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Micro-shear bond strength of resin-modified glass ionomer and resin-based adhesives to dentin

상아질 위치에 따른 접착성 수복재의 미세전단결합강도에 관한 연구

  • Hong, Hyun-Kyung (Department of Conservative Dentistry, Division of Dentistry, Graduate School of Kyung Hee University) ;
  • Choi, Kyoung-Kyu (Department of Conservative Dentistry, Division of Dentistry, Graduate School of Kyung Hee University) ;
  • Park, Sang-Hyuk (Department of Conservative Dentistry, Division of Dentistry, Graduate School of Kyung Hee University) ;
  • Park, Sang-Jin (Department of Conservative Dentistry, Division of Dentistry, Graduate School of Kyung Hee University)
  • 홍현경 (경희대학교 대학원 치의학과 치과보존학교실) ;
  • 최경규 (경희대학교 대학원 치의학과 치과보존학교실) ;
  • 박상혁 (경희대학교 대학원 치의학과 치과보존학교실) ;
  • 박상진 (경희대학교 대학원 치의학과 치과보존학교실)
  • Published : 2003.07.01

Abstract

이 연구의 목적은 수종 상아질 접착 시스템과 복합 레진 및 resin-modified glass ionomer를 상아질 표면에 접착하여 재료 및 상아질내 위치에 따른 미세전단결합강도를 측정, 비교하는 것이다. 상아질 접착 시스템으로는, 3-step인 Scotchbond Multi-Purpose Plus, 2-step인 Single Bond와 자가 부식형 시스템인 Clearfil SE Bond를, 1-step인 Prompt L-Pop을 사용하였다. 이와 함께 hybrid type의 복합 레진인 Clearfil AP-X와 2250을 사용하였으며 resin-modified glass ionomer로는 Fuji II LC를 사용하였다. 상악 소구치를 치아의 근원심 중앙부를 절단하여 상아질면을 노출시켰다. 5개 실험군으로 분류하고 상아질면을 위치에 따라 치관부의 occlusal $\frac{1}{3}$, middle $\frac{1}{3}$, cervical $\frac{1}{3}$과 치근부로 구분지어 시편을 부착하였다. 미세전단결합강도측정는 Universal testing machine(EZ-test; Shimadzu, Japan)에서 측정하였다. Occlusal 1/3부위에서는 SE가 가장 높은 값을, SM과 SB간에는 유의차가 없었으며, PL, GI순으로, Middle 1/3부위에서는 $SM{\;}{\geq}{\;}SE{\;}{\geq}{\;}SB{\;}{\geq}{\;}PL{\;}{\geq}{\;}GI$순으로, cervical 1/3부위에서는 SM, SE, SB간에 유의차가 없었다. Root dentin에서는 SM이 가장 높은 값을 보였으며 SE, PL, GI간에 유의차가 없었다. SE만이 치관부 상아질에 비해 치근부에서 유의할만한 결합강도의 감소를 나타냈다(p<0.05). GI는 치관부 상아질에서는 다른 군에 비해 유의성 있게 낮은 결합강도를 보였으나 치근부에서는 SE, PL과 유의차가 없었다.

Keywords

References

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