Objective: To study the stomatological feasibility of low-fusing porcelain fused to Ti-75 alloy.
Methods: Electroprobemicroanalysis (EPMA) and shear test were used to observe interface state and bonding strength of porcelain titanium.
Results: Shear bond strengths of low-fusing porcelain with Ti-75 alloy and conventional porcelain each fused to metal (NC-VMK68) were 47.38 ± 7.95 MPa and 48.50 ± 7.60 MPa, respectively. There was no significant difference between the shear bonding strength of low-fusing porcelain with Ti-75 and that of conventional porcelain fused to metal (PFM) (P > 0.05). EPMA showed that Ti-75 alloy and low-fusing porcelain bound tightly, had no fissure, and that low-fusing porcelain had good infiltration to Ti-75. It was shown that Ti spread from Ti-75 basal body into porcelain, and elements such as Si-Sn spread from porcelain to Ti-75.
Conclusion: Ti-75 alloy can be used stomatologically, as a porcelain alloy.