PREVALENCE OF TEMPOROMANDIBULAR DISORDERS AND ITS RELATION TO MALOCCLUSION AMONG ODONTOSTOMATOLOGY STUDENTS IN HUE MEDICAL AND PHARMACEUTICAL UNIVERSITY

Abstract

Objective: (1) To determine the percentage of symptoms and signs of temporomandibular disorders (TMD); (2) To determine the rate of occlusal traits; (3) To determine the relationship between the signs of TMD and malocclusion traits. Methods: A cross-sectional descriptive study on 201 22-to 24-year-old students studying in Hue University Hospital. Study consists of two main parts: Interviews collected information about symptoms of pain and dysfunction of TMD during 6 months ago. Clinical examination of pain and dysfunction signs through the following components: (1) range of jaw motion, (2) the mouth opening path, (3) temporomandibular joint (TMJ) sounds, (4) and (5), muscle and/or TMJ pain by palpation; (6) malocclusion traits. Results: 72.6% of students had at least one TMD symptoms or signs. There were more students having signs (24.8%) detected by clinical examination than ones being aware of symptoms (8.0%). There was significant correlation between TMJ sounds and molars relationship (p = 0.049); between tooth malposition and TMJ sounds (p = 0.002). Conclusions: Prevalence of TMD signs and symptoms was high and some malocclusion traits were related to TMD. Key words: Temporomandibular disorders, maloclussion traits