Evaluation of position and configuration of the temporomandibular disk in asymptomatic adult volunteers using MR image

Abstract

In asymtpomatic young-adult volunteers (22 males; 24 females; age from 20 to 28 years), position and configuration of the temporomandibular joint (TMJ) were examined using magnetic resonance (MR) imaging. Disk displacement was found in 54% of all volunteers; 71% in females and 36% in males. Bilateral disk displacement was more frequently found in females, while unilateral disk displacement was more prevalent in males. Disk configuration was biconcave in all volunteers without disk displacement, whereas disck in volunteers with bilateral disk displacement ware various in configuration.