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KMID : 1004520190350020055
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Journal of Dental Rehabilitation and Applied Science
2019 Volume.35 No. 2 p.55 ~ p.63
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A review on the accuracy assessment methods of 3-dimensional digital dental models
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Park Ji-Su
Lim Young-Jun
Lee Jung-Won
Kim Bong-Ju
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Abstract
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The aim of this article was to review various methods used to evaluate the accuracy of digital dental models. When evaluating the accuracy of digital models, the errors can be reduced by educating examiners and using artificial landmarks. The accuracy evaluation methods of digital dental models are divided into linear measurement, 2-dimensional cross-sectional analysis, and 3-dimensional best fit measurement. As the technology of scanners develops, many studies have been conducted to compare the accuracy of digital impression and conventional impression. According to improvement of scan technologies and development of 3-dimensional model analysis software, the ability to evaluate the accuracy of digital models is becoming more efficient. In this article, we describe the methods for evaluating the accuracy of a digital model and investigate effective accuracy analysis methods for each situation.
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KEYWORD
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intraoral scanner, digital accuracy, linear measurement, cross-sectional analysis, best-fit algorithm
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