Immediate effect of nonspecific mandibular mobilization on postural control in subjects with temporomandibular disorder: a single-blind, randomized, controlled clinical trial.

BACKGROUND: Temporomandibular disorder (TMD) is considered multifactorial and is defined as a group of pain conditions characterized by functional stomatognathic system alterations, which may be affected by or related disrupted postural control. OBJECTIVE: Assess the immediate effect of nonspecific mandibular mobilization (NMM) on the postural control of subjects diagnosed or not with TMD. METHOD: A simple-blind, randomized, controlled clinical trial was performed involving 50 subjects of both genders assigned to two groups: the TMD group and the control group. TMD was diagnosed according to the Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD). A stabilometric assessment was performed by testing subjects in a quiet stance on a dual force platform under two visual conditions (eyes open and eyes closed). The Center of Pressure (CoP)-related variables analyzed were displacement, amplitude, speed of anterior-posterior (AP) and medial-lateral (ML) displacements and CoP sway area. The mean values of each variable were compared, considering the accepted significance value of p<0.05. RESULTS: A significant difference between the pre- and post-NMM means could be observed in subjects diagnosed with TMD under the closed-eyes visual condition. There was a statistically significant difference in the CoP sway area (p<0.03) in the ML displacement COPML (p<0.006) and ML amplitude COPML (p<0.01) and in the variable speed in the AP COPAP (p<0.03) and ML COPML (p<0.03) directions, simultaneously. CONCLUSION: These results indicate that nonspecific temporomandibular joint mobilization contributes to the immediate improvement of postural control in patients with TMD.

Immediate effect of nonspecific mandibular mobilization on postural control in subjects with temporomandibular disorder: a single-blind, randomized, controlled clinical trial / Efeito imediato da mobilização mandibular inespecífica sobre o controle postural em indivíduos com disfunção temporomandibular: ensaio clínico controlado, randomizado, simples cego

BACKGROUND: Temporomandibular disorder (TMD) is considered multifactorial and is defined as a group of pain conditions characterized by functional stomatognathic system alterations, which may be affected by or related disrupted postural control. OBJECTIVE: Assess the immediate effect of nonspecific mandibular mobilization (NMM) on the postural control of subjects diagnosed or not with TMD. METHOD: A simple-blind, randomized, controlled clinical trial was performed involving 50 subjects of both genders assigned to two groups: the TMD group and the control group. TMD was diagnosed according to the Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD). A stabilometric assessment was performed by testing subjects in a quiet stance on a dual force platform under two visual conditions (eyes open and eyes closed). The Center of Pressure (CoP)-related variables analyzed were displacement, amplitude, speed of anterior-posterior (AP) and medial-lateral (ML) displacements and CoP sway area. The mean values of each variable were compared, considering the accepted significance value of p<0.05. RESULTS: A significant difference between the pre- and post-NMM means could be observed in subjects diagnosed with TMD under the closed-eyes visual condition. There was a statistically significant difference in the CoP sway area (p<0.03) in the ML displacement COPML (p<0.006) and ML amplitude COPML (p<0.01) and in the variable speed in the AP COPAP (p<0.03) and ML COPML (p<0.03) directions, simultaneously. CONCLUSION: These results indicate that nonspecific temporomandibular joint mobilization contributes to the immediate improvement of postural control in patients with TMD. .

CONTEXTUALIZAÇÃO: A disfunção temporomandibular (DTM) é considerada multifatorial e se define como um grupo de condições dolorosas que se caracteriza por apresentar alterações funcionais do sistema estomatognático que podem estar relacionadas à perturbação ou a uma contribuição em relação ao controle da postura. OBJETIVO: Verificar o efeito imediato da mobilização mandibular inespecífica (MMI) sobre o controle postural em indivíduos com e sem diagnóstico de DTM. MÉTODO: Realizou-se um ensaio clinico controlado, randomizado, simples cego, com 50 indivíduos de ambos os gêneros, alocados em dois grupos: grupo DTM e grupo controle, diagnosticados segundo o RDC/TMD. Realizou-se uma avaliação estabilométrica com os indivíduos sobre uma plataforma de força, em duas condições visuais: olhos abertos e fechados. As variáveis referentes ao centro de oscilação do corpo (COP) analisadas foram: deslocamento, amplitude, velocidade de deslocamentos ântero-posterior (AP) e médio-lateral (ML) e área de oscilação do centro de pressão (COP). Os valores médios de cada variável foram comparados, considerando o nível de significância aceito de p<0,05. RESULTADOS: Foi possível verificar diferença significativa entre as médias pré e pós-MMI nos indivíduos diagnosticados com DTM na condição visual olhos fechados. Houve diferença estatisticamente significante na área de oscilação do COP (p<0,03) no deslocamento médio-lateral COPML (p<0,006), na amplitude médio-lateral COPML (p<0,01) e na variável velocidade nas direções ântero-posterior, COPAP (p<0,03) e médio-lateral ...