Korean Journal of Dental Materials 2018;45(1):1-10

doi:10.14815/kjdm.2018.45.1.1

Effects of Bioactive Glass on Microhardness of Bleached Enamel Surface

Young Hee PARK 1 ; An Na CHOI ; Kyoung Hwa JUNG ; Jeong Kil PARK ; Yong Hoon KWON ; Sung Ae SON

Affiliations

+expand

Keywords

Bleaching; 45S5 bioacitive glass; Remineralization

Country

Republic of Korea

Language

English

Abstract

The purpose of this study was to examine effects of bioactive glass on Vickers hardness of bleached enamel surface. Enamel specimens were bleached with 15% carbamide peroxide (CP) for 14days. After bleaching, Artificial saliva (AS), 45S5 bioactive glass (BAG) and fluoride varnish (FV) are applied each specimens (n=10). The Vickers hardness of the specimens was measured before and after the bleaching, after the remineralized treatment at 1 day and after 7 and 14 days. The Vickers hardness on enamel surface after bleaching decreased statistically (p < 0.05) compared to before bleached enamel surface. The Vickers hardness increased significantly in the BAG and FV groups compared to the AS group values at 1 day and 7 days after remineralization (P < 0.05). 45S5 bioactive glass rapidly increase Vickers hardness of the bleached enamel surface.