The Journal of Korean Academy of Prosthodontics (대한치과보철학회지)

The Korean Academy of Prosthodonitics (대한치과보철학회)
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Shear bond strength of Universal bonding systems to Ni-Cr alloy

니켈-크롬 합금에 대한 다용도 접착 시스템의 전단결합강도

  • Song, So-Yeon (Department of Biomedical Science, Graduate School of Korea University) ;
  • Son, Byung-Wha (Department of Biomedical Science, Graduate School of Korea University) ;
  • Kim, Jong-Yeob (Department of Prosthodontics, Korea University, Institute for Clinical Dental Research, Korea University Medical Center) ;
  • Shin, Sang-Wan (Department of Prosthodontics, Korea University, Institute for Clinical Dental Research, Korea University Medical Center) ;
  • Lee, Jeong-Yol (Department of Prosthodontics, Korea University, Institute for Clinical Dental Research, Korea University Medical Center)
  • 송소연 (고려대학교 대학원 의과학과) ;
  • 손병화 (고려대학교 대학원 의과학과) ;
  • 김종엽 (고려대학교 구로병원 치과보철과, 임상치의학연구소) ;
  • 신상완 (고려대학교 구로병원 치과보철과, 임상치의학연구소) ;
  • 이정열 (고려대학교 구로병원 치과보철과, 임상치의학연구소)
  • Received : 2015.05.26
  • Accepted : 2015.07.21
  • Published : 2015.10.30
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Abstract

Purpose: The aim of this study was to evaluate the shear bond strength between Ni-Cr alloy and composite resin using universal adhesive systems coMPared to conventional method using metal primers. Materials and methods: For this study, a total of 120 cast commercial Ni-Cr alloy (Vera Bond 2V) disks were embedded in acrylic resin, and their surfaces were smoothed with silicon carbide papers and airborne-particle abrasion. Specimens of each metal were divided into 6 groups based on the combination of metal primers (Metal primer II, Alloy primer, Metal & Zirconia primer, MKZ primer) and universal adhesive systems (Single Bond Universal, All Bond Universal). All specimens were stored in distilled water at $37^{\circ}C$ for 24 hours. Shear bond strength testing was performed with a universal testing machine at a cross head speed of 1 m/min. Data (MPa) were analyzed using one-way ANOVA and the post hoc Tukey's multiple comparison test (${\alpha}$=.05). Results: There were significant differences between Single Bond Universal, All Bond Universal, Metal Primer II and Alloy Primer, MKZ Primer, Metal & Zirconia Primer (P<.001). Conclusion: Universal Adhesive system groups indicated high shear bond strength value bonded to Ni-Cr alloy than that of conventional system groups using primers except Metal Primer II. Within the limitations of this study, improvement of universal adhesive systems which can be applied to all types of restorations is recommended especially non-precious metal alloy. More research is needed to evaluate the effect of silane inclusion or exclusion in universal adhesive systems.

목적: 레진과 니켈-크롬 합금의 결합력에 미치는 금속 프라이머 및 다용도 접착제의 영향에 대하여 비교 평가하고자 한다. 재료 및 방법: 실험을 위해 120개의 니켈-크롬 합금(Vera Bond 2V) 디스크를 제작하여 아크릴 레진 실린더에 포매하였다. 시편의 표면은 220 grit, 600 grit의 실리콘 카바이드지로 연마한 뒤 $50{\mu}m$의 알루미늄옥사이드 입자를 분사하여 처리하였다. 실험군은 메탈 프라이머의 적용(Metal primer II, Alloy primer, Metal & Zirconia primer, MKZ primer)과 다용도 접착 시스템(Single Bond Universal, All Bond Universal)에 따라 6개 군으로 나뉘었다. 각 시편의 중앙에 높이 2 mm, 직경 3 mm로 복합레진을 충전하였으며, 제작된 모든 시편은 $37^{\circ}C$ 증류수에서 24시간 보관하였다. 만능시험기에 시편을 위치시킨 후 1 mm/min cross head speed로 전단결합강도를 측정하였다. 통계분석은0.05의 유의수준으로 일원분산분석을 시행하였고 Tukey's multiple coMParison test로 사후검정을 하였다. 결과: Single Bond Universal, All Bond Universal, Metal Primer II 3개 군과 Alloy Primer, MKZ Primer, Metal & Zirconia Primer 3개 군 사이에 통계학적으로 유의한 차이를 보였다(P<.001). 결론: 니켈-크롬 합금에 대한 다용도 접착 시스템의 전단결합강도는 Metal Primer II를 제외한 기존의 금속 프라이머를 적용했을 때 보다 높게 나타났다. 본 실험에서 더 나아가 다용도 접착 시스템 내 실란(Silane) 포함 여부에 따른 효과를 평가할 수 있는 연구가 필요할 것이다.

Keywords

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