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1

Radiologic assessment of diseased mucosa of the maxillary sinus after functional endoscopic sinus surgery.  

UK PubMed Central (United Kingdom)

We attempted to evaluate postoperative mucosal changes and symptomatic improvement in 99 patients who underwent functional endoscopic sinus surgery from September 1991 through August 1992. The patients were divided into 2-, 4-, 6-, and 12-month postoperative groups. Thickness of the maxillary sinus mucosa measured at the midpoint of the lateral sinus wall on a follow-up ostiomeatal unit computed tomogram (OMU CT) was compared with that of preoperative OMU CT. Postoperative endoscopic findings of the maxillary sinus and changes in presenting symptoms such as rhinorrhea, nasal obstruction, facial pain, headache, anosmia, epiphora, and referred otalgia were analyzed. Improvement in the diseased mucosa of the maxillary sinus, as evaluated on OMU CT, was observed in 69.7% of the patients, and such mucosal changes did not differ significantly among 2-, 4-, 6-, and 12-month follow-up groups. However, apparent mucosal changes exceeding marginal improvement was observed in 32.3% of the patients. The overall symptomatic improvement rate was 57.9% and improvement in endoscopic findings was observed in 46.3% of the patients. Although there was some discrepancy between radiologic and symptomatic improvement rates, symptomatic improvement was significantly related with radiologic improvement. It is suggested that removal of obstructive lesion in the ostiomeatal area might be beneficial in a seemingly early symptomatic improvement, but complete healing of the maxillary sinus mucosa as assessed by OMU CT might take longer than 12 months.

Min YG; Lee JW; Shin JS

1994-11-01

2

Cellular regeneration and recovery of the maxillary sinus mucosa. An experimental study in rabbits.  

UK PubMed Central (United Kingdom)

Unilateral maxillary sinusitis was induced in 30 New Zealand White rabbits with Streptococcus pneumoniae or Bacteroides fragilis. In another group of 15 rabbits without infection, the sinus mucosa was surgically removed in defined areas. In both series, the sinuses were serially sectioned for histological analysis of the cellular regenerative capacity. In maxillary sinusitis induced by Bacteroides fragilis, an inflammatory and also reparative process involving all mucosal layers including the underlying periosteum was seen. The more superficial trauma as found in pneumococcal sinusitis eventually led to restitution ad integrum. Following surgical removal, the denuded sinus-lining was reepithelized by a flattened ciliated epithelium on a lamina propria displaying fibrosis and lacking serous glands. The restoration of the rabbit maxillary sinus mucosa after surgical trauma thus leads to structural abnormalities of the epithelium as well as the lamina propria, and these changes are likely to interfere with the normal function of the sinus mucosa.

Norlander T; Forsgren K; Kumlien J; Stierna P; Carlsöö B

1992-01-01

3

Histological evaluation of maxillary sinus mucosa after functional endoscopic sinus surgery.  

UK PubMed Central (United Kingdom)

BACKGROUND: This study was performed to evaluate the histological changes of the maxillary sinus mucosa of patients with chronic rhinosinusitis (CRS) after functional endoscopic sinus surgery (FESS). METHODS: In a cohort study, biopsy specimens were collected from the maxillary sinus of patients submitted for FESS. One year after surgery, patients were clinically reassessed. Patients showing recurrence of disease (group 1) required a revision surgery, through which a second biopsy specimen was collected. Patients showing a favorable clinical response (group 2) were submitted to an outpatient maxillary biopsy through the previous opened middle meatus antrostomy. Biopsy material from four cadavers was used as control. The histological and electron microscope findings were analyzed. RESULTS: At the initial surgery, patients presented many histopathological alterations, such as an inflammatory process infiltrating the submucosa, atypical respiratory epithelium with an important increase in goblet cells, metaplasia, or mixed epithelium. Group 1 patients persisted with the same alterations 1 year later, but ciliary dysmorphy was more accentuated. Group 2 patients presented a predominantly pseudostratified epithelium, but some areas contained an increased number of goblet cells and a reduction in the number of ciliated cells. CONCLUSION: Recovery of the maxillary sinus mucosa of patients with CRS, observed by electron and light microscopy, was incomplete 1 year after endoscopic surgery, even in nonsymptomatic patients; nevertheless, these alterations were more important in symptomatic patients than in asymptomatic patients.

Anselmo-Lima WT; Ferreira MD; Valera FC; Rossato M; de Mello VR; Demarco RC

2007-11-01

4

Avaliação da mucosa sinusal do coelho à presença de implante biodegradável/ Assessing the maxillary sinus mucosa of rabbits in the presence of biodegradable implants  

Scientific Electronic Library Online (English)

Full Text Available Abstract in portuguese Pensando em melhorar a qualidade de vida dos pacientes com doenças do humor vítreo, os oftalmologistas começaram a utilizar recentemente implantes biodegradáveis com corticoide. Estes mesmos implantes podem ser uma alternativa no tratamento da RSC e, para isso, realizamos um estudo experimental em seios maxilares de coelhos. OBJETIVO: Avaliar histologicamente a mucosa de seio maxilar de coelhos após a colocação de implante biodegradável de prednisolona. MÉTODO: D (more) ezoito coelhos foram divididos aleatoriamente em dois grupos: Grupo 1: no seio maxilar esquerdo foi inserido um implante biodegradável com prednisolona; Grupo 2: No seio maxilar esquerdo foi inserido um implante biodegradável sem medicação. Os seios maxilares do lado direito serviram como controle. Após 7, 14 e 28 dias foram escolhidos aleatoriamente três coelhos de cada grupo e a resposta tecidual inflamatória foi avaliada. RESULTADOS: Foi encontrada diferença não significativa de inflamação na mucosa, quando comparamos o grupo de coelhos que receberam implantes com e sem medicação com o grupo controle; ou quando comparamos o grupo que recebeu implante com prednisolona com o grupo que recebeu implante sem medicação. CONCLUSÃO: Não foram observados sinais de toxicidade ou inflamação na mucosa do seio maxilar do coelho à presença do implante com ou sem prednisolona. Abstract in english In an attempt to improve the quality of life of patients with vitreous humor disease, ophthalmologists began offering steroid-eluting biodegradable implants to their patients. These implants can be used as an alternative treatment for CRS and this is why this experimental study was carried out on rabbit maxillary sinuses. OBJECTIVE: This study aims to assess the histology of the mucosa of the maxillary sinuses of rabbits after the placement of a prednisolone-eluting biode (more) gradable implant. METHOD: Eighteen rabbits were randomly divided into two groups: group 1 - subjects had drug-eluting implants placed on their left maxillary sinuses; group 2 - subjects had non-drug-eluting implants placed on their left maxillary sinuses. The right maxillary sinuses served as the controls. After seven, 14, and 28 days three rabbits in each group were randomly picked to have their tissue inflammatory response assessed. RESULTS: Levels of mucosal inflammation were not significantly different between the groups with and without drug-eluting implants and the control group, or when the groups with drug-eluting implants and non-drug-eluting implants were compared. CONCLUSION: Signs of toxicity or mucosal inflammation were not observed in the maxillary sinuses of rabbits given prednisolone-eluting implants or non-drug-eluting implants.

Perez, André Coura; Cunha Junior, Armando da Silva; Fialho, Sílvia Ligório; Silva, Lívia Mara; Dorgam, João Vicente; Murashima, Adriana de Andrade Batista; Silva, Alfredo Ribeiro; Rossato, Maria; Anselmo-Lima, Wilma Terezinha

2012-12-01

5

Avaliação da mucosa sinusal do coelho à presença de implante biodegradável Assessing the maxillary sinus mucosa of rabbits in the presence of biodegradable implants  

Directory of Open Access Journals (Sweden)

Full Text Available Pensando em melhorar a qualidade de vida dos pacientes com doenças do humor vítreo, os oftalmologistas começaram a utilizar recentemente implantes biodegradáveis com corticoide. Estes mesmos implantes podem ser uma alternativa no tratamento da RSC e, para isso, realizamos um estudo experimental em seios maxilares de coelhos. OBJETIVO: Avaliar histologicamente a mucosa de seio maxilar de coelhos após a colocação de implante biodegradável de prednisolona. MÉTODO: Dezoito coelhos foram divididos aleatoriamente em dois grupos: Grupo 1: no seio maxilar esquerdo foi inserido um implante biodegradável com prednisolona; Grupo 2: No seio maxilar esquerdo foi inserido um implante biodegradável sem medicação. Os seios maxilares do lado direito serviram como controle. Após 7, 14 e 28 dias foram escolhidos aleatoriamente três coelhos de cada grupo e a resposta tecidual inflamatória foi avaliada. RESULTADOS: Foi encontrada diferença não significativa de inflamação na mucosa, quando comparamos o grupo de coelhos que receberam implantes com e sem medicação com o grupo controle; ou quando comparamos o grupo que recebeu implante com prednisolona com o grupo que recebeu implante sem medicação. CONCLUSÃO: Não foram observados sinais de toxicidade ou inflamação na mucosa do seio maxilar do coelho à presença do implante com ou sem prednisolona.In an attempt to improve the quality of life of patients with vitreous humor disease, ophthalmologists began offering steroid-eluting biodegradable implants to their patients. These implants can be used as an alternative treatment for CRS and this is why this experimental study was carried out on rabbit maxillary sinuses. OBJECTIVE: This study aims to assess the histology of the mucosa of the maxillary sinuses of rabbits after the placement of a prednisolone-eluting biodegradable implant. METHOD: Eighteen rabbits were randomly divided into two groups: group 1 - subjects had drug-eluting implants placed on their left maxillary sinuses; group 2 - subjects had non-drug-eluting implants placed on their left maxillary sinuses. The right maxillary sinuses served as the controls. After seven, 14, and 28 days three rabbits in each group were randomly picked to have their tissue inflammatory response assessed. RESULTS: Levels of mucosal inflammation were not significantly different between the groups with and without drug-eluting implants and the control group, or when the groups with drug-eluting implants and non-drug-eluting implants were compared. CONCLUSION: Signs of toxicity or mucosal inflammation were not observed in the maxillary sinuses of rabbits given prednisolone-eluting implants or non-drug-eluting implants.

André Coura Perez; Armando da Silva Cunha Junior; Sílvia Ligório Fialho; Lívia Mara Silva; João Vicente Dorgam; Adriana de Andrade Batista Murashima; Alfredo Ribeiro Silva; Maria Rossato; Wilma Terezinha Anselmo-Lima

2012-01-01

6

[Maxillary sinus hypoplasia].  

Science.gov (United States)

Maxillary sinus hypoplasia is rare, with an estimated prevalence of 1-5%. Out of the CT scans performed in sinusal patients between March 1998 and June 1999, we report on 4 isolated maxillary sinus hypoplasia, 4 maxillary sinus hypoplasia associated to concha bullosa, and 10 isolated conchae bullosas. All cases were evaluated by nasosinusal endoscopy and CT scan. Size, location and uni/bilateral presentation of concha bullosa is correlated to maxillary sinus hypoplasia presence, specially with regards to uncinate process presence, medial or lateral retraction. The pathogenesis of maxillary sinus hypoplasia is reviewed, and its relation to concha bullosa, evaluating how this could explain some cases of the so called chronic maxillary sinus atelectasia, as an acquired and progressive variant of maxillary sinus hypoplasia in adults. PMID:11428268

Plaza, G; Ferrando, J; Martel, J; Toledano, A; de los Santos, G

2001-03-01

7

[Maxillary sinus hypoplasia  

UK PubMed Central (United Kingdom)

Maxillary sinus hypoplasia is rare, with an estimated prevalence of 1-5%. Out of the CT scans performed in sinusal patients between March 1998 and June 1999, we report on 4 isolated maxillary sinus hypoplasia, 4 maxillary sinus hypoplasia associated to concha bullosa, and 10 isolated conchae bullosas. All cases were evaluated by nasosinusal endoscopy and CT scan. Size, location and uni/bilateral presentation of concha bullosa is correlated to maxillary sinus hypoplasia presence, specially with regards to uncinate process presence, medial or lateral retraction. The pathogenesis of maxillary sinus hypoplasia is reviewed, and its relation to concha bullosa, evaluating how this could explain some cases of the so called chronic maxillary sinus atelectasia, as an acquired and progressive variant of maxillary sinus hypoplasia in adults.

Plaza G; Ferrando J; Martel J; Toledano A; de los Santos G

2001-03-01

8

Maxillary sinus haematoma  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The maxillary sinus haematoma is an uncommon cause of a maxillary sinus mass. It presents with a variety of symptoms, the most common being epistaxis. Although histologically benign, it may be clinically progressive. Radiological findings can range from a benign appearance to a more aggressive proce...

Lim, M; Lew-Gor, S; Beale, T; Ramsay, A; Lund, VJ

9

Maxillary sinus vascularization: a cadaveric study.  

UK PubMed Central (United Kingdom)

The goal of this study was the investigation of the arterial blood supply to the maxillary sinus to give clinicians the basis for a better understanding of the origin of vascular complications that can derive from surgical procedures at this level. The study consisted of 30 sinuses from 15 human cadavers with an age range of 59 to 90 years. To define the complex vascularization of the maxillary sinus, the afferent vascular network was injected with liquid latex mixed with red india ink through the external carotid arteries. An intraosseous anastomosis between the dental branch of the posterior superior alveolar artery, also known as alveolar antral artery, and the infraorbital artery was found in 100% of cases. Such an anastomosis seemed to guarantee the blood supply to the sinus membrane, to the periosteal tissues, and especially to the anterior lateral wall of the sinus. Moreover, the gingival branch of the posterior superior alveolar artery was found to anastomose an extraosseous branch of the infraorbital artery in 10 sinuses. The examination of the maxillary sinus also showed a close anatomic relationship among the sinus posterior wall, the descending palatine artery, and the sphenopalatine artery in all 30 sinuses. Small branches deriving from the posterior lateral nasal arteries have been found to perforate the nasal wall laterally and reach the mucosa of the maxillary sinus. A sound knowledge of the maxillary sinus vascularization is essential to prevent vascular complications during surgical operations involving this region.

Rosano G; Taschieri S; Gaudy JF; Del Fabbro M

2009-05-01

10

Pathologic changes in the maxillary sinus wall after conservative therapy in odontogenic maxillary sinusitis. Examination using bone scintigraphy  

International Nuclear Information System (INIS)

Single photon emission computed tomographic bone scintigraphy (bone SPECT) was performed in 16 patients with odontogenic maxillary sinusitis to compare inflammatory changes in the maxillary sinus wall including the alveolar process (bony lesions) before and after conservative therapy. Morphologic changes in bony lesions as evaluated by bone SPECT images correlated with those of the maxillary sinus mucosa (mucosal lesions) as evaluated by CT images. Morphologic changes in the bony lesions also correlated with changes in inflammatory activity in the maxillary alveolar process as functionally evaluated by bone SPECT before and after conservative therapy. Odontogenic maxillary sinusitis is considered a disease in which maxillary alveolitis causes mucosal lesions as well as bony lesions. Changes in alveolitis are associated with morphologic changes in bony lesions after conservative therapy, and these changes affect the pathophysiologic nature of odontogenic maxillary sinusitis. Bone SPECT is valuable for predicting outcome and treatment planning in patients with odontogenic maxillary sinusitis. (author)

2003-01-01

11

Enhanced podoplanin expression in chronic maxillary sinusitis.  

Science.gov (United States)

Podoplanin expression has been reported in oral squamous epithelium, myoepithelia of the salivary glands, and odontogenic lesions, and has been linked with inflammatory and neoplastic conditions. We hypothesized that inflamed respiratory mucosa of the maxillary sinus also express podoplanin, especially in cases with odontogenic sinusitis. We retrospectively investigated podoplanin expression in biopsies from maxillary sinus with inflammatory changes. Cases with chronic rhinosinusitis with polyp formation (n=5), chronic rhinosinusitis without polyps (n=5), chronic rhinosinusitis with eosinophilia (n=5), and odontogenic chronic rhinosinusitis (n=5) were investigated immunohistochemically using an established antibody for podoplanin (D2-40). Respiratory epithelium in chronic maxillary sinusitis with polyp formation did not exhibit enhanced podoplanin expression. However, D2-40 positivity was detected in the basal cells in all cases with chronic sinusitis associated with inflammatory infiltrations as well as in the parabasal epithelial layer in chronic sinusitis without polyp formation. We observed podoplanin expression in non-neoplastic maxillary sinus epithelium exhibiting inflammatory changes. We suggest that podoplanin is involved in the pathogenesis of chronic rhinosinusitis, particularly in the intraepithelial migration of inflammatory infiltrates. PMID:23812230

Zustin, Jozef; Scheuer, Hanna A; Knecht, Rainald; Friedrich, Reinhard E

12

Enhanced podoplanin expression in chronic maxillary sinusitis.  

UK PubMed Central (United Kingdom)

Podoplanin expression has been reported in oral squamous epithelium, myoepithelia of the salivary glands, and odontogenic lesions, and has been linked with inflammatory and neoplastic conditions. We hypothesized that inflamed respiratory mucosa of the maxillary sinus also express podoplanin, especially in cases with odontogenic sinusitis. We retrospectively investigated podoplanin expression in biopsies from maxillary sinus with inflammatory changes. Cases with chronic rhinosinusitis with polyp formation (n=5), chronic rhinosinusitis without polyps (n=5), chronic rhinosinusitis with eosinophilia (n=5), and odontogenic chronic rhinosinusitis (n=5) were investigated immunohistochemically using an established antibody for podoplanin (D2-40). Respiratory epithelium in chronic maxillary sinusitis with polyp formation did not exhibit enhanced podoplanin expression. However, D2-40 positivity was detected in the basal cells in all cases with chronic sinusitis associated with inflammatory infiltrations as well as in the parabasal epithelial layer in chronic sinusitis without polyp formation. We observed podoplanin expression in non-neoplastic maxillary sinus epithelium exhibiting inflammatory changes. We suggest that podoplanin is involved in the pathogenesis of chronic rhinosinusitis, particularly in the intraepithelial migration of inflammatory infiltrates.

Zustin J; Scheuer HA; Knecht R; Friedrich RE

2013-07-01

13

Maxillary Sinus mucormycosis mimicking sinus malignancy  

International Nuclear Information System (INIS)

Mucormycosis is an opportunistic fulminant fungal infection in diabetic and immunocompromised patients. The infection is acquired in the nose and paranasal sinuses by the inhalation of the fungal spores. We report of a case of maxillary sinus mucormycosis in a 32-years-old non diabetic woman. She had right side facial pain, headache, unilateral right side nasal obstruction, and post nasal discharge (PND) for five years. Nasal endoscopy revealed pus and granulation tissue, and semi-black middle turbinate in right side nasal cavity. Computed tomography showed bone erosion and a large soft tissue mass similar to sinus carcinoma in maxillary sinus with extension into the ethmoidal sinus. She underwent functional Endoscopic sinus surgery. Macroscopically, the specimen consisted of multiple tissue fragment 0.8-1 cm. Microscopic findings included an inflammatory cells and deposited fungal elements (mucormycosis). So in the paranasal sinus and nasal cavity mass, mucormycosis should be included in the differential diagnosis, especially in the non diabetic and young patients. (author)

2010-01-01

14

[The relationship between three-dimensional morphology of maxillary sinus and maxillary sinusitis].  

UK PubMed Central (United Kingdom)

OBJECTIVE: A three-dimensional morphology of the maxillary sinus was reconstructed. We studied the relationship between sinusitis and three-dimensional morphology, volume as well as gasification coefficients. METHOD: One hundred and fifty adult subjects were selected in this study, and divided into three groups: normal bilateral maxillary sinus, unilateral maxillary sinusitis and bilateral maxillary sinusitis, with fifty cases in each group. Use Siemens helix CT for sequential scanning of the nasal-sinus. After scanning, the DICOM data was recorded in DVD-R and transferred into another computer for reconstruction and measurement. RESULT: The volume of the normal maxillary sinus group was (15 018.64 +/- 473.36) mm3. The volume of the maxillary sinusitis group was (14 971.86 +/- 360.93)mm3. There was no significant difference between the values of volumes for the normal maxillary sinus group and maxillary sinusitis group. The gasification coefficient was 0.345 +/- 0.071 for the normal maxillary sinus group, 0.252 +/- 0.057 for the maxillary sinusitis group. There was significant difference between the two groups. CONCLUSION: Maxillary sinus reconstruction permits more vivid visualization of the three-dimensional structure and three-dimensional shape of the maxillary sinus. The occurrence of the maxillary sinusitis is closely related to the three-dimensional shape of the maxillary sinus and the gasification coefficient measured. The more regular the three-dimensional shape of the maxillary sinus, with the gasification coefficient >0.300, the lower the probability of the maxillary sinusitis. Otherwise, the probability increases. Adult inflammation of maxillary sinus may be originated from a relatively larger volume of maxillary sinus in childhood and adolescence.

Shang H; Ruan B; Li S; Zhao X

2012-10-01

15

The effect of nasal septal deviation on maxillary sinus volumes and development of maxillary sinusitis.  

UK PubMed Central (United Kingdom)

OBJECTIVES: The purpose of this study was to determine the possible role of nasal septal deviation on volume of maxillary sinuses and its relationship with development of maxillary sinusitis. MATERIALS AND METHODS: Between May 2010 and September 2012, paranasal sinus computed tomography (CT) findings of 825 patients (470 males, 355 females), who admitted to Ear Nose and Throat Department of Bozok University Medical Faculty were retrospectively analyzed. By excluding the other co-existent sino nasal pathologies, 109 consecutive patients (47 males, 62 females mean age 36 ± 13.4 years; range 18-71 years) with isolated nasal septal deviations were recruited for the study. The convex side of the septal curvature was accepted as the direction of deviation. The findings were grouped according to the radiologically measured angle of nasal septal deviations. The deviation angle of the nasal septum was described as; mild (<9°), moderate (the angle between 9° and 15°), or severe (15° and up). The volume of each maxillary sinus (ipsi- and contralateral to the deviation side) was also calculated using the computer program. Sinusitis was defined as any evident thickening of the maxillary sinus mucosa. RESULTS: There were 62 females and 47 males with a mean age of 36 ± 13.4. Nasal septal deviation angles were found to range between 5° and 27.2° (mean 13° ± 3.4°). The right sided deviations included 19 mild (<9°, Group I), 16 moderate (9°-15°, Group II), and 16 severe (15° and up, Group III) cases. The left sided deviations included 19 mild (<9°, Group I), 19 moderate (9°-15°, Group II), and 20 severe (15° and up, Group III) subjects. Maxillary sinus volumes were compared between right and left sided deviation groups. We could not demonstrate a statistically significant difference between the right maxillary sinus volumes of Groups I and II in left sided deviation cases (p = 0.77). In the same side, comparison of Groups I-III and Groups II-III, the maxillary sinus volume differences were found to be significantly meaningful (p = 0.001 and p = 0.013, respectively). Identical results were yielded in the right sided septal deviation group related to the maxillary sinus volumes of Groups I and II and Groups I-III and Groups II-III compartments (p = 0.99, p = 0.004 and p = 0.003, respectively). In both right and left deviation groups, ipsi and contralateral maxillary sinus volume comparements produced statistically significant results (p = 0.002 and p = 0.04, respectively). The presence of maxillary sinusitis findings were significantly increased in both group (p = 0.00). Statistical significance was set at p < 0.05. CONCLUSION: Our findings suggest that maxillary sinus volumes tend to be higher at the contralateral side of the severe septum deviations. In addition, the chance of finding maxillary sinusitis findings on ipsilateral to the severe septum deviation was significantly increased.

Kapusuz Gencer Z; Ozk?r?? M; Okur A; Karaçavu? S; Saydam L

2013-03-01

16

Mucocoele of the maxillary sinus  

Directory of Open Access Journals (Sweden)

Full Text Available Background. Mucocoele is histopathologically benign, cystic change of paranasal sinuses filled with mucoid contents, which with its growth is pressuring and destroying local bone walls. In only 3% of the cases it can be localized in maxillary sinuses. Etiology is unknown. Pyocoele develops by secondary infection. Case report. The male patient was 21 years old. His symptoms were runny nose with thick contents and heavy breathing on the right side of the nose, headaches, as well as the swelling of the right cheek. During clinical examination, the expansive change was found. It was completely closing the right side of the nose cavity. Computerized tomography (CT) of paranasal cavities showed excessive expansion of the right maxillary sinus, with very thinned walls, while the cavity was filled with liquid. After antibiotics therapy, the radical operation of the right maxillary sinus was performed, based on Caldwell Luc method. The frontal wall was found to be extremely convex and thinned, while the medial wall was with dehiscention. The cystic change was extirpated. Mucocoele was proved by pathohistologic findings. Its wall was about 2 mm thick and it showed squamous metaplasia in the large part of the mucocoela epithel. In the submucosa fibrosis and inflammatory infiltrate was present. Postoperative follow-up was under control. Clinically and radiographycaly, six months after therapy, the patient does not have troubles. Conclusion. The rare localization of the mucocoeles in maxillary sinus can be explained with the width of the maxillary ostia. Infected mucocoeles, expanded to the local anatomical structures, should be operated on with classic radical surgical operation. .

Peri? Aleksandar; Baleti? Nenad; Vukomanovi?-?ur?evi? Biserka; Jovi? Milena; Kozomara Ružica

2007-01-01

17

Mucormycosis of maxillary sinus  

Directory of Open Access Journals (Sweden)

Full Text Available Mucormycosis is a fungal infection commonly affecting structures in the head and neck, such as air sinuses orbits and the brain. Common predisposing factors include diabetes and immunosuppression. One such case of mucormycosis associated with diabetes mellitus reported to Subharati Dental College, Meerut.

Aggarwal Pooja; Saxena Susmita; Bansal Vishal

2007-01-01

18

Mucormycosis of maxillary sinus  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Mucormycosis is a fungal infection commonly affecting structures in the head and neck, such as air sinuses orbits and the brain. Common predisposing factors include diabetes and immunosuppression. One such case of mucormycosis associated with diabetes mellitus reported to Subharati Dental College, M...

Aggarwal Pooja; Saxena Susmita; Bansal Vishal

19

Extramedullary plasmacytoma of maxillary sinus.  

UK PubMed Central (United Kingdom)

Solitary extramedullary plasmacytomas are rare tumors that often affect the head and neck region. Diagnosis of solitary extramedullary plasmocytoma can be confirmed only when the presence of systemic disease is excluded by performing clinical, biological, and radiological investigations. Radiotherapy is considered the treatment of choice, surgery being limited to biopsy and to excision of residual disease. We report herein the case of a 62-year-old man with an extramedullary plasmacytoma arising in the left maxillary sinus who was referred for chemoradiotherapy.

Erdogan BA; Sekercan O; Dursun N; Tatar G; Bora F

2013-01-01

20

Maxillary sinus textiloma: a case report  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Introduction Textilomas have been reported in many locations. We report the first case of textiloma located in the maxillary sinus that mimicked a sinus cyst recurrence on computed tomography images. Case presentation A 60-year-old Caucasian man was referred for persistent infection of the right maxillary sinus. A maxillary sinus benign cyst had been removed three months before. Computed tomography showed a sinus opacity evoking a cyst recurrence. A new operation was planned to remove the cyst by a Caldwell-Luc approach. After excision of very thick fibrous tissue, a compress was discovered in the maxillary sinus. The patient did not present with any sinus infection after the operation. Conclusion The surgeon should always take into account the possibility of textilomas in a patient with a history of sinus surgery.

Pons Yoann; Schouman Thomas

2010-01-01

 
 
 
 
21

Extramedullary plasmacytoma of maxillary sinus.  

Science.gov (United States)

Solitary extramedullary plasmacytomas are rare tumors that often affect the head and neck region. Diagnosis of solitary extramedullary plasmocytoma can be confirmed only when the presence of systemic disease is excluded by performing clinical, biological, and radiological investigations. Radiotherapy is considered the treatment of choice, surgery being limited to biopsy and to excision of residual disease. We report herein the case of a 62-year-old man with an extramedullary plasmacytoma arising in the left maxillary sinus who was referred for chemoradiotherapy. PMID:23348350

Erdogan, Banu Atalay; Sekercan, Ozgur; Dursun, Nevra; Tatar, Gamze; Bora, Fatih

2013-01-01

22

Fibrosarcoma of the maxillary sinus.  

Science.gov (United States)

Fibrosarcoma arising in the sinonasal cavities are very rare. By the time of clinical diagnosis, they are usually advanced. Lack of adequate surgical margins predisposes these patients to tumor recurrences. Most common sites are the extremities, with only one percent of fibrosarcoma arising in the head and neck area. The imaging features of these tumors reflect their aggressive behavior. We report the case of a maxillary sinus fibrosarcoma in a 16 year-old male patient. Neoadjuvant chemotherapy, medial maxillectomy, adjuvant chemotherapy and subsequent external irradiation was perfomed. PMID:23120255

Mansouri, Hamid; Rzin, Mohamed; Marjani, Mohamed; Sifat, Hassan; Hadadi, Khalid; Hassouni, Khalid; Jidal, Bouchaib; El Gueddari, Brahim

2006-01-01

23

Fibrosarcoma of the maxillary sinus.  

UK PubMed Central (United Kingdom)

Fibrosarcoma arising in the sinonasal cavities are very rare. By the time of clinical diagnosis, they are usually advanced. Lack of adequate surgical margins predisposes these patients to tumor recurrences. Most common sites are the extremities, with only one percent of fibrosarcoma arising in the head and neck area. The imaging features of these tumors reflect their aggressive behavior. We report the case of a maxillary sinus fibrosarcoma in a 16 year-old male patient. Neoadjuvant chemotherapy, medial maxillectomy, adjuvant chemotherapy and subsequent external irradiation was perfomed.

Mansouri H; Rzin M; Marjani M; Sifat H; Hadadi K; Hassouni K; Jidal B; El Gueddari B

2006-01-01

24

Concomitant inverted papilloma and fungus ball in unilateral maxillary sinus.  

UK PubMed Central (United Kingdom)

PROBLEM: The concomitant appearance of an inverted papilloma and a fungus ball in unilateral maxillary sinus is rare. These disease entities may be difficult to distinguish before surgery. METHODOLOGY: A male patient presented with the characteristic symptoms of chronic rhinosinusitis. A preoperative sinus computed tomography scan revealed unilateral sinus opacification, hyperdense calcified spots, and bony erosion of the medial maxillary sinus wall. RESULTS: During the operation, a cheesy, clay-like fungus ball was removed. In addition, a papillary appearance of the sinus mucosa led to the suspicion of inverted papilloma behind the fungus ball and nasal polyps. The histopathology showed an inverted papilloma concomitant with a fungal ball and some inflammatory polyps. CONCLUSION: In addition to preoperative imaging, one should be aware of the potential etiology; careful intraoperative reevaluation is imperative for clinicians to avoid misdiagnosis and to provide adequate management of the underlying disease.

Hsin LJ; Yang SW

2013-01-01

25

[Changes in the maxillary sinus wall after the Caldwell-Luc intervention. An experimental study].  

Science.gov (United States)

Inferior nasoantral windows, with and without radical surgical removal of the maxillary sinus mucosa, were studied in ten New Zealand white rabbits. Surgical removal of the mucosa and the Caldwell-Luc operation were performed. After three months, the sinus cavity was smaller, the medial wall was retracted and the inner curtain was disturbed, and small antrostomies had closed. PMID:9376137

Melgarejo Moreno, P J; Hellín Meseguer, D; Alpay, F

1997-05-01

26

[Changes in the maxillary sinus wall after the Caldwell-Luc intervention. An experimental study  

UK PubMed Central (United Kingdom)

Inferior nasoantral windows, with and without radical surgical removal of the maxillary sinus mucosa, were studied in ten New Zealand white rabbits. Surgical removal of the mucosa and the Caldwell-Luc operation were performed. After three months, the sinus cavity was smaller, the medial wall was retracted and the inner curtain was disturbed, and small antrostomies had closed.

Melgarejo Moreno PJ; Hellín Meseguer D; Alpay F

1997-05-01

27

Benign Fibrous Histiocytoma of the Maxillary Sinus  

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Fibrous Histiocytoma is an uncommon neoplasm of the Head and Neck region and quite rare in the paranasal sinuses. We are reporting a case of Benign Fibrous Histiocytoma in the Maxillary sinus from the Department of Otorhinolaryngology of Bolani Hospital, Bolani with a description of clinical and his...

Singh, Mangal

28

[Ectopic molar tooth in the maxillary sinus].  

Science.gov (United States)

The development of intranasal ectopic teeth is rare. Although they are more commonly seen in the palate and maxillary sinus, they can also be found in the mandibular condyle, coronoid process, and nasal cavity. A 30-year-old male patient presented with a complaint of headache. Computed tomography of the paranasal sinuses showed a bony mass in the right maxillary sinus wall, 1 cm in size. He did not have any history of maxillofacial trauma or operation. The mass was removed via a Caldwell-Luc procedure. It looked like a tooth. Histopathologic diagnosis was made as ectopic molar tooth. The patient was asymptomatic two weeks after the operation. PMID:18187979

Altun, Hüseyin; Teker, Ay?enur Meriç; Ceran, Murat; Gedikli, Orhan

2007-01-01

29

[Analysis on therapeutic efficacy of different approaches for treating fungal maxillary sinusitis].  

UK PubMed Central (United Kingdom)

OBJECTIVE: To compare the response of simple endoscopic surgery and endoscopic surgery plus small windows through canine fossa surgery for fungal maxillary sinusitis. METHOD: Twenty-five patients were applied the endoscopic surgery plus small windows through Canine fossa surgery as the treatment group, and the other 25 were applied the simple endoscopic surgery as control. RESULT: During a follow up for 1-2 years, the effect of fungal maxillary sinusitis under endoscopic by dual approach is superior to simple endoscopic. There were obvious differences between the two groups(chi2 = 4.268, P < 0.05). CONCLUSION: Endoscopic surgery plus small windows through canine fossa surgery for fungal maxillary sinusitis can fully expose maxillary sinus cavity,destroy the abnormal tissues completely, change the low oxygen environment, ensure the normal physiological function of maxillary sinus mucosa, and really achieve radical minimally invasive purpose.

Wei Y; Zhao Y; Zhang S; Zhang Y; Cheng H

2013-01-01

30

Incidentally detected asymptomatic metal foreign bodies (two nails) in shoemaker's maxillary sinus.  

UK PubMed Central (United Kingdom)

The diagnosis metal foreign bodies of maxillary sinus cannot be usually made in an acute setting and patients may present with chronic symptoms due to drainage and chronic irritation of the mucosa years later. Metal foreign bodies can be generally displaced to the maxillary sinus at the time of dental intervention. In this article, we report a very interesting case of 23-year-old male shoemaker with two metal foreign bodies (nails) which were non-related with any surgical intervention or trauma and found incidentally in the right maxillary sinus.

Enöz M; Selvi F; Inançl? HM; Kat?rc?o?lu OS; Acar M

2012-09-01

31

Otolaryngologists' perceptions of odontogenic maxillary sinusitis.  

UK PubMed Central (United Kingdom)

OBJECTIVES/HYPOTHESIS: Odontogenic maxillary sinusitis (OMS) is a common cause of chronic rhinosinusitis (CRS); however, the condition is infrequently mentioned in recent rhinosinusitis guidelines and often overlooked as a cause of sinusitis by otolaryngologists, dentists, and radiologists. The goal of this survey is to assess otolaryngologists' perceptions of the incidence, diagnosis, and treatment of OMS. STUDY DESIGN: Physician survey. METHODS: Ninety-three board certified otolaryngologists in the United States completed a 17-question survey on etiologies of CRS, which also included questions on alternative diagnoses and radiologic findings to reduce respondent bias toward the survey's focus on odontogenic sinusitis. Results were compared between self-reported general otolaryngologists and rhinologists. RESULTS: Both groups recognized an odontogenic source as a common cause of maxillary sinusitis and reported treating an average of 2.9 patients per year with OMS who were initially misdiagnosed. Most otolaryngologists surveyed perceived radiologists to never or rarely report on dental pathology in their sinus computed tomography (CT) interpretation. CONCLUSIONS: Both general otolaryngologists and rhinologists recognize odontogenic sinusitis is common, although often initially misdiagnosed. With increasing awareness of OMS, we believe that otolaryngologists and radiologists will review sinus CT scans for the presence of periapical abscesses and dental pathology. The otolaryngologist should suspect an odontogenic etiology of purulent maxillary CRS in patients failing to improve with antibiotics, regardless of a negative dental workup.

Longhini AB; Branstetter BF; Ferguson BJ

2012-09-01

32

[Diagnosis of postoperative changes in the frontal and maxillary sinuses  

UK PubMed Central (United Kingdom)

The paper specifies x-ray picture of surgically treated frontal and maxillary sinuses in uneventful healing without inflammation relapses (30 cases), in relapse of purulent (21 sinuses), purulent-polypous (15 sinuses), polypous (4 sinuses) sinusitis, in pain syndrome in the region of the operated on maxillary sinus projection (7 patients). X-ray symptoms of postoperative changes in the sinuses, varying in clinical course, are characterized.

Pluzhnikov MS; Kossovo? AL; Merkulov VG; Riabova MA; Kalenov VE; Nikolaev GG

1992-05-01

33

Endoscopic middle meatal antrostomy in treatment of maxillary sinus mucoceles  

Directory of Open Access Journals (Sweden)

Full Text Available Background/Aim. Mucocele of a paranasal sinus is a benign non-neoplastic condition characterized by cystic expansion and distension of the sinus cavity by retained mucoid secretions. Etiology is unknown. The purpose of this study was to estimate the efficiency of the endoscopic middle meatal antrostomy (MMA) as a treatment modality in patients with maxillary sinus mucoceles. Methods. This retrospective study involved 11 patients with maxillary sinus mucoceles/pyoceles treated endoscopically in the Clinic for Otorhinolaryngology of Military Medical Academy, Belgrade over a 3-year period (2005-2007). The presented symptoms and signs, radiological and pathohistological findings and surgical treatment were reviewed. Results. There were four females and seven males, age 22 to 65 years (mean 33 years). Two patients were with allergic rhinitis. All the patients complained of nasal obstruction, ten had facial pain, seven had nasal discharge, five had cheek pressure, and four had epiphora, and four had headaches. On endoscopic nasal examination, the medial wall of the maxillary sinus was bulging in ten patients. Purulent drainage was seen in eight patients, septal deviation in ten, and polyps were found in two of the patients. The MMA and marsupialization of the mucocele were performed in all the patients. On histopathological examination, the mucocele wall showed a lining composed of respiratory epithelium. Postoperative follow-up ranged between 8 and 44 months (in six patients, it ranged from 24 to 44 months). No patients required revision surgery. Conclusion. The MMA with mucocele marsupialization abolishes middle meatal obstruction and establishes better drainage and ventilation of the maxillary sinus and restitution of its mucosa.

Peri? Aleksandar; Milojevi? Milanko; Ljubi?i? Aleksandar; Sotirovi? Jelena

2009-01-01

34

Bilateral maxillary sinus hypoplasia and aplasia: radiological and clinical findings.  

Science.gov (United States)

Maxillary sinus hypoplasia (MSH) is classified into three types depending upon embryological development of the sinus and uncinate process. Type III MSH is characterized by a near-absence of the uncinate process and an almost absent cleft-like sinus. Bilateral maxillary sinus aplasia or severe hypoplasia with associated paranasal sinus abnormalities is extremely rare. Two cases with severe maxillary sinus hypoplasia/aplasia (one of them with other associated paranasal sinus abnormalities) are presented in this article. This extremely rare abnormality should be kept in mind to prevent misdiagnosis and possible complications during endoscopic sinus surgery. PMID:17881601

Tasar, M; Cankal, F; Bozlar, U; Hidir, Y; Saglam, M; Ors, F

2007-10-01

35

The effect of nasal septal deviation on maxillary sinus volumes and development of maxillary sinusitis.  

Science.gov (United States)

OBJECTIVES: The purpose of this study was to determine the possible role of nasal septal deviation on volume of maxillary sinuses and its relationship with development of maxillary sinusitis. MATERIALS AND METHODS: Between May 2010 and September 2012, paranasal sinus computed tomography (CT) findings of 825 patients (470 males, 355 females), who admitted to Ear Nose and Throat Department of Bozok University Medical Faculty were retrospectively analyzed. By excluding the other co-existent sino nasal pathologies, 109 consecutive patients (47 males, 62 females mean age 36 ± 13.4 years; range 18-71 years) with isolated nasal septal deviations were recruited for the study. The convex side of the septal curvature was accepted as the direction of deviation. The findings were grouped according to the radiologically measured angle of nasal septal deviations. The deviation angle of the nasal septum was described as; mild (Nasal septal deviation angles were found to range between 5° and 27.2° (mean 13° ± 3.4°). The right sided deviations included 19 mild (<9°, Group I), 16 moderate (9°-15°, Group II), and 16 severe (15° and up, Group III) cases. The left sided deviations included 19 mild (<9°, Group I), 19 moderate (9°-15°, Group II), and 20 severe (15° and up, Group III) subjects. Maxillary sinus volumes were compared between right and left sided deviation groups. We could not demonstrate a statistically significant difference between the right maxillary sinus volumes of Groups I and II in left sided deviation cases (p = 0.77). In the same side, comparison of Groups I-III and Groups II-III, the maxillary sinus volume differences were found to be significantly meaningful (p = 0.001 and p = 0.013, respectively). Identical results were yielded in the right sided septal deviation group related to the maxillary sinus volumes of Groups I and II and Groups I-III and Groups II-III compartments (p = 0.99, p = 0.004 and p = 0.003, respectively). In both right and left deviation groups, ipsi and contralateral maxillary sinus volume comparements produced statistically significant results (p = 0.002 and p = 0.04, respectively). The presence of maxillary sinusitis findings were significantly increased in both group (p = 0.00). Statistical significance was set at p < 0.05. CONCLUSION: Our findings suggest that maxillary sinus volumes tend to be higher at the contralateral side of the severe septum deviations. In addition, the chance of finding maxillary sinusitis findings on ipsilateral to the severe septum deviation was significantly increased. PMID:23512432

Kapusuz Gencer, Zeliha; Ozk?r??, Mahmut; Okur, Aylin; Karaçavu?, Seyhan; Saydam, Levent

2013-03-20

36

Aggressive fibrous dysplasia of the maxillary sinus.  

Science.gov (United States)

Fibrous dysplasia is usually a slowly progressive, benign disease that develops over several years and presents with deformity or mild symptomatology. Five of 34 patients (ages 4-21 years), who were subsequently diagnosed histologically as having fibrous dysplasia of the maxillary sinus, rapidly developed soft tissue masses of the malar region over a period of less than 4 months with accompanying pain (2 patients) and nasal obstruction and exophthalmos (2 patients). Each was clinically suspected of having a sarcoma; two had been thought to have an "osteofibrosarcoma" on initial biopsy at outside hospitals. After resection, all lesions developed regrowth. At histopathologic examination, both initial and recurrent masses proved to be typical fibrous dysplasia with spicules of woven bone in cellular, sometimes vascular, fibrous tissue. No malignant degeneration was found. On conventional radiography, aggressive fibrous dysplasia produced opacification and expansion of the maxillary sinus and apparent disruption of its wall with an associated soft tissue mass. Computed tomography (CT) demonstrated voluminous heterogeneous masses with "ground glass appearance", calcifications, areas of enhancement, low attenuation, cystic areas, and a thinned, sometimes interrupted, maxillary wall. Despite the aggressive clinical course for both initial and recurrent lesions, the CT findings of a "ground glass" mass with calcifications surrounded by a maxillary sinus wall, even if incomplete, can suggest the diagnosis of aggressive fibrous dysplasia. PMID:8291007

Shapeero, L G; Vanel, D; Ackerman, L V; Terrier-Lacombe, M J; Housin, D; Schwaab, G; Sigal, R; Masselot, J

1993-11-01

37

[Ameloblastoma of the maxillary sinus--a case report].  

Science.gov (United States)

Ameloblastoma (adamantinoma) is a benign neoplasm deriving from the enamel organ. Its etiology has not been ultimately determined. It constitutes about 1% of all head and neck tumours, and about 11% of teeth-originating tumours. Usually it occurs in the mandible near premolar and molar teeth, more rarely in its anterior part. About 20% of described cases of ameloblastoma relate to the jaw, its very rare location is gingiva or cheak tunica mucosa. The essay presents a case of ameloblastoma of a maxillary sinus in a 65-year-old man. The diagnostic and treatment algorithm in ameloblastoma is discussed. PMID:19205533

?apienis, Magdalena; Kaczmarczyk, Dariusz; Zimmer-Nowicka, Joanna; Nied?wiecka, Izabela; Jesionek-Kupnicka, Dorota; Morawiec-Bajda, Alina

2008-01-01

38

Cluster headache associated with acute maxillary sinusitis.  

UK PubMed Central (United Kingdom)

BACKGROUND: Cluster headache is a primary headache by definition not caused by any known underlying structural pathology. However, symptomatic cases have been described, for example tumours, particularly pituitary adenomas, malformations, and infections/inflammations. The evaluation of cluster headache is an issue unresolved. CASE DESCRIPTION: I present a case of a 24-year-old patient who presented with a 4-week history of side-locked attacks of pain located in the left orbit. He satisfied the revised International Classification of Headache Disorders criteria for cluster headache. His medical and family histories were unremarkable. There was no history of headache. A diagnosis of cluster headache was made. The patient responded to symptomatic treatment. Low-dose computer tomography scan after 2 weeks displayed a left-sided acute maxillary sinusitis. The headache attacks resolved completely after treatment with antibiotics and sinus puncture. DISCUSSION AND EVALUATION: Although I cannot exclude an unintentional comorbidity, in my opinion, the co-occurrence of an acute maxillary sinusitis with unilateral headache, in a hitherto headache-free man, points toward the fact that in this case the cluster headache was caused or triggered by the sinusitis. The headache attacks resolved completely after the treatment and the patient also remained headache free at the follow-up. The response of the headache to sumatriptan and other typical cluster headache medications does not exclude a secondary form. Symptomatic cluster headaches responsive to this therapy have been described. Associated cranial lesions such as infections have been reported in cluster headache patients and the attacks may be clinically indistinguishable from the primary form. CONCLUSIONS: Neuroimaging, preferably contrast-enhanced magnetic resonance imaging including sinuses should always be considered in patients with cluster headache despite normal neurological examination. Acute maxillary sinusitis can present as cluster headache.

Edvardsson B

2013-01-01

39

The effect of intraoperative mupirocin irrigation on Staphylococcus aureus within the maxillary sinus.  

UK PubMed Central (United Kingdom)

BACKGROUND: Antibiotic irrigations are occasionally used during endoscopic sinus surgery when gross mucosal infection is present. These irrigations are thought to flush out pathogenic bacteria and decrease the bacterial load within the mucosal surfaces. This treatment, however, has not been studied in vivo and it is unknown whether antibiotic rinses produce a quantitative reduction in pathologic bacteria within the sinus mucosa. The objective of this study was to determine the relative abundance of Staphylococcus aureus within the maxillary sinus and to evaluate the impact of intraoperative mupirocin irrigation on bacterial burden. METHODS: Sixteen patients with symmetric maxillary chronic rhinosinusitis were prospectively enrolled. After bilateral maxillary antrostomies, biopsies were taken of the maxillary sinus mucosa on both sides. In each patient, the right side was irrigated with 240 mL of normal saline (NS) and the left side was irrigated with 240 mL of NS mixed with 60 mg mupirocin. Repeat maxillary sinus mucosal biopsies were taken from each side 7 to 10 days postsurgery. Each biopsy was analyzed using quantitative polymerase chain reaction to determine the presence and relative amount of S. aureus. RESULTS: Mupirocin irrigations were found to significantly reduce the amount of S. aureus found within the maxillary sinus mucosa compared to NS alone. The average fold change between the pre- and posttreatment biopsies on the right and left was 9.05 and 97.42, respectively (p < 0.01). CONCLUSION: Intraoperative mupirocin irrigations significantly reduce the amount of S. aureus detected within the diseased sinus mucosa at up to 10 days postoperatively.

Seiberling KA; Aruni W; Kim S; Scapa VI; Fletcher H; Church CA

2013-02-01

40

[Maxillary sinusitis of odontogenic origin: surgical treatment].  

UK PubMed Central (United Kingdom)

PURPOSE: The frequency of maxillary sinusitis of dental origin (MSDO) is under estimated. The medical and surgical treatment has improved thanks to endoscopic guidance. We report our experience and strategy in the treatment of MSDO. PATIENTS AND METHODS: Twenty-two patients presenting with MSDO were treated between 1998 and 2008. The results were evaluated on clinical, functional, sinusal, and odontologic signs. RESULTS: MSDO accounted for 16% of surgically managed sinusitis. CT was performed in 95% of cases. The etiologies were apical leakage in seven patients, migration of a tooth or root during extraction, or presence of ectopic tooth in the sinus in nine patients, a cyst in three patients, and oroantral communication in three patients. Surgery was performed after antibiotic and NSAID treatment. The first surgical step was the treatment of the odontogenic source. The second step was sinus drainage by endoscopic treatment in 64%, Caldwell-Luc in 23%, and drainage by oroantral communication enlarged then closed in the same operative time in 13%. The follow up ranged from 3 months to 10 years. Early postoperative superinfection was observed in two patients. Two patients presented with recurrent sinusitis. The postoperative sequels were hyposmia in three patients, dental pulpotomy, and trigeminal neuralgia in five patients treated by Caldwell-Luc surgery. DISCUSSION: Nasal endoscopy has improved the surgical management of MSDO. It makes curettage and exclusion of sinus cavities obsolete. It is reliable and has a low rate of complications. The best treatment remains prevention.

Chemli H; Mnejja M; Dhouib M; Karray F; Ghorbel A; Abdelmoula M

2012-04-01

 
 
 
 
41

Radiological diagnosis of maxillary sinus aspergillosis  

International Nuclear Information System (INIS)

Aspergillosis of the maxillary sinuses shows an increasing incidence in even otherwise healthy patients. Next to inhalation as the mode of infection, a dental root canal filling with an orosinusal fistula can be the cause. As most infections remain initially undetected or underestimated as common sinusitis, early diagnosis must be achieved. Standard X-ray of the paranasal sinuses, conventional tomography as well as CT scans are of major importance. Centrally located hyperdense opacifications are a good criterion and can be best seen in CT. Even when the case has not progressed too much, radical surgery combined with Amphotericin B therapy is still the treatment of choice since the infection may progress rapidly. (orig.).

1992-01-01

42

Endoscopic removal of an ectopic tooth in maxillary sinus.  

UK PubMed Central (United Kingdom)

Ectopic teeth erupted in the maxillary sinus are rarely reported. Although the causes of eruption of a tooth into the maxillary sinus are unclear, some clinical conditions are suspected to be responsible, such as developmental disturbances (cleft palate), displacement of teeth by trauma, interventions or cyst, infection, genetic factors, crowding, and dense bone. Most cases of ectopic teeth in the maxillary sinus are asymptomatic and are occasionally diagnosed thanks to routine radiographic investigations.The aim of this article is to present and discuss the surgical management of an ectopic third molar in the roof of the maxillary sinus.

Viterbo S; Griffa A; Boffano P

2013-01-01

43

Early healing after elevation of the maxillary sinus floor applying a lateral access: A histological study in monkeys  

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Aim: To describe the early healing within the void obtained after the elevation of the sinus mucosa and simultaneous implant installation without the use of any grafting material in monkeys.Material and methods: Implants were installed simultaneously with the elevation of the maxillary sinus using t...

Scala, A; Botticelli, D; Rangel, IG; De Oliveira, JA; Okamoto, R; Lang, NP

44

Effects of staphylococcal enterotoxin on ciliary activity and histology of the sinus mucosa.  

UK PubMed Central (United Kingdom)

CONCLUSION: The results of our study suggest that Staphylococcus aureus enterotoxin A (SEA) may play an important role in the pathogenesis of rhinosinusitis by ciliostatic effects at high concentrations, and by a different mechanism at low concentrations. OBJECTIVES: To investigate the in vitro effects of SEA on ciliary activity and its in vivo effects on histology of the sinus mucosa. MATERIALS AND METHODS: The in vitro effects of SEA on ciliary activity at different concentrations and exposure time were investigated using maxillary sinus mucosa harvested from experimental rabbits. After in vivo instillation of different concentrations (high and low dose) of SEA into the maxillary sinus, ciliary beat frequency (CBF) and histologic findings of the maxillary sinus mucosa were examined. RESULTS: After exposure to low doses of SEA (0.03 and 0.3 ng/ml), CBF did not decrease, but after exposure to high doses of SEA (1.5, 3, and 30 ng/ml), CBF decreased significantly as a function of time. At 24 h after instillation of high-dose SEA (30 ng/ml) into the sinus, CBF decreased significantly and rhinosinusitis was induced after 7 days. Although no alteration was observed in the CBF of the sinus mucosa after instillation of low-dose SEA (0.3 ng/ml), histological findings of rhinosinusitis including subepithelial edema and inflammatory cell infiltration were observed.

Min YG; Oh SJ; Won TB; Kim YM; Shim WS; Rhee CS; Min JY; Dhong HJ

2006-09-01

45

Imaging of silastic cheek implant penetration into the maxillary sinus.  

UK PubMed Central (United Kingdom)

IMPORTANCE: Silastic implants are popular for cosmetic cheek augmentation. We describe the computed tomographic (CT) and magnetic resonance imaging (MRI) findings in 5 cases (4 patients) with penetration of the medial aspect of Silastic cheek implants through the anterior maxillary sinus wall. OBSERVATIONS: Three cases demonstrated associated sinus mucosal thickening, and 3 cases demonstrated infection surrounding the implant. In 3 cases, the implants migrated into the maxillary sinus, and in 1 case the implant also eroded through the nasoantral wall and extended into the nasal cavity. CONCLUSIONS AND RELEVANCE: Maxillary sinus penetration is a potential complication of Silastic cheek implants. The extent of this complication can be characterized by CT and MRI.

Ginat DT; Schatz CJ

2013-02-01

46

High-grade mucoepidermoid carcinoma of maxillary sinus.  

UK PubMed Central (United Kingdom)

Malignant tumors of the paranasal sinus are uncommon, constituting less than 1% of all malignancies and 3% of all head and neck cancers. Nonsquamous cancers of the maxillary sinus are even rarer as is evident from the limited data available on the clinical characteristics and outcomes. Mucoepidermoid carcinoma accounts for 13% of all malignancies occurring in maxillary sinus. We report a rare case of high-grade mucoepidermoid carcinoma of maxillary sinus in a 45-year-old female along with review of the literature.

Daryani D; Gopakumar R; Nagaraja A

2012-01-01

47

Radiotherapy for carcinoma of the maxillary sinus  

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The relationship between the radiation dosage and the prognosis was studied retrospectively. The subjects of this study were 82 patients with maxillary sinus cancer who had been treated by combining therapy (surgery, radiotherapy and chemotherapy) between 1971 and 1987. During this period, the strategy of the surgery and chemotherapy was the same. Since the prognosis of the T4 cases was poor regardless of the radiation dosage, the T4 cases were excluded from the following discussion. Sixty four cases of T3 and T2 were classified into three groups according to the radiation dosage: more than 40 Gy (8 cases), between 40 and 16 Gy (23 cases) and less than 16 Gy (33 cases). The five-year survival rate of each group was 37%, 65% and 79% respectively. From these statistics, it can be concluded that the higher the radiation dosage was, the worse the prognosis was. Besides this relationship between the dosage and the prognosis, since the unfavorable side effects of the radiation becomes worse as the dosage is increased, the radiation dosage should be reduced for the treatment of the maxillary sinus cancer. Radiation of 16 Gy (8 Gy preoperatively and 8 Gy postoperatively) gave us satisfactory results for the cases below T3. However, since T4 cases showed poor prognosis with this radiation scheme, further study is required. (author).

Takahashi, Hiroomi; Okamoto, Makito; Yao, Kazuo; Inagi, Katsuhide (Kitasato Univ., Sagamihara, Kanagawa (Japan). School of Medicine)

1991-02-01

48

Maxillary sinus carcinoma: result of radiation therapy  

Energy Technology Data Exchange (ETDEWEB)

This hundred and sixteen patients with carcinoma of the maxillary sinus received primary therapy consisting of external beam irradiation alone or in combination with surgery and/or chemotherapy at the Department of Radiology, Tokyo Medical and Dental University Hospital, between 1953 and 1982. In our institution, methods of treating cancer of the maxillary sinus have been changed from time to time and showed different control rates and clinical courses. An actuarial 10-year survival rate of 21% has been obtained by the megavoltage irradiation alone as well as 34% actuarial 10-year survival rate by megavoltage irradiation with surgery. After the introduction of conservative surgery followed by conventional trimodal combination therapy, the local control rate has been improved. The amount of functional, cosmetic, and brain damages have been remarkably decreased by this mode of therapy. The actuarial five year survival rate was 67%. In addition, along with the improvement of the local control rate, the control of nodal and distant organ metastases have been emerging as one of the important contributions to the prognosis of this disease.

Shibuya, H.; Horiuchi, J.; Suzuki, S.; Shioda, S.; Enomoto, S.

1984-07-01

49

[Invasive aspergillosis of the maxillary sinus in an immunocompetent patient].  

UK PubMed Central (United Kingdom)

INTRODUCTION: Invasive aspergillosis of the maxillary sinus is a severe infection most commonly observed in immunocompromised patients. We report a pseudo-tumoral presentation of invasive aspergillosis of the maxillary sinus, in immunocompetent adult. CASE REPORT: A 70-year-old female patient consulted for chronic rhino-sinusitis resistant to medical treatment. Computed tomography scan revealed a hyperdense mass filling the left maxillary antrum, with erosion of sinus walls. The ethmoidal and right frontal sinuses were involved. The histological and mycological examination of the surgical resection confirmed the diagnosis of invasive aspergillosis. The patient was given voriconazole as first line treatment. The outcome was good at 18 months. DISCUSSION: Invasive aspergillosis of the maxillary sinus is a rare disease, usually observed in immunodepressed patients. It is very rarely observed in immunocompetent patients.

Abir B; Abouchadi A; Hamama J; Oukabli M; Nassih M; Rzin A

2012-04-01

50

CT-MPR invaluable in diagnosing odontogenic maxillary sinusitis  

Energy Technology Data Exchange (ETDEWEB)

In everyday examination, it is usual to encounter odontogenic maxillary sinusitis patients. Odontogenic maxillary sinusitis is generally best diagnosed by dental X-ray imaging. Many medical facilities not having a dental X-ray unit use coronal computed tomography (CT) images to diagnose odontogenic maxillary sinusitis. Coronal CT imaging causes artifacts, however due to dental prosthesises. Computed tomography-Multiplanar reformation (CT-MPR) imaging has proved useful in evaluating the paranasal sinus because it is not influenced by dental prosthesises. We evaluated the usefulness of CT-MPR for diagnosing odontogenic maxillary sinusitis by retrospectively analyzing 16 patients, with the following results. We couldn't diagnose all cases of odontogenic maxillary sinusitis in posteroanterior and Waters projection images. Panoramic radiography is needed to diagnose odontogenic maxillary sinusitis. Dental X-ray imaging missed some cases, but all cases were diagnosed by CT-MPR imaging, giving a 100% diagnosestic rate. CT-MPR imaging is thus at least as valuable or better than dental X-ray imaging in diagnosing odontogenic maxillary sinusitis. (author)

Aoki, Hideaki; Shimazu, Kaoru; Kamada, Morito; Shiroyama, Akihiro; Mouri, Daisuke; Yamashita, Masashi; Kawasaki, Yasunori; Koseki, Takakazu; Mouri, Manabu [Osaka Dental Univ. (Japan)

2001-08-01

51

Positional relationship between the maxillary sinus floor and the apex of the maxillary first molar using cone beam computed tomograph  

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To assess the positional relationship between the maxillary sinus floor and the apex of the maxillary first molar using cone beam computed tomograph (CBCT). CBCTs from 127 subjects were analysed. A total of 134 maxillary first molars were classified according to their vertical and horizontal positional relationship to the maxillary sinus floor and measured according to the distance between the maxillary sinus floor and the maxillary first molar. Type III (The root projected laterally on the sinus cavity but its apex is outside the sinus boundaries) was dominated between 10 and 19 years and type I (The root apex was not in contact with the cortical borders of the sinus) was dominated (P<0.05) between 20 and 72 years on the vertical relationship between the maxillary sinus floor and the apex of the maxillary first molar. The maxillary sinus floor was located more at the apex (78.2%) than at the furcation (21.3%) for the palatal root. The distance from the root apex to the maxillary sinus floor confined to type I was increased according to the ages (P<0.05). Type M (The maxillary sinus floor was located between the buccal and the palatal root) was most common (72.4%) on the horizontal relationship between the maxillary sinus floor and the apex of the maxillary first molar. CBCT can provide highly qualified images for the maxillary sinus floor and the root apex of the maxillary first molar.

Kim, Kyung Hwa; Koh, Kwang Joon [Department of Oral and Maxillofacial Radiology, School of Dentistry, and Institute of Oral Bio Science, Chonbuk National University, Jeonju (Korea, Republic of)

2008-06-15

52

Arterial blood architecture of the maxillary sinus in dentate specimens.  

UK PubMed Central (United Kingdom)

AIM: To describe vascular anatomy of the maxillary sinus in dentate specimens dissected from human cadavers. METHODS: Twenty dentate maxillary specimens were dissected, anatomically prepared, and injected with liquid latex for a better visualization of the maxillary sinus artery. RESULTS: We found an intraosseous anastomosis in 100% and an extraosseous anastomosis in 90% of the cases. The anterior lateral wall of the maxillary sinus was transversed by two anastomoses between the posterior superior alveolar artery (PSAA) and the infraorbital artery (IOA). The PSAA was divided into a gingival and dental branch. The gingival branch anastomosed with the terminal extraosseous branch of the extraosseous anastomosis (EOA) and the dental branch with the intraosseous branch of the intraosseous anastomosis (IOA). The mean distances from the alveolar ridge to the extraosseus anastomosis were 16 mm for the second maxillary molar, 12.3 mm for the first maxillary molar, and 13.1 mm for the second maxillary premolar. The mean distances from the intraosseous anastomosis to the alveolar ridge were 17.7 mm for the second maxillary molar, 14.5 mm for the first maxillary molar, and 14.66 mm for the second maxillary premolar. CONCLUSION: These findings provide relevant data for clinical dentistry in order to avoid bleeding complications and minimize the risk of injury to the arterial network of the maxillary sinus during surgical procedures in the dentate maxilla region.

Kqiku L; Biblekaj R; Weiglein AH; Kqiku X; Städtler P

2013-04-01

53

Positional relationship between the maxillary sinus floor and the apex of the maxillary first molar using cone beam computed tomograph  

International Nuclear Information System (INIS)

To assess the positional relationship between the maxillary sinus floor and the apex of the maxillary first molar using cone beam computed tomograph (CBCT). CBCTs from 127 subjects were analysed. A total of 134 maxillary first molars were classified according to their vertical and horizontal positional relationship to the maxillary sinus floor and measured according to the distance between the maxillary sinus floor and the maxillary first molar. Type III (The root projected laterally on the sinus cavity but its apex is outside the sinus boundaries) was dominated between 10 and 19 years and type I (The root apex was not in contact with the cortical borders of the sinus) was dominated (P

2008-01-01

54

[Unilateral maxillary sinusitis: a cavernous haemangioma with bone destruction].  

UK PubMed Central (United Kingdom)

Haemangioma originating in the paranasal sinuses are a rare entity. In the case of unilateral sinusitis the differential diagnosis should include tumors. The following case of a 30-year-old female patient with a therapy-resistant sinusitis showed bone destruction and a maxillary shadow on computed tomography. The histological exam resulted in a cavernous haemangioma.

Louza JP; Gürkov R; Weiler C; Krause E

2011-07-01

55

Maxillary sinus floor in edentulous and dentate patients.  

Directory of Open Access Journals (Sweden)

Full Text Available To compare the depth of the maxillary sinus floor on panoramic radiographs between the edentulous and dentate patients. Thirty panoramic radiographs of edentulous female patients and 47 panoramic radiographs of female dentate patients were used for the sample. To measure the depth of the maxillary sinus floor, the outline of the maxillary sinus on the panoramic radiograph was traced on transparent paper. An apparent difference in depth of the maxillary sinus floor was recognized only in comparing the left sides of the edentulous and dentate jaws(P < 0.05). However, there was no statistical difference in the depth of the maxillary sinus floor between the right and left sides in the edentulous and dentate jaws. In this study there seems to be no difference in the depth of maxillary sinus floor between the right and left sides of either the edentulous or dentate jaws. It is not clear as to why, on the other hand, there is a statistical difference in between only the left maxillary sinus floor of the edentulous and dentate jaws, this apparent contradiction might be further investigated statistically.

Ohba T; Langlais R; Morimoto Y; Tanaka T; Hashimoto K

2001-01-01

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Pneumosinus dilatans of the maxillary sinus. Case report.  

Science.gov (United States)

A case of the rare condition pneumosinus dilatans of the maxillary sinus is presented. This is a rare differential diagnosis of a maxillary disease. The diagnostic imaging features of this condition are described, and a recommendation of views for adequately delineating this disorder is given. Only a few cases of pneumosinus dilatans of the maxillary sinus are described in the English-language literature, and the precise cause and pathogenesis remain obscure. We performed an enlargement of the maxillary ostium in order to increase the ventilation of the paranasal sinus. In the short-term follow-up, this patient has been asymptomatic. The postulated mechanism of air trapping in the sinus cavity seems to be logical in this case, because the symptoms were eliminated by surgically decompressing the sinus to overcome this valve mechanism. PMID:10737311

Mauri, M; de Oliveira, C O; Franche, G

2000-03-01

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Pneumosinus dilatans of the maxillary sinus. Case report.  

UK PubMed Central (United Kingdom)

A case of the rare condition pneumosinus dilatans of the maxillary sinus is presented. This is a rare differential diagnosis of a maxillary disease. The diagnostic imaging features of this condition are described, and a recommendation of views for adequately delineating this disorder is given. Only a few cases of pneumosinus dilatans of the maxillary sinus are described in the English-language literature, and the precise cause and pathogenesis remain obscure. We performed an enlargement of the maxillary ostium in order to increase the ventilation of the paranasal sinus. In the short-term follow-up, this patient has been asymptomatic. The postulated mechanism of air trapping in the sinus cavity seems to be logical in this case, because the symptoms were eliminated by surgically decompressing the sinus to overcome this valve mechanism.

Mauri M; de Oliveira CO; Franche G

2000-03-01

58

A PARALLEL STUDY OF RHINOGENIC AND ODONTOGENIC MAXILLARY SINUS DISEASE.  

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Full Text Available Because of its close anatomic relations with nosal and oral cavitis, the maxillary sinus is the place of most frequent inflammatory diseases of all paranasal sinuses. Introduction: The aim of this study was to establish differences in etiology and treatment of rhinogenic and odontogenic maxillary sinusitis. Materials and methods: In this study, we analyzed the etiology, clinical characteristics of the disease, x-ray findings, clinical course and treatment of 188 cases, which were diagnosed and treated as odontogenic or rhinogenic maxillary sinusitis in the Departments of Maxillofacial surgery and Otorhinolaringology – “St. Anna” Hospital, Sofia from 2005 to 2010. Patients were divided according to age and sex. Data was systematized and analyzed. Results: This study clearly showed that rhinogenic diseases of maxillary sinus are three times more frequent than odontogenic diseases. Also the etiology of odontogenic sinusitis most often is due to mistakes in the treatment of the upper teeth (alien corpuses, perforation after extraction), which is completely different from rhinogenic sinusitis. In the surgical treatment of rhinogenic maxillary sinusitis usually endonasal polypectomy was followed by operation according to Caldwell-Luc or functional sinus endoscopy. During the surgical treatment of odontogenic sinusitis the most frequent intervention was surgical plastic of oral-antral communication with mucogingival vestibular flap followed by operation according to Caldwell-Luck what is different from the treatment of rhinogenic sinusitis.Conclusion: Maxillary sinus often suffers from inflammatory diseases and should always be examined carefully by means of anamnesis, clinic exam and x-rays to identify its origin. Upper teeth should be treated carefully in everyday’s dental practice to avoid being cause of sinusitis.

Martin Rubiev; Elitsa Deliverska

2012-01-01

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Lymph node metastasis in maxillary sinus carcinoma  

International Nuclear Information System (INIS)

Purpose: To evaluate the incidence and prognostic significance of lymph node metastasis in maxillary sinus carcinoma. Methods and Materials: We reviewed the records of 97 patients treated for maxillary sinus carcinoma with radiotherapy at Stanford University and at the University of California, San Francisco between 1959 and 1996. Fifty-eight patients had squamous cell carcinoma (SCC), 4 had adenocarcinoma (ADE), 16 had undifferentiated carcinoma (UC), and 19 had adenoid cystic carcinoma (AC). Eight patients had T2, 36 had T3, and 53 had T4 tumors according to the 1997 AJCC staging system. Eleven patients had nodal involvement at diagnosis: 9 with SCC, 1 with UC, and 1 with AC. The most common sites of nodal involvement were ipsilateral level 1 and 2 lymph nodes. Thirty-six patients were treated with definitive radiotherapy alone, and 61 received a combination of surgical and radiation treatment. Thirty-six patients had neck irradiation, 25 of whom received elective neck irradiation (ENI) for N0 necks. The median follow-up for alive patients was 78 months. Results: The median survival for all patients was 22 months (range: 2.4-356 months). The 5- and 10-year actuarial survivals were 34% and 31%, respectively. Ten patients relapsed in the neck, with a 5-year actuarial risk of nodal relapse of 12%. The 5-year risk of neck relapse was 14% for SCC, 25% for ADE, and 7% for both UC and ACC. The overall risk of nodal involvement at either diagnosis or on follow-up was 28% for SCC, 25% for ADE, 12% for UC, and 10% for AC. All patients with nodal involvement had T3-4, and none had T2 tumors. ENI effectively prevented nodal relapse in patients with SCC and N0 neck; the 5-year actuarial risk of nodal relapse was 20% for patients without ENI and 0% for those with elective neck therapy. There was no correlation between neck relapse and primary tumor control or tumor extension into areas containing a rich lymphatic network. The most common sites of nodal relapse were in the ipsilateral level 1-2 nodal regions (11/13). Patients with nodal relapse had a significantly higher risk of distant metastasis on both univariate (p = 0.02) and multivariate analysis (hazard ratio = 4.5, p = 0.006). The 5-year actuarial risk of distant relapse was 29% for patients with neck control versus 81% for patients with neck failure. There was also a trend for decreased survival with nodal relapse. The 5-year actuarial survival was 37% for patients with neck control and 0% for patients with neck relapse. Conclusion: The overall incidence of lymph node involvement at diagnosis in patients with maxillary sinus carcinoma was 9%. Following treatment, the 5-year risk of nodal relapse was 12%. SCC histology was associated with a high incidence of initial nodal involvement and nodal relapse. None of the patients presenting with SCC histology and N0 necks had nodal relapse after elective neck irradiation. Patients who had nodal relapse had a higher risk of distant metastasis and poorer survival. Therefore, our present policy is to consider elective neck irradiation in patients with T3-4 SCC of the maxillary sinus

2000-02-01

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RELATION OF DEVIATED NASAL SEPTUM WITH CHRONIC MAXILLARY SINUSITIS.  

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Full Text Available introduction: A deviated nasal septum can produce nasal obstruction and may block thesinus drainage “ door-ways”, triggering recurrent or chronic infection. The presentstudy is based upon to find the relation of nasal septal deviation with chronic maxillarysinusitis.Materials and Methods: Two groups were made, one control group with midline nasalseptum and other group with septal deviation to either right or left side and maxillarysinusitis were studied. Signs of chronic maxillary sinusitis such as mucosal thickeningand air fluid level, were read using plane x-ray .Results: Findings suggested that there is a co-relation between the deviated nasalseptum with chronic inflammation of maxillary sinus.Conclusion: Of all paranasal sinuses, Maxillary sinuses are most constant in shape andsize, and also most commonly involved in chronic sinusitis. Deviated nasal septum wasfound to be the primary cause of chronic sinus disease in our study. Therefore, to treatsinusitis, septal deviation should be corrected.

ANUJ JAIN

2013-01-01

 
 
 
 
61

CARCINOID TUMOUR OF THE MAXILLARY SINUS  

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Full Text Available Neuroendocrine carcinomas have been described in the larynx, lungs, middle ear and salivary glands. They represent a diversespectrum of histological types with typical carcinoid at the benign end, atypical carcinoid in the middle, and small and large cell neuroendocrinecarcinoma at full malignant. The purpose of this article is to describe and discuss the biologic behavior of a rare case of carcinoid tumour of themaxillary sinus. Many sinonasal neoplasms appear to be composed of small to medium sized cells that stain blue with conventionalhaematoxylin and eosin (H&E) stain. The category of round blue-cell tumour is quite large. Histological diagnosis using H&E alone pose a greatchallenge. The use of immunohistochemical or histochemical methods is an important tool that can be valuable in reaching the diagnosis asshown in the present case by grimelius histochemical method. In addition, the histological, radiological and clinical presentation of this tumour inthe maxillary sinus denoted that the lesion had an aggressive biological behavior.

MOSHY, J R; MWAKYOMA

2010-01-01

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Polymorphous low-grade adenocarcinoma of the maxillary sinus.  

UK PubMed Central (United Kingdom)

Polymorphous low-grade adenocarcinoma (PLGA) is a rare tumor, mostly affecting the minor salivary glands of the oral cavity. We report a case of PLGA which occurred within the maxillary sinus in a 59-year-old woman. The tumor was resected through a transnasal endoscopic approach with wide margins. To the best of our knowledge, this is the first reported case with primary PLGA of the maxillary sinus.

Lee DH; Yoon TM; Lee JK; Lim SC

2013-05-01

63

Surgical correction of pneumosinus dilatans of maxillary sinus.  

Science.gov (United States)

Pneumosinus dilatans is a rare disease in which 1 or more paranasal sinuses are dilated without functional alteration. The frontal sinus is the most commonly affected site, with involvement of the maxillary sinus being rare. Asymmetrical facial contour is the most common sign, and nasal obstruction and pain may also be present. We describe 6 cases of maxillary pneumosinus dilatans with histories of protrusion of the malar region. Plane radiography and computed tomography revealed abnormal expansion of the maxillary sinus without thinning of the bony wall, leading to a diagnosis of maxillary pneumosinus dilatans. Surgical decompression and maxilloplasty were achieved by electrical burring, greenstick downward fracture, or ostectomy of the anterior wall of the maxillary sinus and subsequent repositioning of the removed bony fragments with miniplates. The postoperative course was uneventful, and facial contours were improved on physical and radiologic examination. No recurrence was detected in any case, and good cosmetic results were achieved. In this article, the authors present surgical options for the treatment of pneumosinus dilatans of the maxillary sinus, including a review of the literature. PMID:21558910

Choi, Eui Chul; Shin, Ho Seong; Nam, Seung Min; Park, Eun Soo; Kim, Yong Bae

2011-05-01

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Surgical correction of pneumosinus dilatans of maxillary sinus.  

UK PubMed Central (United Kingdom)

Pneumosinus dilatans is a rare disease in which 1 or more paranasal sinuses are dilated without functional alteration. The frontal sinus is the most commonly affected site, with involvement of the maxillary sinus being rare. Asymmetrical facial contour is the most common sign, and nasal obstruction and pain may also be present. We describe 6 cases of maxillary pneumosinus dilatans with histories of protrusion of the malar region. Plane radiography and computed tomography revealed abnormal expansion of the maxillary sinus without thinning of the bony wall, leading to a diagnosis of maxillary pneumosinus dilatans. Surgical decompression and maxilloplasty were achieved by electrical burring, greenstick downward fracture, or ostectomy of the anterior wall of the maxillary sinus and subsequent repositioning of the removed bony fragments with miniplates. The postoperative course was uneventful, and facial contours were improved on physical and radiologic examination. No recurrence was detected in any case, and good cosmetic results were achieved. In this article, the authors present surgical options for the treatment of pneumosinus dilatans of the maxillary sinus, including a review of the literature.

Choi EC; Shin HS; Nam SM; Park ES; Kim YB

2011-05-01

65

Odontogenic maxillary sinusitis diagnosed using conebeam x-ray CT  

International Nuclear Information System (INIS)

We evaluated the usefulness of conebeam x-ray CT in the diagnosis of odontogenic maxillary sinusitis in 21 patients. Among teeth causing odontogenic maxillary sinusitis, 95% had apical lesions after root canal treatment. Most root canals were filled with filling materials incompletely. Apical lesions in inappropriately treated teeth thus caused odontogenic maxillary sinusitis. Conebeam CT involves 3-dimensional isotropic voxel image date in up to 512 frames for transaxial, coronal, and sagittal planes, so resolution in imaging on the body axis was especially high. Multiplanar reconstruction and volume rendering images at any optional plane could be obtained without interpolation. The relationship between causative teeth and the maxillary sinus could be observed and measured, and odontogenic maxillary sinusitis accurately diagnosed. In addition to the accurate diagnosis of apical lesions, maxilla, and maxillary sinus, periodontal ligament space, lamina dura, pulp cavity, root canal, canal-treated root, apical periodontitis, alveolar ostitis, marginal periodontitis of causative teeth could be observed. Metal artifacts were minimized, making conebeam CT useful in the diagnosis of periodontal tissue and causative teeth, including root-canal-treated and crown-restored teeth. (author)

2007-01-01

66

Trimodal combination therapy for maxillary sinus carcinoma  

International Nuclear Information System (INIS)

[en] Purpose: This study was conducted to evaluate the effectiveness of trimodal combination therapy (radiotherapy, intra-arterial chemotherapy, antrotomy) for the treatment of primary maxillary sinus carcinoma. Methods and Materials: Between 1977 and 1996, 110 patients with maxillary squamous cell carcinoma were treated with trimodal combination therapy at Tokyo Medical and Dental University Hospital. All tumors were classified according to the 1997 UICC TNM staging system. Eighty percent of patients had T3 or T4 tumors. The T3 and T4 tumors were also classified into three groups according to their location, as visualized using computed tomography: the posterior-lateral (P) group, the medial (M) group, and the upper (U) group. Eight patients received additional radiotherapy, and 37 patients underwent a second surgical procedure, in addition to the trimodal combination therapy. Results: The 5-year cause-specific survival and local control rates were 71% and 65%, respectively. The 5-year local control rate was 80% for the T1+2 tumors, 64% for the T3 tumors, and 52% for the T4 tumors (p=0.06). Patients in the P+M group who received a 5-fluorouracil (5-FU) dosage of more than 3500 mg had a better 5-year local control rate than patients who received a 5-FU dosage of less than 3500 mg (p=0.01). No improvement in the local control rate after a second surgical procedure or additional irradiation treatment was observed in any of the groups. Conclusion: Trimodal combination therapy provides good local control, with the final outcome depending on the T stage of the tumor and the dosage of 5-FU

2002-07-01

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Maxillary sinus carcinoma: Natural history and outcome  

International Nuclear Information System (INIS)

To assess natural history, treatment outcome and pattern of relapse in patients with maxillary sinus carcinoma. A review was conducted of the medical records of all adult patients with maxillary sinus carcinoma, who were treated at King Faisal Hospital and Research Centre, Riyadh, Kingdom of Saudi Arabia, between January 1990 and December 1999. A total of 60 patients were identified for analysis, 36 men and 24 women; the median age was 58-years (range 23-95). Major presenting symptoms were facial swelling 55%, facial pain 50%, and nasal obstruction 43.4%, with a median duration of 5-months (range 1-24). Histology was quamous cell carcinoma in 71.7% and adenoid cystic in 16.7%. They were restaged according to American Joint Committee on Cancer classification 1997 as II, III and IV in 1, 10 and 49. Thirty patients received treatment with curative intent (surgery in 4 patients, radiotherapy in 2, and combined modality in 24), 6 patients refused treatment and 24 were treated palliatively. With a median follow up of 50-months (range 2-128) in surviving patients treated with a curative intent, 12/30 failed locally, 4/30 in the regional neck nodes and 2/30 had systemic relapse. The actuarial 5-year overall survival (OS), relapse free survival (RFS) and local control rate (LC) were 55%, 39% and 51%. Treatment modality was the only significant prognostic factor for outcome, with 5 year OS, RFS and LC of 72%, 49% and 61%, for combined modality using surgery followed by radiotherapy compared to 0% for single approach (p=0.0003, p=0.0052 and p=0.0098). This study indicates that the majority of our patients presented with advanced disease, resulting in poor outcome to conventional treatment modalities. Efforts should be directed to minimize the delay in diagnosis at the primary care level. Combined modality treatment should be offered to all patients with locally advanced disease. New approaches such as neoadjuvant or concurrent chemoradiotherapy with or without surgery need to be considered and evaluated in prospective studies. (author)

2004-01-01

68

The role of ultrasonography in the evaluation of maxillary sinusitis in pediatrics.  

UK PubMed Central (United Kingdom)

UNLABELLED: Sinusitis in children may sometimes present non-specific signs and symptoms. The imaging techniques used for its diagnosis are computed tomography and magnetic resonance imaging, the standard radiography being used less and less. Ultrasonography is seldom mentioned in literature as a diagnosis method of sinusitis. OBJECTIVE: The purpose of this study is to evaluate the value of ultrasonography compared with the standard X-ray in the diagnosis of maxillary sinusitis in children. METHOD: The study was prospectively conducted. The study group included 76 patients who had an ultrasound of the maxillary sinuses. The including criteria were represented by uncontrolled or partially controlled asthma, symptomatology suggesting rhinosinusitis and age over 4. Patients with radiological anomalies of the maxillary sinuses were excluded from the study as well as the patients who were not examined through X-ray and the ultrasonography on the same day. The ultrasound was performed with a pediatric convex transducer with the patient in a sitting position. The ultrasonographic exam evaluated the presence of fluid collection and mucosal thickening within the maxillary sinuses. Signs evaluated by X-ray exam were: total opacity of the maxillary sinus, air-fluid level and mucosal thickening. The Wilcoxon matched-pairs tests was used in order correlate the results obtained through ultrasonography and radiograph. It was considered statistic significant p<0.05. Using the ROC curve the sensitivity and the specificity of the ultrasound compared with the standard radiograph were determined. RESULTS: Based on the excluding criteria a number of 67 patients (35 male) were selected from the study group. The patient's mean age+/-standard deviation was 9 years 2 months+/-3 years 9 months. 134 maxillary sinuses were analyzed ultrasonographically and radiologically. There was a diagnosis agreement between the two techniques in 112 out of 134 sinuses (83.5%). Compared to the standard X-ray, ultrasonography had a 94.9 % sensitivity and a 98.4 % specificity. The error of the ultrasound exam compared to the standard X-ray evaluated in a divided interpretation was low for the normal aspect (1.58%) and for the fluid collection (5.12%), but the error for the thickening of the mucosa was high, over 50% (59.37%). IN CONCLUSION: Ultrasonography may come to represent, on a larger scale, an accessible imaging alternative to the more invasive investigations used in the present in evaluating fluid collections in the maxillary sinus in pediatrics.

Fufezan O; Asavoaie C; Chereche? Panta P; Mihu? G; Bursa?iu E; Anca I; Iacob D; Gocan H; Valean C

2010-03-01

69

Reduction osteoplasty for treating pneumosinus dilatans of the maxillary sinus.  

Science.gov (United States)

Objective: To report a patient with maxillary pneumosinus dilatans and facial deformity treated by reduction osteoplasty and reconstruction. Case report: This study describes the successful management of facial deformity in a 17-year-old male with maxillary pneumosinus dilatans. The patient's facial deformity of the maxillary sinus, which had been slowly progressing over a 10-year period, was managed by reduction osteoplasty and reconstruction using the maxillary bone, conchal cartilage and Tutoplast-processed fascia lata via a sublabial approach. This treatment yielded satisfactory functional and aesthetic outcomes. Conclusion: As pneumosinus dilatans of the maxillary sinus is uncommon, there is no established surgical treatment protocol. This surgical technique was less invasive than other described procedures and revealed good cosmetic results. PMID:23290484

Hyun, S M; Min, J-Y; Jang, Y J

2013-01-01

70

Reduction osteoplasty for treating pneumosinus dilatans of the maxillary sinus.  

UK PubMed Central (United Kingdom)

Objective: To report a patient with maxillary pneumosinus dilatans and facial deformity treated by reduction osteoplasty and reconstruction. Case report: This study describes the successful management of facial deformity in a 17-year-old male with maxillary pneumosinus dilatans. The patient's facial deformity of the maxillary sinus, which had been slowly progressing over a 10-year period, was managed by reduction osteoplasty and reconstruction using the maxillary bone, conchal cartilage and Tutoplast-processed fascia lata via a sublabial approach. This treatment yielded satisfactory functional and aesthetic outcomes. Conclusion: As pneumosinus dilatans of the maxillary sinus is uncommon, there is no established surgical treatment protocol. This surgical technique was less invasive than other described procedures and revealed good cosmetic results.

Hyun SM; Min JY; Jang YJ

2013-01-01

71

The value of panoramic radiography in assessing maxillary sinus inflammation  

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To evaluate the value of panoramic radiography in diagnosing maxillary sinus inflammation. A total of 214 maxillary sinuses from 114 panoramic radiographs were assessed in this study. Two independent experienced oral radiologists evaluated the images in random order for sinus inflammation. Using Cone beam CT images as the gold standard, the sensitivity and specificity of panoramic radiography were calculated, and inter- and intraobserver agreement for panoramic interpretation were obtained. The mean sensitivity and specificity of panoramic radiography were 81.0% and 85.6%, respectively. The weighted kappas for inter- and intraobserver agreement of panoramic radiography were 0.56 and 0.60, respectively. Panoramic radiography is a reasonably accurate method for diagnosing maxillary sinus inflammation and can be used for screening. However, additional examinations should be considered in patients with potentially significant pathology.

Cho, Bong Hae; Jung, Yun Hoa; Nah, Kyung Soo [Department of Oral and Maxillofacial Radiology, College of Dentistry, Pusan National University, Pusan (Korea, Republic of)

2008-12-15

72

Transnasal endoscopic removal of dental implants from the maxillary sinus.  

UK PubMed Central (United Kingdom)

PURPOSE: The penetration of dental implants into the maxillary sinus is becoming more common as a result of the use of new techniques to rehabilitate edentulous jaws. This complication requires the removal of the foreign body, even in asymptomatic patients, to prevent inflammatory disease. This article reports the authors' experience with the surgical removal of dental implants from the maxillary sinus with an endoscopic approach via middle meatotomy. MATERIALS AND METHODS: A 10-year (2001 to 2011) retrospective analysis was performed in the authors' departments to identify all patients who underwent endoscopic removal of a dental implant from the maxillary sinus. RESULTS: Sixteen patients (seven women and nine men, mean age 50.7 years) underwent endoscopic removal of the implant from the maxillary sinus via a middle meatotomy. Seven patients (43.8%) received general anesthesia for the surgery, and nine (56.2%) were treated with local anesthesia. No intraoperative or postoperative complications were observed. The mean follow-up period was 62 months. CONCLUSION: In the authors' experience, endoscopic transnasal removal of dental implants from the maxillary sinus via a middle meatotomy is a successful, rapid, safe, and minimally invasive procedure.

Matti E; Emanuelli E; Pusateri A; Muniz CC; Pagella F

2013-05-01

73

Maxillary sinusitis after sinus lift due to Gemella morbillorum: antibiotic and surgical treatment.  

UK PubMed Central (United Kingdom)

Sinus lift is a predictable procedure for increasing alveolar bone height in the posterosuperior alveolar regions to allow oral prosthetic rehabilitation. Several complications have been documented in the literature and vary from sinus membrane perforation to maxillary rhinosinusitis. The authors present a case of Gemella morbillorum acute sinusitis after sinus lift surgery. The purpose of this report is to describe the surgical and pharmacological management of a patient allergic to penicillin.

Beltramini GA; Laganà FC; Giannì AB; Baj A

2013-05-01

74

Estudo histológico e ultra-estrutural da mucosa do seio maxilar em pacientes com rinossinusite crônica e polipose nasossinusal/ Histology and ultrastructural study of the mucosa of the maxillary sinus in patients with chronic rhinosinusitis and nasosinusal polyposis  

Scientific Electronic Library Online (English)

Full Text Available Abstract in portuguese Na rinossinusite crônica, a inflamação da mucosa nasossinusal provoca alterações qualitativas e quantitativas do epitélio respiratório que recobre toda a cavidade nasossinusal, levando à manutenção do quadro inflamatório. FORMA DE ESTUDO: Caso-controle. MATERIAL E MÉTODO: Foram avaliados histopatologicamente dez pacientes com rinossinusite crônica (RC) e polipose nasossinusal (PN) por meio da história clínica e alérgica, estudo microbiológico, microscopia (more) óptica, eletrônica de transmissão e varredura. RESULTADO: A diminuição do número de células colunares ciliadas, o aumento das células caliciformes, a diminuição do número de cílios por célula afetada e a metaplasia escamosa foram alterações freqüentemente encontradas nos casos de rinossinusite, explicando a persistência do quadro pela destruição no epitélio e quebra do sistema mucociliar. Abstract in english In chronic rhinosinusitis, inflammation of the rhinosinusal mucosa provokes qualitative and quantitative changes in the respiratory epithelium that lines the entire rhinosinusal cavity, leading to the maintenance of an inflammatory picture. STUDY DESIGN: Case-control. MATERIAL AND METHOD: In the present study we evaluated histopathologically ten patients with chronic rhinosinusitis on the basis of clinical and allergic history, microbiological study, and light, electron a (more) nd scanning electron microscopy. RESULTS: A reduced number of ciliated columnar cells, an increase in goblet-like cells, a reduction in the number of cilia per affected cell and squamous metaplasia were changes frequently detected in the cases of rhinosinusitis, explaining the persistence of the signs and symptoms due to the destruction of the epithelium and to the breakdown of the mucociliary system.

Dorgam, João Vicente; Souza, Bruno Beltrão de; Sarreta, Sabrina Maria de Castro; Ferreira, Maria Dolores Seabra; Melo, Valder Rodrigues de; Anselmo-Lima, Wilma T.

2004-01-01

75

Estudo histológico e ultra-estrutural da mucosa do seio maxilar em pacientes com rinossinusite crônica e polipose nasossinusal Histology and ultrastructural study of the mucosa of the maxillary sinus in patients with chronic rhinosinusitis and nasosinusal polyposis  

Directory of Open Access Journals (Sweden)

Full Text Available Na rinossinusite crônica, a inflamação da mucosa nasossinusal provoca alterações qualitativas e quantitativas do epitélio respiratório que recobre toda a cavidade nasossinusal, levando à manutenção do quadro inflamatório. FORMA DE ESTUDO: Caso-controle. MATERIAL E MÉTODO: Foram avaliados histopatologicamente dez pacientes com rinossinusite crônica (RC) e polipose nasossinusal (PN) por meio da história clínica e alérgica, estudo microbiológico, microscopia óptica, eletrônica de transmissão e varredura. RESULTADO: A diminuição do número de células colunares ciliadas, o aumento das células caliciformes, a diminuição do número de cílios por célula afetada e a metaplasia escamosa foram alterações freqüentemente encontradas nos casos de rinossinusite, explicando a persistência do quadro pela destruição no epitélio e quebra do sistema mucociliar.In chronic rhinosinusitis, inflammation of the rhinosinusal mucosa provokes qualitative and quantitative changes in the respiratory epithelium that lines the entire rhinosinusal cavity, leading to the maintenance of an inflammatory picture. STUDY DESIGN: Case-control. MATERIAL AND METHOD: In the present study we evaluated histopathologically ten patients with chronic rhinosinusitis on the basis of clinical and allergic history, microbiological study, and light, electron and scanning electron microscopy. RESULTS: A reduced number of ciliated columnar cells, an increase in goblet-like cells, a reduction in the number of cilia per affected cell and squamous metaplasia were changes frequently detected in the cases of rhinosinusitis, explaining the persistence of the signs and symptoms due to the destruction of the epithelium and to the breakdown of the mucociliary system.

João Vicente Dorgam; Bruno Beltrão de Souza; Sabrina Maria de Castro Sarreta; Maria Dolores Seabra Ferreira; Valder Rodrigues de Melo; Wilma T. Anselmo-Lima

2004-01-01

76

Eskimo craniofacial morphology, cold stress and the maxillary sinus.  

UK PubMed Central (United Kingdom)

A determination of the capacity of the maxillary sinus was made for eight Eskimo populations, one Mongolian population and one American white population. Statistical analyses reveal strong and significant correlations of the mean temperature of the coldest month where these populations live with differences in mean maxillary sinus volume (MSV) values. Results indicate that maxillary sinus volume in Eskimo populations decreases in colder areas. These changes may be due to commensurate structural ramifications of internal nasal anatomy variation, specifically of the inferior concha (maxilloturbinal) and inferior meatus. A review of the physiological, morphological and cultural responses of the Eskimo to cold suggests that only the facial area as a whole, and the internal nasal apparatus in particular, sustain significant cold exposure. The "cold-engineered" hypothesis of Mongoloid craniofacial form (Coon et al., '50) finds little support in the anthropological research and literature.

Shea BT

1977-09-01

77

Evaluation the success of osseointegrated implants in maxillary sinus grafts  

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Full Text Available Objective: To analyze implants placed in maxillary sinus grafts with biomaterial of bovine origin and platelet-rich plasma, observing bone neoformation and the clinical and histologic success rate presented.Methods: Analysis of the clinical findings was based on 36 maxillary sinus grafts with 101 implants placed in 30 patients with a mean age of 47 years, and the histologic analysis, based on nine samples of the 36 grafts performed, with a mean interval of 7.5 months time of the graft, the majority of patients being men with a mean age of 42 years. Results: Clinically, 91 implants placed were osseointegrated.Conclusion: Based on the results presented, it was concluded that when implants are placed in the maxillary sinus region grafted with biomaterial, they present a high success rate. ISRCTN24003246

Ana Roseli de Queiroz Gonçalves; Cláudia Maria Veras Maior; Flávia Rabello de Mattos; Rubens Eduardo Gigli; Sérgio Henrique Gonçalves Motta

2008-01-01

78

Radiographic anatomy of the maxillary sinuses in the horse after oblique X-ray examination  

International Nuclear Information System (INIS)

An oblique radiographic examination is done of the maxillary sinuses with description of the anatomical features. The facial crest is signed with metal wire and in the same way was determined the septum between the two maxillary sinuses, the frontomaxillary opening, the caudal border of ventral conchal sinus and the extension of the maxillary sinuses. The infraorbital canal and the nasolacrimal canal are shown as well as the infraorbital and maxillary openings. (Author).

1984-01-01

79

Surgical removal of dental implants displaced into the maxillary sinus  

Directory of Open Access Journals (Sweden)

Full Text Available The accidental displacement of roots, endodontic materials and dental implants into the maxillary sinus are relatively common complications in dental clinical practice. The purpose of this study is to present four cases of displaced dental implant into maxillary sinus, their treatment as well as the prevention of this condition. There are three different major approaches to remove materials displaced into the maxillary sinus: suction from the socket of an extracted tooth, the classical open surgery via the canine fossa and endoscopic approach. A relevant improvement of surgical techniques previous to, or in association with, the placement of implants in the posterior maxilla, has tremendously expanded the possibilities and indications for such treatments. To decrease the risk for developing side effects, it is recommended that sinus augmentation procedures should be performed before inserting implants in a resorbed upper jaw where sinus penetration is unavoidable. As implant displacement in the paranasal sinuses may be followed by infectious complications, an immediate or early removal of the displaced implants is indicated.

Chrcanovic Ramos Bruno; Custódio Neto Luís Antônio

2009-01-01

80

Cavernous sinus thrombosis secondary to fracture of posterior maxillary sinus wall. Case report.  

Science.gov (United States)

The presentation of cavernous sinus thrombosis can be ominous and, in many cases, lead to death or serious morbidity. Infections from the face can tract via a valveless venous system in a retrograde manner to the cavernous sinus. A case of cavernous sinus thrombosis secondary to a non-operable posterior maxillary sinus wall fracture is reported. This case is of interest because the inciting factor was a fracture in the posterior maxillary wall that created a tract from which bacteria traveled to the pterygoid plexus and, ultimately, to the cavernous sinus. Although cavernous sinus thrombosis is uncommon, we present this case to remind medical and dental professionals of the potential complications of infection and trauma to the face, especially in immunocompromised patients. PMID:19882841

Shum, Jonathan W; Lee, Andrew W C; Lustman, Keith; Friedman, Joel M

 
 
 
 
81

Cavernous sinus thrombosis secondary to fracture of posterior maxillary sinus wall. Case report.  

UK PubMed Central (United Kingdom)

The presentation of cavernous sinus thrombosis can be ominous and, in many cases, lead to death or serious morbidity. Infections from the face can tract via a valveless venous system in a retrograde manner to the cavernous sinus. A case of cavernous sinus thrombosis secondary to a non-operable posterior maxillary sinus wall fracture is reported. This case is of interest because the inciting factor was a fracture in the posterior maxillary wall that created a tract from which bacteria traveled to the pterygoid plexus and, ultimately, to the cavernous sinus. Although cavernous sinus thrombosis is uncommon, we present this case to remind medical and dental professionals of the potential complications of infection and trauma to the face, especially in immunocompromised patients.

Shum JW; Lee AW; Lustman K; Friedman JM

2009-08-01

82

Assessment of the lacrimal recess of the maxillary sinus on computed tomography scans.  

UK PubMed Central (United Kingdom)

OBJECTIVE: To assess the frequency of the lacrimal recess in the maxillary sinus (MS) in computed tomography (CT) of the paranasal sinuses. METHODS: CT of the paranasal sinuses (CT PNS) done in a total of 78 patients. According to the discoveries, the MS were classified in two types: anterior or lateral. RESULTS: 41 CT PNS of 41 patients of a total of 78 patients preselected were excluded. 37 CT of the paranasal sinuses from 37 patients, in a total of 68 maxillary sinuses were studied. In the 33 right maxillary sinuses, 10 lacrimal recesses were found, 9 from male patients. Eleven left maxillary sinuses with lacrimal recess were found from a total of 35 left maxillary sinuses. CONCLUSION: From the analysis of 68 MS, a frequency of 30.9% of lacrimal recesses in the maxillary sinuses in CT was observed.

Navarro Pde L; Machado AJ Jr; Crespo AN

2013-05-01

83

Air cyst of the maxillary sinus (pneumosinus dilatans, pneumocoele).  

Science.gov (United States)

A cystic dilatation of a paranasal sinus by an entrapped air mass has been termed pneumosinus dilatans or a pneumocoele. The occurrence of this condition in the maxillary sinus is quite rare. In the present case, a mid-face mass mimicking an osteoma was the presenting sign of the disease. The pathogenesis, clinical features and radiological aspects of this entity are reviewed. In order to avoid confusion with other conditions of different aetiopathogenesis, we propose to label the lesion as 'air cyst' of the paranasal sinus, a term that best describes the nature of the lesion. PMID:1919328

Tovi, F; Gatot, A; Fliss, D M

1991-08-01

84

Air cyst of the maxillary sinus (pneumosinus dilatans, pneumocoele).  

UK PubMed Central (United Kingdom)

A cystic dilatation of a paranasal sinus by an entrapped air mass has been termed pneumosinus dilatans or a pneumocoele. The occurrence of this condition in the maxillary sinus is quite rare. In the present case, a mid-face mass mimicking an osteoma was the presenting sign of the disease. The pathogenesis, clinical features and radiological aspects of this entity are reviewed. In order to avoid confusion with other conditions of different aetiopathogenesis, we propose to label the lesion as 'air cyst' of the paranasal sinus, a term that best describes the nature of the lesion.

Tovi F; Gatot A; Fliss DM

1991-08-01

85

Lymphoepithelial carcinoma in the maxillary sinus: a case report.  

UK PubMed Central (United Kingdom)

UNLABELLED: INTRODUCTION: Lymphoepithelial carcinoma of the maxillary sinus is a very rare malignancy and it can be difficult to make a pre-operative diagnosis. CASE PRESENTATION: A 72-year-old Caucasian woman presented to our facility with an isolated right-side epistaxis that had been present for three months, with the results of a computed tomography scan showing a soft tissue mass in the right maxillary sinus with an impacted tooth. The results of a transnasal endoscopic biopsy were compatible with a lymphoepithelial carcinoma, following which our patient underwent a radical excision of the mass. The final histology results revealed lymphoepithelial carcinoma of the maxillary sinus with negative assays for Epstein-Barr virus. Our patient was given post-operative external radiotherapy and has remained disease-free at three-year follow-up. CONCLUSIONS: This report details the diagnosis and management of a case of lymphoepithelial carcinoma of the maxillary sinus, which is a very rare malignant tumor with very little mention in the literature. Only a strong suspicion with systematic use of various patho-immunological tests helps to arrive at a definitive diagnosis by excluding other better-known tumors.

Mohammed D; Jaber A; Philippe M; Kishore S

2012-01-01

86

Study of relationship between nasal cavity growth and maxillary sinus  

International Nuclear Information System (INIS)

[en] We investigated the pattern of nasal cavity development in relation to dental occlusion development by using CT as well as image analysis instrumentation to measure the left and right nasal cavities in reference to the location of the maxillary sinus. Dried human skulls (Indian origin) were utilized in the present study. Ten samples were selected for each Hellman's dental stage (total of 100 samples). Parameters of the vomer were measured by obtaining CT images. For image analysis, pretreatment of shadowing correction was followed by binarization treatment and measurement of points (intersecting points: anterior and medial wall of the maxillary sinus (point a''), medial and posterior wall (''b''), posterior wall and zygomatic bone (''c''), anterior wall and zygomatic bone (''d''), the intersecting point of the perpendicular line from point ''d'' to the medial wall (''e''), the intersecting point of the perpendicular line from point ''c'' to the medial wall (''f''), the intersecting point of the perpendicular line from the center of gravity to the medial wall (''g''), the intersecting point of the perpendicular line from the center of gravity to the posterior wall of the maxillary sinus (''h'').) Measuring points showed a slight tendency to increase from IA to IVC in the right and left. From IA to IC, a clear increase forward was observed. Our results suggest that the growth of the maxillary sinus and nasal cavity affected the developmental stage of occlusion. (author)

2003-01-01

87

Endoscopic Extraction of the Impacted Wisdom Tooth from Maxillary Sinus  

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Full Text Available We described a case of laterally situated impacted wisdom tooth extraction in maxillary sinus using an endoscopic endonasal approach. The technique was shown to be an adequate alternative to a traumatic transmaxillary approach earlier applied in such cases.

R.A. Larin; A.V. Kuzmin; U.A. Rylkin

2013-01-01

88

Pterygopalatine fossa segment neurectomy of maxillary nerve through maxillary sinus route in treating trigeminal neuralgia.  

Science.gov (United States)

PURPOSE: To explore an effective surgical treatment for pain in the distribution area of the maxillary branch of trigeminal nerve (TN). MATERIALS AND METHODS: Twenty-six patients with pain in the distribution of the maxillary branch of TN were followed up after they had undergone pterygopalatine fossa segment neurectomy of maxillary nerve through maxillary sinus route. RESULTS: In all cases, the pain initially resolved after operation, with anaesthesia or paraesthesia in the operated side of the maxillary nerve-distributed area. After a mean follow-up period of 24 (range 3-36) months, 19 (73.08%) of the 26 patients had an excellent response, 5 (19.23%) had a good response, 2 (7.69%) had a fair response, and none (0%) had a poor response. One patient had a recurrence with palatal pain 3 months after the operation. CONCLUSIONS: The maxillary sinus route can provide a clear vision for sectioning of the maxillary nerve. This new surgical technique has proven to be safe and effective. It provides another option for the weak elderly who are intolerant of craniotomy or patients who have contraindications for craniotomy when radiofrequency thermocoagulation (RFT) and percutaneous glycerol neurolysis (PGR) treatment is not possible. PMID:23375531

Zhu, Shuangxi; Rong, Qiong; Chen, Songling; Li, Xiang

2013-01-31

89

Pterygopalatine fossa segment neurectomy of maxillary nerve through maxillary sinus route in treating trigeminal neuralgia.  

UK PubMed Central (United Kingdom)

PURPOSE: To explore an effective surgical treatment for pain in the distribution area of the maxillary branch of trigeminal nerve (TN). MATERIALS AND METHODS: Twenty-six patients with pain in the distribution of the maxillary branch of TN were followed up after they had undergone pterygopalatine fossa segment neurectomy of maxillary nerve through maxillary sinus route. RESULTS: In all cases, the pain initially resolved after operation, with anaesthesia or paraesthesia in the operated side of the maxillary nerve-distributed area. After a mean follow-up period of 24 (range 3-36) months, 19 (73.08%) of the 26 patients had an excellent response, 5 (19.23%) had a good response, 2 (7.69%) had a fair response, and none (0%) had a poor response. One patient had a recurrence with palatal pain 3 months after the operation. CONCLUSIONS: The maxillary sinus route can provide a clear vision for sectioning of the maxillary nerve. This new surgical technique has proven to be safe and effective. It provides another option for the weak elderly who are intolerant of craniotomy or patients who have contraindications for craniotomy when radiofrequency thermocoagulation (RFT) and percutaneous glycerol neurolysis (PGR) treatment is not possible.

Zhu S; Rong Q; Chen S; Li X

2013-10-01

90

Evaluation of maxillary sinus volume in cleft alveolus patients using 3-dimensional computed tomography.  

UK PubMed Central (United Kingdom)

OBJECTIVE: The aim of the study was to evaluate the volume of the maxillary sinus in patients with cleft alveolus. STUDY DESIGN: This is a retrospective, descriptive study. PATIENTS AND METHODS: The 3-dimensional computed tomographic data of 218 maxillary sinuses of 109 patients with cleft alveolus were compared with those of 100 sinuses of 50 healthy individuals. RESULTS: No significant difference in the maxillary sinus volume was found between the patients with cleft alveolus and the noncleft individuals. In the patients with cleft palate and alveolus, the maxillary sinus volume was significantly larger on the right side, but no significant difference was found between the cleft and noncleft sides. CONCLUSIONS: The volume of the maxillary sinus in the patients with cleft alveolus is not different from that of the noncleft individuals. The information about the maxillary sinus is clinically important in executing such operations as endoscopic sinus surgery.

Hikosaka M; Nagasao T; Ogata H; Kaneko T; Kishi K

2013-01-01

91

Morphometric analysis of the relationships between the maxillary first molar and maxillary sinus floor  

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Full Text Available Objectives: To assess the relationships between the maxillary first molar and the maxillary sinus floor in a group of patients referred to a dental clinic. Methods: Ninety-seven patients were recruited for this study. The distances between the examined roots (mesio-buccal, disto-buccal and palatal) as well as furcations, and the sinus floor, were evaluated using cone beam computed tomography, and grouped as follows: class 0: distance = 0 mm; class 1: 0 mm < distance < 2 mm; class 2: 2 mm ? distance < 4 mm; class 3: 4 mm ? distance < 6 mm; class 4: 6 mm ? distance. The Spearman’s Rank Correlation coefficient was used to test the univariate associations between furca-tion-sinus floor distance and each root class. Results: The prevalence of class 0 was the highest for the palatal root (44.33%), followed in descending order by mesio-buccal (40.21%), and disto-buccal (38.14%) roots. The highest correlation coefficient was recorded when assessing the relationship between furcation-sinus floor distance and palatal root classes (rho = 0.66, p < 0.001, n = 97). Conclusions: Altogether, the results suggest that the palatal root of the maxillary first molar not only had the closest relationship with the sinus floor, but also proved to be the best predictor for the furcation-sinus floor distance. The clinician should be aware of the anatomical and morphological details of this root, especially when taking surgical decisions.

Andreea Didilescu; Mugurel Rusu; Mihai S?ndulescu; Carmen Georgescu; Radu Ciuluvic?

2012-01-01

92

Accidental displacement of dental implants into both the maxillary sinuses during surgery.  

UK PubMed Central (United Kingdom)

Abstract implant displacement into the maxillary sinus during surgery or after a period of use is a complication recognized in the literature. Foreign objects in the maxillary sinus must be removed because they cause sinus infection, via impaired mucociliary flow and tissue reactions. In this article, we present the case of a patient whose dental implants slipped into the maxillary sinuses on both sides during surgery and describe surgical removal of the implants via an intraoral approach.

Eltas A; Dündar S; Eltas S; Altun O; Yolcu U; Saybak A

2013-08-01

93

Recurrent solid ameloblastoma of the maxillary sinus: A case report  

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Full Text Available Introduction. Ameloblastomas are clinically the most important type of odontogenic tumors. Solid or multicystic form most commonly affects mandible, it is highly aggressive and shows high rates of recurrence. The aim was to report aggressive behavior of a rare maxillary solid ameloblastoma, emphasizing the clinical, tomographic and histological aspects. Case Report. A young and asymptomatic patient, presenting a solid ameloblastoma initially located in the maxillary sinus with rapid spreading to the adjacent tissues, had early recurrence despite radical surgical approach. Conclusion. Multicystic or solid ameloblastoma has lower incidence in maxilla and extremely aggressive behavior, justifying careful follow-up of the patients.

Martins de Paiva Tadeu Leonardo; Gama de Paiva Rosa Patrícia; Guimarães Henriques João César; Dantas Batista Jonas; Bardi Matai Viníícius Caio; Rangel Rosa Rafaela

2012-01-01

94

[Measurement of temperature in the sinus maxillaris (author's transl)  

UK PubMed Central (United Kingdom)

With a probe of thermoelement in the sinus maxillaris differences of temperature are described dependent on the respiratory cycle. This method is demonstrated on a model of sinus, compared simultaneous by the measurement of velocity (hotwire-anemometry). The values both parameters indicate a gas exchange between nose and sinus depending on the respiratory cycle. The clinical studies were performed during sinuscopy. The probe can be introduced in the sinus over the Hopkins optic. In case of patent ostium a difference of temperature between 31 degrees - 37 degrees C can be registrated, in one respiratory cycle maximum 4 degrees. No change of temperature had been observed in case of obliterated or temporary closed ostium.

Müsebeck K; Rosenberg H

1980-01-01

95

The use of micro-titanium mesh for maxillary sinus wall reconstruction.  

Science.gov (United States)

Operations on the maxillary sinus can lead to extensive bony defects of the facial and laterodorsal walls of the sinus. If there is no autogenous bone material available, the problem is to find a suitable substitute for reconstruction. We examined the suitability of micro-titanium mesh for reconstruction of the walls of the maxillary sinus. In 13 adult patients large defects of the walls of the maxillary sinus were reconstructed using micro-titanium mesh. Indications for operation were tumours, large dental-type cysts, traumatic bone loss and chronic inflammation in sinuses which had been previously operated on. Clinical and radiological examinations were carried out immediately after surgery and after a 3 months interval. Control by sinuscopy was performed in all patients. Great importance was attached to the following aspects: 1. correctly shaped reconstruction of the maxillary sinus 2. prevention of soft tissue prolapse into the sinus 3. aeration of the maxillary sinus 4. preservation of the facial contour PMID:9032598

Kessler, P; Hardt, N

1996-12-01

96

Pleomorphic adenoma of maxillary sinus - a case report  

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Full Text Available Introduction: Pleomorphic adenoma is the most common head and neck benign glandular tumor. Pleomorphic adenoma of the maxillary sinus has rarely been described in the literature. Objective: To report a case of a patient with a unilateral nasal mass, originated from the maxillary sinus, with histopathological diagnosis of pleomorphic adenoma. Case Report: A.O.V., 55-year-old male Caucasian patient, who had been suffering from nasal obstruction for years and also presented a polypoid mass in the left nasal cavity. Patient was submitted to endoscopic tumor resection and diagnosed of pleomorphic adenoma. Conclusion: Although pleomorphic adenoma is a rare type of tumor, it is benign, and it must be distinguished from other nasal tumors associated with chronic nasal complaints.

Ishikawa, Camila Cristina; Romano, Fabrizio Ricci; Voegels, Richard L; Butugan, Ossamu

2008-01-01

97

Maxillary sinusitis caused by Lasiodiplodia theobromae  

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Full Text Available Lasiodiplodia (monotypic) comprises a very small proportion of the fungal biota. It is a common plant pathogen in tropical and subtropical regions. Clinical reports on its association with onychomycosis, corneal ulcer and phaeohyphomycosis are available. However, Lasiodiplodia theobromae causing fungal sinusitis has not been reported. We present here a case of fungal sinusitis in a 30-year-old woman, who came to the ENT OPD (out patient department) with complaints of intermittent bleeding and nasal discharge from the left side for a week. The patient complained of headache, predominantly on the left side and heaviness on and off since two months. Diagnosis was based on radiological and mycological evidence; the patient underwent endoscopic surgery and was started on antifungal treatment.

Kindo A; Pramod C; Anita S; Mohanty S

2010-01-01

98

Outcomes of flapless crestal maxillary sinus elevation under hydraulic pressure.  

UK PubMed Central (United Kingdom)

PURPOSE: Sinus elevation through the crestal approach has become a routine procedure for implant placement in the posterior edentulous maxilla. The combination of flapless surgery and crestal sinus elevation with simultaneous placement of implants is an attractive surgical approach for implant grafting in the posterior maxilla, but its efficacy and safety have seldom been studied. The aim of this study is to evaluate retrospectively the outcomes of flapless crestal sinus floor elevation using piezosurgery and a hydraulic sinus elevation system with simultaneous implant placement. MATERIALS AND METHODS: Between October 2009 and August 2010, flapless implant surgery using a crestal approach, accompanied by simultaneous hydraulic sinus elevation and grafting, was performed. Patients were followed up clinically and with intraoral and panoramic radiographs. Any postoperative complications, including swelling, discomfort, infection, fractures, and implant loss, were recorded, and sinus bone gain was measured. RESULTS: Thirty-one sinuses were elevated and 35 implants were placed. Patients were a mean of 41.2 ± 6.69 years old, and 45% were women. The sinus was elevated to 7 to 15 mm, and no membrane perforations were noted. The mean follow-up period was 21 weeks. The mean bone gain under the maxillary sinus was 12.03 ± 2.1 mm, and all implants displayed primary stability with a mean insertion torque ? 15 Ncm. No postoperative discomfort, swelling, hematoma, infection, or bone fenestration was noted. One patient experienced prolonged edema in the lower eyelid region, and another lost an implant. CONCLUSION: In this retrospective analysis, flapless crestal sinus floor elevation was safe and effective, decreasing surgical discomfort and trauma and early implant failures.

Bensaha T

2012-09-01

99

[Animal experimental studies on the healing around ceramic implantation in bone lesions in the maxillary sinus region].  

Science.gov (United States)

Clinical and histological tests were made in five minipigs to study the hitherto unknown tissue behaviour of the receiver organism to unilaterally uncovered perforated ceramic implants in the bilaterally osteotomized facial maxillary sinus wall. The implants were covered with connective tissue and coated with respiratory mucosa on the uncovered side. After 11 weeks, they had all healed without irritation, and were solidly anchored in the surrounding tissue by the connective tissue which had grown into the perforations. PMID:266459

Geiger, S A; Pesch, H J

1977-05-01

100

[Animal experimental studies on the healing around ceramic implantation in bone lesions in the maxillary sinus region  

UK PubMed Central (United Kingdom)

Clinical and histological tests were made in five minipigs to study the hitherto unknown tissue behaviour of the receiver organism to unilaterally uncovered perforated ceramic implants in the bilaterally osteotomized facial maxillary sinus wall. The implants were covered with connective tissue and coated with respiratory mucosa on the uncovered side. After 11 weeks, they had all healed without irritation, and were solidly anchored in the surrounding tissue by the connective tissue which had grown into the perforations.

Geiger SA; Pesch HJ

1977-05-01

 
 
 
 
101

[Video-assisted endoscopic sinus revision for treatment of chronic, unilateral odontogenic maxillary sinusitis  

UK PubMed Central (United Kingdom)

BACKGROUND: The proportion of dental causes of maxillary sinusitis is estimated between 10% and 40%. The mechanisms are manifold and originate from the close relation of the side teeth and the maxillary sinus. In the past, the transantral approach was commonly used by maxillofacial surgeons as their first choice. PATIENTS AND METHODS: Between 01/1999 and 10/2001 38 patients underwent endoscopic surgery controlled via the fossa canina. Apart from the mandatory treatment of the dental focus and the mucosal pathologies, a fenestration to the middle meatus of the nose was performed in 7 cases. RESULTS AND CONCLUSION: The dental medical history, OPG, CT scans in coronary plane, endoscopic findings, and histology showed the commonly "silent" course of dental sinusitis. Typical findings in CT scans are unilateral basal maxillary opacities adjacent to the molar and premolar teeth. In 20% of the cases there was also a blockade of the infundibulum. All patients were reexamined 6-12 months postoperatively. The patients are free of symptoms, but sometimes suffer from headaches. An exact diagnosis and the clear separation of rhinogenic causes are vital points for the therapy of dental sinusitis. In cases of unilateral sinusitis, a comprehensive investigation by the maxillofacial surgeon should be recommended. Video-assisted endoscopic sinus revision is preferable to the transantral approach and is especially suitable for the treatment of mucosal retention cysts, the removal of foreign bodies, endoscopically controlled resections of apical roots, elevations of the sinus floor, and dental implants. If the ethmoidal infundibulum and maxillary ostium are open, no fenestration is needed. In cases of blockade, fenestration to the middle nose canal is indicated.

Schleier P; Bräuer C; Küttner K; Müller A; Schumann D

2003-07-01

102

Radiological diagnosis of maxillary sinus aspergillosis. Radiologische Diagnostik der Kieferhoehlenaspergillose  

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Aspergillosis of the maxillary sinuses shows an increasing incidence in even otherwise healthy patients. Next to inhalation as the mode of infection, a dental root canal filling with an orosinusal fistula can be the cause. As most infections remain initially undetected or underestimated as common sinusitis, early diagnosis must be achieved. Standard X-ray of the paranasal sinuses, conventional tomography as well as CT scans are of major importance. Centrally located hyperdense opacifications are a good criterion and can be best seen in CT. Even when the case has not progressed too much, radical surgery combined with Amphotericin B therapy is still the treatment of choice since the infection may progress rapidly. (orig.).

Schulte, B.; Beyer, D. (Akademisches Lehrkrankenhaus, Porz (Germany). Radiologische Abt.)

1992-11-01

103

Sinus maxillaris mycetoma of odontogenic origin: case report  

Scientific Electronic Library Online (English)

Full Text Available Abstract in portuguese O número de infecções fúngicas tem aumentado. Infecções fúngicas com a espécie Aspergillus, presentes nas cavidades dos maxilares, podem estar relacionadas com os ápices dos dentes do arco superior. Mudanças diagnósticas nos seios maxilares e certos tipos de dores faciais podem ser indicativos de infecção fúngica. Os autores relatam um caso de sinusite por aspergilose (aspergillosis sinusitis) e descrevem os métodos de diagnóstico e tratamento desta infecção, que pode estar relacionada com o tratamento endodôntico. Abstract in english Fungal infections are on the increase and those of the jaw cavities with Aspergillus species may be connected with the root apices of teeth in the upper jaw. Diagnostic changes in the sinus maxillaris and certain types of facial pain may be indicative of fungal infection. The authors report a case of aspergillosis sinusitis and describe the diagnostic methods and treatment of this infection that may be associated with endodontic treatment.

Rode, Matjaz; Podboj, Jernej; Kogoj-Rode, Mirela

2004-12-01

104

Prevalence of maxillary sinus pathology in patients considered for sinus augmentation procedures for dental implants.  

UK PubMed Central (United Kingdom)

PURPOSE: To determine the prevalence of maxillary sinus pathology in patients presenting for implant rehabilitation involving sinus augmentation procedures. MATERIALS AND METHODS: Three-dimensional images of 275 patients were evaluated. Age and gender were recorded to see if they had any relationship to the prevalence of pathology. Scans were classified into 1 of the 5 categories based on the type of sinus pathology detected: healthy, mucosal thickening > 5mm, polypoidal mucosal thickening, partial opacification and/or air fluid level, and complete opacification. RESULTS: Overall, 54.9% scans were classified as healthy, and 45.1% scans were classified as exhibiting sinus pathology. Men were more likely to exhibit pathology compared with females (P < 0.01). However, age did not seem to have any relation on the prevalence of sinus pathology. Of the patients who presented with evidence of sinus pathology, 56.5% had mucosal thickening (? 5 mm), 28.2% with polypoidal thickening, 8.9% partial opacification and/or air/fluid level, and 6.5% complete opacification. CONCLUSIONS: It is proposed that, based on the findings of this study, 45.1% patients would require further consultation before proceeding with maxillary sinus augmentation surgery.

Manji A; Faucher J; Resnik RR; Suzuki JB

2013-08-01

105

Radiographic study on maxillary sinus development and nasal septum deviation in cleft palate patient  

International Nuclear Information System (INIS)

This study was designed to investigate the effects of the maxillary sinus development and nasal septum deviation on diseases of maxillary sinus with cleft palate. The materials was 152 cephalometric Waters' projections consist of 76 cleft patients and 76 normal subjects. The results were as follows: 1. The disease of maxillary sinus was present in 49% of a cleft group and 14% of a control group, and prevalent in cleft side. 2. It showed no statistically significant difference in size of the maxillary sinus in cleft palate patients compared to the control population and in the cleft side to the noncleft side (p

1992-01-01

106

[Comparative evaluation of classical sinusotomy and endoscopic interventions on the maxillary sinus in odontogenic sinusitis with evaluation of the transporting function of ciliated epithelium and sinus aeration].  

Science.gov (United States)

In 2002 a total of 98 patients were operated on for odontogenic sinusitis, 49 of these were operated on by endoscopic methods and the rest by classical methods. The transporting function of the epithelium in the nasal cavity and maxillary sinus and the maxillary sinus aeration were evaluated. Pneumatization of the sinus was completely restored and the transporting function of the ciliated epithelium was less disturbed in the patients operated on by the endoscopic method, that is, the mechanisms of maxillary sinus cleansing from secretions were retained, which led to stable cure. PMID:15340305

Ippolitov, V P; Cherniachenko, V V; Agafonov, A A

2004-01-01

107

[Comparative evaluation of classical sinusotomy and endoscopic interventions on the maxillary sinus in odontogenic sinusitis with evaluation of the transporting function of ciliated epithelium and sinus aeration].  

UK PubMed Central (United Kingdom)

In 2002 a total of 98 patients were operated on for odontogenic sinusitis, 49 of these were operated on by endoscopic methods and the rest by classical methods. The transporting function of the epithelium in the nasal cavity and maxillary sinus and the maxillary sinus aeration were evaluated. Pneumatization of the sinus was completely restored and the transporting function of the ciliated epithelium was less disturbed in the patients operated on by the endoscopic method, that is, the mechanisms of maxillary sinus cleansing from secretions were retained, which led to stable cure.

Ippolitov VP; Cherniachenko VV; Agafonov AA

2004-01-01

108

[Insertion of dental implants in the Highmore antrum. Improvement of the maxillary sinus base by bone meal and Tissucol  

UK PubMed Central (United Kingdom)

After five years of experience and good results, the A. introduces a new method for inserting dental implants into the upper jaw. In the majority of cases fails the insertion of the implant in this area, because of the thinness of the bony ring between the alveolar crest and the base of the sinus, resulting in defective fixation. The fixation of the implant is made, after the elevation of the mucosa of the alveolar recess (whether normal or pathological) with a mixture of bone meal and "Tissucol". This compound (paté) wraps the implant, previously set in place by the dentist. In cases of maxillary sinus surgery, the A. recommends, once the mucosa has been treated, to fill the alveolar recess with this paste moulded as a sloping surface running from the outer wall of the sinus toward the floor of the nose, both cavities communicating through the due counter-opening.

Domènec Llavallol O

1991-01-01

109

[Atelectasis of the maxillary sinus. Analysis of progression stages. Apropos of 4 cases].  

Science.gov (United States)

We analyzed atelectasic processes occurring in the maxillary sinus. Several publications in the literature have tempted to analyze the pathogenesis. Clinically the processes are often silent and only revealed when the major opthalmological complication, enophthalmia, becomes patent. In other cases there is a long history of chronic sinusitis. There is a spectacular retraction of the maxillary sinus walls leading to collapse of the orbital floor and enophthalmia. We report four cases of maxillary sinusitis with atelectasia of the sinus walls at different stages of progression. These observations and data in the literature emphasize the importance, whatever the state of development, of endoscopic osteal decompression to avoid ophthalmological complications. PMID:9922835

Hazan, A; Le Roy, A; Chevalier, E; Benzaken, J; Waisberg, A; Cymbalista, M; Adotti, F; Peytral, C

1998-12-01

110

[Atelectasis of the maxillary sinus. Analysis of progression stages. Apropos of 4 cases  

UK PubMed Central (United Kingdom)

We analyzed atelectasic processes occurring in the maxillary sinus. Several publications in the literature have tempted to analyze the pathogenesis. Clinically the processes are often silent and only revealed when the major opthalmological complication, enophthalmia, becomes patent. In other cases there is a long history of chronic sinusitis. There is a spectacular retraction of the maxillary sinus walls leading to collapse of the orbital floor and enophthalmia. We report four cases of maxillary sinusitis with atelectasia of the sinus walls at different stages of progression. These observations and data in the literature emphasize the importance, whatever the state of development, of endoscopic osteal decompression to avoid ophthalmological complications.

Hazan A; Le Roy A; Chevalier E; Benzaken J; Waisberg A; Cymbalista M; Adotti F; Peytral C

1998-12-01

111

Assessment of the relationship between odontogenic maxillary sinusitis and findings in the ostiomeatal unit on coronal CT images  

International Nuclear Information System (INIS)

[en] The ostiomeatal unit (OMU) incorporates the maxillary sinus ostium, infundibulum, uncinate process, hiatus semilunaris ethmoid bulla, middle turbinate and middle meatus. The maxillary ostium is located in the superior portion of the medial maxillary wall and drains into the posterior aspect of the ethmoid infundibulum. The detailed anatomy of the OMU as displayed by CT provides a road map for surgeons prior to endoscopic sinus surgery. However, little attention has been paid to the relationship between the OMU and odontogenic maxillary sinusitis. This study examined the relationship between the osteomeatal unit and odontogenic maxillary sinusitis using coronal CT images. Materials consisted of 100 abnormal maxillary sinuses in 100 odontgenic maxillary sinusitis patients. Using coronal images, mucosal abnormalities were examined by grading expansion of the low density area, which represents the mucous membranes in the maxillary sinuses. Findings were classified into 3 types and the correlation between obstruction of the maxillary ostium and thickening of other sinonasal sinuses was examined. Results of the grading were as follows: 25 maxillary sinuses were graded as type 1, 22 maxillary sinuses as type 2, and 53 maxillary sinuses as type 3. On pattern analysis using coronal CT images, there were significant differences in obstruction of the maxillary ostium based on thickening of the mucous membranes of the odontgenic maxillary sinusitis (p

2008-01-01

112

Evaluation of the postoperative maxillary sinus with computed tomography  

International Nuclear Information System (INIS)

[en] To evaluate the computed tomographic appearances of postoperative maxillary sinuses. 33 asymptomatic cases of post-operative maxillary sinus without evidence of any pathologic changes and clinical symptoms were selected. CT images were classified as opacification, soft tissue shadow, anterior wall depression, nasoantral communication, and compartmentalization. The relationships between the CT image and the age of patients at the time of operation, and between the CT image and the duration of time elapsed since the surgical procedure were evaluated. The most commonly presented radiological characteristics that occurred after the Caldwell-Luc procedure were opacification and soft tissue shadow. Anterior wall depression and nasoantral communication were radiographic indications that a Caldwell-Luc operation had been carried out. The age of patients when they had been first operated on, and the duration between the surgical procedure and the time of evaluation had no effect on the CT appearances of normal changes. In cases involving a longer time interval between the antral surgery and evaluation, the anterior wall depression with bony healing was more commonly observed than soft tissue healing. The radiographic information regarding the normal healing state using computed tomography can distinguish post-operative changes from inflammatory and cystic disease in patients who have undergone a Caldwell-Luc type of radical maxillary astronomy.

2002-01-01

113

Evaluation of the postoperative maxillary sinus with computed tomography  

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To evaluate the computed tomographic appearances of postoperative maxillary sinuses. 33 asymptomatic cases of post-operative maxillary sinus without evidence of any pathologic changes and clinical symptoms were selected. CT images were classified as opacification, soft tissue shadow, anterior wall depression, nasoantral communication, and compartmentalization. The relationships between the CT image and the age of patients at the time of operation, and between the CT image and the duration of time elapsed since the surgical procedure were evaluated. The most commonly presented radiological characteristics that occurred after the Caldwell-Luc procedure were opacification and soft tissue shadow. Anterior wall depression and nasoantral communication were radiographic indications that a Caldwell-Luc operation had been carried out. The age of patients when they had been first operated on, and the duration between the surgical procedure and the time of evaluation had no effect on the CT appearances of normal changes. In cases involving a longer time interval between the antral surgery and evaluation, the anterior wall depression with bony healing was more commonly observed than soft tissue healing. The radiographic information regarding the normal healing state using computed tomography can distinguish post-operative changes from inflammatory and cystic disease in patients who have undergone a Caldwell-Luc type of radical maxillary astronomy.

Kim, Hee Kyung; Heo, Min Suk; Lee, Sam Sun; Choi, Hyun Bae; Choi, Soon Chul; Park, Tae Won [College of Dentistry, Seoul National University, Seoul (Korea, Republic of)

2002-12-15

114

Dentigerous cyst associated with a displaced tooth in the maxillary sinus: an unusual cause of recurrent sinusitis in an adolescent  

International Nuclear Information System (INIS)

We report an unusual case of a displaced maxillary molar and associated dentigerous cyst within the maxillary sinus in an adolescent presenting as recurrent sinusitis. Although a rare cause of sinusitis in children, dentigerous cysts should be included in the differential diagnosis for causes of persistent or recurrent sinusitis in this age group. This report provides further evidence for obtaining imaging studies when managing pediatric sinusitis that does not respond to standard antibiotic therapy. We discuss management options for these lesions including the differential diagnoses and need for follow-up. (orig.)

2009-01-01

115

Dentigerous cyst associated with a displaced tooth in the maxillary sinus: an unusual cause of recurrent sinusitis in an adolescent  

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We report an unusual case of a displaced maxillary molar and associated dentigerous cyst within the maxillary sinus in an adolescent presenting as recurrent sinusitis. Although a rare cause of sinusitis in children, dentigerous cysts should be included in the differential diagnosis for causes of persistent or recurrent sinusitis in this age group. This report provides further evidence for obtaining imaging studies when managing pediatric sinusitis that does not respond to standard antibiotic therapy. We discuss management options for these lesions including the differential diagnoses and need for follow-up. (orig.)

Prabhu, Sanjay P.; Robson, Caroline D. [Children' s Hospital Boston and Harvard Medical School, Department of Radiology, Division of Neuroradiology, Boston, MA (United States); Padwa, Bonnie L. [Children' s Hospital Boston and Harvard Medical School, Department of Oral and Maxillofacial Surgery, Boston, MA (United States); Rahbar, Reza [Children' s Hospital Boston and Harvard Medical School, Department of Otolaryngology and Communication Enhancement, Boston, MA (United States)

2009-10-15

116

Maxillary sinus 3D segmentation and reconstruction from cone beam CT data sets  

International Nuclear Information System (INIS)

Purpose: Segmentation of the maxillary sinuses for three-dimensional (3D) reconstruction, visualization and volumetry is sought using an automated algorithm applied to cone beam computed tomographic (CBCT) data sets. Materials and methods: Cone beam computed tomography (CBCT) data sets of three subjects aged 9, 17, and 27 were used in 3D segmentation and reconstruction. The maxillary sinuses were obtained by propagation from one start point in the right sinus and one start point in the left sinus to the whole regions of both sinuses. The procedure was based on voxel intensity distributions and common anatomic structures, specifically each middle meatus of the nasal cavity. A program was written in C++ and VTK languages to demonstrate the surface topological shapes of the maxillary sinuses. Results: The developed segmentation algorithm separated maxillary sinuses successfully permitting accurate comparisons. It was robust and efficient. 3D morphological features of the maxillary sinuses were observed from three human subjects. Conclusions: Automated segmentation of maxillary sinuses from CBCT data sets is feasible using the proposed method. This tool might be useful for visualization, pathological diagnosis, and treatment planning of maxillary sinus disorders. (orig.)

2006-01-01

117

Maxillary sinus 3D segmentation and reconstruction from cone beam CT data sets  

Energy Technology Data Exchange (ETDEWEB)

Purpose: Segmentation of the maxillary sinuses for three-dimensional (3D) reconstruction, visualization and volumetry is sought using an automated algorithm applied to cone beam computed tomographic (CBCT) data sets. Materials and methods: Cone beam computed tomography (CBCT) data sets of three subjects aged 9, 17, and 27 were used in 3D segmentation and reconstruction. The maxillary sinuses were obtained by propagation from one start point in the right sinus and one start point in the left sinus to the whole regions of both sinuses. The procedure was based on voxel intensity distributions and common anatomic structures, specifically each middle meatus of the nasal cavity. A program was written in C++ and VTK languages to demonstrate the surface topological shapes of the maxillary sinuses. Results: The developed segmentation algorithm separated maxillary sinuses successfully permitting accurate comparisons. It was robust and efficient. 3D morphological features of the maxillary sinuses were observed from three human subjects. Conclusions: Automated segmentation of maxillary sinuses from CBCT data sets is feasible using the proposed method. This tool might be useful for visualization, pathological diagnosis, and treatment planning of maxillary sinus disorders. (orig.)

Shi, Hongjian [Louisville Univ., KY (United States). Computer Vision and Image Processing Lab.; Scarfe, W.C.; Farman, A.G. [Louisville Univ., KY (United States). Div. of Radiology and Imaging Science

2006-08-15

118

[Non-Hodgkin lymphoma of the maxillary sinus  

UK PubMed Central (United Kingdom)

Non-Hodgkin Lymphoma is an infrequent tumor at the paranasal sinuses site, representing no more than 5.8 to 8 percent of the entire malignant neoplasias in this localization. Clinical manifestations are insignificant and the definitive diagnosis comes through its pathological study. Treatment is fundamentally radiotherapy, either isolated or in association to polychemotherapy. Its prognosis use to be better than that of those lymphomas arising in Waldeyer's area. In this paper a case of a primary lymphoma of the maxillary antrum is reported and the literature about this condition is reviewed.

Guallart Domènech F; Artazkoz del Toro JJ; Pons Rocher F; Mompó Romero L; Serrano Badía E

1994-01-01

119

Primary schwannoma of maxillary sinus masquerading as malignant tumour.  

UK PubMed Central (United Kingdom)

Polyp and mucocele are the commonest sinonasal tumours and schwannoma is rarely found in the paranasal sinuses. We report a case of a 64-year-old man presenting with progressive nasal obstruction and numbness on left cheek for the past 2 months. High-resolution CT found a soft tissue mass in the maxillary antrum with bony destruction. Clinical features, radiological scan and nasal endoscopic examination were suggestive of a malignant tumour. Tumour was excised through Caldwell-Luc's approach and histopathological examination found a mixed schwannoma.

Minhas RS; Thakur JS; Sharma DR

2013-01-01

120

Myxofibrosarcoma of the maxillary sinus: a case report.  

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Full Text Available Myxofibrosarcoma, also known as myxoid variant of malignant fibrosis histiocytoma, is often located in the extremities and retroperitoneum of adult males. Its incidence in the ENT area is very low, therefore its diagnosis is often complicated. It has a high rate of local recurrence, although it has low rate of distant metastases. The only effective treatment is complete surgical resection, with little response to chemotherapy and radiotherapy. We present the case of a high-grade myxofibrosarcoma of the left maxillary sinus and nasal cavity, wich we treated with surgery and chemoradiation, but with bad clinical evolution.

Castro-Macia O, Rodriguez-Acevedo N, Alonso-Párraga D, Pérez-Pedrosa A, Quintana-Sanjuas A, Hamdan-Zabarce M, Meléndez-Garcia JM

2012-01-01

 
 
 
 
121

Surgical management of an erupted complex odontoma occupying maxillary sinus.  

Science.gov (United States)

The occurrence of complex odontomas is not considered to be rare in the jaws. But the occurence of large odontomas obscuring the maxillary sinus, or erupting into the oral cavity are considered to be rare. The prognosis is good with surgical excision and recurrence is nil. Most of the times the surgical site can be closed primarily, but sometimes requires local flaps to achieve tension free closure. Here, we report such a case treated by surgical excision trans orally followed soft tissue defect reconstruction with pedicled palatal island flap. PMID:23482681

Arunkumar, K V; Vijaykumar; Garg, Nitin

2012-01-01

122

[Cystic lesion with a displaced tooth in the maxillary sinus].  

UK PubMed Central (United Kingdom)

Ameloblastomas are epithelial odontogenic tumors in the mandibula or maxilla with potential local infiltrating growth; therefore, relapses can occur after incomplete resection. Among the different histological subtypes, the following are of clinical importance: The so-called unicystic ameloblastoma, radiologically presenting as a common dentigerous cyst, and the so-called extraosseous ameloblastoma. This case report describes the rare combination of a unicystic ameloblastoma with extraosseous localization in the maxillary sinus and association with a displaced tooth. This unusual constellation can cause major diagnostic problems.

Braun T; Ihrler S; Kisser U; Leunig A

2011-07-01

123

[Cystic lesion with a displaced tooth in the maxillary sinus].  

Science.gov (United States)

Ameloblastomas are epithelial odontogenic tumors in the mandibula or maxilla with potential local infiltrating growth; therefore, relapses can occur after incomplete resection. Among the different histological subtypes, the following are of clinical importance: The so-called unicystic ameloblastoma, radiologically presenting as a common dentigerous cyst, and the so-called extraosseous ameloblastoma. This case report describes the rare combination of a unicystic ameloblastoma with extraosseous localization in the maxillary sinus and association with a displaced tooth. This unusual constellation can cause major diagnostic problems. PMID:21607801

Braun, T; Ihrler, S; Kisser, U; Leunig, A

2011-07-01

124

Maxillary sinus vascular anatomy and its relation to sinus lift surgery.  

UK PubMed Central (United Kingdom)

OBJECTIVES: To investigate the prevalence, location, size and course of the anastomosis between the dental branch of the posterior superior alveolar artery (PSAA), known as alveolar antral artery (AAA), and the infraorbital artery (IOA). MATERIAL AND METHODS: The first part of the study was performed on 30 maxillary sinuses deriving from 15 human cadaver heads. In order to visualize such anastomosis, the vascular network afferent to the sinus was injected with liquid latex mixed with green India ink through the external carotid artery. The second part of the study consisted of 100 CT scans from patients scheduled for sinus lift surgery. RESULTS: An anastomosis between the AAA and the IOA was found by dissection in the context of the sinus anterolateral wall in 100% of cases, while a well-defined bony canal was detected radiographically in 94 out of 200 sinuses (47% of cases). The mean vertical distance from the lowest point of this bony canal to the alveolar crest was 11.25 ± 2.99 mm (SD) in maxillae examined by CT. The canal diameter was <1 mm in 55.3% of cases, 1-2 mm in 40.4% of cases and 2-3 mm in 4.3% of cases. In 100% of cases, the AAA was found to be partially intra-osseous, that is between the Schneiderian membrane and the lateral bony wall of the sinus, in the area selected for sinus antrostomy. CONCLUSIONS: A sound knowledge of the maxillary sinus vascular anatomy and its careful analysis by CT scan is essential to prevent complications during surgical interventions involving this region.

Rosano G; Taschieri S; Gaudy JF; Weinstein T; Del Fabbro M

2011-07-01

125

Non-Hodgkin's lymphoma of maxillary sinus: An unusual presentation.  

UK PubMed Central (United Kingdom)

Non-Hodgkin's Lymphoma (NHL) are a group of neoplasms that originate from the cells of the lymphoreticular system. Forty percent of Non-Hodgkin's lymphoma arises from extranodal sites. The nasal cavities and paranasal sinuses are rarely affected by primary NHL. Common primary extranodal sites of lymphomas include stomach, liver, soft tissue, dura, bone, intestine and bone marrow. Most patients present with rapidly enlarging masses, often with symptoms both locally and systemically (fever, recurrent night sweats, or weight loss). The vast majority of patients with localized disease are curable with combined modality therapy or combination chemotherapy alone. About 50% patients are cured with doxorubicin based combination chemotherapy and rituximab. An atypical case of extranodal Non-Hodgkin's lymphoma of maxillary sinus is discussed.

Adwani DG; Arora RS; Bhattacharya A; Bhagat B

2013-01-01

126

Evaluation of the lacrimal recess of the maxillary sinus: an anatomical study.  

UK PubMed Central (United Kingdom)

UNLABELLED: The anatomical relation between the maxillary sinus and the nasolacrimal duct has gained greater importance with the advent of microsurgeries and endoscopic-assisted sinonasal procedures, and the growing use of endonasal surgery to perform middle meatus procedures and transnasal dacryocystorhinostomy. We did not find reports on maxillary sinus classification concerning its lacrimal recess, nor how often it is found. OBJECTIVE: To assess how frequent the lacrimal recess can be found in the maxillary sinuses of dissected anatomical specimens. METHOD: We assessed 31 half-heads from cadavers. We dissected the area corresponding to the middle third of the face, by lateral access so as to be able to observe the most lateral portion of the nasolacrimal duct vis-à-vis the maxillary sinus.The maxillary sinuses were assessed by two examiners simultaneously, getting to a consensus in relation to the type of nasolacrimal duct. RESULTS: We assessed 18 maxillary sinuses of the lateral type (58.1%) and 13 anterior sinuses (41.9%). The difference in frequency of the anterior type of maxillary type of the right side (35.7%) and left (47.1%) did not have statistical significance (p = 0.524). CONCLUSION: We found a frequency of 41.9% of lacrimal recesses in the maxillary sinuses.

Navarro Pde L; Machado Júnior AJ; Crespo AN

2013-01-01

127

Retinated 28th Tooth in a Maxillary Sinus — a Rare Observation in a Practice of Otorhinolaryngologist  

Directory of Open Access Journals (Sweden)

Full Text Available An observation of a retinated 28th tooth and follicular cyst discovered in a maxillary sinus in patient with a chronic maxillary sinusitis is presented. The peculiarities of surgical intervention with a use of endoscopic technique are demonstrated.

R.A. Larin; A.V. Kuzmin; E.N. Pisarev; A.V. Shakhov

2010-01-01

128

Maxillary sinus agenesis - report of two cases; Agenesia do seio maxilar - relato de dois casos  

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Agenesis or aplasia of the maxillary sinuses is an extremely rare condition, and only eight cases have been reported in the world medical literature. These malformations may arise as a result of developmental defects. Two cases of unilateral agenesis of the maxillary sinus are presented and the radiological abnormalities and the embryology are discussed. The literature is also reviewed. (author)

Pierre, Jorge Henrique Arraes de Alencar; Santana, Expedito Araujo

2000-04-01

129

Hyperostosis of the maxillary sinus wall in aspergillosis: is it a characteristic finding  

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To determine whether the wall thickening of the maxillary sinus is a characteristic finding in aspergillosis. In 103 patients, including 26 with aspergillosis, 21 with inverted papilloma (IP), and 56 with unilateral chronic sinusitis, the thickness of the maxillary sinus wall was determined by CT scanning. All cases were proven pathologically, and patients with a history of previous surgery of bone destruction were excluded. Two neuroradiologists retrospectively reviewed the CT scans using bone window settings for sinus wall hyperostosis and the presence of intrasinus calcification. Thickening of the maxillary sinus wall was assessed visually in a semiquantitative manner, and graded as 'none' (absence of thickening), 'mild' (thickening of up to 1.5 times), or moderate ot severe(over 1.5 times thicker than normal contralateral sinus wall at its thickest point). Moderate to severe wall thickening was found only in patients with aspergillosis (21/26, 80.8%). Mild wall thickening was seen in two patients with aspergillosis (2/26, 7.7%), in 12 of 21 with IP (57.1%), and in 5 of 56 with chronic maxillary sinusitis (8.9%). Most cases of chronic maxillary sinusits( 51/56,91.1%), 9/21 IP cases (42.9%), and 3/26 cases of aspergillosis (11.5%) showed no thickening of the maxillary sinus wall. Calcifications were found in 18 patients with aspergillosis (69.2%), in no patient with IP (0%), and in one with chronic maxillary sinusitis (1.8%). We suggest that 'moderate to severe' wall thickening of the maxillary sinus is the characteristic finding of aspergillosis. Although various sinonasal diseases can cause bone change, CT findings of hyperostosis of the maxillary sinus and intrasinus calcification are very helpful in differentiating fungal sinusitis from other types of chronic inflammatory lesions.

Kim, Ji Young; Cho, Woo Ho; Kim, Joung Sook; Kim, Myung Gyu; Kim, Young Hoon; Woo, Hoon Young [College of Medicine, Inje Univ., Kimhae (Korea, Republic of)

2002-03-01

130

Hyperostosis of the maxillary sinus wall in aspergillosis: is it a characteristic finding  

International Nuclear Information System (INIS)

To determine whether the wall thickening of the maxillary sinus is a characteristic finding in aspergillosis. In 103 patients, including 26 with aspergillosis, 21 with inverted papilloma (IP), and 56 with unilateral chronic sinusitis, the thickness of the maxillary sinus wall was determined by CT scanning. All cases were proven pathologically, and patients with a history of previous surgery of bone destruction were excluded. Two neuroradiologists retrospectively reviewed the CT scans using bone window settings for sinus wall hyperostosis and the presence of intrasinus calcification. Thickening of the maxillary sinus wall was assessed visually in a semiquantitative manner, and graded as 'none' (absence of thickening), 'mild' (thickening of up to 1.5 times), or moderate ot severe(over 1.5 times thicker than normal contralateral sinus wall at its thickest point). Moderate to severe wall thickening was found only in patients with aspergillosis (21/26, 80.8%). Mild wall thickening was seen in two patients with aspergillosis (2/26, 7.7%), in 12 of 21 with IP (57.1%), and in 5 of 56 with chronic maxillary sinusitis (8.9%). Most cases of chronic maxillary sinusits( 51/56,91.1%), 9/21 IP cases (42.9%), and 3/26 cases of aspergillosis (11.5%) showed no thickening of the maxillary sinus wall. Calcifications were found in 18 patients with aspergillosis (69.2%), in no patient with IP (0%), and in one with chronic maxillary sinusitis (1.8%). We suggest that 'moderate to severe' wall thickening of the maxillary sinus is the characteristic finding of aspergillosis. Although various sinonasal diseases can cause bone change, CT findings of hyperostosis of the maxillary sinus and intrasinus calcification are very helpful in differentiating fungal sinusitis from other types of chronic inflammatory lesions

2002-01-01

131

Clinical study of pathways rising inflammatory diseases in the maxillary sinuses  

Directory of Open Access Journals (Sweden)

Full Text Available Pathways of the maxillary sinus diseases is an interesting issue investigated by many authors during the past decades. The goal of this research was to study the pathways of infection spreading into the maxillary sinuses and to compare them in relation to their frequency, underlying causes and general epidemiologic characteristics of the involved population. A total number of 150 adult patients of both gender suffering different diseases of maxillary sinuses were included into the study. Pathways rising maxillary sinuses diseases were diagnosed on the basis of standard clinical procedures including CT sceau and MRI of the region. We found inflammatory processes to dominate the tumorous ones (107:43 patients). Rhinogenic type of sinusitis was the most frequent disease (72 patients) while odontogenic sinusitis (35 patients) was significantly less frequent. No case of traumatic or hematogenic maxillary sinusitis was found. Rhinogenic maxillary sinusitis is characterized by spontaneous onset while odontogenic one is mostly of arteficial origin after surgical procedures in the oral cavity (88% of patients). In contrast to rhinogenie type, odontogenic maxillary sinusitis is far more frequent in younger patients.

Ra?i? Alek; Janoševi? Ljiljana B.; Stoši?-Divjak S.; ?uki? Vojko; Radulovi? Radomir; Babi? Dragan D.; Janoševi?-Dotli? S.

2004-01-01

132

Piezoelectric surgery in maxillary sinus floor elevation with hydraulic pressure for xenograft and simultaneous implant placement.  

UK PubMed Central (United Kingdom)

Because of the low bone quality in the posterior maxilla, edentulism in this area often results in a resorbed osseous structure and a pneumatized maxillary sinus, which makes dental implant surgery in the posterior maxilla a challenge. Two main surgical approaches are available for the sinus lift procedure: lateral and crestal. Improvement of the maxillary sinus floor elevation technique and increase in predictability are desirable. This article describes an innovative approach to maxillary sinus floor elevation with piezoelectric surgery and hydraulic pressure for xenograft and simultaneous implant placement in situations with insufficient residual alveolar bone.

Li J; Lee K; Chen H; Ou G

2013-09-01

133

Iatrogenically induced foreign body of the maxillary sinus and its surgical management: a unique situation.  

UK PubMed Central (United Kingdom)

The maxillary sinus is in close proximity of the maxillary dentition; due to the close interaction between these two, there is a possibility of any disease process affecting one that can spread or concomitantly affect the other. This proximity may lead to foreign bodies to displace into the maxillary sinus and lead to development of infection. The signs and symptoms of affecting one structure can superimpose on the other; this can lead to diagnostic dilemmas.

Krishnan S; Sharma R

2013-05-01

134

CT findings of malignant tumors of maxillary sinus  

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CT findings of histologically proven malignant tumors of maxillary sinus in 36 patients were retrospectively analyzed. A variety of malignant tumors were included; 27 cases of squamous cell carcinoma, 3 malignant lymphomas, 2 malignant melanomas, 2 rhabdomyosarcomas, and chondrosarcoma, adenoid cystic carcinoma, and malignant ameloblastoma. CT staging was T4 in 19 cases, T3 in 16 cases and T2 in 1 case. The most common involved area beyond maxillary antrum was nasal cavity (25 cases), followed by ethmoid sinus (20 cases), orbit (19 cases), infratemporal fossa (17 cases), check skin (13 cases), pterygopalatine fossa (10 cases), and nasopharynx (6 cases). Skeletal destruction was seen in medial wall of antrum (31 cases), posterior wall of antrum (25 cases), anterior wall of antrum (23 cases), roof of antrum (19 cases), lamina papyracea (6 cases), and lateral wall of orbit (5 cases) in that order of frequency. Lymph node metastases were found in 2 cases of malignant melanoma, 2 cases of malignant lymphoma, and chondrosarcoma, squamous cell carcinoma, and malignant ameloblastoma. Predilection site of lymph node involvement was submandibular (3 cases), internal jugular (2 cases), parotid (2 cases), and retropharyngeal node (1 case)

Park, Hyun Ae; Byun, Hong Sik; Kim, Kie Hwan; Chin, Soo Yil [Korea Cancer Center Hospital, Seoul (Korea, Republic of)

1987-12-15

135

CT findings of malignant tumors of maxillary sinus  

International Nuclear Information System (INIS)

CT findings of histologically proven malignant tumors of maxillary sinus in 36 patients were retrospectively analyzed. A variety of malignant tumors were included; 27 cases of squamous cell carcinoma, 3 malignant lymphomas, 2 malignant melanomas, 2 rhabdomyosarcomas, and chondrosarcoma, adenoid cystic carcinoma, and malignant ameloblastoma. CT staging was T4 in 19 cases, T3 in 16 cases and T2 in 1 case. The most common involved area beyond maxillary antrum was nasal cavity (25 cases), followed by ethmoid sinus (20 cases), orbit (19 cases), infratemporal fossa (17 cases), check skin (13 cases), pterygopalatine fossa (10 cases), and nasopharynx (6 cases). Skeletal destruction was seen in medial wall of antrum (31 cases), posterior wall of antrum (25 cases), anterior wall of antrum (23 cases), roof of antrum (19 cases), lamina papyracea (6 cases), and lateral wall of orbit (5 cases) in that order of frequency. Lymph node metastases were found in 2 cases of malignant melanoma, 2 cases of malignant lymphoma, and chondrosarcoma, squamous cell carcinoma, and malignant ameloblastoma. Predilection site of lymph node involvement was submandibular (3 cases), internal jugular (2 cases), parotid (2 cases), and retropharyngeal node (1 case).

1987-01-01

136

Intranasal endoscopic prelacrimal recess approach to maxillary sinus.  

UK PubMed Central (United Kingdom)

BACKGROUND: The inferior turbinate (IT) and nasolacrimal duct (NLD) are often sacrificed while managing the diffuse lesion of maxillary sinus (MS). We report a new approach to MS without ablation of NLD and IT. METHODS: This retrospective study enrolled 19 hospitalized patients (aged from 42 to 68 years) who underwent endoscopic sinus surgery between 2003 and 2008. Twelve patients had inverted papilloma (IP), two had nasal polyps, two had Kubo's postoperative cyst of MS, one had recurrent bone cyst of maxilla, one had dentigerous cyst and one had bleeding of internal maxillary artery secondary to Caldwell-Luc operation respectively. Two IP patients were excluded from this group since the follow-up time was less than 12 months. The NLD was dissected after removing the anterior bony portion of nasal lateral wall. The prelacrimal recess approach (PLRA) to MS was established when IT-NLD flap was raised medially. The flap was repositioned when MS lesion was removed. RESULTS: All the 17 patients had unilateral lesions. Ten MS IP patients were at the T3 Krouse stage. The follow-up ranged from 7 to 60 months. No recurrence was seen in 16 patients. Only one IP patient had a local recurrence in MS. All of them had no any complications. CONCLUSION: The diffuse or severe diseases of MS may be the potential indications for PLRA.

Zhou B; Han DM; Cui SJ; Huang Q; Wang CS

2013-04-01

137

A Radiologic Study of the Relationship of the Maxillary Sinus Floor and Apex of the Maxillary Molar  

International Nuclear Information System (INIS)

In this study, radiographic evaluation was made using panoramic radiography and cross-sectional tomography of SCANORA in male and female adults in their 20 s on the relationship between the maxillary sinus floor and the apex of the maxillary molar, to test the accuracy and effectiveness of the cross-sectional tomography, and to use this information in the assessment of preop, and postop, root canal treatment, apical surgery, extraction and implantology. Forty-one adults with an average age of 24.4 years were studied panoramic radiography and cross-sectional tomography. In panoramic view and cross-sectional view, the position of the apices of maxillary molars were classified as separated, contacted, or protruded type; the general shape of the maxillary sinus floor was evaluated horizontally and vertically from cross-sectional tomography. The accuracy of each radiography was tested using maxilla from 5 fresh cadavers from the Anatomy Lab at Yonsei University Dental College, and panoramic view and cross-sectional tomography were taken in the same condition as with the patients. The results were as follows ; 1. Panoramic view and cross-sectional view were taken in the maxilla specimen, and the actual distance between the maxillary sinus floor and the tooth apices were measured in the specimen; the median values of the distance from the tooth apices to the maxillary sinus floor in the panoramic view, cross-sectional view and in the accrual maxilla specimen were 2.83 mm, 4.51 mm, and 4.15 mm, respectively. In the cross-sectional view, the measured distance was close to the actual distance but in the panoramic view, the measured distance was far from the actual distance. 2. When the results of the panoramic view and cross-sectional view were compared, 40.5% of the results agreed with each other in the two radiographic methods and buccal roots of the 2nd molar were the closest to the maxillary sinus floor in the cross-sectional tomography.3. In cross-sectional view, when the vertical relationship of the maxillary sinus floor and maxillary roots was assessed, in 1st molars, type II (the sinus floor that extends down to the buccolingual furcation area) was predominant, while in 2nd molars, type I (the sinus floor located above the level connecting the buccal and lingual apices) was predominant. In the horizontal relationship, in 1st olars, type II (ths lowest floor of the maxillary sinus located in between the buccal and lingual roots) was predominant; in 2nd molars, type I (the lowest floor of the maxillary sinus located on the buccal side of the buccal roots) and type II appeared in similar frequency. In conclusion, the SCANORA cross-sectional tomography was more effective than the frequently used panoramic view, in that the relationship of the maxillary molars and maxillary sinus floor can be evaluated more accurately and the buccolingual cross-sectional view can also be observed. And maxillary sinus floor that was close to maxillary 2nd molar had tendency to be located on buccal side than that close to 1st molar. Therefore, cross-sectional tomography is an effective and accurate method to evaluate the position of the teeth in relation to the sinus floor preoperative and can be easily used to diagnose localized periapical lesions. Also the image quality obtained was quite satisfactory.

1998-01-01

138

A Radiologic Study of the Relationship of the Maxillary Sinus Floor and Apex of the Maxillary Molar  

Energy Technology Data Exchange (ETDEWEB)

In this study, radiographic evaluation was made using panoramic radiography and cross-sectional tomography of SCANORA in male and female adults in their 20 s on the relationship between the maxillary sinus floor and the apex of the maxillary molar, to test the accuracy and effectiveness of the cross-sectional tomography, and to use this information in the assessment of preop, and postop, root canal treatment, apical surgery, extraction and implantology. Forty-one adults with an average age of 24.4 years were studied panoramic radiography and cross-sectional tomography. In panoramic view and cross-sectional view, the position of the apices of maxillary molars were classified as separated, contacted, or protruded type; the general shape of the maxillary sinus floor was evaluated horizontally and vertically from cross-sectional tomography. The accuracy of each radiography was tested using maxilla from 5 fresh cadavers from the Anatomy Lab at Yonsei University Dental College, and panoramic view and cross-sectional tomography were taken in the same condition as with the patients. The results were as follows: 1. Panoramic view and cross-sectional view were taken in the maxilla specimen, and the actual distance between the maxillary sinus floor and the tooth apices were measured in the specimen; the median values of the distance from the tooth apices to the maxillary sinus floor in the panoramic view, cross-sectional view and in the accrual maxilla specimen were 2.83 mm, 4.51 mm, and 4.15 mm, respectively. In the cross-sectional view, the measured distance was close to the actual distance but in the panoramic view, the measured distance was far from the actual distance. 2. When the results of the panoramic view and cross-sectional view were compared, 40.5% of the results agreed with each other in the two radiographic methods and buccal roots of the 2nd molar were the closest to the maxillary sinus floor in the cross-sectional tomography.3. In cross-sectional view, when the vertical relationship of the maxillary sinus floor and maxillary roots was assessed, in 1st molars, type II (the sinus floor that extends down to the buccolingual furcation area) was predominant, while in 2nd molars, type I (the sinus floor located above the level connecting the buccal and lingual apices) was predominant. In the horizontal relationship, in 1st olars, type II (ths lowest floor of the maxillary sinus located in between the buccal and lingual roots) was predominant; in 2nd molars, type I (the lowest floor of the maxillary sinus located on the buccal side of the buccal roots) and type II appeared in similar frequency. In conclusion, the SCANORA cross-sectional tomography was more effective than the frequently used panoramic view, in that the relationship of the maxillary molars and maxillary sinus floor can be evaluated more accurately and the buccolingual cross-sectional view can also be observed. And maxillary sinus floor that was close to maxillary 2nd molar had tendency to be located on buccal side than that close to 1st molar. Therefore, cross-sectional tomography is an effective and accurate method to evaluate the position of the teeth in relation to the sinus floor preoperative and can be easily used to diagnose localized periapical lesions. Also the image quality obtained was quite satisfactory.

Yoon, Hae Rym; Park, Chang Seo [Dept. of Dental Radiology, College of Dentistry, Yonsei University, Seoul (Korea, Republic of)

1998-02-15

139

Evaluation of the posterior superior alveolar artery and the maxillary sinus with CBCT.  

UK PubMed Central (United Kingdom)

Assessment of the maxillary sinus anatomy before sinus augmentation is important for avoiding surgical complications, because of the close anatomical relationship between the posterior maxillary teeth and the maxillary sinus. The posterior superior alveolar artery (PSAA) is the branch of the maxillary artery that supplies the lateral sinus wall and overlying membrane. We evaluated the location of the PSAA and its relationship to the alveolar ridge and maxillary sinus using cone beam computed tomography (CBCT). The study group consisted of 135 CBCT scans (270 sinuses) obtained from the archive of the dentomaxillofacial radiology department at Yeditepe University Faculty of Dentistry, Istanbul, Turkey. The distance between the lower border of the artery and the alveolar crest, bone height from the sinus floor to the ridge crest, distance from the artery to the medial sinus wall, and the diameter and location of the artery were determined. The occurrence of septa and pathology were recorded from CBCT scans. The PSAA was observed in 89.3% of sinuses, and 71.1% of arteries were intraosseous with diameters mostly < 1 mm (68.9%). The prevalence of sinus septa was 55.2%, and that of sinus pathology was 57.4%. The mean age was 43.07 ± 17.55 years. There was a statistically significant difference between the location of the artery and gender (p < 0.05). The prevalence of sinus membrane thickening was 57.4%. Detailed knowledge about the location of the PSAA and sinus morphology may be obtained with CBCT before maxillary sinus surgery.

Ilgüy D; Ilgüy M; Dolekoglu S; Fisekcioglu E

2013-09-01

140

Evaluation of the posterior superior alveolar artery and the maxillary sinus with CBCT  

Scientific Electronic Library Online (English)

Full Text Available Abstract in english Assessment of the maxillary sinus anatomy before sinus augmentation is important for avoiding surgical complications, because of the close anatomical relationship between the posterior maxillary teeth and the maxillary sinus. The posterior superior alveolar artery (PSAA) is the branch of the maxillary artery that supplies the lateral sinus wall and overlying membrane. We evaluated the location of the PSAA and its relationship to the alveolar ridge and maxillary sinus usin (more) g cone beam computed tomography (CBCT). The study group consisted of 135 CBCT scans (270 sinuses) obtained from the archive of the dentomaxillofacial radiology department at Yeditepe University Faculty of Dentistry, Istanbul, Turkey. The distance between the lower border of the artery and the alveolar crest, bone height from the sinus floor to the ridge crest, distance from the artery to the medial sinus wall, and the diameter and location of the artery were determined. The occurrence of septa and pathology were recorded from CBCT scans. The PSAA was observed in 89.3% of sinuses, and 71.1% of arteries were intraosseous with diameters mostly < 1 mm (68.9%). The prevalence of sinus septa was 55.2%, and that of sinus pathology was 57.4%. The mean age was 43.07 ± 17.55 years. There was a statistically significant difference between the location of the artery and gender (p < 0.05). The prevalence of sinus membrane thickening was 57.4%. Detailed knowledge about the location of the PSAA and sinus morphology may be obtained with CBCT before maxillary sinus surgery.

Ilguy, Dilhan; Ilguy, Mehmet; Dolekoglu, Semanur; Fisekcioglu, Erdogan

2013-09-01

 
 
 
 
141

Pneumosinus dilatans of the maxillary sinus: a case report and review of the literature.  

Science.gov (United States)

Pneumosinus dilatans (PSD) is an abnormal dilatation of one or more of the paranasal sinuses and must be included in the differential diagnosis of expansile lesions of the sinonasal tract. The frontal and sphenoid sinuses are the most frequently involved sites. Herein, we present the case of a 30-year-old woman with a 6-year history of right nasal obstruction and pain in the right maxillary region, elicited by rapid changes in atmospheric pressure. Computed tomography (CT) detailed an abnormal expansion of the right maxillary sinus resulting from a process of hyperpneumatization with no evidence of bone erosion, leading to the diagnosis of PSD. Restoration of permanent pressure equilibrium in the right maxillary sinus and improvement in the patency of the nasal fossa were achieved by a subtotal resection of the medial wall of the maxillary sinus by an endoscopic approach. Two years later, the patient was asymptomatic, and a CT scan showed no progression of the disease. PMID:12937914

Trimarchi, Matteo; Lombardi, Davide; Tomenzoli, Davide; Farina, Davide; Nicolai, Piero

2003-03-18

142

Pneumosinus dilatans of the maxillary sinus: a case report and review of the literature.  

UK PubMed Central (United Kingdom)

Pneumosinus dilatans (PSD) is an abnormal dilatation of one or more of the paranasal sinuses and must be included in the differential diagnosis of expansile lesions of the sinonasal tract. The frontal and sphenoid sinuses are the most frequently involved sites. Herein, we present the case of a 30-year-old woman with a 6-year history of right nasal obstruction and pain in the right maxillary region, elicited by rapid changes in atmospheric pressure. Computed tomography (CT) detailed an abnormal expansion of the right maxillary sinus resulting from a process of hyperpneumatization with no evidence of bone erosion, leading to the diagnosis of PSD. Restoration of permanent pressure equilibrium in the right maxillary sinus and improvement in the patency of the nasal fossa were achieved by a subtotal resection of the medial wall of the maxillary sinus by an endoscopic approach. Two years later, the patient was asymptomatic, and a CT scan showed no progression of the disease.

Trimarchi M; Lombardi D; Tomenzoli D; Farina D; Nicolai P

2003-08-01

143

Ligation of an unusually large vessel during maxillary sinus floor augmentation. A case report.  

UK PubMed Central (United Kingdom)

PURPOSE: The purpose of the present case report was to document a maxillary sinus floor augmentation procedure involving ligation of a blood vessel with a nearly 3-mm diameter in the lateral wall of the maxillary sinus. MATERIALS AND METHODS: A bilateral maxillary sinus floor augmentation procedure was performed in a 51-year-old healthy man. The preoperative computed tomography scan revealed a bony canal within the lateral maxillary sinus wall of the right as well as the left side close to the alveolar ridge. RESULTS: A vessel with a diameter of nearly 3 mm was identified during the sinus floor augmentation on the left side. The vessel was exposed and ligated. A vessel with a diameter of approximately 1 mm was identified on the right side and the sinus floor augmentation was performed without ligation. No complications were observed and the postoperative healing was uneventful. CONCLUSIONS: Although accidental laceration of vessels with an unusually large diameter during maxillary sinus floor augmentation is not life-threatening, impaired visualisation may compromise the augmentation procedure, including the elevation of the Schneiderian membrane. Moreover, postoperative bleeding and formation of a haematoma may occur. Therefore, ligation of vessels with an unusually large diameter is recommended during maxillary sinus floor augmentation to minimise intra- and postoperative complications.

Testori T; Rosano G; Taschieri S; Del Fabbro M

2010-01-01

144

Maxillary sinus lift using fresh frozen bone chips in presence of sinus cyst: clinical and histological report.  

UK PubMed Central (United Kingdom)

The reconstruction of edentulous patients with adequate bone volume and density by the use of bone graft and, subsequently, the placement of dental implants has become a viable treatment option with high predictability. According to many authors, maxillary antral cysts are one of the most common benign pathologies of the maxillary sinus, and they also represent an important contraindication to sinus regenerative surgical technique. The authors report a case of maxillary atrophy which is augmented by fresh frozen bone chips in the presence of antral cysts.

Acocella A; Bertolai R; Nissan J; Ellis E 3rd; Sacco R

2012-06-01

145

Radiodense concrements in sinus maxillaris-CT diagnosis of sinus aspergillosis  

International Nuclear Information System (INIS)

[en] 11 patients with radiodense concrements in the sinus maxillaris underwent a preoperative computertomographic examination of the sinus maxillaris and the sinus concrements. 8 patients (72.7%) with the occurrence of radiodense concrements presented postoperative a histological and microbiological infection with aspergillus fumigatus. The CT-numbers of radiodense concrements in patients with aspergillus were 2802±302.4 HU (Hounsfield Unit). Concrements of patients without aspergillus infection (n=3) had lower density (368.6±149.1 HU; p[de] Bei 11 Patienten mit im Nativ-Nasennebenhoehlen-Roentgen erkennbaren metalldichten Fremdkoerpern im Lumen der Kieferhoehle wurde eine CT-Untersuchung der NNH angeschlossen. Bei praeoperativ geaeussertem Verdacht einer Aspergillose wurde mittels CT die Dichte des Fremdkoerpers in der Kieferhoehle und des benachbarten Zahnwurzelfuellmaterials gemessen. Postoperativ konnte bei 8 Patienten (72,7%) eine Aspergillose histologisch und mittels mikrobieller Kultur bestaetigt werden. Die Dichte des metalldichten Fremdkoerpers betrug bei den Patienten mit einem bestaetigten Aspergillom 2802±302,4 HE (Hounsfield-Einheiten). Bei drei Patienten ohne Aspergillom hatte der Fremdkoerper einen deutlich niedrigeren Dichtewert (368,6±149,1 HE; p

1993-01-01

146

The superior alveolar nerves: their topographical relationship and distribution to the maxillary sinus in human adults.  

Science.gov (United States)

The superior alveolar nerves in human adults were investigated macroscopically using whole-mount silver impregnation, paying special attention to their topographical relationship and distribution to the mucous membrane of the maxillary sinus. In addition, the fiber composition of the alveolar nerves was analysed in order to estimate their contribution to teeth innervation. The posterior superior alveolar nerve (PSAN) ran through canaliculi in the lateral wall of the sinus (23 of 37 cases, 62.2%) or under the mucous membrane of the sinus (14 of 37 cases, 37.8%). Moreover, the PSAN gave off many fine twigs to make complex plexus under the mucous membrane of the sinus before joining the superior dental plexus. The plexus of the maxillary sinus was separated from the superior dental plexus by the bony wall of the sinus. After the above gross observations, the perimeter compositions of myelinated fibers of the plexus, PSAN and the anterior alveolar nerve were analysed in the same specimen. The plexus was composed of myelinated fibers of less than 27 microns in circumference perimeter (mean: 14.3 microns) and numerous unmyelinated fibers. The fiber composition suggested that few fibers in the plexus of the maxillary sinus contribute to the formation of the superior dental plexus. The superior dental plexus, innervating the upper teeth, was located in the thick alveolar process of the maxilla, and not on the maxillary sinus wall. The clinical importance of these results was discussed in relation to nerve injury during antrostomy of the maxillary sinus. PMID:8041567

Murakami, G; Ohtsuka, K; Sato, I; Moriyama, H; Shimada, K; Tomita, H

1994-03-01

147

A comparative study of radiographic images of maxillary sinusitis  

International Nuclear Information System (INIS)

The purpose of this study was to evaluate the Waters' views, panoramic and periapical radiograms as well as clinic al symptoms in the diagnosis of maxillary sinusitis. The author analyzed the types of mucosal thickenings, the types of bony wall changes, the pathologic changes of antra l floors and total amount of agreement on radiograms in 495 patients with 505 maxillary sinuses which demonstrated radio graphic changes. The results were obtained as follows : 1. 125 cases (24.8%) showed the mucosal thickening of antral floor and lateral wall (Type II), 106 cases (20.9%) showed the mucosal thickening around the whole antral wall (Type IV) and 75 cases (14.8%) showed increased radiopacity of whole antrum. 2. Among 505 cases of mucosal thickening, 319 cases (63.2%) showed the bony wall changes : 114 cases (35.9%) showed the thining of lateral walls, 105 cases (32.8%) showed the thickening of lateral walls and 47 cases (14.7%) showed indistinct antral walls. 3. Among 6 types of mucosal thickenings, the incidence of bony wall changes was high in type VI (73.3%) and in type IV (71.6%). 4. 139 cases (25.1%) showed no pathologic change of antral floor, 127 cases (22.9%) showed the indistinct antral floor and 022 cases (22.1%) showed the halo appearance of antral floor on panoramic and periapical radiograms. 5. 449 cases (88.9%) showed apparent increased radiopacity and 47 cases (9.3%) showed suspicious increased radiopacity on Waters' views. 280 cases (71.6%) showed apparent increased radiopacity and 88 cased (22.5%) showed suspicious increased radiopacity on panoramic radiograms. And 141 cases (31.6%) showed apparent increased radiopacity and 133 cases (33.4%) showed suspicious increased radiopacity on periapical radiograms.

1997-01-01

148

[Experimental studies of wound healing in the paranasal sinuses. I. A model of respiratory wounds in the rabbit maxillary sinus].  

Science.gov (United States)

We present an animal model in rabbits for the investigation of normal wound healing in the paranasal sinuses. The blood and lymphatic stream and the mucociliary pathways are demonstrated on the medial maxillary sinus wall to study the influence on wound geometry. Standardized and circular wounds are created in the same area exposing the underlying bone of the maxillary sinus. Using a computer aided system for 3-D-reconstruction, it can be shown that respiratory wound closure is independent of the stream of blood, lymph or mucus. The circular wound diminishes in size concentrically. The standardized wound model may be suitable for comparison of different therapeutic methods of wound care. PMID:2030086

Hosemann, W; Göde, U; Länger, F; Röckelein, G; Wigand, M E

1991-01-01

149

[Experimental studies of wound healing in the paranasal sinuses. I. A model of respiratory wounds in the rabbit maxillary sinus  

UK PubMed Central (United Kingdom)

We present an animal model in rabbits for the investigation of normal wound healing in the paranasal sinuses. The blood and lymphatic stream and the mucociliary pathways are demonstrated on the medial maxillary sinus wall to study the influence on wound geometry. Standardized and circular wounds are created in the same area exposing the underlying bone of the maxillary sinus. Using a computer aided system for 3-D-reconstruction, it can be shown that respiratory wound closure is independent of the stream of blood, lymph or mucus. The circular wound diminishes in size concentrically. The standardized wound model may be suitable for comparison of different therapeutic methods of wound care.

Hosemann W; Göde U; Länger F; Röckelein G; Wigand ME

1991-01-01

150

[An anatomical study of maxillary sinus septum of Han population in Jiangsu region using cone-beam CT].  

UK PubMed Central (United Kingdom)

PURPOSE: To examine the anatomical variation of maxillary sinus septum of Han nationality in Jiangsu region by using cone-beam computed tomography (CBCT) combined with Simplant software in order to provide anatomical basis and operation instruction for oral implants after maxillary sinus lifting. METHODS: CBCT image data were collected from 424 patients for analysis of maxillary sinus septa. Digital imaging and communications in medicine (Dicom) image files were fed into the computer-aided Simplant software and used to analyze the prevalence, location, height, orientation, and morphology of maxillary sinus septa through three-dimensional reconstruction. The data was analyzed with SPSS17.0 software package. RESULTS: The proportion of the occurrence of maxillary sinus septa in 424 subjects was 44.81% and 21.23% of the subjects (n=90) had multiple sinus septa, while 20.52% had bilateral sinus septa (n=87). Totally 848 maxillary sinuses were observed in this study and 277 sinuses had septa with a proportion of 32.67%. The prevalence of septa was not significantly related to gender, age, and the presence or absence of teeth. Septa were located most frequently in the middle of maxillary sinus (59.94%). The mean height of sinus septa was (5.90±3.65) mm and (5.54±2.87) mm in the right and left maxillary sinus, respectively. The mean length of sinus septa was (8.15±2.40) mm and (7.88±2.73) mm in the right and left maxillary sinus, respectively. CONCLUSIONS: Nearly 44.81% of Han population in Jiangsu region have maxillary sinus septa. The CBCT imaging technique can provide comprehensive and accurate quantitative analysis of maxillary sinus septa and is meaningful to provide anatomical basis and clinical guidance before sinus augmentation procedures.

Li J; Zhou ZX; Yuan ZY; Yuan H; Sun C; Chen N

2013-02-01

151

Quantification of airflow into the maxillary sinuses before and after functional endoscopic sinus surgery.  

UK PubMed Central (United Kingdom)

BACKGROUND: The effects of increases in maxillary sinus (MS) airflow following functional endoscopic sinus surgery (FESS) are unknown. The goal of this study was to quantify the effects of FESS on airflow into the MS in a cohort of patients with chronic rhinosinusitis, and compare MS flow rate with patient-reported outcome measures. METHODS: A pilot study was conducted in which preoperative and postoperative computed tomography scans of 4 patients undergoing bilateral or unilateral FESS were used to create 3-dimensional (3D) reconstructions of the nasal airway and paranasal sinuses using Mimics™ (Materialise, Inc.). The size of the maxillary antrostomies post-FESS ranged from 107 to 160 mm(2) . Computational meshes were generated from the 3D reconstructions, and steady-state, laminar, inspiratory airflow was simulated in each mesh using the computational fluid dynamics (CFD) software Fluent™ (ANSYS, Inc.) under physiologic, pressure-driven conditions. Airflow into the MS was estimated from the simulations and was compared preoperatively and postoperatively. In addition, patients completed preoperative and postoperative Rhinosinusitis Outcome Measure-31 (RSOM-31) questionnaires and scores were compared with MS airflow rates. RESULTS: CFD simulations predicted that average airflow rate into post-FESS MS increased by 18.5 mL/second, and that average flow velocity into the MS more than quadrupled. Simulation results also showed that MS flow rate trended with total RSOM-31 and all domain scores. CONCLUSION: CFD simulations showed that the healed maxillary antrostomy after FESS can greatly enhance airflow into the MS. Our pilot study suggests that to some extent, increasing airflow into the MS may potentially improve chronic rhinosinusitis patients' quality of life pre-FESS and post-FESS.

Frank DO; Zanation AM; Dhandha VH; McKinney KA; Fleischman GM; Ebert CS Jr; Senior BA; Kimbell JS

2013-09-01

152

METHOD FOR TREATING PATIENTS FOR ODONTOGENOUS MAXILLARY SINUSITIS WITH OROANTRAL FISTULA  

UK PubMed Central (United Kingdom)

FIELD: medicine. ^ SUBSTANCE: method involves administering Metrogyl-denta gel into the maxillary sinus to achieve tight contact with its walls and fistula passage obturation. Then the preparation is treated with laser radiation via hard palate mucous membrane and maxillary sinus projection through skin in the vicinity of anterior sinus wall. Infrared laser radiation of 0.85 mcm wavelength and output power of 10-12 mW is applied during 5-10 min to each field. The total treatment course is 3-7 procedures long applied every other day. ^ EFFECT: clearing sinus from microbial agents in accelerated mode.

NIKITIN A A; GERASIMENKO M JU; FILATOVA E V; SIPKIN A M; KOSJAKOV M N

153

Modified endoscopic maxillary medial sinusotomy for sinonasal inverted papilloma with attachment to the anterior medial wall of maxillary sinus.  

UK PubMed Central (United Kingdom)

OBJECTIVES: The endoscopic management of inverted papilloma (IP) has gained in popularity over the last 15 years. However, the appropriate management of lesions involving the anterior medial wall of the maxillary sinus still has to be determined. METHODS: We performed a retrospective review of the surgical results for patients with IP attached to the anterior medial wall of the maxillary sinus in the Otolaryngology, Head and Neck Surgery Department, Beijing TongRen Hospital. The tumors were removed by using our surgical technique of modified endoscopic maxillary medial sinusotomy, which was defined as an extended endoscopic medial maxillectomy with preservation of the nasolacrimal duct and inferior turbinate. Sinus endoscopy was used to screen for disease after endoscopic resection and the clinical outcomes were analyzed. RESULTS: A total of 7 patients (4 males and 3 females) were identified. Pre- and postoperative pathological examinations revealed inverted papilloma as the diagnosis. All tumors were defined as Krouse III lesions. There were no complications recorded as a result of surgery. All patients remain disease free with a mean follow-up of 35.7 months (range 20-68 months). CONCLUSION: Sinonasal IP with attachment to the anterior medial portion of the maxillary sinus can be treated successfully using modified endoscopic maxillary medial sinusotomy with preservation of the nasolacrimal duct and inferior turbinate.

Wang C; Han D; Zhang L

2012-01-01

154

[Giant cementifying fibroma of the maxillary sinus. Apropos of a case  

UK PubMed Central (United Kingdom)

The case of a patient presenting with a gigantiform fibrous cementoma of the maxillary sinus is described. The diagnostic, the treatment and the histologic classification of the cementifying tumours is reviewed in light of the present literature.

Bouton V; Bourry M; Durand M; Sanson J

1994-01-01

155

Radiographic study on maxillary sinus development and nasal septum deviation in cleft palate patient  

Energy Technology Data Exchange (ETDEWEB)

This study was designed to investigate the effects of the maxillary sinus development and nasal septum deviation on diseases of maxillary sinus with cleft palate. The materials was 152 cephalometric Waters' projections consist of 76 cleft patients and 76 normal subjects. The results were as follows: 1. The disease of maxillary sinus was present in 49% of a cleft group and 14% of a control group, and prevalent in cleft side. 2. It showed no statistically significant difference in size of the maxillary sinus in cleft palate patients compared to the control population and in the cleft side to the noncleft side (p<0.05). 3. Nasal septum deviation was more severe in the cleft patient its average value was 3.55mm, compared to the control group, 0.99 mm (p<0.01) and 77% of the deviated nasal septum was deviated to the cleft side.

Lee, Sam Sun; You, Dong Soo [Dept. of Oral Radiology, College of Dentistry, Seoul National University, Seoul (Korea, Republic of)

1992-08-15

156

A study of geometrical theory for maxillary sinus projection in children  

Energy Technology Data Exchange (ETDEWEB)

This study is to evaluate the individual angulation on maxillary sinus projection and establishing angulation in children by new geometrical method. There were two groups, which are 60 cases in children (ranged from 1yr to 3yrs, 3yrs to 8yrs, 8yrs to 12yrs) and 50 cases in adults. We analyzed the true lateral maxillary sinus film of total 110 patients using new geometrical method. We demonstrated an angle of maxillary sinus projection. Arithmetical it is not valid during development of facial bone in childhood. The individual range of angulation according to age was that 1yr to 3yrs is 50-47 degrees, 3yrs to 8yrs is 47-40 degrees, 8yrs to 12yrs is 40-38 degrees. This geometrical method will be useful in establishing angulation for maxillary sinus projection.

Jeon, Heung Kyu; Kwon, Young Ho; Lee, Byung Je [Tongdaemoon Hospital, Ewha Womans Univ., Seoul (Korea, Republic of)

1997-02-01

157

A study of geometrical theory for maxillary sinus projection in children  

International Nuclear Information System (INIS)

This study is to evaluate the individual angulation on maxillary sinus projection and establishing angulation in children by new geometrical method. There were two groups, which are 60 cases in children (ranged from 1yr to 3yrs, 3yrs to 8yrs, 8yrs to 12yrs) and 50 cases in adults. We analyzed the true lateral maxillary sinus film of total 110 patients using new geometrical method. We demonstrated an angle of maxillary sinus projection. Arithmetical it is not valid during development of facial bone in childhood. The individual range of angulation according to age was that 1yr to 3yrs is 50-47 degrees, 3yrs to 8yrs is 47-40 degrees, 8yrs to 12yrs is 40-38 degrees. This geometrical method will be useful in establishing angulation for maxillary sinus projection.

1997-01-01

158

Penetration of prulifloxacin into sinus mucosa of patients undergoing paranasal sinus elective endoscopic surgery.  

UK PubMed Central (United Kingdom)

The aim of this study was to assess the concentration of ulifloxacin, the active metabolite of prulifloxacin, in sinuses mucosa and plasma of patients with chronic rhinosinusitis, requiring sinus elective endoscopic surgery. Thirty-nine patients (30 males, 9 females; age range 22-77 years) with chronic sinusitis were enrolled, 35 were treated with the investigational medication. Samples from four untreated patients were used to validate the analytical method, while four treated patients dropped out before surgery. One 600 mg prulifloxacin tablet once daily was administered for 5 days before surgery. The last dosing was scheduled from 2 to 12 hours from tissue and plasma sampling. In each patient, two samples of paranasal sinus mucosa (from ethmoid and turbinate, respectively) and one blood sample were collected. Concentrations of ulifloxacin in plasma and sinuses mucosa were measured using validated bioanalytical LC/MS/MS methods. Individual and mean ulifloxacin concentrations in tissues were always higher than the relevant plasma levels. The highest concentrations were observed between 2.5 and 4.5 hours after the last dosing in all districts. The mean tissue/plasma ratios were 2.5 and 3.0 for ethmoid and turbinate, respectively. Data expressed as Area Under the Curves (AUC±SD) showed that ulifloxacin concentrations in the ethmoid were slightly higher (18.68±6.48 ?g/g*h) than in turbinate (15.00±2.89 ?g/g*h), and definitely higher than in plasma (6.32±1.14 ?g/ml*h). The AUC ratios between tissues and plasma were 3.0 for ethmoides and 2.4 for turbinates. One patient reported two treatment-related episodes of diarrhea, which spontaneously resolved after the drug suspension. Results from this study seem to suggest that prulifloxacin showed good distribution in sinus tissues, where it reaches concentrations significantly higher than in plasma. These findings strongly call for confirmatory clinical trials in patients with bacterial rhinosinusitis.

De Benedetto M; Passali D; Tomacelli G; Ruggieri A; Rosignoli MT; Picollo R; Bellussi L; Dionisio P

2012-02-01

159

Penetration of prulifloxacin into sinus mucosa of patients undergoing paranasal sinus elective endoscopic surgery.  

Science.gov (United States)

The aim of this study was to assess the concentration of ulifloxacin, the active metabolite of prulifloxacin, in sinuses mucosa and plasma of patients with chronic rhinosinusitis, requiring sinus elective endoscopic surgery. Thirty-nine patients (30 males, 9 females; age range 22-77 years) with chronic sinusitis were enrolled, 35 were treated with the investigational medication. Samples from four untreated patients were used to validate the analytical method, while four treated patients dropped out before surgery. One 600 mg prulifloxacin tablet once daily was administered for 5 days before surgery. The last dosing was scheduled from 2 to 12 hours from tissue and plasma sampling. In each patient, two samples of paranasal sinus mucosa (from ethmoid and turbinate, respectively) and one blood sample were collected. Concentrations of ulifloxacin in plasma and sinuses mucosa were measured using validated bioanalytical LC/MS/MS methods. Individual and mean ulifloxacin concentrations in tissues were always higher than the relevant plasma levels. The highest concentrations were observed between 2.5 and 4.5 hours after the last dosing in all districts. The mean tissue/plasma ratios were 2.5 and 3.0 for ethmoid and turbinate, respectively. Data expressed as Area Under the Curves (AUC±SD) showed that ulifloxacin concentrations in the ethmoid were slightly higher (18.68±6.48 ?g/g*h) than in turbinate (15.00±2.89 ?g/g*h), and definitely higher than in plasma (6.32±1.14 ?g/ml*h). The AUC ratios between tissues and plasma were 3.0 for ethmoides and 2.4 for turbinates. One patient reported two treatment-related episodes of diarrhea, which spontaneously resolved after the drug suspension. Results from this study seem to suggest that prulifloxacin showed good distribution in sinus tissues, where it reaches concentrations significantly higher than in plasma. These findings strongly call for confirmatory clinical trials in patients with bacterial rhinosinusitis. PMID:22546721

De Benedetto, Michele; Passali, Desiderio; Tomacelli, Giovanni; Ruggieri, Alessandro; Rosignoli, Maria Teresa; Picollo, Rossella; Bellussi, Luisa; Dionisio, Paolo

2012-02-01

160

A radiographic study of the experimental lesions in the maxillary sinus  

International Nuclear Information System (INIS)

The purpose of this study was to examine the differences in representation of a globular radiopaque mass on the pantomograms and Waters' views and to compare the efficacy of periapical radiograms, pantomograms and Waters' views in detection of defects on the internal walls of the maxillary sinus. This study was performed with dried human skull. For the study of difference of radiopaque mass shadow in the two views, rubber ball with a diameter of 10mm was used as the experimental lesion. It was placed successively on the internal wall of the anterior, posterior, medial, lateral walls and floor of the maxillary sinus. To examine the detectability of defects for radiographic techniques, defects were formed in the anterior, posterior, medial, lateral walls, and floor of the maxillary sinus. They were formed with 0.5 mm, 0.75 mm, 1.0 mm, 2.0 mm and 3.0 mm sized steel round burs with a slow speed dental handpiece. By subsequently plugging the holes with zinc oxide eugenol paste, radiopaque defects were produced. After that the periapical radiograms, the pantomograms and the Waters' views were taken each and every defect. The obtained results were as follows: 1. Rubber balls placed on each internal wall of maxillary sinus were correctly depicted on the posterior wall and the floor in case of the pantomogram, and on the anterior wall and the medial wall in case of the Waters' view. 2. On the detectability of defects for each radiographic technique, radiolucent defects were detected in different places of each technique. Periapical radiogram could detect 1.0 mm defect on the floor of the maxillary sinus, pantomogram could detect 2.0 mm defect on every internal wall of the maxillary sinus, and Waters' view could detect 3.0 mm defect on the anterior wall of the maxillary sinus. 3. On the detectability of defects for each radiographic technique, radiopaque defects were detected in different places for each technique. Periapical radiogram could clearly detect 0.5 mm defect on the floor of the maxillary sinus, pantomogram could detect 0.5 mm defect on every internal wall of the maxillary sinus, and finally Waters' view could detect 0.5 mm defect on the anterior wall of the maxillary sinus but 0.75 mm defect on the anterior wall, lateral wall, lateral wall and floor of the maxillary sinus. As the result, the periapical radiogram is the most simple and satisfactory method for investigating in the maxillary sinus. The pantomogram is suitable method for screening of changes in the maxillary sinus. And the Waters' view is available for detect of lesion in the anterior wall of the maxillary sinus. For the purpose of accurate diagnosis and evaluation of lesion in the maxillary sinus, these techniques supplement each other.

1994-01-01

 
 
 
 
161

A radiologic study the maxillary sinusitis as seen by waters' and specialized panoramic projections  

International Nuclear Information System (INIS)

The purpose of this study was to evaluate the specialized Orthopantomograms and standard films compared with Water s' views in the diagnosis of maxillary sinusitis. The author analysed the types of mucosal thickening, the types of bony wall change, the relation between the types of chief complaints and mucosal thickening on the Waters' views of 156 patients with 206 maxillary sinuses demonstrating radiographic changes. And the pathologic change of antral floor was observed on 187 standard at 156 specialized Orthopantomogams and 187 standard films. The results were obtained as followings. 1. Among 206 mucosal thickening classified by 6 types, generalized increased radiopacity was 69 cases (33.5%) and the entire thickening of mucosa except an ostium area was 66 cases (32.0%). 2. The bony wall change was seen in 128 cases (62.1%) and the incidence of indistinct antral wall was the highest as 55 cases (43.0%) among 5 types. 3. Among 148 chief complaints, pain was 71 cases (48.0%), swelling was 19 cases (12.8%) and discomfort was 18 cases (12.2%). 4. The most frequent change of antral floor was indistinct antral floor as 25 cases (13.4%) and elevation of antral floor was 23 cases (12.3%). 5. In 156 specialized Orthopantomograms, 101 cases (49.0%) presented apparent increased radiopacity and 72 cases (35.0%) showed suspicious increased radiopacity in comparison with Waters' view. In 187 standard films, 47 cases (25.1%) presented apparent increased radiopacity and 53 cases (28.4%) showed suspicious increased radiopacity in comparison with Waters' view.

1987-01-01

162

A case report of an inverted papilloma infiltrating into maxillary sinus  

International Nuclear Information System (INIS)

The present study reports a case of inverted papilloma of the nasal cavity and infiltrating into the maxillary sinus. Inverted papilloma is an uncommon and locally aggressive benign tumor of the sinonasal region. The patient, 51-year-old male, presented with unilateral nasal obstruction and periodic swelling on the palate without pain. Enhanced CT scan revealed a heterogeneously enhancing solid mass in the nasal cavity and infiltrating into the right maxillary sinus, as well as an incidental, secondarily infected residual cyst in the periapical area of the right maxillary canine. The sinonasal mass was revealed as an inverted papilloma on histopathologic examination.

2009-01-01

163

A case report of an inverted papilloma infiltrating into maxillary sinus  

Energy Technology Data Exchange (ETDEWEB)

The present study reports a case of inverted papilloma of the nasal cavity and infiltrating into the maxillary sinus. Inverted papilloma is an uncommon and locally aggressive benign tumor of the sinonasal region. The patient, 51-year-old male, presented with unilateral nasal obstruction and periodic swelling on the palate without pain. Enhanced CT scan revealed a heterogeneously enhancing solid mass in the nasal cavity and infiltrating into the right maxillary sinus, as well as an incidental, secondarily infected residual cyst in the periapical area of the right maxillary canine. The sinonasal mass was revealed as an inverted papilloma on histopathologic examination.

Ji, Yong Hwa; Choi, Bo Ram; Huh, Kyung Hoe; Lee, Sam Sun [School of Dentistry, Seoul National University, Seoul (Korea, Republic of); An, Chang Hyeon [Department of Oral and Maxillofacial Radiology, School of Dentistry, Kyungpook National University, Daegu (Korea, Republic of)

2009-06-15

164

Computed tomographic assessment of maxillary sinus wall thickness in edentulous patients.  

UK PubMed Central (United Kingdom)

Posterior maxillary region is considered to be the most challenging area for dental implant placement. Lateral window opening is the gold standard procedure for maxillary sinus augmentation in this area. The purpose of this study is to evaluate lateral wall thickness of the maxillary sinus for sinus augmentation using computed tomography (CT) in edentulous patients. Computed tomography images of 302 patients were analysed. Using the maxillary sinus floor as the reference point in edentulous regions, lateral wall thickness was measured on CT scans. After drawing a tangent line at the lowest point of the sinus floor, another perpendicular line to the tangent line was drawn at the same point of the sinus floor. Thickness of the lateral wall of the maxillary sinus was measured using 10DR implant software at 3 (R1), 10 (R2) and 15 mm (R3) from the sinus floor. The mean thickness of the lateral wall of the maxillary sinus from the first premolar to second molar was 1·69 ± 0·71, 1·50 ± 0·72, 1·77 ± 0·78 and 1·89 ± 0·85 mm, respectively. The thickness differed significantly at the R2 and R3 points. Women had thinner lateral walls at the R1 and R2 points at the premolars than did men. At the R2 and R3 points at the second premolar, the mean thickness of smokers was larger than that of non-smokers. There were no significant differences on age or reasons for tooth loss. The changes in the thickness of the lateral wall at different reference points were observed, and CT examinations may help make lateral window without membrane perforation.

Yang SM; Park SI; Kye SB; Shin SY

2012-06-01

165

Computed tomographic assessment of maxillary sinus wall thickness in edentulous patients.  

Science.gov (United States)

Posterior maxillary region is considered to be the most challenging area for dental implant placement. Lateral window opening is the gold standard procedure for maxillary sinus augmentation in this area. The purpose of this study is to evaluate lateral wall thickness of the maxillary sinus for sinus augmentation using computed tomography (CT) in edentulous patients. Computed tomography images of 302 patients were analysed. Using the maxillary sinus floor as the reference point in edentulous regions, lateral wall thickness was measured on CT scans. After drawing a tangent line at the lowest point of the sinus floor, another perpendicular line to the tangent line was drawn at the same point of the sinus floor. Thickness of the lateral wall of the maxillary sinus was measured using 10DR implant software at 3 (R1), 10 (R2) and 15 mm (R3) from the sinus floor. The mean thickness of the lateral wall of the maxillary sinus from the first premolar to second molar was 1·69 ± 0·71, 1·50 ± 0·72, 1·77 ± 0·78 and 1·89 ± 0·85 mm, respectively. The thickness differed significantly at the R2 and R3 points. Women had thinner lateral walls at the R1 and R2 points at the premolars than did men. At the R2 and R3 points at the second premolar, the mean thickness of smokers was larger than that of non-smokers. There were no significant differences on age or reasons for tooth loss. The changes in the thickness of the lateral wall at different reference points were observed, and CT examinations may help make lateral window without membrane perforation. PMID:22471834

Yang, S-M; Park, S-I; Kye, S-B; Shin, S-Y

2012-04-03

166

Organised haematoma of the maxillary sinus: pathophysiological differences suggesting a new aetiological hypothesis.  

UK PubMed Central (United Kingdom)

BACKGROUND AND OBJECTIVES: Organised haematomas of the maxillary sinus are rare, non-neoplastic, haemorrhagic lesions which can extend into the nasal cavity and/or the other paranasal sinuses. This study aimed to investigate the pathology of maxillary sinus organised haematoma, and also proposes a new aetiological hypothesis based on the observed pathology. METHODS: Biopsies, computed tomography, magnetic resonance imaging and post-surgical histopathological examination of resected specimens were carried out. CONCLUSION: Distinct pathological differences were observed between the basal and peripheral portions of organised haematomas. We propose that an organised haematoma originates from the exudation of blood components between vascular endothelial cells. As a result, the basal portion consists of aggregated, dilated vessels around the natural ostium of the maxillary sinus. In addition, pseudovessels, without endothelial cells, arise from endocapillary vessels within the haematoma. Exudation of additional blood components from the pseudovessels advances the growth of the organised haematoma.

Urata S; Ohki M; Tsutsumi T; Kikuchi S

2013-05-01

167

Comparison of panoramic radiography and cone beam computed tomography for assessing the relationship between the maxillary sinus floor and maxillary molars  

Energy Technology Data Exchange (ETDEWEB)

This study compared panoramic radiography and cone beam computed tomography (CBCT) for evaluating the relationship between the maxillary sinus floor and the roots of maxillary molars. Paired panoramic radiographs and CBCT images from 97 subjects were analysed. This analysis classified 388 maxillary molars according to their relationship to the maxillary sinus floor on panoramic radiograph and CBCT. Correlations between these two radiographic techniques were examined. Maxillary molar roots that were separate from the sinus floor showed the same classification in 100% of the cases when using these two imaging techniques. The corresponding percentage for such roots that were in contact with the sinus floor was 75%. When roots overlapped the maxillary sinus floor on panoramic radiographs, only 26.4% of maxillary first molars and 60.0% of second molars showed protrusion of roots into the sinus with CBCT. The results of the study suggest that roots projecting into the sinus on panoramic radiographs require a three-dimensional image in order to analyze the proximity of their apex to the sinus floor.

Jun, Yun Hoa; Cho, Bong Hae [Department of Oral and Maxillofacial Radiology, College of Dentistry, Pusan National University, Pusan (Korea, Republic of)

2009-06-15

168

The prevalence of concha bullosa and nasal septal deviation and their relationship to maxillary sinusitis by volumetric tomography.  

UK PubMed Central (United Kingdom)

The objective of this study was to determine the prevalence of concha bullosa and nasal septal deviation and their potential relationships to maxillary sinusitis. 883 CT scans taken at Creighton University School of Dentistry from 2005 to 2008 were retrospectively reviewed for the presence of concha bullosa, nasal septal deviation, and maxillary sinusitis. 67.5% of patients exhibited pneumatization of at least one concha, 19.4% of patients had a deviated septum, and 50.0% had mucosal thickening consistent with maxillary sinusitis. 49.3% of patients who had concha bullosa also had evidence of maxillary sinusitis. Only 19.5% of patients with concha bullosa also had nasal septal deviation, whereas 19.7% of patients with sinusitis also presented with nasal septal deviation. Although concha bullosa is a common occurrence in the nasal cavity, there did not appear to be a statistically significant relationship between the presence of concha bullosa or nasal septal deviation and maxillary sinusitis.

Smith KD; Edwards PC; Saini TS; Norton NS

2010-01-01

169

Myxoid Type of Malignant Fibrous Histiocytoma of the Maxillary Sinus: A Case Report  

Directory of Open Access Journals (Sweden)

Full Text Available Introduction: Myxofibrosarcoma was originally described as the myxoid variant of Malignant Fibrous Histiocytoma (MFH), a high-grade and aggressive sarcoma, which is very uncommon in the head and neck region, with about 100 cases reported up to now. MFH occurring in the maxillary sinus is so rare that only 23 cases have been reported. We hereby report a case of myxofibrosarcoma in the maxillary sinus. Case Report: The case was a 54-year-old male with symptoms of toothache in the right posterior maxillary teeth, a swelling adjacent to maxillary molar region and symptoms of chronic maxillary sinusitis. In clinical examination, the teeth were sensitive to percussion and palpation, but no caries and restoration was detected on his molar teeth. He was suffering from local pain and tenderness over his midface and mild fever, fatigue and some nonspecific vague pain. CT scan showed a mass lesion involving right nasal cavity, maxillary and ethmoidal sinuses. A low-grade malignancy arising from the right maxillary sinus was highly suspected. A surgery was done to remove the mass. The histological and immunohistochemical studies proved the diagnosis of myxoid variant of Malignant Fibrous Histiocytoma. Therefore radiotherapy and chemotherapy was started for the patient but six months later the symptoms returned and CT scan showed a right maxillary and ethmoidal mass that extended to base of the skull. Maxillectomy and ethmoidectomy were performed for the patient, but 2 months later he died because of the extension of the tumor, which confirmed the necessity of early diagnosis. Conclusion: Amplified radical surgery is the first choice of treatment. The second surgery has special value to the recurrent patients. Radiotherapy alone or chemotherapy alone is not effective to MFH of head and neck region

Amir Hossein Jafarian; Abbas Ali Omidi; Mohammad Mehdi Ghasemi; Bahareh Joushan

2011-01-01

170

Virtual planning and construction of prototyped surgical guide in implant surgery with maxillary sinus bone graft  

Scientific Electronic Library Online (English)

Full Text Available Abstract in english PURPOSE: To evaluate the efficacy of associating techniques of bone grafting in the maxillary sinus with the use of a prototyped surgical guide for planning and positioning dental implants in total edentulous maxillae, rehabilitated after six months. METHODS: Eight patients consecutives with totally edentulous maxilla presenting few remaining bone in the posterior alveolar ridge, associated with pneumatization of the maxillary sinus were selected. Twenty eight Brånemark (more) RP 10mm implants were installed in 14 maxillary sinuses. The surgical planning for the implant installation was performed with the DentalSlice software by means of a computerized tomography. The obtained images were used for building a surgical guide that, placed over the maxilla, showed the exact position for the implants installation (prototyped surgical guide). The portion of the implants that went into the maxillary sinus was covered by an autogenous bone graft. RESULTS: The patients were re-evaluated six months after the surgery and a 100% success rate was achieved. All of the implants presented no mobility or symptoms, permitting an oral rehabilitation with total fixed screw-retained prosthesis over the implants. CONCLUSION: The technique of associating implants and bone graft in the maxillary sinus aided by a prototyped guide planned on DentalSlice has showed itself efficient for positioning implants and for quantifying and locating the bone graft.

Martins, Renato Jahjah Cunha; Lederman, Henrique Manoel

2013-09-01

171

Photodynamic therapy of antibiotic-resistant biofilms in a maxillary sinus model.  

UK PubMed Central (United Kingdom)

BACKGROUND: Chronic rhinosinusitis (CRS) is one of the most common chronic conditions in the United States. There is a significant subpopulation of CRS patients who remain resistant to cure despite rigorous treatment regimens including surgery, allergy therapy, and prolonged antibiotic therapy. Antimicrobial photodynamic therapy (aPDT) is a noninvasive nonantibiotic broad spectrum antimicrobial treatment. Our previous in vitro studies demonstrated that aPDT reduced CRS polymicrobial planktonic bacteria and fungi by >99.9% after a single treatment. However, prior to human treatment, the effectiveness of aPDT to eradicate polymicrobial biofilms in a maxillary sinus cavity must be demonstrated. The objective of this study was to demonstrate the effectiveness of a noninvasive aPDT treatment of antibiotic resistant biofilms known to cause CRS in a novel anatomically correct maxillary sinus in vitro model using an enhanced photosensitizer solution. METHODS: Antibiotic resistant polymicrobial biofilms of Pseudomonas aeruginosa and methicillin-resistant Staphylococcus aureus (MRSA) were grown in an anatomically correct novel maxillary sinus model and treated with a methylene blue/ethylenediamine tetraacetic acid (EDTA) photosensitizer and 670-nm nonthermal activating light. Cultures of the biofilms were obtained before and after light treatment to determine efficacy of biofilm reduction. RESULTS: The in vitro maxillary sinus CRS biofilm study demonstrated that aPDT reduced the CRS polymicrobial biofilm by >99.99% after a single treatment. CONCLUSION: aPDT can effectively treat CRS polymicrobial antibiotic resistant Pseudomonas aeruginosa and MRSA biofilms in a maxillary sinus cavity model.

Biel MA; Pedigo L; Gibbs A; Loebel N

2013-06-01

172

Virtual planning and construction of prototyped surgical guide in implant surgery with maxillary sinus bone graft.  

UK PubMed Central (United Kingdom)

PURPOSE: To evaluate the efficacy of associating techniques of bone grafting in the maxillary sinus with the use of a prototyped surgical guide for planning and positioning dental implants in total edentulous maxillae, rehabilitated after six months. METHODS: Eight patients consecutives with totally edentulous maxilla presenting few remaining bone in the posterior alveolar ridge, associated with pneumatization of the maxillary sinus were selected. Twenty eight Brånemark RP 10mm implants were installed in 14 maxillary sinuses. The surgical planning for the implant installation was performed with the DentalSlice software by means of a computerized tomography. The obtained images were used for building a surgical guide that, placed over the maxilla, showed the exact position for the implants installation (prototyped surgical guide). The portion of the implants that went into the maxillary sinus was covered by an autogenous bone graft. RESULTS: The patients were re-evaluated six months after the surgery and a 100% success rate was achieved. All of the implants presented no mobility or symptoms, permitting an oral rehabilitation with total fixed screw-retained prosthesis over the implants. CONCLUSION: The technique of associating implants and bone graft in the maxillary sinus aided by a prototyped guide planned on DentalSlice has showed itself efficient for positioning implants and for quantifying and locating the bone graft.

Martins RJ; Lederman HM

2013-09-01

173

Loss of Pulp Vitality Following Maxillary Sinus Augmentation. A Surgical and Endodontic Approach.  

UK PubMed Central (United Kingdom)

Background: Maxillary sinus augmentation is a routine procedure performed in implant dentistry in cases with sinus pneumatization. This article presents a series of clinical cases in which tooth devitalization occurred in conjunction with sinus augmentation. Methods: In the three cases presented, a sinus lift procedure was performed that resulted in devitalization of the adjacent teeth. Patients were referred to an endodontist for evaluation and treatment. Vitality of the teeth was determined by the use of a cold test, electric pulp test, and cavity test. The pulp was considered to be necrotic if the tests were negative. Results: In this case series, loss of pulp vitality of two maxillary left second premolars and one maxillary left first molar occurred after sinus augmentation procedures. The devitalized teeth were free of any caries. In one case, two amalgam restorations were present. Conclusions: Pulp necrosis may occur in conjunction with a sinus lift procedure in cases when an adjacent root is in close proximity to the sinus floor and the sinus membrane is elevated over the root apex.

Romanos GE; Papadimitriou DE; Hoyo MJ; Caton JG

2013-06-01

174

Absceso cerebral como complicación de sinusitis maxilar Brain abscess as a complication of maxillary sinusitis  

Directory of Open Access Journals (Sweden)

Full Text Available El absceso cerebral es una infección infrecuente en el niño, pero puede ser muy grave con riesgo para la vida aun con los avances diagnósticos y terapéuticos disponibles. Su presentación clínica varía en dependencia de la localización, y el diagnóstico requiere un alto índice de presunción, ya que puede presentarse como complicación de procesos infecciosos frecuentes en la infancia. Se presenta el caso de una paciente de 5 años de edad, con un absceso cerebral frontal, secundario a sinusitis maxilar. Se describen las manifestaciones clínicas, resultados de exámenes complementarios y tratamiento.Brain abscess is an uncommon infection in the child, but it may represent a very serious life-threatening risk even if many diagnostic and therapeutic advances are available. Its clinical presentation depends on location and the diagnosis requires a lot of presumption since it may also appear as a complication of frequent infectious processes in the childhood. This is the case of 5 years-old girl suffering frontal brain abscess secondary to maxillary sinusitis. The clinical manifestations, the results of supplementary tests and of the treatment were described.

Karen Vanessa Alvayero Mejía; Carlos Marques de Carvalho; Aixa Martínez Romero; María del Carmen Luis Álvarez; Odette Pantoja Pereda; Dayamí Benítez Rodríguez

2012-01-01

175

Absceso cerebral como complicación de sinusitis maxilar/ Brain abscess as a complication of maxillary sinusitis  

Scientific Electronic Library Online (English)

Full Text Available Abstract in spanish El absceso cerebral es una infección infrecuente en el niño, pero puede ser muy grave con riesgo para la vida aun con los avances diagnósticos y terapéuticos disponibles. Su presentación clínica varía en dependencia de la localización, y el diagnóstico requiere un alto índice de presunción, ya que puede presentarse como complicación de procesos infecciosos frecuentes en la infancia. Se presenta el caso de una paciente de 5 años de edad, con un absceso cerebra (more) l frontal, secundario a sinusitis maxilar. Se describen las manifestaciones clínicas, resultados de exámenes complementarios y tratamiento. Abstract in english Brain abscess is an uncommon infection in the child, but it may represent a very serious life-threatening risk even if many diagnostic and therapeutic advances are available. Its clinical presentation depends on location and the diagnosis requires a lot of presumption since it may also appear as a complication of frequent infectious processes in the childhood. This is the case of 5 years-old girl suffering frontal brain abscess secondary to maxillary sinusitis. The clinical manifestations, the results of supplementary tests and of the treatment were described.

Alvayero Mejía, Karen Vanessa; Marques de Carvalho, Carlos; Martínez Romero, Aixa; Luis Álvarez, María del Carmen; Pantoja Pereda, Odette; Benítez Rodríguez, Dayamí

2012-12-01

176

A radiographic study on the morphology of the maxillary sinus in adolescents and adults  

International Nuclear Information System (INIS)

The purpose of this study was radiographic analysis of the morphology of maxillary sinus in adolescents and adults. In order to analyze the morphology of maxillary sinus in view point of anteroposterior width of medial wall, vertical distance between antral floor and nasal floor level, anterior extension, distance between antral floor and maxillary 1st molar apex, and types of lower border of maxillary sinus, specialized maxillary projection and periapical view with paralleling technique was taken. The author examined orthopantomograms and intraoral standard views taken from 400 adolescents and adults ranged 15-65 years-old. The obtained results were as follows: 1. The antero-posterior width of medial wall of maxillary sinus was 32.80 mm in 15-19 year-old group, 33.86 mm in 20-24 year-old group, 34.09 mm in 25-29 year-old group, and 33.67 mm in 30-65 year-old group, and left maxillary sinus was somewhat smaller than the right. 2. The vertical distance between antral floor and nasal floor level was 8.49 mm in 15-19 year-old group, 9.05 mm i n 20-24 year-old group, 8.95 mm in 25-29 year-old group, and 8.32 mm in 30-65 year-old group. 3. The order of anterior extension of maxillary sinus were distal half of canine, mesial half of canine, mesial half of 1st premolar, and distal half of 1st premolar. 4. The distance between antral floor and maxillary 1st molar were 4.36 mm in 15-19 year-old group, 4.77 mm in 20-24 yea r-old group, 3.58 mm in 25-29 year-old group, and 2.33 mm in 30-65 year-old group. 5. The order of the types of lower border of maxillary sinus were entire downward type, close type, partially downward type, waving type, separating type, and indistinct. In the types of antral floor, there was a tendency to increase the separating type with age.

1984-01-01

177

A radiographic study on the morphology of the maxillary sinus in adolescents and adults  

Energy Technology Data Exchange (ETDEWEB)

The purpose of this study was radiographic analysis of the morphology of maxillary sinus in adolescents and adults. In order to analyze the morphology of maxillary sinus in view point of anteroposterior width of medial wall, vertical distance between antral floor and nasal floor level, anterior extension, distance between antral floor and maxillary 1st molar apex, and types of lower border of maxillary sinus, specialized maxillary projection and periapical view with paralleling technique was taken. The author examined orthopantomograms and intraoral standard views taken from 400 adolescents and adults ranged 15-65 years-old. The obtained results were as follows: 1. The antero-posterior width of medial wall of maxillary sinus was 32.80 mm in 15-19 year-old group, 33.86 mm in 20-24 year-old group, 34.09 mm in 25-29 year-old group, and 33.67 mm in 30-65 year-old group, and left maxillary sinus was somewhat smaller than the right. 2. The vertical distance between antral floor and nasal floor level was 8.49 mm in 15-19 year-old group, 9.05 mm i n 20-24 year-old group, 8.95 mm in 25-29 year-old group, and 8.32 mm in 30-65 year-old group. 3. The order of anterior extension of maxillary sinus were distal half of canine, mesial half of canine, mesial half of 1st premolar, and distal half of 1st premolar. 4. The distance between antral floor and maxillary 1st molar were 4.36 mm in 15-19 year-old group, 4.77 mm in 20-24 yea r-old group, 3.58 mm in 25-29 year-old group, and 2.33 mm in 30-65 year-old group. 5. The order of the types of lower border of maxillary sinus were entire downward type, close type, partially downward type, waving type, separating type, and indistinct. In the types of antral floor, there was a tendency to increase the separating type with age.

Ko, Kang Joon; Lee, Sang Rae [Department of Dental Radiology, Division of Dentistry, Kyung Hee University, Seoul (Korea, Republic of)

1984-11-15

178

The quantitative effect of an accessory ostium on ventilation of the maxillary sinus.  

Science.gov (United States)

The airflow and gas exchange behaviors of the human maxillary sinus were quantified to better understand the effect of an accessory ostium (AO). An anatomically correct numerical domain was constructed using CT data from a male patient with mild nasal obstruction. For the purpose of comparison, a numerical model without an AO was also generated by artificially removing the AO from the original model using CAD software. A steady-flow field through the nasal cavity was simulated using ANSYS-FLUENT v13.0 with a target flow rate of 250 ml/s. The Volume of Fluid (VOF) method was used to investigate the concentration field of nitric oxide (NO) initially filled in the maxillary sinus. The simulation results showed that a transit flow through the maxillary sinus developed in the presence of an AO. As the flow entered the sinus through either a natural or accessory ostium from the middle meatus, the velocity was significantly reduced to a local maximum of approximately 0.034 m/s inside the sinus. This by-pass flow rate through the sinus of 2.186×10(-1) to 3.591×10(-1) ml/s was a small fraction of the total flow rate inhaled from the nostril, but it effectively changed the local flow topology and led to a larger reduction in NO concentration in the maxillary sinus. This more rapid reduction in NO concentration was due to enhanced ventilation activity afforded by convective transport of the transit stream through the flow path connecting the natural ostium and the AO. The inspiration and expiration phases were qualitatively similar in flow pattern except for the flow direction in the maxillary sinus, suggesting that the AO plays a similar physiological role during both inspiration and expiration in terms of ventilation. PMID:22326723

Na, Yang; Kim, Kyunghun; Kim, Sung Kyun; Chung, Seung-Kyu

2012-02-03

179

[On the viscoelastic properties of the palatal mucosa analyzed for the displacement of maxillary complete denture  

UK PubMed Central (United Kingdom)

The condition of palatal mucosa caused by wearing a maxillary complete denture closely resembles a closed hydrostatic system. To clarify the viscoelastic properties of the palatal mucosa under such a condition, we measured as a function of the degree of denture displacement during biting movements. For this work, we developed three dimensional movement-measuring equipment. The following results were obtained: 1. The displacement of the maxillary complete denture during biting movements (loading and unloading of occlusal forces) could be approximated by an empirical formula of exponential function. This formula expressed the delayed elasticity characteristics of the viscoelasticity of the palatal mucosa. 2. Observation of the denture's displacement revealed that the movement of the palatal mucosa after occlusal forces are unloaded could be regarded as creep according to a Voigtian two-element model. 3. Denture displacement differed between occlusal force loading and unloading: dentures took longer to return to the original position during occlusal force unloading. 4. This time delay, indicating the degree of delayed elasticity of the palatal mucosa, was substantially shorter than the reported value based on local compression tests. Our study clearly shows that when a maxillary complete denture is worn, movement of the palatal mucosa approximates a closed system, and differs from localized open systems.

Hada M; Imai M; Ooishi A; Matsumoto N

1990-04-01

180

[On the viscoelastic properties of the palatal mucosa analyzed for the displacement of maxillary complete denture].  

Science.gov (United States)

The condition of palatal mucosa caused by wearing a maxillary complete denture closely resembles a closed hydrostatic system. To clarify the viscoelastic properties of the palatal mucosa under such a condition, we measured as a function of the degree of denture displacement during biting movements. For this work, we developed three dimensional movement-measuring equipment. The following results were obtained: 1. The displacement of the maxillary complete denture during biting movements (loading and unloading of occlusal forces) could be approximated by an empirical formula of exponential function. This formula expressed the delayed elasticity characteristics of the viscoelasticity of the palatal mucosa. 2. Observation of the denture's displacement revealed that the movement of the palatal mucosa after occlusal forces are unloaded could be regarded as creep according to a Voigtian two-element model. 3. Denture displacement differed between occlusal force loading and unloading: dentures took longer to return to the original position during occlusal force unloading. 4. This time delay, indicating the degree of delayed elasticity of the palatal mucosa, was substantially shorter than the reported value based on local compression tests. Our study clearly shows that when a maxillary complete denture is worn, movement of the palatal mucosa approximates a closed system, and differs from localized open systems. PMID:2134795

Hada, M; Imai, M; Ooishi, A; Matsumoto, N

1990-04-01

 
 
 
 
181

Possible value of nasal smear in acute maxillary sinusitis: an experimental study.  

UK PubMed Central (United Kingdom)

The aim of this study is to determine the role of nasal smear in evaluating diagnosis and response to the treatment by the patient of acute maxillary sinusitis. We compared nasal smear and histopathological findings obtained from rabbits experimentally induced acute maxillary sinusitis. The animals were divided into two groups; one with blocked ostium and treated with antibiotic and the other applied natural ostiotomy, during a 4-week period. There was no statistically significant difference between the two groups in respect of recovery period. This conclusion was derived from nasal smear and biopsy findings. It was observed that nasal smear and biopsy findings were consistent with each other and with clinical findings. The results of this study revealed that nasal smear may be used in the diagnosis and treatment follow-up of acute maxillary sinusitis.

Kutluhan A; Ugra? S; Berkta? M; Dilek HF; Akpolat N; Inalkaç E

1997-05-01

182

The effect of maxillary sinus irrigation on early prognostic factors after endoscopic sinus surgery: A preliminary study.  

UK PubMed Central (United Kingdom)

BACKGROUND: Sinus irrigation has been used to treat chronic rhinosinusitis refractory to medical and surgical treatments. The aim of this study was to evaluate the effect of maxillary sinus saline irrigation on the prevention of purulent rhinorrhea, extensive granulation formation, and polyp recurrence after endoscopic sinus surgery (ESS). METHODS: This prospective, controlled study was approved by the Institutional Review Board of Gachon University Gil Medical Center. Between August 1, 2011, and May 31, 2012, we recruited a total of 30 patients who underwent bilateral ESS. Group A was composed of 15 patients that were treated with bilateral maxillary sinus saline irrigation for 2 months after ESS. Group B was composed of 15 patients who were followed up during the same period after ESS. We checked for persistent purulent discharge, extensive granulation, and recurrent polyps in both groups to evaluate the effects of maxillary sinus irrigation on their prevention. RESULTS: Age, gender, and preoperative Lund-Mackay scores were not significantly different between the two groups (p > 0.05). In group A, one patient showed polyp recurrence. In group B, one patient showed extensive granulation tissue, two patients showed uncontrolled purulent discharge, three patients showed extensive granulation tissues and uncontrolled purulent discharge, and one patient showed recurrent polyps (p = 0.03). In addition, total endoscopic scores in the 3rd month were significantly different between groups A and B (p = 0.01). CONCLUSION: Maxillary sinus saline irrigation may be effective in the prevention of poor prognostic factors, such as persistent purulent discharge, at the early stages after ESS.

Kim ST; Sung UH; Jung JH; Paik JY; Woo JH; Cha HE; Kang IG

2013-09-01

183

Observation of maxillary sinus septa and bony bridges using dry skulls between Hellman's dental age of IA and IIIC.  

Science.gov (United States)

Maxillary sinus septa and bony bridges were observed using dry skulls in childhood, classified based on Hellman's dental age, to clarify maxillary sinus septum formation. Eighty-eight maxillary sinuses of 44 dry skulls and a cone-beam computed tomography (CBCT) unit were used. The locations of the septum, defined as a pointed bony structure originating from the inferior wall, and bony bridge, defined as a bony structure between the maxillary sinus wall and dental germ, were antero-posteriorly recorded, and the superoinferior distance, distance from the bony palate, and angle to the median palatine suture were measured. The rate of septum presence in the maxillary sinus was high (41.7%) in IIIC, and the septa were located in the deciduous molars, premolars, and molars. Also, all bony bridges were related to the median maxillary sinus wall, and the rate of the maxillary sinus showing a bony bridge was high in IIA and IIIA. Septum presence in the maxillary sinus was observed in IIA, IIC, IIIA, IIIB, and IIIC of Hellman's dental age. Also, bony bridges were observed in IC, IIA, IIC, IIIA, IIIB, and IIIC of Hellman's dental age. PMID:20882766

Naitoh, Munetaka; Suenaga, Yutaka; Gotoh, Kenichi; Ito, Masaki; Kondo, Shintaro; Ariji, Eiichiro

2010-08-01

184

Observation of maxillary sinus septa and bony bridges using dry skulls between Hellman's dental age of IA and IIIC.  

UK PubMed Central (United Kingdom)

Maxillary sinus septa and bony bridges were observed using dry skulls in childhood, classified based on Hellman's dental age, to clarify maxillary sinus septum formation. Eighty-eight maxillary sinuses of 44 dry skulls and a cone-beam computed tomography (CBCT) unit were used. The locations of the septum, defined as a pointed bony structure originating from the inferior wall, and bony bridge, defined as a bony structure between the maxillary sinus wall and dental germ, were antero-posteriorly recorded, and the superoinferior distance, distance from the bony palate, and angle to the median palatine suture were measured. The rate of septum presence in the maxillary sinus was high (41.7%) in IIIC, and the septa were located in the deciduous molars, premolars, and molars. Also, all bony bridges were related to the median maxillary sinus wall, and the rate of the maxillary sinus showing a bony bridge was high in IIA and IIIA. Septum presence in the maxillary sinus was observed in IIA, IIC, IIIA, IIIB, and IIIC of Hellman's dental age. Also, bony bridges were observed in IC, IIA, IIC, IIIA, IIIB, and IIIC of Hellman's dental age.

Naitoh M; Suenaga Y; Gotoh K; Ito M; Kondo S; Ariji E

2010-08-01

185

Pneumosinus dilatans of the maxillary sinus: a report of two cases.  

UK PubMed Central (United Kingdom)

Two cases of the rare condition of pneumosinus dilatans of the maxillary sinus are presented. This is a rare differential diagnosis of a maxillary mass. The precise aetiology and pathogenesis is obscure. Because facial deformity may persist after construction of a naso-antral window alone, direct resection and reconstruction using bone grafts is recommended in addition to the creation of a naso-antral window, if required.

Breidahl AF; Szwajkun P; Chen YR

1997-01-01

186

Pneumosinus dilatans of the maxillary sinus: a report of two cases.  

Science.gov (United States)

Two cases of the rare condition of pneumosinus dilatans of the maxillary sinus are presented. This is a rare differential diagnosis of a maxillary mass. The precise aetiology and pathogenesis is obscure. Because facial deformity may persist after construction of a naso-antral window alone, direct resection and reconstruction using bone grafts is recommended in addition to the creation of a naso-antral window, if required. PMID:9038512

Breidahl, A F; Szwajkun, P; Chen, Y R

1997-01-01

187

The role of the ostiomeatal unit anatomic variations in inflammatory disease of the maxillary sinuses.  

UK PubMed Central (United Kingdom)

OBJECTIVE: The purpose of the study was to determine the correlation between bony anatomic variations of the ostiomeatal unit (OMU) and chronic maxillary sinusitis. The study was based on the hypothesis that the mucosal contact caused by the variations represents the critical factor in increasing the risk of maxillary sinusitis. MATERIALS AND METHODS: Thin section high resolution computerised tomography (CT) examinations of the paranasal sinuses in 73 consecutive patients with 113 anatomic variations of the OMU were retrospectively reviewed. The following CT features were assessed: (1) Type of anatomic variations, (2) presence of a mucosal contact in the OMU and (3) presence of maxillary disease. Statistical evaluation was carried out using chi 2-test. RESULTS: The following bony anatomic variations were found: Concha bullosa (67 cases), abnormalities of the uncinate process (18 cases), Haller's cells (24 cases) and large ethmoidal bulla (four cases). Only 52 of the 113 anatomic variations were associated with ipsilateral maxillary disease (mucosal thickening, mucous retention cysts, polyps, retained secretions). Of 113 variations, 44 caused a mucosal contact, 35 of these were associated with maxillary abnormalities, while in nine cases there were no pathologic changes. Of 69 variations, 17 did not cause mucosal contact (P < 0.05). CONCLUSION: Our data shows that, in the presence of anatomic bony variations, a contact between the mucosal surface of the OMU is valuable in predicting the likelihood of a maxillary inflammatory disease.

Scribano E; Ascenti G; Loria G; Cascio F; Gaeta M

1997-05-01

188

Alveolar Ridge and Maxillary Sinus Augmentation Using rhBMP-2: A Systematic Review.  

UK PubMed Central (United Kingdom)

PURPOSE: The aim of this systematic review was to evaluate clinical and safety data for recombinant human bone morphogenetic protein-2 (rhBMP-2) in an absorbable collagen sponge (ACS) carrier when used for alveolar ridge/maxillary sinus augmentation in humans. MATERIALS AND METHODS: Clinical studies/case series published 1980 through June 2012 using rhBMP-2/ACS were searched. Studies meeting the following criteria were considered eligible for inclusion: >10 subjects at baseline and maxillary sinus or alveolar ridge augmentation not concomitant with implant placement. RESULTS: Seven of 69 publications were eligible for review. rhBMP-2/ACS yielded clinically meaningful bone formation for maxillary sinus augmentation that would allow placement of regular dental implants without consistent differences between rhBMP-2 concentrations. Nevertheless, the statistical analysis showed that sinus augmentation following autogenous bone graft was significantly greater (mean bone height: 1.6?mm, 95% CI: 0.5-2.7?mm) than for rhBMP-2/ACS (rhBMP-2 at 1.5?mg/mL). In extraction sockets, rhBMP-2/ACS maintained alveolar ridge height while enhancing alveolar ridge width. Safety reports did not represent concerns for the proposed indications. CONCLUSIONS: rhBMP-2/ACS appears a promising alternative to autogenous bone grafts for alveolar ridge/maxillary sinus augmentation; dose and carrier optimization may expand its efficacy, use, and clinical application.

de Freitas RM; Spin-Neto R; Junior EM; Pereira LA; Wikesjö UM; Susin C

2013-09-01

189

Microbiology of acute and chronic maxillary sinusitis in smokers and nonsmokers.  

UK PubMed Central (United Kingdom)

OBJECTIVES: We evaluated the microbiology of sinus aspirates of smokers and nonsmokers with acute and chronic maxillary sinusitis. METHODS: Cultures were obtained from 458 patients, 244 (87 smokers and 157 nonsmokers) of whom had acute maxillary sinusitis and 214 (84 smokers and 130 nonsmokers) of whom had chronic maxillary sinusitis, between 2001 and 2007. RESULTS: A greater number of Staphylococcus aureus, methicillin-resistant S aureus (MRSA), and beta-lactamase-producing bacteria (BLPB) were found in the 87 smokers with acute sinusitis than in the nonsmokers with acute sinusitis (p < 0.005, p < 0.025, and p < 0.05, respectively). A greater number of these organisms were found in the 84 smokers with chronic sinusitis than in the nonsmokers (p < 0.01, p < 0.025, and p < 0.001, respectively). Eighty-five BLPB isolates were recovered from 73 patients (30%) with acute sinusitis. These included Moraxella catarrhalis, S aureus, Haemophilus influenzae, Prevotella spp, and Fusobacterium spp; 40 BLPB isolates were found in smokers, and 45 in nonsmokers (p < 0.05). One hundred twenty-five BLPB isolates were recovered from 91 patients (43%) with chronic sinusitis, including M catarrhalis, Bacteroides fragilis group, S aureus, H influenzae, Prevotella spp, and Fusobacterium spp; 69 BLPB isolates were found in smokers, and 56 in nonsmokers (p < 0.001). Antimicrobial therapy had been administered in the past month to 130 patients (28%; 60 smokers and 70 nonsmokers; p <0.025). Both MRSA and BLPB were isolated more often from these individuals (p < 0.025). However, the higher isolation rates of MRSA and BLPB in smokers were independent of previous antimicrobial therapy. CONCLUSIONS: These data illustrate a greater frequency of isolation of S aureus, MRSA, and BLPB in patients with acute and chronic sinusitis who smoke.

Brook I; Hausfeld JN

2011-11-01

190

Removal of a dental implant displaced into the maxillary sinus by means of the bone lid technique.  

UK PubMed Central (United Kingdom)

Background. Rehabilitation of edentulous jaws with implant-supported prosthesis has become a common practice among oral surgeons in the last three decades. This therapy presents a very low incidence of complications. One of them is the displacement of dental implants into the maxillary sinus. Dental implants, such as any other foreign body into the maxillary sinus, should be removed in order to prevent sinusitis. Methods. In this paper, we report a case of dental implant migrated in the maxillary sinus and removed by means of the bone lid technique. Results and Conclusion. The migration of dental implants into the maxillary sinus is rarely reported. Migrated implants should be considered for removal in order to prevent possible sinusal diseases. The implant has been removed without any complications, confirming the bone lid technique to be safe and reliable.

Fusari P; Doto M; Chiapasco M

2013-01-01

191

Maxillary sinus floor augmentation using blood without graft material. Preliminary results in 10 patients.  

UK PubMed Central (United Kingdom)

PURPOSE: The maxillary sinus lift is recognized and stable, and there have been different innovations to optimize the technique. The aim of this study was to investigate the maxillary sinus lift technique with the use of a blood clot and without the use of a bone graft. MATERIALS AND METHODS: Ten patients were recruited for a unilateral sinus lift; patients without sinus pathology or other contraindication were selected. The maxillary sinus was accessed conventionally under local anesthesia followed by an osteotomy and a 1-cm(2) bony window access. The sinus membrane was detached and the window was repositioned above and stabilized with a 12- or 14-mm osteosynthesis screw introduced through the alveolar ridge. Dental implants were installed in the second surgical stage. Standardized panoramic radiographic checks were performed at every stage. RESULTS: Seven completely edentulous patients and 3 partially dentate patients were treated surgically. From the first to the second surgery, a bone gain of 2.37 mm was obtained, although loss of bone height was observed in 1 completely edentulous patient. In 7 patients, it was not possible to install the implants owing to insufficient bone height or inadequate bone quality. CONCLUSION: The protocol used in this investigation failed in the bone increase required for implant installation.

de Oliveira GR; Olate S; Cavalieri-Pereira L; Pozzer L; Asprino L; de Moraes M; de Albergaría-Barbosa JR

2013-10-01

192

Endoscopic assistance in the diagnosis and treatmentof odontogenic maxillary sinus disease.  

UK PubMed Central (United Kingdom)

PURPOSE: Endoscopic sinus surgery has become an increasingly popular treatment for most surgical cases of chronic sinusitis. However, in some cases, a modification of the classic Caldwell-Luc operation is unavoidable. The purpose of this paper is to present the outcome of 20 cases with pathology of the maxillary sinus which was approached endoscopically on diagnostic or interventional purpose. The primary indication for endoscopy for 11 cases was acute or chronic odontogenic sinusitis. For six cases, endoscopy was performed for removing a foreign body from the sinus cavity and for the remaining three cases, for diagnostic purpose only. METHODS: A 4-mm rigid endoscope was used through the middle nasal meatus (eight cases) or via a puncture at the canine fossa (seven cases). A combined endoscopic approach was used in five cases. In three cases, endoscopy was combined with Caldwell-Luc technique. For the majority of the patients, the operation was performed under local anesthesia (16 cases). RESULTS: The mean follow-up period was 9.1 months. No major complications were observed. One patient died 18 months after an endoscopically assisted detection of malignancy. Results were depended on the surgical procedure pursued and the underlying sinus pathology. Laborious surgery and chronic sinusitis gave the less satisfactory results. CONCLUSIONS: Endoscopy of the maxillary sinus can be applied in a variety of indications. Alone or in combination with conventional surgery, it is a minimally invasive and highly diagnostic tool.

Venetis G; Bourlidou E; Liokatis PG; Zouloumis L

2013-03-01

193

Endoscopic surgery of the maxillary sinuses in oral and maxillofacial surgery practice: a literature review  

Directory of Open Access Journals (Sweden)

Full Text Available Recently, a number of studies reported results of endoscopic surgery for treatment of odontogenic diseases of the maxillary sinuses and for sinus augmentation procedures. Therefore, the aim of this article was to review the literature data and to evaluate the level of current scientific evidence on this issue. Four retrospective and one prospective studies regarding functional endoscopic sinus surgery (FESS) for odontogenic sinusitis were identified. Also, several case series of endoscope – assisted removal of odontogenic cysts and tumors involving the maxillary sinus were published. Finally, five studies regarding endoscope –controlled sinus augmentation procedures were analyzed. From available literature it seems that FESS for treatment of odontogenic sinusitis is a safe and predictable treatment option. Although scientific evidence is low, this is a clinically well documented procedure with low incidence of complications. In contrast to this, endoscopic surgery for odontogenic cysts and tumors is documented only in limited case series reports. Regarding treatment of implant – related complications, endoscopic surgery has a potential to provide effective treatment of those cases. On the other hand, endoscopic sinus augmentation needs scientific evidence of superiority to conventional techniques before it can be introduced into clinical practice.

Miroslav Andric

2010-01-01

194

Spiral Computed Tomography Based Maxillary Sinus Imaging in Relation to Tooth Loss, Implant Placement and Potential Grafting Procedure  

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Full Text Available Objectives: The purpose of the present study was to explore the maxillary sinus anatomy, its variations and volume in patients with a need for maxillary implant placement.Materials and Methods: Maxillary sinus data of 101 consecutive patients who underwent spiral computed tomography (CT) scans for preoperative implant planning in the maxilla at the Department of Periodontology, University Hospital, Catholic University of Leuven, Leuven, Belgium were retrospectively evaluated. The alveolar bone height was measured on serial cross-sectional images between alveolar crest and sinus floor, parallel to the tooth axis. In order to describe the size of the maxillary sinus anteroposterior (AP) and mediolateral (ML) diameters of the sinus were measured.Results: The results indicated that the alveolar bone height was significantly higher in the premolar regions in comparison to the molar region (n = 46, P 4 mm) mucosal thickening mostly at the level of the sinus floor. The present sample did not allow revealing any significant difference (P > 0.05) in maxillary sinus dimensions for partially dentate and edentulous subjects.Conclusions: Cross-sectional imaging can be used in order to obtain more accurate information on the morphology, variation, and the amount of maxillary bone adjacent to the maxillary sinus.

Maryam Shahbazian; Dong Xue; Yuqian Hu; Johan van Cleynenbreugel; Reinhilde Jacobs

2010-01-01

195

Palatonasal Recess on Medial Wall of the Maxillary Sinus and Clinical Implications for Sinus Augmentation via Lateral Window Approach.  

UK PubMed Central (United Kingdom)

Background: Anatomic variations of the maxillary sinus determine the degree of difficulty in performing sinus augmentation. Whereas some variations, e.g., the septum and morphology of the sinus, have been extensively studied, the structure of the medial wall has never been investigated. The aims of this study are to measure the location and angulation of the palatonasal recess (PNR) on the medial wall and identify risk sites that are related to the shape of the PNR. Methods: Cone-beam computed tomography (CBCT) scans were screened from the University of Michigan School of Dentistry database. Edentulous sites with <10 mm between the floor of the maxillary sinus and the alveolar crest were selected. The residual ridge height (RH), the distance between the PNR and the alveolar crest, and the angulation of the PNR were measured on the selected sagittal planes. The percentage of sites (risk sites) with recesses that were <90°and <15 mm from the alveolar crest was calculated. The PNR location and angulation were compared among premolar and molar edentulous sites. Results: Two hundred seventy-four sites were studied. The mean ± SE PNR location was 14.2 ± 2.8 mm, 13.1 ± 2.2 mm, and 12.5 ± 2.5 mm for the second premolar, first molar, and second molar sites, respectively, with significant differences between the second premolar and second molar sites. The mean PNR angulation was 109.8° ± 25.3°, 121.6° ± 22.1°, and 144.9° ± 23.1° in the corresponding sites, with significant differences among the site groups. The respective percentages of risk sites were 15%, 8.2%, and 2.4% in the second premolar, first molar, and second molar sites. Conclusions: Maxillary sinuses with acute-angled PNRs might present a challenge for performing sinus augmentation. Therefore, this anatomic structure should be carefully evaluated.

Chan HL; Monje A; Suarez F; Benavides E; Wang HL

2013-08-01

196

The most often causes of odontogenic maxillary sinusitis  

Directory of Open Access Journals (Sweden)

Full Text Available In the period 2000-2002, 40 patients with odontogenic sinusitis were examined at the Institute for ENT and Maxillofacial Surgery, Clinical Centre of Serbia. Oroantral communication was detected in 40% of the patients, oroantral fistula in 35%, sinus foreign bodies in 15% and other conditions in 10% of the cases. The extraction of the upper lateral teeth was the cause of odontogenic sinusitis in 65% of the cases. Given the specific tooth, the first upper molar was the most often cause of the condition, i.e., in 40% of cases. Odontogenic sinusitis as the complication of the oral cavity surgery was found in 85% of the patients.

Ra?i? Alek; Dimitrijevi? Milovan; ?uki? Vojko

2004-01-01

197

Sex identification in Egyptian population using Multidetector Computed Tomography of the maxillary sinus.  

UK PubMed Central (United Kingdom)

Forensic anthropology involves the building of an antemortem profile of an individual from skeletal remains. This includes sex, race determination, and age and stature estimation. Because most bones that are conventionally used for sex determination are often recovered either in a fragmented or incomplete state, it has become necessary to use denser bones that are often recovered intact, eg, the maxillary sinus. The present work was performed to investigate the possibility of estimation of sex from some radiologic measurements among a known cross-section of Egyptian population. In this study, by the use of Multidetector Computed Tomography (MDCT) scan, eight maxillary sinus measurements were assessed in 96 living non-pathologic Egyptians comprising 48 males and 48 females aged 20-70 years referred to the Radiology Department. These were subjected to statistical analysis. Two variables showed significant differences: cephalo-caudal and size of the left maxillary sinus. The study concluded that the correct predictive accuracy was 70.8% in males and 62.5% in females. In conclusion, MDCT measurements of cephalo-caudal and size of the left maxillary sinuses are useful feature in gender determination in Egyptians.

Amin MF; Hassan EI

2012-02-01

198

Sex identification in Egyptian population using Multidetector Computed Tomography of the maxillary sinus.  

Science.gov (United States)

Forensic anthropology involves the building of an antemortem profile of an individual from skeletal remains. This includes sex, race determination, and age and stature estimation. Because most bones that are conventionally used for sex determination are often recovered either in a fragmented or incomplete state, it has become necessary to use denser bones that are often recovered intact, eg, the maxillary sinus. The present work was performed to investigate the possibility of estimation of sex from some radiologic measurements among a known cross-section of Egyptian population. In this study, by the use of Multidetector Computed Tomography (MDCT) scan, eight maxillary sinus measurements were assessed in 96 living non-pathologic Egyptians comprising 48 males and 48 females aged 20-70 years referred to the Radiology Department. These were subjected to statistical analysis. Two variables showed significant differences: cephalo-caudal and size of the left maxillary sinus. The study concluded that the correct predictive accuracy was 70.8% in males and 62.5% in females. In conclusion, MDCT measurements of cephalo-caudal and size of the left maxillary sinuses are useful feature in gender determination in Egyptians. PMID:22281213

Amin, Mohammed F; Hassan, Eman I

2011-11-03

199

A case of non-Hodgikin's lymphoma (reticulum cell sarcoma) occurring in maxillary sinus  

International Nuclear Information System (INIS)

[en] Reticulum cell sarcoma occurring in the maxillary sinus of a 77-year-old man was treated by the combination irradiation of 40 Gy and VCP adjuvant chemotherapy. In spite of his advanced age, the tumor showed a marked regression, and the patient is currently alive and well 3 years and 2 months after treatment. (Chiba, N.)

1982-01-01

200

Unicystic ameloblastoma of the maxillary sinus: Pitfalls of diagnosis and management  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Background: Ameloblastoma is a common odontogenic tumor of the jaws that comprises 3 variants: conventional (solid), unicystic and peripheral ameloblastomas. Unicystic ameloblastoma (UA) in the maxillary sinus is very rare. With a secondary infection, the clinical features may lead to incorrect diag...

Pitak-Arnnop, P; Chaine, A; Dhanuthai, K; Bertrand, J C; Bertolus, C

 
 
 
 
201

Myxoid Type of Malignant Fibrous Histiocytoma of the Maxillary Sinus: A Case Report  

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Introduction: Myxofibrosarcoma was originally described as the myxoid variant of Malignant Fibrous Histiocytoma (MFH), a high-grade and aggressive sarcoma, which is very uncommon in the head and neck region, with about 100 cases reported up to now. MFH occurring in the maxillary sinus is so rare tha...

Amir Hossein Jafarian; Abbas Ali Omidi; Mohammad Mehdi Ghasemi; Bahareh Joushan

202

Decellularized Human Maxillary Sinus Schneiderian Membrane as a Potential Scaffold for Tissue Engineering  

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Full Text Available Introduction: Biological matrix has received special attention in recent medical and biological researches. Cells of tissue are supported by extracellular matrix (ECM). Extracellular matrix is used as a scaffold for morphogenesis, proliferation, migration, and differentiation in tissue engineering. Extracellular matrix of natural tissues can be used as a scaffold for reconstructing biological tissues in tissue engineering. Human maxillary sinus membrane consists of cells and ECM which contain collagen, elastin, and proteoglycans. Collagen can be used as a natural scaffold via high level of biocompatibility. Materials & Methods: In this study, Human maxillary sinus membrane were decellularized by two techniques , physical method (liquid nitrogen) and chemical procedures via increment concentration of sodium dodecyl sulfate (SDS) in three groups. The samples were fixed with Bouin's fixator, and then were stained with Hematoxylin & Eosin. decellularised Human maxillary sinus membrane was evaluated with scanning electrone microscope.Results: Histological evaluation of decellularized scaffolds revealed that cells of the schneiderian membrane tissues were completely removed via concentration of 1% of SDS. Scanning Electrone Microscope (SEM) (Leo-VP1450, Germany) of the scaffolds indicated that collagen fibers of connective tissue remained intact. In 0.5 and 0.1% concentrations of SDS, few cells were observed at peripheral of ECM, so decellularization process was not complete. Conclusion: According to the results, scaffolds prepared from Human Maxillary Sinus Membrane could be used as a suitable scaffold for In vitro investigation and reconstruction and tissue engineering.

Saeedeh KhajehAhmadi; Amin Rahpeyma; Nasser MahdaviShahri

2013-01-01

203

Alveolar Ridge and Maxillary Sinus Augmentation Using rhBMP-2 : A Systematic Review  

DEFF Research Database (Denmark)

The aim of this systematic review was to evaluate clinical and safety data for recombinant human bone morphogenetic protein-2 (rhBMP-2) in an absorbable collagen sponge (ACS) carrier when used for alveolar ridge/maxillary sinus augmentation in humans.

de Freitas, Rubens Moreno; Spin-Neto, Rubens

2013-01-01

204

Associations between inflammatory cells infiltrating the ethmoid sinus mucosa, and nasal polyp size and grade of ethmoid sinus opacification on CT images in chronic sinusitis  

International Nuclear Information System (INIS)

We investigated the types and numbers of inflammatory cells that infiltrated the ethmoid sinus mucosa in cases of chronic sinusitis in order to identify any associations with nasal polyp size and the grade of ethmoid sinus opacification on computer tomography images. The subjects were patients with chronic sinusitis who underwent endoscopic sinus surgery. Seventeen subjects also had bronchial asthma as a complication (six with aspirin-induced asthma, 11 with another form of asthma) and 24 did not have bronchial asthma as a complication (16 with allergic rhinitis, 8 with chronic sinusitis alone). The nasal polyps in the patients with bronchial asthma were significantly larger than those in the patients without bronchial asthma. Investigation of the numbers of infiltrating inflammatory cells according to polyp size revealed significantly more eosinophils as polyp size increased. In addition, infiltration of significantly more mast cells was observed when the polyps were large. Assessment of the grade of opacification of the ethmoid sinuses on computer tomography images showed a significantly higher grade of opacification in the patients with bronchial asthma than in the patients without bronchial asthma. Comparisons between the grade of opacification of the ethmoid sinuses and the number of infiltrating inflammatory cells revealed significantly more infiltrating eosinophils and mast cells in the patients with intense ethmoid sinus opacification. The above findings suggest that eosinophils and mast cells play a major role in forming the persistent inflammation of the sinus mucosa and nasal polyp tissue of patients with chronic sinusitis complicated by bronchial asthma. (author)

2009-01-01

205

Usefulness of Panoramic Radiography in the Detection of Maxillary Sinus Pathosis  

Energy Technology Data Exchange (ETDEWEB)

to evaluate the usefulness of the panoramic radiography, generally used in dental clinic, for the detection of the maxillary sinus pathosis due to the inflammation and tumor, through the comparison with CT findings as the absolute standard. 150 maxillary sinuses of 75 patients with or without particular signs and symptoms and showing soft tissue lesions or destruction of maxillary sinus walls in at least one sinus in CT, were selected as subject samples, and the panoramic radiography of the same patients were interpretated by 3 dental radiologists and 3 non dental radiologist given no previous information. Using the CT findings as the absolute standard, the diagnostic ability of panoraimc radiography in the mucosal thickening, maxillary sinus haziness, inferior wall destruction, medial wall destruction, posterolateral wall destruction and the superior wall destruction was evaluated using the ROC curve and the difference between dental radiologist group and non dental radiologist group was also evaluated. 1. When dental radiologist group interpretated the destruction of inferior wall and posterolateral wall, the kappa value which shows interobserver's coincidence was above 0.75.2. The diagnostic ability according to site of interpretation was the highest when the inferior wall was interpretated in both observer groups and there was a statistically significant difference between the dental radiologist group and non dental radiologist group in interpretating the mucosal thickening, haziness, destruction of the inferior and medial wall (p<0.05).3. The diagnostic ability in detecting the destruction of the sinus walls was better than in soft tissue lesions in both groups and between the groups there was a statistically significant difference (p<0.05). When detecting the destruction of inferior and posterolateral wall of the maxillary sinus there was coincident with that of CT findings, and so it is considered that diagnostic ability of panoramic radiography is high in this point. But in interpretating the destruction of medial wall and soft tissue lesions, diagnostic ability of the panoramic radiography was relatively low and there was a significant difference between the dental radiologist group and non dental radiologist group. Therefore CT or other auxiliary diagnostic method will be necessary when evaluating thorough pathosis of maxillary sinus objectively.

Lee, Eun Sook; Paek, Chang Seo [Dept. of Dental Radiology, College of Dentistry, Yensei University, Seoul (Korea, Republic of)

1999-02-15

206

Clinical study on the observation of unilateral shadows in the maxillary sinus  

Energy Technology Data Exchange (ETDEWEB)

In the everyday examination of patients exhibiting a unilateral shadow in the maxillary sinus upon imaging, the differentiation of chronic sinusitis from other diseases, including malignant tumors, is extremely important. A unilateral shadow in the maxillary sinus was detected on scout films and a subsequent CT examination of the sinus was performed in 108 patients who visited our department between January 1994 and December 1998. Bone destruction was suspected after scout films were taken in 2 patients with malignant tumors. These 2 patients account for only a small percentage of the total patient population, but account for as much as 50% of the patients with malignant tumors. In cases of malignant tumors, the CT images suggesting bone destruction agreed with operative findings. CT seems to be a useful tool for evaluating the condition of the bone. When the density of scout films and CT images were compared, no significant difference was detected, suggesting that scout films can be used for the screening of malignant tumors. The density was (+++) in both the scout films and the CT images of the 2 patients with malignant tumors. Finally, we present a flow chart for the diagnosis of unilateral maxillary sinus shadows that has been recently adopted as the basic protocol used in our department. (author)

Hattori, Hirokazu; Sawada, Tatsuya; Hayano, Yoshiaki; Suzuki, Kenji; Yagisawa, Mikio; Nishimura, Tadao [Fujita Health Univ., Nagoya (Japan). Second Affiliated Hospital

2000-12-01

207

Maxillary rhinosinusitis due to Fusarium species leading to cavernous sinus thrombosis.  

UK PubMed Central (United Kingdom)

Fungal rhinosinusitis is being recognized and reported with increasing frequency over the last two decades worldwide. Intracranial extension is the most dreaded complication of fungal sinusitis with high mortality rates. We report a case of chronic rhinosinusitis in a 55-year-old diabetic male, caused by Fusarium species. The patient was diagnosed as a case of chronic left maxillary sinusitis with cavernous sinus thrombosis. The sinus lavage showed fungal elements on direct microscopic examination and culture revealed growth of Fusarium species within 4 days of incubation. Conservative therapy with IV amphotericin B resulted in favorable outcome of the patient. This is an extremely rare case where cavernous sinus thrombosis occurred as a complication secondary to Fusarium species rhinosinusitis.

Rajmane VS; Rajmane ST; Patil VC; Patil AB; Mohite ST

2013-03-01

208

Mucocele del seno maxilar post-traumático Post-traumatic mucocele of the maxillary sinus  

Directory of Open Access Journals (Sweden)

Full Text Available Los mucoceles de los senos paranasales son lesiones benignas pero con un considerable potencial destructivo por la reabsorción ósea que pueden generar. La localización en el seno maxilar es muy poco frecuente así como el origen postraumático. Presentamos el caso de un mucocele de seno maxilar tras 28 años después de un traumatismo facial. Analizamos la etiopatogenia, el diagnóstico y el tratamiento de este tipo de lesiones.Mucoceles of the paranasal sinuses are benign lesions but they can be destructive because they cause bone resorption. The location in a maxillary sinus and a traumatic origin are uncommon. We report a case of mucocele of the maxillary sinus 28 years after facial trauma. We analyzed the etiopathogenesis, diagnosis, and treatment of this type of lesions.

E. Charro-Huerga; J. Ferreras Granado; I. Vázquez Mahía; J.L. López-Cedrún

2009-01-01

209

Mucocele del seno maxilar post-traumático/ Post-traumatic mucocele of the maxillary sinus  

Scientific Electronic Library Online (English)

Full Text Available Abstract in spanish Los mucoceles de los senos paranasales son lesiones benignas pero con un considerable potencial destructivo por la reabsorción ósea que pueden generar. La localización en el seno maxilar es muy poco frecuente así como el origen postraumático. Presentamos el caso de un mucocele de seno maxilar tras 28 años después de un traumatismo facial. Analizamos la etiopatogenia, el diagnóstico y el tratamiento de este tipo de lesiones. Abstract in english Mucoceles of the paranasal sinuses are benign lesions but they can be destructive because they cause bone resorption. The location in a maxillary sinus and a traumatic origin are uncommon. We report a case of mucocele of the maxillary sinus 28 years after facial trauma. We analyzed the etiopathogenesis, diagnosis, and treatment of this type of lesions.

Charro-Huerga, E.; Ferreras Granado, J.; Vázquez Mahía, I.; López-Cedrún, J.L.

2009-02-01

210

LYMPHANGIOMA OF THE MAXILLARY SINUS - A RARE CASE REPORT  

Directory of Open Access Journals (Sweden)

Full Text Available Lymphangiomas are benign hamartomas of the lymphatic vessels. They arecongenital malformations that are usually present at birth or diagnosed as early as twoyears of age. Though 75% of lymphangiomas occur in head and neck region, itsoccurrence in the maxillary antrum is a very rare entity. Very few cases have beenreported in the literature so far. We report a case of lymphangioma of the maxillarysinus in a 29 year old male patient which was discovered as an accidental finding duringopen reduction of a maxillary complex fracture. Complete surgical excision was donewith no reports of recurrence.

N. Sangeetha; Ramkumar; N. Malathi; H. Thamizchelvan; Sharada .T.Rajan

2013-01-01

211

An assessment of maxillary sinus and alveolar bone in cross-sectional linear tomogram of panorama  

Energy Technology Data Exchange (ETDEWEB)

To evaluate the precision of measurements taken of dental implants in bucco-lingually sectioned views of the maxilla by linear tomograms of the panorama and to assess the visibility of the inferior wall of the maxillary sinus. Eighty sites prepared with implants of gutta percha cone in the sockets of the upper premolars and molars of 10 dry skulls were radiographically examined using linear tomograms of panorama, and scanned coronally and axially by computed tomography. The differences in mm between the measurements in bucco-lingually sectioned images of maxillary alveolar bone and the true length and width of the implanted gutta percha cones were compared as mean values (mean) and standard deviation (SD) for each radiographic technique. Linear tomography of panorama was compared with computed tomography for visualization of the relationship between the inferior wall of maxillary sinus and the end of each implant. The deviations between the actual implant length and the measured values taken from the linear tomograms (0.44 {+-} 0.39 mm) was significantly less than the measured values from the multiplanar reconstructed images of the axially scanned computed tomogram (1.21 {+-} 0.90 mm). There was statistically significant difference (p<0.05) between two techniques in the differences between the measurements and true implant length. The relationship of the inferior border of maxillary sinus with end of implant was worse identified with the linear tomogram of panorama (68%) than the multiplanar reconstructed image of axially scanned computed tomogram (99%). We could not find any differences in the accuracy of length measurement between the linear tomogram of panorama and computed tomogram, but computed tomogram allowed for a better visualization of the inferior wall of the maxillary sinus than the linear tomogram.

Kim, Jae Duk [Chosun University College of Medicine, Gwangju (Korea, Republic of)

2003-09-15

212

[Trauma induced left maxillary sinus dislocation of eyeball--a case report].  

UK PubMed Central (United Kingdom)

Patient male, 27 year old. Left facial and head trauma for 6 hours, due to motor vehicle accident. Patient state of mind was clear at arrival to hospital. Body temperature: 36C; Pulse: 80 Time/Minute; Breath: 20 Time/Minute; Blood pressure: 120/80 mm Hg. An irregular, horizontal laceration at arch of left eyebrow, approximately 8-10 cm. A laceration on left wing of nose skin, approximately 1 cm. A lacetation also under lower eyelid skin of right eye, approximately 2 cm. Left blepharedema and enophthalmos. Orbital and nasal sinuses CT indications:contusion and laceration of the left frontal lobe of brain; fracture of the left orbital frontal, ethmoid, sphenoid bone, left nasal, maxillary sinus and zygoma with soft tissue contusion and laceration; the left eyeball and optic nerve sunk into the maxillary sinus (See figure 1). Diagnosis: (1) Multiple orbital fractures; (2) Left maxillary sinus dislocation of eyeball; (3) The left frontal lobe contusion and laceration of brain.

Chen Y; Liu C; Cui L

2013-01-01

213

Effect of platelet rich plasma on bone regeneration in maxillary sinus augmentation (randomized clinical trial).  

UK PubMed Central (United Kingdom)

This study evaluates bone quality in sinus augmented with autogenous bone with or without platelet rich plasma (PRP) mix. 15 partially edentulous patients requiring maxillary sinus floor augmentation, followed by implant insertion were studied. In group I, 5 patients underwent maxillary sinus lifting with autogenous bone augmentation and implant insertion at 6 months post grafting. In group II, 10 patients underwent maxillary sinus lifting with autogenous bone augmentation mixed with PRP prepared from the patient's own blood with implant insertion at 4 or 6 months post grafting (n=5 for each implantation time). A core biopsy was taken at the time of implant placement for histological and histomorphometric evaluation. Immediately and 3 months after implantation, group I showed the statistically significant highest mean bone density (p=0.046 and 0.022, respectively). At 6 months post-implantation, Group II showed the statistically significant highest mean bone density (p=0.041). Histomorphometric analysis showed that group I had the statistically significant highest mean value (39.5±7.4; p=0.003). Enrichment with PRP did not significantly improve bone density or morphometric value at 3 months post grafting. PRP enriched bone grafts were associated with superior bone density at 6 months post grafting.

Khairy NM; Shendy EE; Askar NA; El-Rouby DH

2013-02-01

214

Prevalence of Concha Bullosa and Nasal Septal Deviation and Their Relationship to Maxillary Sinusitis by Volumetric Tomography.  

Science.gov (United States)

The objective of this study was to determine the prevalence of concha bullosa and nasal septal deviation and their potential relationships to maxillary sinusitis. 883 CT scans taken at Creighton University School of Dentistry from 2005 to 2008 were retros...

K. D. Smith N. S. Norton P. C. Edwards T. S. Saini

2010-01-01

215

Radiographic evaluations of the various lesions of maxillary sinus, inferior wall of sinus and surrounding structures using reformatted computed tomography  

International Nuclear Information System (INIS)

To evaluate the degree of accuracy of DentaScan reformatted images of the maxillary sinus and periapical, periodontal lesions and to clarify the usefulness of the reconstructed 3-dimensional images to the dental clinical aspects. 33 sides of maxillae of the hemi-sectioned Korean heads were used in this study. Periapical radiographs, computed tomography and DentaScan reformatted cross-sectional images were taken for the radiographic evaluation of the peiapical and peiodontal lesions of the maxillary teeth and inferior wall of maxillary sinus. Compared the degree of accuracy and findings of dental and periapical pathoses on the intraoral radiographs and DentaScan reformatted images with the cross-sectioned specimens, the DentaScan reformatted cross-sectional images were more accurate and more effective than the intraoral radiography with a viewpoint of the detection of dental and periapical pathoses. Comparing the lesions of specimens with intraoral radiographies and DentaScan reformatted images, the dental and periodontal pathoses and topographical structures were more clearly observed in the DentaScan reformatted images, providing the possibility of more applications of reformatted images to clinical dentistry.

2002-01-01

216

Radiographic evaluations of the various lesions of maxillary sinus, inferior wall of sinus and surrounding structures using reformatted computed tomography  

Energy Technology Data Exchange (ETDEWEB)

To evaluate the degree of accuracy of DentaScan reformatted images of the maxillary sinus and periapical, periodontal lesions and to clarify the usefulness of the reconstructed 3-dimensional images to the dental clinical aspects. 33 sides of maxillae of the hemi-sectioned Korean heads were used in this study. Periapical radiographs, computed tomography and DentaScan reformatted cross-sectional images were taken for the radiographic evaluation of the peiapical and peiodontal lesions of the maxillary teeth and inferior wall of maxillary sinus. Compared the degree of accuracy and findings of dental and periapical pathoses on the intraoral radiographs and DentaScan reformatted images with the cross-sectioned specimens, the DentaScan reformatted cross-sectional images were more accurate and more effective than the intraoral radiography with a viewpoint of the detection of dental and periapical pathoses. Comparing the lesions of specimens with intraoral radiographies and DentaScan reformatted images, the dental and periodontal pathoses and topographical structures were more clearly observed in the DentaScan reformatted images, providing the possibility of more applications of reformatted images to clinical dentistry.

Yoon, Hae Rym; Kim Hee Jin; Kim, Kee Deog; Park, Chang Seo [Yonsei University College of Dentistry, Seoul (Korea, Republic of)

2002-03-15

217

Paranasal sinuses in children: size evaluation of maxillary, sphenoid, and frontal sinuses by magnetic resonance imaging and proposal of volume index percentile curves  

Energy Technology Data Exchange (ETDEWEB)

Our objective was to establish the age-related 3D size of maxillary, sphenoid, and frontal sinuses. A total of 179 magnetic resonance imaging (MRI) of children under 17 years (76 females, 103 males) were included and sinuses were measured in the three axes. Maxillary sinuses measured at birth (mean{+-}standard deviation) 7.3{+-}2.7 mm length (or antero-posterior)/4.0{+-}0.9 mm height (or cranio-caudal)/2.7{+-}0.8 mm width (or transverse). At 16 years old, maxillary sinus measured 38.8{+-}3.5 mm/36.3{+-}6.2 mm/27.5{+-}4.2 mm. Sphenoid sinus pneumatization starts in the third year of life after conversion from red to fatty marrow with mean values of 5.8{+-}1.4 mm/8.0{+-}2.3 mm/5.8{+-}1.0 mm. Pneumatization progresses gradually to reach at 16 years 23.0{+-}4.5 mm/22.6{+-}5.8 mm/12.8{+-}3.1 mm. Frontal sinuses present a wide variation in size and most of the time are not valuable with routine head MRI techniques. They are not aerated before the age of 6 years. Frontal sinuses dimensions at 16 years were 12.8{+-}5.0 mm/21.9{+-}8.4 mm/24.5{+-}13.3 mm. A sinus volume index (SVI) of maxillary and sphenoid sinus was computed using a simplified ellipsoid volume formula, and a table with SVI according to age with percentile variations is proposed for easy clinical application. Percentile curves of maxillary and sphenoid sinuses are presented to provide a basis for objective determination of sinus size and volume during development. These data are applicable to other techniques such as conventional X-ray and CT scan. (orig.)

Barghouth, G.; Prior, J.O.; Lepori, D.; Duvoisin, B.; Schnyder, P.; Gudinchet, F. [Department of Radiology, CHUV University Hospital, Lausanne (Switzerland)

2002-06-01

218

Paranasal sinuses in children: size evaluation of maxillary, sphenoid, and frontal sinuses by magnetic resonance imaging and proposal of volume index percentile curves  

International Nuclear Information System (INIS)

Our objective was to establish the age-related 3D size of maxillary, sphenoid, and frontal sinuses. A total of 179 magnetic resonance imaging (MRI) of children under 17 years (76 females, 103 males) were included and sinuses were measured in the three axes. Maxillary sinuses measured at birth (mean±standard deviation) 7.3±2.7 mm length (or antero-posterior)/4.0±0.9 mm height (or cranio-caudal)/2.7±0.8 mm width (or transverse). At 16 years old, maxillary sinus measured 38.8±3.5 mm/36.3±6.2 mm/27.5±4.2 mm. Sphenoid sinus pneumatization starts in the third year of life after conversion from red to fatty marrow with mean values of 5.8±1.4 mm/8.0±2.3 mm/5.8±1.0 mm. Pneumatization progresses gradually to reach at 16 years 23.0±4.5 mm/22.6±5.8 mm/12.8±3.1 mm. Frontal sinuses present a wide variation in size and most of the time are not valuable with routine head MRI techniques. They are not aerated before the age of 6 years. Frontal sinuses dimensions at 16 years were 12.8±5.0 mm/21.9±8.4 mm/24.5±13.3 mm. A sinus volume index (SVI) of maxillary and sphenoid sinus was computed using a simplified ellipsoid volume formula, and a table with SVI according to age with percentile variations is proposed for easy clinical application. Percentile curves of maxillary and sphenoid sinuses are presented to provide a basis for objective determination of sinus size and volume during development. These data are applicable to other techniques such as conventional X-ray and CT scan. (orig.)

2002-01-01

219

A case of coinfection in a chronic maxillary sinusitis of odontogenic origin: identification of Dialister pneumosintes.  

UK PubMed Central (United Kingdom)

INTRODUCTION: In this report, we discuss the case of a 39-year-old woman presenting with a case of chronic maxillary sinusitis. METHODS: Dialister pneumosintes, Staphylococcus epidermidis, and Peptostreptococcus spp. were isolated from endosinusal samples obtained during surgery. The patient showed extensive periodontopathy and had undergone prior endodontic treatment for endodontic infection of teeth #13, #14, and #15, which failed and presumably acted as a bridge for the sinusal infection. After nasosinusal surgery, consisting of opening and toilet of the maxillary sinus, combined with extraction of the 3 previously mentioned teeth and antibiotic treatment, the patient showed complete healing. RESULTS: S. epidermidis and Peptostreptococcus spp. were identified with a traditional biochemical test and confirmed by pyrosequencing. Conversely, D. pneumosintes could not be identified with the conventional method, but it was identified using DNA pyrosequencing. In addition, to better understand the role and the virulence of this bacterium in odontogenic sinusitis, we have evaluated the ability of D. pneumosintes to produce biofilms onto inert surfaces. D. pneumosintes is a known endodontic and periodontal pathogen found in necrotic pulp, subgingival plaque, and deep periodontal pockets. CONCLUSIONS: To our knowledge, the pathogenic role of D. pneumosintes in odontogenic sinusitis has never been evidenced. Thus, its detection in endosinusal specimens may provide a significant insight into the pathogenesis of this relevant medical condition.

Drago L; Vassena C; Saibene AM; Del Fabbro M; Felisati G

2013-08-01

220

[Nasal polyposis masquerading epidermoid carcinoma of the maxillary sinus. Importance of the biopsy in FENS].  

UK PubMed Central (United Kingdom)

Sinonasal polyposis sometimes can masquerade malignant pathology of the paranasal sinuses and nose. We report the case of a 60 years old male diagnosed initially as solitary polyp and operated by endoscopic surgery with intrasurgical biopsy because a suspect of malignancy. The result was epidermoid carcinoma from left maxillary sinus that was confirmed after the definitive anatomopathologic exam. After Caldwell-Luc and complete removal of the tumoration, the patient evolutioned satisfactory being free of illness by clinical and radiological explorations after 1 year follow-up.

Pino Rivero V; González Palomino A; Pardo Romero G; Marcos García M; Trinidad Ruíz G; Pantoja Hernández CG; Blasco Huelva A

2005-01-01

 
 
 
 
221

Forensic ethnic identification of crania: the role of the maxillary sinus--a new approach.  

UK PubMed Central (United Kingdom)

Forensic pathologists may be asked to identify the ethnic group and gender of a cranium of unknown origin. An analysis of the maxillary sinus--its volume, shape, and dimensions in dried crania of different ethnic and gender groups (European and Zulu male and female)--was conducted to establish a new approach. A variation in maxillary sinus volume may mean a variation in anatomic landmarks between the groups. Ethnic and gender variations in the shape of the maxillary sinus of the crania were investigated. This research was further extended to predict the gender and ethnic group from an unknown cranium to make this research valuable to the fields of forensic pathology and anthropology. Helical, multislice computed tomography was performed using 1-mm coronal slices. The area for each slice was obtained by tracing the outline of each slice. The computed tomographic machine calculated a volume by totalling the slices for each sinus. Advanced computer methodology including a neural network was designed and applied to search for classification patterns in data. A discriminant analysis was performed to improve classification results. Ethnic and gender variations were found in the different groups, and the predictive role of the maxillary sinus in ethnic classification was established. It was found that European crania had significantly larger antral volumes than Zulu crania, and males had larger volumes than females. Dimensions of European sinuses were larger than those of Zulu sinuses. The medial antral wall of the sinus allowed for ethnic classification. The discriminant analysis allowed for a very successful 90% ethnic prediction, while gender prediction was ultimately 79%. The measurements taken and the formulae created in this research will be valuable to those in the field who are seeking to ethnically classify a cranium into one or another ethic group. This research aims to be an aid in identification, as well as a starting point for other scientific studies based on other ethnic groups. Perhaps its true value will lie in confirming ethnicity by adding to existing criteria. It must be noted that this classification is based on actual measurements and therefore eliminates the some of the subjectivity present in current methods of ethnic classification.

Fernandes CL

2004-12-01

222

Forensic ethnic identification of crania: the role of the maxillary sinus--a new approach.  

Science.gov (United States)

Forensic pathologists may be asked to identify the ethnic group and gender of a cranium of unknown origin. An analysis of the maxillary sinus--its volume, shape, and dimensions in dried crania of different ethnic and gender groups (European and Zulu male and female)--was conducted to establish a new approach. A variation in maxillary sinus volume may mean a variation in anatomic landmarks between the groups. Ethnic and gender variations in the shape of the maxillary sinus of the crania were investigated. This research was further extended to predict the gender and ethnic group from an unknown cranium to make this research valuable to the fields of forensic pathology and anthropology. Helical, multislice computed tomography was performed using 1-mm coronal slices. The area for each slice was obtained by tracing the outline of each slice. The computed tomographic machine calculated a volume by totalling the slices for each sinus. Advanced computer methodology including a neural network was designed and applied to search for classification patterns in data. A discriminant analysis was performed to improve classification results. Ethnic and gender variations were found in the different groups, and the predictive role of the maxillary sinus in ethnic classification was established. It was found that European crania had significantly larger antral volumes than Zulu crania, and males had larger volumes than females. Dimensions of European sinuses were larger than those of Zulu sinuses. The medial antral wall of the sinus allowed for ethnic classification. The discriminant analysis allowed for a very successful 90% ethnic prediction, while gender prediction was ultimately 79%. The measurements taken and the formulae created in this research will be valuable to those in the field who are seeking to ethnically classify a cranium into one or another ethic group. This research aims to be an aid in identification, as well as a starting point for other scientific studies based on other ethnic groups. Perhaps its true value will lie in confirming ethnicity by adding to existing criteria. It must be noted that this classification is based on actual measurements and therefore eliminates the some of the subjectivity present in current methods of ethnic classification. PMID:15577519

Fernandes, Carmen Lee

2004-12-01

223

Sinusitis maxilar iatrogénica tras la colocación de implantes: A propósito de un caso Iatrogenic maxillary sinusitis related to implant placement: A case report  

Directory of Open Access Journals (Sweden)

Full Text Available La perforación del suelo del seno maxilar y de las fosas nasales durante la colocación de implantes en las crestas alveolares situadas por debajo no es un hecho infrecuente. Pequeñas comunicaciones producidas durante el fresado para la preparación del lecho implantario cierran espontáneamente, pero es un requisito indispensable para evitar futuras complicaciones que el implante quede estable, si no deberá ser retirado. Presentamos el caso de una mujer de 54 años de edad que acude refiriendo cacosmia y halitosis permanentes y episodios esporádicos de dolor en la zona infraorbitaria derecha asociados a rinorrea purulenta, que no ceden a la administración de distintos antibióticos. Las pruebas radiológicas muestran tres implantes dentales en el primer cuadrante sustituyendo a 1.2, 1.3 y 1.6: el primero perforando la fosa nasal, y el tercero con el extremo apical en el interior del seno maxilar derecho con una imagen radioopaca bien delimitada asociada. Confirmada la existencia de una comunicación bucosinusal de más de dos años de evolución, y establecida esta como la causa del cuadro de sinusitis maxilar crónica que la paciente padece, se determina como plan de tratamiento la extracción de los tres implantes y la reconstrucción del plano óseo mediante un injerto de hueso autólogo de mentón. Al retirar el implante en posición 1.6 se observa material de aspecto resinoso adherido a toda su superficie, con fines probablemente retentivos, y que habrá contribuido en gran medida a incrementar el proceso irritativo local. El defecto remanente es tan importante en este sector que se hace imposible anclar un injerto óseo en este área, por lo que se legra la mucosa sinusal enferma a su través, enviando muestra para su posterior análisis anatomopatológico, y se consigue el cierre primario mediante un injerto pediculado de la bola adiposa de Bichat. Los controles postoperatorios fueron favorables consiguiendo de esta forma la remisión total de la sintomatología y la recuperación completa.Perforation of the floor of the maxillary sinus or nasal cavity during implant placement in the residual bone located below is not an infrequent situation. It's been strongly reported that slight membrane puncture while preparing implant bed does not play a significant role in clinical outcome, as it heals spontaneously, but it is an essential requirement that the implant remains intraoperatory stable. We present the case of a 54 yr. old woman that consulted in our office referring permanent cacosmia and halitosis associated to sporadic episodes of pain and purulent rhinorrhea, that didn't ease to the administration of several different antibiotics. Radiological findings show three dental implants in the first quadrant replacing teeth 1.2, 1.3 and 1.6: first one piercing the nostril and the third one with its apical end completely into the right maxillary sinus with a delimitated radiopaque mass associated. Once confirmed the existency of an oroantral fistula and its involvement in the two-year evolution chronic sinusitis diagnosed, the treatment established included the extraction of the three implants and the simultaneous osseous reconstruction with an autologous bone chin graft. After the removal of implant 1.6, a composite resin-like material is found stuck to its surface with supposedly retentive purposes, contributing in this way in a very strong way to increase irritation. Remanent defect is so important that makes impossible bone grafting in this area, so we proceed to curette harmed sinusal mucosa, sending a sample for histological evaluation, and close with a Bichat fat pad pedicled flap. Postoperatory follow-up and evolution was favourable, achieving total remission of sympthomatology and complete recovery.

M. Bragado Novel; L. Berini Aytés; C. Gay Escoda

2010-01-01

224

Sinusitis maxilar iatrogénica tras la colocación de implantes: A propósito de un caso/ Iatrogenic maxillary sinusitis related to implant placement: A case report  

Scientific Electronic Library Online (English)

Full Text Available Abstract in spanish La perforación del suelo del seno maxilar y de las fosas nasales durante la colocación de implantes en las crestas alveolares situadas por debajo no es un hecho infrecuente. Pequeñas comunicaciones producidas durante el fresado para la preparación del lecho implantario cierran espontáneamente, pero es un requisito indispensable para evitar futuras complicaciones que el implante quede estable, si no deberá ser retirado. Presentamos el caso de una mujer de 54 años de (more) edad que acude refiriendo cacosmia y halitosis permanentes y episodios esporádicos de dolor en la zona infraorbitaria derecha asociados a rinorrea purulenta, que no ceden a la administración de distintos antibióticos. Las pruebas radiológicas muestran tres implantes dentales en el primer cuadrante sustituyendo a 1.2, 1.3 y 1.6: el primero perforando la fosa nasal, y el tercero con el extremo apical en el interior del seno maxilar derecho con una imagen radioopaca bien delimitada asociada. Confirmada la existencia de una comunicación bucosinusal de más de dos años de evolución, y establecida esta como la causa del cuadro de sinusitis maxilar crónica que la paciente padece, se determina como plan de tratamiento la extracción de los tres implantes y la reconstrucción del plano óseo mediante un injerto de hueso autólogo de mentón. Al retirar el implante en posición 1.6 se observa material de aspecto resinoso adherido a toda su superficie, con fines probablemente retentivos, y que habrá contribuido en gran medida a incrementar el proceso irritativo local. El defecto remanente es tan importante en este sector que se hace imposible anclar un injerto óseo en este área, por lo que se legra la mucosa sinusal enferma a su través, enviando muestra para su posterior análisis anatomopatológico, y se consigue el cierre primario mediante un injerto pediculado de la bola adiposa de Bichat. Los controles postoperatorios fueron favorables consiguiendo de esta forma la remisión total de la sintomatología y la recuperación completa. Abstract in english Perforation of the floor of the maxillary sinus or nasal cavity during implant placement in the residual bone located below is not an infrequent situation. It's been strongly reported that slight membrane puncture while preparing implant bed does not play a significant role in clinical outcome, as it heals spontaneously, but it is an essential requirement that the implant remains intraoperatory stable. We present the case of a 54 yr. old woman that consulted in our office (more) referring permanent cacosmia and halitosis associated to sporadic episodes of pain and purulent rhinorrhea, that didn't ease to the administration of several different antibiotics. Radiological findings show three dental implants in the first quadrant replacing teeth 1.2, 1.3 and 1.6: first one piercing the nostril and the third one with its apical end completely into the right maxillary sinus with a delimitated radiopaque mass associated. Once confirmed the existency of an oroantral fistula and its involvement in the two-year evolution chronic sinusitis diagnosed, the treatment established included the extraction of the three implants and the simultaneous osseous reconstruction with an autologous bone chin graft. After the removal of implant 1.6, a composite resin-like material is found stuck to its surface with supposedly retentive purposes, contributing in this way in a very strong way to increase irritation. Remanent defect is so important that makes impossible bone grafting in this area, so we proceed to curette harmed sinusal mucosa, sending a sample for histological evaluation, and close with a Bichat fat pad pedicled flap. Postoperatory follow-up and evolution was favourable, achieving total remission of sympthomatology and complete recovery.

Bragado Novel, M.; Berini Aytés, L.; Gay Escoda, C.

2010-12-01

225

Basaloid squamous cell carcinoma of maxillary sinus and orbit. Case report  

Directory of Open Access Journals (Sweden)

Full Text Available Basaloid squamous cell carcinoma is a rarebut very aggressive type of carcinoma, whose mostcommon site is the upper respiratory and digestive system.This study presents a case of basaloid squamous cellcarcinoma in the maxillary sinus and orbit that wastreated at our department. This is a rare case due tothe patient’s young age, as well as the uncommon siteof occurrence.

George Gkinis; Constantinos Mourouzis; Michael Mezitis; George Rallis

2013-01-01

226

Tumor-to-tumor metastasis: maxillary sinus adenoid cystic carcinoma metastasizing to double primary lung adenocarcinoma.  

Science.gov (United States)

Tumor-to-tumor metastasis is a rare occurrence. The most frequent metastatic donor is lung cancer, and the most frequent recipient is renal cell carcinoma. Here we present a patient in whom lung cancer served as a metastatic recipient and maxillary sinus adenoid cystic carcinoma acted as a metastatic donor. This patient has double primary lung cancer, which increased the complexity of this case. PMID:20868783

Lin, Wei-Yang; Hsu, Wen-Hu

2010-10-01

227

Tumor-to-tumor metastasis: maxillary sinus adenoid cystic carcinoma metastasizing to double primary lung adenocarcinoma.  

UK PubMed Central (United Kingdom)

Tumor-to-tumor metastasis is a rare occurrence. The most frequent metastatic donor is lung cancer, and the most frequent recipient is renal cell carcinoma. Here we present a patient in whom lung cancer served as a metastatic recipient and maxillary sinus adenoid cystic carcinoma acted as a metastatic donor. This patient has double primary lung cancer, which increased the complexity of this case.

Lin WY; Hsu WH

2010-10-01

228

A case of radiation retinopathy following radiation for maxillary sinus carcinoma  

Energy Technology Data Exchange (ETDEWEB)

A 69-year-old male was treated by Linac irradiation totalling 50 Gy for carcinoma of the right maxillary sinus. After 27 months, his right eye developed severe radiation retinopathy with papilledema, retinal hemorrhages and soft exudates. Fluorescein angiography showed occlusion of inferior nasal retinal artery. He was treated by panretinal photocoagulation and systemic corticosteroid. Vitreous hemorrhage developed followed by neovascular glaucoma 6 months later. (author)

Taoka, Kaori; Arima, Mika; Uji, Yukitaka [Mie Univ., Tsu (Japan). School of Medicine; Miyamura, Naotaka

1996-07-01

229

[Complications and pitfalls by bone augmentation of maxillary sinus floor].  

UK PubMed Central (United Kingdom)

The article includes description of mistakes and complications occurring during sinus floor elevation procedure, in early post-operate period or late post-operate period. Recommendations have been made to eliminate and prevent their occurrence. The review summarizes data of Russian and foreign literature and our own clinical experience. Conclusions and practical recommendations for doctors have been formed based on the analysis of that data.

2013-01-01

230

Slow Resorption of Anorganic Bovine Bone by Osteoclasts in Maxillary Sinus Augmentation.  

UK PubMed Central (United Kingdom)

Purpose: Different biomaterials have been suggested for guided bone regeneration (GBR). These might show the ideal properties to let a new bone formation in the grafted area. Among these ideal features, it is essential their controlled resorption in order to be replaced for new vital bone. Bovine bone has been used widely as a good biomaterial for GBR, however there is still an interesting controversy about its resorbable capacity. In this sense, the objective of this study was to examine the behavior of anorganic bovine bone (ABB) in long-term maxillary sinus graft healing and study its relationship with morphological and morphometrical variables. Materials and Methods: Seventeen maxillary sinus augmentation procedures were performed in patients. Bone cores were obtained from implant receptor sites at 6 months, 3 years, and 7 years of implant placement for histological, morphometric, and immunohistochemical (tartrate resistant acid phosphatase [TRAP]/cathepsin K/CD68) studies. Results: The percentages of bone, ABB particles, connective tissue, osteocytes, and osteoblasts in maxillary sinus grafts were similar at 6 months, 3 years, and 7 years. A progressive and significant decrease was detected in osteoclasts (p?=?.05, Kruskal-Wallis test), TRAP and cathepsin K expression (p?=?.014 and p?=?.021, respectively), and osteoid lines (p?=?.038). Conclusion: According to these data, a decrease in osteoclasts over time may, partially, explain the ABB persistence observed in core biopsies. Further studies with more cases and different graft maturation times are required to elucidate the resorption rates and cell events underlying these phenomena.

Galindo-Moreno P; Hernández-Cortés P; Mesa F; Carranza N; Juodzbalys G; Aguilar M; O'Valle F

2012-02-01

231

[Clinical study of 36 cases with adenoid cystic carcinoma of the maxillary sinus].  

UK PubMed Central (United Kingdom)

OBJECTIVE: To study the clinical characters, management and the prognosis of patients with adenoid cystic carcinoma of the maxillary sinus. METHODS: The clinical data were analyzed retrospectively for 36 patients with adenoid cystic carcinoma of the maxillary sinus to evaluate the treatment results of different modalities. The contribution of every factors influencing on survival were also analyzed. Survival analysis was performed by life table method, comparison among/between groups was performed using log-rank test, and multivariate analysis was carried out using Cox proportional hazard model. RESULTS: The 5-year survival rate was 58.33% in all patients, while they were only 75.0% and 42.9% in stage III and stage IV lesions respectively. The 5-year survival rate of 66.7% was obtained in patients who received surgery combined with radiotherapy,71.4% and 12.5% respectively in those treated by surgery and by radiotherapy alone. Multivariate analysis indicated that stage, treatment modality, and the tumour residues in the primary treatment were the predict factors for the prognosis. CONCLUSIONS: Advanced adenoid cystic carcinoma should be treated by combined surgery and radiotherapy. Stage, treatment approach and short-term therapeutic response are the most important factors affecting the prognosis of the patients with adenoid cystic carcinoma of the maxillary sinus.

Liu TR; Chen FJ; Yang AK; Li QL; Guo ZM; Zhang Q; Zeng ZY

2008-01-01

232

Hydrodynamic ultrasonic maxillary sinus lift: review of a new technique and presentation of a clinical case.  

UK PubMed Central (United Kingdom)

OBJECTIVES: Placing implants in the posterior maxillary area has the drawback of working with scarce, poor quality bone in a significant percentage of cases. Numerous advanced surgical techniques have been developed to overcome the difficulties associated with these limitations. Subsequent to reports on the elevation of the maxillary sinus through the lateral approach, there were reports on the use of the crestal approach, which is less aggressive but requires a minimal amount of bone. Furthermore, it is more sensitive to operator technique, as the integrity of the sinus membrane is checked indirectly. The aim of this paper is to review the technical literature on minimally invasive sinus lift and compare the advantages of different techniques with Intralift™, a new technique. STUDY DESIGN: The present study is a review of techniques used to perform minimally invasive sinus lift published in Cochrane, Embase and Medline over the past ten years and the description of the crestal sinus lift technique based on minimally invasive piezosurgery, with the example of a case report. RESULTS: Only eight articles were found on minimally invasive techniques for sinus lift. The main advantage of this new technique, Intralift, is that it does not require a minimum amount of crestal bone (indeed, the smaller the width of the crestal bone, the better this technique is performed). The possibility of damage to the sinus membrane is minimised by using ultrasound based hydrodynamic pressure to lift it, while applying a very non-aggressive crestal approach. CONCLUSIONS: We believe that this technique is an advance in the search for less traumatic and aggressive techniques, which is the hallmark of current surgery.

Velázquez-Cayón R; Romero-Ruiz MM; Torres-Lagares D; Pérez-Dorao B; Wainwright M; Abalos-Labruzzi C; Gutiérrez-Pérez JL

2012-03-01

233

Microbiology of acute and chronic maxillary sinusitis associated with an odontogenic origin.  

UK PubMed Central (United Kingdom)

OBJECTIVES: : To study the microbiology of sinusitis associated with odontogenic origin. METHODS: : Aspirates of 20 acutely and 28 chronically infected maxillary sinuses that were associated with odontogenic infection were processed for aerobic and anaerobic bacteria. RESULTS: : A total of 66 isolates were recovered from the 20 cases of acute sinusitis (3.3/specimen), 16 aerobic and facultatives, and 50 anaerobic. Aerobes alone were recovered in 2 (10%) specimens, anaerobes only in 10 (50%), and mixed aerobic and anaerobic bacteria in 8 (40%). The predominant aerobic were alpha-hemolytic streptococci (5), microaerophilic streptococci (4), and Staphylococcus aureus (2). The predominant anaerobes were anaerobic Gram-negative bacilli (22), Peptostreptococcus (12), and Fusobacterium spp. (9). A total of 98 isolates were recovered from the 28 cases of chronic sinusitis (3.5/patient): 21 aerobic and facultatives and 77 anaerobic. Aerobes were recovered in 3 (11%) instances, anaerobes only in 11 (39%), and mixed aerobic and anaerobic bacteria in 14 (50%). The predominant aerobes were alpha-hemolytic streptococci (7), microaerophilic streptococci (4), and S. aureus (5). The predominant anaerobes were Gram-negative bacilli (41), Peptostreptococcus (16), and Fusobacterium spp. (12). Thirteen beta-lactamase-producing bacteria (BLPB) were recovered from 10 (50%) patients with acute sinusitis and 25 BLPB from 21 (75%) patients with chronic sinusitis. No correlation was found between the predisposing odontogenic conditions and the microbiological findings. CONCLUSIONS: : These data illustrate the similar microbiology of acute and chronic maxillary sinusitis associated with odontogenic infection where anaerobic bacteria predominate in both types of infections.

Brook I

2005-05-01

234

Predictive factors for maxillary sinus augmentation outcomes: a case series analysis.  

UK PubMed Central (United Kingdom)

AIM: To determine the influence of different local and systemic factors on histologic, histomorphometric, and radiographic outcomes after maxillary sinus augmentation. MATERIALS AND METHODS: Fifty-two sinus augmentation procedures were performed. Grafting material consisted of a mixture of anorganic bovine bone (ABB) and autogenous bone. After 6 months, bone core biopsies were harvested from implant sites for histologic and histomorphometric analyses. Data regarding age, gender, type of edentulism, alcohol consumption, smoking habits, and history of periodontal disease were recorded and statistically analyzed. RESULTS: Histomorphometric analyses revealed the presence of 35.75% ± 16.42% of vital bone, 40.56% ± 16.23% of nonmineralized tissue, and 23.69% ± 18.23% of residual ABB particles. Radiographic vertical bone resorption inversely correlated with residual ABB. A significant difference in bone resorption patterns was observed for completely edentulous patients and for those with a history of periodontitis. Tobacco and alcohol negatively influenced vital bone formation after sinus augmentation. Implant and prostheses survival after 2 years of functional loading was not directly affected by patient's individual habits. CONCLUSION: Certain patient-related variables such as history of periodontitis, type of edentulism, or smoking/drinking habits play an important role in bone graft maturation after maxillary sinus floor elevation.

Galindo-Moreno P; Moreno-Riestra I; Ávila-Ortiz G; Padial-Molina M; Gallas-Torreira M; Sánchez-Fernández E; Mesa F; Wang HL; O'Valle F

2012-10-01

235

[Decompensated sinusitis complicated by cancer of the nasal cavity and the maxillary sinus].  

UK PubMed Central (United Kingdom)

This paper was designed to illustrate the probability of the development of an oncological disease of the nasal cavity and the paranasal sinuses in young subjects presenting with long-standing decompensated chronic sinusitis; also, it demonstrates the possibility of long-term remission after surgical elimination of the inflammatory process. A 28 year-old patient is described having decompensated chronic pansinusitis complicated by sepsis and secondary suppurative dacryocystitis. Multiple surgical interventions on several paranasal sinuses for the treatment of this pathology proved inefficient and were followed by sanation rhinosinusotomy with the simultaneous removal of the malignant tumour. The long-term monitoring of paranasal sinus condition after radical pansinusotomy and ablation of the tumour followed by a course of radiotherapy gave evidence of the malignant process with simultaneous elimination of inflammatory changes in paranasal sinuses.

Limanski? SS

2011-01-01

236

Histomorphometric analysis of maxillary sinus augmentation using an alloplast bone substitute.  

UK PubMed Central (United Kingdom)

PURPOSE: To evaluate the regenerative potential of a fully synthesized homogenous hydroxyapatite:?-tricalcium phosphate 60:40 alloplast material in sinus lift procedures. MATERIALS AND METHODS: Hydroxyapatite:?-tricalcium phosphate was used for sinus floor augmentation. After 9 months, 12 biopsies were taken from 12 patients. Routine histologic processing was performed and specimens were analyzed using a light microscope and a digital camera. RESULTS: Histologic evaluation showed 26.4% newly formed bone, 27.3% residual graft material, and 46.3% bone marrow. The osteoconductive index was 33.5%. CONCLUSIONS: Hydroxyapatite:?-tricalcium phosphate 60:40 alloplast material was found to be biocompatible and osteoconductive in maxillary sinus augmentation procedures.

Kolerman R; Goshen G; Joseph N; Kozlovsky A; Shetty S; Tal H

2012-08-01

237

The Prevalence of Concha Bullosa and Nasal Septal Deviation and Their Relationship to Maxillary Sinusitis by Volumetric Tomography  

Directory of Open Access Journals (Sweden)

Full Text Available The objective of this study was to determine the prevalence of concha bullosa and nasal septal deviation and their potential relationships to maxillary sinusitis. 883 CT scans taken at Creighton University School of Dentistry from 2005 to 2008 were retrospectively reviewed for the presence of concha bullosa, nasal septal deviation, and maxillary sinusitis. 67.5% of patients exhibited pneumatization of at least one concha, 19.4% of patients had a deviated septum, and 50.0% had mucosal thickening consistent with maxillary sinusitis. 49.3% of patients who had concha bullosa also had evidence of maxillary sinusitis. Only 19.5% of patients with concha bullosa also had nasal septal deviation, whereas 19.7% of patients with sinusitis also presented with nasal septal deviation. Although concha bullosa is a common occurrence in the nasal cavity, there did not appear to be a statistically significant relationship between the presence of concha bullosa or nasal septal deviation and maxillary sinusitis.

Kyle D. Smith; Paul C. Edwards; Tarnjit S. Saini; Neil S. Norton

2010-01-01

238

The prevalence of concha bullosa and nasal septal deviation and their relationship to maxillary sinusitis by volumetric tomography.  

Science.gov (United States)

The objective of this study was to determine the prevalence of concha bullosa and nasal septal deviation and their potential relationships to maxillary sinusitis. 883 CT scans taken at Creighton University School of Dentistry from 2005 to 2008 were retrospectively reviewed for the presence of concha bullosa, nasal septal deviation, and maxillary sinusitis. 67.5% of patients exhibited pneumatization of at least one concha, 19.4% of patients had a deviated septum, and 50.0% had mucosal thickening consistent with maxillary sinusitis. 49.3% of patients who had concha bullosa also had evidence of maxillary sinusitis. Only 19.5% of patients with concha bullosa also had nasal septal deviation, whereas 19.7% of patients with sinusitis also presented with nasal septal deviation. Although concha bullosa is a common occurrence in the nasal cavity, there did not appear to be a statistically significant relationship between the presence of concha bullosa or nasal septal deviation and maxillary sinusitis. PMID:20862205

Smith, Kyle D; Edwards, Paul C; Saini, Tarnjit S; Norton, Neil S

2010-08-24

239

Maxillary sinusitis: 1752 cases at the ear-nose-throat department of a teaching hospital in Cotonou, Benin.  

UK PubMed Central (United Kingdom)

OBJECTIVE: Maxillary sinusitis is a frequent ear-nose-throat (ENT) infection. The purpose of this study was to determine the prevalence of maxillary sinusitis in the ENT department of a teaching hospital in Cotonou, Benin, and to report the clinical findings, together with the results of complementary examinations and treatment outcomes. PATIENTS AND METHODS: This was a retrospective descriptive analysis of patients seen at our hospital from January 1, 2004 to December 31, 2008 for maxillary sinusitis. RESULTS: Over the 5-year study period, 1752 cases of maxillary sinusitis were treated in the ENT department of the teaching hospital, which works out to 350 or 351 cases per year. The overall prevalence was 19.3%. There were 759 patients (83.1%) aged 16-50years, and 984 patients (56.2%) were men. Factors favoring maxillary sinusitis were: dry season with dust (n=1051 patients, 60%); and atmospheric pollution (87.6%). Maxillary sinusitis was acute for 528 patients (30.1%) and chronic for 1224 patients (69.9%). A rhinogenic cause was identified for 960 patients (54.8%), an allergic cause for 668 patients (38.1%) and a dental cause for 96 patients (55.5%). In cases of chronic sinusitis, the infection was predominantly staphylococcal (29.3%) and pneumococcal (21.9%). Basically, medical treatment was given by combining local treatments for rhinopharyngeal disinfection or vasoconstriction. In cases with a dental origin, dental care was also delivered. For allergy-related sinusitis, nasal sprays with corticosteroids and antihistamine agents were prescribed. Outcomes were favorable for 89.7% of patients.

Yehouessi-Vignikin B; Vodouhe SJ

2013-06-01

240

Maxillary sinusitis: 1752 cases at the ear-nose-throat department of a teaching hospital in Cotonou, Benin.  

Science.gov (United States)

OBJECTIVE: Maxillary sinusitis is a frequent ear-nose-throat (ENT) infection. The purpose of this study was to determine the prevalence of maxillary sinusitis in the ENT department of a teaching hospital in Cotonou, Benin, and to report the clinical findings, together with the results of complementary examinations and treatment outcomes. PATIENTS AND METHODS: This was a retrospective descriptive analysis of patients seen at our hospital from January 1, 2004 to December 31, 2008 for maxillary sinusitis. RESULTS: Over the 5-year study period, 1752 cases of maxillary sinusitis were treated in the ENT department of the teaching hospital, which works out to 350 or 351 cases per year. The overall prevalence was 19.3%. There were 759 patients (83.1%) aged 16-50years, and 984 patients (56.2%) were men. Factors favoring maxillary sinusitis were: dry season with dust (n=1051 patients, 60%); and atmospheric pollution (87.6%). Maxillary sinusitis was acute for 528 patients (30.1%) and chronic for 1224 patients (69.9%). A rhinogenic cause was identified for 960 patients (54.8%), an allergic cause for 668 patients (38.1%) and a dental cause for 96 patients (55.5%). In cases of chronic sinusitis, the infection was predominantly staphylococcal (29.3%) and pneumococcal (21.9%). Basically, medical treatment was given by combining local treatments for rhinopharyngeal disinfection or vasoconstriction. In cases with a dental origin, dental care was also delivered. For allergy-related sinusitis, nasal sprays with corticosteroids and antihistamine agents were prescribed. Outcomes were favorable for 89.7% of patients. PMID:23747145

Yehouessi-Vignikin, B; Vodouhe, S-J

2013-06-01

 
 
 
 
241

Fixation tack penetration into the maxillary sinus: A case report of a guided bone regeneration procedure complication.  

UK PubMed Central (United Kingdom)

BACKGROUND: Guided bone regeneration (GBR) is an established and predictable procedure used to obtain adequate alveolar bone for the placement of dental implants. Anatomical challenges, such as the proximity of the maxillary sinus, may lead to complications during a GBR procedure. The purpose of this report is to present a unique and hitherto unreported complication of a GBR procedure, i.e., the penetration of a titanium fixation tack into the maxillary sinus. CASE REPORT: A unique GBR is presented, where a titanium tack penetrated the maxillary sinus with subsequent migration and loss. Attempts to locate the tack visually during the procedure were unsuccessful. The GBR procedure was aborted and dental radiographs were immediately obtained. The patient was completely asymptomatic during the healing period. Eight weeks later a cone beam computed tomography revealed a non-inflamed sinus with no pathology evident. However, the tack could not be visualized. An otolaryngology consultation was requested and the ensuing sinus endoscopy did not reveal any evidence of the penetrated tack. It is thought that the loose tack migrated completely out of the sinus through the nasal passage. CONCLUSIONS: The use of a pre-operative cone beam computed tomography (CBCT) would have allowed the clinician to assess the exact thickness of the lateral wall of the maxillary sinus and better determine the ideal placement location and/or the feasibility of using a fixation tack in the posterior upper jaw.

Harrison K; Iskandar I; Chien HH

2013-01-01

242

Sinus floor elevation via the maxillary premolar extraction socket with immediate implant placement: a case series.  

UK PubMed Central (United Kingdom)

BACKGROUND: When immediate implant placement is considered for teeth with close proximity to the sinus floor, apical extension of the osteotomy is significantly limited, and often a staged approach is used. Implant placement into fresh extraction sockets and sinus floor manipulation using bone-added osteotome sinus floor elevation with implant placement are techniques most often used independently or sequentially. Very few reports have described the combined use of immediate implant placement in fresh sockets and the bone-added osteotome sinus floor elevation technique. METHODS: We present five cases in which a maxillary premolar was extracted and an implant placed into the extraction site with simultaneous abfracture of the sinus floor using osteotomes. All teeth were extracted atraumatically, and sockets carefully debrided and checked for integrity of the walls. After ideal osteotomy preparation, particulate bone graft was placed in the osteotomy and appropriately sized osteotomes were used for sinus floor elevation. After sufficient elevation, implant placement was completed and particulate bone was packed in the bone-implant gap when indicated. RESULTS: All implants were restored after a minimum healing period of 6 months. At the time of final restoration, bone was seen surrounding the implants from the apical portion to the most coronal thread. All five implants healed without complications and were in function for periods ranging from 6 to 12 months. CONCLUSIONS: Immediate implant placement with simultaneous osteotome sinus floor elevation is an advantageous combination of two successfully used techniques. This combined approach can significantly reduce the treatment time for implant therapy in teeth with close sinus proximity and provide the operator with the ability to place implants of desired length.

Kolhatkar S; Bhola M; Thompson-Sloan TN

2011-06-01

243

An assessment of maxillary sinus and alveolar bone in cross-sectional linear tomogram of panorama  

International Nuclear Information System (INIS)

[en] To evaluate the precision of measurements taken of dental implants in bucco-lingually sectioned views of the maxilla by linear tomograms of the panorama and to assess the visibility of the inferior wall of the maxillary sinus. Eighty sites prepared with implants of gutta percha cone in the sockets of the upper premolars and molars of 10 dry skulls were radiographically examined using linear tomograms of panorama, and scanned coronally and axially by computed tomography. The differences in mm between the measurements in bucco-lingually sectioned images of maxillary alveolar bone and the true length and width of the implanted gutta percha cones were compared as mean values (mean) and standard deviation (SD) for each radiographic technique. Linear tomography of panorama was compared with computed tomography for visualization of the relationship between the inferior wall of maxillary sinus and the end of each implant. The deviations between the actual implant length and the measured values taken from the linear tomograms (0.44 ± 0.39 mm) was significantly less than the measured values from the multiplanar reconstructed images of the axially scanned computed tomogram (1.21 ± 0.90 mm). There was statistically significant difference (p

2003-01-01

244

Maxillary sinus augmentation using computer-aided design/computer-aided manufacturing (CAD/CAM) technology.  

UK PubMed Central (United Kingdom)

BACKGROUND: Maxillary sinus augmentation is a common method for increasing bone height for insertion of dental implants. In most cases, the graft is manually cut into a roughly appropriate shape by visual estimation during the operation; accordingly, the shape of the graft depends considerably on the experience of the surgeon. We have developed a computer-aided design/computer-aided manufacturing (CAD/CAM) technique to generate custom-made block grafts for sinus augmentation, and a customized cutting guide to precisely position the lateral wall and facilitate membrane elevation, using cone-beam computed tomography (CBCT). METHODS: Custom-made blocks of hydroxyapatite (HA) were preoperatively cut to the required shape, based on a three-dimensional (3D) simulation, using CAD/CAM technology. The custom-made HA blocks were used for sinus augmentation. RESULTS: Five patients underwent bilateral sinus elevation with custom-made HA blocks. Six months later, implants were placed. Two years after placement, all implants were in function. No clinical or prosthetic complications were encountered. CONCLUSIONS: We present a CAD/CAM technique for the fabrication of custom-made block grafts for sinus augmentation. Copyright © 2012 John Wiley & Sons, Ltd.

Mangano F; Zecca P; Pozzi-Taubert S; Macchi A; Ricci M; Luongo G; Mangano C

2013-09-01

245

Maxillary sinus augmentation with iliac autograft - a health-economic analysis.  

UK PubMed Central (United Kingdom)

PURPOSE: To estimate and compare the costs of maxillary sinus augmentation performed with autologous bone graft either from the iliac crest or from local bone harvested from the mandibula. To evaluate post-operative health-related quality-of-life parameters for patients subjected to sinus augmentation and iliac bone surgery. MATERIAL AND METHODS: The hospital records of 14 patients subjected to sinus augmentation with iliac autograft, and 14 patients treated with local autograft, were analysed with regard to costs related to surgery, hospitalization and sick leave. Post-operative health parameters were assessed with a questionnaire. RESULTS: Mean hospital costs, administration excluded, for sinus augmentation with iliac autograft was €3447. Policlinic treatment alternatives e.g. local bone autograft with or without bone substitutes, rendered costs of approximately 42% thereof. The loss of production for a worker was 41% of the total cost (€9285). With regard to health-related quality-of-life and post-operative morbidity, most of the patients had recovered 14 days after the iliac graft surgery. CONCLUSION: The cost for a sinus augmentation with iliac surgery exceeds that of a policlinic procedure manifold. Provided that a policlinic operation with local bone, with or without bone substitute, renders an adequate end result, the economic gain would be substantial and post-operative morbidity would be greatly reduced.

Truedsson A; Hjalte K; Sunzel B; Warfvinge G

2013-10-01

246

Effect of autologous growth factors in maxillary sinus augmentation: a systematic review.  

UK PubMed Central (United Kingdom)

PURPOSE: The aim of the present study was to systematically evaluate the effect of autogenous platelet concentrates on the clinical and histomorphometric outcomes of maxillary sinus augmentation. MATERIALS AND METHODS: MEDLINE, EMBASE, and Cochrane Central Register of Controlled Trials were searched using a combination of specific search terms. Furthermore, a hand searching of the relevant journals and of the bibliographies of reviews was performed. Prospective comparative clinical studies were included. Implant survival and histomorphometric outcomes were evaluated. RESULTS: Twelve studies were included. Four hundred forty-five sinus floor augmentation procedures were considered. No difference in implant survival was reported between test and control groups. Six studies reported a beneficial effect of platelet concentrates based on histomorphometric outcomes, while another six studies found no significant effect. A large heterogeneity was found regarding study design, surgical techniques, graft materials, clinical and histomorphometric outcome variables, and methods for preparing platelet concentrates. Favorable effects on soft tissue healing and postoperative discomfort reduction were often reported but not quantified. CONCLUSIONS: A clear advantage of platelet concentrates could not be evidenced. Standardization in the experimental design is needed in order to detect the true effect of platelet concentrates in maxillary sinus augmentation procedure, especially regarding postoperative quality of life.

Del Fabbro M; Bortolin M; Taschieri S; Weinstein RL

2013-04-01

247

Maxillary sinus hypoplasia with a patent ostiomeatal complex: A therapeutic dilemma.  

UK PubMed Central (United Kingdom)

OBJECTIVE: Maxillary sinus hypoplasia (MSH) is a radiologically detectable abnormality of the maxillary sinus that can be associated with sinusitis. Symptomatic MSH patients with a patent ostiomeatal complex (MSHPO) constitute a particular therapeutic challenge. METHODS: Ostiomeatal unit CT scans of 1293 patients with various sinonasal symptoms such as purulent discharge, postnasal drip, facial pain or headache were reviewed to determine the incidence, clinical symptoms and outcomes of MSHPO following medical treatment. RESULTS: Seventy-five cases (5.8%) were found to have MSHPO. Excluding patients with nasal septal deviation and positive allergy test, 37 of those 75 patients (2.86% of the original cohort) had MSHPO as the only definable sinonasal abnormality. Radiographs showed all patients had antral mucosal thickening. Postnasal drip (43.2%) was the most common symptom, followed by nasal obstruction (40.5%), purulent rhinorrhea (32.4%), hyposmia or anosmia (32.4%), cough (21.6%) and headache (18.9%). Medical treatment consisted of clarithromycin and ebastine for all patients. Medical treatment resulted in complete symptom resolution in only 24.3% of patients. CONCLUSIONS: Primary MSHPO was present in approximately 3% of patients with sinonasal symptoms. The response rate to medical treatment was poor. MSHPO should be considered a differential diagnosis in patients presenting with non-specific sinonasal complaints.

Jang YJ; Kim HC; Lee JH; Kim JH

2012-04-01

248

The role of maxillary sinus puncture on the diagnosis and treatment of patients with hospital-acquired rhinosinusitis.  

UK PubMed Central (United Kingdom)

UNLABELLED: Rhinosinusitis is one of the most common causes of fever of unknown origin in critically ill patients and should be systematically searched. OBJECTIVE: This study aims to evaluate the diagnostic and therapeutic effect of maxillary sinus puncture performed at the bedside in patients with infective rhinosinusitis hospitalized in an Intensive Care Unit of a high complexity care hospital. MATERIALS AND METHODS: This retrospective study looks into patients on mechanical ventilation with fever of unknown origin and signs of rhinosinusitis on CT images who were submitted to inferior meatus maxillary sinus puncture. RESULTS: The total study sample consisted of 27 patients (70.3% male; mean age 45.3 years). The most common Intensive Care Unit admission diagnoses were head trauma and stroke. CT scans revealed the maxillary (85.2%) and sphenoid (74.1%) sinuses were the most involved paranasal sinuses. Middle meatus purulent drainage was seen in 30.7% of the nasal cavities. Fever was reduced in 70.4% of the patients after puncture (p < 0.001). The most commonly found organisms in sinus aspirates were Pseudomonas aeruginosa and Acinetobacter baumannii. CONCLUSION: Maxillary sinus puncture performed at the bedside of the patients is an important diagnostic and therapeutic tool for critically ill patients.

Mendes Neto JA; Guerreiro VM; Hirai ER; Kosugi EM; Santos Rde P; Gregório LC

2012-07-01

249

Prevalence of incidental maxillary sinus findings in Italian orthodontic patients: a retrospective cone-beam computed tomography study.  

UK PubMed Central (United Kingdom)

OBJECTIVES: To determine the prevalence of incidental maxillary sinus findings in a large sample of orthodontic patients by cone-beam computed tomography (CBCT) with a wide field of view and assess the relationships of such abnormalities with age and gender. METHODS: Five hundred thirteen CBCT scans obtained for orthodontic diagnosis and treatment planning in a Northern Italian population (N = 513; 292 female and 221 male subjects; 1,026 maxillary sinuses) were studied. The frequencies of pseudocysts and mucosal thickening of the maxillary sinus were recorded. Logistic regression analysis was used to determine the influence of age and gender on these abnormalities. RESULTS: Pseudocysts were detected in 52 patients (10.1%) and 59 sinuses (5.75%). Mucosal thickening was observed in 206 patients (40.1%) and 258 sinuses (25.1%). Gender and age were significantly associated with pseudocysts (p = 0.027) and mucosal thickening (p < 0.001), respectively. CONCLUSIONS: Half of the orthodontic patients had incidental maxillary sinus findings. Men were more likely to show pseudocysts, and older patients (aged 41 - 60 years) were more likely to show mucosal thickening.

Gracco A; Incerti Parenti S; Ioele C; Alessandri Bonetti G; Stellini E

2012-12-01

250

Osteoradionecrosis of sphenoid and temporal bones in a patient with maxillary sinus carcinoma: A case report  

International Nuclear Information System (INIS)

A case of radionecrosis of sphenoid and temporal bones is reported. The patient received a combination of surgery, radiotherapy, and chemotherapy for his left maxillary sinus carcinoma. After the combined therapy, necrosis accompanying inflammation developed in the maxillary and temporal regions. Excision of the necrotic tissues was done, and the left ascending ramus of the mandible was resected because of persistent tumor mass at the left infratemporal fossa. Although the excision wound of the maxilla healed by epithelialization, an area of nonvital bone remained exposed in the temporal region, where progressive osteonecrosis with infection led to breakdown of the skin. The necrotic bones of the zygomatic arch and the sphenotemporal sutural region became visible through the skin defect, and computerized tomography scan revealed bone necrosis involving the inferolateral area and the base of the skull. Excision of the necrotic bone and reconstruction with sternocleidomastoid myocutaneous flap were performed.

1990-01-01

251

Osteoradionecrosis of sphenoid and temporal bones in a patient with maxillary sinus carcinoma: A case report  

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A case of radionecrosis of sphenoid and temporal bones is reported. The patient received a combination of surgery, radiotherapy, and chemotherapy for his left maxillary sinus carcinoma. After the combined therapy, necrosis accompanying inflammation developed in the maxillary and temporal regions. Excision of the necrotic tissues was done, and the left ascending ramus of the mandible was resected because of persistent tumor mass at the left infratemporal fossa. Although the excision wound of the maxilla healed by epithelialization, an area of nonvital bone remained exposed in the temporal region, where progressive osteonecrosis with infection led to breakdown of the skin. The necrotic bones of the zygomatic arch and the sphenotemporal sutural region became visible through the skin defect, and computerized tomography scan revealed bone necrosis involving the inferolateral area and the base of the skull. Excision of the necrotic bone and reconstruction with sternocleidomastoid myocutaneous flap were performed.

Inokuchi, T.; Sano, K.; Kaminogo, M. (Nagasaki Univ. School of Dentistry (Japan))

1990-09-01

252

Anatomic variations and lesions of the maxillary sinus detected in cone beam computed tomography for dental implants.  

UK PubMed Central (United Kingdom)

OBJECTIVE: To evaluate the presence of anatomic variations and lesions of the maxillary sinus in cone beam computed tomography (CBCT) of the maxilla required for dental implant planning. MATERIAL AND METHODS: This transversal prevalence study evaluated a sample of 500 consecutive CBCT exams. The inclusion criteria were CBCT exams of the maxilla required for dental implant planning. The CBCT exams were independently evaluated by two oral and maxillofacial radiologists who assessed the presence of anatomic variations and lesions of the maxillary sinus. As most of the CBCT exams did not allow the evaluation of the area close to the maxillary sinus roof, anatomic variations that take place at this site were not assessed. RESULTS: The anatomic variations detected were pneumatization (83.2%), antral septa (44.4%), hypoplasia (4.8%), and exostosis (2.6%). The identified lesions were mucosal thickening (?3 mm in 54.8% and >3 mm in 62.6%), polypoid lesions (21.4%), discontinuity of the sinus floor (17.4%), air-fluid level (4.4%), bone thickening of the maxillary sinus wall (3.8%), antroliths (3.2%), discontinuity of the sinus lateral wall (2.6%), sinus opacification (1.8%), and foreign body (1.6%). CONCLUSION: Anatomic variations and lesions of the maxillary sinus were common findings in CBCT exams of the maxilla required for dental implant planning. As some of these conditions can modify dental implant planning and must require specialized treatment, its recognition is noteworthy in dental practice, and especially in implantology. The amount and significance of the anatomic variations and lesions detected in this study reinforces the importance of computed tomography in preoperative dental implant planning.

Lana JP; Carneiro PM; Machado Vde C; de Souza PE; Manzi FR; Horta MC

2012-12-01

253

Computed tomography imaging of the maxillary and ethmoid sinuses in children with short-duration purulent rhinorrhea.  

UK PubMed Central (United Kingdom)

INTRODUCTION: Adults with a common cold often have paranasal sinus effusions detected by computed tomographic (CT) scans. There are no comparable data for children. The purpose of this study was to document the sinus CT findings in children with short-duration purulent rhinorrhea. DESIGN: Thirty children, 3 to 12 years of age (median age, 7 years), with purulent rhinorrhea for a mean duration of 5 days (and always less than 9 days) were enrolled in the study. The children were otherwise well. Institutional Review Board (IRB)-approval was obtained before enrollment of the first patient. Informed written consent was obtained from each child's parent. CT imaging of the maxillary and ethmoid sinuses was obtained on the day of the initial visit (occasionally, the following day). Follow-up CT scans were obtained from cooperative children/parents, 3 to 4 weeks later. RESULTS: Opacification or an air/fluid level in the maxillary sinuses was seen in 27 (90%) of 30 study children at study entry. Ethmoid sinuses were not opacified without opacification of a maxillary sinus. Three weeks later, 24 of 27 study children, who had positive CT scans on study entry, improved clinically. Of 17 follow-up CT scans, 10 (58%) normalized, 4 had improvement of bilateral disease, and 3 improved with unilateral disease. None appeared worse than baseline. CONCLUSIONS: Pansinus opacification (ethmoid and maxillary sinuses), on CT scans in children with short-duration purulent nasal drainage was seen in 70% of children. An additional 20% had isolated maxillary sinus effusions (10% had no effusion). Three-week follow-up CT scans on 17 children were normal in 60% and improved (partial clearance) in 40%. In this patient population, the decision to treat with antibiotics should be made on clinical grounds alone.

Schwartz RH; Pitkaranta A; Winther B

2001-02-01

254

Histopatologia da lâmina própria do seio maxilar na rinossinusite crônica/ Histopathology of maxillary sinus lamina propria in chronic rhinosinusitis  

Scientific Electronic Library Online (English)

Full Text Available Abstract in portuguese A rinossinusite crônica é definida de modo simplificado como uma inflamação crônica da mucosa nasossinusal. OBJETIVO: Na tentativa de entender o porquê das falhas terapêuticas. FORMA DE ESTUDO: Caso-controle. MATERIAL E MÉTODO: Decidimos estudar as alterações inflamatórias ultraestruturais encontradas na lâmina própria do seio maxilar de 13 pacientes portadores de rinossinusite crônica (RSC) e polipose nasossinusal (PNS), submetidos a tratamento cirúrgico. (more) Biópsias da parede súpero-lateral do seio maxilar desses pacientes foram colhidas durante o ato operatório e, após preparação, observadas através de microscopia eletrônica de transmissão. RESULTADO: Na análise dos dados obtidos, observou-se cinco padrões de resposta inflamatória nas lâminas próprias estudadas inflamatório crônico. Processo inflamatório agudo - 1 caso; processo inflamatório não agudo e não crônico - 5 casos; processo inflamatório crônico - 2 casos; processo inflamatório desorganizado - 4 casos; processo inflamatório indeterminado - 1 caso. Concluindo, a análise dos resultados mostrou que a lâmina própria do seio maxilar desses pacientes esteve infiltrada por células inflamatórias, sem predomínio específico de qualquer elemento celular. Elementos glandulares não foram observados nos casos estudados e a fibrose foi notada em quase metade deles, com intensidade variada e localização preferencial logo abaixo do epitélio. CONCLUSÃO: Na situação vista, o processo inflamatório não seguiu as etapas normais de evolução, mostrou marcante desorganização do processo inflamatório, dificuldade em caminhar até a resolução do quadro, acompanhando a mesma dificuldade de resolução clínica nos pacientes. Abstract in english Chronic rhinosinusitis is defined in a simplified manner as chronic inflammation of the rhinosinusal mucosa. AIM: In an attempt to understand the reason for treatment failure. STUDY DESIGN: Case-control. MATERIAL AND METHOD: We decided to study the ultrastructural inflammatory changes detected in the lamina propria of the maxillary sinus of 13 patients with chronic rhinosinusitis and nasosinusal polyposis submitted to surgical treatment. Biopsies of the superolateral wall (more) of the maxillary sinus were obtained from these patients during the surgical act and, after preparation, were observed by transmission electron microscopy. RESULTS: Analysis of the data obtained showed five patterns of inflammatory response in the lamina propria studied. Acute inflammatory process - 1 case; non-acute and non-chronic inflammatory process - 5 cases; chronic inflammatory process - 2 cases; disorganized inflammatory process - 4 cases; indeterminate inflammatory process - 1 case. Analysis of the results showed that the lamina propria of the maxillary sinus of these patients was infiltrated with inflammatory cells without the predominance of any particular cell element. Glandular elements were not observed in the cases studied and fibrosis was noted in almost half of them, of varying intensity and preferentially localized immediately below the epithelium. CONCLUSION: In the situation observed the inflammatory process did not follow the normal stages of evolution and showed marked disorganization, with difficulty in progressing to resolution of the picture, thus explaining the difficulties of patients refractory to clinical and surgical treatment.

Sarreta, Sabrina Maria de Castro; Dorgam, João Vicente; Souza, Bruno Beltrão de; Ferreira, Maria Dolores Seabra; Melo, Valder Rodrigues de; Anselmo-Lima, Wilma T.

2004-01-01

255

Histopatologia da lâmina própria do seio maxilar na rinossinusite crônica Histopathology of maxillary sinus lamina propria in chronic rhinosinusitis  

Directory of Open Access Journals (Sweden)

Full Text Available A rinossinusite crônica é definida de modo simplificado como uma inflamação crônica da mucosa nasossinusal. OBJETIVO: Na tentativa de entender o porquê das falhas terapêuticas. FORMA DE ESTUDO: Caso-controle. MATERIAL E MÉTODO: Decidimos estudar as alterações inflamatórias ultraestruturais encontradas na lâmina própria do seio maxilar de 13 pacientes portadores de rinossinusite crônica (RSC) e polipose nasossinusal (PNS), submetidos a tratamento cirúrgico. Biópsias da parede súpero-lateral do seio maxilar desses pacientes foram colhidas durante o ato operatório e, após preparação, observadas através de microscopia eletrônica de transmissão. RESULTADO: Na análise dos dados obtidos, observou-se cinco padrões de resposta inflamatória nas lâminas próprias estudadas inflamatório crônico. Processo inflamatório agudo - 1 caso; processo inflamatório não agudo e não crônico - 5 casos; processo inflamatório crônico - 2 casos; processo inflamatório desorganizado - 4 casos; processo inflamatório indeterminado - 1 caso. Concluindo, a análise dos resultados mostrou que a lâmina própria do seio maxilar desses pacientes esteve infiltrada por células inflamatórias, sem predomínio específico de qualquer elemento celular. Elementos glandulares não foram observados nos casos estudados e a fibrose foi notada em quase metade deles, com intensidade variada e localização preferencial logo abaixo do epitélio. CONCLUSÃO: Na situação vista, o processo inflamatório não seguiu as etapas normais de evolução, mostrou marcante desorganização do processo inflamatório, dificuldade em caminhar até a resolução do quadro, acompanhando a mesma dificuldade de resolução clínica nos pacientes.Chronic rhinosinusitis is defined in a simplified manner as chronic inflammation of the rhinosinusal mucosa. AIM: In an attempt to understand the reason for treatment failure. STUDY DESIGN: Case-control. MATERIAL AND METHOD: We decided to study the ultrastructural inflammatory changes detected in the lamina propria of the maxillary sinus of 13 patients with chronic rhinosinusitis and nasosinusal polyposis submitted to surgical treatment. Biopsies of the superolateral wall of the maxillary sinus were obtained from these patients during the surgical act and, after preparation, were observed by transmission electron microscopy. RESULTS: Analysis of the data obtained showed five patterns of inflammatory response in the lamina propria studied. Acute inflammatory process - 1 case; non-acute and non-chronic inflammatory process - 5 cases; chronic inflammatory process - 2 cases; disorganized inflammatory process - 4 cases; indeterminate inflammatory process - 1 case. Analysis of the results showed that the lamina propria of the maxillary sinus of these patients was infiltrated with inflammatory cells without the predominance of any particular cell element. Glandular elements were not observed in the cases studied and fibrosis was noted in almost half of them, of varying intensity and preferentially localized immediately below the epithelium. CONCLUSION: In the situation observed the inflammatory process did not follow the normal stages of evolution and showed marked disorganization, with difficulty in progressing to resolution of the picture, thus explaining the difficulties of patients refractory to clinical and surgical treatment.

Sabrina Maria de Castro Sarreta; João Vicente Dorgam; Bruno Beltrão de Souza; Maria Dolores Seabra Ferreira; Valder Rodrigues de Melo; Wilma T. Anselmo-Lima

2004-01-01

256

Metastasis of hepatocellular carcinoma presented as a tumor of the maxillary sinus and retrobulbar tumor  

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Full Text Available Introduction. Hepatocellular carcinoma (HCC) is the most frequent primary malignant tumor of the liver. It is usually seen in the 6th and 7th decades of life and chronic hepatitis B is the most frequent cause. Extrahepatic metastasis of HCC is an indicator of a poor prognosis and the most common sites are lungs, bones, lymph nodes, kidneys and adrenal glands. We reported a case of isolated metastasis in the right maxilla, which had been found initially, before the tumor in the liver was diagnosed. Case report. A 70-year-old man underwent dental surgery of the upper right molar. Prolonged bleeding control was difficult for up to two weeks, so the biopsy was performed. Histopathological analysis revealed a metastatic hepatocellular carcinoma. Computerized tomography (CT) of the abdomen revealed a diffusely heterogeneous liver parenchyma with irregular borders and two foci of mass lesions. There were metastasis in the spleen and also two pathological retroperitoneal lymph nodes were detected, but no ascit, liver cirrhosis, cholestasis or portal vein thrombosis were seen. CT of the orbital and maxillary regions revealed a tumor mass in the right maxillary sinus, spreading to the alveolar sinus, nasal cavity and partially infratemporal space. A tumor mass was in the right orbit as well, infiltrating the surrounding bones and muscles. Clinically, there was proptosis of the right eye accompanied by amaurosis. The treatment started with chemotherapy based on 5-fluorouracil (sorafenib was not available). After three cycles, control CTs showed a stable disease in the liver, but progression in the right maxillary sinus and orbit. Enucleation of the right eye was performed and postoperative radiotherapy was planed. The patient deteriorated rapidly and died, about 6 months after the disease had been diagnosed. Conclusion. Extrahepatic metastasis of HCC represents a progressive phase of the disease with poor prognosis, so the main aim of the treatment should be palliation and care of symptoms.

Kolarevi? Daniela; Tomaševi? Zorica; Bori?i? Ivan; Raši? Dejan M.; An?eli?-Deki? Nataša; Milovanovi? Zorka; Jeli? Svetislav

2011-01-01

257

A comparative study of dog models for osteotome sinus floor elevation and dental implants in posterior maxilla subjacent to the maxillary sinus.  

UK PubMed Central (United Kingdom)

OBJECTIVE: The objective of this study was to investigate the suitability of beagles and Labrador retrievers as animal models for osteotome sinus floor elevation (OSFE) and dental implants in posterior maxilla subjacent to sinus. STUDY DESIGN: Ten beagles and 8 Labrador retrievers were included. Their posterior maxillas subjacent to the sinus were studied by a gross survey, CT scan, and histologic analysis. RESULTS: In the posterior maxilla subjacent to sinus, the bone height was significantly higher for Labrador retrievers than for beagles (P < .05). There was no significant difference in sinus size from the coronal section and its location from the sagittal section (P > .05) between Labrador retrievers and beagles. CONCLUSIONS: As an animal model, the Labrador is more suitable for OSFE and dental implants in posterior maxilla subjacent to sinus. The midpoint of the maxillary fourth premolar is an ideal site for implantation.

Liu N; Sun F; Xu C; Lin T; Lu E

2013-03-01

258

Basal cell adenocarcinoma of the minor salivary glands involving palate and maxillary sinus.  

Science.gov (United States)

Basal cell adenocarcinoma (BCAC) is a rare neoplasm accounting for only 2.9% of all salivary gland neoplasms. BCAC involving palatal minor salivary glands are exceedingly rare, and only 10 cases have been reported in the literature. The treatment of choice is surgical excision. Here, we report a case of a 55-year-old male patient with massive BCAC of palatal minor salivary gland extending into the maxillary sinus. This is the first case of BCAC treated by radiotherapy followed by chemotherapy. A follow-up check conducted after 14-months showed good prognosis. PMID:23878773

Sarath, Prathi Venkata; Kannan, N; Patil, Rajendra; Manne, Rakesh Kumar; Swapna, Beeraka; Suneel Kumar, K V

2013-05-31

259

Preservation of the orbital contents in cancer of the maxillary sinus  

International Nuclear Information System (INIS)

Tumor invasion of the periorbita, posterior ethmoid cells, or orbital apex is considered an absolute indication for orbital exenteration. Preservation of the orbital contents in selected cases can be applied safely to the treatment of primary maxillary sinus cancer. Patient complaints relating to the preserved eye were more commonly associated with radiation therapy than the method of reconstruction used. Reconstruction of the orbital floor with a skin graft, even when combined with radiation therapy, gave a functional eye in the majority of cases while not compromising the oncologic safety or the procedure

1982-01-01

260

Preservation of the orbital contents in cancer of the maxillary sinus  

Energy Technology Data Exchange (ETDEWEB)

Tumor invasion of the periorbita, posterior ethmoid cells, or orbital apex is considered an absolute indication for orbital exenteration. Preservation of the orbital contents in selected cases can be applied safely to the treatment of primary maxillary sinus cancer. Patient complaints relating to the preserved eye were more commonly associated with radiation therapy than the method of reconstruction used. Reconstruction of the orbital floor with a skin graft, even when combined with radiation therapy, gave a functional eye in the majority of cases while not compromising the oncologic safety or the procedure.

Larson, D.L.; Christ, J.E.; Jesse, R.H.

1982-06-01

 
 
 
 
261

Basal Cell Adenocarcinoma of the Minor Salivary Glands Involving Palate and Maxillary Sinus  

Science.gov (United States)

Basal cell adenocarcinoma (BCAC) is a rare neoplasm accounting for only 2.9% of all salivary gland neoplasms. BCAC involving palatal minor salivary glands are exceedingly rare, and only 10 cases have been reported in the literature. The treatment of choice is surgical excision. Here, we report a case of a 55-year-old male patient with massive BCAC of palatal minor salivary gland extending into the maxillary sinus. This is the first case of BCAC treated by radiotherapy followed by chemotherapy. A follow-up check conducted after 14-months showed good prognosis.

Sarath, Prathi Venkata; Kannan, N.; Patil, Rajendra; Manne, Rakesh Kumar; Swapna, Beeraka; Suneel Kumar, K. V.

2013-01-01

262

Anaplastic lymphoma kinase expression and prognosis in inflammatory myofibroblastic tumours of the maxillary sinus.  

Science.gov (United States)

Inflammatory myofibroblastic tumours (IMT) of the nasal cavity and nasal sinus are rare and, although over 50 cases have been reported in the English-language literature, their precise aetiology and biological behaviour have not been elucidated. Recent studies suggest that anaplastic lymphoma kinase (ALK)-positive tumours have a very low risk of metastasis, but ALK reactivity does not appear to correlate with recurrence. Between March 2002 and December 2008, we encountered three cases of maxillary sinus IMT and investigated them to determine the clinicopathological course, prognosis and immunohistochemical expression of ALK. Two of the patients died immunohisto chemically negative for ALK expression. IMT of the sino-nasal tract is rare and may undergo malignant transformation in a minority of cases. The three cases manifested progressive extension with bone destruction and multiple recurrences, and two cases had a fatal outcome and one case had high recurrence. PMID:20146901

Lu, Z-J; Zhou, S-H; Yan, S-X; Yao, H-T

263

Reconstruction of defects of maxillary sinus wall after removal of a huge odontogenic lesion using prebended 3D titanium-mesh and CAD/CAM technique.  

UK PubMed Central (United Kingdom)

A 63 year-old male with a huge odontogenic lesion of sinus maxillaris was treated with computer-assisted surgery. After resection of the odontogenic lesion, the sinus wall was reconstructed with a prebended 3D titanium-mesh using CAD/CAM technique. This work provides a new treatment device for maxillary reconstruction via rapid prototyping procedures.

Stoetzer M; Rana M; von See C; Eckardt AM; Gellrich NC

2011-01-01

264

Reconstruction of defects of maxillary sinus wall after removal of a huge odontogenic lesion using prebended 3D titanium-mesh and CAD/CAM technique.  

Science.gov (United States)

A 63 year-old male with a huge odontogenic lesion of sinus maxillaris was treated with computer-assisted surgery. After resection of the odontogenic lesion, the sinus wall was reconstructed with a prebended 3D titanium-mesh using CAD/CAM technique. This work provides a new treatment device for maxillary reconstruction via rapid prototyping procedures. PMID:22070833

Stoetzer, Marcus; Rana, Majeed; von See, Constantin; Eckardt, André M; Gellrich, Nils-Claudius

2011-11-09

265

[Influence of uncinate process on aerodynamic characteristics of nasal cavity and maxillary sinus].  

UK PubMed Central (United Kingdom)

OBJECTIVE: This study aimed to investigate the influence of uncinate process on air flow velocity, trace, distribution, air pressure, as well as the air flow exchange of nasal cavity and paranasal sinuses. METHODS: Fluent software was used to simulate two nasal cavity and paranasal sinus structures following CT scanning, one had normal nasal cavity, the another had the nasal cavity with uncinate process removed. Air flow velocity, pressure, distribution and trace lines were calculated and compared by Navier-Stokes equation and numerically visualized between two models. RESULTS: Air flow of two models in the common and middle meatus accounted for more than 50% and 30% of total nasal cavity flow. Flow velocity of two models were maximal in the common meatus, followed by the middle meatus. The maximal velocity existed on the left nasal district between limen nasi and head of inferior turbinate. The flow traces of two models were similar. In the normal model, the air flow velocity of the district around uncinate process was almost the same in inhale and exhale. In the model with the uncinate process removed, the air flow velocity of the district around uncinate process was faster, the air flow velocity in expiratory phase was quicker. Compared with the normal nasal cavity, there was more exchange of maxillary sinus in the model with cut uncinate process. CONCLUSIONS: In the view of flow dynamics, the uncinate process effects the air flow velocity of the district around uncinate process and the exchange of maxillary sinus, the contribution of nasal flow is connected with the morphosis of the uncinate process.

Xiong GX; Li JF; Zhan JM; Jiang GL; Rong LW; Xu G

2009-01-01

266

Maxillary sinus floor augmentation with injectable calcium phosphate cements: a pre-clinical study in sheep.  

UK PubMed Central (United Kingdom)

OBJECTIVES: The aim of this pre-clinical study was to evaluate the biological performance of two injectable calcium phosphate cement (CPC) composite materials containing poly(D,L-lactic-co-glycolic)acid (PLGA) microspheres with different properties in a maxillary sinus floor elevation model in sheep. MATERIALS AND METHODS: PLGA microspheres were made of either low molecular weight (~17 kDa) acid-terminated PLGA (PLGA(L-AT) ) or high molecular weight (~44 kDa) end-capped PLGA (PLGA(H-EC) ) and incorporated in CPC. Eight female Swifter sheep underwent a bilateral maxillary sinus floor elevation procedure via an extra-oral approach. All animals received both materials, alternately injected in the left and right sinus (split-mouth model) and a time point of 12 weeks was used. Analysis of biological performance was based on histology, histomorphometry, and evaluation of sequential fluorochrome labeling. RESULTS: Both types of CPC-PLGA composites showed biocompatibility and direct bone-cement contact. CPC-PLGA(L-AT) showed a significantly higher degradation distance compared to CPC-PLGA(H-EC) (1949 ± 1295 ?m vs. 459 ± 267 ?m; P = 0.0107). Further, CPC-PLGA(L-AT) showed significantly more bone in the region of interest (26.4 ± 10.5% vs. 8.6 ± 3.9% for PLGA(H-EC) ; P = 0.0009) and significantly less remaining CPC material (61.2 ± 17.7% vs. 81.9 ± 10.9% for PLGA(H-EC) ; P = 0.0192). CONCLUSIONS: Both CPC-PLGA(L-AT) and CPC-PLGA(H-EC) demonstrated to be safe materials for sinus floor elevation procedures in a large animal model, presenting biocompatibility and direct bone contact. In view of material performance, CPC-PLGA(L-AT) showed significantly faster degradation and a significantly higher amount of newly formed bone compared to CPC-PLGA(H-EC) .

Hoekstra JW; Klijn RJ; Meijer GJ; van den Beucken JJ; Jansen JA

2013-02-01

267

Cone beam CT evaluation of maxillary sinus septa prevalence, height, location and morphology in children and an adult population.  

UK PubMed Central (United Kingdom)

OBJECTIVE: The purpose of this study was to determine the prevalence, height, location and morphology of maxillary sinus septa in dentate, partially dentate and edentulous adults as well as in mixed dentition children using cone beam computed tomography (CBCT) for maxillary sinus surgical interventions. SUBJECTS AND METHODS: Five hundred and fifty-four sides in the CBCT scans of 272 patients (30 children and 242 adults) were retrospectively analyzed. The prevalence, location and morphology were assessed in axial, sagittal, cross-sectional and panoramic 3-dimensional images. The height of septa was measured with the angle between the direction of the septum and median palatine suture. The differences among age, localization and measurements were statistically analyzed. RESULTS: The prevalence of maxillary sinus segments with septa was 58%. There were a total of 13 (3.2%) septa of completely edentulous (CE), 198 (53.9%) septa of edentate and 14 (3.8%) septa of the mixed dentition maxillary segments. The location of septa observed in all study groups demonstrated a greater prevalence (69.1%) in the middle region than in the anterior and posterior regions. No statistically significant differences were observed with regard to gender or age, for septum height (p > 0.05). However, maxillary sinus septa are higher in partially edentulous patients than edentate and CE ones (p < 0.05). CONCLUSION: Septa of various heights and courses developed in all parts of the maxillary sinus, therefore to prevent possible complications during sinus surgery, extensive evaluation with an appropriate radiographic technique was indispensable.

Orhan K; Kusakci Seker B; Aksoy S; Bayindir H; Berbero?lu A; Seker E

2013-01-01

268

Aberrant Anatomical Variation of Maxillary Sinus Mimicking Periapical Cyst: A Report of Two Cases and Role of CBCT in Diagnosis  

Science.gov (United States)

Most periapical lesions are associated with microorganisms from infected root canal systems. Maxillary sinus can pose a diagnostic dilemma radiographically because of its anatomical variation which can mimic a periapical pathosis. The aim of this study was to describe two cases of aberrant anatomical variation of the maxillary sinus that presented radiographic similarities to a periapical cyst in order to call the attention of clinicians to the fact that several different diseases are able to mimic endodontic periapical lesions. An accurate assessment of this morphology was made with the help of cone-beam computed tomography (CBCT).

Sekerci, Ahmet Ercan; Sisman, Yildiray; Etoz, Meryem; Bulut, Duygu Goller

2013-01-01

269

Clinical, histological and histomorphometrical study of maxillary sinus augmentation using cortico-cancellous fresh frozen bone chips.  

UK PubMed Central (United Kingdom)

BACKGROUND: Insufficient bone volume in the posterior maxilla can be a major problem when placing dental implants. One of the goals of sinus augmentation procedures is the creation of sufficient volume of vital bone for the subsequent insertion and complete osseointegration of implants placed in the posterior maxilla. The aim of the present study was a clinical, histological and histomorphometrical analysis of maxillary sinus augmentation using human fresh frozen bone (FFB) allografts for maxillary sinus lift augmentation procedures. METHODS: Fifteen patients were treated with maxillary sinus augmentation using FFB. After three months, a bone biopsy was taken before implant placement in order to evaluate the healed bone from a histological and histomorphometrical point of view. After further three months, all implants were osseointegrated according to radiographic and clinical examinations. Abutment connection was performed and the patients received prosthetic restoration of the missing teeth. RESULTS: Histologically all the specimens showed signs of active remodelling and all the tissues were free of inflammatory cells. After 12 months of assessment, no implants had failed. CONCLUSION: Our findings suggest that FFB is a biocompatible material that can be successfully used for maxillary sinus augmentation.

Acocella A; Bertolai R; Nissan J; Sacco R

2011-04-01

270

[Cholesterol granuloma in paranasal sinus. An unfrequent pseudotumor in maxillary sinuses].  

Science.gov (United States)

The cholesterol granuloma is well known in the middle ear, in the mastoid antrum and the air cells of temporal bone, mostly related to a chronic infectious process. There are other localizations such as the pleura, lung, pericardium, kidneys, arterial wall, nerves, brain, testicles, lymphatic ganglion and in the paranasals sinuses. Its localization in the mediofacial area is very unfrequent, having only been described 44 cases up to the year 2002. We present a 42 year-old patient, who required surgical treatment because of a increase in the volume of area her left facial of one month's old. It resulted to be secundary to an expansion of the maxilar sinus, such as seen on the computerized tomography carried out on the patient. The diagnosis was cholesterol granuloma, performed, through the anatomo-pathology study. We review the litterature on this subject and analyse the possible etiologic cause of this lesion, its clinic, diagnostic methodology and treatment. PMID:16001696

García de Hombre, Alina María; Pérez Peñate, Armando

2005-01-01

271

Retrospective evaluation of surgical intervention following chemo- and radiotherapy of maxillary sinus cancers  

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During the past 15 years, 30 patients with squamous cell carcinomas of the maxillary sinus were treated by modified partial maxillectomy following chemo- and radiotherapy, taking care to preserve facial contour and function as far as possible. Follow-up evaluation showed that local recurrences, and regional lymph node and distant metastases were more frequent in T4 patients than in T3 patients. Evaluation of the histopathological effects of preoperative chemo- and radiotherapy at the time of surgery showed that T4 patients tended to have a poorer response to the treatment than T3 patients. Analysis according to the direction of primary tumor extension showed that the incidence of local recurrence was higher in the superolateral type, whereas that of regional lymph node metastasis was higher in the medial type. The cumulative 5-year survival was high (72.2%) in Stage III patients and low (22.5%) in Stage IV patients. The overall rate was 55.4%. The treatment produced relatively good outcomes in T3 patients but poor outcomes in T4 patients. These findings indicate that T4 carcinoma of the maxillary sinus must be managed initially by a combination of irradiation and multi-chemotherapeutic drugs, and then treated by more extensive surgical resection. (author).

Kudo, Keigo; Satoh, Yumi; Endo, Mitsuhiro; Segawa, Kiyoshi; Fukuta, Yoshiyasu; Yokota, Mitsumasa; Fujioka, Yukio (Iwate Medical Univ., Morioka (Japan). School of Dentistry)

1992-03-01

272

Three-dimensional images contribute to the diagnosis of mucous retention cyst in maxillary sinus  

Science.gov (United States)

Objective: To evaluate the detection of mucous retention cyst of maxillary sinus (MRCMS) using panoramic radiography and cone beam computed tomography (CBCT). Study Design: A digital database with 6,000 panoramic radiographs was reviewed for MRCMS. Suggestive images of MRCMS were detected on 185 radiographs, and patients were located and invited to return for follow-up. Thirty patients returned, and control panoramic radiographs were obtained 6 to 46 months after the initial radiograph. When MRCMS was found on control radiographs, CBCT scans were obtained. Cysts were measured and compared on radiographs and scans. The Wilcoxon, Spearman and Kolmorogov-Smirnov tests were used for statistical analysis. The level of significance was set at 5%. Results: There were statistically significant differences between the two methods (p<0.05): 23 MRCMS detected on panoramic radiographs were confirmed by CBCT, but 5 MRCMS detected on CBCT images had not been identified by panoramic radiography. Eight MRCMS detected on control radiographs were not confirmed by CBCT. MRCMS size differences from initial to control panoramic radiographs and CBCT scans were not statistically significant (p= 0.617 and p= 0.626). The correlation between time and MRCMS size differences was not significant (r = -0.16, p = 0.381). Conclusion: CBCT scanning detect MRCMS more accurately than panoramic radiography. Key words:Mucous cyst, maxillary sinus, panoramic radiograph, cone beam computed tomography.

Donizeth-Rodrigues, Cleomar; Fonseca-Da Silveira, Marcia; Goncalves-De Alencar, Ana H.; Garcia-Santos-Silva, Maria A.; Francisco-De-Mendonca, Elismauro

2013-01-01

273

Antioxidant levels in the nasal mucosa of patients with chronic sinusitis and healthy controls.  

UK PubMed Central (United Kingdom)

BACKGROUND: Imbalances between oxidant formation and antioxidative defense are associated with the pathogenesis of several chronic inflammatory disorders of the respiratory tract. Therefore, a role of oxidative stress in chronic upper airway tract infections can be anticipated. OBJECTIVE: To determine if patients with chronic sinusitis demonstrate a reduced antioxidative tissue status. DESIGN: The levels of 3 biologically important antioxidants, reduced glutathione and oxidized glutathione, uric acid, and vitamin E, were determined biochemically in mucosal biopsy specimens from the uncinate process of patients with chronic sinusitis and healthy controls. SUBJECTS: Inflamed mucosa samples were obtained from 9 patients with chronic sinusitis during functional endoscopic sinus surgery. Normal mucosa samples were collected from 10 healthy controls during surgery for nasal obstruction. RESULTS: The data (presented as mean +/- SD) show a significant reduction (P < or = .05) of reduced glutathione levels (0.3 +/- 0.1 mumol/g wet weight) and uric acid levels (2.7 +/- 0.4 mumol/g wet weight) in mucosa samples obtained from patients with chronic sinusitis compared with healthy controls (0.6 +/- 0.2 and 3.4 +/- 0.6 mumol/g wet weight, respectively). No difference was found in oxidized glutathione (24 +/- 8 vs 25 +/- 15 nmol/g wet weight) and vitamin E (20.5 +/- 7.9 vs 22.5 +/- 6.9 nmol/g wet weight) levels between both groups. CONCLUSIONS: Decreased levels of both reduced glutathione and uric acid in patients with chronic sinusitis lead to a diminished antioxidant defense, which may be associated with the pathogenesis of upper respiratory tract disorders. The vitamin E level seems less important. This finding may offer perspectives for pharmacotherapeutic intervention with antioxidants.

Westerveld GJ; Dekker I; Voss HP; Bast A; Scheeren RA

1997-02-01

274

Mixoma odontogênico maxilar: relato de caso clínico comprometendo seio maxilar Maxillary odontogenic myxoma involving the maxillary sinus: case report  

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Full Text Available O objetivo deste artigo é relatar um caso de mixoma odontogênico no lado direito da maxila com envolvimento do seio maxilar e fazer uma revisão de literatura envolvendo aspectos clínicos, radiográficos, histológicos e de tratamento desta patologia. O mixoma odontogênico dos maxilares é uma lesão benigna, sem preferência por sexo, raça ou localização, com características clínicas e radiográficas extremamente variadas, o que amplia demasiadamente o número de patologias tumorais do sistema estomatognático com as quais pode ser feito o diagnóstico diferencial.The aim of this paper is to report a case of odontogenic myxoma that affected the right maxilla and maxillary sinus. We have also reviewed the literature in regards of the clinical, radiographic, histological and treatment aspects of this pathology. Odontogenic myxomas of the maxillofacial region are benign lesions, without preference for gender, race or location, with extremely varied clinical and radiographic characteristics, thus increasing the number oral and maxillofacial region tumors with which we can make the differential diagnosis.

Allan Ulisses Carvalho de Melo; Sérgio Bartolomeu de Farias Martorelli; Paulo Henrique de Holanda Cavalcanti; Luiz Alcino Gueiros; Fernando de Oliveira Martorelli

2008-01-01

275

Mixoma odontogênico maxilar: relato de caso clínico comprometendo seio maxilar/ Maxillary odontogenic myxoma involving the maxillary sinus: case report  

Scientific Electronic Library Online (English)

Full Text Available Abstract in portuguese O objetivo deste artigo é relatar um caso de mixoma odontogênico no lado direito da maxila com envolvimento do seio maxilar e fazer uma revisão de literatura envolvendo aspectos clínicos, radiográficos, histológicos e de tratamento desta patologia. O mixoma odontogênico dos maxilares é uma lesão benigna, sem preferência por sexo, raça ou localização, com características clínicas e radiográficas extremamente variadas, o que amplia demasiadamente o número d (more) e patologias tumorais do sistema estomatognático com as quais pode ser feito o diagnóstico diferencial. Abstract in english The aim of this paper is to report a case of odontogenic myxoma that affected the right maxilla and maxillary sinus. We have also reviewed the literature in regards of the clinical, radiographic, histological and treatment aspects of this pathology. Odontogenic myxomas of the maxillofacial region are benign lesions, without preference for gender, race or location, with extremely varied clinical and radiographic characteristics, thus increasing the number oral and maxillofacial region tumors with which we can make the differential diagnosis.

Melo, Allan Ulisses Carvalho de; Martorelli, Sérgio Bartolomeu de Farias; Cavalcanti, Paulo Henrique de Holanda; Gueiros, Luiz Alcino; Martorelli, Fernando de Oliveira

2008-06-01

276

Efficacy and safety of cefdinir in the treatment of maxillary sinusitis.  

UK PubMed Central (United Kingdom)

Cefdinir is a new, extended-spectrum, orally active, third-generation cephalosporin that is resistant to bacterial beta-lactamase production. To evaluate efficacy and safety of the antibiotic in maxillary sinusitis, its use was compared with amoxicillin/clavulanate (amox/clav), which is a well-accepted beta-lactamase-resistant antibiotic. In this investigator-blinded multicenter phase III clinical study, 569 patients were randomly assigned to one of three treatment regimens: one daily dose of cefdinir 600 mg (OD), cefdinir 300 mg every 12 h (BD), and amox/clav 500/125 mg every 8 h. All antibiotics were administered orally for 10 days. Maxillary sinusitis was documented by typical clinical signs and symptoms and was confirmed by X-ray imaging. Before treatment, the genus and species of any pathogens were determined from sinus aspirates. Cultures were tested for beta-lactmase production and in vitro resistance to cefdinir and amox/clav. The effectiveness of antibiotic treatment was evaluated 7-14 days after therapy and whether or not recurrent clinical symptoms or persistent infection was determined 21-35 days post-therapy. The appearance of any adverse events was classified as associated or not associated with the medication of the study. Present findings showed that the in vitro susceptibility of pathogens to cefdinir and amox/clav was similar. Cefdinir OD or BD was therapeutically as effective as or better than amox/clav, although cefdinir BD was not as useful as amox/clav clinically. Cefdinir OD and BD and amox/clav were well tolerated. The statistical incidence of adverse events was the same among the three treatment groups, although cefdinir OD treatment had significantly fewer treatment discontinuations due to adverse events than BD and amox/clav.

Steurer M; Schenk P

2000-01-01

277

Maxillary sinus augmentation with autologous bone harvested from the lateral maxillary wall combined with bovine-derived hydroxyapatite: clinical and histologic observations.  

UK PubMed Central (United Kingdom)

OBJECTIVE: The aim of this study was to determine the clinical efficacy of a mixture of autologous bone harvested from the lateral wall of the maxilla using bone shavers and bovine-derived hydroxyapatite (HA) placed as a graft to elevate the maxillary sinus floor. The histological picture of tissue found in the sinus, the survival rate and the success of the implants were all evaluated. MATERIAL AND METHODS: A total of 90 titanium implants were placed in 34 patients. In all of them, the lateral maxillary wall was harvested as a particulate bone graft, subsequently mixed with bovine-derived HA and packed in the sinus cavity. The lateral access window was then covered with a bioresorbable porcine-derived collagen membrane. In 32 sinuses, a two-stage surgery was performed, while in the remaining 10 cases a one-stage surgery was carried out. In the two-stage approach, 14 randomly selected biopsies were obtained at the time of implant insertion after a healing period of 9 months. The histological specimens were histologically and histomorphometrically evaluated. RESULTS: One implant was lost, leading to a survival rate of 98.9%. The new bone consisted of lamellae of living bone contained osteocytes and in close contact with bovine bone particles that were partly infiltrated by newly formed bone. Bovine bone particle resorption could not be found. The histomorphometric analysis showed the following averages: 29% of newly formed bone and 21% of anorganic bovine bone. The marrow spaces made up the remaining 50% of the specimens. CONCLUSION: Sinus lift graft with autologous bone harvested from the maxillary lateral wall combined with demineralized bovine bone leads to a predictable outcome regarding the amount of bone formation in sinus floor augmentation.

de Vicente JC; Hernández-Vallejo G; Braña-Abascal P; Peña I

2010-04-01

278

Histomorphometric comparison of maxillary pristine bone and composite bone graft biopsies obtained after sinus augmentation.  

UK PubMed Central (United Kingdom)

INTRODUCTION: Sinus grafting is a technique oriented to facilitate implant placement in posterior atrophic maxillae. Several modifications of the original technique and a wide variety of materials have been proposed; most of them associated with implant survival rates. However, the quality of the bone obtained after the application of certain grafting materials has not been fully elucidated yet. The aims of this multicenter study were to analyse histomorphometrical samples obtained 6 months after sinus grafting using a composite graft consisting of anorganic bovine bone (ABB)+ autologous bone (AB), and to compare these samples with maxillary pristine bone biopsies. MATERIAL AND METHODS: Ninety maxillary sinus augmentations were performed for delayed implant placement (N = 90) in 45 consecutive patients (test group). Bone cores were harvested 6 months after grafting for histomorphometric and ultrastructural study. Control pristine bone biopsies were taken from the posterior maxilla of 10 patients (control). Bone radiographic changes were assessed up to 24 months after implant loading. RESULTS: The total mean values after analysis of test cores revealed a proportion of 46.08 + or - 16.6% of vital bone, 42.27 + or - 15.1% of non-mineralized connective tissue, and 37.02 + or - 25.1% of the remaining ABB particles. Significant bone remodeling activities were noticed in sinus grafting samples when compared with pristine bone. A statistically significant difference was observed in the number of osteoid lines between two groups, with higher values in the test one (15.1 + or - 11.48% vs. 2.5 + or - 2.2%, P = 0.0005). Ultrastructural study showed that vital trabecular bone was in intimal contact with ABB particles. Radiographic analysis revealed that the higher the proportion of remaining ABB, the lower the total vertical resorption of the graft. CONCLUSION: Sinus grafting constitutes an excellent model for the study of de novo bone formation patterns and graft consolidation, when a combination of different bone substitutes is applied. The combination of ABB+AB yields highly satisfactory outcomes from both a clinical and a histologic perspective.

Galindo-Moreno P; Moreno-Riestra I; Avila G; Fernández-Barbero JE; Mesa F; Aguilar M; Wang HL; O'Valle F

2010-01-01

279

Microbiologia dos seios maxilar e etmoidal em pacientes com rinossinusite crônica submetidos à cirurgia funcional endoscópica dos seios paranasais Microbiology of the maxillary and ethmoid sinuses in patients with chronic rhinosinusitis submitted to functional endoscopic sinus surgery  

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Full Text Available Estudos da microbiologia da rinossinusite crônica mostram a presença de microorganismos aeróbicos, anaeróbicos, fungos e vírus e sua incidência varia de acordo com cada estudo. Estes estudos nos guiam para a escolha do antimicrobiano mais adequado para eliminar o processo infeccioso, ajudando a restaurar a mucosa nasossinusal. FORMA DE ESTUDO: Clínico prospectivo. OBJETIVO: O objetivo deste trabalho foi estudar a microbiologia dos seios maxilar e/ou etmoidal de pacientes com rinossinusite crônica e com indicação de cirurgia funcional endoscópica dos seios paranasais. MATERIAIS E MÉTODOS: Durante a cirurgia coletamos, em 41 pacientes, secreção e/ou fragmento de mucosa dos seios maxilar e/ou etmoidal para realização de bacterioscopia, pesquisa direta de fungos, cultura para microorganismos aeróbios, anaeróbios e fungos. RESULTADOS: Identificou-se a presença de microorganismos aeróbios em 21 pacientes (51,2%), anaeróbios em 16 (39%) e fungos em 1 (2,4%). Na população estudada, apenas em 12 (29,2%) o microorganismo isolado foi considerado patogênico quando analisado junto à contagem semiquantitativa de leucócitos. O Staphylococcus coagulase-negativo e o Staphylococcus aureus foram os microorganismos mais freqüentes, em 5 (12,1%) e em 4 pacientes (9,75%) respectivamente. CONCLUSÃO: Este estudo revela que o Staphylococcus coagulase-negative e o Staphylococcus aureus foram os microorganismos mais freqüentes isolados nos pacientes com rinossinusite crônica.Chronic rhinosinusitis microbiology studies show the presence of aerobe and anaerobe microorganisms, fungus and virus and their incidence vary according to each study. These studies guide us on choosing the most adequate antimicrobial agent to eliminate the infectious process, thus, helping in restoring rhinosinusal mucosa. STUDY DESIGN: Clinical prospective. AIM: This work aimed at studying the microbiology of the maxillary and/or ethmoid sinuses of patients with chronic rhinosinusitis and with indication of functional endoscopic sinus surgery. MATERIALS AND METHODS: During surgery, we collected secretion and/or fragments of maxillary and/or ethmoid sinus mucosa from 41 patients to perform Gram stain, fungus direct research, aerobe and anaerobe microorganism culture and fungus culture. RESULTS: We identified the presence of aerobe microorganisms in 21 patients (51.2%), anaerobe microorganisms in 16 (39%) and fungus in 1 (2.4%). In the studied population, only 12 patients (29.2%) presented microorganisms considered pathogenic when analyzed together with the semi-quantitative leukocyte count. Staphylococcus coagulase-negative and Staphylococcus aureus were the most frequent microorganisms found, in 5 (12.18%) and in 4 (9.75%) patients respectively. CONCLUSION: This study reveals that Staphylococcus coagulase-negative and Staphylococcus aureus were the most frequent microorganisms isolated from patients with chronic rhinosinusitis.

Josiane Faria de Aguiar Nigro; Carlos Eduardo Nazareth Nigro; Silvio Antonio Monteiro Marone; Richard Louis Voegels

2006-01-01

280

Allograft for maxillary sinus floor augmentation: a retrospective study of 90 cases.  

UK PubMed Central (United Kingdom)

PURPOSE: The aim of this study is to demonstrate the clinical applicability and efficacy of an allograft for maxillary sinus augmentations in patients requiring placement of dental implants. PATIENTS AND METHODS: Sixty consecutive patients underwent a total of 90 sinus augmentations. Twenty-nine were women and 31 men, with a mean age of 54 years. Twenty-six patients received a bilateral procedure and 34 unilateral. All cases were treated with the lateral wall technique. Allograft consisted of demineralized freeze-dried blocks in 6 cases, particulate in 82 cases, and a combination of both in 2 cases. In 30 patients, it was combined with platelet-rich plasma. A total of 84 implants were inserted. Bone samples of grafted areas were obtained in two patients for histological examination. RESULTS: Seventy-three implants were clinically successful at the reentry time. Eleven implants in seven patients were removed between 15 days and 6 months after their placement. Seven of these implants were replaced and received prostheses as well, for an overall postloading success rate of 95.2%. Follow-up for all patients after final restoration was between 12 and 96 months. Specimen's histological evaluation revealed bone formation and evidence of inflammatory infiltrate. CONCLUSIONS: Based on the findings of this study, it can be suggested that the use of the demineralized freeze-dried bone allograft from the Banco de Huesos y Tejidos Fundación Cosme y Damian for sinus augmentation is effective and constitutes a feasible therapeutic alternative for implant placement.

Guerrero JS; Al-Jandan BA

2012-04-01

 
 
 
 
281

Physiology and pathophysiology of respiratory mucosa of the nose and the paranasal sinuses  

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Full Text Available In this review, anatomy and physiology of the respiratory mucosa of nose and paranasal sinuses are summarized under the aspect of its clinical significance. Basics of endonasal cleaning including mucociliary clearance and nasal reflexes, as well as defence mechanisms are explained. Physiological wound healing, aspects of endonasal topical medical therapy and typical diagnostic procedures to evaluate the respiratory functions are presented. Finally, the pathophysiologies of different subtypes of non-allergic rhinitis are outlined together with treatment recommendations.

Beule, Achim G.

2010-01-01

282

The Prevalence of Concha Bullosa and Nasal Septal Deviation and Their Relationship to Maxillary Sinusitis by Volumetric Tomography  

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The objective of this study was to determine the prevalence of concha bullosa and nasal septal deviation and their potential relationships to maxillary sinusitis. 883 CT scans taken at Creighton University School of Dentistry from 2005 to 2008 were retrospectively reviewed for the presence of concha...

Kyle D. Smith; Paul C. Edwards; Tarnjit S. Saini; Neil S. Norton

283

Septum en Seno Maxilar: Un Estudio de 91 Cirugías Consecutivas de Elevación de Piso Sinusal/ Septum on Maxillary Sinus: A Study in 91 Consecutive Surgeries of Maxillary Sinus Floor Elevation  

Scientific Electronic Library Online (English)

Full Text Available Abstract in spanish La elevación de piso sinusal maxilar ha sido ampliamente discutida y presenta altas tasas de éxito. El objetivo de esta investigación fue establecer la prevalencia de septum intrasinusal presente en cirugías consecutivas de elevación de piso sinusal y establecer su relación con las perforaciones de membrana sinusal. Noventa y un cirugías fueron realizadas en pacientes que presentaban indicación para instalar implantes dentales en maxila posterior; fueron incluidos (more) aquellos pacientes que presentaron documentos clínicos íntegros (ficha clínica, radiografías, entre otros) y que no presentasen contraindicación del procedimiento; las cirugías fueron realizadas con anestesia local o general y fueron rellenados con biomateriales o hueso autógeno. El septum fue identificado mediante la imagen panorámica preoperatoria y de forma clínica intraoperatoria, mientras que cualquier complicación fue estudiada y relacionada con la presencia de septum; el estudio estadístico se realizó a través de la prueba test de Fisher siendo reconocido el valor de p Abstract in english Sinus lift has been widely studied and is highly successful. The aim of this research was to establish the prevalence of intrasinusal septum in consecutive surgeries for maxillary sinus floor elevation and identify the relation with sinus membrane rupture. Ninety one surgeries were realized in patients with an indication for dental implant installation in the posterior maxilla; the patient with complete clinical and medical record (card, radiography, etc.) and without con (more) traindications for the procedure was included in the study; the surgery was realized with local or general anesthesia and the material used for inlay graft was autogenous bone or biometarials. The septum was identified by panoramic image in the preoperatory and clinically at the time of surgery; any complication was studied and related to intrasinusal septum; the statistical study was carried out with Fisher test with p value

Olate, Sergio; Pozzer, Leandro; Luna, Aníbal Henrique Barbosa; Moraes, Marcio de; Mazzonetto, Renato; Moreira, Roger W. Fernandes; Albergaria-Barbosa, Jose Ricardo de

2011-12-01

284

The association between paranasal computerized tomography scans and symptoms and signs in a general practice population with acute maxillary sinusitis  

DEFF Research Database (Denmark)

The objective of this study was to evaluate the association between changes revealed by computerized tomography scan (CT) and symptoms, signs, and bacteriological diagnoses in a general practice population who had been diagnosed with acute maxillary sinusitis (AMS). This study was designed as a prospective cohort study in Danish general practice in cooperation with the otorhinolaryngology and neuroradiology departments at Aalborg County Hospital. One hundred and seventy-four patients, aged 18-65 years, suspected of having AMS were included. The strongest associations were with purulent nasal discharge, preceding upper respiratory tract infection, maxillary toothache and oedema over the maxillary sinuses. Self-reported previous sinusitis was negatively associated with sinus infection. There was a strong association between increasing values of C-reactive protein (CRP) and erythrocyte sedimentation rate and changes on the CT scan. CT scans contributed only little to the final diagnosis, whereas increased CRP values and elevated erythrocyte sedimentation rates were more reliable indicators of inflammation in the sinuses.

Hansen, Jens Georg; Lund, Elisabeth

2011-01-01

285

Anatomical aspects of sinus floor elevations.  

Science.gov (United States)

Inadequate bone height in the lateral part of the maxilla forms a contra-indication for implant surgery. This condition can be treated with an internal augmentation of the maxillary sinus floor. This sinus floor elevation, formerly called sinus lifting, consists of a surgical procedure in which a top hinge door in the lateral maxillary sinus wall is prepared and internally rotated to a horizontal position. The new elevated sinus floor, together with the inner maxillary mucosa, will create a space that can be filled with graft material. Sinus lift procedures depend greatly on fragile structures and anatomical variations. The variety of anatomical modalities in shape of the inner aspect of the maxillary sinus defines the surgical approach. Conditions such as sinus floor convolutions, sinus septum, transient mucosa swelling and narrow sinus may form a (usually relative) contra-indication for sinus floor elevation. Absolute contra-indications are maxillary sinus diseases (tumors) and destructive former sinus surgery (like the Caldwell-Luc operation). The lateral sinus wall is usually a thin bone plate, which is easily penetrated with rotating or sharp instruments. The fragile Schneiderian membrane plays an important role for the containment of the bonegraft. The surgical procedure of preparing the trap door and luxating it, together with the preparation of the sinus mucosa, may cause a mucosa tear. Usually, when these perforations are not too large, they will fold together when turning the trap door inward and upward, or they can be glued with a fibrin sealant, or they can be covered with a resorbable membrane. If the perforation is too large, a cortico-spongious block graft can be considered. However, in most cases the sinus floor elevation will be deleted. Perforations may also occur due to irregularities in the sinus floor or even due to immediate contact of sinus mucosa with oral mucosa. Obstruction of the antro-nasal foramen is, due to its high location, not a likely complication, nor is the occurrence of severe haemorrhages since the trap door is in the periphery of the supplying vessels. Apart from these two aspects, a number of anatomical considerations are described in connection with sinus floor elevation. PMID:11168217

van den Bergh, J P; ten Bruggenkate, C M; Disch, F J; Tuinzing, D B

2000-06-01

286

[Maxillary ameloblastoma extending into the sinonasal tract].  

UK PubMed Central (United Kingdom)

Maxillary ameloblastomas can extensively expand into the paranasal sinuses or even the nasal cavity due to a slow growth pattern. Sinusitis is rarely the first tumor-related complaint. Due to the various growth forms of ameloblastomas the challenging histological differential diagnosis includes several other odontogenic as well as benign and malignant non-odontogenic tumors, e.g. tumors from the mucosa of the paranasal sinuses, salivary glands and Rathke's pouch. Despite the radical surgical approach a complete resection with wide margins cannot always be achieved. Maxillary ameloblastomas show the highest recurrence rates.

Geddert H; Runge S; Werner U; Walendzik H; Dimmler A

2013-07-01

287

[Maxillary ameloblastoma extending into the sinonasal tract].  

Science.gov (United States)

Maxillary ameloblastomas can extensively expand into the paranasal sinuses or even the nasal cavity due to a slow growth pattern. Sinusitis is rarely the first tumor-related complaint. Due to the various growth forms of ameloblastomas the challenging histological differential diagnosis includes several other odontogenic as well as benign and malignant non-odontogenic tumors, e.g. tumors from the mucosa of the paranasal sinuses, salivary glands and Rathke's pouch. Despite the radical surgical approach a complete resection with wide margins cannot always be achieved. Maxillary ameloblastomas show the highest recurrence rates. PMID:23436120

Geddert, H; Runge, S; Werner, U; Walendzik, H; Dimmler, A

2013-07-01

288

Combined chemoradiation for head and neck region myxofibrosarcoma of the maxillary sinus.  

UK PubMed Central (United Kingdom)

AIMS AND BACKGROUND: Adult sarcomas of the head and neck region (HNSs) are considered a rare clinicopathological entity. They account for only 2-15% of all adult sarcomas and for less than 1% of all head and neck malignancies. The preferred initial treatment option is wide surgical excision. Whenever surgery is considered infeasible, a frontline combined-modality approach including radiotherapy and chemotherapy might be proposed. We here report on a case of localized sarcoma of the maxillary sinus treated with induction chemotherapy and subsequent intensity-modulated radiation therapy (IMRT), achieving a persistent complete remission status. METHODS: A 66-year-old man was referred to our institution hospital for left-sided facial pain with swollen left cheek and ipsilateral facial palsy. Magnetic resonance imaging showed a mass within the left maxillary sinus extending to the orbital floor and adjacent alveolar bones. Histological examination of the biopsy specimen demonstrated a myxofibrosarcoma. The patient underwent induction chemotherapy with gemcitabine 900 mg/m2 (days 1-8) and taxotere 80 mg/m2 every 3 weeks for 3 cycles and sequential simultaneous integrated boost (SIB) IMRT up to a total dose of 70 Gy/35 fractions to the macroscopic disease with 59.5 Gy/35 fractions to the level IB-II lymph nodes in the left neck. RESULTS: Treatment was well tolerated with mild acute toxicity. Complete remission was achieved at restaging MRI 6 months after the end of the combined modality approach. The patient remains in complete, unmaintained clinical and instrumental complete remission 18 months after treatment, with no late side effects. CONCLUSION: Combination therapy with induction chemotherapy and sequential SIB-IMRT could therefore be a promising modality for head and neck sarcomas, allowing for simultaneous tumor control and normal tissue sparing.

Cante D; Franco P; Sciacero P; Girelli GF; Casanova Borca V; Pasquino M; Tofani S; Bombaci S; Migliaccio F; Marra A; Numico G; La Porta MR; Ricardi U

2013-03-01

289

Bacteriological efficacy of 5-day therapy with telithromycin in acute maxillary sinusitis.  

Science.gov (United States)

Increasing resistance among the key pathogens responsible for community-acquired respiratory tract infections, namely Streptococcus pneumoniae, Haemophilus influenzae and Moraxella catarrhalis, has the potential to limit the effectiveness of the antibacterial agents available to treat these infections. Moreover, there are regional differences in the susceptibility patterns observed and, as treatment is usually empirical, choosing an effective treatment can be challenging. Telithromycin, the first ketolide to be approved for clinical use, offers an activity profile that covers the key respiratory pathogens including penicillin- and macrolide-resistant S. pneumoniae as well as beta-lactamase-producing H. influenzae and M. catarrhalis. In a pooled analysis of three large controlled clinical trials involving patients with acute maxillary sinusitis, the bacteriological efficacy of 5- or 10-day treatment with telithromycin and 10-day treatment with comparators was evaluated. Telithromycin administered as a once-daily 800 mg dose for 5 days achieved eradication rates of 91.8, 87.5 and 92.9% for S. pneumoniae, H. influenzae and M. catarrhalis, respectively. Bacteriological eradication of 8/10 and 12/14 isolates of S. pneumoniae resistant to penicillin and erythromycin, respectively, was also reported following 5-day treatment with telithromycin. The clinical efficacy of this regimen was equivalent to that of a 10-day regimen of telithromycin or standard 10-day courses of amoxicillin-clavulanic acid or cefuroxime axetil. Telithromycin 800mg given for 5 days was well tolerated, with the majority of adverse events being of mild or moderate intensity. These data suggest that telithromycin provides effective first-line therapy for use in patients with acute maxillary sinusitis in a short and convenient once-daily dosage regimen. PMID:15737519

Buchanan, P; Roos, K; Tellier, G; Rangaraju, M; Leroy, B

2005-03-01

290

Anaplastic lymphoma kinase expression and prognosis in inflammatory myofibroblastic tumours of the maxillary sinus.  

UK PubMed Central (United Kingdom)

Inflammatory myofibroblastic tumours (IMT) of the nasal cavity and nasal sinus are rare and, although over 50 cases have been reported in the English-language literature, their precise aetiology and biological behaviour have not been elucidated. Recent studies suggest that anaplastic lymphoma kinase (ALK)-positive tumours have a very low risk of metastasis, but ALK reactivity does not appear to correlate with recurrence. Between March 2002 and December 2008, we encountered three cases of maxillary sinus IMT and investigated them to determine the clinicopathological course, prognosis and immunohistochemical expression of ALK. Two of the patients died < 13 months after the initial diagnosis and the third had multiple recurrences. All three cases were immunohisto chemically negative for ALK expression. IMT of the sino-nasal tract is rare and may undergo malignant transformation in a minority of cases. The three cases manifested progressive extension with bone destruction and multiple recurrences, and two cases had a fatal outcome and one case had high recurrence.

Lu ZJ; Zhou SH; Yan SX; Yao HT

2009-11-01

291

A retrospective study of complications associated with 100 consecutive maxillary sinus augmentations via the lateral window approach.  

UK PubMed Central (United Kingdom)

PURPOSE: To report the complications encountered during 100 consecutive maxillary sinus augmentations via the lateral window approach and to propose solutions to manage these complications. MATERIALS AND METHODS: Pretreatment residual bone heights and the presence of septa were recorded. The incidences of any intraoperative or postoperative sinus complications such as excessive bleeding, membrane perforation, infection, wound dehiscence, sinusitis, loss of bone graft, and implant success were reported. results: This study evaluated 42 men and 44 women requiring 100 consecutive sinus elevation procedures between March 2008 and February 2011. Five intraoperative membrane perforations were noted, and one subsequently developed an active infection (2 weeks after surgery). Eight instances of suppuration were noted, while 10 sites presented with wound dehiscence 1 to 2 weeks after surgery. One example of partial loss of the bone graft 6 months after surgery was identified. Of a total of 151 implants placed in 97 sinuses (one patient with bilateral sinuses and one with unilateral sinus did not complete implant placement), 2 implants presented excessive bone loss prior to uncovering. One implant was removed and one was left submerged. conclusions: Sinus floor elevation utilizing the lateral window approach is a predictable approach to manage bone volume deficiency in the posterior maxilla for patients seeking dental implant-based treatment. However, complications may include membrane tear, infection, wound dehiscence, loss of graft, and implant failure. It is vital for the clinician to understand how to recognize and solve these complications.

Lee HW; Lin WS; Morton D

2013-05-01

292

Definitive radiotherapy with or without chemotherapy for T3-4N0 squamous cell carcinoma of the maxillary sinus and nasal cavity  

International Nuclear Information System (INIS)

The objective of this study is to evaluate the efficacy and toxicity of definitive radiotherapy with or without chemotherapy for T3-4 squamous cell carcinoma of maxillary sinus and nasal cavity. Forty-two patients with T3-4N0 squamous cell carcinoma of maxillary sinus (n=30) and nasal cavity (n=12) received definitive radiotherapy. Chemotherapy was used in 34 patients and elective neck irradiation was not used. The 5-year overall survival/local control rates were 34%/29% for maxillary sinus cancer and 50%/52% for nasal cavity cancer. For maxillary sinus cancers, a performance status of Eastern Cooperative Oncology Group ?2 (P=0.012), biologically equivalent dose

2010-01-01

293

A Rare Case of Fungal Maxillary Sinusitis due to Paecilomyces lilacinus in an Immunocompetent Host, Presenting as a Subcutaneous Swelling.  

Science.gov (United States)

Paecilomyces is a colonizing fungal species which usually causes keratitis, endocarditis, sinusitis, nephritis, fungemia, cutaneous, and subcutaneous infections in immunocompromised host. Very rarely, it causes similar infection in immunocompetent host without any risk factors. We report a case of maxillary sinusitis due to Paecilomyces lilacinus in a 65-year-old immunocompetent male, who presented with a subcutaneous swelling below the left eye. The lesion was excised by surgery and treated with itraconazole for 6 months based on culture and sensitivity. After 1 year of follow up, he is free of symptoms with no evidence of recurrence. PMID:21701664

Permi, Harish S; Sunil, Kumar Y; Karnaker, Vimal K; Kishan, Prasad H L; Teerthanath, S; Bhandary, Satheesh Kumar

2011-01-01

294

Radiodense concrements in sinus maxillaris-CT diagnosis of sinus aspergillosis. Metalldichte Strukturen im Lumen der Nasennebenhoehlen - Wertigkeit der Computertomographie in der Diagnose der Kieferhoehlenaspergillose  

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11 patients with radiodense concrements in the sinus maxillaris underwent a preoperative computertomographic examination of the sinus maxillaris and the sinus concrements. 8 patients (72.7%) with the occurrence of radiodense concrements presented postoperative a histological and microbiological infection with aspergillus fumigatus. The CT-numbers of radiodense concrements in patients with aspergillus were 2802[+-]302.4 HU (Hounsfield Unit). Concrements of patients without aspergillus infection (n=3) had lower density (368.6[+-]149.1 HU; p<0.001). The root filling materials showed narly the same CT-numbers in patients with aspergillus infection (2537[+-]398.5 HU) and in patients without aspergillus infections (2544.3[+-]460.6 HU). Density of root filling material was at the same level as density of radiopaque concrements in patients with aspergillus infections. According to CT-examinations a direct connection between root filling materials and aspergillus infection was noted. Therefore in patients with radiodense concrements computertomographic examination helps to determine the kind of sinus infection. (orig.)

Krennmair, G. (Abteilung fuer Mund-, Kiefer- und Gesichtschirurgie, Allgemeines Krankenhaus der Barmherzigen Schwestern vom Hl. Kreuz, Wels (Austria)); Lugmayr, H. (Institut Radiologie 1, Allgemeines Krankenhaus der Barmherzigen Schwestern vom Hl. Kreuz, Wels (Austria)); Lenglinger, F. (Institut Radiologie 2 (Digitale Schnittbildtechnik-US-CT-MRI), Allgemeines Krankenhaus der Barmherzigen Schwestern vom Hl. Kreuz, Wels (Austria))

1993-03-01

295

Marker-free registration for the accurate integration of CT images and the subject's anatomy during navigation surgery of the maxillary sinus.  

UK PubMed Central (United Kingdom)

OBJECTIVE: This study compared three marker-free registration methods that are applicable to a navigation system that can be used for maxillary sinus surgery, and evaluated the associated errors, with the aim of determining which registration method is the most applicable for operations that require accurate navigation. METHODS: The CT digital imaging and communications in medicine (DICOM) data of ten maxillary models in DICOM files were converted into stereolithography file format. All of the ten maxillofacial models were scanned three dimensionally using a light-based three-dimensional scanner. The methods applied for registration of the maxillofacial models utilized the tooth cusp, bony landmarks and maxillary sinus anterior wall area. The errors during registration were compared between the groups. RESULTS: There were differences between the three registration methods in the zygoma, sinus posterior wall, molar alveolar, premolar alveolar, lateral nasal aperture and the infraorbital areas. The error was smallest using the overlay method for the anterior wall of the maxillary sinus, and the difference was statistically significant. CONCLUSION: The navigation error can be minimized by conducting registration using the anterior wall of the maxillary sinus during image-guided surgery of the maxillary sinus.

Kang SH; Kim MK; Kim JH; Park HK; Park W

2012-12-01

296

The Role of EGFR and HER2- Activating Mutations in Maxillary Sinus Cancer  

Science.gov (United States)

ABSTRACT Head and neck cancers account for less than 5% of all cancers worldwide and for less than 1% of all cancer deaths in Romania. Sinonasal squamous cell carcinomas are malignant tumors with origin in the respiratory mucosa of the paranasal sinuses and the nasal cavity. Because of the proximity to different important structures such as the brain, the eye the relevance of a multimodal therapy is well known. We take into discussion not only the most recent data from novel agents targeting EGF receptor (EGFR), VEGF and p53 pathways for the management of sinonasal cancer, but also further development of multimodal approach, and the use of biomarkers to appreciate the progression of the disease and the prognostic and overall survival rate in clinical practice. EGFR alterations have been implicated in the pathogenesis and progression of many malignancies. EGFR overexpression has been studied extensively regarding its clinical use but the results are yet to be analyzed.

ENE, Patricia; POPESCU, Radu Cristian; VOICULESCU, Stefan; SCAUNASU, Razvan; POPESCU, Bogdan; GRIGORE, Raluca; ENE, Razvan; CIRSTOIU, Catalin

2012-01-01

297

Effect of anorganic bovine bone to autogenous cortical bone ratio upon bone remodeling patterns following maxillary sinus augmentation.  

UK PubMed Central (United Kingdom)

INTRODUCTION: Maxillary sinus augmentation is a predictable implant site development technique, although several local and systemic factors may influence outcomes. The aim of this study was to evaluate healing patterns and bone remodeling activity following the use of two different graft mixtures for maxillary sinus augmentation. MATERIALS AND METHODS: Patients in need of maxillary sinus augmentation were randomly assigned to two different groups. A graft mixture using a 50% autologous bone (AB) to 50% anorganic bovine bone (ABB) ratio was used in group 1, while a 20% AB to 80% ABB ratio was utilized for group 2. After a 6-month healing period, bone core biopsies were harvested for histological, histomorphometrical, and immunohistochemical analyses. RESULTS: Twenty-eight subjects participated in this study. No statistically significant differences were found between groups in regards to vital bone and non-mineralized tissue proportions. Higher number of osteoid lines (18.05 ± 10.06 in group 1 vs. 9.01 ± 7.53 in group 2; P = 0.023) and higher cellularity, particularly regarding the number of osteocytes (631.85 ± 607.98 in group 1 vs. 219.08 ± 103.26 in group 2; P = 0.002), were observed in specimens from group 1. Differences in expression patterns of osteopontin and tartrate-resistant acid phosphatase were also detected between groups. CONCLUSION: AB to ABB ratio appears to influence bone remodeling patterns and cell content following maxillary sinus augmentation procedures. Similar proportion of vital bone was found in specimens obtained from both groups. More cellular presence was observed in samples containing higher proportions of AB.

Galindo-Moreno P; Moreno-Riestra I; Avila G; Padial-Molina M; Paya JA; Wang HL; O'Valle F

2011-08-01

298

First report of elective selective neck dissection in the management of squamous cell carcinoma of the maxillary sinus.  

UK PubMed Central (United Kingdom)

Controversy remains about management of the neck in squamous cell carcinoma (SCC) of the maxillary sinus and we know of no reports of the use of elective selective neck dissection for management in this site. We retrospectively reviewed 18 consecutive patients with SCC of the maxillary sinus who were managed by primary operation with curative intent. A total of 13 patients had an elective selective neck dissection, which was invaded in one case 8%. Four patients had regional metastases, two with positive nodal disease confirmed after elective selective neck dissection, and two who developed regional recurrence (both after elective selective neck dissections which were negative (pN0)). A review of other published articles in the English language showed no cases of elective selective neck dissections reported. The mean regional recurrence rate was 12% (range 0-26%) and total mean regional metastases rate 21% (range 5-36%). Elective selective neck dissection did not contribute to an improved rate of neck control with regional recurrence of 11% (2/18) compared with 12% in the review. There is no evidence in this report to indicate that elective selective neck dissections for maxillary sinus SCC will result in better disease control. Future research may indicate fewer radiotherapy fields for necks with pathologically clear nodes after elective selective neck dissection.

Brown JS; Bekiroglu F; Shaw RJ; Woolgar JA; Triantafyllou A; Rogers SN

2013-03-01

299

Structural features of facial skull and maxillary sinuses as predictors of complications in endodontic treatment of teeth of upper jaw  

Directory of Open Access Journals (Sweden)

Full Text Available Endodontic treatment is considered to be one of the most common procedures in modern dentistry, which also leads to increase of the complications. Objective: to establish the anthropometric characteristics of the structure of the facial skull and maxillary sinus, determining the development of complications of the endodontic treatment of upper jaw. Materials and methods. Measurements have been performed on 105 three-dimensional CT scan of the head, 75 have been in the control group, 30 cases have got foreign bodies of the maxillary sinuses on the CT. Results. We have established the correlation between obtained anthropometrical parameters such as height and width of the face with the type of maxillary sinus pneumatization, also we have studied the critical thickness of the bone plate over the tooth root, which is the main predisposing factor in the development of complications. Conclusion. It is possible to form risk groups according to the type of the structure of the front-skeleton, for additional studies of further endodontic interventions that may reduce their frequency.

Lepilin A.M.; Mareev O.V.; Kovalenko I.P.; Mareev G.O.

2012-01-01

300

Reconstruction of defects of maxillary sinus wall after removal of a huge odontogenic lesion using prebended 3D titanium-mesh and CAD/CAM technique  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Abstract A 63 year-old male with a huge odontogenic lesion of sinus maxillaris was treated with computer-assisted surgery. After resection of the odontogenic lesion, the sinus wall was reconstructed with a prebended 3D titanium-mesh using CAD/CAM technique. This work provides a new treatme...

Stoetzer Marcus; Rana Majeed; von See Constantin; Eckardt André M; Gellrich Nils-Claudius

 
 
 
 
301

Reconstruction of defects of maxillary sinus wall after removal of a huge odontogenic lesion using prebended 3D titanium-mesh and CAD/CAM technique  

Digital Repository Infrastructure Vision for European Research (DRIVER)

A 63 year-old male with a huge odontogenic lesion of sinus maxillaris was treated with computer-assisted surgery. After resection of the odontogenic lesion, the sinus wall was reconstructed with a prebended 3D titanium-mesh using CAD/CAM technique. This work provides a new treatment device for maxil...

Stoetzer, Marcus; Rana, Majeed; von See, Constantin; Eckardt, André M; Gellrich, Nils-Claudius

302

More actors, different play: sphenoethmoid cell intimately related to the maxillary nerve canal and cavernous sinus apex.  

UK PubMed Central (United Kingdom)

The sphenoid sinus is one of the most morphologically variable and surgically important structures of the skull base. Located below the sella turcica, neighbored by parasellar regions, such as the orbital apex, pterygopalatine fossa and lateral sellar region (cavernous sinus), it is clinically related to these and surgically relevant as corridor for various approaches. Moreover, at the sphenoethmoidal junction, important variations occur, most of these related to the presence of the Onodi cells and the intrasinusal protrusions of the optic nerve. That is why any identified and previously undescribed morphological variation at that level must be added to the well-established protocols, clinical and surgical. During a retrospective CT study of the sphenoid sinus anatomical features a previously unreported morphology was encountered and is reported here. It refers to a unilateral sphenoethmoid cell (SEC), Onodi-positive, not only overriding the superior aspect of the sphenoid but also its lateral side to get intimately related to the maxillary nerve. As that SEC expanded medially to the cavernous sinus apex, it altered the usual endosinusal morphological correlations and also added itself within the limits of the Mullan's triangle. It appears so that such postero-infero-lateral extended pneumatization of an Onodi cell alters the surgical landmarks and also can blur clinical pictures, by adding maxillary and pterygopalatine signs and symptoms.

S?ndulescu M; Rusu MC; Ciobanu IC; Ilie A; Jianu AM

2011-01-01

303

Comparison of two different absorbable membranes for the coverage of lateral osteotomy sites in maxillary sinus augmentation: a preliminary study.  

UK PubMed Central (United Kingdom)

INTRODUCTION: Barrier membranes, both absorbable and non-absorbable, have been used in sinus augmentation for many years. Some years ago, a new autologous blood substrate called Platelet-Rich-Fibrin (PRF) was introduced, and to date, the supporting effect on bone regeneration has been controversial. This study aimed to evaluate the effect of PRF on bone regeneration when used as a barrier membrane at the lateral osteotomy site in sinus augmentation. MATERIAL AND METHODS: Twelve sinuses from six patients requiring bilateral sinus floor augmentation were treated with a two-stage surgical technique using sinus augmentation and implant placement after 5 months. The sinuses were grafted with autologous bone and bone-substitute material (Bio-Oss(®)) mixed in a 1:1 ratio and were covered in a randomized split-mouth design with a PRF or a conventional collagen membrane (Bio-Gide(®)), respectively. Five months later threaded titanium dental implants were inserted and bone specimens harvested with a trephine burr were evaluated histomorphometrically. RESULTS: Bone quality seemed to be equal at both sites of the grafted sinuses. Mean vital bone formation after 5 months was 17.0% and 17.2%, for the PRF and collagen sites, respectively. The mean of residual bone-substitute was 15.9% and 17.3% for PRF and collagen, respectively. No local complications, such as dehiscences or membrane exposures, were detected at either site in any of the treated patients. After 12 months all implants reached primary stability in the augmented maxillary sinus floor without any peri-implant tissue inflammation. CONCLUSIONS: Within the limits of the study the coverage of the lateral sinus window with two different absorbable membranes has been shown to result in a similar amount of vital bone formation and residual bone-substitute.

Gassling V; Purcz N; Braesen JH; Will M; Gierloff M; Behrens E; Açil Y; Wiltfang J

2013-01-01

304

Synthetic Bone Substitute Engineered with Amniotic Epithelial Cells Enhances Bone Regeneration after Maxillary Sinus Augmentation  

Science.gov (United States)

Background Evidence has been provided that a cell-based therapy combined with the use of bioactive materials may significantly improve bone regeneration prior to dental implant, although the identification of an ideal source of progenitor/stem cells remains to be determined. Aim In the present research, the bone regenerative property of an emerging source of progenitor cells, the amniotic epithelial cells (AEC), loaded on a calcium-phosphate synthetic bone substitute, made by direct rapid prototyping (rPT) technique, was evaluated in an animal study. Material And Methods Two blocks of synthetic bone substitute (?0.14 cm3), alone or engineered with 1×106 ovine AEC (oAEC), were grafted bilaterally into maxillary sinuses of six adult sheep, an animal model chosen for its high translational value in dentistry. The sheep were then randomly divided into two groups and sacrificed at 45 and 90 days post implantation (p.i.). Tissue regeneration was evaluated in the sinus explants by micro-computer tomography (micro-CT), morphological, morphometric and biochemical analyses. Results And Conclusions The obtained data suggest that scaffold integration and bone deposition are positively influenced by allotransplantated oAEC. Sinus explants derived from sheep grafted with oAEC engineered scaffolds displayed a reduced fibrotic reaction, a limited inflammatory response and an accelerated process of angiogenesis. In addition, the presence of oAEC significantly stimulated osteogenesis either by enhancing bone deposition or making more extent the foci of bone nucleation. Besides the modulatory role played by oAEC in the crucial events successfully guiding tissue regeneration (angiogenesis, vascular endothelial growth factor expression and inflammation), data provided herein show that oAEC were also able to directly participate in the process of bone deposition, as suggested by the presence of oAEC entrapped within the newly deposited osteoid matrix and by their ability to switch-on the expression of a specific bone-related protein (osteocalcin, OCN) when transplanted into host tissues.

Barboni, Barbara; Mangano, Carlo; Valbonetti, Luca; Marruchella, Giuseppe; Berardinelli, Paolo; Martelli, Alessandra; Muttini, Aurelio; Mauro, Annunziata; Bedini, Rossella; Turriani, Maura; Pecci, Raffaella; Nardinocchi, Delia; Zizzari, Vincenzo Luca; Tete, Stefano; Piattelli, Adriano; Mattioli, Mauro

2013-01-01

305

Synthetic bone substitute engineered with amniotic epithelial cells enhances bone regeneration after maxillary sinus augmentation.  

UK PubMed Central (United Kingdom)

BACKGROUND: Evidence has been provided that a cell-based therapy combined with the use of bioactive materials may significantly improve bone regeneration prior to dental implant, although the identification of an ideal source of progenitor/stem cells remains to be determined. AIM: In the present research, the bone regenerative property of an emerging source of progenitor cells, the amniotic epithelial cells (AEC), loaded on a calcium-phosphate synthetic bone substitute, made by direct rapid prototyping (rPT) technique, was evaluated in an animal study. MATERIAL AND METHODS: Two blocks of synthetic bone substitute (?0.14 cm(3)), alone or engineered with 1×10(6) ovine AEC (oAEC), were grafted bilaterally into maxillary sinuses of six adult sheep, an animal model chosen for its high translational value in dentistry. The sheep were then randomly divided into two groups and sacrificed at 45 and 90 days post implantation (p.i.). Tissue regeneration was evaluated in the sinus explants by micro-computer tomography (micro-CT), morphological, morphometric and biochemical analyses. RESULTS AND CONCLUSIONS: The obtained data suggest that scaffold integration and bone deposition are positively influenced by allotransplantated oAEC. Sinus explants derived from sheep grafted with oAEC engineered scaffolds displayed a reduced fibrotic reaction, a limited inflammatory response and an accelerated process of angiogenesis. In addition, the presence of oAEC significantly stimulated osteogenesis either by enhancing bone deposition or making more extent the foci of bone nucleation. Besides the modulatory role played by oAEC in the crucial events successfully guiding tissue regeneration (angiogenesis, vascular endothelial growth factor expression and inflammation), data provided herein show that oAEC were also able to directly participate in the process of bone deposition, as suggested by the presence of oAEC entrapped within the newly deposited osteoid matrix and by their ability to switch-on the expression of a specific bone-related protein (osteocalcin, OCN) when transplanted into host tissues.

Barboni B; Mangano C; Valbonetti L; Marruchella G; Berardinelli P; Martelli A; Muttini A; Mauro A; Bedini R; Turriani M; Pecci R; Nardinocchi D; Zizzari VL; Tetè S; Piattelli A; Mattioli M

2013-01-01

306

Pure sarcomatoid carcinoma of maxillary sinus and nasal cavity simulating malignant fibrous histiocytoma.  

UK PubMed Central (United Kingdom)

Although a few cases of sinonasal carcinoma with focal sarcomatous differentiation have been reported, pure sarcomatoid carcinoma has not been reported in the English literature. Imaging studies and gross inspection in a 60-year-old man with left-sided face pain revealed a mass in the left maxillary sinus and nasal cavity. A large incisional biopsy specimen from the nasal cavity revealed proliferation of malignant spindle and round cells with a malignant fibrous histiocytoma (MFH) pattern. Tumor giant cells were scattered, and there were areas of a vague storiform pattern. Mitotic figures were numerous. Carcinomatous component was not recognized. The histologic diagnosis was storiform-pleomorphic MFH. Tumor cells were positive for pancytokeratins AE1/3, KL-1, and CAM5.2 and cytokeratin (CK) 18, vimentin, CD68, p53, Ki-67 (labeling, 90%), ??-antitrypsin, and ??-antichymotrypsin and negative for pancytokeratin WSS, CK 34?E14, CK7, CK8, CK14, CK19, CK20, epithelial membrane antigen, S-100 protein, desmin, ?-smooth muscle actin, CD34, HMB45, chromogranin, synaptophysin, myoglobin, CD45, CD30, and CD15. Because keratins were positive in tumor cells, a diagnosis of sarcomatoid carcinoma simulating MFH was made. The patient was treated with chemoradiation without significant effect and died 9 months after initial examination.

Terada T

2011-01-01

307

Assessment of chemo-radiotherapy for carcinoma of the maxillary sinus  

International Nuclear Information System (INIS)

The local control rates in 112 patients with squamous cell carcinoma of the maxillary sinus, initially treated at Kyushu University from 1976 to 1991 using radiotherapy alone, FAR-therapy (radiation with 5FU and Vitamin-A) or BUdR-FAR-therapy (BUdR followed by FAR-therapy), were retrospectly analyzed from pathological and clinical standpoints, to ascertain their respective effectiveness. The local control rates of T2 patients treated using radiotherapy alone, FAR-therapy and BUdR-FAR-therapy were 5%, 3% and 20% at Time-Dose-Factor(TDF) 30, 30%, 65% and 74% at TDF 50, and 80%, 99% and 97% at TDF 80, respectively. The local control rates of T3 patients were 1%, 1% and 0% at TDF 30, 18%, 46% and 22% at TDF 50, and 62%, 98% and 90% at TDF 80, respectively. Those of T4 patients were 0%, 0% and 0% at TDF 30, 7%, 13% and 9% at TDF 50, and 36%, 72% and 60% at TDF 80, respectively. The local control rates achieved by chemo-radiotherapy (FAR-therapy and BUdR-FAR-therapy) were higher than those achieved using radiotherapy alone, although the difference was small. (author).

1995-01-01

308

Intravitreal bevacizumab for delayed radiation maculopathy and papillopathy after irradiation for maxillary sinus cancer  

Directory of Open Access Journals (Sweden)

Full Text Available Miki Gondo1, Tsutomu Sakai1, Hiroshi Tsuneoka1, Chihiro Kanehira21Department of Ophthalmology, Jikei University School of Medicine, 2Division of Radiology, Jikei University School of Medicine, Tokyo, JapanBackground: The evaluation of intravitreal bevacizumab treatment for delayed radiation maculopathy and papillopathy after irradiation for maxillary sinus cancer.Case report: A patient with radiation maculopathy and papillopathy was treated with intravitreal bevacizumab (1.25 mg). Main outcome measures included fundus photography, angiography, and optical coherence tomography (OCT). Two weeks after intravitreal bevacizumab, visual acuity improved from 0.4 to 1.2. Fundus examination revealed decreased disc swelling, peripapillary hemorrhage, and macular edema. OCT demonstrated complete resolution of serous retinal detachment. At the 12-month follow-up, there was no exudation recurrence. No ocular or systemic side effects were observed.Conclusion: Intravitreal bevacizumab can be used to treat radiation maculopathy and papillopathy. Antivascular endothelial growth factor therapy may decrease tissue injury associated with radiation vasculopathy.Keywords: bevacizumab, radiation, maculopathy, papillopathy

Gondo M; Sakai T; Tsuneoka H; Kanehira C

2011-01-01

309

Carcinoma of Maxillary Sinus. A case Presentation. Carcinoma de seno maxilar. Presentación de caso.  

Directory of Open Access Journals (Sweden)

Full Text Available Tumors of the nasosinuous tract developed in the air cavities usually present a considerable growing before the patient feel any symptom or sign. Great part of the symptomatology is given due to the invasion of the tumor to neighbour structures such as oral and nasal cavities and orbits. A case of a 62 year-old male patient is presented after being under a dental extraction. A bucco-sinuous communication was diagnosed. It did not respond to different treatments and after some moths an epidermoid carcinoma of the right maxillary sinus appeared. It is of great interest to let this case been known in order to outstand the importance of an early diagnosis to get a better vital prognosis in this kinds of lesions. Los tumores del tracto nasosinusal al desarrollarse en cavidades aéreas, suelen presentar un considerable crecimiento antes de dar lugar a signos y síntomas. Gran parte de la sintomatología se debe a la invasión del tumor a estructuras vecinas, como son la órbita y la cavidad nasal y oral. Se presenta el caso de un paciente masculino, de 62 años de edad, al cual, tras haber sido sometido a una extracción dentaria, se le diagnosticó una comunicación bucosinusal, que no cedió a varias formas de tratamiento, lo que resultó varios meses después en un carcinoma epidermoide del seno maxilar derecho. El interés de dar a conocer este caso, radica en destacar la importancia de un diagnóstico precoz para conseguir mejorar el pronóstico vital en este tipo de afecciones.

Blas Jorge González Manso; Orlando Jesús Sotolongo Terry; Ángel Luis Cruz Leiva

2007-01-01

310

Carcinoma of Maxillary Sinus. A case Presentation. Carcinoma de seno maxilar. Presentación de caso.  

Directory of Open Access Journals (Sweden)

Full Text Available Tumors of the nasosinuous tract developed in the air cavities usually present a considerable growing before the patient feel any symptom or sign. Great part of the symptomatology is given due to the invasion of the tumor to neighbour structures such as oral and nasal cavities and orbits. A case of a 62 year-old male patient is presented after being under a dental extraction. A bucco-sinuous communication was diagnosed. It did not respond to different treatments and after some moths an epidermoid carcinoma of the right maxillary sinus appeared. It is of great interest to let this case been known in order to outstand the importance of an early diagnosis to get a better vital prognosis in this kinds of lesions.Los tumores del tracto nasosinusal al desarrollarse en cavidades aéreas, suelen presentar un considerable crecimiento antes de dar lugar a signos y síntomas. Gran parte de la sintomatología se debe a la invasión del tumor a estructuras vecinas, como son la órbita y la cavidad nasal y oral. Se presenta el caso de un paciente masculino, de 62 años de edad, al cual, tras haber sido sometido a una extracción dentaria, se le diagnosticó una comunicación bucosinusal, que no cedió a varias formas de tratamiento, lo que resultó varios meses después en un carcinoma epidermoide del seno maxilar derecho. El interés de dar a conocer este caso, radica en destacar la importancia de un diagnóstico precoz para conseguir mejorar el pronóstico vital en este tipo de afecciones.

Blas Jorge González Manso; Orlando Jesús Sotolongo Terry; Ángel Luis Cruz Leiva

311

Postoperative Radiotherapy for Maxillary Sinus Cancer: Long-Term Outcomes and Toxicities of Treatment  

International Nuclear Information System (INIS)

[en] Purpose: To determine the effects of three changes in radiotherapy technique on the outcomes for patients irradiated postoperatively for maxillary sinus cancer. Methods and Materials: The data of 146 patients treated between 1969 and 2002 were reviewed. The patients were separated into two groups according to the date of treatment. Group 1 included 90 patients treated before 1991 and Group 2 included 56 patients treated after 1991, when the three changes were implemented. The outcomes were compared between the two groups. Results: No differences were found in the 5-year overall survival, recurrence-free survival, local control, nodal control, or distant metastasis rates between the two groups (51% vs. 62%, 51% vs. 57%, 76% vs. 70%, 82% vs. 83%, and 28% vs. 17% for Groups 1 and 2, respectively). The three changes were to increase the portals to cover the base of the skull in patients with perineural invasion, reducing their risk of local recurrence; the addition of elective neck irradiation in patients with squamous or undifferentiated histologic features, improving the nodal control, distant metastasis, and recurrence-free survival rates (64% vs. 93%, 20% vs. 3%, and 45% vs. 67%, respectively; p

312

Three-dimensional images contribute to the diagnosis of mucous retention cyst in maxillary sinus.  

UK PubMed Central (United Kingdom)

OBJECTIVE: To evaluate the detection of mucous retention cyst of maxillary sinus (MRCMS) using panoramic radiography and cone beam computed tomography (CBCT). STUDY DESIGN: A digital database with 6,000 panoramic radiographs was reviewed for MRCMS. Suggestive images of MRCMS were detected on 185 radiographs, and patients were located and invited to return for follow-up. Thirty patients returned, and control panoramic radiographs were obtained 6 to 46 months after the initial radiograph. When MRCMS was found on control radiographs, CBCT scans were obtained. Cysts were measured and compared on radiographs and scans. The Wilcoxon, Spearman and Kolmorogov-Smirnov tests were used for statistical analysis. The level of significance was set at 5%. RESULTS: There were statistically significant differences between the two methods (p<0.05): 23 MRCMS detected on panoramic radiographs were confirmed by CBCT, but 5 MRCMS detected on CBCT images had not been identified by panoramic radiography. Eight MRCMS detected on control radiographs were not confirmed by CBCT. MRCMS size differences from initial to control panoramic radiographs and CBCT scans were not statistically significant (p= 0.617 and p= 0.626). The correlation between time and MRCMS size differences was not significant (r = -0.16, p = 0.381). CONCLUSION: CBCT scanning detect MRCMS more accurately than panoramic radiography.

Donizeth-Rodrigues C; Fonseca-Da Silveira M; Gonçalves-De Alencar AH; Garcia-Santos-Silva MA; Francisco-De-Mendonça E; Estrela C

2013-01-01

313

Long-term implant survival in the grafted maxillary sinus: a systematic review.  

Science.gov (United States)

The predictability of maxillary sinus augmentation has been extensively reported. Procedural outcomes, most often measured as implant survival rates, have customarily used inclusion criteria that included a minimum 1-year loading time. The inclusion criteria of this review extended the minimum postloading evaluation to 3 years to determine if the previously reported short-term survival rates are maintained. An electronic search of the literature was performed and retrieved articles were screened using specific inclusion criteria, paramount of which was a minimum of 3 years of follow-up. The search revealed 18 articles for the lateral window approach (6,500 implants in 2,149 patients) and 7 for the transalveolar approach (1,257 implants in 704 patients). Overall, implant survival after a minimum of 3 years loading was 93.7% and 97.2% for the lateral window and transalveolar approaches, respectively. Of importance is the fact that 80% of failures occurred within the first year and 93.1% of the failures occurred within 3 years. The risk of implant failure after 3 years can now be directly calculated as the overall risk of failure after 3 years (6.3%) × the incidence of late failures (6.9%), thus equaling 0.43%. This review discredits the theory that studies of a lower level of evidence report inflated results when compared with prospective randomized controlled clinical trials. PMID:24116362

Del Fabbro, Massimo; Wallace, Stephen S; Testori, Tiziano

314

Extensive enlargement of the maxillary sinus in Alouatta caraya (mammalia, primates, cebidae): an allometric approach to skull pneumatization in Atelinae.  

UK PubMed Central (United Kingdom)

In contrast to the paranasal sinuses of Old World monkeys and hominoids, little information is available about the paranasal sinuses of New World monkeys. Because this information is crucial in order to draw further conclusions about the evolution and biological role of skull pneumatization, this study investigates the morphology of the paranasal sinuses in adult black-and-gold howler monkeys (Alouatta caraya). Volumes of the paranasal sinuses were calculated using computer software (SURFdriver or Allegro) from serial coronal CT scans of 20 skulls of both sexes. Skull pneumatization in A. caraya is more complex than in other higher primates. In both sexes, the maxillary sinus (MS) is the only pneumatic cavity and enlarges regularly into neighboring bones such as the frontal bone and the basisphenoid. The resulting pansinus is often partitioned by several vertical septa. As in most external cranial dimensions, mean MS volume of A. caraya (male 4.08 cm(3); female 2.00 cm(3)) shows significant sexual dimorphism. Reduced major axis regression analysis between MS volume and different cranial dimensions for A. caraya (and for available data from other platyrrhines) suggests a distinct association for this group, with Alouatta having one of the largest pneumatic cavities. The combination of this unusual expansion of the MS of Alouatta and the occurrence of distinct septa within the sinus may be a consequence of the distinct skull architecture of Alouatta.

Koppe T; Moormann T; Wallner CP; Röhrer-Ertl O

2005-02-01

315

Extensive enlargement of the maxillary sinus in Alouatta caraya (mammalia, primates, cebidae): an allometric approach to skull pneumatization in Atelinae.  

Science.gov (United States)

In contrast to the paranasal sinuses of Old World monkeys and hominoids, little information is available about the paranasal sinuses of New World monkeys. Because this information is crucial in order to draw further conclusions about the evolution and biological role of skull pneumatization, this study investigates the morphology of the paranasal sinuses in adult black-and-gold howler monkeys (Alouatta caraya). Volumes of the paranasal sinuses were calculated using computer software (SURFdriver or Allegro) from serial coronal CT scans of 20 skulls of both sexes. Skull pneumatization in A. caraya is more complex than in other higher primates. In both sexes, the maxillary sinus (MS) is the only pneumatic cavity and enlarges regularly into neighboring bones such as the frontal bone and the basisphenoid. The resulting pansinus is often partitioned by several vertical septa. As in most external cranial dimensions, mean MS volume of A. caraya (male 4.08 cm(3); female 2.00 cm(3)) shows significant sexual dimorphism. Reduced major axis regression analysis between MS volume and different cranial dimensions for A. caraya (and for available data from other platyrrhines) suggests a distinct association for this group, with Alouatta having one of the largest pneumatic cavities. The combination of this unusual expansion of the MS of Alouatta and the occurrence of distinct septa within the sinus may be a consequence of the distinct skull architecture of Alouatta. PMID:15599931

Koppe, Thomas; Moormann, Tobias; Wallner, Claus-Peter; Röhrer-Ertl, Olav

2005-02-01

316

Prevalence and location of maxillary sinus septa in the Taiwanese population and relationship to the absence of molars.  

UK PubMed Central (United Kingdom)

OBJECTIVES: Understanding the septum structure of the sinus is necessary for correct implant placement in the maxilla if sinus encroachment is required. The exact mechanism that controls septum development is unclear, although a role for the irregular pneumatization of the sinus floor following tooth loss has been suggested. The aims of this study were to examine the prevalence and location of sinus septa in the Taiwanese population and to determine whether there is a relationship between the presence of septa and the absence of molars. MATERIALS AND METHODS: Using computed tomography (CT) scans of sinuses obtained from 423 subjects (216 women and 207 men, mean age 53.65 years), septum morphology and its correlation with the presence of molars was examined. RESULTS: About 30% of subjects (124/423) had sinus septa, corresponding to 20.45% of all sinus segments detected (173/846). Fifty-nine patients had multiple septa, giving a prevalence of septa of 22.93%. Septa were located most frequently in the regions of the first and second molars. The prevalence was not related to tooth loss (edentulous, partially edentulous, or dentate maxillary segments). Logistic regression analysis showed that men were significantly more likely to have septa than were women (OR=1.67; P=0.019). CONCLUSIONS: In the 423 Taiwanese subjects tested, the prevalence of septum was 29.31% according to the subjects and 22.93% according to the sinus segments. The most frequent location of septa was in the region of the first and secondary molars. No correlation was observed between the presence of septa and the absence of molars.

Shen EC; Fu E; Chiu TJ; Chang V; Chiang CY; Tu HP

2012-06-01

317

VALIDACIÓN DE LA PANORÁMICA TOMOGRÁFICA COMO HERRAMIENTA DIAGNÓSTICA PARA PATOLOGÍA DEL SENO MAXILAR/ VALIDATION OF PANORAMIC TOMOGRAPHY AS A TOOL TO DIAGNOSE MAXILLARY SINUS PATHOLOGIES  

Scientific Electronic Library Online (English)

Full Text Available Abstract in english INTRODUCCIÓN: la imaginología es importante en la valoración diagnóstica y una herramienta útil para la selección de procedimientos en pacientes de los que se sospecha patología maxilofacial. Entre las diferentes modalidades imaginológicas maxilofaciales se encuentran la radiografía panorámica y la tomografía computarizada Cone beam, desarrollada como alternativa a la tomografía convencional, actualmente descrita como Gold standard para imaginología del área (more) oral y maxilofacial. MÉTODOS:observación por dos evaluadores previamente calibrados de 100 tomografías Cone beam y 100 panorámicas tomográficas de pacientes seleccionados aleatoriamente; aplicación de análisis univariado, medidas de tendencia central, y definición de la sensibilidad, especificidad, valor predictivo positivo y negativo en tablas específicas de 2 x 2 aplicando el estudio prueba de una prueba. RESULTADOS: los resultados obtenidos muestran que la panorámica tomográfica tipo Cone beam como prueba diagnóstica frente a la tomografía computarizada Cone beam para evaluar imágenes compatibles con patología sinusal (pólipo, quiste y engrosamiento mucoso) tiene sensibilidad y especificidad variable dependiendo del tipo de patología sinusal, con nivel de confianza del 95% y con coeficiente de kappa con valor de 1 para las tomografías axiales computarizadas y de 0,94-1,0 para la panorámica tomográfica tipo Cone beam. CONCLUSIONES: la panorámica tomográfica Cone beam es lo suficientemente sensible y específica para ser utilizada como herramienta diagnóstica en patología de seno maxilar. INTRODUCTION medical imaging is an important diagnostic resource and a useful tool for selecting the right procedure in patients with suspected maxillofacial pathology. Some of the most common maxillofacial imaging methods include panoramic radiography and cone beam computed tomography, which was developed as an alternative to conventional tomography and is currently considered the gold standard for imaging the oral and maxillofacial area. METHODS: two previously calibrated evaluators analyzed 100 cone beam tomographies and 100 panoramic tomographies from randomly selected patients; the methods also included: univariate analysis, measurement of central tendency, and definition of sensitivity, specificity, and positive / negative predictive value on 2 x 2 specific tables using a validity test. RESULTS: the results show that, as a diagnostic test, cone beam panoramic tomography, in comparison to cone beam computed tomography to evaluate images compatible with sinus pathology (polyps, cysts and mucosa thickening), offers variable sensitivity and specificity depending on the type of sinus pathology, with a confidence level of 95% and a kappa coefficient value of 1 for CAT scans and 0.94 to 1.0 for cone beam panoramic tomography. CONCLUSIONS: cone beam panoramic tomography is sensitive and specific enough to be used as a diagnostic tool in maxillary sinus pathology.

Domínguez Mejía, José S.; Aguilar Méndez, Germán; Guerra Restrepo, Lisandro; Contreras Gómez, Natalia; Aristizábal, Ana M.

2013-06-01

318

Use of pharmacodynamic end points in the evaluation of gatifloxacin for the treatment of acute maxillary sinusitis.  

Science.gov (United States)

The relationship between drug exposure and the time course of antimicrobial effect at the primary infection site for acute maxillary sinusitis has not previously been explored. This single-center, open-label study quantified the time course of sinus sterilization, described gatifloxacin exposure at the infection site, and posed the hypothesis that the use of continuous and quantitative time-related end points may allow for better characterization of drug effect with fewer patients than traditional clinical trial approaches. Of the 12 enrolled patients, 10 were clinically evaluable, from whom 7 pathogens were isolated: 4 Streptococcus pneumoniae, 2 staphylococci, and 1 Enterobacter aerogenes. The median predicted 24-h area under the curve (AUC) in sinus aspirates and plasma samples was 54.7 mg x h/L and 30.1 mg x h/L, respectively. The median 24-h AUC ratio for sinus aspirates and plasma samples was 1.51 (range, 0.88-2.23). For patients infected with pneumococci, the median time to sinus sterilization was 50 h. The use of quantitative time-related end points may be useful in evaluating the efficacy of antimicrobial agents with fewer patients. PMID:15156435

Ambrose, Paul G; Anon, Jack B; Owen, Joel S; Van Wart, Scott; McPhee, Mary Eileen; Bhavnani, Sujata M; Piedmonte, Marion; Jones, Ronald N

2004-05-12

319

Calvarial autogenous bone graft for maxillary ridge and sinus reconstruction for rehabilitation with dental implants.  

UK PubMed Central (United Kingdom)

Abstract Autogenous bone grafting is the gold-standard technique for bone augmentation procedures prior to implants placement. If the amount of available intraoral donor bone is insufficient, it is necessary to harvest bone graft from extra-oral sites, such as calvaria. Although this technique is well established, only a few case reports show the histological analysis of the grafted bone at the moment of implants placement. This present paper reports a case of a 48 year-old female patient, with a critical atrophic maxillary ridge reconstructed using autogenous calvarial bone graft prior to implants placement, with clinical and histological evaluation. Bone was collected under general anesthesia, from the parietal bone. The outer cortical originated the bone blocks, and the medullar bone layer between was collected to be used in the sinus augmentation procedure, together with five of the bone blocks triturated. Six months after bone augmentation, eight implants were placed in the grafted area, and two biopsies were retrieved (anterior and the posterior regions), allowing the visualization of the bone remodeling process in the grafted areas. The patient had a stable recovery. Our results showed that although necrotic bone could still be seen in the outer layer of the grafted area, the interface between this necrotic bone and the already remodeled bone was consistent with biocompatibility. Two-year radiographic evaluation showed success of the grafts and the implants in supporting an esthetic and functionally stable prosthesis. Summarizing, calvarial bone grafts are a viable alternative for the attainment of adequate bone volume prior to implants placement.

Bastos AS; Spin-Neto R; Conte Neto N; Gallina K; Boeck-Neto RJ; Marcantonio C; Marcantonio E; Marcantonio Júnior E

2012-04-01

320

Bone regeneration using a hollow hydroxyapatite space-maintaining device for maxillary sinus floor augmentation--a clinical pilot study.  

UK PubMed Central (United Kingdom)

BACKGROUND: The mere lifting of the maxillary sinus membrane by implants protruding into the sinus cavity allows the establishment of a void space for blood clot and new bone formation. Purpose: To evaluate bone formation by using a spherical, hollow, and perforated hydroxyapatite space-maintaining device (HSMD) in a two-stage sinus lift procedure where residual alveolar bone height was ?2 mm. MATERIAL AND METHODS: Spherical, hollow, and perforated HSMDs with a diameter of 12 mm were manufactured for this pilot study. Three patients with a residual bone height of 1-2 mm, as verified clinically and radiographically, and in need of a sinus augmentation procedure prior to implant installation were selected for the study. The HSMD and bone formation was evaluated by cone beam computerized tomography (CBCT) 6 months after augmentation procedure. Implants were installed 6 to 9 months after augmentation. The implant sites were prepared by a trephine drill to obtain a specimen of HSMD and bone for histological evaluation. After implant installation, the condition of the sinus membrane adjacent to the HSMD was evaluated endoscopically. After an additional 8 weeks, fixed partial prostheses were fabricated. RESULTS: Bone formation verified by CBCT was found around and inside the device in all three patients after 6 months. Despite the fact that residual bone before augmentation was ?2 mm, 12-mm-long implants with diameter of 4.8 mm could be inserted with preservation of an intact and healthy sinus membrane verified endoscopically. Bone formation inside HSMDs was noted histologically in two out of three HSMDs. Implants were stable and without any marginal bone loss after 1 year of prosthetic loading. CONCLUSION: A spherical, hollow, and perforated HSMD used in sinus lift procedures can produce a void space for blood clot and new bone formation and subsequent implant installation.

Johansson LÅ; Isaksson S; Adolfsson E; Lindh C; Sennerby L

2012-08-01

 
 
 
 
321

[Recurrent painful ophthalmoplegia secondary to polyostotic fibrous dysplasia of the maxillary sinuses with involvement of the superior orbital fissure].  

UK PubMed Central (United Kingdom)

INTRODUCTION: Fibrous dysplasia is a bone disease that is usually accompanied by asymptomatic lesions but which may sometimes display neurological manifestations due to the involvement of the craniofacial bones. CASE REPORT: A 25-year-old female, with a history of migraines, who visited at the age of 18 due to pain in the right retro-ocular and maxillary region, although with characteristics that were unlike those of her usual migraines, and which was associated with ipsilateral ophthalmoparesis. The condition had a self-limiting course and responded well to corticoids, although it was recurring. Examination revealed intense pain on palpation of the right-hand maxillary sinus and incomplete paralysis of the ipsilateral oculomotor nerve with palpebral ptosis. Results of complementary studies were normal, except for magnetic resonance imaging of the head and computerised axial tomography of the face, which revealed an expansive lesion with involvement of the right superior maxillary sinus and the greater wing of the sphenoid bone, with probable compromise of the superior orbital fissure, consistent with the diagnosis of fibrous dysplasia, which was confirmed by means of a pathology study. CONCLUSIONS: Fibrous dysplasia is a benign bone disorder, of unknown causation, in which normal bone tissue is replaced by amorphous conjunctive tissue. There is sometimes craniofacial involvement and a hypertrophic bone mass is formed which can fill the paranasal sinuses and the orbit, resulting in exophthalmus and visual disorders. To date the scientific literature does not include any reports of this disease manifesting as bouts of recurrent painful ophthalmoparesis which responds to corticoids, as happened in the case of our patient.

Navarro-Munoz S; Rueda-Medina I; Recio-Bermejo M; Del Saz-Saucedo P; Espejo-Martinez B; Garcia-Ruiz R; Ortega-Leon T; Turpin-Fenoll L

2011-01-01

322

Neoadjuvant intra-arterial chemotherapy combined with radiotherapy and surgery in patients with advanced maxillary sinus cancer  

Science.gov (United States)

Purpose The optimal treatment of advanced maxillary sinus cancer has been challenging for several decades. Intra-arterial chemotherapy (IAC) for head and neck cancer has been controversial. We have analyzed the long-term outcome of neoadjuvant IAC followed by radiation therapy (RT) and surgery. Materials and Methods Twenty-seven patients with advanced maxillary sinus cancer were treated between 1989 and 2002. Five-fluorouracil (5-FU, 500 mg/m2) was infused intra-arterially, and followed by RT (total 50.4 Gy/28 fractions). A planned surgery was performed 3 to 4 weeks after completion of IAC and RT. Results At a median follow-up of 77 months (range, 12 to 169 months), the 5-year rates of overall survival in all patients were 63%. The 5-year rates of overall survival of stage T3/T4 patients were 70.0% and 58.8%, respectively. Seven of fourteen patients with disease recurrence had a local recurrence alone. The 5-year actuarial local control rates in patients with stage T3/T4, and in all patients were 20.0%, 32.3%, and 27.4%, respectively. Overall response rate after the completion of IAC and RT was 70.3%. During the follow-up, seven patients (25.9%) showed mild to moderate late complications. The tumor extent (i.e., the involvement of either orbit and/or base of skull) appeared to be related with local recurrence. Conclusion Neoadjuvant IAC with 5-FU followed by RT and surgery may be effective to improve local tumor control in the patients with advanced maxillary sinus cancer. However, local failure was still the major cause of death. Further investigations are required to determine the optimal treatment schedule, radiotherapy techniques and chemotherapy regimens.

Kim, Won Taek; Ki, Yong Kan; Lee, Ju Hye; Kim, Dong Hyun; Park, Dahl; Cho, Kyu Sup; Roh, Hwan Jung; Kim, Dong Won

2013-01-01

323

Comparison between conventional and piezoelectric surgical tools for maxillary sinus floor elevation. A randomized controlled clinical trial.  

UK PubMed Central (United Kingdom)

AIM: The aim of this study was to assess the performance of conventional rotative instruments and a piezoelectric device for maxillary sinus floor elevation surgery, and to assess whether application of a resorbable membrane reduces resorption of an augmented site in a randomized clinical trial. MATERIALS AND METHODS: Thirty-six consecutive patients (59.2 ± 10.7 years, range 38-76 years) needing bilateral sinus floor elevation surgery agreed to participate in this study. In a parallel split mouth design randomized clinical trial, in which the allocation of the surgical technique to be used on the determined sites was randomly assigned, one site was always treated with conventional rotative instruments (control group) and the other site with piezosurgery (test group). In addition, in a random order, the grafted sites were covered with a collagen membrane or no membrane. After a healing period of 3-4 months implants were placed. RESULTS: Comparison of clinical features of the test and control sites revealed no differences with regard to wound healing and complications (perforations of the sinus membrane) during or postsurgery (p = .458, p = 1.0, respectively). A clinically insignificant, but statistically shorter operation time was observed when using conventional rotative instruments (11.1 ± 2.4 minutes) than using piezosurgery (15.1 ± 2.9 minutes; p < .001). In both groups, application of a resorbable membrane did not result in less horizontal bone resorption (membrane: 1.43 mm, no membrane: 1.06 mm; p = .062); All 193 implants could be placed with primary stability. One year after functional loading, survival rate was 100%. CONCLUSION: It can be concluded that, for maxillary sinus floor elevation surgery, a piezoelectric device shows no advantages over rotative instruments as well as that placement of a barrier membrane did not reduce resorption of the augmented site.

Rickert D; Vissink A; Slater JJ; Meijer HJ; Raghoebar GM

2013-04-01

324

Retração rápida de caninos associada ao levantamento do seio maxilar/ Rapid canine retraction associated with maxillary sinus lifting  

Scientific Electronic Library Online (English)

Full Text Available Abstract in portuguese INTRODUÇÃO: a retração rápida de caninos por distração do ligamento periodontal é uma técnica de movimentação dentária que permite o fechamento de espaço da extração de primeiros pré-molares em um intervalo de 2 ou 3 semanas, proporcionando uma redução significativa no tempo do tratamento ortodôntico. A técnica cirúrgica para realização deste procedimento é relativamente simples, entretanto, nos casos onde o seio maxilar apresenta-se próximo ao á (more) pice radicular de caninos e pré-molares, sempre há o risco de perfuração da membrana desta cavidade. OBJETIVO: o objetivo deste artigo é apresentar, através de um caso clínico, uma modificação na técnica original proposta por Liou e Huang, onde o levantamento do seio maxilar, executado de forma bastante simples, imprimiu maior controle e segurança ao ato cirúrgico necessário para a realização da retração rápida de caninos. CONCLUSÃO: a retração rápida de caninos é um procedimento exeqüível e o levantamento de seio maxilar pode auxiliar na execução do movimento dentário. Abstract in english INTRODUCTION: Rapid canine distalization using distraction of the periodontal ligament is a tooth movement technique that allows to close the space of extraction of first premolars in about 2 or 3 weeks, reducing orthodontic treatment time considerably. The surgical technique for this procedure is reasonably simple, however, during surgery in the maxilla, always exists the risk of sinus injury when the sinus membrane is close to the apex of canines and first premolars. AI (more) M: The aim of this study is to present a case report showing a modification of the original technique proposed by Liou and Huang, where the maxillary sinus membrane lifting procedure was undertaken in a simple way, leaving it intact, and permitting a safer and more controlled protocol to start the rapid canine retraction. CONCLUSION: Rapid canine retraction is a viable procedure and maxillary sinus lifting may be helpful in providing the tooth movement.

Ribeiro, Paulo Renato Carvalho; Monteiro, Silvia Regina de Souza; Fernandes, Sérgio Henrique Casarim; Oliveira, Gustavo Saggioro

2007-10-01

325

Histomorphometric and immunohistochemical analysis of human maxillary sinus-floor augmentation using porous ?-tricalcium phosphate for dental implant treatment.  

UK PubMed Central (United Kingdom)

OBJECTIVES: This study utilized the constitution and expression of Runx2/Cbfa1 to conduct 6-month-post-operation histomorphometrical and histochemical analysis of osteocalcin in bone regeneration following sinus-floor augmentation procedures using ?-tricalcium phosphate (?-TCP) and autogenous cortical bone. MATERIAL AND METHODS: Thirteen sinuses of nine patients were treated with sinus-floor augmentation using 50% ?-TCP and 50% autogenous cancellous bone harvested from the ramus of the mandible. Biopsies of augmented sinuses were taken at 6 months for histomorphometric and immunohistochemical measurements. RESULTS: Runx2/Cbfa1- and osteocalcin-positive cells were found around TCP particles and on the bone surface. Approximately 60% of cells found around TCP particles stained positive for Runx2/Cbfa1. Fewer cells stained positive for osteocalcin. These positive cells decreased apically with increasing vertical distance from the maxillary bone surface. Histomorphometric analysis showed that the augmented site close to residual bone and periosteum contained approximately 42% bony tissue and 42% soft connective tissue, and the remaining 16% consisted of TCP particles. On the other hand, the augmented bone far from residual bone and periosteum contained 35% bony tissue and 50% soft connective tissue. CONCLUSIONS: Our data suggest that TCP particles attract osteoprogenitor cells that migrate into the interconnecting micropores of the bone-substitute material by 6 months. The augmented site close to residual bone contained a higher proportion of bony tissue and a lower proportion of soft connective tissue than did the augmented site far from residual bone.

Miyamoto S; Shinmyouzu K; Miyamoto I; Takeshita K; Terada T; Takahashi T

2013-08-01

326

Avaliação do recesso lacrimal do seio maxilar: estudo anatômico/ Evaluation of the lacrimal recess of the maxillary sinus: an anatomical study  

Scientific Electronic Library Online (English)

Full Text Available Abstract in portuguese Arelação anatômica entre seio maxilar e ducto lacrimonasal adquiriu maior importância com o advento das microcirugias e cirurgias nasossinusais assistidas por endoscopia e pelo crescente uso da endoscopia nasal na realização das meatotomias médias e dacriocistorrinostomiastransnasais. Não foram encontrados relatos de classificação do seio maxilar quanto ao seu recesso lacrimal, tampouco sua frequência. OBJETIVO: Avaliar a frequência do recesso lacrimal do seio (more) maxilar em peças anatômicas dissecadas. MÉTODO: Foram avaliadas 31 partes de hemicabeças de cadáveres. Procedeu-se à dissecção da área correspondente ao terço médio da face, por acesso lateral, para que se pudesse observar a posição da porção mais lateral do ducto lacrimonasal em relação ao seio maxilar. Os seios maxilares foram avaliados, por dois examinadores simultaneamente, chegando ao consenso do tipo de ducto lacrimonasal. RESULTADOS: Foram encontrados 18 seios maxilares do tipo lateral (58,1%) e 13 do tipo anterior (41,9%). A diferença entre a frequência de seios maxilares do tipo anterior nos lados direito (35,7%) e esquerdo (47,1%) não mostrou significância estatística (p = 0,524). CONCLUSÃO: Observou-se frequência de 41,9% de recessos lacrimais nos seios maxilares. Abstract in english The anatomical relation between the maxillary sinus and the nasolacrimal duct has gained greater importance with the advent of microsurgeries and endoscopic-assisted sinonasal procedures, and the growing use of endonasal surgery to perform middle meatus procedures and transnasal dacryocystorhinostomy. We did not find reports on maxillary sinus classification concerning its lacrimal recess, nor how often it is found. OBJECTIVE: To assess how frequent the lacrimal recess ca (more) n be found in the maxillary sinuses of dissected anatomical specimens. METHOD: We assessed 31 half-heads from cadavers. We dissected the area corresponding to the middle third of the face, by lateral access so as to be able to observe the most lateral portion of the nasolacrimal duct vis-à-vis the maxillary sinus.The maxillary sinuses were assessed by two examiners simultaneously, getting to a consensus in relation to the type of nasolacrimal duct. RESULTS: We assessed 18 maxillary sinuses of the lateral type (58.1%) and 13 anterior sinuses (41.9%). The difference in frequency of the anterior type of maxillary type of the right side (35.7%) and left (47.1%) did not have statistical significance (p = 0.524). CONCLUSION: We found a frequency of 41.9% of lacrimal recesses in the maxillary sinuses.

Navarro, Paulo de Lima; Machado Júnior, Almiro José; Crespo, Agrício Nubiato

2013-02-01

327

Avaliação do recesso lacrimal do seio maxilar: estudo anatômico Evaluation of the lacrimal recess of the maxillary sinus: an anatomical study  

Directory of Open Access Journals (Sweden)

Full Text Available Arelação anatômica entre seio maxilar e ducto lacrimonasal adquiriu maior importância com o advento das microcirugias e cirurgias nasossinusais assistidas por endoscopia e pelo crescente uso da endoscopia nasal na realização das meatotomias médias e dacriocistorrinostomiastransnasais. Não foram encontrados relatos de classificação do seio maxilar quanto ao seu recesso lacrimal, tampouco sua frequência. OBJETIVO: Avaliar a frequência do recesso lacrimal do seio maxilar em peças anatômicas dissecadas. MÉTODO: Foram avaliadas 31 partes de hemicabeças de cadáveres. Procedeu-se à dissecção da área correspondente ao terço médio da face, por acesso lateral, para que se pudesse observar a posição da porção mais lateral do ducto lacrimonasal em relação ao seio maxilar. Os seios maxilares foram avaliados, por dois examinadores simultaneamente, chegando ao consenso do tipo de ducto lacrimonasal. RESULTADOS: Foram encontrados 18 seios maxilares do tipo lateral (58,1%) e 13 do tipo anterior (41,9%). A diferença entre a frequência de seios maxilares do tipo anterior nos lados direito (35,7%) e esquerdo (47,1%) não mostrou significância estatística (p = 0,524). CONCLUSÃO: Observou-se frequência de 41,9% de recessos lacrimais nos seios maxilares.The anatomical relation between the maxillary sinus and the nasolacrimal duct has gained greater importance with the advent of microsurgeries and endoscopic-assisted sinonasal procedures, and the growing use of endonasal surgery to perform middle meatus procedures and transnasal dacryocystorhinostomy. We did not find reports on maxillary sinus classification concerning its lacrimal recess, nor how often it is found. OBJECTIVE: To assess how frequent the lacrimal recess can be found in the maxillary sinuses of dissected anatomical specimens. METHOD: We assessed 31 half-heads from cadavers. We dissected the area corresponding to the middle third of the face, by lateral access so as to be able to observe the most lateral portion of the nasolacrimal duct vis-à-vis the maxillary sinus.The maxillary sinuses were assessed by two examiners simultaneously, getting to a consensus in relation to the type of nasolacrimal duct. RESULTS: We assessed 18 maxillary sinuses of the lateral type (58.1%) and 13 anterior sinuses (41.9%). The difference in frequency of the anterior type of maxillary type of the right side (35.7%) and left (47.1%) did not have statistical significance (p = 0.524). CONCLUSION: We found a frequency of 41.9% of lacrimal recesses in the maxillary sinuses.

Paulo de Lima Navarro; Almiro José Machado Júnior; Agrício Nubiato Crespo

2013-01-01

328

A novel approach revealing the effect of a collagenous membrane on osteoconduction in maxillary sinus floor elevation with ?-tricalcium phosphate  

Directory of Open Access Journals (Sweden)

Full Text Available Calcium phosphates are used in maxillary sinus floor elevation (MSFE) procedures to increase bone height prior to dental implant placement. Whether a collagenous barrier membrane coverage of the lateral window affects bone formation within a bone substitute augmentation is currently an important matter of debate, since its benefit has not been irrefutably proven. Therefore, in this clinical study twelve patients underwent an MSFE procedure with ?-tricalcium phosphate (?-TCP). The lateral window was either left uncovered, or covered with a resorbable collagenous barrier membrane. After a 6-months healing period, bone biopsies were retrieved during implant placement. Consecutive 1 mm regions of interest of these biopsies were assessed for bone formation, resorption parameters, as well as bone architecture using histology, histomorphometry and micro-computed tomography. Comparable outcomes between the groups with and without membrane were observed regarding osteoconduction rate, bone and graft volume, osteoclast number and structural parameters of newly formed bone per region of interest. However, osteoid volume in grafted maxillary sinus floors without membrane was significantly higher than with membrane. In conclusion, our results – obtained with a novel method employed using 1 mm regions of interest – demonstrate that the clinical application of a bioresorbable collagenous barrier membrane covering the lateral window, after an MSFE procedure with ?-TCP, was not beneficial for bone regeneration and even decreased osteoid production which might lead to diminished bone formation in the long run.

EAJM Schulten; H-J Prins; JR Overman; MN Helder; CM ten Bruggenkate; J Klein-Nulend

2013-01-01

329

A novel approach revealing the effect of a collagenous membrane on osteoconduction in maxillary sinus floor elevation with ?-tricalcium phosphate.  

UK PubMed Central (United Kingdom)

Calcium phosphates are used in maxillary sinus floor elevation (MSFE) procedures to increase bone height prior to dental implant placement. Whether a collagenous barrier membrane coverage of the lateral window affects bone formation within a bone substitute augmentation is currently an important matter of debate, since its benefit has not been irrefutably proven. Therefore, in this clinical study twelve patients underwent an MSFE procedure with ?-tricalcium phosphate (?-TCP). The lateral window was either left uncovered, or covered with a resorbable collagenous barrier membrane. After a 6-months healing period, bone biopsies were retrieved during implant placement. Consecutive 1 mm regions of interest of these biopsies were assessed for bone formation, resorption parameters, as well as bone architecture using histology, histomorphometry and micro-computed tomography. Comparable outcomes between the groups with and without membrane were observed regarding osteoconduction rate, bone and graft volume, osteoclast number and structural parameters of newly formed bone per region of interest. However, osteoid volume in grafted maxillary sinus floors without membrane was significantly higher than with membrane. In conclusion, our results - obtained with a novel method employed using 1 mm regions of interest - demonstrate that the clinical application of a bioresorbable collagenous barrier membrane covering the lateral window, after an MSFE procedure with ?-TCP, was not beneficial for bone regeneration and even decreased osteoid production which might lead to diminished bone formation in the long run.

Schulten EA; Prins HJ; Overman JR; Helder MN; ten Bruggenkate CM; Klein-Nulend J

2013-01-01

330

Human maxillary sinus floor elevation as a model for bone regeneration enabling the application of one-step surgical procedures.  

UK PubMed Central (United Kingdom)

Bone loss in the oral and maxillofacial region caused by trauma, tumors, congenital disorders, or degenerative diseases is a health care problem worldwide. To restore (reconstruct) these bone defects, human or animal bone grafts or alloplastic (synthetic) materials have been used. However, several disadvantages are associated with bone graft transplantation, such as limited bone volume, donor-site morbidity, surgical and immune rejection risks, and lack of osseo-integration. Bone tissue engineering is emerging as a valid alternative to treat bone defects allowing the regeneration of lost bony tissue, thereby recovering its functionality. During the last decades, the increasing aged population worldwide has also raised the prevalence of maxillary atrophy. Maxillary sinus floor elevation (MSFE) has become a standard surgical procedure to overcome the reduced amount of bone, thus enabling the placement of dental implants. MSFE aims to increase the bone height in the posterior maxilla, by elevating the Schneiderian membrane and placing the graft material into the surgically created space in the maxillary sinus floor. Importantly, oral bone regeneration during MSFE offers a unique human clinical model in which new cell-based bone tissue engineering applications might be investigated, since biopsies can be taken after MSFE before a dental implant placement and analyzed at the cellular level. New approaches in oral bone regeneration are focusing on cells, growth factors, and biomaterials. Recently, adipose tissue has become interesting as an abundant source of mesenchymal stem cells, which might be applied immediately after isolation to the patient allowing a one-step surgical procedure, thereby avoiding expensive cell culture procedures and another surgical operation. In this new cell-based tissue engineering approach, stem cells are combined with an osteoconductive scaffold and growth factors, and applied immediately to the patient. In this review, MSFE is discussed as a valid model to test bone tissue engineering approaches, such as the one-step surgical procedure. This procedure might be applied in other regenerative medicine applications as well.

Farré-Guasch E; Prins HJ; Overman JR; Ten Bruggenkate CM; Schulten EA; Helder MN; Klein-Nulend J

2013-02-01

331

An acoustical analysis of the effects of maxillary sinus augmentation on voice quality.  

UK PubMed Central (United Kingdom)

OBJECTIVE: Increased experience in sinus lifting procedures has led to a number of literature reports, but the potential effects of sinus lifting on voice quality is not clearly addressed in clinical studies. The aim of this study was to objectively investigate the effects of sinus lifting on alterations in voice quality and, in particular, on vocal resonance. STUDY DESIGN: A total of 17 patients who were in need of bilateral sinus augmentation were recruited. Acoustic analyses were performed before and after surgery. Volume changes in the sinuses were recorded before and after surgery using dental volumetric tomography. The Friedman test with Bonferroni correction was used to analyze the data. RESULTS: Changes in the perturbation parameters of acoustic sound analysis were found to be statistically significant. CONCLUSIONS: We recommend that all patients (especially voice professionals) be informed about the possible effects of sinus lifts on speech and voice alterations.

Ungor C; Sarido?an C; Yilmaz M; Tosun E; Senel FC; Icten O

2013-02-01

332

Long-term changes in graft height after maxillary sinus augmentation, onlay bone grafting, and combination of both techniques: a long-term retrospective cohort study.  

Science.gov (United States)

OBJECTIVES: This investigation focused on long-term changes in graft height, implant survival rate, and peri-implant tissue conditions of dental implants placed in alveolar ridges after augmentation procedures with a follow-up of 10 years. MATERIAL AND METHODS: We conducted a retrospective cohort study with prospective long-term follow-up of 25 patients with edentulous severe atrophic maxillary situations who received a vertical augmentation procedure with autologous bone prior to implant placement. The participants were divided into three groups according to whether they underwent sinus elevation, onlay grafting, or a combination of both techniques. After a four-month healing period, 127 implants were inserted in the corresponding regions. Following a six-month healing period, the participants underwent prosthodontic rehabilitation, incorporating a fixed or removable implant denture. The cohort was clinically and radiographically followed up 1, 5, and 10 years after augmentation. The following parameters were measured: radiographic vertical bone changes, implant loss, peri-implant pocket depth (PD), width of keratinized mucosa (KM), sulcus fluid flow rate (SFFR), and the radiographic distance between the implant shoulder and the first visible bone-to-implant contact (DIB). RESULTS: Seven implants were lost during the observation period, resulting in a cumulative 10-year survival rate of 94.48%. Significant bone loss occurred during the first 12 months, after which the resorption slowed down and bone height eventually stabilized. After 10 years, the total vertical bone loss was 27.51% after onlay grafting, 28.14% after sinus elevation, and 30.24% in the combination group, with no statistically significant between-group differences. Peri-implant follow-up examinations revealed a positive correlation between SFFR and PD, respectively, DIB, and a negative correlation between SFFR and KM. CONCLUSION: The treatment method does not seem to impact vertical bone loss following augmentation using autologous grafts. This approach results in long-term stability of dental implants. A sufficient width of keratinized peri-implant mucosa is important to prevent peri-implant bone loss and inflammation. PMID:23075057

Schmitt, Christian; Karasholi, Tarek; Lutz, Rainer; Wiltfang, Jörg; Neukam, Friedrich-Wilhelm; Schlegel, Karl Andreas

2012-10-17

333

Multidisciplinary therapy consisting of minimally invasive resection, irradiation, and intra-arterial infusion of 5-fluorouracil for resectable T3/T4 maxillary sinus carcinomas  

International Nuclear Information System (INIS)

[en] Current goals for the treatment of maxillary sinus carcinoma include preservation of vision, eating, communication, and appearance as well as cure. 121 Japanese patients who presented with maxillary sinus carcinoma between 1979 and 2005 were analyzed retrospectively. There were 77 males and 44 females, with a median age of 63 years. All patients underwent multimodality therapy including surgery through a sublabial incision, radiotherapy, and intra-arterial chemotherapy. The regional lymph nodes were treated only in patients with neck involvement. Mean follow-up period was 79 months. The 5-year overall survival rates and local control rates were 73% and 72%, respectively. The 5-year local control rates for patients with T2 lesions were 71%; for patients with T3 lesions, 88%; and for patients with T4a lesions, 60%; and for patients with T4b lesions, 56%. In patients with squamous cell carcinoma, the 5-year local control rates were 76%. In patients with non-squamous cell carcinoma, the 5-year local control rates were 54%. There was significant difference in local control rates among these groups. Control of the primary site is important in the curative treatment of maxillary sinus carcinoma. Combined therapy with conservative surgery, radiotherapy, and regional chemotherapy is an effective method for maxillary sinus carcinoma. (author)

2012-01-01

334

Positron Emission Tomography-CT, CT, and MR Imaging Findings of Tumor-Mimicking Organized Hematoma in the Maxillary Sinus: Two Case Reports  

International Nuclear Information System (INIS)

Here in, we report two cases of organized hematoma in the maxillary sinus mimicking inverted papilloma. These cases presented as heterogeneously enhancing, expansible masses on computed tomography and magnetic resonance imaging, and also evidenced mild uneven hypermetabolism on positron emission tomography-computed tomography. Organized hematoma should be included in the differential diagnosis of inverted papilloma.

2011-01-01

335

Positron Emission Tomography-CT, CT, and MR Imaging Findings of Tumor-Mimicking Organized Hematoma in the Maxillary Sinus: Two Case Reports  

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Here in, we report two cases of organized hematoma in the maxillary sinus mimicking inverted papilloma. These cases presented as heterogeneously enhancing, expansible masses on computed tomography and magnetic resonance imaging, and also evidenced mild uneven hypermetabolism on positron emission tomography-computed tomography. Organized hematoma should be included in the differential diagnosis of inverted papilloma.

Park, Ju Young; Lee, In Ho; Song, Chang Sun; Kim, Song Sun [Dept. of Radiology, Chungnam National Hospital, Chungnam University School of Medicine, Daejeon (Korea, Republic of); Kim, Kyung Hee [Dept. of Pathology, Chungnam National Hospital, Chungnam University School of Medicine, Daejeon (Korea, Republic of)

2011-08-15

336

Studies on serum protein fractions of patients with maxillary sinus cancer undergoing a combination of radiotherapy and chemotherapy  

International Nuclear Information System (INIS)

39 cases of maxillary sinus cancer were treated with combined intra-arterial infusion of bleomycin and external irradiation of 60Co?-ray. Serum protein fractions in the sera of 39 cases of maxillary sinus cancer were examined through the radial immunodiffusion method, 1) before radiation treatment was given, 2) at the completion of radiation therapy and 3) after radiation therapy, ranging from 1 month to 36 months. The sera obtained from patients with maxillary sinus cancer before treatment had concentrations of: ?1-acid glycoprotein (?1AG), ?1-antitrypsin (?1AT), ?1-chymotrypsin (?1X), haptoglobin (Hp), ceruloplasmin (Cp), ?1C/A glycoprotein (C3), hemopexin (Hx), IgG and of IgA which were elevated compared with those of normal controls: However, the serum concentrations of: prealbumin (Prealb), albumin (Alb), transferrin (Tf), ?2-macroglobulin (?2M), HS-glycoprotein (?2HS) and of IgM were reduced significantly. At the completion of radiation therapy, the concentrations of: Prealb, Tf, ?1AG, ?1X, Hx, C3, IgG, IgA and of IgM rose slightly as compared with levels before radiation therapy, and the concentrations of Alb, of ?2HS and of ?1AT were reduced. However, there was no significant difference between the former and the latter data. In patients who died within 12 months after treatment, the Prealb, Alb, Tf, ?2HS, and IgM levels examined before radiation therapy were reduced and the ?1AG level was elevated compared with those who had lived more than 13 months. The Prealb, Alb, Tf, and IgM levels, after radiation therapy were reduced; while the ?1AG, Hp, and ?1X levels were elevated. In patients who had lived more than 13 months, after treatment, concentrations of Prealb, of Alb, of Tf, of C3, of Hx, of IgG, of IgA and of IgM rose before and after radiation therapy, compared with those who died within 12 months. (author).

1985-01-01

337

Reliability of Periapical Radiographs and Orthopantomograms in Detection of Tooth Root Protrusion in the Maxillary Sinus: Correlation Results with Cone Beam Computed Tomography  

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Full Text Available Objectives: The purpose of the present study was to investigate the reliability of both periapical radiographs and orthopantomograms for exact detection of tooth root protrusion in the maxillary sinus by correlating the results with cone beam computed tomography.Material and methods: A database of 1400 patients scanned with cone beam computed tomography (CBCT) was searched for matching periapical (PA) radiographs and orthopantogram (OPG) images of maxillary premolars and molars. Matching OPG images datasets of 101 patients with 628 teeth and PA radiographs datasets of 93 patients with 359 teeth were identified. Four observers assessed the relationship between the apex of tooth root and the maxillary sinus per tooth on PA radiographs, OPG and CBCT images using the following classification: root tip is in the sinus (class 1), root tip is against the sinus wall (class 2) and root tip is not in the sinus (class 3).Results: Overall correlation between OPG and CBCT images scores was 50%, 26% and 56.1% for class 1, class 2 and class 3, respectively (Cohen’s kappa [weighted] = 0.1). Overall correlation between PA radiographs and CBCT images was 75.8%, 15.8% and 56.9% for class 1, class 2 and class 3, respectively (Cohen’s kappa [weighted] = 0.24). In both the OPG images and the PA radiographs datasets, class 1 correlation was most frequently observed with the first and second molars.Conclusions: The results demonstrated that both periapical radiographs and orthopantomograms are not reliable in determination of exact relationship between the apex of tooth root and the maxillary sinus floor. Periapical radiography is slightly more reliable than orthopantomography in determining this relationship.

Bassam A. Hassan

2010-01-01

338

Nodular fasciitis over the anterior wall of the maxillary sinus: a case report and review of the literature.  

UK PubMed Central (United Kingdom)

Nodular fasciitis (NF) is a benign tumor that grows extending from the muscular fascia to the subcutaneous tissue and, less frequently, into the underlying muscle. The cause of such proliferation is unknown, although trauma is believed to be important because of the location of these lesions over bony prominences. NF can often be confused with myofibromatosis or a sarcoma owing to its rapid rate of growth, rich cellularity, and mitotic activity. It is important, therefore, to distinguish the lesion from a more aggressive condition. NF that occurs in otherwise healthy individuals usually presents with a history of rapid growth, and is commonly found in the upper extremities and on the chest and trunk. We present a case of NF in a 39-year-old female patient occurring over the anterior wall of the maxillary sinus, along with a review of the literature.

Chaithanyaa N; Somannavar P; Annajal NA

2013-01-01

339

Plasmablastic lymphoma of the maxillary sinus in an HIV-negative patient: a case report and literature review.  

UK PubMed Central (United Kingdom)

Plasmablastic lymphoma (PBL) is a rare and aggressive variant of diffuse large B cell lymphoma. The prognosis of PBL patients is poor. The majority of patients succumb to a fulminant disease course, with most dying in the first year after diagnosis. The small number of HIV-negative PBL cases reported in the literature to date is composed of single case reports and small case series. Consequently, the natural history of the disease in HIV-negative individuals and the optimum treatment are not well characterized. Intensive induction chemotherapy has been associated with marked improved overall survival. However the optimal regimen has not been defined. We describe the third case of PBL of the maxillary sinus which occurred in a 24-year old HIV-negative man. We outline the clinicopathological features and report success using a hyper-CVAD regimen with 6 cycles and consolidation radiation therapy yielding a complete remission of four years.

Saraceni C; Agostino N; Cornfield DB; Gupta R

2013-12-01

340

Use of piezosurgery during maxillary sinus elevation: clinical results of 40 consecutive cases.  

Science.gov (United States)

The aim of this study was to evaluate the performance of piezoelectric devices during sinus elevation to determine the percentage of sinus membrane perforation and the time required to perform the antrostomy and elevation of the membrane. A total of 35 patients and 40 grafted sinuses were included. The parameters recorded were bony window length and height, bone thickness, osteotomy area, operative time, and number of perforations. Seven (17.5%) membrane perforations were observed, which were repaired with resorbable membranes. The mean length, height, and thickness of the osteotomy were 13.8 ± 2.9 mm, 6.9 ± 1.4 mm, and 1.4 ± 0.4 mm, respectively. The mean osteotomy area was 96.8 ± 32.2 mm(2), and the mean operative time was 10.3 ± 2.1 minutes. This study demonstrated that a piezoelectric device could be an attractive alternative for successful sinus augmentation. PMID:23057061

Cassetta, Michele; Ricci, Laura; Iezzi, Giovanna; Calasso, Sabrina; Piattelli, Adriano; Perrotti, Vittoria

2012-12-01

 
 
 
 
341

Use of piezosurgery during maxillary sinus elevation: clinical results of 40 consecutive cases.  

UK PubMed Central (United Kingdom)

The aim of this study was to evaluate the performance of piezoelectric devices during sinus elevation to determine the percentage of sinus membrane perforation and the time required to perform the antrostomy and elevation of the membrane. A total of 35 patients and 40 grafted sinuses were included. The parameters recorded were bony window length and height, bone thickness, osteotomy area, operative time, and number of perforations. Seven (17.5%) membrane perforations were observed, which were repaired with resorbable membranes. The mean length, height, and thickness of the osteotomy were 13.8 ± 2.9 mm, 6.9 ± 1.4 mm, and 1.4 ± 0.4 mm, respectively. The mean osteotomy area was 96.8 ± 32.2 mm(2), and the mean operative time was 10.3 ± 2.1 minutes. This study demonstrated that a piezoelectric device could be an attractive alternative for successful sinus augmentation.

Cassetta M; Ricci L; Iezzi G; Calasso S; Piattelli A; Perrotti V

2012-12-01

342

A new approach to aesthetic maxillofacial surgery: surgical treatment of unilateral exophthalmos due to maxillary sinus mucocele.  

UK PubMed Central (United Kingdom)

Maxillary sinus mucocele, known as a rare condition, can cause major therapeutic difficulties, especially when it invades the orbit leading to exophthalmia. Treatment is very difficult because the eye globe has to be repositioned, and the facial symmetry needs to be reconstructed as a result of malar bone invasion. This article reports the case of a 54-year-old patient with unilateral exophthalmia caused by the evolution of a maxillary mucocele that extended toward the orbit after destroying the malar bone and the orbital floor. The treatment consisted of a 1-step restoration of both the orbit floor and the malar bone using a temporomandibular flap composed of 2 bone fragments. Lipostructure and a titanium mesh to reconstruct the calvarial defect were necessary to restore facial aesthetics after placing back the eye globe in its initial site. After surgery, the patient followed a complex rehabilitation program including massage kinesiotherapy and psychological consultation and support. These had an essential contribution to the successful final outcome in terms of psychological impact, functionality, and aesthetics.

Costan VV; Popescu E; Stratulat SI

2013-05-01

343

A new approach to aesthetic maxillofacial surgery: surgical treatment of unilateral exophthalmos due to maxillary sinus mucocele.  

Science.gov (United States)

Maxillary sinus mucocele, known as a rare condition, can cause major therapeutic difficulties, especially when it invades the orbit leading to exophthalmia. Treatment is very difficult because the eye globe has to be repositioned, and the facial symmetry needs to be reconstructed as a result of malar bone invasion. This article reports the case of a 54-year-old patient with unilateral exophthalmia caused by the evolution of a maxillary mucocele that extended toward the orbit after destroying the malar bone and the orbital floor. The treatment consisted of a 1-step restoration of both the orbit floor and the malar bone using a temporomandibular flap composed of 2 bone fragments. Lipostructure and a titanium mesh to reconstruct the calvarial defect were necessary to restore facial aesthetics after placing back the eye globe in its initial site. After surgery, the patient followed a complex rehabilitation program including massage kinesiotherapy and psychological consultation and support. These had an essential contribution to the successful final outcome in terms of psychological impact, functionality, and aesthetics. PMID:23714910

Costan, Victor Vlad; Popescu, Eugenia; Stratulat, Sorin Ioan

2013-05-01

344

Sarcomatoid carcinoma of the maxillary sinus: A rare head and neck tumor  

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Sarcomatoid carcinomas are rare tumors. These tumors have been reported at other sites, but head and neck origin is extremely uncommon. We report here a rare case of sarcomatoid carcinoma involving the maxilla. Only four such cases with maxillary origin have been discussed in English literature earl...

Kumar Milind; Goyal Shikha; Bahl Amit; Das Prasenjit; Sharma D; Ray Ruma; Rath G

345

Histological evaluation of healing after transalveolar maxillary sinus augmentation with bioglass and autogenous bone.  

UK PubMed Central (United Kingdom)

OBJECTIVES: The aim was to evaluate histologically the outcome of a bioglass and autogenous bone (at 1 : 1 ratio) composite implantation for transalveolar sinus augmentation. METHODS: In 31 patients, during implant installation ca. 4 months after sinus augmentation, biopsies were harvested through the transalveolar osteotomy by means of a trephine bur and non-decalcified sections through the long axis of the cylinder were produced. After a strict selection process, taking into account the presurgical residual bone height and biopsy length, 8 and 15 biopsies representing the new tissues formed inside the sinus and the transalveolar osteotomy, respectively, qualified for analysis. The tissue fractions occupied by newly formed bone (mineralized tissue+bone marrow), soft connective tissue, residual biomaterial+empty spaces, and debris inside the sinus cavity or the transalveolar osteotomy were estimated. RESULTS: Bone and connective tissue fraction in the newly formed tissues inside the sinus cavity averaged 23.4 ± 13.2% and 54.1 ± 23.5%, respectively. Residual biomaterial, empty spaces, and debris averaged 1.9 ± 3.5%, 10.5 ± 6.3%, and 8.4 ± 14.5%, respectively. In the transalveolar osteotomy, bone and connective tissue fraction averaged 41.6 ± 14.3% and 46.1 ± 13%, respectively, while the amount of residual biomaterial, empty spaces, and debris was 2.8 ± 5%, 4.7 ± 1.9%, and 3.2 ± 2.6%, respectively. Statistically significant differences between the sinus cavity and the transalveolar osteotomy were found only for bone and empty spaces' values (P=0.02 and 0.04, respectively). CONCLUSION: Sinus augmentation with a bioglass and autogenous bone composite is compatible with bone formation that, in a short distance from the floor of the sinus, shows similar density as that reported previously for other commonly used bone substitutes. New bone fraction inside the transalveolar osteotomy was almost twice as much as in the sinus cavity, while the amount of residual biomaterial was much less than that inside the sinus.

Stavropoulos A; Sima C; Sima A; Nyengaard J; Karring T; Sculean A

2012-01-01

346

Estudio Morfométrico del Seno Maxilar Mediante Tomografías Computadorizadas: Evaluación de la Reconstrucción Total de Piso Sinusal/ Morphometric Study of Maxillary Sinus by Computed Tomography: Assessment of Sinus Floor Bone Reconstruction  

Scientific Electronic Library Online (English)

Full Text Available Abstract in spanish La rehabilitación con implantes dentales en maxila posterior es compleja debido a la presencia del seno maxilar con sus diferentes variaciones anatómicas; el objetivo de este trabajo fue determinar el volumen óseo intrasinusal necesario para realizar la instalación de uno o mas implantes dentarios sin invadir la membrana sinusal. En 22 cráneos fueron evaluados 40 senos maxilares mediante tomografías computadorizadas (TC) realizando mediciones en los cortes axiales, (more) coronales y sagitales. Se clasificaron los senos maxilares según el remanente de hueso alveolar y se instalo un implante de forma virtual en el lugar del primer molar superior, mediante el software implant view. Con estas medidas volumétricas finales se estableció las indicaciones reconstructivas intra sinusales a partir de los sitios donantes intrabucales mas frecuentemente evaluados en la literatura mundial. El grupo I (1mm a 4mm de reborde alveolar remanente) presentaba déficit óseo de hasta 1,98cm3, el grupo II (4mm a 7mm) presentaba déficit de 1,06cm3; el grupo III (7mm a 10mm) presentaba un déficit de 0,67 cm3; a partir de estos resultados podemos concluir que los sitios intrabucales pueden ser utilizados en la mayoría de los grupo estudiados, incluyendo las reconstrucciones bilaterales. Abstract in english Rehabilitation with dental implants in posterior maxilla is difficult because of the presence of maxillary sinus with anatomical variations. The aim of this research was to evaluate the sinus volume to install one or more implants without invading the sinus membrane. Forty (40) maxillary sinuses were evaluated in 22 skulls by computed tomography measuring in the axial, coronal and sagittal slice. The sinus were classified according to the remaining alveolar bone and a den (more) tal implant in the place of the upper first molar was virtually installed by implant view software. With this final volumetric measurement the surgical indications were established for inlay reconstruction from intra oral donor sites frequently evaluated in world literature. Group I (1mm to 4mm of alveolar ridge) showed a bone deficit of 1.98 cm3, group II (4mm to 7mm) showed a deficit of 1.06 cm3; group III (7mm to 10mm) showed a 0.67 cm3 deficit. In view of these results we concluded that intra oral donor site can be used for the three study groups and in some cases in bilateral reconstruction.

de Moraes, Paulo Hemerson; Costa, Marcelo Victor Omena Caldas; Olate, Sergio; Caria, Paulo Henrique Ferreira; Barbosa, José Ricardo de Albergaria

2012-06-01

347

Combined therapy with surgery, radiation and chemotherapy for T3-T4 squamous cell carcinoma of maxillary sinus. National Cancer Center Hospital East experience  

International Nuclear Information System (INIS)

Since 1960's, many institutes treated carcinoma of maxillary sinus with combined therapy: surgery, radiation, and intra-arterial infusion chemotherapy in Japan. On the other hands, surgery followed by radiation or chemoradiation is the standard option of treatment for sinonasal carcinoma in western countries. This study reports the NCCHE's 14-year experience with maxillary squamous cell cancer, treated with surgical resection followed by radiation, or trimodal combination therapy. Eighty-seven previously untreated, T3-T4 status patients with squamous cell carcinoma of maxillary sinus underwent treatment at our division. During the average follow-up period of 85.9 months, the 5-year overall survival and local control rate were 47.3% and 60%, respectively. The 5-year overall survival among the patients had T3 and T4a tumor were 59.0% and 51.6%. However, all patients with T4b tumor died, their median survival time was 9.1 months. Almost all patients had T3 and T4b were treated with trimodal therapy, a third patient of T4a status underwent treatment with surgery followed by radiation. There was no difference in overall survival according to treatment in T4a patients. We should consider the other approach for treatment, like superselective high-dose cisplatin infusion with concomitant radiotherapy in patients with advanced cancer of maxillary sinus in future. (author)

2012-01-01

348

Granuloma reparativo de células gigantes dos seios etmoidal e maxilar Giant cell reparative granuloma of the ethmoid and maxillary sinuses  

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Full Text Available O granuloma reparativo de células gigantes é um tumor ósseo não-neoplásico incomum que representa menos que 7% dos tumores mandibulares, sua localização mais freqüente. Porém, já foi descrito em seios paranasais, ossos temporais e órbita. O presente trabalho descreve um paciente com granuloma reparativo de células gigantes em seios maxilar e etmoidal, comprometendo também, em menor extensão, os seios esfenoidal e frontal, e um outro paciente com acometimento circunscrito ao seio maxilar. Clinicamente, apresentam-se com proptose acentuada e macromala unilaterais, respectivamente. Os achados clínicos, tomográficos, histopatológicos e terapêuticos são descritos, ao lado de uma revisão da literatura com ênfase no diagnóstico diferencial, sobretudo com o tumor de células gigantes.The giant cell reparative granuloma is a non-neoplasic and uncommon bone tumor that represents fewer than 7% of the mandibular tumors, its most frequent site. However, this tumor has been described in paranasal sinuses, temporal bones and orbit. The present article reports a patient with a maxillo-ethmoidal giant cell reparative granuloma affecting esphenoidal and frontal sinuses, clinically with unilateral severe proptosis and facial deformity, and other patient with maxillary disease associated to macromala. The clinical, tomographic, histophatological and therapeutical findings are described. In addition, a literature review with emphasis in differential diagnosis is offered, in particular with bone giant cell tumor.

Fernando P. Gaspar Sobrinho; Ana C. Martins; Lívia S. Queiroz; Aldo C. do Valle; Hélio A. Lessa

2004-01-01

349

A clinical and histological case series study on calcium sulfate for maxillary sinus floor augmentation and delayed placement of dental implants.  

UK PubMed Central (United Kingdom)

BACKGROUND: Maxillary sinus floor augmentation is a procedure that is indicated in cases when the volume of the posterior maxillary bone is inadequate. The goal of this treatment is to obtain sufficient amount of bone tissue in order to gain osseointegration of endosseous implants. PURPOSE: The purpose of this study was to conduct a clinical and histological analysis of calcium sulfate (CaS) as bone graft substitute in sinus floor augmentation. MATERIAL AND METHODS: Ten patients with edentulous maxillas were included in this study. They had moderate to severe atrophy of the posterior maxilla. Surgiplaster (Classimplant®, Rome, Italy) was used as graft material in the maxillary sinus and was covered by BioGide® (Geistlish Pharmaceutical, Wolhusen, Switzerland). After 4 months of graft healing, 40 dental implants were placed and a biopsy for histomorphometry was taken at these occasions. The specimens were viewed by light microscope, and the extent of bone regeneration and remaining graft material was evaluated. Radiographs were taken at the time of sinus augmentation and after 4 months of graft healing. RESULTS: At the time of abutment surgery, one implant was considered as a failure and was consequently removed, giving a survival rate of 97.5% after 1 year of loading. Radiographs showed a mean of 26.5% shrinkage of the augmented area. A significant resorption of CaS was noted with a mean value of 8.8% of remaining graft material after 4 months of healing. The biopsies also revealed new bone formation with a mean value of 21.2% of the total biopsy area. Histology showed signs of an acellular substitution of CaS with bone-like tissue. CONCLUSION: The results of this study show that new bone regeneration occurs in the maxillary sinus after augmentation with CaS. This enabled successful placement, integration, and loading of dental implants in the posterior maxilla, as only 1 of 40 implants was lost during 1 year of follow-up.

Dasmah A; Hallman M; Sennerby L; Rasmusson L

2012-04-01

350

Histological and histomorphometrical analyses of biopsies harvested 11 years after maxillary sinus floor augmentation with deproteinized bovine and autogenous bone.  

UK PubMed Central (United Kingdom)

OBJECTIVE: The purpose of the present study was to histologically and histomorphometrically evaluate the long-term tissue response to deproteinized bovine bone (DPBB) particles used in association with autogenous bone and to compare particle size after 6 months and 11 years, in the same patients, in order to determine possible resorption. MATERIAL AND METHODS: Twenty consecutive patients (14 women and six men) with a mean age of 62 years (range 48-69 years) with severe atrophy of the posterior maxilla were included in this study. Thirty maxillary sinuses with <5 mm subantral alveolar bone were augmented with a mixture of 80% DPBB and 20% autogenous bone. Eleven years (mean 11.5 years) after augmentation, biopsies were taken from the grafted areas of the 11 patients who volunteered to participate in this new surgical intervention. The following histomorphometrical measurements were performed in these specimens: total bone area in percentage, total area of the DPBB, total area of marrow space, the degree of DPBB-bone contact (percentage of the total surface length for each particle), the length of all DPBB particles and the area of all DPBB particles. The length and the area of the particles were compared with samples harvested from the same patients at 6 months (nine samples) and pristine particles from the manufacturer. RESULTS: The biopsies consisted of 44.7+/-16.9% lamellar bone, 38+/-16.9% marrow space and 17.3+/-13.2% DPBB. The degree of DPBB to bone contact was 61.5+/-34%. There were no statistically significant differences between the length and area of the particles after 11 years compared with those measured after 6 months in the same patients or to pristine particles from the manufacturer. CONCLUSION: DPBB particles were found to be well integrated in lamellar bone, after sinus floor augmentation in humans, showing no significant changes in particle size after 11 years. To cite this article: Mordenfeld A, Hallman M, Johansson CB, Albrektsson T. Histological and histomorphometrical analyses of biopsies harvested 11 years after maxillary sinus floor augmentation with deproteinized bovine and autogenous bone.

Mordenfeld A; Hallman M; Johansson CB; Albrektsson T

2010-09-01

351

The importance of the primary reconstruction of the traumatized anterior maxillary sinus wall.  

Science.gov (United States)

This study evaluates the importance of specific posttraumatic reconstruction of the fractured anterior sinus wall. Several methods of different complexity of reconstruction are being compared by means of radiologic, rhinoscopic, and clinical data. Four groups of a total of 207 patients (age, 18-73 years; follow-up average, 4.2 years) with midfacial fractures, divided by operation technique and year, were evaluated. Control groups 1 to 3 received standard procedures without special regard on the reconstruction of the anterior sinus wall; the study group received specific reconstruction. The study group 4 showed a lower complication rate in nearly all measured parameters in comparison to groups 1 and 2. Study group 4 had the smallest incidences of posttraumatic sequelae in radiologic examinations; the clinical outcome was even to group 3. During open reduction and fixation procedures of midfacial fractures, attention should be given to the reconstruction of the anterior sinus wall to avoid postoperative discomfort. PMID:18362733

Ballon, Alexander; Landes, Constantin A; Zeilhofer, Hans F; Herzog, Michael; Klein, Cornelius; Sader, Robert

2008-03-01

352

A prospective 1-year clinical and radiographic study of implants placed after maxillary sinus floor augmentation with synthetic biphasic calcium phosphate or deproteinized bovine bone.  

UK PubMed Central (United Kingdom)

BACKGROUND: The technique of using bone grafts or different biomaterials for augmentation of the maxillary sinus prior to implant placement is well accepted by clinicians. However, clinical documentation of some bone substitutes is still lacking. Purpose: This prospective study was designed to evaluate the success rate of implants placed after maxillary sinus augmentation with a novel synthetic biphasic calcium phosphate (BCP) or deproteinized bovine bone (DBB), the latter acting as control. MATERIAL AND METHODS: Nine edentulous patients and two partially edentulous patients with a mean age of 67 years with a bilateral need for sinus augmentation, < 5 mm residual bone in the floor of the sinus and a crestal width ? 4 mm, were included in the study. After bilateral elevation of the Schneiderian membrane, all patients were randomized for augmentation with synthetic BCP in one side and DBB in the contralateral side. After 8 months of graft healing, 62 implants with an SLActive surface were placed. Implant survival, graft resorption, plaque index, bleeding on probing, sulcus bleeding index, probing pocket depth, and implant success rate were evaluated after 1 year of functional loading. RESULTS: After a mean of 118 days, all patients received their fixed prosthetic constructions. One implant was lost in each biomaterial, giving an overall survival rate of 96.8%. Success rates for implants placed in BCP and DBB were 91.7 and 95.7%, respectively. No significant difference in marginal bone loss was found around implants placed in BCP, DBB, or residual bone, respectively. The mean graft resorption was 0.43 mm (BCP) and 0.29 mm (DBB). CONCLUSION: In this limited study, implant success rate was not dependent on the biomaterial used for maxillary sinus augmentation. Similar results were found after 1 year of functional loading for implants placed after sinus augmentation using BCP or DBB.

Lindgren C; Mordenfeld A; Hallman M

2012-03-01

353

Diversity of immunoglobulin E-encoding transcripts in sinus mucosa of subjects diagnosed with non-allergic fungal eosinophilic sinusitis.  

UK PubMed Central (United Kingdom)

BACKGROUND: The role of allergy in the aetiopathogenesis of chronic rhinosinusitis (CRS) remains controversial. For example, in some cases with sinus fungal infections allergy can be demonstrated by standard tests. In other cases, such signs can be absent despite elevated levels of IgE-positive cells in sinus tissue and the presence of IgE and eosinophils in the sinus mucous. OBJECTIVE: To define the nature of molecular diversity in antibodies of the IgE isotype at the site of local inflammation in subjects diagnosed with non-allergic fungal eosinophilic sinusitis (NAFES). METHODS: The local occurrence and sequence characteristics of IgE-encoding transcripts in NAFES patients were investigated and compared with sequences found in subjects diagnosed with CRS featuring systemic allergy. These sequences have also been compared with other reported IgE-encoding transcriptomes. Results IGHV genes derived from major subgroups 1, 3, 4 and 5 and a diverse set of IGHD and IGHJ genes were shown to create the IgE repertoire in patients diagnosed with NAFES and CRS. The average lengths of the third hypervariable loop in these populations were 15.8 and 14.6 residues. The sequences showed evidence of extensive somatic hypermutation (mutation frequency: NAFES, 6.4 ± 3.2%; CRS, 7.0 ± 4.4%) with substitutions targeted to complementarity-determining regions. These sequence collections thus show extensive similarities to those found in other polyclonal Ig repertoires including those encoding IgE. CONCLUSION AND CLINICAL RELEVANCE: We conclude that sinus IgE-encoding transcripts in subjects diagnosed with NAFES show evidence of conventional IgE responses and we suggest that allergens with characteristics of classical antigens should be investigated for a role in the local response occurring in NAFES. This investigation illustrates that assessment of local immunity might be an important diagnostic tool in conditions like NAFES with no systemic signs of allergy to identify or rule out an allergic component of the patient's disease.

Levin M; Tan LW; Baker L; Wormald PJ; Greiff L; Ohlin M

2011-06-01

354

Benign neurilemmoma in the infratemporal fossa involving maxillary sinus and pterygopalatine fossa  

International Nuclear Information System (INIS)

Neurilemmoma is a benign tumor of the nerve sheath that arises on cranial and spinal nerve roots as well as along the course of peripheral nerves. A case of a neurilemmoma that arose in the left infratemporal fossa of a 29- year-old male was presented. Plain radiographs, enhanced computed tomography scan, and magnetic resonance imaging demonstrated a large, well-circumscribed, heterogeneously enhanced mass with extension into the pterygopalatine fossa. Displaced by the large mass, bowing-in of the posterior maxillary antral wall was noted and a provisional diagnosis of a benign soft tissue tumor was made. The mass was completely excised and a diagnosis of neurilemmoma was confirmed.

2004-01-01

355

Volumetric changes of the graft after maxillary sinus floor augmentation with Bio-Oss and autogenous bone in different ratios: a radiographic study in minipigs.  

UK PubMed Central (United Kingdom)

OBJECTIVE: The objective of the present study was to learn about the volumetric changes of the graft after maxillary sinus floor augmentation with Bio-Oss and autogenous bone from the iliac crest or the mandible in different ratios in minipigs. MATERIAL AND METHODS: Bilateral maxillary