Can universal adhesive systems bond to zirconia?

Objective: To measure the bond strength to zirconia subjected to different surface treatments of universal bonding agents.

Materials And Methods: Eighty blocks of zirconia were obtained by CAD/CAM milling. The blocks were embedded into PVC tubes, polished sequentially with increasing granulation sandpapers and divided into two groups according to surface treatment: polished or grit-blasted with alumina particles.

Pre-treating dentin with chlorhexadine and CPP-ACP: self-etching and universal adhesive systems.

The aim of the present study was to compare the effect of pre-treating dentin with chlorhexidine, at concentrations of 0.2% and 2%, and remineralizing paste containing CPP-ACP (MI Paste - GC) on the bond strength of adhesive systems. In total, 80 slides of dentin were used.