백색광과 청색 LED 방식의 광학스캐너로 채득된 디지털 모형의 비교분석
Comparative analysis on digital models obtained by white light and blue LED optical scanners
최석순, 김재홍, 김지환,
소속 상세정보
최석순 ( Choi Seog-Sun ) - 신구대학교 치기공과
김재홍 ( Kim Jae-Hong ) - 고려대학교 대학원 보건과학과
김지환 ( Kim Ji-Hwan ) - 고려대학교 대학원 보건과학과
KMID : 0362120140360010017
Abstract
Purpose: The purpose of this study was to analyze and compare the relative accuracy of digitized stone models of lower full arch, using two different scanning system.
Methods: Replica stone models(N=20) were produced from lower arch acrylic model. Twenty digital models were made with the white light and blue LED(Medit , Korea) scanner. Two-dimensional distance between the landmarks were measured on the Delcam CopyCAD (Delcam plc, UK). Independent samples t-test was applied for comparison of the groups. All statistical analyses were performed using the SPSS software package (Statistical Package for Social Sciences for Windows, version 12.0).
Results: The absolute disagreement between measurements made directly on the two different scanner- based dental digital models was 0.02~0.04mm, and was not statistically significant(P>0.05).
Conclusion: The precision of the blue LED optical scanner was comparable with the digitization device, and relative accuracy was similar. However, there still is room for improvement and further standardization of dental CAD technologies.
키워드
blue LED; optical scanner; relative accuracy; white light
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