Vent의 형성이 도재전장 비귀금속합금 주조체의 변연부 적합도에 미치는 영향
The effect of vent on the marginal discrepancy of the PFM base metal castings
김태석, 이성욱, 오세윤, 김웅철, 김지환, 유진호,
소속 상세정보
김태석 ( Kim Tae-Suk ) - 고려대학교 의료원 치과기공실
이성욱 ( Lee Seong-Wook ) - 고려대학교 의료원 치과기공실
오세윤 ( Oh Sae-Yoon ) - 고려대학교 보건과학대학 치기공학과
김웅철 ( Kim Woong-Chul ) - 고려대학교 보건전문대학 치과기공과
김지환 ( Kim Ji-Hwan ) - 고려대학교 보건대학 치과기공과
유진호 ( Yu Chin-Ho ) - 마산대학교 치기공과
KMID : 0362120010230010045
Abstract
This study was performed to investigate the effect of vent on the marginal discrepancy of PFM base metal castings. Eighteen identical wax patterns of a maxillary 3 unit anterior bridge were fabricated. Nine cases out of them were vented with 2.5mm sprue wax, for direct comparison as to the marginal discrepancy of the castings with the other non vented 9 ones. The mean value of marginal discrepancies of the vented castings was , and that of the non vented was respectively. Statistical analysis revealed that marginal discrepancy of the vented casting was significantly reduced(p<0.05).
키워드
Vent; Marginal discrepancy; PFN Base metal
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