Journal of the korean academy of Pediatric Dentistry (대한소아치과학회지)

Korean Academy of Pediatric Dentistry (대한소아치과학회)
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An Evaluation of Shear Bond Strength of New Dentin Bonding Agents

최근 소개된 상아질 접착제의 전단 접착 강도 비교

  • Shin, Jisun (Department of Pediatric Dentistry, School of Dentistry, Dankook University) ;
  • Hwang, Eunji (Department of Preventive Dentistry, School of Dentistry, Dankook University) ;
  • Kim, Jongbin (Department of Pediatric Dentistry, School of Dentistry, Dankook University)
  • 신지선 (단국대학교 치과대학 소아치과학교실) ;
  • 황은지 (단국대학교 치과대학 예방치과학교실) ;
  • 김종빈 (단국대학교 치과대학 소아치과학교실)
  • Received : 2017.07.21
  • Accepted : 2017.08.08
  • Published : 2017.08.31
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Abstract

For the purpose of convenience and reducing time, newer bonding agents have been developed for composite resin restoration. Recently developed one bottle bonding system including etching, primer and adhesive can make procedures simpler and less technique-sensitive than old generation adhesives. The aim of this study was comparing the shear bond strength of new dentin bonding agents to the 5th generation bonding agent which had an etching step. 78 premolar teeth were randomly divided into three groups which were treated with $Tetric^{(R)}$ N-Bond Universal (Ivoclar Vivadent, Liechtenstein), $GC^{(R)}$ G-Premio BOND (GC Co., Japan) without additional etching step and $3M^{TM}$ Single Bond2 (3M ESPE, USA) with an etching step following manufacturer's instructions. $Filtek^{TM}$ Z-350 (3M ESPE, USA) composite resin was applied and light cured over bonding agents. For shear bond strength evaluation, universal testing machine was used with a wedge technique. As a result, shear bond strength of one step bonding agents was lower than two step bonding agent and there were statistically significant differences between them (p < 0.05). In addition, within the result of two new bonding agents, $Tetric^{(R)}$ N-Bond Universal showed significantly higher shear bond strength than $GC^{(R)}$ G-Premio BOND (p < 0.05).

소아치과 영역에서 수복 치료에 널리 쓰이는 레진 치료의 술식 민감성 및 시간 감소에 대한 꾸준한 노력으로 새로운 접착제의 개발이 이루어지고 있는데 최근 출시된 접착제와 기존에 널리 쓰이는 두 단계 접착제와 비교 분석하여 임상적으로 적용하기에 어떠할지 평가해 보고자 하였다. 본 연구에서는 78개의 건전한 소구치를 3군으로 나누어 순면 법랑질에 새로 개발된 $Tetric^{(R)}$ N-Bond Universal (Ivoclar Vivadent, Liechtenstein)과 $GC^{(R)}$ G-Premio BOND (GC Co., Japan)를 실험군으로 하고 기존의 5세대 $3M^{TM}$ Single Bond2 (3M ESPE, USA)를 대조군으로 설정하여 동일하게 $Filtek^{TM}$ Z-350 (3M ESPE, USA)복합 레진을 접착시킨 후 접착제에 따른 전단접착강도를 비교 평가하였다. 그 결과 산부식 과정을 따로 적용하지 않은 두 실험군에서 각각의 전단접착강도가 산부식 과정을 포함한 대조군의 결과보다 통계학적으로 유의성 있게 낮은 결과를 나타내었다. 또한 새로 개발된 두 접착제간 비교에서는 $Tetric^{(R)}$ N-Bond Universal 제품이 $GC^{(R)}$ G-Premio BOND 제품보다 전단 접착 강도가 유의성 있게 큰 것으로 나타나 임상에서 제품을 선택할 때 참조할 수 있을 것으로 생각된다.

Keywords

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