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http://dx.doi.org/10.17135/jdhs.2014.14.3.349

Evaluation of Marginal Gap of Fixed Dental Prostheses Fabricated by Soft Metal Material Using Dental CAD/CAM  

Kim, Jae-Hong (Institute for Health Science, College of Public Health Science, Korea University)
Kim, Won-Soo (Department of Dental Laboratory Technology, Daejeon Health Sciences College)
Kim, Ki-Baek (Institute for Health Science, College of Public Health Science, Korea University)
Publication Information
Journal of dental hygiene science / v.14, no.3, 2014 , pp. 349-355 More about this Journal
Abstract
The purpose of this study was to evaluate marginal gap of fixed dental prostheses (FDPs) fabricated by soft metal material with using dental computer aided design/computer aided manufacturing (CAD/CAM) system and to compare gap of its by a conventional method. Ten same cases of study models were manufactured and scanned for digital models fabricating. Ten FDPs were fabricated by soft metal material using dental CAD/CAM (SMB group). Then, ten FDPs were fabricated by cast metal using lost wax technique and casting method (LWC group). Marginal gap was measured by silicone replica technique. Gap was measured by digital microscope (${\times}160$). Mann-Whitney test for statistical analysis was executed (${\alpha}=0.05$). The mean (standard deviations) of marginal gap was $76.5{\mu}m$ (35.2) for the SMB group, and $82.9{\mu}m$ (22.1) for the LWC group. Statistically significant differences were not found between SMB and LWC. As results, FDPs fabricated by soft metal material were clinically acceptable range.
Keywords
CAD-CAM; Fitness; Soft metal;
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Times Cited By KSCI : 4  (Citation Analysis)
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