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. 2011 Fall;5(4):123-7.
doi: 10.5681/joddd.2011.028. Epub 2011 Dec 19.

Temporomandibular Disorders and Related Factors in a Group of Iranian Adolescents: A Cross-sectional Survey

Masoumeh Ebrahimi  1 , Hossein Dashti, Maryam Mehrabkhani, Mohammad Arghavani, Avideh Daneshvar-Mozafari
Affiliations

Temporomandibular Disorders and Related Factors in a Group of Iranian Adolescents: A Cross-sectional Survey

Masoumeh Ebrahimi et al. J Dent Res Dent Clin Dent Prospects. 2011 Fall.

Abstract

Background and aims: Temporomandibular disorders (TMDs) are the most common condition affecting the tem-poromandibular joint and associated structures. The aim of this study was the epidemiologic evaluation of TMDs and re-lated factors in a group of Iranian adolescents.

Materials and methods: This descriptive cross-sectional survey included a sample of800 high school students (400 girls and 400 boys) aged 14 to18 years, in Mashhad, Iran, selected using cluster sampling. Examiners completed question-naires and performed the clinical examinations. Data were analyzed with the Chi-square and Fisher exact tests.

Results: The prevalence of TMDs in the studied sample was 34.7%. The most common signs of TMDs were clicking, muscle tenderness and TMJ tenderness. The most prevalent predisposing factors of TMDs were clenching, premature con-tact in protrusive movement and bruxism. A clear predominance was seen in girls (40.5%) compared with boys (29%) (P = 0.001).

Conclusion: Signs and symptoms of TMDs were prevalent in Iranian adolescents with a clear female predominance.

Keywords: Adolescent; epidemiology; temporomandibular joint disorders.

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