The aesthetically pleasing tooth is restored to its original function. Composite fillings are newer than amalgam fillings and are constantly improving. The composite resin is about the consistency of modelling clay. Composite restorations have a natural tooth-like appearance and can be used on all teeth. Composite fillings bond directly to the tooth structure, reducing the risk of leakage. Through a series of chemical reactions, the composite resin hardens into a very strong material that looks very much like a natural tooth.