Journal of Conservative Dentistry
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Year : 2003  |  Volume : 6  |  Issue : 3  |  Page : 99-102

Effects Of Hydrogen Peroxide Containing Bleaching Agents On The Morphology Of Human Enamel



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T Sowjanya


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The effect of three Bleaching Agents (Opalscence, 30% H2O2 and 30% H2O2 mixed with Sodium Perborate) and 37% Phosphoric acid on the external surface of Human enamel were examined with the scanning Electronic Microscope. The materials were applied to the enamel surfaces of 50 specimens obtained for 10 teeth. Each test agent was applied to one specimen from each tooth. One specimen of each tooth was left untreated. Comparison to the untreated control surfaces revealed that enamel exposed to the bleaching agents underwent slight Morphologic Surface alterations. The enamel surfaces treated with Phosphoric Acid, in contrast showed severe Morphologic alterations.


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