Fracture resistance of all ceramic crowns supported by zirconia and alumina versus titanium implant abutments

Conclusion All types of implant-supported restorations tested have the potential to withstand physiologic occlusal forces applied in the premolar region (450N). Unfavorable fracture occurred in eight Al2O3 specimens indicated unfavorable behavior of this material after aging.
Source: Tanta Dental Journal - Category: Dentistry Source Type: research