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Radiographic Evaluation of Condyle Position at Maximum Intercuspal Position Using Cone-beam CT  

Oh, Sang-Chun (Dept. of Prosthodontics, School of Dentistry, Wonkwang University)
Chee, Young-Deok (Dept. of Oral & Maxillofacial surgery, School of Dentistry, Wonkwang University)
Publication Information
Journal of Dental Rehabilitation and Applied Science / v.26, no.2, 2010 , pp. 111-120 More about this Journal
Abstract
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.
Keywords
the condyle position; the maximum intercuspal position; Cone-beam CT;
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