A CLINICAL STUDY ON THE OCCLUSAL CONTACT PATTERN IN CENTRIC AND ECCENTRIC OCCLUSION

Yang,  Jae-Ho

J Korean Dent Assoc > Volume 22(10); 1984 > Article

The Journal of The Korean Dental Association 1984;22(10):869-877.
Published online October 31, 1984.

중심교합 및 비중심위교합에서의 치아접촉유형에 관한 임상적 연구

양재호

서울대학교 치과대학 보철학교실

A CLINICAL STUDY ON THE OCCLUSAL CONTACT PATTERN IN CENTRIC AND ECCENTRIC OCCLUSION

Jae-Ho Yang

Dept. of Prosthodontics, College of Dentistry, Seoul National University

Abstract

An objective examination of 123 subjects aged from 19 to 23 was made from a clinical standpoints to determine the natural occurrence in anterior tooth contact in centric occlusion, and tooth contact in protrusive occlusion, left and right lateral excursions, and temporomandibular dysfunction. 1. In centric occlusion, maxillary 6 anterior contact type was frequently observe (30.08%) compared with other types of contact (incisor contact: 19.47%, no contact: 17.70%, canine and incisor contact: 15.04%, canines contact: 12.39%, unilateral canine contact: 5.31%) (P<0.01) 2. In protrusive position (edge to edge bite), maxillary central incisors contact was predominant (86.7%). (P<0.01) 3. In lateral excursion, there was not any significant difference between canine guided occlusion (47.79%) and group function occlusion (total 51.32%, AG:9.29%, PG:13.27%, G:28.76%). 4. Temporomandibular joint dysfunction was observed in 12.4% of 123 subjects.