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Related Experiment Videos

Fluoride release from aesthetic dental materials.

A J Preston1, L H Mair, E A Agalamanyi

  • 1Department of Clinical Dental Sciences, Dental School, University of Liverpool, UK. A.J.Preston@liverpool.ac.uk

Journal of Oral Rehabilitation
|March 18, 1999
PubMed
Summary

Resin-modified glass-ionomer cements released the most fluoride over 64 days compared to other dental materials. Fluoride release was significantly lower in artificial saliva than in deionized water.

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Area of Science:

  • Dental Materials Science
  • Biomaterials
  • Cariology

Background:

  • Fluoride release from dental restorative materials is crucial for caries prevention.
  • Understanding fluoride release kinetics in different oral environments is essential for material selection.

Purpose of the Study:

  • To compare fluoride release rates from various dental materials in deionized water and artificial saliva.
  • To evaluate the influence of the medium on fluoride release over time.

Main Methods:

  • Disc samples of glass-ionomer cements, a resin-modified glass-ionomer cement, a compomer, and a fluoride-containing composite were tested.
  • Fluoride release was measured in deionized water and artificial saliva over 64 days.
  • Release rates were calculated as fluoride release per cm² per hour.

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Main Results:

  • All materials showed a significant decrease in fluoride release rate after 24 hours.
  • Fluoride release was consistently lower in artificial saliva compared to deionized water (P < 0.001).
  • Resin-modified glass-ionomer cement exhibited the highest fluoride release rate in both tested media.

Conclusions:

  • Resin-modified glass-ionomer cements demonstrate the highest fluoride release potential among the tested materials.
  • The oral environment (simulated by artificial saliva) significantly reduces fluoride release from these materials.
  • Further research into optimizing fluoride release profiles for enhanced cariostatic effects is warranted.