디지털 인상 채득 시 흔히 발생하는 오류에 관한 연구 - CEREC AC의 사례 중심으로 -
A study on Common Errors in Digital Impressions: (An Example of CEREC AC)
김재홍, 김지환, 김혜영,
소속 상세정보
김재홍 ( Kim Jae-Hong ) - 고려대학교 대학원 보건과학과
김지환 ( Kim Ji-Hwan ) - 고려대학교 보건과학대학 치기공학과
김혜영 ( Kim Hae-Young ) - 고려대학교 보건과학대학 치기공학과
KMID : 0362120110330030211
Abstract
Purpose: The purpose of the study was a quantitative evaluation of common errors in digital impression procedure using CEREC AC system.
Methods: Two-hundreds digital impression data comprising 174 inlays, 26 onlays by CEREC AC in-office CAD/CAM system were obtained from a dental clinic. One evaluator assessed errors of the digital impression data and divided into five categories of errors: inappropriate scanner positioning (ISP), improper handling with a scanner (IHS), irregular powder arrangement (IPA), improper cavity preparation (ICP), and insufficient scanned data (ISD).
Results: The most common errors were IPA(21%), and ISP and ISD were followed by 17% respectively. IHS was found in 14.5% of all digital impression data. ICP comprising only 6.5% was the rarest.
Conclusion: Most errors were due to inaccurate manipulation with an intraoral scanner or improper cavity preparation for scanning. A deliberate manipulation to prevent common errors mentioned may deliver an optimal result in the digital impression procedure.
키워드
CEREC AC; dental restoration; digital impression; intraoral scanner
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