ALICE MURARIU, ROXANA VASLUIANU, LAVINIA MATRICALA, IULIANA STOICA, NORINA CONSUELA FORNA<br>In vitro Evaluation of Morphological Integrity of Dental Enamel Exposed to Carbamide Peroxide-based Bleaching Agent

ALICE MURARIU, ROXANA VASLUIANU, LAVINIA MATRICALA, IULIANA STOICA, NORINA CONSUELA FORNA
In vitro Evaluation of Morphological Integrity of Dental Enamel Exposed to Carbamide Peroxide-based Bleaching Agent

Abstract:

This article presents the effect of the bleaching above the enamel of the teeth using three fundamental approaches for bleaching non vital teeth. Our purpose is to assess the effects of the carbamide peroxide on the structure of the tooth enamel at different concentrations and to check if the destructive effects are important at low concentrations. In order to asses the morphological and topographical modifications of the whitening treatment, the three samples (incisor, premolar, molar) were analyzed with a Scanning Electron Microscope, type Quanta 200 (FEI Company). More detailed morphological aspects of the samples before and after the whitening treatment were analysed using a Scanning Probe Microscope (Solver PRO-M, NTMDT, Russia) and various tridimensional statistical parameters were calculated from the AFM measurements. Significantly higher 3D roughness parameters indicate that the surfaces were more irregular, because the demineralization process of the enamel, exhibiting numerous and deeper peaks and valleys. Keywords: bleaching teeth, SEM, AFM, carbamide peroxide

Issue: 2016, Volume 67, Issue 10

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