The influence of methacryloxy propyl trimethoxyl silane on shear bond strength of three kinds metal and Filtek resin.
- Author:
Jianhong WANG
1
;
Hui HUANG
;
Fubao ZHANG
;
Lianshui SHI
;
Hongshui ZHU
Author Information
- Publication Type:Journal Article
- MeSH: Chromium Alloys; Composite Resins; Dental Alloys; Dental Bonding; Materials Testing; Shear Strength; Silanes; Surface Properties; Titanium
- From: West China Journal of Stomatology 2012;30(5):535-538
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo study the influence of three different metal alloy surfaces treated with primer methacryloxy propyl trimethoxyl silane (gamma-MPS) coupling agent on the bond strength of Filtek Z350 resin.
METHODSTotal 36 specimens of nickel-chromium(Ni-Cr) alloy, pure titanium(Ti) and aurum-palladium(Au-Pd) alloy, each of 12 pieces produced by lost wax casting method, were divided into 6 groups. After treated with gamma-MPS on the bonding surface, experimental group samples were adhered to Filtek Z350 resin, then compared with the surface without gamma-MPS treatment. The tensile and shear strength of each group tested and the fracture sections were observed with scanning electron microscope (SEM).
RESULTSComparing the Ni-Cr alloy and pure Ti experimental group with them in control group, the shearing strength of the experimental group was higher, and the differences were significant (P < 0.001). The shearing strength of the experimental group and control group of Au-Pd alloy were not significant (P > 0.05). Comparing the experimental groups, the shearing strength of pure Ti was higher than Ni-Cr alloy, both were higher than Au-Pd alloy (P < 0.01). These entire specimens were adhesive fracture. Comparing with the control group, Ni-Cr alloy and pure Ti experimental group showed more resin juts in the fracture surface, while the Au-Pd alloy in experimental group showed less resin juts.
CONCLUSIONgamma-MPS can enhance the adhesion between metal and resin, but it is also related to the metal composition. gamma-MPS can significantly increase the bond strength of resin and Ti or Ni-Cr alloy, but not the case of Au-Pd alloy and resin.