Methods: Sixty-four zirconia blocks were embedded and wet ground. The surfaces were either exposed to atmospheric plasma or remained untreated (n=32). Subsequently, surfaces were coated with one of two experimental liquids (ExpB: Bis-GMA/TEDMA/acetone; ExpB-4M: ExpB+4-META) or Alloy Primer including a control. Variolink II was bonded to the surfaces and a SBS-test performed after 8 days water-storage (37°C). Data was subjected to parametric statistics (α=.05).
Results: The use of adhesive monomers (Alloy Primer, ExpB-4M) significantly increased SBS (p<0.05). PT strongly affected SBS (p<0.05).
Conclusions: PT was not able to increase SBS under the applied conditions. Adhesive monomers are mandatory to bond to zirconia.
Keywords: Adhesion, Biomaterials, Cements and Polymers
See more of: Dental Materials 1: Adhesion - Bond Strength Testing and Mechanisms