Abstract: Objective To investigate the prevalence and identify the possible clinical risk factors associated with the temporomandibular disorders (TMD) in young people in Xinjiang. Methods A sample of 812 medical students was randomly selected from Xinjiang Medical University. The prevalence of TMD was analyzed by Helkimo index, and the possible risk factors associated with the disease were identified by logistic regression analysis. Results The prevalence of TMD was 39.50% in this population. Malocclusion, chewing-side preference and bruxism were the main risk factors which increased the possible occurrence of TMD . Conclusion Malocclusion and occlusal stress fatigue were related to the formation of temporomandibular disorders.

Key words: Temporomandibular joint disorders, Occlusal factors, Logistic regression analysis