Alterations in Human Enamel Surface Morphology Following the Use of an Office Bleaching Agent and Consecutive Application of 37% Phosphoric Acid In Vivo
Journal of Clinical Dentistry, vol.14, no.4, pp.103-107, 2003 (Scopus)
- Publication Type: Article / Article
- Volume: 14 Issue: 4
- Publication Date: 2003
- Journal Name: Journal of Clinical Dentistry
- Journal Indexes: Scopus
- Page Numbers: pp.103-107
- Ankara University Affiliated: Yes
Abstract
Objective: The aim of this in vivo study was to evaluate the effects of a visible light-activated in-office bleaching agent. Opalescence Xtra (35% hydrogen peroxide) on the external enamel surface of human teeth by using scanning electron microscopy (SEM). Methods: The labial surfaces of nine upper incisors from nine different patients were divided into four parts, and a bleaching agent was applied to the mesial halves of the teeth. Three weeks following this treatment, the teeth were extracted and divided into four quadrants. Each quadrant was treated with a different procedure and the samples were examined under SEM. The SEM photographs were blindly evaluated by a jury of four experts. Results: Although there were no statistical differences in the rating of surface morphology of bleached and control groups, the 37% phosphoric acid etched and acid etched + bleached enamel samples demonstrated a statistically significant dissimilar surface morphology (p < 0.05). Conclusion: The bleached + etched enamel treatment showed an uneven etched surface compared to the acid etched control.