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Effect of Three Types of Fluoride Varnish in Preventing Early Childhood Caries

Early Childhood Caries Clinical Trial

Official title:
Are Calcium- and Phosphate-containing Fluoride Varnishes More Effective Than Conventional Fluoride Varnish in Preventing Early Childhood Caries? A Randomized Clinical Trial.

Clinical Trial Summary

This study evaluates and compares the effect of two types of calcium- and phosphate-containing fluoride varnishes to conventional fluoride varnishes in preventing early childhood caries.

Clinical Trial Description

Fluoride vanish is the most commonly used professionally applied topical agent. Traditional fluoride vanish application has been reported to exhibit significant caries inhibiting effect in both permanent teeth and primary teeth. The greatest advantage of fluoride vanish is its ability to adhere to tooth tissues for a longer period of time that enables improved fluoride uptake. It allows continuous release of fluoride ions into enamel, dentine, plaque, and saliva.The main action of topical fluoride is to retard demineralization and promote remineralization of enamel by the uptake of calcium and phosphates from saliva. The proposed mechanism of action of topical fluoride is the formation of intraoral calcium fluoride reservoirs, which are retained on enamel and slowly released to inhibit mineral loss during demineralization.

However, the formation of the intraoral calcium fluoride reservoirs is limited by the availability of intraoral calcium and fluoride ions. Low concentration of salivary calcium and phosphate ions leads to mineral deposition only at the surface of enamel as a result of low ion concentration gradient. Deposition of minerals at the surface of enamel alone may not improve the structural properties of the deep part of the incipient carious lesions. Hence, many manufacturers have modified fluoride vanish to include calcium and phosphate ions in an attempt to further improve efficacy of fluoride varnishes.

The in vitro remineralizing effects of calcium- and phosphate-containing fluoride vanishes are encouraging and scientifically sound, a longitudinal, high quality clinical study is needed to verify the laboratory findings. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT04274569
Study type Interventional
Source The University of Hong Kong
Contact
Status Enrolling by invitation
Phase N/A
Start date March 13, 2019
Completion date October 1, 2022
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