Condylar Morphology on CBCT and Correlations with Clinical Signs of Temporomandibular Dysfunction

The incidence of temporomandibular joint (TMJ) dysfunction is on the rise globally. It is important to investigate the correlation between bony changes and dysfunctional signs of TMJs. Hence, this study was done to study the condylar morphology on CBCT and to evaluate the correlation between the condylar morphology and the clinical signs of TMJ dysfunction. The study was conducted with 61 participants with 122 TMJs from February 2022 – August 2022 at the Dental Clinic, University of Medicine and Pharmacy, Vietnam National University, Hanoi. The mean length of condyles showed no significant difference between genders, but the left condyles were significantly longer than the right (p<0.05). A significant correlation was found between the length and width of condyles on both sides (p<0.01). The length of the right condyles was proportional to the width of the left ones (p<0.05) and vice versa (p<0.01). Arthralgia, clicking sounds, and impaired mandibular movements were more frequent with longer right condyles, while myalgia was more frequent with a rise in the length of the right condyles. An increase in the length and width of left condyles was observed with higher rates of arthralgia and impaired mandibular movements, but there was no significant correlation between height and any clinical signs of TMJ dysfunction on both sides. The study measured the dimensions of condyles and found correlations between length and width. Men had larger width and height than women (p<0.05). There were correlations between clinical signs of TMJ dysfunction and condylar length and width, except for myalgia and clicking sounds with certain condylar measurements. Condylar height was found to be unrelated to clinical signs. © (2024), (University of Dicle). All Rights Reserved.