Retention of zirconia copings over smooth and airborne-particle-abraded titanium bases with different resin cements.

Statement Of Problem: How cement type and the surface treatment of a titanium base affect the retention of zirconia copings on titanium bases is unclear.

Purpose: The purpose of this in vitro study was to evaluate the dislodging forces of zirconium oxide copings cemented on implant-supported titanium bases with different luting agents and to examine the influence of airborne-particle abrasion on titanium surfaces.

Material And Methods: Thirty implant laboratory analogs (BioHorizons) were fixed in metal blocks, and 30 prosthetic titanium bases (BioHorizons) were tightened with 35 Ncm of torque.