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1.
Rev. Soc. Odontol. La Plata ; 31(60): 23-26, jul. 2021. ilus
Article in Spanish | LILACS | ID: biblio-1284468

ABSTRACT

Las neoplasias malignas de la cavidad oral en gran medida (90%) consisten en carcinoma de células escamosas que surgen de la mucosa de revestimiento. El 10% restantes de neoplasias malignas orales de un grupo heterogéneo de tumores de diferente etiología. Presentamos dos casos de patología oncohematológica: Mieloma Múltiple (AU)


Malignant neoplasms of the oral cavity largely (90%) consist of squamous cell carcinoma arising from the lining mucosa. e remaining 10% of oral malignancies from a heterogeneous group of tumors of different etiology. We present two cases of oncohematological pathology: Multiple Myeloma (AU)


Subject(s)
Humans , Male , Middle Aged , Plasmacytoma/diagnosis , Plasmacytoma/pathology , Plasmacytoma/diagnostic imaging , Mouth Neoplasms/diagnosis , Radiotherapy , Biopsy/methods , Tomography, X-Ray Computed , Oral Surgical Procedures/methods , Diphosphonates/therapeutic use , Maxillary Sinus/surgery , Multiple Myeloma
2.
Rev. Odontol. Araçatuba (Impr.) ; 42(1): 33-37, jan.-abr. 2021. ilus
Article in Portuguese | LILACS, BBO | ID: biblio-1252851

ABSTRACT

Durante a formação dentária, distúrbios de desenvolvimento podem acontecer, causando anomalias de número, forma, tamanho, estrutura e posição, além de apresentarem anormalidade no padrão sequencial de irrupção. Uma boa anamnese, associada a palpação e exames de imagens são indispensáveis para um diagnóstico precoce e favorável destas alterações. Os exames de imagem determinarão a relação espacial destes dentes com as estruturas nobres adjacentes. O objetivo deste trabalho é relatar a presença de supranumerário unilateral e impactação bilateral de caninos permanentes, ambas anomalias com proximidade da cavidade nasal e seio maxilar, ressaltando a importância do diagnóstico preciso através de exames clínico e de imagens, que direcionam o planejamento terapêutico específico para cada caso, bem como a associação multidisciplinar para obtenção de um resultado satisfatório do quadro e melhora da qualidade de vida do paciente(AU)


During dental formation, developmental disorders can occur, causing anomalies of number, shape, size and position, in addition to presenting abnormality in the sequential pattern of irruption. Anamnesis associated with palpation are indispensable for an early diagnosis of these alterations. Imaging exams will determine the spatial relationship between these teeth and the adjacent noble structures. The aim of this study was to report the presence of unilateral supernumerary and bilaterally impacted canines, both anomalies with proximity of nasal cavity and maxillary sinus, emphasizing the importance of accurate diagnosis through clinical and imaging exams, that direct the specific therapeutic planning for each case, as well as the multidisciplinary association to obtain satisfactory results and improve the life quality of patients(AU)


Subject(s)
Tooth, Supernumerary , Tooth, Unerupted/therapy , Tooth, Unerupted/diagnostic imaging , Activator Appliances , Cuspid , Maxillary Sinus , Medical History Taking , Nasal Cavity
3.
Rev. cir. traumatol. buco-maxilo-fac ; 21(1): 40-43, jan.-mar. 2021. ilus, tab
Article in Portuguese | LILACS, BBO | ID: biblio-1252437

ABSTRACT

Introducão: O granuloma central de células gigantes é uma lesão intraóssea incomum com predileção pela região mandibular e sexo feminino. Classifica-se como agressivo ou não agressivo de acordo com seu comportamento clínico. O tratamento de eleição para este tipo de lesão varia desde modalidades não cirúrgicas até a ressecção óssea. Relato de caso: Paciente do sexo masculino, 21 anos, com lesão osteolítica agressiva em região de parede anterior de seio maxilar direito, tratada com excisão cirúrgica e reconstrução imediata com malha de titânio sem interferências estéticas ou funcionais no pósoperatório. Considerações finais: O granuloma central de células gigantes tem apresentação clínica diversa e o tratamento deve levar em consideração as características da lesão em cada paciente, em lesões agressivas, o manejo cirúrgico é sempre o indicado... (AU)


Introduction: Central giant cell granuloma is an uncommon intraosseous lesion with a predilection for the mandibular anterior region and females. It is classified as aggressive or non-aggressive according to its clinical behavior. The treatment of choice for this type of pathology ranges from non-surgical modalities to bone resection. Case report: Male patient, 21 years old with an aggressive osteolytic lesion in the anterior wall of the right maxillary sinus, treated with surgical excision and immediate reconstruction with titanium mesh without aesthetic or functional disturbances in the postoperative period. Final considerations: The Central giant cell granuloma may have differents clinical presentations and treatment must take into account the characteristics of the lesion in each patient, in aggressive lesions, surgical management is always indicated... (AU)


Subject(s)
Humans , Female , Adult , Periapical Granuloma , Giant Cells , Maxillary Sinus/surgery
4.
J. appl. oral sci ; 29: e20200568, 2021. tab, graf
Article in English | LILACS, BBO | ID: biblio-1143153

ABSTRACT

Abstract Objective The aim of this study is to evaluate the new bone and connective tissue formation and the biomaterial remaining after maxillary sinus bone augmentation using 5 different bone substitutes. The osteocalcin immunolabeling was performed to demonstrate their calcification and the possibility of receiving dental implants. Methodology 40 patients underwent maxillary sinus bone augmentation and were divided in 5 groups: Group 1 with 8 maxillary sinuses were grafted with autogenous bone graft (AB); Group 2 with 8 maxillary sinuses grafted with bioactive glass (BG); Group 3 with 8 maxillary sinuses grafted with bioactive glass added to autogenous bone graft (BG + AB) 1:1; Group 4 with 8 maxillary sinuses grafted with Bio-Oss (BO) and Group 5 with 8 maxillary sinuses grafted with Bio-Oss added to autogenous bone graft (BO + AB) 1:1. Results In group AB, 37.8% of bone was formed in the pristine bone region, 38.1% in the intermediate and 44.5% in the apical region. In group BG, 43.6% was formed in the pristine bone, 37% in the intermediate and 49.3% in the apical region. In group BG + AB 1:1, 39.0% was formed in the pristine bone region, 34.8% in the intermediate and 36.8% in apical region. In group BO, 33.4% was formed in the pristine bone, 32.5% in the intermediate and 34.3% in the apical region. In group BO + AB 1:1, 32.8% was formed in the pristine bone, 36.1% in intermediate and 27.8% in the apical regions. The immunolabeling for osteocalcin showed an intensive staining for all groups, which could demonstrate the calcification of the bone formed. Conclusion This study showed that the groups evaluated formed a suitable lamellar bone in the maxillary sinus reconstruction after six months of bone healing, thus being indicated to receive dental implants.


Subject(s)
Humans , Osteogenesis , Dental Implants , Bone Transplantation , Bone Substitutes , Sinus Floor Augmentation , Dental Implantation, Endosseous , Maxillary Sinus/surgery , Maxillary Sinus/diagnostic imaging
5.
Rev. Fac. Odontol. (B.Aires) ; 36(83): 49-56, 2021. ilus, tab, graf
Article in Spanish | LILACS | ID: biblio-1343547

ABSTRACT

Objetivo: Evaluar distancia cortical/piso de seno maxilar y ápices de primeros premolares superiores, su asociación con sexo y grupo etario. Se midieron 100 premolares superiores, registrándose la distancia ápices/cortical piso del seno, frecuencia de intrusión apical en seno, relación con sexo y grupo etario. Se utilizó prueba de rangos con signos Wilcoxon y prueba Shapiro-Wilk, con modificaciones. Se estimaró método de Wilson. Se utilizó prueba Chi-cuadrado. Se encontró diferencia significativa (Wilcoxon: p<0,05) en distancia máxima a cortical y no la hubo en distancias mínimas a cortical (Wilcoxon: p=0,41). Hubo distribución heterogénea según clasificación de Kwak (Chi-cuadrado=203,8; gl=4; p<0,05): tipo I más representado (77% IC95; 68% a 84%), tipo V menos frecuente (4%; IC95: 2% a 10%). Hubo asociación signficativa entre tipología y sexo (Chi-cuadrado012,48; gl=4; p<0,05). Ambos sexos tipo I más representado, mujeres tipo II menos representado (3%). Se encontró asociación significativa entre tipología y grupo etario (Chi-cuadrado=42,47; gl=20; p<0,05): todos los grupos, tipo I más representado (AU)


Subject(s)
Humans , Male , Female , Adolescent , Adult , Middle Aged , Aged , Bicuspid , Tooth Apex , Maxillary Sinus , Argentina , Chi-Square Distribution , Cross-Sectional Studies , Statistical Analysis , Age and Sex Distribution , Cone-Beam Computed Tomography
6.
Braz. oral res. (Online) ; 35: e022, 2021. tab, graf
Article in English | LILACS, BBO | ID: biblio-1153612

ABSTRACT

Abstract This study aimed to determine the mean distances between apexes of the maxillary posterior teeth and the maxillary sinus, between apexes of the mandibular posterior teeth and the mandibular canal, and between the root apexes of all teeth and the adjacent cortical plates. A total of 800 cone-beam computed tomography (CBCT) scans (400 maxillary and 400 mandibular) were obtained from patients indicated for several treatments. The proximity between apexes and anatomical structures, and the relationship between apexes and adjacent cortical plates were assessed together with the risk of over-instrumentation. Paired-sample comparisons were performed by using the paired t-test. The means were compared by ANOVA, Kruskal-Wallis and Dwass-Steel-Critchlow-Fligner tests. a) Most of the apexes classified as A (high-risk proximity) were observed in maxillary first and second molars, in mandibular first and second molars, and in second premolars in relation to near anatomical structures. b) A predominance of class A (86.42%) was noticed in the first premolars, between apexes of maxillary teeth and adjacent cortical plates. c) The distance between apexes of mandibular teeth and buccal cortical plates showed a predominance of medium-risk proximity (B) in all the groups, except the first premolars, with the highest risk (82.22%), and the second molars, with low-risk proximity (C) to distal and mesiobuccal apexes (91.77% and 89.62%). CBCT images are important for endodontic diagnosis and treatment, since many teeth have high risk proximity to near anatomical structures and adjacent cortical plates.


Subject(s)
Humans , Maxillary Sinus , Tooth Root/diagnostic imaging , Cerebral Cortex , Cone-Beam Computed Tomography , Molar/diagnostic imaging
7.
Einstein (Säo Paulo) ; 19: eAO6255, 2021. tab, graf
Article in English | LILACS | ID: biblio-1154105

ABSTRACT

ABSTRACT Objective: To analyze computed tomography scans of paranasal sinuses of a series of patients with coronavirus disease 2019, and correlate the findings with the disease. Methods: Computed tomography scans of 95 adult patients who underwent a polymerase chain reaction test for severe acute respiratory syndrome coronavirus 2 were analyzed. Clinical data were obtained from patients' records and telephone calls. Paranasal sinus opacification was graded and compared according to severe acute respiratory syndrome coronavirus 2 positivity. Results: Of the patients 28 (29.5%) tested positive for severe acute respiratory syndrome coronavirus 2 (median age 52 [range 26-95] years) and 67 were negative (median age 50 [range 18-95] years). Mucosal thickening was present in 97.4% of maxillary sinuses, 80% of anterior ethmoid air cells, 75.3% of posterior ethmoid air cells, 74.7% of frontal sinuses, and 66.3% of sphenoid sinuses. Minimal or mild mucosal thickening (score 1)and normally aerated sinuses (score 0) corresponded to 71.4% and 21.3% of all paranasal sinuses, respectively. The mean score of each paranasal sinus among severe acute respiratory syndrome coronavirus 2 positive and negative patients was 0.85±0.27 and 0.87±0.38, respectively (p=0.74). Median paranasal sinus opacification score among severe acute respiratory syndrome coronavirus 2 positive patients was 9 (interquartile range 8-10) compared to 9 (interquartile range 5-10) in negative patients (p=0.89). There was no difference in mean score adjusted for age and sex. Nasal congestion was more frequent in severe acute respiratory syndrome coronavirus 2 positive than negative patients (p=0.05). Conclusion: Severe acute respiratory syndrome coronavirus 2 infection was associated with patient recall of nasal congestion, but showed no correlation with opacification of paranasal sinuses.


RESUMO Objetivo: Analisar imagens de tomografia computadorizada de seios paranasais de pacientes com a doença por coronavírus 2019, e correlacionar os achados com a doença. Métodos: Foram analisadas imagens de tomografia computadorizada de 95 pacientes submetidos a teste de reação em cadeia da polimerase para coronavírus 2 da síndrome respiratória aguda grave. Os dados clínicos foram obtidos por meio dos prontuários dos pacientes e de ligações telefônicas. A opacificação dos seios paranasais foi graduada e comparada entre pacientes positivos e negativos para coronavírus 2 da síndrome respiratória aguda grave. Resultados: Vinte e oito (29,5%) dos pacientes tiveram resultado positivo para coronavírus 2 da síndrome respiratória aguda grave (idade mediana de 52 [26-95] anos) e 67, resultado negativo (idade mediana de 50 [18-95] anos). O espessamento mucoso estava presente em 97,4% dos seios maxilares, 80% das células etmoidais anteriores, 75,3% das células etmoidais posteriores, 74,7% dos seios frontais e em 66,3% dos seios esfenoidais. Mínimo ou discreto espessamento mucoso (pontuação 1) e seios com aeração normal (pontuação 0) corresponderam a 71,4% e 21,3% de todos os seios paranasais, respectivamente. A nota média de cada seio paranasal entre pacientes positivos e negativos para coronavírus 2 da síndrome respiratória aguda grave foi de 0,85±0,27 e 0,87±0,38, respectivamente (p=0,74). A nota mediana de opacificação dos seios paranasais entre pacientes positivos para coronavírus 2 da síndrome respiratória aguda grave foi de 9 (intervalo interquartil de 8 a 10), comparada a 9 (intervalo interquartil de 5 a 10) em pacientes negativos (p=0,89). Não houve diferença na nota média ajustada para idade e sexo. A congestão nasal foi mais frequente em pacientes positivos para coronavírus 2 da síndrome respiratória aguda grave que naqueles com resultados negativos (p=0,05). Conclusão: A infecção pelo coronavírus 2 da síndrome respiratória aguda grave apresentou associação com congestão nasal, mas não mostrou correlação com espessamento mucoso dos seios paranasais.


Subject(s)
Humans , Adolescent , Adult , Aged , Aged, 80 and over , Young Adult , Sphenoid Sinus/diagnostic imaging , Frontal Sinus/diagnostic imaging , COVID-19/diagnostic imaging , Maxillary Sinus/diagnostic imaging , Tomography, X-Ray Computed , Middle Aged
8.
Rev. cient. odontol ; 8(3): e031, sept.-dic. 2020. ilus, tab
Article in Spanish | LILACS, LIPECS | ID: biblio-1253437

ABSTRACT

Objetivo: Determinar las variantes anatómicas más frecuentes del seno maxilar mediante la evaluación de tomografías computarizadas de haz cónico (TCHC) en individuos de una población de Guatemala que acudieron al Centro Radiológico DISA en el periodo 2013-2018. Materiales y Métodos: Estudio descriptivo transversal. Se evaluaron 217 TCHC para un total de 434 senos maxilares, a fin de determinar la frecuencia de las variantes anatómicas: la presencia de neumatización del seno maxilar y su clasificación y tabiques sinusales, asociándolas con sexo y la condición dental del paciente. Las mediciones fueron realizadas por un investigador entrenado y calibrado, utilizando el software Carestream CS 3D. Se utilizó la prueba Chi cuadrado para determinar las asociaciones entre variables (p < 0,05). Resultados: La frecuencia de neumatización del seno maxilar fue del 79,3% y se estableció la clase II como la más prevalente con un 53,5%. La distribución y frecuencia de los tabiques intrasinusales se observó en 136 senos maxilares (31,4%), los tabiques incompletos se presentaron con mayor frecuencia (18,4%), en dirección coronal en un 27,2%, ubicados en la región media del piso del seno maxilar en un 14,50%; la formación de tabiques primarios se presentó en un 13,1% y con presentación única en un 28,4%. Se encontró asociación entre la clase de neumatización y el sexo del paciente, y entre formación de tabiques primarios y condición dental del paciente (p < 0,05). Conclusiones: Las variantes anatómicas más prevalentes en el seno maxilar son la neumatización del piso del seno y la presencia de tabiques sinusales; estas se observaron con mayor frecuencia en pacientes del sexo femenino y con condición parcialmente dentados. (AU)


Objective: To determine the most frequent anatomical variants of the maxillary sinus by evaluation using cone beam computed tomography (CBCT) in a Guatemalan population attending the DISA Radiological Center in the period 2013-2018. Materials and Methods: Descriptive cross-sectional study. 217 CBCT was performed in a total of 434 maxillary sinuses, determining the frequency of anatomical variants, the presence of pneumatization of the maxillary sinus and their classification and sinus septa in association with sex and the dental condition of the patient. Measurements were made by a trained and calibrated researcher, using Carestream CS 3D software. The Chi-square test was used to determine associations among variables (p<0.05). Results: The frequency of pneumatization of the maxillary sinus was 79.2%, with class II being the most prevalent with 53.5%. The distribution and frequency of intrasinusal septa was observed in 136 maxillary sinuses (31.3%). Incomplete septa appeared more frequently (18.4%), being in a coronal direction in 27.1%, and located in the middle region of the maxillary sinus floor in 14.5%. The formation of primary partitions was presented in 13.1% and with a single presentation in 28.4%. An association was found between the class of pneumatization and the sex of the patient and between the formation of primary septa and the dental condition of the patient (p<0.05). Conclusions: The most prevalent anatomical variants in the maxillary sinus are pneumatization of the sinus floor and the presence of sinus septa, which were more frequently observed in female patients with partially dentate conditions. (AU)


Subject(s)
Humans , Cone-Beam Computed Tomography , Maxillary Sinus , Epidemiology, Descriptive , Cross-Sectional Studies , Guatemala
9.
Int. j. morphol ; 38(6): 1760-1766, Dec. 2020. tab, graf
Article in English | LILACS | ID: biblio-1134509

ABSTRACT

SUMMARY: The posterior superior alveolar artery is responsible for the vascularisation of the mucous which covers the posterior wall of the maxillary sinus, pulp and the periodontal tissues of upper molars. The collateral rami of the infraorbital artery irrigate the mucous of the anterior and lateral walls of the maxillary sinus, as well as the pulp and periodontal tissue of the upper anterior teeth and upper premolars. Both these arteries present intraosseous and extraosseous rami which form an anastomosis in the anterior and lateral walls of the maxillary sinus, called the alveolar antral artery (AAA). The aim of this study was to analyse the presence, location and morphometry of the AAA in a Chilean population, considering sex, side and age, using Cone-Beam computed tomography (CBCT). Forty-two CBCT examinations of Chilean adults were evaluated to analyse the presence, location (extraosseous, intraosseous or subperiosteal) and diameter (<1mm, 1-2 mm, 2-3 mm, >3 mm) of the AAA and the distance from the AAA to the amelocemental limit of the upper second premolar (2PM), permanent upper first molar (1M) and permanent upper second molar (2M) by sex and age range. Pearson's chi-squared test, Student's t-test, ANOVA and Pearson's correlation coefficient were applied, using a significance threshold of 5 %. AAA was found in 75 sides (89.3 %), 38 on the right side (90.5 %) and 37 on the left (88.09 %); extraosseous location was most common. More than 80 % of the arteries presented a diameter between 1 and 2 mm, with no important differences between sexes or age ranges. In younger individuals, the artery was located closer to the vestibular amelocemental limit than in older individuals. Carrying out a proper treatment plan which includes imagenological analysis before surgical procedures is essential to avoid possible haemorrhagic events in the region.


RESUMEN: Arteria alveolar superior posterior es responsable de la vascularización de la mucosa que recubre la pared posterior del seno maxilar, la pulpa y el tejido peridontal en el que se insertan los molares superiores. Las ramas colaterales de la arteria infraorbitaria irrigan la mucosa de las paredes anterior y lateral del seno maxilar, así como la pulpa y el periodonto de los dientes anteriores superiores y los premolares superiores. Ambas arterias presentan ramas intraóseas y extraóseas que forman una anastomosis en las paredes anterior y lateral del seno maxilar, denominada arteria alvéolo antral (AAA). El objetivo de este estudio fue analizar la presencia, localización y morfometría del AAA en una población chilena, considerando sexo, lado y edad, mediante tomografía computarizada Cone-Beam (CBCT). Se evaluaron 42 exámenes CBCT de adultos chilenos para analizar la presencia, ubicación (extraósea, intraósea o subperióstica) y diámetro (<1 mm, 1-2 mm, 2-3 mm,> 3 mm) del AAA. y la distancia del AAA al límite amelocemental del segundo premolar superior (2PM), primer molar superior permanente (1M) y segundo molar superior permanente (2M) por sexo y rango de edad. Se aplicaron la prueba de chi-cuadrado de Pearson, la prueba t de Student, ANOVA y el coeficiente de correlación de Pearson, utilizando un umbral de significancia del 5 %. Se encontró AAA en 75 lados (89,3 %), 38 del lado derecho (90,5 %) y 37 del lado izquierdo (88,09 %); la localización extraósea fue la más común. Más del 80 % de las arterias presentaban un diámetro entre 1 y 2 mm, sin diferencias importantes entre sexos ni rangos de edad. En individuos más jóvenes, la arteria se ubicó más cerca del límite amelocemental vestibular que en individuos mayores. La realización de un adecuado plan de tratamiento que incluya análisis imagenológico antes de los procedimientos quirúrgicos es fundamental para evitar posibles eventos hemorrágicos en la región.


Subject(s)
Humans , Male , Female , Adolescent , Adult , Middle Aged , Young Adult , Arteries/anatomy & histology , Arteries/diagnostic imaging , Cone-Beam Computed Tomography , Alveolar Process/blood supply , Alveolar Process/diagnostic imaging , Chile , Cross-Sectional Studies , Retrospective Studies , Maxillary Sinus
10.
Int. j. odontostomatol. (Print) ; 14(4): 586-589, dic. 2020. graf
Article in English | LILACS | ID: biblio-1134543

ABSTRACT

ABSTRACT: Our objective was report an extremely rare case of isolated meningitis and suppurative dacrioadenitis as consequences of odontogenic sinusitis. We describe the diagnostic tools including imaging and culture, as well as surgical treatment and follow-up. Our final diagnosis was odontogenic sinusitis caused by Streptococcus Anginosus complicated by isolated meningitis and lacrimal gland abscess. Urgent surgical treatment to restore the paranasal sinuses and drainage of the lacrimal gland was performed. Culture from purulent material collected from maxillary sinus indicated the targeted therapy. Clinical assessment and imaging obtained 20 days after surgery demonstrated successful results. This case emphasizes the importance of evaluating intracranial complications of rinosinusitis, the need to search for a dental infection when a maxillary sinusitis is encountered, the key role of a thorough diagnostic workup in order to plan a comprehensive and effective surgical treatment, as well as targeted medical therapy.


RESUMEN: En este estudio se informa un caso extremadamente raro de meningitis aislada y dacrioadenitis supurativa, como consecuencia de sinusitis odontogénica. Describimos las herramientas de diagnóstico que incluyen imágenes y cultivo, como también el tratamiento quirúrgico y el seguimiento. El diagnóstico final fue de sinusitis odontogénica causada por estreptococo anginoso complicado por una meningitis aislada y el absceso de la glándula lagrimal. Se realizó un tratamiento quirúrgico de urgencia para restaurar los senos paranasales y drenar la glándula lagrimal. Se determinó el tratamiento de acuerdo a los resultados de cultivo del seno maxilar. La evaluación clínica y las imágenes obtenidas 20 días después de la cirugía demostraron resultados exitosos. Es importante la evaluación de las complicaciones intracraneales de la rinosinusitis además de la necesidad de considerar una infección dental frente a una sinusitis maxilar. Por otra parte, es clave una evaluación exhaustiva de diagnóstico para planificar un tratamiento quirúrgico completo y efectivo, así como el tratamiento médico.


Subject(s)
Humans , Male , Adolescent , Streptococcal Infections , Maxillary Sinusitis/diagnostic imaging , Streptococcus anginosus , Abscess/microbiology , Tomography, X-Ray Computed/methods , Maxillary Sinusitis/surgery , Dacryocystitis/microbiology , Focal Infection, Dental/complications , Focal Infection, Dental/therapy , Maxillary Sinus/surgery , Maxillary Sinus/diagnostic imaging , Meningitis
11.
Rev. cient. odontol ; 8(2): e025-e025, mayo-ago. 2020. tab
Article in Spanish | LILACS, LIPECS | ID: biblio-1119390

ABSTRACT

Objetivo: El posicionamiento de implantes dentales simultáneo a la elevación del seno maxilar en rebordes con reabsorción ósea severa (≤4 mm) es una técnica quirúrgica que disminuye los tiempos operatorios. Sin embargo, es considerada sensible por ser dependiente del operador y, en el caso que no se dé un manejo adecuado, puede presentar complicaciones. En este estudio se realiza una revisión de la literatura sobre la supervivencia de los implantes dentales y las complicaciones intra y posoperatorias en procedimientos de elevación del seno maxilar con la colocación simultánea de implante dental en rebordes con reabsorción ósea severa. Materiales y métodos: Se realizó una búsqueda bibliográfica de la literatura publicada en los últimos 10 años, durante el periodo de mayo y junio del 2019, en las bases de datos Medline­PubMed, EBSCOhost y Scopus. Esta se complementó con una búsqueda manual en revistas especializadas en periodoncia y cirugía oral Q1, posicionadas en el top 5 del 2018 en www.scimagojr.com. Se incluyeron ensayos clínicos y estudios prospectivos y retrospectivos. Se identificó 2562 artículos científicos. Tras el análisis de los títulos, la lectura de los resúmenes y los textos completos, se seleccionaron 6 artículos para el análisis de la técnica quirúrgica y 35 para complementar la información. Conclusiones: La colocación simultánea de implantes dentales a la elevación del seno maxilar es una de las técnicas utilizadas para restituir la función en el maxilar posterior. La complicación intraoperatoria más frecuente es la perforación de la membrana sinusal y la posoperatoria es la infección asociada con perforación de la membrana, o la migración del implante al seno maxilar. La supervivencia promedio del implante observada en los estudios es mayor al 94%. (AU)


Aim: The positioning of dental implants simultaneous to the elevation of the maxillary sinus in ridges with severe bone resorption (≤4mm) is a surgical technique that reduces operative times. However, it is considered sensitive, being dependent on the operator, and in the absence of appropriate handling, complications can occur. This study aimed to provide a review of the literature on the survival of dental implants and intra- and post-operative complications in maxillary sinus lift procedures with the simultaneous placement of a dental implant in ridges with severe bone resorption. Materials and methods: A bibliographic search of the literature published in the last 10 years in the Medline-Pubmed, EBSCO HOST and SCOPUS databases was carried out from May to June 2019. This was complemented with a manual search in journals specialized in Periodontology and Oral Surgery Q1, positioned in the Top 5 of the year 2018 at www.scimagojr.com. Prospective, retrospective and clinical trials were included 2562. A total of 2562 prospective, retrospective and clinical trials were included. After analyzing the titles and reading the abstracts and full texts, 6 articles were selected for analysis of the surgical technique and 35 to complement information. Conclusions: The placement of dental implants simultaneously with maxillary sinus elevation is one of the techniques used to restore function in the posterior maxilla. The most frequent intra-operative complication is perforation of the sinus membrane, and the most common post-operative complication is infection associated with perforation of the membrane, or migration of the implant to the maxillary sinus. The average implant survival reported is greater than 94%. (AU)


Subject(s)
Humans , Postoperative Complications , Dental Implants , Intraoperative Complications , Maxillary Sinus , Prospective Studies , Retrospective Studies , Clinical Trial
13.
Rev. cir. traumatol. buco-maxilo-fac ; 20(1): 34-38, jan.-mar. 2020. ilus
Article in Portuguese | LILACS, BBO | ID: biblio-1253593

ABSTRACT

Introdução: O seio maxilar possui íntima relação com os molares e, por esse motivo, após a extração desses elementos, pode ocorrer comunicação entre as cavidades bucais e sinusais. Quando o canal que possibilita a comunicação entre as cavidades é revestido por epitélio, chamamos de fístula buço-sinusal. O diagnóstico se dá por meio dos aspectos clínicos e radiográficos. O tratamento deve ser imediato, para que ocorra fechamento espontâneo. O objetivo deste trabalho é discutir um fechamento de Fístula Buco-Sinusal com tratamento expectante do seio maxilar e manejo cirúrgico associado à sinusite. Relato de caso: Homem, 33 anos, compareceu à FOP-UPE relatando incômodo ao ingerir alimentos e história de exodontia traumática do elemento 17 há 1 ano. Ao exame intra-oral, observou-se a presença da fístula na região da exodontia e, ao exame tomográfico, foi observada radiopacidade em seio maxilar, sugerindo fenestração óssea e sinusite, respectivamente. Iniciou-se antibioticoterapia e descongestionante nasal para sinusite e posterior cirurgia de fechamento da fístula buco-sinusal com uso da bola de Bichat. O manejo adequado é essencial no sucesso terapêutico da fístula. Além disso, a avaliação clínica e a radiográfica auxiliam na sua prevenção. Considerações Finais: Nosso caso concordou com a literatura, demonstrando que o uso da bola de Bichat é um método simples, conveniente e confiável para a reconstrução de defeitos intraorais de pequeno a médio porte... (AU)


Introduction: The maxillary sinus has a relation with the molars, for this reason, after extraction of these teeth can occur communication between buccal and sinus cavities. When the channel that allows the communication between the cavities is coated epithelium, we diagnose oroantral fistula. The diagnosis is made through clinical and radiographic aspects. Treatment should be immediate so that spontaneous closure occurs. The objective of this study is to discuss a closure of Buco-Sinus Fistula with expectant treatment of the maxillary sinus and surgical management associated with sinusitis. Case report: Man, 33 years old, attended FOP-UPE reporting discomfort when eating food and history of traumatic exodontia of element 17, 1 year ago. The intra-oral examination revealed the presence of the fistula in the region of the exodontia and at the tomographic examination radiopacity was observed in the maxillary sinus, suggesting bone fenestration and sinusitis, respectively. Antibiotic therapy and nasal decongestant for sinusitis and subsequent closure of the bucosinus fistula with Buccal Fat were started. Adequate management is essential for the therapeutic success of the fistula. In addition, clinical and radiographic evaluation helps to prevent. Final considerations: Our case corroborates the literature, showing that the use of the bichat ball is a simple, convenient and reliable method for the reconstruction of small to medium sized intraoral defects... (AU)


Subject(s)
Humans , Male , Adult , Surgery, Oral , Maxillary Sinusitis , Oroantral Fistula , Antibiotic Prophylaxis , Diagnosis, Oral , Maxillary Sinus , Anti-Bacterial Agents , Sinusitis , Therapeutics , Bone and Bones , Eating
14.
J. oral res. (Impresa) ; 9(3): 171-179, jun. 30, 2020. ilus, graf, tab
Article in English | LILACS | ID: biblio-1293168

ABSTRACT

This study sought to assess the internal anatomy of the maxillary sinuses and their septa using cone-beam computed tomography (CBCT) in an Iranian population. Materials and Methods: Resorption of alveolar bone decreases the height of the maxillary alveolar ridge. This height reduction may be so severe that it warrants ridge augmentation by a sinus lift. Manipulation of the maxillary sinuses, as in sinus lift surgery, requires adequate knowledge about the sinus anatomy.Results: Maxillary sinus septum, as an anatomical variation, may complicate the surgical procedures and increase the risk of complications such as sinus membrane perforation. In this retrospective study, 366 sinuses, 190 from females and 176 from males, aged between 10 and 65 years old presenting to the Oral and Maxillofacial Radiology Department of School of Dentistry at Hamadan University of Medical Sciences were evaluated by two oral radiologists. The extension of the maxillary sinuses, presence of septa, number of septa and their location were determined. Data were analyzed using the chi square test (level of significance p≤0.001). The coefficient of agreement between the two oral radiologists was calculated based on Cohen kappa. Septa were present in 40.5% of the maxillary sinuses, out of which, 31.6% had one, 7.9% had two and 1% had three or more septa; 38% of the septa were horizontal while 62% had an oblique orientation. In total, 184 septa were found in 183 patients; out of which, 91 septa were 2mm to 5mm long while 93 septa were longer than 5mm. Conclusions: Comprehensive knowledge about the three-dimensional internal anatomy of the maxillary sinuses acquired by CBCT priorto surgical procedures can greatly help to prevent postoperative complications.


Este estudio buscó evaluar la anatomía interna de los senos maxilares y sus septos mediante tomografía computarizada de haz cónico (CBCT) en una población Iraní. Materiales y Métodos: . La resorción del hueso alveolar disminuye la altura de la cresta alveolar maxilar. Esta reducción de altura puede ser tan severa que justifique el aumento de la cresta mediante una elevación de seno. La manipulación de los senos maxilares, como en la cirugía de elevación del seno, requiere un conocimiento adecuado sobre la anatomía del seno. Resultado: El tabique del seno maxilar, como una variación anatómica, puede complicar los procedimientos quirúrgicos y aumentar el riesgo de complicaciones como la perforación de la membrana sinusal. En este estudio retrospectivo, dos radiólogos orales evaluaron 366 senos, 190 de mujeres y 176 de hombres, con edades comprendidas entre 10 y 65 años que se presentaron en el Departamento de Radiología Oral y Maxilofacial de la Facultad de Odontología de Hamadan University of Medical Sciences. Se determinó la extensión de los senos maxilares, la presencia de septos, el número de septos y su ubicación. Los datos se analizaron mediante la prueba de chi cuadrado (nivel de significación p?0.001). El coeficiente de concordancia entre los dos radiólogos orales se calculó en base a Cohen kappa. Los septos estaban presentes en el 40.5% de los senos maxilares, de los cuales, el 31.6% tenía uno, el 7.9% tenía dos y el 1% tenía tres o más septos; El 38% de los septos eran horizontales, mientras que el 62% tenía una orientación oblicua. En total, se encontraron 184 septos en 183 pacientes; de los cuales, 91 septos tenían de 2mm a 5mm de largo, mientras que 93 septos tenían más de 5mm. Conclusion: El conocimiento exhaustivo sobre la anatomía interna tridimensional de los senos maxilares adquiridos por CBCT antes de los procedimientos quirúrgicos puede ayudar en gran medida a prevenir complicaciones postoperatorias.


Subject(s)
Humans , Male , Female , Child , Adolescent , Adult , Middle Aged , Aged , Young Adult , Paranasal Sinus Diseases/diagnostic imaging , Maxillary Sinus/anatomy & histology , Maxillary Sinus/diagnostic imaging , Nasal Septum/anatomy & histology , Retrospective Studies , Cone-Beam Computed Tomography , Alveolar Ridge Augmentation , Anatomic Variation , Iran/epidemiology
15.
Int. j. odontostomatol. (Print) ; 14(2): 150-153, June 2020. graf
Article in Spanish | LILACS | ID: biblio-1090667

ABSTRACT

El seno maxilar (SM) es una cavidad par presente en el hueso maxilar, que puede presentar diversas alteraciones o lesiones patológicas factibles de ser pesquisadas mediante estudios imagenológicos. En este sentido, la opacidad, el ocupamiento y/o engrosamiento de las mucosas son los signos orientadores para el diagnóstico de patologías en estas estructuras, las que pueden ir desde sinusitis, hasta antrolitos, pasando por hipoplasias, pseudoquistes u osteomas. En el siguiente reporte presentamos el caso de una mujer de 75 años de edad en la cual mediante examinación radiográfica de rutina se observa un cuerpo extraño en el SM derecho en relación a diente 1.6. De acuerdo a esto, se solicitó una tomografía computarizada cone-beam (CBCT) para evaluar posibles implicancias con tratamiento dental rehabilitador. Al examen se observan dos estructuras de alta densidad (densidad metálica), redondeadas, una al lado de la otra, en contacto inmediato a la cortical sinusal sin comprometerla. También se observa una cortical sinusal conservada en todo su recorrido y discreto engrosamiento mucoso en relación a dichas estructuras. En consideración con los antecedentes de la paciente, se opta por un manejo conservador del hallazgo mediante controles periódicos. Se propone la hipótesis de la formación de un antrolito de origen exógeno, que se corresponde con el historial de tratamiento endodóntico en la zona. El diagnóstico diferencial de los hallazgos radiográficos encontrados es fundamental para establecer los lineamientos terapéuticos de nuestros pacientes, por ello es importante contar con personal clínico capacitado para la interpretación de las imágenes.


The maxillary sinus (SM) is an even cavity present in the maxillary bone, which may present a number of pathological alterations or lesions that can be investigated through imaging analysis. In this sense, opacity, location and / or thickening of the mucous membranes are guides for the diagnosis of pathologies in these structures. These can range from sinusitis, to antrolites, to hypoplasias, pseudocysts or osteomas. In this study the case of a 75-year-old woman is presented. During routine radiographic examination, a foreign body was observed in the right MS in relation to tooth 1.6. A cone-beam computed tomography (CBCT) was requested to evaluate possible rehabilitative dental treatment. Upon examination, two highdensity rounded structures (metal density) adjacent to each other were noted. The structures were in direct contact with the sinus cortex without compromising it. Furthermore in relation to the above structures, scant cortical sinus was observed throughout its course, as well as slight mucous thickening. Considering the patient's background, it was determined to use conservative treatment through periodic controls. Hypothesis of an exogenous mass is proposed, corresponding to the history of endodontic treatment in the area. In view of the differential diagnosis of radiographic findings found, it is essential to implement therapeutic guidelines for patients and have trained clinical staff available to interpret the images.


Subject(s)
Humans , Female , Aged , Foreign Bodies/diagnostic imaging , Maxillary Sinus/diagnostic imaging , Radiography, Panoramic , Incidental Findings , Cone-Beam Computed Tomography , Conservative Treatment
16.
Odovtos (En línea) ; 22(1): 61-70, ene.-abr. 2020. graf
Article in Spanish | LILACS, BBO | ID: biblio-1091506

ABSTRACT

RESUMEN La elevación de piso de seno maxilar ha sido sumamente documentada en implantología como una técnica segura y predecible en el procedimiento de ganancia vertical ósea, en el maxilar posterior atrófico. Sin embargo, conjuntamente se han reportado complicaciones en este procedimiento, las cuales podrían poner en peligro los resultados de la regeneración, y por consiguiente la colocación del implante. El propósito de esta revisión de literatura es exponer y analizar diferentes complicaciones que pueden presentarse en la elevación de piso de seno maxilar.


ABSTRACT Maxillary sinus floor elevation has been extensively documented as a safe and predictable procedure for gaining vertical bone height in the atrophic posterior maxilla. Even though, complications have been reported, which can potentially jeopardize the outcome of the regeneration and implant therapy. Therefore, the purpose of this literature review is to present, debate and analyze the different complications that can occur during a sinus floor elevation.


Subject(s)
Dental Implants/adverse effects , Sinus Floor Augmentation/adverse effects , Maxillary Sinus/surgery , Maxillary Nerve/injuries , Nasal Mucosa/injuries
17.
Rev. ADM ; 77(2): 108-116, mar.-abr. 2020. ilus
Article in Spanish | LILACS | ID: biblio-1102217

ABSTRACT

La frecuencia de las cirugías relacionadas con implantes dentales que involucran procedimientos de aumento de tejido blando y hueso han aumentado significativamente. Los sustitutos óseos derivados de bovinos han sido, por mucho, los xenoinjertos más utilizados en odontología. Aunque la literatura está repleta de estudios clínicos a favor de los materiales de injerto derivados de bovinos, los estudios que reportan los riesgos y las complicaciones clínicas son escasos. La impresión clínica y la preocupación por la seguridad del paciente llevaron al informe que hemos proporcionado. El objetivo de esta presentación de una serie de casos es crear conciencia sobre los riesgos a largo plazo y las complicaciones clínicas tardías de los materiales de injerto derivados de bovinos. Los pacientes fueron referidos a un consultorio privado debido a complicaciones asociadas con los procedimientos de injerto óseo. Reportamos los datos demográficos, hallazgos médicos y dentales significativos. Las complicaciones incluyeron: sinusitis y patologías del hueso maxilar, desplazamiento de los materiales del injerto, falla del implante, reacción de cuerpo extraño, encapsulación del material, inflamación crónica, fenestraciones de tejidos blandos y quistes asociados. Los materiales de injerto derivados de bovino no fueron biodegradables. La preocupación de los autores es que la morbilidad del paciente puede no reducirse con los xenoinjertos, debido a los riesgos inherentes y a las complicaciones asociadas. La resolución de las lesiones y los síntomas asociados se logró después de la eliminación/ remoción de los materiales del injerto óseo. La extracción quirúrgica de los materiales de xenoinjerto puede requerir habilidades clínicas avanzadas, debido a las diferentes configuraciones que los cirujanos pueden encontrar en las partículas no resorbidas y migradas. Los médicos que buscan proporcionar resultados funcionales y estéticos deben ser conscientes de las complicaciones de los materiales de injerto derivados de bovinos. La seguridad a largo plazo de los xenoinjertos y su posible asociación con la transmisión de enfermedades son preocupaciones válidas (AU)


The frequency of dental implant related surgeries that involve soft and bone augmentation procedures has increased significantly. Bovinederived substitutes have been by far the most commonly used xenografts in dentistry. Albeit literature is replete with clinical studies in favor of bovine-derived graft materials, bibliographical data reporting on risks and clinical complications is scarce. Clinical impression and concern for patients' safety led to the report we have provided. The aim of the present case series was to raise awareness on the long-term risks and late clinical complications of bovine-derived graft materials. Patients were referred to a private practice due to bone augmentation complications. Demographics, significant medical and dental findings are reported. The present report was conceived with the safety of patients in mind. Complications included sinus and maxillary bone pathoses, displacement of the graft materials, oro-antral and oro-nasal communications, paresthesia, implant failure, foreign body reactions, encapsulation, chronic inflammation, soft tissue fenestrations and associated cyst. Bovine-derived graft materials were not biodegradable. Resolution of the associated lesions and symptoms was achieved after the removal of the bone graft materials. Clinicians seeking to provide functional and esthetic outcomes should be aware of the complications of the bovine-derived graft materials. The long-term safety of xenografts and their potential association with disease are valid concerns (AU)


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Aged , Aged, 80 and over , Postoperative Complications , Cattle , Risk Factors , Bone Transplantation , Bone Substitutes , Dental Implantation, Endosseous , Dental Restoration Failure , Oral Surgical Procedures , Maxillary Sinus/pathology
18.
Rev. Odontol. Araçatuba (Impr.) ; 41(1): 24-29, jan.-abr. 2020. ilus
Article in Portuguese | LILACS, BBO | ID: biblio-1102366

ABSTRACT

O levantamento de seio maxilar é realizado como forma de obtenção de volume ósseo adequado para a instalação de implantes dentários, por vezes imediatos, em região posterior de maxila. A perfuração da membrana sinusal é um dos acidentes mais comuns associados a este procedimento. Objetivo: Relatar o uso da Fibrina Rica em Plaquetas ­ PRF como uma técnica simples e de baixo custo, que permite a obtenção de coágulos de fibrina e membranas enriquecidas com plaquetas, simulando o processo fisiológico de reparo tecidual, podendo servir como único material de enxertia na elevação sinusal, além de proporcionar o reparo de uma membrana eventualmente perfurada durante o ato cirúrgico. Relato de Caso: Paciente do gênero feminino, faioderma, 57 anos de idade, que por meio de tomografia computadorizada apresentava áreas de pneumatização em região 14 e região 15, exigindo elevação sinusal previamente à instalação de implantes. A perfuração da membrana foi observada durante o descolamento da mesma. O pós-operatório sob exame clínico regular ocorreu sem complicações. Após um período de cicatrização de quatro meses, os implantes foram reabertos para a confecção das coroas. A avaliação da tomografia cone beam pós-cirúrgica comparada à inicial demonstrou que o osso peri-implantar era estável e compacto ao redor dos implantes. Conclusão: Os achados deste relato de caso sugerem que a membrana PRF pode ser uma consideração viável para o reparo da membrana do seio perfurada(AU)


The maxillary sinus lift is performed as a way to obtain adequate bone volume for the installation of dental implants, sometimes immediate, in posterior maxilla. Sinus membrane perforation is one of the most common accidents associated with this procedure. Objective: To report the use of Plateletrich Fibrin ­ PRF as a simple and low cost technique, which allows the allows to obtain fibrin clots and membranes enriched with platelets, simulating the physiological process of tissue repair and can serve as the only grafting material for sinus elevation, besides providing repair of a membrane that may have been perforated during the surgical procedure. Case Report: Female patient, faioderm, 57 years old who, through imaging examinations, had areas of pneumatization in region 14 and region 15, requiring sinusal elevation prior to implant installation. The perforation of the membrane was observed during its detachment. The postoperative period under regular clinical examination occurred without complications. After a healing period of four months, the implants were reopened to make the crowns. The evaluation of the postoperative cone beam tomography compared to the initial one demonstrated that the periimplant bone was stable and compact around the implants. Conclusion: The findings of this case report suggest that the PRF membrane may be a viable consideration for the repair of perforated sinus membrane(AU)


Subject(s)
Dental Implants , Sinus Floor Augmentation , Platelet-Rich Fibrin , Maxillary Sinus
19.
Rev. ADM ; 77(1): 6-10, ene.-feb. 2020. ilus, tab, graf
Article in Spanish | LILACS | ID: biblio-1087675

ABSTRACT

Objetivo: Evaluar la eficacia de la radiografía panorámica para establecer la relación de los terceros molares superiores y la cortical inferior del seno maxilar, en comparación con la tomografía computarizada de haz cónico (CBCT). Material y métodos: El trabajo incluyó 72 pacientes, se estudiaron 34 terceros molares superiores retenidos izquierdos y 38 derechos. Se realizaron mediciones con el programa para establecer la distancia entre la cortical inferior del seno maxilar y el ápice del tercer molar superior a partir de la imagen de la radiografía panorámica en lo que se estableció como parámetros: «a distancia, en contacto y dentro del piso de seno maxilar¼. Luego, con los cortes oblicuos o paraaxiales de la tomografía computarizada (CBCT) se observó la verdadera ubicación en el plano bucopalatino. Resultados: Del total de los terceros molares superiores 34 fueron izquierdas (47.22%) y 38 derechas (52.78%). En la Rx. Panorámica, 18 casos (25%) se encontraron a distancia al seno maxilar, 12 en contacto (16.7%) y 42 por dentro (58.3%) del seno maxilar. En la tomografía se observaron 20 casos (27.8%) a distancia del conducto, 16 (22.2%) en contacto y 36 (50%) por dentro del seno maxilar. Se observaron diferencias estadísticamente significativas (p < 0.05) entre la Rx. panorámica y la tomografía (CBCT) de los terceros molares que se hallan por dentro del seno maxilar. Conclusión: A partir de los resultados obtenidos, podemos establecer que la radiografía panorámica no permite conocer la verdadera relación entre la cortical inferior del seno maxilar y los terceros molares superiores (AU)


Objective: To evaluate the effectiveness of panoramic radiography to establish the relationship of the upper third molars and the inferior cortical of the maxillary sinus, in comparison with the Cone Beam Computed Tomography (CBCT). Material and methods: The work included 72 patients, 34 upper left maxillary molars and 38 rights were studied. Measurements were made with the program to establish the distance between the lower cortex of the maxillary sinus and the apex of the upper third molar from the image of the panoramic radiograph in what was established as parameters: «at a distance, in contact and inside the floor of maxillary sinus¼. Then with the oblique or paraaxial slices of the computed tomography (CBCT) the true location in the bucco-palatal plane was observed. Results: Of the total upper third molars, 34 were left (47.22%) and 38 right (52.78%). In the panoramic X-ray 18 cases (25%) were found at distance to the maxillary sinus, 12 in contact (16.7%) and 42 inside (58.3%) of the maxillary sinus. The tomography showed 20 cases (27.8%) at a distance from the canal, 16 (22.2%) in contact and 36 (50%) inside the maxillary sinus. Statistically significant differences were observed (p < 0.05) between the Rx. panoramic and tomography (CBCT) of the third molars that are inside the maxillary sinus. Conclusion: From the results obtained, we can establish that the panoramic radiograph does not allow knowing the true relationship between the inferior cortical of the maxillary sinus and the upper third molars (AU)


Subject(s)
Humans , Male , Female , Adolescent , Adult , Middle Aged , Tooth, Impacted/diagnostic imaging , Radiography, Panoramic , Cone-Beam Computed Tomography , Molar, Third/diagnostic imaging , Argentina , Epidemiology, Descriptive , Retrospective Studies , Data Interpretation, Statistical , Maxilla , Maxillary Sinus/anatomy & histology
20.
Article in Korean | WPRIM | ID: wpr-786595

ABSTRACT

Maxillectomy is performed to remove the tumor in the palate, maxillary sinus, buccal mucosa or nasal cavity. The resection range depends on the size and the extent of the tumor and it affects speech production or cause nasal regurgitation during feeding. Obturator can occlude an opening such as an oro-nasal fistula and protect the defect area. Successful reconstrucion of the patient's oral cavity who have gone over the maxillectomy is a difficult task. The condition and number of teeth, the remaining support area, and the extent of the defect area have a great influence on manufacturing the obturator. If these factors are disadvantageous, the prognosis of the prosthesis is uncertain. The final obturator must have a sufficient retention in the patient's oral cavity and must not irritate the surrounding tissue and support area where the resection was performed.In this case, a 55 year old female went through the maxillectomy and the only 3 teeth remained. And the retention of the maxillary prosthesis seems to be poor. So that, we fabricated the closed hollow obturator which has reduced weight compared to the conventional obturator. Consequently the closed hollow obturator can give better sealing and the adaptation.


Subject(s)
Female , Fistula , Humans , Maxillary Sinus , Maxillofacial Prosthesis , Mouth , Mouth Mucosa , Nasal Cavity , Palate , Palate, Hard , Prognosis , Prostheses and Implants , Tooth
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