Restorative Dentistry and Endodontics

  • 제29권4호
  • /
  • Pages.346-352
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  • 2004
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  • 2234-7658(pISSN)
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  • 2234-7666(eISSN)
대한치과보존학회 (The Korean Academy of Conservative Dentistry)
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광중합형 구치부 수복재료의 중합 수축력과 교두 변위의 상관관계

MEASUREMENTS OF SHRINKAGE STRESS AND REDUCTION OF INTER-CUSPAL DISTANCE IN MAXILLARY PREMOLARS RESULTING FROM POLYMERIZATION OF COMPOSITES AND COMPOMERS

  • 이순영 (연세대학교 치과대학 치과보존학교실) ;
  • 박성호 (연세대학교 치과대학 치과보존학교실)
  • Lee, Soon-Young (Department of Conservative Dentistry, College of Dentistry, Yonsei University) ;
  • Park, Sung-Ho (Department of Conservative Dentistry, College of Dentistry, Yonsei University)
  • 발행 : 2004.07.01
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초록

The purpose of present study was to evaluate the polymerization shrinkage stress and cuspal deflection in maxillary premolars resulting from polymerization shrinkage of composites and compomers. Composites and compomers which were used in this study were as follows: Dyract AP, Z100, Surefil. Pyramid, Synergy Compact, Heliomolar, Heliomolar HB, and Compoglass F. For measuring of polymerization shrinkage stress, Stress measuring machine (R&B, Daejon, Korea) was used. One-way ANOVA analysis with Duncan's multiple comparison test were used to determine significant differences between the materials. For measuring of cuspal deflection of tooth, MOD cavities were prepared in 10 extracted maxillary premolars. And reduction of intercuspal distance was measured by strain measuring machine (R&B, Daejon, Korea) One-way ANOVA analysis with Turkey test were used to determine significant differences between the materials. Polymerization shrinkage stress is $\mathbb{\ulcorner}$Heliomolar, Z100, Pyramid < Synergy Compact Compoglass F < Dyract AP < Heliomolr HB, surefil$\mathbb{\lrcorner}$ (P < 0.05). And cuspal delfelction is $\mathbb{\ulcorner}$Z100, Heliomolar, Heliomolar HB, Synergy Compact Surefil. < Compoglass F < Pyramid, Dyract AP$\mathbb{\lrcorner}$ (P < 0.05). Measurements of ploymerization shrinkage stress and those of cuspal deflection of the teeth was different. There is no correlation between polymerization shrinkage stress and cuspal deflection of the teeth(p > 0.05).

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참고문헌

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피인용 문헌

  1. Correlation between Linear polymerization shrinkage & tooth cuspal deflection vol.30, pp.6, 2005, https://doi.org/10.5395/JKACD.2005.30.6.442
  2. Correlation Between the Amount of Linear Polymerization Shrinkage and Cuspal Deflection vol.31, pp.3, 2006, https://doi.org/10.2341/05-46
  3. The effect of intermittent composite curing on marginal adaptation vol.32, pp.3, 2007, https://doi.org/10.5395/JKACD.2007.32.3.248
  4. Effect of intermittent polymerization on the rate of polymerization shrinkage and cuspal deflection in composite resin vol.33, pp.4, 2008, https://doi.org/10.5395/JKACD.2008.33.4.341