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Published on: July 30, 2007
A new use for self-etching resin adhesives: cementing bone fragments
A J Ortiz Ruiz1, A Vicente, F Camacho Alonso
1Department of Integral Pediatric Dentistry, University of Murcia, Murcia, Spain.
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+/-0.4 MPa; group C 2.90+/-0.24 MPa; group D 2.10+/-0.17 MPa; group E 4.22+/-0.24 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 limitations of an in vitro investigation, results show that self-etching resin cements together with self-etching adhesives may be used for cementing bone fragments.
