치과보철물 제작시 Sprue 부착 형태가 주조성에 미치는 영향
Influences of Sprue joint Forms on Castability in dental Restorations
최운재, 소정모,
소속 상세정보
최운재 ( Choi Un-Jae ) - 원광보건대학 치기공과
소정모 ( So Jung-Mo ) - 전북대병원 치과진료처 중앙기공실
KMID : 0362120020230020151
Abstract
The purpose of this study was to evaluate the influence of sprue joint form on castability in dental prosthetics. The researcher carried out experimental study according to the type was divided by sprue joint form. Therefore type A was made thicken than sprue diameter of type B and type C was made it conversely. The results were as follows: 1. In the order of castability, type C(87.8%) was first and then type A(87.0%) and type B(79.2%) was last. However there was no significant difference statistically. 2. If reservior was located at the correct position and in sufficient size, internal shrinkage porosity in the casting bodies were not generated in the type of all. 3. At the reservoir, internal shrinkage porosity was generated first in type A, followed by type Band type C in the order named. Although it gives no impact on casting body, porosity seems to appear the least when it’s produced in the form of type C.
키워드
Sprue joint form; castability
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