Dental practises is the healing arts concerned with the teeth and associated structures of the oral cavity, including prevention, diagnosis, and treatment of disease and restoration of defective or missing teeth e.g., the restoration of tooth crowns and bridges, root replacements and surgical procedures performed in and about the oral cavity. Dental restorative materials can be used for both long and short term applications. The biomaterials should be biocompatible, bond and match permanently with tooth structure,exhibit similar properties a sthat of tooth enamel and dentin along with other tissues,capable of initiating tissue repair.