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Related Experiment Videos

Fluoride release from some dental materials in different solutions.

A S Carvalho1, J A Cury

  • 1University of Campinas, Piracicaba School of Dentistry, Piracicaba, São Paulo, Brazil.

Operative Dentistry
|May 25, 1999
PubMed
Summary
This summary is machine-generated.

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Fluoride release from dental materials varies significantly depending on the testing medium. pH-cycling conditions, simulating caries, show higher fluoride release than deionized water or artificial saliva.

Area of Science:

  • Dental Materials Science
  • Biomaterials
  • Cariology

Background:

  • Fluoride release data from dental materials often use artificial media.
  • These media do not accurately reflect the dynamic oral environment during caries development.
  • Accurate assessment requires simulating cariogenic conditions.

Purpose of the Study:

  • To quantify fluoride release from various dental restorative materials.
  • To compare fluoride release under different storage conditions, including pH-cycling.
  • To evaluate the impact of testing media on fluoride release measurements.

Main Methods:

  • Five dental materials (Chelon-Fil, Dyract, Variglass, Vitremer, Tetric) were tested.
  • Samples were stored in deionized water, artificial saliva, and pH-cycling solutions (pH 4.3 and 7.0).

Related Experiment Videos

  • Fluoride release was measured daily for 15 days using TISAB buffer.

    • Main Results:

    • Fluoride release was significantly higher in pH-cycling solutions compared to deionized water and artificial saliva.
    • The ranking order of fluoride release among materials changed depending on the storage medium used.
    • Material performance in fluoride release is medium-dependent.

    Conclusions:

    • Standard testing media like deionized water and artificial saliva may not accurately represent in vivo fluoride release.
    • pH-cycling models provide a more dynamic and relevant assessment of fluoride release from dental materials.
    • Evaluating fluoride release requires careful consideration of the experimental medium to simulate cariogenic conditions.