摘要

Objectives To evaluate the bond capacities of four self-etching resin cements and the self-etching adhesives of the same manufacturer when used to cement bone fragments and compare them with a well-known N-butyl-2-cyanoacrylate bone adhesive Methods 125 cylindrical bone specimens from pig mandibular ramus bone were prepared using terphane burs and cemented to the corticals of 125 other specimens obtained from pig mandibular body bone using the following bond systems Group A Adper PLP/Relyx, group B Optibond/Maxcem, group C Hystoacryl, group D AdheSE/Multilink, group E G-Bond/G-Cem Shear bond strength was measured 15 min after cement application using a universal testing machine Results Shear bond strength results group A 2 54 +/- 0 23 MPa, group B 4 83 +/- 04 MPa, group C 290 +/- 024 MPa, group D 2 10 +/- 017 MPa, group E 422 +/- 024 MPa Values for shear bond strength were significantly greater for group B and E compared to groups A, C and D (p < 0 005, test Mann-Whitney) SEM images showed the presence of a hybrid layer similar to that formed by these bond systems when used on dentine Conclusion Within the limita

  • 出版日期2010-9