Abstract:

BACKGROUND: High production costs and weak bonding strength of titanium limit the use of titanium porcelain, in order to reduce the cost of titanium porcelain, replace nickel-chromium alloy porcelain repair, and improve security of fixed dental prosthetics. A kind of new titanium-bonding-porcelain powder GGW is produced and the properties are tested.
OBJECTIVE: To test the bond strength of new titanium-bonding-porcelain GGW to cast titanium.
METHODS: A three-point bending test was used according to ISO 9693 and SEM with energy-dispersive spectrometry analysis to evaluate the bond strength of GGW titanium bonding porcelain to cast titanium.
RESULTS AND CONCLUSION: The bond strength of new titanium-bonding-porcelain GGW to cast titanium was higher obviously than that of Super Porcelain TI-22 to cast titanium. GGW titanium experimental bonding porcelain with titanium had chemical reaction, formed by a large number of parallel arrays of layered substructure composed of fracture energy higher crystalling phase organization. Titanium/porcelain rupture occurred in these crystal structure layers, the fracture mode performance for the intergranular and wear crystal mixed form. Titanium-bonding-porcelain GGW has a promising future.