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http://dx.doi.org/10.17135/jdhs.2015.15.2.196

Evaluation of Marginal Gap of Three Unit Metal Cores Fabricated by 3-Dimensional Printing Technique  

Kim, Jae-Hong (Institute for Health Science, College of Public Health Science, Korea University)
Kim, Won-Soo (Department of Dental Laboratory Technology, School of Health Science, Daejeon Health Institute Technology)
Kim, Ki-Baek (Institute for Health Science, College of Public Health Science, Korea University)
Publication Information
Journal of dental hygiene science / v.15, no.2, 2015 , pp. 196-201 More about this Journal
Abstract
The purpose of this study was to evaluate marginal gap of 3 unit fixed dental prostheses (FDPs) fabricated by 3-dimensional (3D) printing technology and to compare marginal gap of its by a conventional method (lost wax technique and casting method). Ten study models were manufactured. Three unit FDPs were fabricated by 3D printing technique (3D group) and conventional methods (CV group). Marginal gaps were measured by silicone replica technique and digital microscope (${\times}160$). Mann-Whitney test was executed (${\alpha}=0.05$). The mean${\pm}$standard deviation of marginal gap for premolars and molars were $112.5{\pm}8.6{\mu}m$ and $110.2{\pm}7.0{\mu}m$ in the 3D group and $83.2{\pm}4.4{\mu}m$ and $82.2{\pm}4.6{\mu}m$ in the CV group. There were statistically significant differences (p<0.05). As results, clinical application further improvement of 3D printing technique may be required.
Keywords
Three-dimensional printing; Computer-aided design; Marginal adaptation;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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