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http://dx.doi.org/10.14347/kadt.2017.39.1.1

Comparative evaluation of repeatability of scanning abutment tooth stone model and impression : Applied assessment of CAD/CAM ISO standard in dentistry  

Jeon, Jin-Hun (Department of Dental Technology, Medical Campus, KyungDong University)
Hwang, Seong-Sig (Department of Dental Technology, Medical Campus, KyungDong University)
Kim, Chong-Myeong (Department of Dental Laboratory Science & Engineering, College of Health Science, Korea University)
Kim, Dong-Yeon (Department of Dental Laboratory Science & Engineering, College of Health Science, Korea University)
Kim, Ji-Hwan (Department of Dental Laboratory Science & Engineering, College of Health Science, Korea University)
Kim, Woong-Chul (Department of Dental Laboratory Science & Engineering, College of Health Science, Korea University)
Publication Information
Journal of Technologic Dentistry / v.39, no.1, 2017 , pp. 1-7 More about this Journal
Abstract
Purpose: The purpose of this in vitro study compared to evaluation of repeatability of scanning abutment tooth stone model and impression applied CAD/CAM ISO standard in dentistry. Methods: To evaluate repeatability of scanning abutment tooth stone model, were repeatedly scanned to obtain 11 data via 3D stereolithography (STL) files. 10 data (STL files) were compared with the first 3D data (STL file), and the error sizes were measured by using 3D superimposing software(n=10). Also, the repeatability of scanning abutment tooth impression was evaluated with the same procedure. Independent t test was performed to evaluate the repeatability of scanning abutment tooth stone model versus impression through root mean square(RMS) and standard deviation(SD)(${\alpha}=0.05$). Results: $RMS{\pm}SD$ with regard to repeatability were $14.7{\pm}2.5{\mu}m$, $17.1{\pm}4.0{\mu}m$, respectively, with scanning abutment tooth stone model and impression(p=0.129). Conclusion: This study results showed a little different repeatability of scanning abutment tooth stone model and impression applied CAD/CAM ISO standard in dentistry, will suggest futures good studies and clinical advantages.
Keywords
repeatability; CAD/CAM; color-difference-map; blue light scanner;
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