Microleakage and bond strength analysis of zirconia-reinforced fiber posts using different resin cements in endodontically treated teeth.

Microleakage and push-out bond strength of zirconia-reinforced fiber posts cemented with three resin cement systems in endodontically treated maxillary central incisors is of interest. Ninety extracted teeth were divided into three groups based on the use of self-adhesive, self-etch and conventional total-etch resin cements. Self-adhesive resin cements showed the least microleakage, indicating superior sealing ability. Total-etch systems exhibited the highest push-out bond strength, particularly in coronal regions. Bond strength decreased progressively from coronal to apical regions across all cement groups.