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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 대한치과보철학회 The Journal of Advanced of Prosthodontics The Journal of Advanced of Prosthodontics 제8권 제3호
- 발행연도
- 2016.1
- 수록면
- 214 - 218 (5page)
이용수
초록· 키워드
오류제보하기
PURPOSE. We assessed the repeatability and reproducibility of abutment teeth dental impressions, digitized with a blue light scanner, by comparing the discrepancies in repeatability and reproducibility values for different types of abutment teeth.
MATERIALS AND METHODS. To evaluate repeatability, impressions of the canine, first premolar, and first molar, prepared for ceramic crowns, were repeatedly scanned to acquire 5 sets of 3-dimensional data via stereolithography (STL) files. Point clouds were compared and the error sizes were measured (n=10, per type). To evaluate reproducibility, the impressions were rotated by 10-20° on the table and scanned. These data were compared to the first STL data and the error sizes were measured (n=5, per type). Oneway analysis of variance was used to assess the repeatability and reproducibility of the 3 types of teeth, and Tukey honest significant differences (HSD) multiple comparison test was used for post hoc comparisons (α=.05).
RESULTS. The differences with regard to repeatability were 4.5, 2.7, and 3.1 μm for the canine, premolar, and molar, indicating the poorest repeatability for the canine (P<.001). For reproducibility, the differences were 6.6, 5.8, and 11.0 μm indicating the poorest reproducibility for the molar (P=.007).
CONCLUSION. Our results indicated that impressions of individual abutment teeth, digitized with a blue light scanner, had good repeatability and reproducibility.
목차
등록된 정보가 없습니다.
참고문헌 (21)
참고문헌 신청
Nedelcu RG / 2014 / Scanning accuracy and precision in 4 intraoral scanners: an in vitro comparison based on 3-dimensional analysis / J Prosthet Dent 112:1461~1471
Persson A / 2006 / A three-dimensional evaluation of a laser scanner and a touchprobe scanner / J Prosthet Dent 95:194~200
전진훈 / 2014 / Accuracy of 3D white light scanning of abutment teeth impressions: evaluation of trueness and precision / The Journal of Advanced of Prosthodontics 6(6):468~473
Quaas S / 2007 / Direct mechanical data acquisition of dental impressions for the manufacturing of CAD/CAM restorations / J Dent 35:903~908
전진훈 / 2013 / White light scanner-based repeatability of 3-dimensional digitizing of silicon rubber abutment teeth impressions / The Journal of Advanced of Prosthodontics 5(4):452~456
Persson A / 2006 / A three-dimensional evaluation of a laser scanner and a touchprobe scanner / J Prosthet Dent 95:194~200
전진훈 / 2014 / Accuracy of 3D white light scanning of abutment teeth impressions: evaluation of trueness and precision / The Journal of Advanced of Prosthodontics 6(6):468~473
Quaas S / 2007 / Direct mechanical data acquisition of dental impressions for the manufacturing of CAD/CAM restorations / J Dent 35:903~908
전진훈 / 2013 / White light scanner-based repeatability of 3-dimensional digitizing of silicon rubber abutment teeth impressions / The Journal of Advanced of Prosthodontics 5(4):452~456
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