Preparation and Characterization of LAS Glass Based Materials for Dental Applications

Glass ceramic materials are widely used in dental application because of their strong
similarity with natural teeth. In this study LAS glass ceramic/glass materials were prepared by
glazing processing and characterized in terms of mechanical flexural strength. The selected glass
ceramic support derives from an industrial process. Different glasses were applied to the glass
ceramic support in order to investigate firstly their effect on the glass ceramic/glass interface and
secondly how these structural changes are correlated to the flexural strength property. Different
thermal cycles were applied to the glass ceramic in order to promote the increasing of mechanical
flexural strength. Preliminary results clearly points out that the application of a glass on the support
leads to the decrease of the flexural strength if compared to the materials without any coating
applied.