원문정보
Comparison of marginal gap of monolithic CAD/CAM-generated crowns according to the ceramic materials for CERECⓇ system
초록
영어
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.
목차
Ⅰ. 서론
Ⅱ. 연구 방법
1. 실험 재료
2. 실험 방법
3. 통계분석
Ⅲ. 결과
Ⅳ. 고찰
Ⅴ. 결론
REFERENCES