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The surface management of dental porcelain for different dental applications is an important procedure in dentistry. On one hand, we need rough and course surfaces for bonding purposes, and on the other hand, the surface of the dental porcelain needs to be glazed to acquire the best aesthetic appearance and strength. As pores and voids scatter the light and decrease the translucency and may initiate chipping off the material from high-stress points. Mainly the consolidation of the porcelain and elimination of porosity is achieved by sintering. The reduction of porosity is more dependent upon temperature than on time. Therefore, it is possible to attain optimum glazing at a comparatively faster rate by using energy delivery through laser irradiation. In this study, Nd: YAG laser is irradiated on porcelain samples in pellet form. After laser irradiation, a glazed and mechanically improved porcelain surface is obtained with no considerable change in its microstructure.

Evaluation of morphology, hardness and structure of laser exposed dental porcelain