title: [Evaluation of bond strength of three resin cements on CAD/CAM ceramic-dentin].
abstract: OBJECTIVE
  To evaluate the bond strength of 3 resin cements on ceramic-dentin.
  
  
  METHODS
  Thirty sound human posterior tooth were selected for this study and the flat dentin surfaces were prepared. The specimens were divided into 3 groups(n=10) randomly, which were bonded to the CAD/CAM ceramics with RelyX ARC(etch-and-rinse adhesive), Clearfil DC Bond(self-etching resin cement) and RelyX Unicem(self-adhesive resin cement). The bond strengths were tested and the bond surfaces were observed under stereoscopic microscope.SPSS 11.0 software package was used for statistical analysis.
  
  
  RESULTS
  The shear bond strength of RelyX ARC and Clearfil DC Bond was (15.90±6.15)MPa and (14.41±5.07)MPa, respectively. The shear strength of RelyX Unicem was(23.29±7.39)MPa, significantly higher than the others.The shear strength between the three resin cements was significantly different (P<0.05).
  
  
  CONCLUSIONS
  Clearfil DC Bond and RelyX Unicem can achieve a successful bond on CAD/CAM ceramic crowns.
authors.affiliation: Department of Prosthodontics, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
authors.forename: Ke-wu
authors.initials: KW
authors.lastname: Guo
authors.forename: Wei-min
authors.initials: WM
authors.lastname: Weng
authors.forename: Bao-wei
authors.initials: BW
authors.lastname: Zhang
mesh_terms: D017438:Bisphenol A-Glycidyl Methacrylate; D002516:Ceramics; D001840:Dental Bonding; D003776:Dental Porcelain; D003804:Dentin; D017220:Dentin-Bonding Agents; D006801:Humans; D008422:Materials Testing; D011092:Polyethylene Glycols; D011109:Polymethacrylic Acids; D011897:Random Allocation; D019279:Resin Cements; D033081:Shear Strength
chemical_list: D017220:Dentin-Bonding Agents; D011109:Polymethacrylic Acids; C462240:RelyX ARC; D019279:Resin Cements; D003776:Dental Porcelain; C095998:Adhesive cement; D011092:Polyethylene Glycols; D017438:Bisphenol A-Glycidyl Methacrylate