BI0PAK을 이용한 하악의 회전운동에 관한 연구
A STUDY ON THE MANDIBULAR ROTATIONAL MOVEMENT USING BIOPAK SYSTEM
한경수,
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한경수 ( ) - 원광대학교 치과대학 구강내과 구강진단학교실
KMID : 0355219940190020193
Abstract
The author performed this study for investigation of the magnitude of mandibular positional change caused the joint sound during mandibular opening and closing movement. There have been many studies stated ,nandibular border movement or other functional movement, and there also have been many studies reported clicking sound related to mandibular movement speed, trajectory and clinical course of temporomandibular disorders(TMDs), but there have not been so many studies stated spatial mandibular position accompanied by pint sound. For this study 46 TM joint from the patients with TMDs were used and they were compared by character and occuring phase of the joint sound. Synchronized data which were amplitude and frequency of joint sowid and arnourtt of mandibular positional change were collected through sonopak and BioECN rotate of Biopak system, respectively. Mandibular position was analyzed for translational and rotational movement &mwe between before and after joint sound The obtained data´ were processed with SAS program and wrrrnary of this paper were as follows
1. Mean value of the amount of translational movement in whole joints were 6.0mm in vertical direction, 2 Mean value of the amount of translational movement in clicking joints showed slightly increased tendency than in popping joints.
111* amount of mandibular change in translational movement during closing phase were more than during opening phase. 3.3mm in anteroposterior direction and 0.8mm in lateral direction between before and after joint sound.
4. The amount of mandibualr rotational change in whole joints were 1.1°, 1.0tiun in frontal plane and 0.9°, and 0.8mm in horizontal plane.
5. The amount of rotational movement were more in clicking joints than in popping joints and were more during closing phase than during opening phase, but statistically significance were showed only in frontal plane
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