Three-point bending strength of ceramics fused to cast titanium.
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 x 5 x 0.5 mm were cast from polyethylene patterns. After alpha-case removal, they were veneered with 8 x 5 x 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 bonds strengths did not match the NiCr-ceramic control.
Pröbster
L
L
Department of Prosthetic Dentistry, Eberhard-Karls-University, Tübingen, Germany.
Maiwald
U
U
Weber
H
H
D000704:Analysis of Variance; D002516:Ceramics / Q000737:chemistry*; D002858:Chromium Alloys / Q000737:chemistry; D001840:Dental Bonding; D003799:Dental Stress Analysis / Q000295:instrumentation; D003801:Dental Veneers; D004548:Elasticity; D004573:Electrolytes / Q000737:chemistry; D008422:Materials Testing / Q000295:instrumentation; D016876:Metal Ceramic Alloys / Q000737:chemistry; D018583:Pliability; D011095:Polyethylenes; D013314:Stress, Mechanical; D013499:Surface Properties; D013696:Temperature; D014025:Titanium / Q000737:chemistry*
D002858:Chromium Alloys; D004573:Electrolytes; D016876:Metal Ceramic Alloys; D011095:Polyethylenes; D014025:Titanium