정상교합인의 두부위치변화에 따른 교합접촉점의 변화에 관한 연구
A study of occlusal contact variation due to chance in each head position in normal occlusion
최희철, 이성복, 최대균, 박남수,
소속 상세정보
최희철 ( Choi Hee-Cheol ) - 경희대학교 치과대학 치과보철학교실
이성복 ( Lee Sung-Bok ) - 경희대학교 치과대학 치과보철학교실
최대균 ( Choi Dae-Gyun ) - 경희대학교 치과대학 치과보철학교실
박남수 ( Park Nam-Soo ) - 경희대학교 치과대학 치과보철학교실
KMID : 0362419950330040769
Abstract
The understanding the nature of occlusal tooth contacts of natural dentition is import for correct diagnosis and treatment of diseases developed in stomatognatic system. Several investigator have studied the distribution of tooth contacts in
maximum intercuspation and have repored contact locations with respect to the tooth position. However, there are few report the variation of the occlusal contact point with change in each head position. This study analysed the number of occlusal contact point with change in each head position.30 subject(male 17, female 13), who had natural occlusion and no symptoms of temporomandibular disorder, were selected. The numbers and patterns of tooth contact were recorded by silicone bite registration on stone model at four different head positions with head anguration gauge(from the supine to the position). @ES The results obtained were as follows: @EN 1. The numbers of total occlusal contact point on teeth increased to average 25, 29, 35, 42 points as head angulation was changed from the supine to the upright position against the ala-tragus line, and there was significant difference (P<0.05). 2. In the 19 subject(65%) of 30 subject, the perforated point of the silicone bite indicated that the locus for the prime contact point moved mesially as the head angulation was changed from the supine to the upright position. 3. On the basis of the fact that the anterior occlusal contact point increases as head angulation changed from the supine to the upright position, we could find that the mandibular position is moved anteriorly.
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