Effect of surface treatments on the bond strength of a resin cement to commercially pure titanium

Brazilian Dental Journal

Antonio Alves De Almeida-júnior¹  Renata Garcia Fonseca¹  Isabella Gagliardi Haneda¹  Filipe De Oliveira Abi-rached¹  Gelson Luis Adabo¹ 

[1] ,São Paulo State University, Araraquara Dental School Department of Dental Materials and ProsthodonticsAraraquara SP ,Brazil

关键词: resin cement;    titanium;    surface treatment;    silica coating;    airborne-particle abrasion;   

DOI  :  10.1590/S0103-64402010000200004

来源: SciELO

【 摘 要 】

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 ?m Al2O3 particles; (2) 30 ?m silica-modified Al2O3 particles (Cojet Sand); (3) 110 ?m silica-modified Al2O3 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.

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License