How effective is the application of topical fluoride varnish in preventing dental caries in children? a literature review

Fluoride varnish application, a quality improvement project implemented in a rural pediatric practice

OBJECTIVES

The United States has a public health crisis of dental caries in children's primary teeth. Fifty-five percent of children have dental caries by age 8. The majority of these children are nonwhite and poor. Caries could be decreased by 40% if fluoride varnish (FV) application started with tooth eruption.

DESIGN AND SAMPLE

A four-month FV application QI project was implemented in a rural pediatric practice. The staff was trained by the Vermont Department of Health using the From the First Tooth protocol. Children aged 9, 18, 24, and 30 months.

MEASURES

Pre- and postproject questionnaires were completed. A caries risk tool assessed a child's risk and access to dental care. Completed FV applications were recorded and staff interviewed weekly.

INTERVENTION

FV application was offered at well child checks (WCCs).

RESULTS

Fifty-six percent of sample patients received FV at their WCCs. Qualitative themes included the following: reasons subjects did/did not receive FV, ease of FV application, increased oral hygiene education, visit flow, application time, older children's FV need, and billing issues.

CONCLUSION

This economical, FV application program can be readily implemented by nurse practitioners and nurses in pediatric practices where children have inadequate dental care.

Dynamics of Fluoride Bioavailability in the Biofilms of Different Oral Surfaces after Amine Fluoride and Sodium Fluoride Application

It was the aim of this study to investigate differences in fluoride bioavailability in different oral areas after the application of amine fluoride (AmF) and sodium fluoride (NaF). The null hypothesis suggested no differences in the fluoride bioavailability. The tongue coating was removed and biofilm samples from the palate, oral floor and cheeks were collected. All subjects brushed their teeth with toothpaste containing AmF or NaF. Specimens were collected before, as well as immediately after and at 30 and 120 minutes after tooth brushing. The fluoride concentration was determined. The area under the curve was calculated for each location and compared statistically. In the tongue coating, fluoride concentration increased faster after NaF application than after AmF application. After 30 minutes, the fluoride concentration decreased and remained stable until 120 minutes after AmF application and returned to baseline after NaF application. The difference between the baseline and the endpoint measurements was statistically significant. The fluoride concentration in the tongue coating remained at a higher level compared with the baseline for up to 120 minutes post-brushing. This may indicate that the tongue coating is a major reservoir for fluoride bioavailability. The results also indicate an unequal fluoride distribution in the oral cavity.