Akademik Veri Yönetim Sistemi
Journal of Clinical Dentistry, cilt.14, sa.4, ss.103-107, 2003 (Scopus)
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.