Overbite depth와 하악과두 위치에 관한 연구 = Study of the Relationship of Mandibular Condylar Position to Overbite Depth

다국어 초록 (Multilingual Abstract)

This study was designed to evaluate the relationship of mandibular condylar position to overbite depth and compare the findings from transcranial radiographs and those from indivisualized corrected tomographs in determination of condylar position.
The subjects consisted of 20 control subjects(male 8, female 12), and 23 deep-bite patients(male 17, female 6). The mean age was 23.6 years for the control group, and 23.2 years for deep-bite group. Transcranial radiographys and individualized corrected tomographys in centric occlusion were taken from right and left temporomandibular joints of each subject. The results were as follows.
In the 20 normal subjects showing no symptoms of TM disorder, the incidence of condylar retrusion was 27.5%, middle condylar position 60.0%, and anterior displacement 12.5%. Only 45.2% of the findings from transcranial radiographs coincided with those from individualized corrected tomographs in determining condylar position. There was significant correlation between the bite depth and observed condylar position.