대한치과보철학회지 (The Journal of Korean Academy of Prosthodontics)
- 제25권1호
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- Pages.119-135
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- 1987
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- 0301-2875(pISSN)
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- 2005-3789(eISSN)
하악골 운동의 순간회전 중심결정에 관한 연구
A Study on the Determination of Instantaneous Centre of Rotation in the Mandibular Movement
- Kang, Keun-Su (Department of Prosthodontics, College of Dentistry Chosun University) ;
- Yoon, Chang-Keun (Department of Prosthodontics, College of Dentistry Chosun University)
- 발행 : 1987.12.01
초록
For the determination of instantaneous centre of rotation in the mandibular movement, the habitual opening path was recorded on the sagittal tracing plate by a Gnathorecorder attached on the lower anterior teeth which was designed for this study. The opening path was demonstrated mathematically and the instantaneous centre of rotation in the opening path were calculated and plotted by computer programs, and then a computer graphic movement of the mandible was obtained according to the opening path. The hinge path of posterior border movement was graphied by the Gnathorecorder as well and demonstated mathematically. This hinge path was compared with the same obtained by Visitrainer to prove a reliability of the Gnathorecorder. The results obtained from this study were as follows. 1. The habitual opening path and hinge path obtained from the Gnathorecorder movement were expressed mathematically as follows:
키워드