1. Bleaching of discolored dentine practically considered;Wright;International Dental Journal,1890
2. The removal of stains from the teeth caused by the administration of medicinal agents and bleaching of pulpless teeth;Harlan;American Journal of Dental Science,1884
3. A new combination for bleaching teeth;Nutting;Journal of South California Dental Association,1963
4. A simplified method for bleaching discolored teeth;Cohen;Dental Digest,1968
5. A new method of bleaching discolored teeth by the use of a solid state direct heating device;Hodosh;Dental Digest,1970