Temporomandibular disorders and quality of life among 12-year-old schoolchildren.

Objectives: The aim of this study was to investigate the association between symptoms of temporomandibular disorders (TMD), quality of life, and malocclusion.

Methods: A cross-sectional observational design study was utilized among 248 schoolchildren aged 12 years old. Symptoms of TMD were assessed using the Orofacial Pain and Temporomandibular Disorders Triage Questionnaire, and subjects were further evaluated as oral-health-related quality of life (CPQ), tooth clenching/grinding and malocclusion (Dental Aesthetic Index).