International Journal of Prosthodontics and Restorative Dentistry

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VOLUME 1 , ISSUE 1 ( April-June, 2011 ) > List of Articles


Effect of Short-term Fluoride Release from Various Restorative Cements on Enamel Demineralization: An in vitro Study

Shruti Patil, Mallikarjun Goud, Girija Sajjan

Citation Information : Patil S, Goud M, Sajjan G. Effect of Short-term Fluoride Release from Various Restorative Cements on Enamel Demineralization: An in vitro Study. Int J Prosthodont Restor Dent 2011; 1 (1):29-33.

DOI: 10.5005/jp-journals-10019-1005

Published Online: 01-06-2013

Copyright Statement:  Copyright © 2011; The Author(s).



Fluorides are probably the most commonly used anticaries agents. Due to this property they are incorporated into various restorative materials. The rate and amount of fluoride release, however, vary for different materials, which in turn determines the effectiveness of the restorative material in preventing demineralization around the restoration. To evaluate the fluoride release and area of demineralization of resin modified glass ionomers and compomers, and compare them with conventional glass ionomer cement and also to evaluate the relationship between the fluoride release and demineralization.

Materials and methods

A total of 32 human incisors were chosen and sectioned horizontally at CEJ, and the middle 2 mm of facial enamel isolated and restored with the test materials: Conventional glass ionomer cement (GIC), resin modified glass ionomer cement (RMGIC), compomer and resin composite. The specimens were observed under polarized light microscope with image analyzer to measure the area and depth of demineralization.

For fluoride release study, disks of test materials were suspended in deionized water and fluoride release was measured till a period of 4 days.


The area and depth of demineralization were least around the GIC, followed by RMGIC, compomer and composite (p < 0.05). A negative correlation was found between fluoride release and demineralization which was, however, not statistically significant.


The 4-day fluoride release was also higher for GIC as compared to RMGIC and Compomer.

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  1. Demineralization of enamel in relation to the fluoride release of materials. Am J Dent 2001;14:8-12.
  2. Fluoride release and caries inhibition associated with a resin-modified glass ionomer cement at varying fluoride loading doses. Am J Dent 2002;15:8-10.
  3. In vitro caries inhibition effects by conventional and resin-modified glass ionomer restorations. Operative Dentistry 1997;22:4-14.
  4. Resin-modified glass ionomer restorations and in vitro secondary caries formation in coronal enamel. Quintessence Int 2000;31:570-78.
  5. Resin ionomers. In tooth coloured restoratives- Principles and techniques (9th ed). BC Decker Inc 2002;57-67.
  6. Acid base reaction and fluoride release profiles in visible light cured polyacid-modified composite restoratives (compomers). Dent Mater 1998;14:57-63.
  7. Fluoride release from a polyacid-modified resin composite and 3 resin-modified glass ionomer materials. Quintessence Int 2000;31:261-66.
  8. Effects of daily fluoride exposures on fluoride release by glass ionomer-based restoratives. Operative Dentistry 2003;28(2):178-85.
  9. Fluoride release from glass ionomer cements in deionized water and artificial saliva. Dent Mater 1990;6:118-22.
  10. Fluoride uptake and release characteristics of glass ionomer cements. Caries Res 1994;28:322-28.
  11. An FTIR study on the setting mechanism of resin-modified glass ionomer restoratives. Dent Mater May 1996;12(3):173-78.
  12. Fluoride release from light activated glass ionomer restorative cements. Dent Mater 1993;9:151-54.
  13. Chemical and biological properties of glass ionomer cements in advances in glass ionomer cements. Davidson CL, Mjor IA (Eds). Quintessence Publishing. IL 1999;85-101.
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