关键词: 牙齿漂白, 过氧化物, 活性氧

Abstract:

Summary：The basic pharmaceutical ingredients of teeth bleaching is peroxide （hydrogen peroxide， carbamide peroxide），activated by being placed on the surface of dental hard tissue or pulp cavity in non-myelinated discolored teeth to achieve whitening results. The mechanism of the bleaching is hidden doctrine（the color of the teeth surface and the change of the refraction rate）and the penetration theory（reactive oxygen can split the long-chain dark color of molecules into the light color short-chain molecules）. Proper use of bleaching technology has reliable security，which changes tooth color without endangering the dental hard tissue in aesthetic area. Bleaching effect is positive，but results can differ due to varied causes of discoloration and individual tooth structure. The article gives a periodic review， which is based on the history and current development of the tooth bleaching technology，including the bleaching history，bleach principle，analysis of discoloration，indications，bleaching method，the effect of the evaluation，and security. In our research，we hope to achieve the effect of a refresher. So as to tooth bleaching technology and to serve the patients better.

Key words: tooth bleaching；peroxide；reactive oxygen