

  19. Computer–based method of bite mark analysis: A benchmark in forensic dentistry?

    OpenAIRE

    Nandita Kottieth Pallam; Karen Boaz; Srikant Natrajan; Minu Raj; Nidhi Manaktala; Lewis, Amitha J

    2016-01-01

    Aim: The study aimed to determine the technique with maximum accuracy in production of bite mark overlay. Materials and Methods: Thirty subjects (10 males and 20 females; all aged 20–30 years) with complete set of natural upper and lower anterior teeth were selected for this study after obtaining approval from the Institutional Ethical Committee. The upper and lower alginate impressions were taken and die stone models were obtained from each impression; overlays were produced from the biting ...

  20. Development of bite guard for wireless monitoring of bruxism using pressure-sensitive polymer

    OpenAIRE

    Kim, Jung Ho; McAuliffe, Padraig; O’Connel, Brian; Diamond, Dermot; Lau, King-Tong

    2010-01-01

    A wireless pressure sensing bite guard has been developed for monitoring the progress of bruxism (teeth grinding during sleep); as well as for protecting the teeth from damages. For sensing the grinding event effectively in restricted space and hostile environment, a pressure sensitive polymer composite which is safe for intra oral applications has been fabricated and encapsulated into a conventional bite guard. Also encapsulated was a microcontroller-based electronic circuit which was built ...

  1. Determining the Role of Hand Feeding Practices in Accidental Shark Bites on Scuba Divers

    OpenAIRE

    Clua, E.E.; Torrente, F.

    2015-01-01

    International audience; Introduction: Shark-based ecotourism is significantly developing around the world, often without appropriate management of risk. This activity involves a risk of accidental bites on divers that can be quite severe or even fatal. Objectives: To determine if ecotourism companies' liability can be engaged in the context of bites on scuba divers in presence of hand-feeding practices, supporting the legitimacy of financial compensation for the victims. Methods: We analyzed ...

  2. Using clear aligner therapy to correct malocclusion with crowding and an open bite.

    Science.gov (United States)

    Harnick, David J

    2012-01-01

    Clear aligner therapy (CAT) has been used successfully to correct minor spacing and crowding. It generally has not been indicated in more complicated malocclusions such as skeletal discrepancies and open bites; however, recent advances in technology and practitioner expertise now allow the use of CAT in these situations. This case report demonstrates the use of a CAT system (Invisalign) to correct a Class II malocclusion with crowding and an open bite tendency.

  3. Kissing Bug (Triatoma spp.) Intrusion into Homes: Troublesome Bites and Domiciliation

    OpenAIRE

    Klotz, Stephen A.; F. Mazda Shirazi; Keith Boesen; Beatty, Norman L.; Dorn, Patricia L.; Shannon Smith; Schmidt, Justin O

    2016-01-01

    Kissing bugs (Triatoma spp.) frequently enter homes and bite human and pet occupants. Bites may lead to severe allergic reactions and, in some cases, death. Kissing bugs are also vectors of Trypanosoma cruzi, the cause of Chagas disease. In general, modern houses in the United States are not conducive to domiciliation of kissing bugs (bugs living out their entire life within the home with the presence of eggs, nymphs, adults, and exuviae). Construction features such as concrete foundations, s...

  4. Ontogenetic Scaling of Theoretical Bite Force in Southern Sea Otters (Enhydra lutris nereis).

    Science.gov (United States)

    Law, Chris J; Young, Colleen; Mehta, Rita S

    2016-01-01

    Sexual dimorphism attributed to niche divergence is often linked to differentiation between the sexes in both dietary resources and characters related to feeding and resource procurement. Although recent studies have indicated that southern sea otters (Enhydra lutris nereis) exhibit differences in dietary preferences as well as sexual dimorphism in skull size and shape, whether these intersexual differences translate to differentiation in feeding performances between the sexes remains to be investigated. To test the hypothesis that scaling patterns of bite force, a metric of feeding performance, differ between the sexes, we calculated theoretical bite forces for 55 naturally deceased male and female southern sea otters spanning the size ranges encountered over ontogeny. We then used standardized major axis regressions to simultaneously determine the scaling patterns of theoretical bite forces and skull components across ontogeny and assess whether these scaling patterns differed between the sexes. We found that positive allometric increases in theoretical bite force resulted from positive allometric increases in physiological cross-sectional area for the major jaw adductor muscle and mechanical advantage. Closer examination revealed that allometric increases in temporalis muscle mass and relative allometric decreases in out-lever lengths are driving these patterns. In our analysis of sexual dimorphism, we found that scaling patterns of theoretical bite force and morphological traits do not differ between the sexes. However, adult sea otters differed in their absolute bite forces, revealing that adult males exhibited greater bite forces as a result of their larger sizes. We found intersexual differences in biting ability that provide some support for the niche divergence hypothesis. Continued work in this field may link intersexual differences in feeding functional morphology with foraging ecology to show how niche divergence has the potential to reinforce sexual

  5. Deadly case of Pasteurella multocida aortitis and mycotic aneurysm following a cat bite

    OpenAIRE

    Cho, Dennis Dane; Berliner, Yaniv; Carr, David

    2016-01-01

    Animal bites are frequently encountered in the emergency department (ED). Aortitis leading to mycotic abdominal aortic aneurysm is a rare and potentially deadly complication of Pasteurella multocida (P. multocida) following an animal bite. We present the case of a 68-year-old male who presented to the ED after falling at home. He complained of weakness and abdominal pain. He was in septic shock and was treated empirically with broad-spectrum antibiotics and intravenous fluids. He reported pre...

  6. ZIKA VIRUS INFECTION IN AUSTRALIA FOLLOWING A MONKEY BITE IN INDONESIA.

    Science.gov (United States)

    Leung, Grace H Y; Baird, Robert W; Druce, Julian; Anstey, Nicholas M

    2015-05-01

    A traveller returning to Australia developed Zika virus infection, with fever, rash and conjunctivitis, with onset five days after a monkey bite in Bali, Indonesia. Flavivirus RNA detected on PCR from a nasopharyngeal swab was sequenced and identified as Zika virus. Although mosquito-borne transmission is also possible, we propose the bite as a plausible route of transmission. The literature for non-vector transmissions of Zika virus and other flaviviruses is reviewed.

  7. Osteomyelitis of the Mandibular Symphysis Caused by Brown Recluse Spider Bite

    OpenAIRE

    Naidu, Deepak K.; Ghurani, Rami; Salas, R. Emerick; Mannari, Rudolph J.; Robson, Martin C.; Payne, Wyatt G.

    2008-01-01

    Background: Brown recluse spider bites cause significant trauma via their tissue toxic venom. Diagnosis of these injuries and envenomation is difficult and many times presumptive. Treatment is varied and dependent upon presentation and course of injury. Materials and Methods: We present a case of a previously unreported incidence of osteomyelitis of the mandible as a result of a brown recluse spider bite. A review of the literature and discussion of diagnosis and treatment of brown recluse sp...

  8. Reversible Myocarditis and Pericarditis after Black Widow Spider Bite or Kounis Syndrome?

    OpenAIRE

    Mehmet Yaman; Turkan Mete; Ismail Ozer; Elif Yaman; Osman Beton

    2015-01-01

    Clinical manifestation of black widow spider bite is variable and occasionally leads to death in rural areas. Cases of myocarditis and pericarditis after black widow spider bite are rare and the associated prognostic significance is unknown. Kounis syndrome has been defined as an acute coronary syndrome in the setting of allergic or hypersensitivity and anaphylactic or anaphylactoid insults that manifests as vasospastic angina or acute myocardial infarction or stent thrombosis. Allergic myoca...

  9. Treatment of a Class II division 1 anterior open bite malocclusion.

    Science.gov (United States)

    Ong, H B

    2001-06-01

    A case report of an 11-year-old Caucasian female who presented with a Class II div I anterior open bite malocclusion. Overjet is 6 mm and the anterior open bite 2 mm. There was a history of digit sucking till she was eight years old. She was successfully treated by non-extraction with pre-adjusted Edgewise appliances and high-pull headgear for a period of 27 months.

  10. Philodryas patagoniensis bite and local envenoming Picada por Philodryas patagoniensis e envenenamento local

    OpenAIRE

    Sérgio de Andrade Nishioka; Paulo Vitor Portella Silveira

    1994-01-01

    A 5-year-old boy bitten by a specimen of Philodryas patagoniensis, a colubrid snake currently classified as nonvenomous, developed signs of local envenoming characterized by swelling and warmth on the bitten limb. This is the first time that local envenoming following Philodryas patagoniensis bite is recognized. Based on the clinical findings and misidentification of the snake, the patient was treated as a victim of Bothrops bite, having received unnecessarily the specific antivenom. Educatio...

  11. Tail Biting in Pigs: Blood Serotonin and Fearfulness as Pieces of the Puzzle?

    OpenAIRE

    Ursinus, Winanda W.; Reenen, Cornelis G. van; Inonge Reimert; J. Elizabeth Bolhuis

    2014-01-01

    Tail biting in pigs is a widespread problem in intensive pig farming. The tendency to develop this damaging behaviour has been suggested to relate to serotonergic functioning and personality characteristics of pigs. We investigated whether tail biting in pigs can be associated with blood serotonin and with their behavioural and physiological responses to novelty. Pigs (n = 480) were born in conventional farrowing pens and after weaning at four weeks of age they were either housed barren (B) o...

  12. Jejunal morphology and blood metabolites in tail biting, victim and control pigs.

    Science.gov (United States)

    Palander, P A; Heinonen, M; Simpura, I; Edwards, S A; Valros, A E

    2013-09-01

    Tail biting has several identified feeding-related risk factors. Tail biters are often said to be lighter and thinner than other pigs in the pen, possibly because of nutrition-related problems such as reduced feed intake or inability to use nutrients efficiently. This can lead to an increase in foraging behavior and tail biting. In this study, a total of 55 pigs of different ages were selected according to their tail-biting behavior (bouts/hour) and pen-feeding system to form eight experimental groups: tail-biting pigs (TB), victim pigs (V) and control pigs from a tail-biting pen (Ctb) and control pen (Cno) having either free access to feed with limited feeding space or meal feeding from a long trough. After euthanasia, a segment of jejunal cell wall was cut from 50 cm (S50) and 100 cm (S100) posterior to the bile duct. Villus height, crypt depth and villus : crypt ratio (V : C) were measured morphometrically. Blood serum concentration of minerals and plasma concentration of amino acids (AA) was determined. Villus height was greater in Cno than Ctb pigs in the proximal and mid-jejunum (P pigs, and that of Pi in V compared with all the other pigs. Many non-essential AA were lower in pigs from tail-biting pens, and particularly in victim pigs. Free access feeding with shared feeding space was associated with lower levels of essential AA in blood than meal feeding with simultaneous feeding space. Our data suggest that being a pig in a tail-biting pen is associated with decreased jejunal villus height and blood AA levels, possibly because of depressed absorption capacity, feeding behavior or environmental stress associated with tail biting. Victim pigs had lower concentrations of AA and Pi in plasma, possibly as a consequence of being bitten. PMID:23597306

  13. Evidence for a link between tail biting and central monoamine metabolism in pigs (Sus scrofa domestica).

    Science.gov (United States)

    Valros, Anna; Palander, Pälvi; Heinonen, Mari; Munsterhjelm, Camilla; Brunberg, Emma; Keeling, Linda; Piepponen, Petteri

    2015-05-01

    Tail biting in pigs is a major welfare problem within the swine industry. Even though there is plenty of information on housing and management-related risk factors, the biological bases of this behavioral problem are poorly understood. The aim of this study was to investigate a possible link between tail biting, based on behavioral recordings of pigs during an ongoing outbreak, and certain neurotransmitters in different brain regions of these pigs. We used a total of 33 pigs at a farm with a long-standing problem of tail biting. Three equally big behavioral phenotypic groups, balanced for gender and age were selected, the data thus consisting of 11 trios of pigs. Two of the pigs in each trio originated from the same pen: one tail biter (TB) and one tail biting victim (V). A control (C) pig was selected from a pen without significant tail biting in the same farm room. We found an effect of tail biting behavioral phenotype on the metabolism of serotonin and dopamine, with a tendency for a higher 5-HIAA level in the prefrontal cortex (PFC) of TB compared to the other groups, while V pigs showed changes in both serotonin and dopamine metabolism in the striatum (ST) and limbic cortex (LC). Trp:BCAA and Trp:LNAA correlated positively with serotonin and 5-HIAA in the PFC, but only in TB pigs. Furthermore, in both ST and LC, several of the neurotransmitters and their metabolites correlated positively with the frequency of bites received by the pig. This is the first study indicating a link between brain neurotransmission and tail biting behavior in pigs with TB pigs showing a tendency for increased PFC serotonin metabolism and V pigs showing several changes in central dopamine and serotonin metabolism in their ST and LC, possibly due to the acute stress caused by being bitten. PMID:25728243

  14. Influence of tail biting on weight gain, lesions and condemnations at slaughter of finishing pigs

    OpenAIRE

    Brenda Maria F.P.P. Marques; Mari L. Bernardi; Carolini F. Coelho; Mirian Almeida; Oscar E. Morales; Tiago J. Mores; Sandra M. Borowski; David E.S.N. Barcellos

    2012-01-01

    The present study assessed the association of tail-biting lesions in finishing pigs with weight gain, occurrence of locomotion or respiratory disorders and abscesses during finishing period, and carcass condemnation at slaughter. The study was carried out on 4 different farms. For each animal with a tail biting lesion, two control pigs were selected. The total number of animals in the study was 312, with 104 of them being tail-bitten. Tail lesions were classified according to the degree of se...

  15. Endemic mansonellosis in Emohua Local Government Area, Nigeria: human parasitaemia and Culicoides biting patterns

    Directory of Open Access Journals (Sweden)

    E.C. Uttah, S. Etim, C. Okonofua & O.E. Effiom

    2011-03-01

    Full Text Available Background & objectives: The study was aimed at elucidating the prevalence and intensity of Mansonellaperstans microfilaraemia in the Emohua Local Government Area, Nigeria, and ascertaining the abundance,circadian, and the annual biting patterns of the Culicoides vector.Methods: Thick smear of 50 μl finger-prick blood stained with Giemsa was examined microscopically in across-sectional study. Vector landing collection on human bait was employed in a longitudinal study of thevector biting patterns, carried out between July 2005 and August 2006.Results: Of 1486 individuals examined, 11.2% of both males and females were positive for M. perstansmicrofilaraemia. Microfilaraemia appeared early in life. The overall geometric mean intensity among those withpositive microfilaraemia was 117 mf/ml (121 mf/ml for males and 113 mf/ml for females. The differences ingeometric mean intensity between different age groups were statistically significant (one-way analysis of variance;p <0.05, being highest in the oldest age group (266 mf/ml. A total of 1183 female Culicoides sp were caughtfrom September 2005 to August 2006. The abundance of Culicoides sp was seasonal. The circadian bitingactivity had a broad peak between 0700 and 1200 hrs. The monthly biting rates ranged from zero bite per personper month in January 2006 to 1151 bites per person per month in June 2006. The annual biting rate was 7382bites per person per year.Conclusion: Majority of those with positive microfilaraemia were poor socioeconomically, underscoring theneed for health education and application of effective control measures against Culicoides biting midges inEmohua.

  16. Analysis of Dog Bites in Kashmir: An Unprovoked Threat to Population

    OpenAIRE

    Kouser Sideeq, Sufoora Bilquees, Mohammad Salimkhan, Inaam Ul Haq

    2014-01-01

    Objectives: The study focuses on the analysis of regional distribution, pattern and outcome of dog bite injuries sustained in Kashmiri population and assessing the burden on society. Methods: In this retrospective survey antirabies clinic record of all patients who sought medical attention after a dog bite in tertiary centre of Kashmir SMHS hospital between April2010 to May 2013 were reviewed. Results: A total of 13852 patients registered over a period of three year with mean age 27.69...

  17. Non-occlusive mesenteric ischemia: etiology, diagnosis, and interventional therapy

    Energy Technology Data Exchange (ETDEWEB)

    Trompeter, Markus; Brazda, Thurid; Remy, Christopher T.; Reimer, Peter [Department of Radiology, Staedtisches Klinikum Karlsruhe (Germany); Vestring, Thomas [Department of Radiology, Diakonie-Krankenhaus Rotenburg/Wuemme, Goettingen (Germany)

    2002-05-01

    Non-occlusive mesenteric ischemia (NOMI) compromises all forms of mesenteric ischemia with patent mesenteric arteries. It generally affects patients over 50 years of age suffering from myocardial infarction, congestive heart failure, aortic insufficiency, renal or hepatic disease and patients following cardiac surgery. Non-occlusive disease accounts for 20-30% of all cases of acute mesenteric ischemia with a mortality rate of the order of 50%. Acute abdominal pain may be the only early presenting symptom of mesenteric ischemia. Non-invasive imaging modalities, such as CT, MRI, and ultrasound, are able to evaluate the aorta and the origins of splanchnic arteries. Despite the technical evolution of those methods, selective angiography of mesenteric arteries is still the gold standard in diagnosing peripheral splanchnic vessel disease. In early non-occlusive mesenteric ischemia, as opposed to occlusive disease, there is no surgical therapy. It is known that mesenteric vasospasm persists even after correction of the precipitating event. Vasospasm frequently responds to direct intra-arterial vasodilator therapy, which is the only treatment that has been shown to be effective. (orig.)

  18. Occlusal factors are not related to self-reported bruxism

    NARCIS (Netherlands)

    D. Manfredini; C.M. Visscher; L. Guarda-Nardini; F. Lobbezoo

    2012-01-01

    AIMS: To estimate the contribution of various occlusal features of the natural dentition that may identify self-reported bruxers compared to nonbruxers. METHODS: Two age- and sex-matched groups of self-reported bruxers (n = 67) and self-reported nonbruxers (n = 75) took part in the study. For each p

  19. Non-occlusive mesenteric ischemia: etiology, diagnosis, and interventional therapy

    International Nuclear Information System (INIS)

    Non-occlusive mesenteric ischemia (NOMI) compromises all forms of mesenteric ischemia with patent mesenteric arteries. It generally affects patients over 50 years of age suffering from myocardial infarction, congestive heart failure, aortic insufficiency, renal or hepatic disease and patients following cardiac surgery. Non-occlusive disease accounts for 20-30% of all cases of acute mesenteric ischemia with a mortality rate of the order of 50%. Acute abdominal pain may be the only early presenting symptom of mesenteric ischemia. Non-invasive imaging modalities, such as CT, MRI, and ultrasound, are able to evaluate the aorta and the origins of splanchnic arteries. Despite the technical evolution of those methods, selective angiography of mesenteric arteries is still the gold standard in diagnosing peripheral splanchnic vessel disease. In early non-occlusive mesenteric ischemia, as opposed to occlusive disease, there is no surgical therapy. It is known that mesenteric vasospasm persists even after correction of the precipitating event. Vasospasm frequently responds to direct intra-arterial vasodilator therapy, which is the only treatment that has been shown to be effective. (orig.)

  20. Example-Based Human Pose Recovery under Predicted Partial Occlusions

    NARCIS (Netherlands)

    Poppe, Ronald; Babuska, Robert; Groen, Frans C A.

    2010-01-01

    For human pose recovery, the presence of occlusions due to objects or other persons in the scene remains a difficult problem to cope with. However, recent advances in the area of human detection allow for simultaneous segmentation of humans and the prediction of occluded regions. In this chapter, we

  1. Central retinal vein occlusion: A patient with systemic sclerosis

    Directory of Open Access Journals (Sweden)

    Karadžić Jelena

    2016-01-01

    Full Text Available Introduction. Scleroderma (systemic sclerosis is a severe chronic connective tissue disease, which results in involvement of numerous internal organs. Changes in the eye are the consequences of organ-specific manifestations of scleroderma or adverse effects of immunosuppressive treatment applied. Case report. We reported a 42-year-old woman with systemic sclerosis and acute deterioration of vision in the left eye, with visual acuity 0.9. After thorough clinical examination, including fluorescein angiography and optical coherence tomography, the diagnosis of nonischemic central retinal vein occlusion was made. Further biochemical, rheumatological and immunological investigation, apart from inactive systemic sclerosis, showed normal findings. Therefore, the cause of central retinal vein occlusion could only be attributed to the microvascular changes in systemic sclerosis. After three months, visual acuity deteriorated to 0.6 due to the development of cystoid macular edema. The patient received intravitreal injection of bevacizumab and after a single dose visual acuity improved to 0.9. After a 6- month follow-up, macular edema resolved and visual acuity stabilized. Conclusion. According to our knowledge and current data from the literature, central retinal vein occlusion is a rare vision threatening manifestation of scleroderma. There are only few published case reports on central vein occlusion in scleroderma patients. Examination of the ocular fundus is recommended for evaluation of vascular disease in patients with systemic sclerosis.

  2. Segmentally enclosed thrombolysis in percutaneous transluminal angioplasty for femoropopliteal occlusions

    DEFF Research Database (Denmark)

    Jørgensen, B; Tønnesen, K H; Nielsen, J D;

    1991-01-01

    Segmentally enclosed thrombolysis (SET) was performed immediately following 34 percutaneous transluminal angioplasties (PTAs) for femoropopliteal occlusions. The dilated segment was sealed off with a double balloon catheter, and recombinant tissue plasminogen activator (rt-PA) 1 mg/ml and heparin...

  3. Endovascular treatment for right subclavian artery occlusion: techniques and results

    International Nuclear Information System (INIS)

    Objective: To evaluate the technique and result of endovascular treatment for right subclavian artery stenosis or occlusion. Methods: Seventeen patients [13 males, 4 females; (56 ± 11) years old] with right subclavian artery stenosis or occlusion were treated with endovascular surgery which included recanalization, balloon angioplasty and stenting via femoral or brachial artery route. Cerebral protection devices were used in 6 cases to avoid cerebral embolism. Results: Sixteen of the seventeen patients acquired successful recanalization in 8 cases with subclavian artery stenosis (100% technical success rate) and in other 8 cases with subclavian artery occlusion (88.9% technical success rate). Five cases were treated with balloon angioplasty, and 11 cases were treated with balloon angioplasty combined with stenting. Good patency was seen in the 16 cases immediately after the procedure. The cerebral protection devices prevented all the cases from cerebral embolism and were retrieved successfully. Sixteen cases were followed up from 1 to 66 months [mean (24 ± 18) months]. Restenosis was found in one case 10 months later and was successfully treated with re-PTA. One case with aortoarteritis died of cerebral infarction 18 months later. No symptom recurrence was found in other cases and ultrasound or CTA of followup showed excellent patency. Conclusions: Balloon angioplasty and stenting are safe and effective for the treatment of right subclavian artery occlusion. (authors)

  4. Central retinal artery occlusion: an unusual complication of snakebite

    Directory of Open Access Journals (Sweden)

    A. Bhalla

    2004-01-01

    Full Text Available Snakebites are endemic in some parts of India, being associated with a number of complications. Ocular disturbances are rare, except for injury to the cornea or conjunctiva when the eye is directly exposed to the venom. In this work, we present a case of central retinal artery occlusion caused by snakebite.

  5. Pedestrian Counting with Occlusion Handling Using Stereo Thermal Cameras

    DEFF Research Database (Denmark)

    Kristoffersen, Miklas Strøm; Dueholm, Jacob Velling; Gade, Rikke;

    2016-01-01

    for pedestrian counting based on clustering and tracking of the 3D point clouds. The method is tested on two five-minute video sequences captured at a public event with a moderate density of pedestrians and heavy occlusions. The counting performance is compared to the manually annotated ground truth and shows...

  6. Occlusal wear of provisional implant-supported restorations

    NARCIS (Netherlands)

    Santing, Hendrik J.; Kleverlaan, Cornelis J.; Werner, Arie; Feilzer, Albert J.; Raghoebar, Gerry M.; Meijer, Henny J. A.

    2015-01-01

    BACKGROUND: Implant-supported provisional restorations should be resistant to occlusal wear. PURPOSE: The purpose of this laboratory study was to evaluate three-body wear of three indirect laboratory composite resins, five chair side bis-acryl resin-based materials, and two chair side methacrylate-b

  7. Occlusal wear of provisional implant-supported restorations

    NARCIS (Netherlands)

    H.J. Santing; C.J. Kleverlaan; A. Werner; A.J. Feilzer; G.M. Raghoebar; H.J.A. Meijer

    2015-01-01

    Background Implant-supported provisional restorations should be resistant to occlusal wear. Purpose The purpose of this laboratory study was to evaluate three-body wear of three indirect laboratory composite resins, five chair side bis-acryl resin-based materials, and two chair side methacrylate-bas

  8. Left atrial appendage occlusion for stroke prevention in atrial fibrillation

    DEFF Research Database (Denmark)

    Tzikas, Apostolos; Shakir, Samera; Gafoor, Sameer;

    2015-01-01

    Aims: To investigate the safety, feasibility, and efficacy of left atrial appendage occlusion (LAAO) with the AMPLATZER Cardiac Plug (ACP) for stroke prevention in patients with atrial fibrillation (AF). Methods and results: Data from consecutive patients treated in 22 centres were collected...

  9. Bites and stings from venomous animals: a global overview.

    Science.gov (United States)

    White, J

    2000-02-01

    Venomous and poisonous animals are a significant cause of global morbidity and mortality. This Seminar will cover selected aspects of these animals, their venoms/poisons, and their clinical impact on humankind, from a global perspective, but with a distinctive Australian flavor and a clinical emphasis. Venomous snakes are found throughout most of the world, including many oceans, and have evolved a variety of highly effective toxins and methods of delivery. Their impact on humans is considerable, most current data suggesting they cause in excess of 3 million bites per year with more than 150,000 deaths. Particularly in the rural tropics, snakebite morbidity and mortality has a significant human medical and economic toll. The major groups of snakes causing bites are the vipers, the elapids (cobra type), the sea snakes, the side-fanged vipers, and the back-fanged colubrids. Australian venomous snakes are nearly all elapids and have evolved some of the most toxic of all snake venoms. Their effects include potent procoagulants and anticoagulants, neurotoxins, myotoxins, and nephrotoxins, but a distinct absence of the major local necrotoxins found in some non-Australian elapids and many vipers. The effect of these toxins on humans is not limited to envenoming, for the toxins are proving invaluable as research tools and diagnostic agents, and may even have a future as precursors of therapeutic agents. Because of the high toxicity and diversity of Australian elapids, a variety of monovalent antivenoms have been developed. There is also a venom detection kit to determine the type of snake and allow targeted antivenom therapy. The kit has also increased information available on diagnostic patterns of envenoming for each species. Australia is also home to the world's most lethal spiders, the funnel webs of eastern Australia, as well as the red back spider, the single most common reason for antivenom treatment in Australia. The latter spiders have been accidently exported to

  10. Risk factors for vulva biting in breeding sows in south-west England.

    Science.gov (United States)

    Rizvi, S; Nicol, C J; Green, L E

    1998-12-12

    A postal survey was conducted on 410 pig farms in south-west England to investigate the risk factors for vulva biting. The results of the bivariate analyses indicated that group housing, keeping a boar in the same pen and the number of sows per drinker were significantly associated (P biting in service sows. Group housing, group size, keeping a boar in the same pen, straw bedding, electronic sow feeders, feeding once daily, providing water automatically and the number of sows per drinker were significantly associated with vulva biting in dry sows. Vulva biting was also significantly associated with an increased percentage of culled sows and the occurrence of tail biting on the farm. A logistic regression analysis showed that group size and the number of sows per drinker were significant risk factors for vulva biting in service sows, and once a day feeding, group size, the number of sows per drinker and providing water automatically were significant risk factors for dry sows. PMID:9885129

  11. Identifying the biting species in snakebite by clinical features: an epidemiological tool for community surveys.

    Science.gov (United States)

    Pathmeswaran, A; Kasturiratne, A; Fonseka, M; Nandasena, S; Lalloo, D G; de Silva, H J

    2006-09-01

    The outcome of snakebite is related to the biting species but it is often difficult to identify the biting snake, particularly in community settings. We have developed a clinical scoring system suitable for use in epidemiological surveys, with the main aim of identifying the presumed biting species in those with systemic envenoming who require treatment. The score took into account ten features relating to bites of the five medically important snakes in Sri Lanka, and an algorithm was developed applying different weightings for each feature for different species. A systematically developed artificial data set was used to fine tune the score and to develop criteria for definitive identification. The score was prospectively validated using 134 species-confirmed snakebites. It correctly differentiated the bites caused by the three snakes that commonly cause major clinical problems (Russell's viper (RV), kraits and cobra) from other snakes (hump-nosed viper (HNV) and saw-scaled viper (SSV)) with 80% sensitivity and 100% specificity. For individual species, sensitivity and specificity were, respectively: cobra 76%, 99%; kraits 85%, 99%; and RV 70%, 99%. As anticipated, the score was insensitive in the identification of bites due to HNV and SSV. PMID:16412486

  12. Fundus artery occlusion caused by cosmetic facial injections

    Institute of Scientific and Technical Information of China (English)

    Chen Yanyun; Wang Wenying; Li Jipeng; Yu Yajie; Li Lin; Lu Ning

    2014-01-01

    Background With the increasing popularity of cosmetic facial filler injections in recent years,more and more associated complications have been reported.However,the causative surgical procedures and preventative measures have not been studied well up to now.The aim of this stady was to investigate the clinical characteristics and visual prognosis of fundus artery occlusion resulting from cosmetic facial filler injections.Methods Thirteen consecutive patients with fundus artery occlusion caused by facial filler injections were included.Main outcome measures were filler materials,injection sites,best-corrected visual acuity (BCVA),fundus fluorescein angiography,and associated ocular and systemic manifestations.Results Eleven patients had ophthalmic artery occlusion (OAO) and one patient each had central retinal artery occlusion (CRAO) and anterior ischemic optic neuropathy (AION).Injected materials included autologous fat (seven cases),hyaluronic acid (five cases),and bone collagen (one case).Injection sites were the frontal area (five cases),periocular area (two cases),temple area (two cases),and nose area and nasal area (4 cases).Injected autologous fat was associated with worse final BCVA than hyaluronic acid.The BCVA of seven patients with autologous fat injection in frontal area and temple area was no light perception.Most of the patients with OAO had ocular pain,headache,ptosis,ophthalmoplegia,and no improvement in final BCVA.Conclusions Cosmetic facial injections can cause fundus artery occlusion.Autologous fat injection tends to be associated with painful blindness,ptosis,ophthalmoplegia,and poor visual outcomes.The prognosis is much worse with autologous fat injection than hyaluronic acid injection.

  13. The effect of prolonged monocular occlusion on latent nystagmus in the treatment of amblyopia

    NARCIS (Netherlands)

    H.J. Simonsz (Huib)

    1989-01-01

    textabstractWe recorded eye movements in 5 patients with latent nystagmus (LN) before and after 2 days of occlusion of the better eye. The slow-phase speed of the nystagmus (SPS) was in general, before occlusion, lower when the better eye fixated but, after occlusion, lower when the worse eye fixate

  14. Digital Evaluation of Functional Occlusion Parameters and their Association with Temporomandibular Disorders

    OpenAIRE

    Haralur, Satheesh B.

    2013-01-01

    Context: Dental researchers are contradictory in their opinion on the role of occlusion in TMD. Occlusal evaluation of both conventional and digital methods in TMD patients will provide the accurate information about the factors accountable for occlusal instability. Identifying the factors responsible will facilitate precise diagnosis and treatment for TMD.

  15. Má oclusão Classe I de Angle, com mordida aberta anterior, tratada com extração de dentes permanentes Angle Class I malocclusion, with anterior open bite, treated with extraction of permanent teeth

    Directory of Open Access Journals (Sweden)

    Mírian Aiko Nakane Matsumoto

    2011-02-01

    Full Text Available A mordida aberta é uma anomalia com características distintas que, além da complexidade dos múltiplos fatores etiológicos, traz consequências estéticas e funcionais. Muitas alternativas têm sido utilizadas em seu tratamento, entre elas a grade palatina, forças ortopédicas, ajuste oclusal, camuflagem com ou sem exodontias, mini-implantes ou miniplacas e cirurgia ortognática. O diagnóstico preciso e a determinação da etiologia permitem estabelecer os objetivos e o plano de tratamento ideal para essa má oclusão. O presente relato descreve o tratamento de uma má oclusão Classe I de Angle, com padrão esquelético de Classe II e mordida aberta anterior, realizado em duas fases e que 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.Open bite is an anomaly with distinct characteristics which, in addition to involving complex, multiple etiologic factors, entails aesthetic and functional consequences. Many alternative approaches have been employed to treat open bite, including palatal crib, orthopedic forces, occlusal adjustment, camouflage with or without extractions, mini-implants or mini-plates, and orthognathic surgery. By determining accurate diagnosis and etiology professionals can set the goals and ideal treatment plan for this malocclusion. This report, describing the two stages treatment of a Angle Class I malocclusion with Class II skeletal pattern and anterior open bite, was presented to the Brazilian Board of Orthodontics and Dentofacial Orthopedics (BBO, representative of category 2, as partial fulfillment of the requirements for obtaining the title of BBO Diplomate.

  16. CLINICO EPIDEMIOLOGICAL PROFILE OF WILD ANIMAL BITE VICTIMS ATTENDING ANTI RABIES CLINIC AT GOVERNMENT TERTIARY CARE CENTRE IN MANDYA

    Directory of Open Access Journals (Sweden)

    Jahnavi

    2014-11-01

    Full Text Available : INTRODUCTION: Rabies is an acute viral disease that causes fatal encephalitis in virtually all the warm blooded animals including man. In India it is estimated that annually 17.4 million animal bite cases occur and 20, 000 deaths occur due to human rabies. Dogs are responsible for about 97%of the human rabies, followed by cats (2%, jackals, mongoose and others (1%. There is scarcity of literature regarding human rabies due to wild animals. OBJECTIVES: To describe the socio- demographic characteristics of wild animal bite victims attending Anti Rabies Clinic (ARC, Mandya Institute of Medical Sciences (MIMS, Mandya and to describe the circumstances, characteristics of bite and post exposure prophylactic measures taken to prevent rabies. METHODOLOGY: This hospital based case record analysis was done for a period of 3 years from January 2011 to December 2013 at Anti Rabies Clinic (ARC, Mandya Institute of Medical Sciences, Mandya. The details regarding the socio demographic characteristics of bite victims, characteristics of the bite wound and post exposure prophylactic measures taken to prevent rabies were collected using case records of wild animal bite victims. RESULTS: A total of 12, 798 animal bite victims had attended ARC during the study period, of which 67 (0.52% cases were exposed to wild animals. Of these 67 cases, 45 (67.2% of the victims were exposed to monkey and 13 (19.4% were exposed to wild boar. 45 (67.2% of the wild animal bite victims were in the age group of 15 to 60 years, 49 (73.1% were males and 22 (32.8% belonging to class IV socio economic status. Many of the monkey bites happened when the monkey was trying to snatch food from the victims and while other wild animal bites happened when the farmers were guarding their field. 40 (59.7% had bites on upper limb. 51 (76.1% had washed the wound with soap and water before coming to ARC. RIG was advised to all victims but was taken by 49 (73.1% of the bite victims. All four doses

  17. Bites, stings, and rigors: clinical considerations in African operations.

    Science.gov (United States)

    Lynch, James H; Verlo, April R; Givens, Melissa L; Munoz, Cesar E

    2014-01-01

    The natural health threats in Africa pose daunting clinical challenges for any provider, as evidenced by the current Ebola epidemic in West Africa, but the threat is multiplied for the Special Operations provider on the continent who faces these challenges with limited resources and the tyranny of distance. The majority of operationally significant health risks can be mitigated by strict adherence to a comprehensive force health protection plan. The simplest, yet most effective, technique for preventing mosquito-borne diseases is the prevention of mosquito bites with repellent, bed nets, and appropriate clothing in addition to chemoprophylaxis. Some of the more likely or lethal infectious diseases encountered on the continent include malaria, Chikungunya, dengue, human immunodeficiency virus, and Ebola. Venomous snakes pose a particular challenge since the treatment can be as deadly as the injury. Providers supporting African operations should educate themselves on the clinical characteristics of possible envenomations in their area while promoting snake avoidance as the primary mitigation measure. To succeed in Africa, the Special Operations provider must consider how to meet these challenges in an environment where there may not be reliable evacuation, hospitalization, or logistics channels. PMID:25399379

  18. EMG, bite force, and elongation of the masseter muscle under isometric voluntary contractions and variations of vertical dimension.

    Science.gov (United States)

    Manns, A; Miralles, R; Palazzi, C

    1979-12-01

    The relation EMG activity, bite force, and muscular elongation was studied in eight subjects with complete natural dentition during isometric contractions of the masseter muscle, measured from 7 mm to almost maximum jaw opening. EMG was registered with superficial electrodes and bite force with a gnathodynamometer. In series 1, recordings of EMG activity maintaining bite force constant (10 and 20 kg) show that EMG is high when the bite opening is 7 mm, decreases from 15 to 20 mm, and then increases again as jaw opening approaches maximum opening. In series 2, recordings of bite force maintaining EMG constant show that bite force increases up to a certain range of jaw opening (around 15 to 20 mm) and then decreases as we approach maximum jaw opening. Results show that there is for each experimental subject a physiologically optimum muscular elongation of major efficiency where the masseter develops highest muscular force with least EMG activity.

  19. Lateral occlusion schemes in natural and minimally restored permanent dentition: a systematic review.

    Science.gov (United States)

    Abduo, J; Tennant, M; McGeachie, J

    2013-10-01

    Clinicians commonly encounter the dilemma of which lateral occlusion schemes is most suitable for a specific patient. The aim of this review is to evaluate the prevalence of the lateral occlusion schemes that exist naturally. An electronic search was completed through PubMed (MEDLINE), Google Scholar and Cochrane Library. The search was confined to peer-reviewed studies published in English, up to April 2013. The literature search was supplemented by manual searching through the bibliography lists of the selected studies. The initial search retrieved a total of 575 studies. After applying the selection criteria, only 12 studies were suitable for inclusion. The Critical Appraisal Skills Programme (CASP) tools were utilised to appraise the quality of the studies. The prevalence of canine-guided, group function and balanced occlusions was reported. Overall, there was a clear variability between the studies. The prevalence of the lateral occlusion schemes appears to be influenced by the following factors: (i) the magnitude of excursion, (ii) an individual's age and (iii) the static occlusal relationship. During complete excursion, the canine-guided occlusion tends to be more frequently observed. After partial excursion, the most prevalent lateral occlusion schemes was group function occlusion. With ageing, the prevalence of canine-guided occlusion tends to be reduced and the prevalence of group function occlusion is increased. Dentition that is closer to Class II occlusion exhibits mainly canine-guided occlusion, while for Class III occlusion, group function occlusion is more prevalent. The studies revealed no relationship between the lateral occlusion schemes and TMD development.

  20. Epidemiology of animal bites and rabies cases in India. A multicentric study.

    Science.gov (United States)

    Ichhpujani, R L; Mala, Chhabra; Veena, Mittal; Singh, J; Bhardwaj, M; Bhattacharya, D; Pattanaik, S K; Balakrishnan, N; Reddy, A K; Samnpath, G; Gandhi, N; Nagar, S S; Shiv, Lal

    2008-03-01

    Rabies, a disease of antiquity continues to be a major public health problem in India. Multiple factors contribute to high mortality and morbidity due to animal bites. An effective strategy for control of rabies takes into account the epidemiology of animal bites, rabies and factors influencing post exposure treatment. The study was carried out as a part of Agreement for Performance of Work (APW) from World Health Organization (WHO) during the period April 2001 to September 2002. Two sets of proformae were developed and used after field testing to interview cases of animal bites and get retrospective information about rabies cases. The study was carried out at six selected centres across the country viz. Delhi, Hyderabad, Raipur, Jamnagar, Coonoor and Rajahmundry and was co-ordinated by National Institute of Communicable Diseases (NICD), Delhi. The officials engaged in the study work were thoroughly trained in the study methodology before the start of the study itself. To maintain quality and uniformity supervisory checks were done during the survey. A total of 1357 fresh animal bite victims were interviewed (exit interview) from the anti-rabies centres (ARCs). Dog bites caused maximum morbidity (92%). Second most common biting animal was monkey (3.2%), followed by cat (1.8%), fox (0.4%) etc. Most bites (64.3%) were unprovoked bites by stray (64.7%) animals. In this study 72.4% animal bite victims were males and 47.5% were children in age group of 2-18 years. 63% had Category III exposure as per the WHO classification. Before coming to ARCs 58.5% people had washed the wound with water/soap or water alone. Some of the bite victims (10.8%) had also applied chillies, salt, turmeric powder, lime, snuff powder, paste of leaves, acid, ash given by Peer Baba (magician) etc. These practices varied from one region to another. The practice of wound washing at the ARC which is an important component of animal bite management was being practiced at only one of the six centres