품질경영학회지 (Journal of Korean Society for Quality Management)

  • 제45권4호
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  • Pages.995-1002
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  • 2017
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  • 1229-1889(pISSN)
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  • 2287-9005(eISSN)
한국품질경영학회 (Korean Society for Quality Management)
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동요치 고정에 사용되는 복합레진의 색품질 평가

Color quality evaluation of composite resins used for splinting teeth

  • 정지혜 (원광대학교 치과대학 치과보철학교실) ;
  • 천경준 (전남대학교 치의학전문대학원 치의학과) ;
  • 오용희 (대진대학교 산업공학과) ;
  • 장훈상 (전남대학교 치의학전문대학원 치과보존학교실)
  • Jung, Ji-Hye (Department of Prosthodontics, College of Dentistry, Wonkwang University) ;
  • Cheon, Kyeong Jun (Department of Dental Science, School of Dentistry, Chonnam National University) ;
  • Oh, Yonghui (Department of Industrial Engineering, Daejin University) ;
  • Chang, Hoon-Sang (Department of Conservative Dentistry, School of Dentistry, Chonnam National University)
  • 투고 : 2017.11.24
  • 심사 : 2017.12.06
  • 발행 : 2017.12.31
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초록

Purpose: The purpose of this study was to evaluate the color stability of composite resins used for splinting teeth by comparing a self-cure resin cement (Superbond C&B, SB), a flowable composite resin (G-aenial Universal Flo A2, GU), and a composite resin exclusively used for splinting teeth (G-Fix, GF) before and after aging in NaOCl. Methods: Resin samples were fabricated to a size of 2 mm thickness and 8.5 mm diameter and light-cured with an LED light curing unit (G-Light, n = 12). Immediately after fabrication, CIE L*a*b* values of the resin samples were measured with a spectrophotometer (CM-5) as baseline. Then, the resin samples were immersed in 5% NaOCl at $60^{\circ}C$ and the color was measured after 23 hours every day for 4 days. Data were analyzed with one-way ANOVA followed by Duncan post hoc test (p<0.05), and color differences (${\Delta}E$) of resin samples before and after NaOCl aging were also calculated. Results: For SB, there were no changes in L* and a* values but changes were observed in b* values. For GU, there were no changes in L* and b* values but in a* values. For GF, changes were observed in L*, a*, and b* values. All resin samples showed highest ${\Delta}E$ between baseline and the 1st day of NaOCl immersion. ${\Delta}E$ of SB, GU, and GF was 4.6 - 5.8, 4.9 - 7.9, and 9.9 - 16.9, respectively. GF showed highest color change during NaOCl aging. Conclusion: The results of this color quality evaluation showed that the composite resin exclusively used for splinting teeth might be more vulnerable to color change during intraoral service.

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