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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2019.1
- 수록면
- 263 - 269 (7page)
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초록· 키워드
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Purpose: The purpose of this study was to evaluate the internal fitness of prostheses fabricated with non-contact extraoral scanner and those fabricated with intra-oral video scanner, with a comparative accuracy analyses of their precision and trueness. Methods: A polymethyl methacrylate (PMMA) model was fabricated by replicating a master model. The prostheses in the first group were fabricated based on the PMMA model with an intra-oral video scanner (IVS group). Following the fabrication of work models with Type IV Stone that were based on the PMMA model, the prostheses in the second group were fabricated with a non-contact extra-oral scanner (ENB group). The precision and trueness of the prostheses were calculated from comparisons of the three-dimensional images of the internal surfaces of the prostheses and those of the master model. Kruskal-Wallis tests were used to determine the statistical significance, with the level of type 1 error set at 0.05. Results: Trueness (P < 0.009) and precision (P < 0.001) did not differ significantly between the ENB and IVS groups. The IVS group exhibited lower trueness values and larger precision values than the ENB group. Conclusion: Although no significant differences were found in the internal fitness of the prostheses that were fabricated by the two different scanners, the intraoral video scanner-fabricated prostheses had better trueness, whereas the non-contact extra-oral scanner-fabricated prostheses had better precision.
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등록된 정보가 없습니다.
참고문헌 (18)
참고문헌 신청
Beuer F / 2008 / Digital dentistry : anoverview ofrecent developments for CAD/CAM generated restorations / Br Dental J 204(9):505~511
Brosky ME / 2002 / Laser digitization of casts to determine the effect of tray selection and cast formation technique on accuracy / J Prosthet Dent 87(2):204~209
Christensen GJ / 2008 / Will digital impressions eliminate the current problems with conventional impressions / J Am Dent Assoc 139(6):761~763
Christensen GJ / 2009 / Impressions are changing: deciding on conventional, digital or digital plus in-office milling / J Am Dent Assoc 140(10):1301~1304
Ender A / 2013 / Accuracy of completearch dental impressions: a new method of measuring trueness and precision / J Prosthet Dent 109(2):121~128
Brosky ME / 2002 / Laser digitization of casts to determine the effect of tray selection and cast formation technique on accuracy / J Prosthet Dent 87(2):204~209
Christensen GJ / 2008 / Will digital impressions eliminate the current problems with conventional impressions / J Am Dent Assoc 139(6):761~763
Christensen GJ / 2009 / Impressions are changing: deciding on conventional, digital or digital plus in-office milling / J Am Dent Assoc 140(10):1301~1304
Ender A / 2013 / Accuracy of completearch dental impressions: a new method of measuring trueness and precision / J Prosthet Dent 109(2):121~128
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