Tooth bonding can be used for cosmetic and restorative dental procedures. It is commonly used to create white composite fillings and veneers. Composite fillings mimic the appearance of natural tooth enamel and are an attractive alternative to amalgam fillings, especially for front teeth. The dentist cleans and etches the tooth before applying bonding agent and successive layers of composite material to build up the restoration. While composite fillings have advantages over amalgam, they also have some disadvantages such as higher cost and potential for staining over time.