Influência da qualidade das próteses totais na prevalência de disfunção temporomandibular / Influence of quality of total prostheses on the prevalence of temporomandibular disorder

Introduction Temporomandibular disorder (TMD) involves the mastication and temporomandibular articulation muscles. Completely toothless patients with prostheses should be thoroughly assessed since edentulism causes damage that can lead to TMD onset. Objective This study aims to assess the effect of the technical quality of total prostheses (TPs) on TMD occurrence in patients with bimaxillary TPs. Material and method 154 patients responded to a questionnaire to obtain personal data, information regarding prostheses, anamnestic index for TMD, and the prosthesis quality index. Result Of the 154 patients examined, 64 (41.6%) had no TMD, 61 (39.6%) had mild TMD, 23 (14.9%) moderate, and only 6 (3.9%) showed severe TMD. As for the quality of total prosthesis, 78 (50.6%) completely toothless individuals had satisfactory TPs while 76 (49.4) presented unsatisfactory prostheses. Regarding the time using total prosthesis, around 50% of individuals with up to 10 years use presented some degree of TMD and 70% of individuals with over 10 years presented TMD. Conclusion Considering the methodology used and the population studied, we conclude that the quality of the TPs did not influence the incidence of TMD.

Introdução A disfunção temporomandibular (DTM) é uma desordem que envolve os músculos da mastigação e da articulação temporomandibular. Pacientes desdentados totais e que utilizam protéses requerem uma avaliação criteriosa, já que o edentulismo leva a prejuízos que podem contribuir para o aparecimento de DTM. Objetivo O objetivo deste presente estudo foi avaliar o efeito da qualidade técnica das próteses totais (PTs) na incidência de DTM em pacientes portadores de PTs bi-maxilares. Material e método Foi aplicado um questionário a 154 pacientes contendo os dados pessoais, o histórico das próteses, o índice anamnésico para DTM e o índice de qualidade de prótese. Resultado Dos 154 pacientes examinados, 64 (41,6%) estavam livres de DTM, 61 (39,6%) possuíam DTM leve, 23 (14,9%), moderada e apenas 6 (3,9%) mostravam DTM severa. Quanto à qualidade da prótese total, 78 (50,6%) desdentados totais portavam PTs satisfatórias e 76 (49,4) estavam com próteses insatisfatórias. Quanto ao tempo de uso da prótese total, cerca de 50% dos indivíduos com até 10 anos de uso apresentaram algum grau de DTM e 70% dos indivíduos com mais de 10 anos acusaram a presença de DTM. Conclusão Considerando-se a metodologia empregada e a população estudada, pôde-se concluir que a qualidade das PTs não influenciou na presença de DTM.

Prevalencia de disfunción de la articulación temporomandibular en médicos residentes del Hospital de Especialidades Centro Médico Nacional «La Raza¼ / Temporomandibular joint disorder prevalence in resident physicians at the Specialties Hospital «La Raza¼ National Medical Center

Objetivos Determinar la prevalencia de disfunción de la articulación temporomandibular en médicos residentes del Hospital de Especialidades. Material y métodos Estudio observacional, prospectivo, transversal. Se evaluaron a 50 residentes de un total de 324 incluyendo especialidades no quirúrgicas y quirúrgicas, de los diferentes años de residencia. Fueron excluidos los residentes que se encontraran en tratamiento de ortodoncia o hubieran estado sometidos previamente. Se aplicó el índice de Helkimo con fines diagnósticos para disfunción temporomandibular, posteriormente se realizó una exploración física de la articulación temporomandibular y de los músculos de la masticación. Resultados Para la evaluación de resultados se utilizó estadística descriptiva y chi-cuadrada (χ2). Utilizando el paquete estadístico SPSS 12. La prevalencia de disfunción temporomandibular en residentes fue del 66% de la población estudiada. Tuvimos un resultado significativo en cuanto al género siendo mayor en mujeres con una p ≤ .013. En los primeros años de residencia se observó mayor incidencia, así como en las especialidades no quirúrgicas, que en las quirúrgicas. Conclusiones La prevalencia de la disfunción temporomandibular en residentes es igual a la reportada a nivel mundial en población general. Al igual, encontramos mayor prevalencia en mujeres. Sería importante realizar otro estudio para medir estrés en médicos residentes y la relación con disfunción temporomandibular.

Aim To determine prevalence of temporomandibular joint disorder in resident physicians at the Specialty Hospital. Material and methods Cross sectioned prospective, observational study. Out of a total of 324, 50 residents were assessed, including non surgical and surgical specialties of different residency years. Residents under orthodontic treatment or having been subjected to previous orthodontic treatment were excluded. Helkimo index was applied for temporomandibular joint diagnostic purposes A physical exploration of the temporomandibular joint and masticatory muscles was later conducted. Results For result evaluation, descriptive statistics and chi-square (χ2) test were used. Statistical package SPSS 12 was used. Prevalence of temporomandibular disorder in residents was 66% of studied population. Significant result was obtained with respect to gender; it being higher in females with p ≤ .013. Greater incidence was observed in the first residency years, as well as in non surgical specialties when compared to surgical ones. Conclusions Prevalence of residents' temporomandibular disorder was similar to that reported worldwide in general population. The present study equally found greater prevalence in females. It would be significant to conduct another study to measure stress in resident physicians and relationship of stress with temporomandibular disorders.