Adhesive bonding to polymer infiltrated ceramic

作者：Schwenter Judith; Schmidli Fredy; Weiger Roland; Fischer Jens^*

来源：Dental Materials Journal, 2016, 35(5): 796-802.

DOI：10.4012/dmj.2015-271

• Polymer infiltrated ceramic
• Hybrid ceramic
• Shear bond strength
• Cement
• Surface pre-treatment

Aim of this study was to investigate the mechanism of adhesive bonding to the polymer-infiltrated ceramic VITA Enamic [VE]. Shear bond strength was measured with three resin composite cements: RelyX Unicem 2 Automix, Clearfil SA and Variolink II on polished surfaces of VE and its components silicate ceramic [SC] and polymer [PM] (n,=12). Further, the effect of etching VE with 5% HF for 15-240 s and the application of silane coupling agents was analyzed in a screening test (n=6). Shear bond strength measurements were performed after 24 h of water storage at 37 C. Significant bonding to polished substrates could only be achieved on VE and SC when silane coupling agents were used. Etching of VE with 5% HF increased shear bond strength. Following silanization of etched VE, a further increase in shear bond strength could be established. Etching for more than 30 s did not improve shear bond strength.

• 出版日期2016-10