Combining chemical agents and techniques to remove intrinsic stains from vital teeth

Hydrochloric acid, hydrogen peroxide, and carbamide peroxide are chemical agents currently used to remove a variety of intrinsic stains from vital teeth. Because none of these agents is effective in treating all tooth discolorations, approaches that use combinations of the agents can be helpful in extending the range of their effectiveness. Selection of the appropriate chemical stain removing agent is discussed and situations in which a combination of agents and techniques have proved to be more successful than a single agent approach are described.