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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)
- Other Titles
- A study on Common Errors in Digital Impressions: (An Example of CEREC AC)
- Issue Date
- 2011
- Publisher
- 대한치과기공학회
- Keywords
- CEREC AC; dental restoration; digital impression; intraoral scanner
- Citation
- 대한치과기공학회지, v.33, no.3, pp.211 - 218
- Indexed
- KCI
OTHER
- Journal Title
- 대한치과기공학회지
- Volume
- 33
- Number
- 3
- Start Page
- 211
- End Page
- 218
- ISSN
- 1229-3954
- 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.
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