Influence of F-18 Bioactive Glass Incorporation into Whitening Gel on Properties of Bovine Dental Enamel

2022 • Volume 16 • Issue 3

Joatan Lucas de Sousa Gomes Costa; João Felipe Besegato; Tatiane Miranda Manzoli; Básia Rabelo Nogueira; Eran Nair Mesquita de Almeida & Milton Carlos Kuga



Bioactive materials have shown positive results in reducing the deleterious effects of tooth whitening. However, their effects on whitening efficacy is still uncertain. Therefore, the aim of this study was to evaluate the effects of F-18 bioactive glass incorporation into a bleaching gel on color and microhardness of enamel after tooth whitening. Thirty bovine enamel-stained specimens were randomly divided into three groups (n=10) according to the whitening protocol: control group (unbleached), HP35 % (35 % hydrogen peroxide) and F-18 (F-18 bioactive glass incorporated into HP35 %). pH, color change and microhardness analyzes were performed at baseline, 24 hours and 7 days after tooth whitening. Color evaluation showed that experimental groups were different than control group for all coordinates (p < 0.05). However, no intragroup differences were observed (p > 0.05). No differences in enamel microhardness were found among the groups within the same evaluation time (p > 0.118). Regarding the intragroup comparisons, no differences were observed for control and F-18 groups (p > 0.129). It was concluded that F-18 bioactive glass incorporation did not affect the whitening efficacy and the enamel microhardness.

KEY WORDS: bioglass, enamel, hydrogen peroxide, tooth whitening, microhardness.


How to cite this article

COSTA, J. L. S. G.; BESEGATO, J. F.; MANZOLI, T. M.; NOGUEIRA, B. R.; MESQUITA DE ALMEIDA, E. N. & KUGA, M. C. Influence of F-18 bioactive glass incorporation into whitening gel on properties of bovine dental enamel. Int. J. Odontostomat., 16(3):389-395, 2022.


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