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Tytuł:
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Evaluation of the measurement precision and accuracy in the dental CAD/CAM system.
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Autorzy:
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Okawa T; Department of Comprehensive Dentistry, Tokushima University Graduate School.
Abe S; Department of Comprehensive Dentistry, Tokushima University Graduate School.
Nakano M; School of Oral Health Sciences, Faculty of Health and Welfare, Tokushima Bunri University.
Oka K; Department of Oral Care and Clinical Education, Tokushima University Hospital.
Horikawa E; Department of Comprehensive Dentistry, Tokushima University Graduate School.
Matsuka Y; Department of Stomatognathic Function and Occlusal Reconstruction, Tokushima University Graduate School.
Kawano F; Department of Comprehensive Dentistry, Tokushima University Graduate School.
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Źródło:
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Dental materials journal [Dent Mater J] 2020 Sep 29; Vol. 39 (5), pp. 784-791. Date of Electronic Publication: 2020 May 12.
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Typ publikacji:
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Journal Article
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Język:
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English
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Imprint Name(s):
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Original Publication: Tokyo-to : Japanese Society for Dental Materials and Devices, [1982?-
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MeSH Terms:
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Computer-Aided Design*
Reproducibility of Results
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Contributed Indexing:
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Keywords: CAD/CAM; Digitization of occlusal contact; Lateral border movement; Measurement accuracy; Reproducibility
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Entry Date(s):
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Date Created: 20200515 Date Completed: 20201002 Latest Revision: 20201002
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Update Code:
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20240105
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DOI:
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10.4012/dmj.2019-157
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PMID:
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32404562
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The purpose of this study is to investigate the precision and trueness of the occlusal contact record obtained with a dental CAD/CAM device (ARCTICA). Sandblasted spherical steel balls with diameters of 10-20 mm were measured using ARCTICA and a three-dimensional measurement device (FN503). The radius of each steel ball was calculated from the measured value and the difference between the measured and nominal values was obtained. Upper/lower dental arch casts were measured and processed for occlusal contact image creation using both devices. The graphical images of the occlusal contacts at the intercuspal position obtained from both systems and an occlusal analysis device (BE-1) were compared with the occlusal contact area. Excellent correlation was observed between the measurement results of ARCTICA and FN503 (p<0.001, R 2 : 0.99). The occlusal contact areas were 186.0 mm 2 (ARCTICA), 192.8 mm 2 (FN503), and 196.1 mm 2 (BE-1). This study showed that ARCTICA is capable of conducting highly accurate measurements and generating a graphical image of occlusal contacts with good reliability.
