Repository of Research and Investigative Information

Repository of Research and Investigative Information

Hormozgan University of Medical Sciences

Effect of three nanobiomaterials on microhardness of bleached enamel

(2016) Effect of three nanobiomaterials on microhardness of bleached enamel. Restorative dentistry & endodontics.

[img]
Preview
Text
rde-41-196.pdf

Download (504kB) | Preview

Official URL: https://www.ncbi.nlm.nih.gov/pubmed/?term=Effect+o...

Abstract

OBJECTIVES The aim of this in vitro study was to evaluate the effect of incorporating three different nanobiomaterials into bleaching material on microhardness of bleached enamel. MATERIALS AND METHODS The crowns of 24 extracted sound human molars were sectioned. Sixty enamel specimens (2 × 3 × 4 mm) were selected and divided into five groups (n = 12): Group 1 received no bleaching procedure (control); Group 2 underwent bleaching with a 40% hydrogen peroxide (HP) gel; Groups 3, 4, and 5 were bleached with a 40% HP gel modified by incorporation of bioactive glass (BAG), amorphous calcium phosphate (ACP) and hydroxyapatite (HA), respectively. The enamel microhardness was evaluated. The differences in Knoop microhardness data of each group were analyzed by one-way ANOVA, followed by post hoc Tukey tests. RESULTS Significant differences were observed between the study groups. The enamel microhardness changes in Groups 1, 3, 4, and 5 were significantly lower than that of Group 2 (p < 0.001). CONCLUSIONS Within the limitations of this study, it can be concluded that incorporation of each one of the three tested biomaterials as remineralizing agents might be effective in decreasing enamel microhardness changes subsequent to in-office bleaching.

Item Type: Article
Keywords: Amorphous calcium phosphate,Bioactive glass,Bleaching,Enamel,Hardness,Hydroxyapatite
Subjects: WU Dentistry. Oral Surgery > WU 100-113.7 Anatomy. Physiology. Hygiene
Depositing User: مهندس هدی فهیم پور
URI: http://eprints.hums.ac.ir/id/eprint/4710

Actions (login required)

View Item View Item