Prevalence and comparison of temporomandibular disorders according to Axis I in RDC/TMD and DC/TMD: a cross-sectional study.

Women and middle-aged individuals are more affected by TMDs. Pain-related TMDs were the most common diagnosis, followed by disc displacement with reduction according to DC/TMD. According to the RDC/TMD classification, myofascial pain, arthralgia, and disc displacement with reduction were the most commonly observed diagnoses, respectively. Significant differences were observed between the pain-related TMD and disc displacement with reduction groups.