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http://dx.doi.org/10.14347/jtd.2022.44.3.76

Comparison of polymerization by time of light curing for dental 3D printing  

Kim, Dong-Yeon (Dentrion)
Lee, Gwang-Young (Department of Dental Laboratory Technology, Wonkwang Health Science University)
Publication Information
Journal of Technologic Dentistry / v.44, no.3, 2022 , pp. 76-80 More about this Journal
Abstract
Purpose: The purpose of this study is to analyze the depth according to curing using photocurable resin for dental three-dimensional printing. Methods: A stainless mold with a height of 4 mm was prepared. Ultraviolet (UV) polymerization resin was injected into the mold. Photocuring was then performed for 5 minutes using a photopolymerizer, and the height was measured using a digital measuring instrument (first group). Second, light polymerization was also performed outside the mold for 5 minutes, and the height was measured using a digital measuring instrument. Third, light polymerization was further performed for 5 minutes, and the height was measured using a digital measuring instrument. Statistical analysis was performed with the Kruskal-Wallis test, which is a nonparametric test (α=0.05). Results: The third group had the largest measurement length, whereas the first group had the smallest. However, the difference between groups was not statistically significant (p>0.05). The color of the first group was different from that of the second and third groups. Conclusion: All of the 4-mm-thick photocured specimens had a curing reaction, but the part that was not directly irradiated with UV did not show its original color.
Keywords
Computer-aided design; Computer-aided manufacturing; Photopolymer; Thickness; Three-dimensional printing; Ultraviolet;
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Times Cited By KSCI : 10  (Citation Analysis)
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