After bleaching enamel remineralization using a bioactive glass-ceramic (BioSilicate®)

Abstract

Tooth bleaching agents may weaken the tooth structure, therefore, it is important to minimize any risks of enamel and dentine damage caused by them. In this way, different materials have been used to avoid or minimize the tooth damage during bleaching. Recently, bioactive glasses have been demonstrated to be effective in mineralization of dental structures. Therefore, this study evaluated the effect of BioSilicate (a polycrystalline bioactive glass-ceramic) after bleaching by Laser-induced breakdown spectroscopy (LIBS) technique. Bovine dental blocks with 4 × 4 × 3 mm were obtained (n = 20), sequentially embedded in epoxy resin and then polished. Bleaching was performed using 35% hydrogen peroxide (Whiteness HP). Calcium (Ca) and phosphate (P) intensity values by LIBS were obtained before the treatment (T0, baselinecontrol Group), after bleaching (T1), and after BioSilicate application (T2). The use of BioSilicate after bleaching showed to be an optimal way to remineralize enamel surface making BioSilicate application a promising adjunct step to avoid or minimize the mineral loss on enamel surface after bleaching.

The Effects of Tricalcium Phosphate and Novamin Remineralizing Agents on Microhardness of Bleached Enamel with 35% Hydrogen Peroxide-An In vitro Study

“…Hydrogen peroxide is one of the most used bleaching agents commercially available today and is a substance that is capable of significantly altering the enamel surface. Its action is generally linked to its oxidizing properties, which can break organic molecules claiming not to dissolve the enamel matrix, eventually producing clearer compounds [8][9][10][11][12][13][14][15][16][17][18] .…”

“…These changes include decreased microhardness and increased porosity and permeability [4][5] . Also, loss of enamel hardness was detected, as bleaching agents are not limited to the enamel surface alone, but can also be present in the sub surface within in the outermost layer [6][7] . Subsequently, bleaching affects the organic and the inorganic components of enamel, increasing the capability to erosion, decreasing fracture stability and/or decrease abrasion resistance of the bleached dental hard tissues [8] .…”

THE EFFECT OF MISWAK & ITS PROTOCOL OF PLACEMENT, ON THE STRUCTURE, MINERAL CONTENT OF CHEMICAL AND LASER ASSISTED BLEACHED WHITE SPOT

“…So, initial enamel lesions or flat surface caries are also titled white spot lesions. (1) Teeth whitening was a humble and minimal invasive process for appealing restoration of all stained teeth (2) . Many researches have been done to evaluate the adverse effects formed throughout bleaching procedures.…”

“…Many researches have been done to evaluate the adverse effects formed throughout bleaching procedures. Bleaching agents of interest include those considered for particular usage only that include elevated amount of peroxides (2) Bleaching of the tooth construction containing white spot lesions may offer mask effect that makes the whiteness of the lesion less observable (1) .…”

In Vitro Enamel Remineralization Efficacy of Calcium Silicate-Sodium Phosphate-Fluoride Salts versus NovaMin Bioactive Glass, Following Tooth Whitening

“…These products are available for use at home or in the dental office, possibly aided by various types of light sources to intensify the oxidation reaction. 1 The process of bleaching teeth involves free radicals generation such as oxygen and perhydroxyl because of the decomposition of HP. The presence of these radicals generates an oxidation-reduction reaction.…”