Effect of surface treatments on the bond strength of a resin cement to commercially pure titanium.
Investigation of the effectiveness of surface treatments that promote a strong bond strength of resin cements to metals can contribute significantly to the longevity of metal-ceramic restorations. This study evaluated the effect of surface treatments on the shear bond strength (SBS) of a resin cement to commercially pure titanium (CP Ti). Ninety cast CP Ti discs were divided into 3 groups (n=30), which received one of the following airborne-particle abrasion conditions: (1) 50 microm Al(2)O(3) particles; (2) 30 microm silica-modified Al(2)O(3) particles (Cojet Sand); (3) 110 microm silica-modified Al(2)O(3) particles (Rocatec). For each airborne-particle abrasion condition, the following post-airborne-particle abrasion treatments were used (n=10): (1) none; (2) adhesive Adper Single Bond 2; (3) silane RelyX Ceramic Primer. RelyX ARC resin cement was bonded to CP Ti surfaces. All specimens were thermally cycled before being tested in shear mode. Failure mode was determined. The best association was Rocatec plus silane. All groups showed 100% adhesive failure. There were combinations that promote higher SBS than the protocol recommended by the manufacturer of RelyX ARC.
de Almeida-Júnior
Antonio Alves
AA
Department of Dental Materials and Prosthodontics, Araraquara Dental School, São Paulo State University, Araraquara, SP, Brazil.
Fonseca
Renata Garcia
RG
Haneda
Isabella Gagliardi
IG
Abi-Rached
Filipe de Oliveira
Fde O
Adabo
Gelson Luis
GL
D020906:Air Abrasion, Dental / Q000379:methods*; D000704:Analysis of Variance; D001840:Dental Bonding; D017005:Dental Debonding; D019232:Dental Restoration Failure; D003793:Dental Restoration, Permanent / Q000379:methods; D003799:Dental Stress Analysis; D006801:Humans; D010316:Particle Size; D019279:Resin Cements / Q000737:chemistry*; D033081:Shear Strength; D018709:Statistics, Nonparametric; D013314:Stress, Mechanical; D013499:Surface Properties; D014025:Titanium / Q000737:chemistry*
D019279:Resin Cements; D014025:Titanium