CAN THE OPAQUE PORCELAIN AND DENTIN PORCELAIN BE SUBSTITUTED IN TITANIUM-PORCELAIN PROSTHETIC?

摘要

Due to the biocompatibility, mechanical strength and esthetics properties, titanium-porcelain prosthetic plays an important role in prosthodontics. However, weak bonding strength and considerable thickness of the porcelain restrict its application. Whether we can find a method to increase the bonding strength and reduce the thickness of the porcelain is an acute problem. In this study, ceramic coatings with similar color of nature teeth are fabricated on the surface of pure titanium by micro-arc oxidation (MAO). The colors, thickness and bonding strength of the coatings can be controlled by adding ferrous sulfate into the electrolytes. These new coatings can be used in titanium-porcelain prosthetic to substitute the opaque and dentin porcelain which can enhance the bonding strength and decrease the thickness of the porcelain compared with the conventional technique.