A comparative study of color stability and fluoride release from glass ionomer cements combined with chlorhexidine.

Ar Prabhakar

doi:10.5005/jp-journals-10005-1181

Abstract

ABSTRACTBackground: Restoring carious teeth is one of the major treatment needs of young children. Glass ionomer cement (GIC) systems had become the most important dental restorative and luting materials for use in preschoolers, children and teenagers. Several attempts in developing GIC with antibacterial effects by addition of bactericides, such as chlorhexidine, have been reported.Aim: Aim of the study was to evaluate and compare the color and fluoride ion release of conventional and resin-modified GICs in combination with 1.25 and 2.5% chlorhexidine diacetate.Materials and methods: The control groups consisted of conventional GIC and resin-modified GIC. The experimental groups consisted of conventional and resin-modified GIC groups, consisting of 1.25 and 2.5% chlorhexidine. A total of six groups were included with each group being allotted 20 specimens for the evaluation of color stability and 10 specimens each were allotted for the evaluation of fluoride release.Color and fluoride release were recorded using spectrophoto-meter and fluoride selective electrode respectively at 24 hours 7 days and 1 month.Results: Resin-modified GIC groups showed less color stability and better fluoride release at the end of the study compared to conventional GIC groups.Conclusion: There was no significant change in color and fluoride release between 1.25 and 2.5% conventional GIC and also between 1.25 and 2.5% resin-modified GIC combined with chlorhexidine diacetate at the end of the study. Conventional GIC showed better color stability and less fluoride release compared to resin-modified GIC.How to cite this article: Prabhakar AR, Pattanshetti K, Sugandhan S. A Comparative Study of Color Stability and Fluoride Release from Glass Ionomer Cements Combined with Chlorhexidine. Int J Clin Pediatr Dent 2013;6(1):26-29.

Highlights

The mutans group of streptococci is strongly associated with the initiation of dental caries
Resin-modified Glass ionomer cement (GIC) groups showed less color stability and better fluoride release at the end of the study compared to conventional GIC groups
There was no significant change in color and fluoride release between 1.25 and 2.5% conventional GIC and between 1.25 and 2.5% resin-modified GIC combined with chlorhexidine diacetate at the end of the study

Summary

Introduction

The mutans group of streptococci is strongly associated with the initiation of dental caries. Remineralization by the release of fluoride is a representative, but the antibacterial effect is another important property because inactivation of bacteria means a direct strategy to eradicate the cause of dental caries.[2]. Glass ionomer cements (GICs) inhibit the growth of mutans streptococci and some antibacterial activity of such material may be due to fluoride release. Jedrychowski et al increased the antibacterial activity of GIC by addition of chlorhexidine (CHX) without compromising the mechanical properties of the material.[1] CHX has been shown to be the most suitable agent in reducing mutans streptococci due to its increased susceptibility when compared to other microorganisms. Glass ionomer cement (GIC) systems had become the most important dental restorative and luting materials for use in preschoolers, children and teenagers. Several attempts in developing GIC with antibacterial effects by addition of bactericides, such as chlorhexidine, have been reported

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