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KMID : 1004520100260020111
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Journal of Dental Rehabilitation and Applied Science
2010 Volume.26 No. 2 p.111 ~ p.120
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Radiographic Evaluation of Condyle Position at Maximum Intercuspal Position Using Cone-beam CT
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Oh Sang-Chun
Chee Young-Deok
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Abstract
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Purpose: This investigation was designed to evaluate the condyle position and the symmetry of the both condyle
heads at the maximum intercuspal position on the sagittal CT image of the temporomandibular joint.
Materials and Methods : Cone-beam CT was used to assess 400 joints in 100 symptom and 100 symtom-free
subject(100 male, 100 female). Three independent observers(dentists) determined the positions classified with Anterior
Position(AP), Middle Position(MP), and Posterior Position(PP), and the symmetry of the both condyle.
Results: According to gender, the mean percentages of AP, MP, and PP were 48.5, 28.5, and 23 in male group,
and 34, 38, and 28 in female group. The symmetry of condylar heads was more common than asymmetry in the
both of groups. In the respect of symptom or symptom-free, the mean percentages of AP, MP, and PP were 44.5,
34, and 21.5 in the symptom-free group, and 37, 33.5, and 29.5 in the symptom group. The symmetry of condylar
heads was more common in the symptom-free group, but the asymmetry of condylar heads was more common in
the symptom group.
Conclusions: These data might serve as useful criteria for the clinical assessment of condyle position at the
maximum intercuspal position optained by Cone-beam CT.
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KEYWORD
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the condyle position, the maximum intercuspal position, Cone-beam CT
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