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De/remineralization from sodium fluoride dentifrices
J S Wefel1, M E Jensen, P T Triolo
1Dows Institute for Dental Research, College of Dentistry, University of Iowa, Iowa City 52242, USA.
American Journal of Dentistry
|August 1, 1995
Summary
Sodium fluoride toothpastes promote enamel remineralization, with higher fluoride concentrations yielding greater mineral gain. An enhanced fluoride delivery system performed comparably to a high-concentration fluoride toothpaste.
Area of Science:
- Dental research
- Cariology
- Materials science
Background:
- Dental caries is a significant public health concern.
- Fluoride is a key agent in preventing and reversing enamel demineralization.
- Optimizing fluoride delivery systems is crucial for enhancing anticaries efficacy.
Purpose of the Study:
- To evaluate the demineralization and remineralization effects of sodium fluoride dentifrices.
- To assess the dose-response relationship of varying fluoride concentrations.
- To investigate the efficacy of an enhanced fluoride delivery system.
Main Methods:
- An in situ single-section crown model system was utilized.
- Participants underwent supervised toothbrushing twice daily for one month.
- Enamel and root lesions were analyzed using polarized light microscopy and microradiography.
Main Results:
- The placebo group exhibited significant mineral loss.
- Fluoride dentifrices demonstrated dose-dependent enamel mineral gain.
- An enhanced polyampholyte-NaF system (1100 ppm F-) was as effective as 2800 ppm F- dentifrice.
- Root lesions showed demineralization across all treatments, with similar trends observed.
Conclusions:
- Sodium fluoride dentifrices effectively promote enamel remineralization in a dose-dependent manner.
- Enhanced fluoride delivery systems can achieve significant remineralization benefits.
- Further research into optimized fluoride formulations is warranted for caries prevention.
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