Simona Ulevičiūtė, Pavelas Zachovajevas, Brigita Zachovajevienė


Temporomandibular joint (TMJ) is the most commonly used joint in the human body. TMJ disorders at least one of the symptoms (disturbed mandibular movement, joint crunching, muscles hardness) is determined approximately 40-75% of adults. The aim – to evaluate associations between temporomandibular joint function, psycho-emotional stress and posture. The study included 83 randomly selected students. Perceived stress scale was used to evaluate psycho–emotional stress, W.W.K. Hoeger visual posture evaluation method was used to evaluate students’ posture McGill test was used to evaluate back muscle endurance. TMJ amplitude was evaluated employing a millimetre tape and “Oxford” manual muscle strength scale was used to evaluate temporomandibular joint muscle strength. Psycho-emotional stress experienced by 54% of girls and 69% boys. 10% of patients had excellent posture, 22% good and 68% satisfactory. Male respondents showed to have 1.4 times higher abdominal muscle endurance than female respondents (p ≤ 0.05). Total respondents TMJ muscle strength averaged (3.84 ± 0.63) points. It was found that respondent TMJ muscles strength decreased and more than half of the patients experienced stress. Abdominal muscle static endurance associated with the side waist and back muscle endurance. TMJ motion abnormalities cause masticators muscle strength.

Keyword(s): posture; temporomandibular joint; psycho-emotional stress.
DOI: 10.5200/sm-hs.2016.095
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