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유리단 국소의치의 전치유도 및 심미성에 관한 연구
A Study of anterior guidance and estheticsin distal extension removable partial denture

구강생물학연구 1990년 14권 1호 p.21 ~ 36

계기성, 이규칠, 박상윤, 유진영,

소속 상세정보

계기성 ( Kay Kee-Sung ) - 조선대학교 치과대학 치과보철학교실
이규칠 ( Lee Kyu-Chil ) - 조선대학교 치과대학 보철학교실
박상윤 ( Park Sang-Yoon ) - 조선대학교 치과대학 보철학교실
유진영 ( Lew Jin-Young ) - 조선대학교 치과대학 보철학교실

KMID : 0353319900140010021

Abstract

Authors had the patient wear the upper and lower temporary restoration by which the vetical dimension was raised using the remaining lower removable partial denture for about 4 weeks to evaluate the sign and symptom of temporomandibular joint and the equilibration of the masticatory muscle for the patient who had `a lost vertical dimension caused by not wearing upper and lower removable partial denture for a long time.
The inirpose of this clinical study was to evaluate and provide anterior guidance and esthetics by raising and restoring the vertical dimension lost in the past using the remaining lower removable partial denture.
The anterior guidance, in connection with centric relation and vertical dimension, must be regarded as the most important factor in reconstructing the stomatognatic system. The information for the posterior and anterior tooth morphology can be attained solely through the anterior guidance and clinical observation. In the presence of a functional anterior
guidance, the recording of the condylar path is unnecessary. The only information which is obtained through the pantographic system is one form o_ a posterior tooth morphology which relates to the TMJ anatomy.
The anterior guidance, however, with its influence on the lingual contours of the maxillary anterior teeth and in connection with other factors, will more or less determine the position and length of the anterior teeth. Its effect on tooth configuration is more obvious-with the posterior teeth. The height and incline of the cusps and the depth of the central fossae are dependent on the steepness or flatness and length of the anterior guidance path.
Therefore, one can conclude that in the presence of an anterior disocclusion, the occlusal morphology can be determined by the anterior guidance system and clinical observation.
From this clinical study, the good results were obtained phonetically, functionally and esthetically by the replacement of the porcelain fused to metal bridge of the upper 1st bicuspids and the upper and lower anterior teeth after an appropriate anterior guidance was established first and then by the delivery of the conventional upper removable partial denture and the lover removable partial denture using key and keyway attachment.