Background and purpose: Temporomandibular disorders (TMD) are manifested as a group of signs and symptoms diagnosed by pain, malfunction of temporomandibular joint (TMJ) and masticatory muscles. The need to determine the prevalence and factors associated with their communities is emphasized in studies. The present study investigated the incidence of TMD and its symptoms in individuals attending Sari Dental School Clinic, 2014-2015.

Materials and methods: A descriptive-analytical study was conducted in 68 individuals (41 females; 27 males) who were selected by random sampling. Demographic and clinical data were obtained by asking questions and examining the patient. The relation between TMD and other variables were analyzed by Chi-square and exact fisher tests. Data was analyzed in SPSS V.22.

Results: A total of 68 patients was investigated of whom 51 (75%) had TMD. Among these five people had headache (P<0.0001) and 46 were healthy. Also, 5 had muscle pain (P=1), 2 had accident (P<0.0001), 25 had click (p=1), and 2 people had joint pain (P=0.0001). Clinical examination showed 39 individuals with joint sound (P=0.03), 10 with joint pain (P=0.0001) and 34 patents with muscle pain (P=0.64).

Conclusion: A high incidence of TDM was detected in the population attending Sari Dental School Clinic. Significant relation was found between symptoms and TMD.

(Clinical Trials Registry Number: IRCT2014113020158N1)