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논문 기본 정보

자료유형
학술저널
저자정보
Sibel Cetik (Erasmus Hospital Université Libre de Bruxelles Brussels Belgium) Babak Bahrami (aculty of Medicine Université Libre de Bruxelles Brussels Belgium) Ines Fossoyeux (Erasmus Hospital Université Libre de Bruxelles Brussels Belgium) Ramin Atash (Erasmus Hospital Université Libre de Bruxelles Brussels Belgium)
저널정보
대한치과보철학회 The Journal of Advanced of Prosthodontics The Journal of Advanced of Prosthodontics 제9권 제3호
발행연도
2017.6
수록면
208 - 216 (9page)
DOI
https://doi.org/10.4047/jap.2017.9.3.208

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PURPOSE. The aim of this study was to compare the precision of optical impression (Trios, 3Shape) versus that of conventional impression (Imprint IV, 3M-ESPE) with three different margins (shoulder, chamfer, and knife-edge) on Frasaco teeth. MATERIALS AND METHODS. The sample comprised of 60 zirconia half-crowns, divided into six groups according to the type of impression and margin. Scanning electron microscopy enabled us to analyze the gap between the zirconia crowns and the Frasaco teeth, using ImageJ software, based on eight reproducible and standardized measuring points. RESULTS. No statistically significant difference was found between conventional impressions and optical impressions, except for two of the eight points. A statistically significant difference was observed between the three margin types; the chamfer and knife-edge finishing lines appeared to offer better adaptation results than the shoulder margin. CONCLUSION. Zirconia crowns created from optical impression and those created from conventional impression present similar adaptation. While offering identical results, the former have many advantages. In view of our findings, we believe the chamfer margin should be favored.

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