Analysis of the postural stability in individuals with or without signs and symptoms of temporomandibular disorder

Abstract

The objective of this study was to evaluate the stability and the distribution of weight of individuals with TMD (Temporomandibular Disorder) when placed in an orthostatic position. Forty female volunteers, participating in this study, were distributed into a control and a TMD group. Clinical examinations of the craniomandibular system and of the neck were performed. Postural stability was evaluated using a stabilographic platform. Through this system, the sway index (SI), the maximum medial-lateral distance (MMLD), the maximum anterior-posterior distance (MAPD) and the medial-lateral symmetry (MLS) could be determined. Tests were performed in the mandibular rest position and during isometric and isotonic contraction. The variables were analyzed through repeated measures ANOVA. The level of significance was p < 0.05. The results of this study indicate that individuals with TMD present more pain in the cervical region (p < 0.05). The group with TMD showed a significant reduction in SI (p < 0.05), MMLD (p < 0.05) and MLS (p < 0.01). Individuals with TMD presented greater postural asymmetry, and cervical pain demonstrated a potential link with an increase in postural stability.

Influence of craniomandibular and cervical pain on the activity of masticatory muscles in individuals with Temporomandibular Disorder

“…The best location of the electrodes was determined by a test of muscle function. The participant was asked to perform an isometric contraction of the mandible elevator muscles for the location of the MA (2 cm above the angle of the jaw) and AT (vertically from the anterior margin of the muscle) (14,15) . Before the start of the electromyographic data collection, a training program was conducted.…”

Systematic Review of the Correlation Between Temporomandibular Disorder and Body Posture

“…Their texts were analyzed to exclude protocols, articles with topics that deviated from our topic of interest (e.g., head and neck posture, TMJ surgery), single case studies, systematic literature reviews, and literature reviews. Finally, nine articles published after the year 2000 were selected to reflect recent research trends (Table 1 [4,[18][19][20][21][22][23][24][25]; Fig. 1).…”

“…The remaining six articles (Munhoz et al [18], Ries & Bérzin [19], Munhoz & Marques [20], Saito et al [21], Souza et al [24], Rocha et al [25]) were case-control studies.…”

“…Munhoz & Marques [20] additionally classified patients' symptoms into mild, moderate, and severe using a questionnaire and the Helkimo index [26]. The RDC/TMD was used in seven studies [4,19,[21][22][23][24][25], while Saito et al [21] also performed diagnoses based on an interview for clinical symptoms and supplemental X-ray data.…”

Head and Neck Pain, Differential Diagnosis, Referred Pain

“…Servikal bölgede en önemli a¤r› nedenlerinin bafl›nda postür bozuklu¤una ba¤l› kas a¤r›lar› gelmektedir (4 nin patolojileri birbirini etkilemekte, postüral bozuklukla temporomandibular eklem problemi tetiklenirken, temporomandibular ve oklüzal sorunlar bafl, boyun a¤r›lar›n› kolaylaflt›rmaktad›r (4). Dental oklüzyon ve trigeminal sistemin postür kontrolundaki rolü ve mandibuler pozisyonun de¤iflmesinin basma alan› ve yürü-me stabilitesini etkilemesi mandibuler pozisyona ba¤l› olarak postürün de¤iflimine yol açabilmektedir (5).…”