Consecuencias de la artritis reumatoide en la articulación temporomandibular y su manejo odontológico / Consequences of rheumatoid arthritis in the temporomandibular joint and its dental management

Introducción: la artritis reumatoide es parte del grupo de las enfermedades autoinmunes con incidencia considerable sobre la población. Se caracteriza por la afección de las articulaciones del cuerpo que la padece; en mayor frecuencia se encuentra afectada la articulación temporomandibular por el complejo articular que ésta presenta; entre los signos y síntomas que comúnmente podemos encontrar en pacientes con este tipo de enfermedad son los chasquidos o ruidos articulares, dolor orofacial, pérdida o imposibilidad del movimiento de la mandíbula y cambios anatómicos localizados en el área de la articulación temporomandibular. Objetivo: describir las consecuencias que desencadena la artritis reumatoide sobre la articulación temporomandibular y cómo es para el odontólogo el manejo de estos pacientes en consulta, evaluar los tratamientos para cada caso sobre un correcto diagnóstico. Material y métodos: se realizó una revisión bibliográfica de artículos recientes sobre el tema, utilizando buscadores como SciELO, Elsevier y PubMed, siendo 30 las fuentes seleccionadas con idiomas en inglés y español. Resultados: esta enfermedad autoinmune se caracteriza por afectar múltiples articulaciones del cuerpo humano simétrica y bilateralmente incluyendo la articulación temporomandibular (ATM), lo cual conlleva al riesgo de desarrollar trastornos temporomandibulares (TTM). Es importante conocer los métodos para realizar un correcto diagnóstico oportuno de la ATM del paciente con artritis reumatoide (AR) con la finalidad de ofrecer un tratamiento conservador. Conclusión: los trastornos temporomandibulares desencadenantes de la artritis reumatoide son afecciones que se deben considerar para el buen manejo del paciente con este padecimiento, comprender y respaldar un diagnóstico clínico es de vital importancia para dar al paciente un tratamiento adecuado dependiendo el grado de complejidad en la que cada individuo se encuentra; conocer el manejo adecuado y encaminar al paciente a una mejor calidad de vida es clave en la consulta odontológica del día a día (AU)

Introduction: rheumatoid arthritis is part of the group of autoimmune diseases with considerable incidence in the population. It is characterized by the affection of the joints of the body that suffers from it; most frequently the temporomandibular joint is affected due to the articular complex that it presents; among the signs and symptoms that we can commonly find in patients with this type of disease are joint clicks or noises, orofacial pain, loss or impossibility of jaw movement and anatomical changes located in the temporomandibular joint area. Objective: to describe the consequences that rheumatoid arthritis triggers on the temporomandibular joint and how it is for the dentist to manage these patients in consultation, to evaluate the treatments for each case on a correct diagnosis. Material and methods: a bibliographic review of recent articles on the subject was carried out, using search engines such as SciELO, Elsevier and PubMed, with 30 sources selected in English and Spanish. Results: this autoimmune disease is characterized by affecting multiple joints of the human body symmetrical and bilaterally including the TMJ which leads to the risk of developing TMD. It is important to know the methods to make a correct diagnosis of the TMJ of the patient with RA in order to offer a conservative treatment. Conclusions: the temporomandibular disorders that trigger rheumatoid arthritis are conditions that should be considered for the proper management of the patient with this condition, understanding and supporting a clinical diagnosis is of vital importance to give the patient an adequate treatment depending on the degree of complexity in which each individual is; knowing the proper management and directing the patient to a better quality of life is key in the day-to-day dental practice (AU)

Relación entre contactos mediotrusivos con la articulación temporomandibular y la oclusión / Relationship between mediotrusive contacs, the temporomandibular joint and occlusion

Los contactos mediotrusivos son aquellos contactos oclusales que se encuentran entre las vertientes in- ternas de las cúspides linguales maxilares y las inter- nas de las cúspides bucales mandibulares del lado de no trabajo durante los movimientos de lateralidad. Estos contactos mediotrusivos podría desencadenar trastornos temporomandibulares, afectando la oclu- sión y la articulación temporomandibular. El objetivo de este estudio es analizar las caracterís- ticas y la relación entre los contactos mediotrusivos con la articulación temporomandibular y la oclusión en pacientes que consultan al Servicio de Oclusión y ATM del Hospital Odontológico de la Facultad de Odontología de la Universidad Nacional del Nordeste (AU)

Mediotrusive contacts are those occlusal contacts that are found between the internal slopes of the maxillary lingual cusps and the internal slopes of the mandibular buccal cusps on the non-working side during laterality movements. These mediotrusive contacts could trigger temporomandibular disorders affecting occlusion and temporomandibular joint. The objective of this study was to analyze the characteristics and relationship of mediotrusive contacts with occlusion and the temporomandibular joint, in patients who consult the Occlusion and TMJ Service of the Dental Hospital of the Faculty of Dentistry of the National University of the Northeast (AU)

Alterações posturais associadas a distúrbios respiratórios e sua correlação com as desordens temporomandibulares: uma revisão de literatura / Postural changes associated with respiratory disorders and their correlation with temporomandibular disorders: a literature review

Objetivo: a presente revisão almeja fornecer à prática clínico-odontológica e ao meio científico uma compreensão atualizada acerca da correlação entre as alterações posturais geradas pela presença de distúrbios respiratórios e as desordens temporomandibulares (DTMs). Revisão de literatura: foi realizada uma busca entre o período de 2005 a 2021 nas seguintes bases de dados: Medline (via PubMed), Portal de Periódicos Capes e Scopus, utilizando-se dos termos "temporomandibular joint; temporomandibular disorders; posture control; postural control; breathing". Como resultado, foram encontrados 4.384 documentos, que foram analisados por títulos, resumos, texto completo e critérios de elegibilidade, até se chegar ao total de 5 estudos a serem incluídos nesta revisão. Considerações finais: os principais fatores observados foram a associação das DTMs com condições como padrão de respiração do tipo bucal, postura anterior da cabeça, hiperatividade de músculos acessórios da respiração, rotação posterior da mandíbula e apneia obstrutiva do sono. Os estudos ressaltaram a necessidade da abordagem completa desses pacientes, visto que os papéis dos distúrbios respiratórios e das alterações posturais podem representar desafios no diagnóstico e no tratamento das DTMs.(AU)

Objective: this review aims to provide to the clinical dental practice and the scientific community an updated understanding of the correlation between postural changes generated by the presence of respiratory disorders and temporomandibular joint disorders (TMD). Literature review: a search was carried out covering the period from 2005 to 2021 in the following databases: Medline (via PubMed), Portal de Periódicos Capes and Scopus using the terms temporomandibular joint; temporomandibular disorders; posture control; postural control; breathing. As a result, 4,384 documents were obtained and shortlisted by title, abstracts, full text and eligibility criteria, resulting in the five studies included in this review. Final considerations: the main factors observed were the association of TMD with conditions as mouth breathing, anterior head posture, hyperactivity of accessory breathing muscles, posterior rotation of the jaw and obstructive sleep apnea. The studies underscored the need for a complete approach to these patients, given that the role of respiratory disorders and postural changes may represent a challenge in the diagnosis and treatment of TMD.(AU)

Análisis de las creencias limitantes a través del acompañamiento en Bioneuroemoción(R) de individuos con diagnóstico de bruxismo / Analysis of limiting beliefs through the accompainment in Bioneuroemotion(R) in individuals with a diagnosis of bruxism

El propósito de este trabajo cualtitativo fue aplicar el método de Bioneuroemoción en individuos que, estando en tratamiento por bruxismo, continuaban con dolor y sintomatología asociada. El análisis de las creencias limitantes en común de los individuos, las resonancias familiares y la emoción primaria desencadenada, permitieron obtener desde dónde percibían dichos individuos las situaciones de mayor estrés. Para ello, se consideró un diseño muestral centrado en un grupo de cinco pacientes que concurrían al Servicio de ATM (Articulación Temporomandibular) de un hospital odontológico de la Ciudad de Buenos Aires, donde estaban siendo tratados por bruxismo con placas miorrelajantes (AU)

Morfología y Fisiopatología del Fibrocartílago de la ATM. Revisión sistemática / Morphology and Pathophysiology of the TMJ Fibrocartilage. Systemic review

RESUMEN: El objetivo: del presente estudio fue efectuar una revisión actualizada de la morfología, fisiopatología y aspectos moleculares de la capa fibrocartilaginosa de las ATM en humanos. Método: se realizó búsqueda electrónica y manual con los términos MeSH "TMJ" y "fibrocartilage", sin límite de fecha o idioma. Los desenlaces definidos fueron: morfología del fibrocartílago, fisiopatología del fibrocartílago articular, modeladores moleculares del fibrocartílago y deterioro del fibrocartílago. Resultados: Se identificaron 1.071 títulos de artículos que después de las exclusiones, fueron seleccionados 16 a texto completo para la revisión. El fibrocartílago (FC) que cubre las superficies de las ATM es un tejido crítico en el establecimiento y la tasa de progresión de las alteraciones óseas degenerativas, clínicamente sus discontinuidades se asocian a patologías que provocan dolor, ruidos y limitación funcional. Conclusiones: A pesar de la diversidad metodológica, heterogeneidad de objetivos y diferentes características de los estudios incluidos en la revisión, el fibrocartílago de la ATM, como tejido avascular, determina fisiología de baja capacidad reparativa y mayor frecuencia de patología del FC en mujeres en edad fértil, asociado a receptores hormonales. La fisiopatología muestra reacciones inmunitarias que incrementan la acción de MMPs, interleucinas y FNTα, responsables de la degradación de la matriz extracelular, destrucción celular y morfológica del fibrocartílago, que conducen a sintomatología inflamatoria y degenerativa de pacientes que presentan artralgias y sinovitis en las ATM.

ABSTRACT: The aim: of the present study was to carry out an updated review of the morphology, physiopathology and molecular aspects of the TMJ fibrocartilage in humans. Method: electronic/manual search was performed with the MeSH terms "TMJ" and "fibrocartilage", with no date or language limit. The defined outcomes were: morphology of the fibrocartilage, physiopathology of the articular fibrocartilage, fibrocartilage molecular modelers and fibrocartilage deterioration. Results: 1071 articles were identified and after exclusions, 16 full-texts were selected for review. The fibrocartilage (FC) that covers the surfaces of the TMJ is a critical tissue in the establishment and progression rate of degenerative bone diseases; clinically, its discontinuities are associated with pain, noise and functional limitation. Conclusions: In spite of the methodological diversity, heterogeneity of objectives and different characteristics of the patients included in the review, TMJ fibrocartilage, as avascular tissue, determines a physiology of low reparative capacity, observed with greater frequency of FC damage in women of fertile age, associated with a greater amount of hormonal receptors. The physiopathology shows that the immune reactions increase some MMPs, interleukins and FNTα, which are linked to the degradation of the extracellular matrix, FC cellular and morphological destruction and define the inflammatory and degenerative symptomatology of patients who present TMJ arthralgia´s and synovitis.

Desprogramación neuromuscular en paciente con maloclusión esquelética clase II previo a tratamiento ortodóncico-quirúrgico / Neuromuscular deprogramming in malocclusion class II patient before an orthodontic-surgery treatment

Los pacientes con problemas esqueléticos clase II que han terminado su crecimiento, generalmente, se tratan con cirugía ortognática o extracciones de piezas dentarias. Un objetivo del tratamiento es obtener estabilidad a largo plazo. El presente caso clínico es de un paciente masculino de 15 años de edad con clase II esquelética sagital que se realizó desprogramación neuromuscular con un plano de acrílico, que permitió determinar la verdadera discrepancia intermaxilar y obtener que la articulación temporomandibular estuviera en una posición estable en relación céntrica del paciente previo a su tratamiento ortodóncico prequirúrgico (AU)

In patients with class II skeletal problems who have finished their growth; they are treated with orthognathic surgery or dental extractions usually. One treatment goal is to obtain long-term stability. The present case report is of a 15 years old male patient with skeletal sagittal class II who underwent neuromuscular deprogramming with an acrylic plane, which allowed to determine the true skeletal discrepancy and achieve a stable position of the temporomandibular joint in centric relation before the orthodontic treatment (AU)

Temporomandibular joint function 10-15 years after mandibular setback surgery and six weeks of intermaxillary fixation

Abstract Intermaxillary fixation (IMF) is a classic method for immobilization of the mandible after mandibular fractures and corrective surgery. However, it has been suggested that IMF may be a risk for developing temporomandibular joint (TMJ)-related symptoms, especially when applied for longer periods. Objective: To evaluate the clinical function of TMJs and masticatory muscles 10-15 years after mandibular setback surgery and subsequent six weeks of IMF. The patients' self-reported TMJ and masticatory muscle symptoms were also addressed. Methodology: Thirty-six patients (24 women and 12 men) treated with intraoral vertical ramus osteotomies and subsequent six weeks of IMF, underwent a clinical examination of TMJs and masticatory muscles 10-15 years after surgery and completed a five-item structured questionnaire reporting subjective TMJ-related symptoms. Mean age by the time of clinical examination was 34.1 years (range 27.2-59.8 years). The clinical outcome was registered according to the Helkimo clinical dysfunction index. Descriptive and bivariate statistics were performed and level of significance was set to 5%. Results: Mean maximum unassisted mouth opening 10-15 years after surgery was 50.1 mm, (range 38-70 mm, SE 1.2), statistically significantly greater in men compared to women (p=0.004). Mean Helkimo dysfunction group was 1.5 (range 1-3, SE 0.10). Eighty-one percent experienced pain on palpation in either the masseter muscle, temporal muscle or both, and 31% experienced pain when moving the mandible in one or more directions. Thirty-one percent reported pain from palpating the TMJs. In the questionnaire, none reported to have pain during chewing or mouth opening on a weekly or daily basis, but 22% reported difficulties with maximum opening of the mouth. Conclusion: Ten to fifteen years after mandibular setback surgery the patient's mandibular range of movement is good. Despite clinically recognizable symptoms, few patients reported having TMJ- or masticatory muscle-related symptoms in their daily life.

Alteraciones posturales frecuentes en pacientes con diferentes tipos de trastornos temporomandibulares / Frequent postural alterations in patients with different types of temporomandibular disorders

RESUMEN Objetivo Describir las alteraciones posturales más frecuentes, de acuerdo al tipo de trastorno temporomandibular (TTM). Metodología Se analizaron 30 pacientes con edad media de 27,4 años; 80% mujeres, con diagnóstico de TTM confirmado con los Criterios Diagnósticos (CD/TTM) por investigador capacitado en la clínica de la Facultad de Estomatología de la BUAP. Posteriormente se realizó el análisis postural (tres vistas) con ayuda de una cuadrícula de acetato en las instalaciones de la Licenciatura de Fisioterapia de la BUAP. Se analizaron los resultados con estadística descriptiva en el programa SPSS v20. Resultados El 16,7% de los pacientes presentó TTM de origen muscular, el 36,7% articular y el resto combinado. Las alteraciones posturales más frecuentes fueron: hombro elevado: 93,3%, basculación pélvica: 86,7% y posición de cabeza adelantada: 83,3%. El mayor porcentaje de pacientes presentó cinco alteraciones posturales. El 100% presentó alteraciones en la vista lateral y el 50% de los pacientes con TTM de origen combinado presentaron alteraciones en las tres vistas, mientras en los de origen articular; el 45,5% y en los de origen muscular; el 60%. Conclusiones Los pacientes con TTM presentan alteraciones posturales; principalmente posición de cabeza adelantada, basculación pélvica y hombro elevado, con especial compromiso en los de diagnóstico muscular y combinado.(AU)

ABSTRACT Objective To describe postural alterations according to the type of temporomandibular disorder (TMD). Methods Prior informed consent, 30 patients were included in the study, with a mean age of 27.4 years; 80% women, diagnosed with TMD based on Diagnostic Criteria (DC/ TTM) by a trained researcher in the clinic of the Faculty of Stomatology of the BUAP. Subsequently, a postural analysis (three views) was carried out at the facilities of the School of Physiotherapy of the BUAP using an acetate grid. The results were analyzed with descriptive statistics in the SPSS v20 program. Results 16.7% of the patients presented muscular TMD, 36.7% joint TMD, and the rest combined TMD. The most common postural alterations were: high shoulder: 93.3%, pelvic tilt: 86.7%, and forward head posture: 83.3%. On average, the patients had between 4 and 5 postural changes. 100% of the patients ha alterations in the side view, while 50% of the patients with TMD of combined origin had alterations in the three views, as well as 45.5% of the patients with TMD of joint origin, and 60% of the patients with TMD of muscular origin. Conclusions TMD patients present postural changes, mainly forward head posture, pelvic tilt and high shoulder, with special involvement related to muscle and combined diagnosis.(AU)

Disfunciones temporomandibulares y su relación con trastornos de ansiedad en niños: un caso clínico / Temporomandibular joint dysfunctions and their relationship with anxiety disorders in children: report of a clinical case

La presencia de desórdenes temporomandibulares (TTM) en el niño es un tema controversial. Algunos autores sostienen su ausencia en la población infantil; sin embargo, otros han observado signos y síntomas de TTM en poblaciones pediátricas. Nosotros creemos que tales desórdenes pasan inadvertidos con frecuencia por la falta de un examen clínico completo y minucioso que incluya el estudio de la ATM como parte del sistema estomatognático y como revisión rutinaria en la clínica odontopediátrica. Ante las reiteradas consultas que recibimos en la asignatura Odontología Niños de la FOLP, surgió la inquietud de profundizar en el tema y decidimos realizar un trabajo de investigación denominado : "Disfunciones temporomandibulares y su relación con trastornos de ansiedad en una población infantil". El objetivo general de este trabajo fue determinar los signos y síntomas de los TTM y su relación con los distintos niveles de trastornos emocionales en una población infantil, con el propósito de brindar información a odontólogos y odontopediatras acerca de la importancia de realizar un correcto examen clínico de la ATM que nos alerte sobre la posibilidad de aparición de TTM en niños, sin dejar de estar atentos a los miedos o los diferentes grados de ansiedad que los niños pueden desarrollar y que contribuyen en buen grado a agravar o desencadenar el cuadro.

Influence of the presence of Temporomandibular Disorders on postural balance in the elderly

ABSTRACT Purpose To investigate the influence of the presence of Temporomandibular Disorders (TMD) on postural balance in elderly individuals. Methods The study sample consisted of 150 elderly: 103 women (67.7±5.0 years) and 47 men (69.3±5.5 years). Evaluation of the presence and severity of TMD included an anamnesis questionnaire, an evaluation of the temporomandibular joint (TMJ), and a muscular examination, which allowed the division of the elderly into 2 groups: G1 (experimental, n=95), with TMD; G2 (control, n=55), without TMD. Postural balance was assessed by means of the one-leg stance test (OLST) on a force platform (BIOMEC400), thus permitting the following measurements: center of foot pressure (COP); mean sway velocity (MV) and frequency (MF) of COP in both the anteroposterior (VAP and FAP) and medial/lateral (VML and FML) directions. The statistical analysis of data was performed using independent t-test, Variance Analysis, and Chi Square test (α=5%). Results Presence of TMD was observed in 63.3% of the individuals (Group 2), with different degrees of severity (mild: 42.7%, moderate: 14.7%, severe: 6%). Significantly higher TMD was observed for women (73.8%) compared with men (40.4%) (p=0.0002). No significant difference was found in between the groups for all balance parameters, e.g., presence and severity of TMD, presence of pain to palpation of TMJ and of masticatory and cervical muscles. Conclusion The presence and severity of TMD, in addition to the presence of pain to palpation of TMJ and masticatory and cervical muscles did not alter the variables related to postural balance in this population.

La artritis reumatoidea juvenil y su influencia en la alteración de desarrollo de la mandíbula / Juvenile rheumatoid arthritis and its influence on the alteration of jaw development

La artritis reumatoidea juvenil (ARJ) es una enfermedad inflamatoria autoinmune que se presenta en niños menores de 16 años. Es de curso crónico, etiología desconocida, y afecta sobre todo las articulaciones, como la temporomandibular (ATM). El daño de la ATM puede ocasionar: alteraciones en el crecimiento facial (micrognatia), maloclusión clase II, mordida abierta anterior, desviaciones laterales, erosiones óseas, destrucción del cón-dilo, oclusión disfuncional y alteración de la estética facial, entre otras consecuencias. La posición oclusal neurofisiológica lograda por medio de elementos electrónicos, como el Transcutaneus Electrical Neural Stimulation (TENS), y mantenida por el Dispositivo Intaroral (DIO) podría posibilitar la remodelación de la cabeza del cóndilo, en pacientes en crecimiento, en los que la enfermedad se halla controlada, regulando así también la sintomatología dolorosa...

Sinais e sintomas de desordem temporomandibular em mulheres e homens / Signs and symptoms of temporomandibular disorders in women and men

RESUMO Introdução: Mulheres são mais susceptíveis às desordens temporomandibulares (DTM), contudo, estudos que tenham comparado os gêneros em amostras brasileiras são raros. Objetivo: Analisar a proporção de homens e mulheres, bem como a associação entre o gênero e as variáveis idade, duração do problema e sintomas de DTM em pacientes admitidos para tratamento em uma clínica universitária. Métodos: Foram coletados e analisados dados de entrevista e avaliação de mil protocolos de pacientes com diagnóstico de DTM, divididos em 2 grupos, masculino (n=177) e feminino (n=823). Foi realizada a análise exploratória a partir de tabelas de contingência e teste do χ2. Posteriormente, foi utilizado o modelo de regressão logística e calculadas as odds ratio brutas (OR) referentes às comparações avaliadas. Resultados: Na amostra prevaleceu o gênero feminino e as médias de idade e de duração da DTM foram semelhantes entre os grupos, predominando a faixa etária de adultos jovens (19 a 40 anos). Os valores de OR evidenciaram associação entre o gênero feminino e os sinais/sintomas dor na articulação temporomandibular (ATM), dor nos músculos faciais, pescoço e ombros, cefaleia, fadiga nos músculos mastigatórios, sintoma otológico e disfonia, tendo sido a chance das mulheres os apresentassem duas vezes maior do que os homens. Conclusão: Na amostra de pacientes brasileiros com DTM foi maior o número de mulheres e essas apresentaram maior prevalência de sintomas dolorosos, seguidos pelos otológicos e queixas de disfonia. A prevalência de ruído articular foi semelhante nos grupos estudados.

ABSTRACT Introduction: Women are more likely to present temporomandibular disorders (TMD); however, studies comparing genders in Brazilian samples are rare. Purpose: To analyze the proportion of men and women, as well as the association between gender and age, problem duration, and TMD symptoms in patients admitted to an university clinic for treatment. Methods: Interview and assessment data of protocols from 1,000 patients diagnosed with TMD were collected and analyzed and then divided into two groups, male (n = 177) and female (n = 823). The exploratory analysis was based on contingency tables and χ2 test was carried out. Subsequently, the logistic regression model was used and the odds ratios (OR) concerning the evaluated comparisons were calculated. Results: Females were more prevalent in the sample, and mean ages and TMD duration were similar between the groups, with higher occurrence in young adults (19 to 40 years old). The OR values showed an association between the female gender and the signs/symptoms of pain in the temporomandibular joint, pain in the facial muscles, neck and shoulders, headache, fatigue in the muscles of mastication, otologic symptoms, and dysphonia. Women had two times higher chances of presenting these symptoms than men. Conclusion: In the sample of Brazilian patients with TMD, the number of women who presented a higher prevalence of painful symptoms was greater, followed by otologic symptoms and complaints of dysphonia. The prevalence of joint noise was similar in both studied groups.

Jaw movement during the speech in children with allergic rhinitis / Movimentos mandibulares na fala em crianças com rinite alérgica

INTRODUCTION: Allergic rhinitis can cause changes in stomatognathic functions, which may alter the mandibular dynamics. Electrognathography is used in the recording of jaw movements, making it valid for analysis of movements in speech.PURPOSE: To characterize the amplitude and velocity of jaw movements during speech in children with and without allergic rhinitis.METHODS: The sample consisted of 32 children aged 7-12 years, treated at a university hospital, divided into two groups: one with rhinitis and the other without rhinitis. To capture the jaw movements during speech, we used an electrognathography with the aid of a list of phonetically balanced figures. For the analysis of data, we used, in addition to descriptive statistics, nonparametric tests, Spearman correlation coefficient and the Mann-Whitney test, with a significant value of p=0.05.RESULTS: No significant difference was observed in jaw movements between groups, with values of p equals to 0.175, 0.650, and 0.462 for amplitude and jaw opening and closing velocity, respectively. However, a strong correlation was observed between the variables velocity and amplitude of mouth opening, being slightly higher in the group of children with allergic rhinitis.CONCLUSION: The amplitude and velocity of jaw movements are found to be similar in children with and without allergic rhinitis, and a correlation exits between these variables. In addition, they were more heterogeneous in the group without allergic rhinitis.

INTRODUÇÃO: A rinite alérgica pode causar alterações nas funções estomatognáticas; tais modificações podem alterar a dinâmica mandibular. A eletrognatografia é utilizada no registro dos movimentos de mandíbula, o que a torna válida para análise desses movimentos na fala.OBJETIVO: Caracterizar a amplitude e a velocidade dos movimentos de mandíbula durante a fala em crianças com e sem rinite alérgica.MÉTODOS: A amostra foi composta por 32 crianças com idade entre 7 e 12 anos, atendidas em um hospital universitário, divididas em dois grupos, um de riníticos e outro de não riníticos. Para captação dos movimentos mandibulares durante a fala, foi utilizado um eletrognatógrafo com o auxílio de uma lista de figuras foneticamente balanceadas. Na análise dos dados utilizaram-se, além da estatística descritiva, os testes não paramétricos, coeficiente de correlação de Spearman e o teste de Mann-Whitney, considerando significativo o valor de p=0,05.RESULTADOS: Não se observou diferença significativa nos movimentos mandibulares entre os grupos, com valores de p iguais a 0,175, 0,650 e 0,462, para a amplitude e as velocidades de abertura e o fechamento mandibular, respectivamente. No entanto, houve correlação forte entre as variáveis velocidade e amplitude de abertura da boca, sendo discretamente maior no grupo de crianças com rinite alérgica.CONCLUSÃO: Observou-se que a amplitude e a velocidade dos movimentos mandibulares são semelhantes em crianças com e sem rinite alérgica, e que existe correlação entre estas variáveis; além disso, seus valores apresentaram-se de forma mais heterogênea nos não riníticos.

Correlation between gender, temporomandibular joint disc position and clinical findings in patients with temporomandibular disorder / Correlação entre sexo, posição do disco da articulação temporomandibular e os resultados clínicos em pacientes com disfunção temporomandibular

OBJECTIVE: The objective of this study was to assess gender differences in temporomandibular joint disc position using magnetic resonance imaging and to check for symptoms in patients with temporomandibular disorders. MATERIALS AND METHODS: Eighty-seven consecutive patients (70 females and 17 males) were evaluated. Bilateral magnetic resonance imaging was performed to determine the temporomandibular joint disc positions; these were divided into four diagnostic categories: no disc displacement, right disc displacement, left disc displacement and bilateral disc displacement. The clinical data assessed were pain on muscle and temporomandibular joint palpation. The data were analyzed using the Fisher's exact test, chi-square test or analysis of variance. Significance was set at p ≤ .05. RESULTS: The study population had more females (80.5%) than males (19.5%) and the mean age of females (31 ± 11 years) was lower than the mean age of males (41± 12 years). Bilateral disc displacement was significantly most frequent in females. Clinical examination showed more pain on muscle palpation for female than for male patients. CONCLUSION: Women had a higher frequency of temporomandibular joint disc displacement, as well as a larger number of painful points on muscle palpation than men.

RESUMO OBJETIVO: O objetivo deste estudo foi avaliar as diferenças de gênero na posição do disco da articulação temporomandibular usando ressonância magnética para verificar se há sintomas em pacientes com disfunção temporomandibular. MATERIAIS E MÉTODOS: Foram avaliados oitenta e sete pacientes consecutivos (70 mulheres e 17 homens); foi realizada ressonância magnética bilateral para determinar as posições do disco da articulação temporomandibular; estes foram divididos em quatro categorias diagnósticas: nenhum deslocamento de disco, deslocamento de disco a direita, deslocamento de disco a esquerda e deslocamento de disco bilateral. Os dados clínicos avaliados foram: dor a palpação no músculo e na articulação temporomandibular. Os dados foram analisados utilizando o teste exato de Fisher, teste do qui-quadrado ou análise de variância. Significância foi de p ≤ 0,05. RESULTADOS: A população do estudo tinha mais mulheres (80,5%) que homens (19,5%). O deslocamento blateral de disco foi significativamente mais frequente no sexo feminino. O exame clínico mostrou mais dor à palpação muscular para mulheres do que para homens. CONCLUSÃO: As mulheres apresentaram uma maior frequência de deslocamento de disco da articulação temporomandibular, bem como um maior número de pontos dolorosos à palpação muscular do que os homens.

Reabsorções condilares em pacientes cirúrgicos: alternativas terapêuticas conservadoras e minimamente invasivas / Condylar reabsortion in surgical patients: conservative and minimally invasive therapeutic alternatives

Resumo / O processo degenerativo articular é caracterizado pela presença de crepitação, que pode estar acompanhada ou não de artralgia, com dor espontânea ou provocada pela palpação e/ou função. Esse diagnóstico é confirmado por meio de imagens tomográficas. A prevalência de lesões degenerativas da ATM é extremamente alta em pacientes candidatos a procedimentos de Cirurgia Ortognática, e esse pode aumentar o risco de agravamento dos quadros preexistentes, inclusive com a possibilidade de grandes recidivas pós-cirúrgicas da deformidade dentofacial. Estratégias terapêuticas envolvem protocolos capazes de produzir efeitos sobre a dor e a incapacidade funcional, mas também na interrupção da progressão e no reparo dos defeitos da cartilagem articular. A abordagem terapêutica inicial utiliza de terapias não cirúrgicas ou minimamente invasivas, baseadas na supressão da carga articular parafuncional por meio da utilização de placas estabilizadoras e na administração de suplementos ou infiltração de materiais biológicos, como as glicosaminas e ácido hialurônico. Procedimentos cirúrgicos mais invasivos, como as cirurgias abertas da ATM, são reservados para casos isolados refratários à terapia conservadora. Entre os procedimentos da medicina regenerativa, o transplante autólogo de condrócitos parece ser o mais promissor como alternativa terapêutica eficaz e segura para casos de reabsorções condilares.

Signs and symptoms of Temporomandibular Disorders in the elderly / Sinais e sintomas dos Transtornos Temporomandibulares em Idosos

Purpose: This study investigated the prevalence of Temporomandibular Disorders (TMD) in the elderly and its association with palpation of the temporomandibular joint (TMJ), masticatory and cervical muscles as well as the presence of headache and joint noises. Methods: The sample consisted of 200 elderly of both genders (mean age: 69.2±5.7 years). The clinical evaluation of TMD signs and symptoms was divided into three stages: an anamnestic questionnaire, a TMJ evaluation, and a muscular examination. The results were analyzed through descriptive statistics as well as using χ2 and the tendency tests. Results: The presence of TMD was observed in 61% of the sample (mild: 43.5%, moderate: 13%, severe: 4.5%). A significantly greater prevalence of TMD was found for females (72.4%) compared with that for men (41.1%) (p<0.0001). Additionally, a significant association among TMD severity and palpation of the TMJ (p=0.0168), of masticatory muscles (p<0.0001), and of cervical muscles (p<0.0001) was verified. Also, there was a significant association between the frequency of headaches and the presence of TMD (p=0.0001). The association between the presence of joint noises and sensitivity to TMJ palpation was not significant. Conclusion: The elderly presented high TMD prevalence, mostly in females, with mild severity and related to TMJ and masticatory/cervical muscles palpation. Thus, the accomplishment of a detailed clinical examination to investigate the presence of such disorders is essential and it must not be neglected during the treatment of elderly patients. .

Objetivo: O objetivo deste estudo foi investigar a prevalência de Transtornos Temporomandibulares (DTM) em idosos e sua associação com a palpação da articulação temporomandibular (ATM), dos músculos mastigatórios e cervicais, bem como com a presença de dores de cabeça e ruídos articulares. Métodos: A amostra foi composta por 200 idosos, de ambos os gêneros (média de idade: 69,2±5,7 anos). A avaliação clínica dos sinais e sintomas foi dividida em três etapas: aplicação de questionário anamnésico, avaliação da ATM e exame muscular. Os resultados foram avaliados por meio de estatística descritiva, teste do χ2 e teste de tendência. Resultados: A presença de DTM foi observada em 61% da amostra (leve: 43,5%, moderada: 13%, intensa/grave: 4,5%). Verificou-se prevalência significantemente maior de DTM para as mulheres (72,4%) em comparação aos homens (41,1%) (p<0,0001). Houve associação significante entre a severidade da DTM e a presença de dor à palpação da ATM (p=0,0168), dos músculos mastigatórios (p<0,0001) e cervicais (p<0,0001). Observou-se associação significante entre a frequência de dores de cabeça e a presença de DTM (p=0,0001). Não houve associação significante entre a presença de ruídos articulares e a sensibilidade à palpação da ATM. Conclusão: Os idosos apresentaram alta prevalência de DTM, em sua maioria no gênero feminino, de grau leve, relacionada à palpação na ATM e nos músculos mastigatórios e cervicais. Assim, é essencial a realização de um completo exame clínico para investigar a presença desses transtornos, especialmente durante o tratamento de idosos. .

Manifestaciones óseas de las enfermedades degenerativas de la articulación temporomandibular disfuncionada estudio tomográfico / Bone manifestations of degenerative diseases in temporomandibular joint with internal derangements tomography study

El objetivo del presente estudio retrospectivo fue determinar el tipo y frecuencia de las alteraciones óseas degenerativas en la Articulaciones Temporo-Mandibulares (ATM) de pacientes con diagnóstico clínico de Trastorno Temporomandibular (TTM) por medio de Tomografía Computarizada (TAC). Se reclutaron 180 pacientes consecutivos que clínicamente presentan TTM de las ATM. Los criterios de exclusión fueron: pacientes menores de 16 años, pacientes mayores de 65 años, pacientes portadores de prótesis dentarias removibles, enfermedades sistémicas como artritis por microcristales de ácido úrico, osteoartrosis sistémica, hiperlaxitud-ligamentaria, malformaciones anatómicas, enfermedades quísticas, tumorales, historia de trauma o cirugía de las ATM. Todos los pacientes fueron examinados por medio de TAC. Los estudios imagenológicos de las ATM formaron los siguientes seis Grupos: A: Aplanamiento de Vertiente anterior de Cóndilo; B: Aplanamiento de Apófisis transversa del temporal; C: Erosiones e irregularidades de las corticales de las superficies óseas Funcionales; D: Osteofitos; E: Quístes Subcondrales; F: Resorción Condilar Progresiva. Los datos fueron analizados estadísticamente por medio del programa SPSS v15.0. Total de ATM examinadas: n=360; Total de ATM con alteraciones degenerativas: n=192(53,3%); Aplanamiento condilar n=169(88%); Aplanamiento de la apófisis transversa del temporal n=84(43%); Erosiones corticales: n=98(51%); Osteofitos: n=11(5,7%); Quistes Subcondrales n=35(18,2%) y Resorción Condilar Progresiva n=3(1,5%). Las alteraciones óseas de mayor frecuencia en la ATM disfuncionada fueron: Aplanamiento de ápex condilar, erosiones y aplanamiento de Apófisis transversa del temporal en orden decreciente. Menores manifestaciones fueron Quistes subcondrales, Osteofitos y Resorción Condilar Progresiva.

The objective of the present study was to determine frequency of bone degeneratives diseases in the Temporo Mandibular joint, clinically diagnosed as Temporo Mandibular Disorders (TMD), by CT scan, before treatment. Were recruited 180 consecutives patients that clinically presented TMD. They were examined by CT scan. The exclusion criteria were: patients below 16 years and above 65 years of age, patients using removable dental prosthetics, patients that presented systemic disease such as Gout Disease, Osteoarthrosis and hypermobility, anatomic structural alterations, Cyst or Tumour disease and TMJ surgery. The TMJ images studies formed the following six groups: A: Flattened of condyle apex; B: Flattened of protuberance of the Temporal Bone; C: Erosions and irregularities of cortical bone in functional area; D: Osteophytes; Sub-chondral Cysts; E: Progressive Condyle Reabsorption. Data were analyzed by SPSS v15.0 software. Total Examined TMJ: n=360; Degenerative Bone Disease manifestations in TMJ: 192 (53,3%); Flattened of functional area of mandibular condyle n=169 (88%); Flattened of temporal Bone n=84 (43%); Erosions and irregularities of cortical bone: n=98 (51%); Osteophytes: n=11 (5,7%); Subchondral cysts: n=35 (18,2%) and Progressive Condyle Reabsorption n=3 (1,5%). The most frequent bone alterations in DTM were: Flattened of apex condyle, cortical erosions and irregularities and temporal bone flattened. Lower manifestations were subchondral cysts, osteophytes and avascular necrosis, when DTM are studied by CT scan.

Assessing joint effusion and bone changes of the head of the mandible in MR images of symptomatic patients

The aim of the present study was to investigate the relationship between degenerative bone changes of the head of the mandible and the presence of joint effusion (JE). This study was based on sagittal magnetic resonance imaging (MRI) reports of 148 temporomandibular joints (TMJs) of 74 patients complaining of pain and/or dysfunction in the TMJ area. The mandible heads were surveyed for osteoarthritis characteristics, which were classified as osteophytosis, sclerosis or erosion. The presence of JE was checked whenever high signal intensity was observed in the articular space. The results evidenced the presence of bone changes in 30% of the sample. Osteophytes and erosions were the changes most commonly observed. JE was reported in 10% of TMJs. The results from the statistical tests revealed that bone changes in the head of the mandible are associated with the presence of JE.

Coronoid process hyperplasia: an unusual cause of mandibular hypomobility

A large number of disorders affecting the masticatory system can cause restriction of mouth opening. The most common conditions related to this problem are those involving the temporomandibular joint (TMJ) and the masticatory muscles, when facial pain also is an usual finding. Congenital or developmental mandibular disorders are also possible causes for mouth opening limitation, although in a very small prevalence. Coronoid process hyperplasia (CPH) is an example of these cases, characterized by an excessive coronoid process growing, where mandibular movements become limited by the impaction of this structure on the posterior portion of the zygomatic bone. This condition is rare, painless, usually bilateral and progressive, affecting mainly men. Diagnosis of CPH is made based on clinical signs of mouth opening limitation together with imaging exams, especially panoramic radiography and computerized tomography (CT). Treatment is exclusively surgical. This paper presents a case of a male patient with bilateral coronoid process hyperplasia, initially diagnosed with bilateral disk displacement without reduction, and successfully treated with intraoral coronoidectomy. It is emphasized the importance of differential diagnosis for a correct diagnosis and, consequently, effective management strategy.

Um grande número de distúrbios pode provocar limitação no grau de abertura bucal. As condições mais comuns relacionadas com esse problema são aquelas que envolvem a articulação temporomandibular (ATM) e músculos mastigatórios, em que, além da limitação, a dor facial é um achado comum. Distúrbios congênitos ou de desenvolvimento da mandíbula também são possíveis causas para limitação de abertura bucal, embora possuam uma baixa prevalência. A hiperplasia do processo coronóide (HPC) é um exemplo dessas causas, caracterizada por um desenvolvimento excessivo do processo coronóide, em que o movimento mandibular torna-se limitado pela impacção dessa mesma estrutura na parte posterior do osso zigomático. Esta condição é rara, indolor, geralmente bilateral e progressiva, afetando principalmente homens. O diagnóstico de HPC é feito por meio dos sinais clínicos de abertura bucal limitada associado com exames de imagem, especialmente a radiografia panorâmica e tomografia computadorizada (TC). O tratamento é exclusivamente cirúrgico. O objetivo desse artigo é apresentar um caso de paciente do sexo masculino com hiperplasia bilateral do processo coronóide, inicialmente diagnosticado com deslocamento de disco sem redução bilateral, e tratado com sucesso com coronoidectomia intraoral. Assim, é enfatizada a importância do diagnóstico diferencial para um correto diagnóstico e, consequentemente, estratégias efetivas de tratamento.