인상 스캐닝 방법에 의해 제작된 디지털 치과 모형의 체적안정성 평가
Evaluation of Dimensional Stability of Digital Dental Model Fabricated by Impression Scanning Method
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참고문헌
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초록
The purpose of this study in vitro investigation was to evaluate the dimensional stability of dental digital models made by impression scanningmethod. Twenty working models were produced. Twenty impressions were made from study models. The dimensional stability of models of twogroups (stone and digital models) was examined using six landmark distances. Stone models were measured through digital vernier calipers. Digitalmodels were measured by the computer program. Statistical analyses were performed with Wilcoxon rank sum test (α=0.05). The mean of sixlandmark distances were significantly larger in the stone models than in the digital models (p＜0.05) but digital models showed clinically acceptableaccuracy.
Abstract
The purpose of this study in vitro investigation was to evaluate the dimensional stability of dental digital models made by impression scanningmethod. Twenty working models were produced. Twenty impressions were made from study models. The dimensional stability of models of twogroups (stone and digital models) was examined using six landmark distances. Stone models were measured through digital vernier calipers. Digitalmodels were measured by the computer program. Statistical analyses were performed with Wilcoxon rank sum test (α=0.05). The mean of sixlandmark distances were significantly larger in the stone models than in the digital models (p＜0.05) but digital models showed clinically acceptableaccuracy.
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