PUA’s Faculty of Dentistry proudly celebrated the awarding of a Master’s Degree in Prosthodontics and Dental Implants to Dr. Mahmoud Mohamed Mahmoud Bayoumi. This recognition followed the defense of his research titled: “Effect of Air Borne Practical Abrasion on The Bond Strength of Customized Two-Piece Zirconia Implant Abutment to Zirconia Superstructure” (In-Vitro Study).

This study aimed to evaluate the effect of aerobic corrosion by aluminum oxide (Al₂O₃) particles on the bond strength between two-piece zirconia abutments and zirconia crowns fabricated using CAD/CAM technology with a self-adhesive resin mortar containing a methacryloxidediyl dihydrogen phosphate (MDP) primer.

Sixteen two-piece zirconia abutments were fabricated using pre-measured titanium bases, which were then mounted on custom-designed zirconia crowns using EXO-CAD software, according to the required standard dimensions for the titanium base. Sixteen dental implants were placed in sixteen acrylic resin blocks to receive the zirconia hybrid abutments