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Effect of fluoride concentrations on overdenture abutments
R L Ettinger1, R Ahmad, J S Wefel
1Dows Institute for Dental Research, College of Dentistry, University of Iowa, Iowa City 52242.
American Journal of Dentistry
|August 1, 1992
Summary
This study found that topical fluoride applications showed a dose-dependent effect on preventing root dentin demineralization. Higher fluoride concentrations resulted in wider protective bands within the lesions, indicating enhanced caries prevention.
Area of Science:
- Dental materials science
- Cariology
- Preventive dentistry
Background:
- Root caries is a significant concern, especially in older adults.
- Fluoride is a cornerstone of caries prevention.
- Understanding fluoride's efficacy on root surfaces is crucial for effective treatment.
Purpose of the Study:
- To evaluate the preventive effect of four different fluoride concentrations on root dentin demineralization.
- To assess the dose-response relationship of topical fluoride application on lesion formation.
Main Methods:
- Extracted human anterior teeth were prepared and sectioned.
- Root surfaces were exposed, and teeth were treated with varying fluoride concentrations (0, 100, 250, 500, 1000 ppm).
- Teeth underwent a 10-day demineralization-remineralization cycling, followed by histologic examination and lesion depth measurement.
Main Results:
- Lesions on the root surface were not measurable.
- Lesions on the exposed dentin showed similar depths across groups.
- Lesions exhibited banding, with band width correlating positively with fluoride concentration.
Conclusions:
- Topical fluoride demonstrates a dose-response effect in preventing root dentin demineralization.
- Fluoride concentration influences the formation of protective bands within carious lesions.
- Further research may explore optimal fluoride application protocols for root caries prevention.