The Effect of Heating on Silanization in Ceramic Bonding

Methods: An one-component silane coupling agent (Ceramic Primer, 3M ESPE, USA) and a two-component one (Porcelain Liner M, Sun Medical Co, Japan) were applied onto the surface of ceramic (VMK95, VITA, Germany), respectively. The silanized ceramic were divided into 5 groups and heated at 20, 40, 60, 80 and 100 °C for 5 min, respectively. Then, an adhesive (Single-Bond, 3M ESPE, USA) combined with a light-cured composite resin (Z100, 3M ESPE, USA) were applied onto the ceramic surface. The shear bond strengths between ceramic and composite resin were measured. Statistical analysis was performed by using one-way and two-way ANOVA (a=0.05).

Results: Heating at 60 °C during silanization generated the best effect for both of the two kind of silane coupling agents. The bond strengths between ceramic and composite resin were improved as temperature increased from 20 to 60 °C; the bond strengths were decreased as temperature increased from 60 to 100 °C.

Conclusion: Proper heating during the process of silanization could improve the bond strength between ceramic and composite resin, and the heat temperature should be less than the boiling point of silanes.