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밀링 방법으로 제작한 레진과 지르코니아 3본 브릿지 모델의 3차원 분석을 이용한 재현성 비교

Other Titles
 Comparison of Reproducibility of Milled Acrylic Resin and Zirconia Models for 3-unit bridge Using Three-dimensional Analysis 
 박강석  ;  김성균  ;  허성주  ;  곽재영  ;  박지만  ;  안진수  ;  서덕규 
 Implantology, Vol.22(3) : 130-138, 2018 
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Issue Date
Zirconia ; Milled acrylic resin ; Three-dimensional analysis ; Reproducibilit
Purpose: The objective of this study was to investigate the reproducibility of milled acrylic resin and zirconia models using three-dimensional analysis. Material and Methods: Zirconia discs and acrylic resin blocks were milled to make models. Each model was scanned with a model scanner. The zirconia models were superimposed with other zirconia model, and the acrylic resin models were superimposed with other acrylic resin model threedimensionally. Root-mean-square (RMS) values were obtained. Distances between two superimposed models were measured. Statistical significances were tested using the Mann-Whitney U test and t-test. Results: The RMS values of the zirconia model and the acrylic resin model were not significantly different ( p ≥0.05). At the premolar site, distances between the zirconia models at the upper axial and at the lower axial wall were significantly smaller than for the acrylic resin models ( p <0.05). At the molar site, distance between the zirconia models at the lower axial wall was significantly smaller than for the acrylic resin models ( p <0.05). Conclusion: Although there is a difference in reproducibility between the milled acrylic resin model and the zirconia model in the localized region, no significant difference was found in the whole model.
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2. College of Dentistry (치과대학) > Dept. of Prosthodontics (보철과학교실) > 1. Journal Papers
Yonsei Authors
Park, Ji-Man(박지만) ORCID logo https://orcid.org/0000-0003-0018-1166
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