구강회복응용과학지 (Journal of Dental Rehabilitation and Applied Science)

  • 제32권4호
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  • Pages.293-300
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  • 2016
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  • 2384-4353(pISSN)
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  • 2384-4272(eISSN)
대한턱관절교합학회 (Korean Academy of Stomatognathic Function and Occlusion)
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임시수복 재료와 본딩제의 화학적 호환성이 전단결합강도에 미치는 영향

Chemical compatibility of interim material and bonding agent on shear bond strength

  • 이종혁 (단국대학교 치과대학 치과보철학교실)
  • Lee, Jonghyuk (Department of Prosthodontics, College of Dentistry, Dankook University)
  • 투고 : 2016.11.28
  • 심사 : 2016.12.19
  • 발행 : 2016.12.30
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초록

목적: 중합방식과 화학적 조성이 다른 본딩제들이 자가중합형 비스아크릴 임시수복 재료의 결합에 미치는 영향을 알아 보고자 하였다. 연구 재료 및 방법: 원반 형태의 비스아크릴 임시수복 재료 시편 40개를 준비한 후 본딩제의 중합특성에 따라 대조군을 포함 4개의 군으로 나누었다. 본딩제 도포 후 직경 4 mm의 원형 구멍을 가진 4 mm 두께의 테플론 몰드를 이용하여 동일한 비스아크릴 임시수복 재료을 첨상하였다. 전단결합강도시험을 시행하였으며 파절면을 현미경으로 관찰하였다. 일원배치 분산분석과 Tukey 사후분석을 사용하여 유의수준 0.05로 검증하였다. 결과: 화학중합형 본딩제를 사용한 군에서 통계적으로 유의한 가장 높은 전단결합강도를 보였으며($27.36{\pm}4.30 MPa$, P < 0.05) 모든 시편에서 비스아크릴 임시수복 재료 내에서 파절이 일어나는 응집성 파절 양상을 보였다(100%). 실험군중 가장 낮은 값은 광중합형 본딩제를 사용한 군에서 기록되었으며($13.29{\pm}2.56 MPa$) 이는 대조군과 거의 유사한 값을 보였다. 동일한 광중합 방식 이지만 화학중합 레진과의 호환성을 높인 본딩제를 사용한 군에서는 광중합형 본딩제를 사용한 군에 비해 통계적으로 유의하게 높은 값을 보였다(P = 0.043). 결론: 본딩제의 종류가 수리된 비스아크릴 임시수복 재료의 전단결합 강도에 영향을 주며, 비스아크릴 임시수복 재료의 수리 시 적절한 본딩제 선택이 중요하다.

Purpose: The purpose of this study is finding proper bonding agents to be used when adding bis-acryl composite provisional materials. Materials and Methods: Three bonding agents with different chemical compositions were included in this study. Forty disk shaped specimens of bis-acryl composite provisional material were prepared and divided into 4 groups according to the bonding agents. Control group didn't have bonding agent. Through the Teflon mould with 4.0 mm diameter hole with 4.0 mm thickness the same bis-acryl composite provisional material was added on the disks after the surface of each specimen was treated with designated bonding agent according to the manufacturer's instructions. Shear bond test was performed and the fractured surfaces were inspected with a microscope. One-way analysis of variance was conducted and the result was further analysed with Turkey post hoc test at the significance level of 0.05. Results: The highest strength was acquired from the specimens bonded with chemical cure system and it was statistically significant (P < 0.05). This group showed 100% cohesive failures. The lowest bonding strength was recorded from the specimens used conventional light cure bonding agent, and this group's result was similar with the control group. The group used a light cure bonding agent claiming improved compatibility revealed significantly higher bond strength to the traditional light cure bonding agent group in a statistically significant way (P = 0.043). Conclusion: According to the bonding agent used the shear bond strength was significantly affected. Therefore the choice of proper bonding agent is important when hiring a bonding agent to add bis-acryl composite provisional materials.

키워드

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