대한치과보철학회지 (The Journal of Korean Academy of Prosthodontics)

  • 제52권3호
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  • Pages.195-201
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  • 2014
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  • 0301-2875(pISSN)
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  • 2005-3789(eISSN)
대한치과보철학회 (The Korean Academy of Prosthodonitics)
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즉시 광중합과 지연 광중합이 이원 중합 레진시멘트의 중합 수축량에 미치는 영향

Effects of immediate and delayed light activation on the polymerization shrinkage-strain of dual-cure resin cements

  • 이소연 (서울대학교 치의학대학원) ;
  • 김성훈 (서울대학교 치의학대학원 치과보철학교실) ;
  • 하승룡 (아주대학교 의과대학 치의학과) ;
  • 최유성 (단국대학교 치의학대학원 치과보철학교실) ;
  • 김희경 (중앙보훈병원 치과병원 치과보철과)
  • Lee, So-Yeoun (School of Dentistry, Seoul National University) ;
  • Kim, Sung-Hun (Department of Prosthodontics and Dental Research Institute, School of Dentistry, Seoul National University) ;
  • Ha, Seung-Ryong (Department of Dentistry, School of Medicine, Ajou University) ;
  • Choi, Yu-Sung (Department of Prosthodontics, Dankook University Dental Clinic) ;
  • Kim, Hee-Kyung (Department of Prosthodontics, Veterans Health Service Medical Center Seoul)
  • 투고 : 2014.05.16
  • 심사 : 2014.07.14
  • 발행 : 2014.07.31
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초록

목적: 본 연구에서는 세 가지 중합 방법에 따른 이원 중합 레진 시멘트의 중합 수축률을 비교하고 광조사가 중합 정도에 미치는 영향에 관하여 알아보고자 하였다. 재료 및 방법: 네 가지 종류의 이원 중합형 레진 시멘트(Smartcem 2, Panavia F 2.0, Clearfil SA Luting, Zirconite)가 사용되었다. 각 재료 당 세가지 서로 다른 중합 방법(자가 중합, 즉시 광중합, 5분 지연 광중합)으로 중합하였으며, 각 방법 당 5개의 시편을 사용하였다. Bonded disk method를 사용하여 $37^{\circ}C$에서 30분간, 시간에 따른 중합 수축률을 측정하였다. 측정값은 일원분산분석과 다중 분석을 위한 Scheff$\acute{e}$ test를 사용하였고, 유의수준은 0.05으로 하였다. 결과: Panavia F 2.0를 제외한 나머지 세 종류의 이원 중합 레진 시멘트들은 지연 광중합 반응에서 가장 높은 중합 수축률을 보였다. Panavia F 2.0의 중합 수축률은 중합 방법간에 통계학적 유의성이 없었다. 중합이 개시된 초기 10분 내에 즉시 혹은 지연 광중합에서 모든 시멘트는 90% 이상의 중합수축을 보였다. 결론: 이원 중합 레진 시멘트의 지연 광중합이 중합 효율을 높인다.

Purpose: This study was designed to compare the amount of polymerization shrinkage of dual-cure resin cements according to different polymerization modes and to determine the effect of light activation on the degree of polymerization. Materials and methods: Four kinds of dual-cure resin cements were investigated: Smartcem 2, Panavia F 2.0, Clearfil SA Luting and Zirconite. Each material was tested in three different polymerization modes: self-polymerization only, immediate light polymerization and 5 minutes-delayed light polymerization. The time-dependent polymerization shrinkage-strain was evaluated for 30 minutes by Bonded-disk method at $37^{\circ}C$. Five recordings of each material with three different modes were taken. Data were analyzed using one-way ANOVA and multiple comparison Scheffe′test (${\alpha}$=.05). Results: All materials, except Panavia F 2.0, exhibited the highest polymerization shrinkage-strain through delayed light-activated polymerization. No significant difference between light activation modes was found with Panavia F 2.0. All materials exhibited more than 90% of polymerization rate in the immediate or delayed light activated group within 10 minutes. Conclusion: As a clinical implication of this study, the application of delayed light activation mode to dual-cure resin cements is advantageous in terms of degree of polymerization.

키워드

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피인용 문헌

  1. Effect of activation modes on the compressive strength, diametral tensile strength and microhardness of dual-cured self-adhesive resin cements vol.35, pp.2, 2016, https://doi.org/10.4012/dmj.2015-056