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Glass Fiber Post와 Composite Resin Core의 전단결합강도
A STUDY FOR THE BONDING STRENGTH OF COMPOSITE RESIN CORE TO GLASS FIBER POST

김태형   (연세대학교 치과대학 치과보철학교실UU0000936  ); 심준성   (연세대학교 치과대학 치과보철학교실UU0000936  ); 이근우   (연세대학교 치과대학 치과보철학교실UU0000936  );
  • 초록

    Statement of problem : Fracture of composite resin core will be occulted by progress of crack. Bonding interface of different materials has large possibility of starting point of crack line. Therefore, the bond strength of glass fiber post to composite resin core is important for prevention of fracture. Purpose: This in vitro study tried to find out how to get the higher strength of glass fiber post to composite resin core through surveying the maximum load that fractures the post and cote complex. Materials and methods: 40 specimens made with glass fiber Posts(Style $post^{(R)}$ , Metalor, Swiss) and composite resin core ( $Z-100^{(R)}$ , 3M, USA) were prepared and loaded to failure with push-out type shear-bond strength test in a universal test machine. The maximum fracture load and fracture mode were investigated in the specimens that were restored with four different surface treatments. With the data. ANOVA test was used to validate the significance between the test groups, and Bonferroni method was used to check if there is any significant statistical difference between each test group. Evely analysis was approved with 95% reliance. Results: On measuring the maximum fracture load of specimens, both the treatments of sandblasted and acid-etched one statistically showed the strength increase rather than the control group (p


  • 주제어

    Glass fiber post .   Surface treatment .   Bond strength.  

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