This study determines the frequency and relationship between disk position and degenerative bone changes
in temporomandibular joints in children and adolescent patients with internal derangement. Study design:
TMJ, MRI of 88 patients were analyzed (average age: 14.7 years-old, range age: 10-18 years-old), female
n=65 (73.9%) and male n=23 (26.1%). Images obtained were used to determine the frequency of disk position,
joint effusion (JE) and degenerative bone changes (OA). Images were assessed by a calibrated radiologist
(Kappa=0.82). Results: No significant association was found between disk displacement with reduction
and degenerative bone changes (Chi2=9.894; OR= 0.375; p=0.0017), nor disk without displacement
(Chi2=9.448; OR= 0.223; p=0.0021). A significant association was found between disk displacement without
reduction and degenerative bone changes (Chi2=30.951; OR=6.304; p=0.0001). Conclusions: There is
a significant association between disk displacement without reduction and degenerative bone changes
(p=0.0001) in children and adolescent patients with TMD
