다른 스캐닝 방법으로 제작된 리튬 디실리케이트 단관의 변연 및 내면 적합도 평가
Evaluation of the marginal and internal fit of lithium disilicate crowns fabricated by different scanning methods
김재홍, 김웅철, 김지환,
소속 상세정보
김재홍 ( Kim Jae-Hong ) - 고려대학교 일반대학원 보건과학과 치의기공전공
김웅철 ( Kim Woong-Chul ) - 고려대학교 일반대학원 보건과학과 치의기공전공
김지환 ( Kim Ji-Hwan ) - 고려대학교 일반대학원 보건과학과 치의기공전공
KMID : 0362120140360020075
Abstract
Purpose: This study was to compare adaptations of lithium disilicate CAD/CAM crowns fabricated with different scanning systems.
Methods: This study selected the mandibular right first molar as an abutment for experiments and produced 10 working models. Lithium disilicate crowns appropriate for each abutment were produced by using a CEREC CAD/CAM system. The independent t-test was then used to compare and analyze the data obtained from the two groups(a=0.05).
Results: Mean(SD) adaptation were 86.93(22.82)um for the InS group, 88.42(26.77)um for the ExS group. They were no statistically significant differences between groups for adaptation(p>0.05).
Conclusion: Within the limitations of this study, the results suggest that the accuracy of all investigated optical scanner were satisfactory for clinical use. Further assessment and improvement of the lithium disilicate ceramic for the fabrication of FPDs is evidently still required.
키워드
All ceramic restoration;Optical scanner;Marginal and internal fit;Silicone replica technique
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