Glass ionomer cement inhibits secondary caries in an in vitro biofilm model

Abstract

Glass ionomer cements have a higher secondary caries inhibiting effect than resin composites.

Use of sonic waves in bubble formation, microhardness and fluoride release of a high‐viscosity glass‐ionomer cement

“…As shown in this study, adding excess GIC liquid results in a mechanically fragile material . Moreover, the clinical durability of the GIC depends on the resistance of the material and on its biocompatibility, mainly related to its chemical adhesion and ability in fluoride release …”

“…Another important property of GIC, which differentiates this material from any other material, is its ability to release fluoride and its consequent effect on inhibiting secondary caries . The cycle of demineralization and remineralization applied in this study simulates the pH cycling that occurs during the formation of dental caries.…”

“…Another important property of GIC, which differentiates this material from any other material, is its ability to release fluoride 31,32 and its consequent effect on inhibiting secondary caries. 33 The cycle of demineralization and remineralization applied in this study simulates the pH cycling that occurs during the formation of dental caries. Thus, the analysis of fluoride release from the GIC is important because the presence of this ion in dental plaque, compared with falls of pH, can reduce the demineralization of dental tissues and increase remineralization.…”

“…19 Moreover, the clinical durability of the GIC depends on the resistance of the material and on its biocompatibility, mainly related to its chemical adhesion and ability in fluoride release. [31][32][33] Currently, many proposals have been made to further improve GIC, such as the inclusion of bioactive compounds, which still demands research. The use of a sonic device, as proposed in this study, includes a possibility for application in ART GIC insertion.…”

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“…[3][4][5][6][7][8][9][10][11][12] The antibacterial activity of glass ionomer cements (GIC) is mostly attributed to their fluoride and other ions release for secondary caries inhibiting effect, which has been already confirmed in vitro with lower demineralization depths of the glass ionomer groups adjacent to the dental hard tissue. [13][14][15][16][17][18][19] Thus, these cements are expected to actively control microbial biofilm formation, while biofilms modulate the release of fluoride from GICs. 20,21 On the other hand, studies have shown that fluoride-releasing activity of GICs is insufficient for effective protection.…”