CERECⓡ system에서 사용하는 세라믹 소재로 가공된 CAD/CAM 전부도재관의 변연간격 비교분석
Comparison of marginal gap of monolithic CAD/CAM-generated crowns according to the ceramic materials for CERECⓡ system
김재홍, 김기백, 김사학,
소속 상세정보
김재홍 ( Kim Jae-Hong ) - 경동대학교 치기공학과
김기백 ( Kim Ki-Baek ) - 고려대학교 보건과학연구소
김사학 ( Kim Sa-Hak ) - 경동대학교 치기공학과
KMID : 0362120160380030119
Abstract
Purpose: The purpose of this study is to evaluate the marginal gap of all-ceramic crowns fabricated by CERECⓡ in-office CAD/CAM system.
Methods: The mandibular first molar was selected as the abutment for the experiments. Thirty working models were prepared. VITA Mark Ⅱ(VM) and VITA Enamic(VE), LAVA Ultimate(LU) blocks were milled using CEREC MCXL with CEREC 3D system to construct 10 crowns for each groups. To measure marginal gap, milled restorations were examined under digital microscope with scale under 160x magnifications. The results were statistically analyzed using the one-way ANOVA and Tukey’s HSD test(α=0.05).
Results: There was no significant difference in the marginal gap regarding to ceramic materials (p>0.05).
Conclusion: Single crowns fabricated using CEREC in-office CAD/CAM system provided clinically acceptable marginal gap. This confirmed that the type of ceramic material used does not determine the precision of fit of a prosthesis.
키워드
All-ceramic; CEREC; in-office CAD/CAM; Marginal gap
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