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Evaluation of mechanical properties of several dual-cure resin cements by curing modes

중합방법에 따른 여러 이중중합 레진 시멘트의 기계적 성질 평가

  • Kim, Soo-Yeon (Department of Conservative Dentistry, College of Dentistry, Gangneung-Wonju National University) ;
  • Park, Se-Hee (Department of Conservative Dentistry, College of Dentistry, Gangneung-Wonju National University) ;
  • Kim, Jin-Woo (Department of Conservative Dentistry, College of Dentistry, Gangneung-Wonju National University) ;
  • Cho, Kyung-Mo (Department of Conservative Dentistry, College of Dentistry, Gangneung-Wonju National University)
  • 김수연 (강릉원주대학교 치과대학 치과보존학교실) ;
  • 박세희 (강릉원주대학교 치과대학 치과보존학교실) ;
  • 김진우 (강릉원주대학교 치과대학 치과보존학교실) ;
  • 조경모 (강릉원주대학교 치과대학 치과보존학교실)
  • Received : 2014.10.27
  • Accepted : 2015.01.08
  • Published : 2015.03.31

Abstract

Purpose: The purpose of this study was to evaluate the mechanical properties of several dual-cure cements by different curing modes. Materials and Methods: One resin-modified glass ionomer cement (FujiCEM 2), two conventional dual-cure resin cements (RelyX ARC, Multilink N), and two dual-cure self-adhesive resin cements (RelyX U200, G-CEM LinkAce) were used. To evaluate the influence of the curing methods, each cements divided into four conditions (n = 20); Condition 1: self-curing for 10 minutes, Condition 2: immediate after 20 seconds light-curing, Condition 3: 24 hours after self-curing, Condition 4: 24 hours after light-curing. The compressive strength and diametral tensile strength were measured with a universal testing machine. All data were statistically analyzed using t-test, one-way ANOVA and Scheffe's test. Results: The results showed the compressive strength and diametral tensile strength after 24 hours in all curing modes were higher than immediate except RelyX ARC light-cured and Multilink N light-cured. The FujiCEM 2 showed lowest values (P < 0.05). Conclusion: The outcome was cement-depend, but there is no significant difference about compressive strength and diametral tensile strength between dual-cure self-adhesive resin cements and conventional resin cements. And this result will be used as a base line data selecting resin cement for favorable long-term prognosis.

Acknowledgement

Supported by : 강릉원주대학교

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