Related Experiment Videos
Condyle position as a predictor of temporomandibular joint internal derangement
H Bonilla-Aragon1, R H Tallents, R W Katzberg
1University of Rochester Eastman Dental Center, Rochester, NY, USA.
Statement Of Problem:
The significance of the position of the mandibular condyle in the glenoid fossa remains a controversial subject.
Purpose:
This study evaluated the relationship between condyle position and disk displacement.
Material And Methods:
Fifty-two asymptomatic volunteers and 130 symptomatic patients underwent linear tomography and bilateral temporomandibular joint magnetic resonance scans.
Results:
There was a higher prevalence of distal condyles in symptomatic patients with disk displacement compared with asymptomatic volunteers (P <.05). Distally positioned condyles identified joints with disk displacement with reduction, disk displacement without reduction, or a symptomatic normal joint with a sensitivity of 0.64, 0.56, and 0.33, respectively. Distally positioned condyles identified joints with disk displacement with reduction, disk displacement without reduction, or a symptomatic normal joint with a specificity of 0.56, 0.65, and 0.55, respectively.
Conclusion:
There were more distal condyles in symptomatic subjects with disk displacement, but the reliability of a distal condyle to predict the presence or absence of disk displacement was low.