Table of Contents Author Guidelines Submit a Manuscript
International Journal of Dentistry
Volume 2013 (2013), Article ID 486358, 5 pages
http://dx.doi.org/10.1155/2013/486358
Research Article

The Effect of the Addition of Tricalcium Phosphate to 5% Sodium Fluoride Varnishes on the Microhardness of Enamel of Primary Teeth

1Division of Pediatric and Preventive Dentistry, Riyadh Colleges of Dentistry and Pharmacy, P.O. Box 84891, Riyadh 11681, Saudi Arabia
2Division of Restorative Dentistry, Riyadh Colleges of Dentistry and Pharmacy, P.O. Box 84891, Riyadh 11681, Saudi Arabia

Received 18 March 2013; Accepted 12 May 2013

Academic Editor: Jukka H. Meurman

Copyright © 2013 Saeed Aedha AlAmoudi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Aim. The aim of this study was to compare the effect of pH cycling on the microhardness of the enamel of primary human teeth treated with a conventional brown Sodium Fluoride (5% NaF) Varnish to those treated with a white Fluoride Varnish (5% NaF) enhanced with functionalized tricalcium phosphate (fTCP). Materials and Methods. Ninety extracted caries-free primary incisors were washed in a detergent and divided into three groups; group A received no treatment, teeth in group B were coated with Sodium Fluoride (5% NaF) Varnish, while teeth in group C were coated with 5% NaF varnish enhanced with functionalized tricalcium phosphate (fTCP). After ten days of pH cycling, the surface microhardness of the teeth was measured using a Knoop indenter. Results. The mean Knoop hardness number (KHN) of 5% NaF with fTCP was greater than that of 5% NaF alone while the control group had the lowest mean KHN. Conclusion. The results of this study suggest that the use of an additive such as fTCP to a fluoride varnish significantly improves the protective ability of the varnish on primary teeth in vitro.