Three-point bending strength of ceramics fused to cast titanium |
| |
Authors: | Lothar Prö bster,Uwe Maiwald,Heiner Weber |
| |
Affiliation: | Department of Prosthetic Dentistry, Eberhard-Karls-University, Tübingen, Germany |
| |
Abstract: | Titanium requires special ceramic systems for veneering. This study compared the three-point bending strength of three commercially available titanium ceramic systems with a NiCr-alloy with conventional ceramics. Three-point bend specimens 25 × 5 × 0.5 mm were cast from polyethylene patterns. After α-case removal, they were veneered with 8 × 5 × 1 mm of ceramics at the center of the bar. Specimens were tested in a universal testing machine without ageing, after thermocycling, and after 90 d storage in an electrolyte solution. Titanium-ceramic systems were found to have a significantly lower bond strength in comparison to the NiCr-ceramic system. One of the titanium ceramic systems had a significantly lower bond strength in comparison to the other systems investigated. It could be concluded that bonding between titanium and ceramics is obtainable; however, the achievable bond strengths did not match the NiCr-ceramic control. |
| |
Keywords: | bond strength ceramics three-point bending strength titanium veneer |
|
|