Conventional dentistry is more damaging in tooth preparations of crowns and fillings. Conventional dentistry relies on the tooth being cut to a specific shape to help retain a crown or filling. With biomimetic dentistry, we rely more on the strength of the adhesive bond to the tooth, so far less natural tooth is removed. In fact the process is so conservative that the only reason a crown is used is to replace an old one that has failed. Instead we use either a structurally reinforced white filling or a ceramic overlay that is just bonded to the biting surface of the tooth. The ceramic material is most like natural enamel in both elasticity and wear.