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http://dx.doi.org/10.14347/kadt.2015.37.1.1

Evaluation of marginal and internal gap of wax coping fabricated by CAD/CAM system using intraoral scanner  

Kim, Dong-Yeon (Department of Dental Laboratory Science & Engineering, College of Health Science, Korea University)
Jung, Il-Do (Department of Dental Laboratory Science & Engineering, College of Health Science, Korea University)
Lee, Jae-Jun (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, Myung-Bae (Korea academy of CAD/CAM Dental technology)
Kim, Woong-Chul (Department of Dental Laboratory Science & Engineering, College of Health Science, Korea University)
Publication Information
Journal of Technologic Dentistry / v.37, no.1, 2015 , pp. 1-7 More about this Journal
Abstract
Purpose: The aim of this study was to evaluate the marginal and internal gap of wax copings fabricated from extraoral scanning with intraoral scanning. Methods: Fifteen study models(abutment of teeth 16) were made by PMMA. STL files of thirty abutment were prepared by intraoral scanning with extraoral scanning. Wax copings of thirty fabricated using CAD/CAM system. Marginal and internal gap of wax copings of thirty were measured by silicone replica technique and digital microscope(${\times}140$). Date were analyzed by using independent samples t-test. Results: Mean (SD) of two group were measured $55.61(27.42){\mu}m$ for totally gap of ES group and $60.67(33.14){\mu}m$ for totally gap of IS group. But marginal and internal gap of two group were not differences statistically significant(p>0.05). Conclusion: Evaluation of marginal and internal gap of two group showed that no differences statistically significant and clinically acceptable results.
Keywords
marginal and internal gap; CEREC AC Omnicam; intraoral scanning; extraoral scannering; CAD/CAM system; wax coping;
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