1. Bleaching of vital or nonvital teeth;Caldwell;J Calif Dent Assoc,1966
2. Change your smile;Goldstein,1984
3. Bleaching teeth;Feinman,1987
4. Nightguard vital bleaching;Haywood;Quintessence International,1989
5. Opalescence Dentist instructions (includes laboratory and patient instructions),1990