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Related Experiment Videos

Fluoride release from fluoride-containing materials

F B de Araujo1, F García-Godoy, J A Cury

  • 1University of Texas Health Science Center at San Antonio, Department of Pediatric Dentistry 78284-7888, USA.

Operative Dentistry
|September 1, 1996
PubMed
Summary

Chelon-Fil and Fuji II LC released the most fluoride over 28 days. Fluoride release was highest initially and decreased over time for all tested dental materials.

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Area of Science:

  • Dental Materials Science
  • Biomaterials Research
  • Fluoride Ion Analysis

Background:

  • Fluoride-releasing dental materials are crucial for caries prevention.
  • Understanding the kinetics of fluoride release is essential for material selection.
  • In vitro studies provide valuable data on material performance.

Purpose of the Study:

  • To quantify and compare the in vitro fluoride release from various light-cured and self-cured dental materials over 28 days.
  • To identify materials with superior and inferior fluoride release profiles.
  • To analyze the temporal pattern of fluoride release.

Main Methods:

  • Six different fluoride-containing dental materials were tested in vitro.
  • Disk samples were prepared and stored under controlled humidity before immersion in deionized water.

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  • Fluoride release was measured using a fluoride ion-specific electrode at multiple time points up to 28 days.
  • Statistical analysis (ANOVA, Student-Newman-Keuls) was performed to compare fluoride release between groups.

    • Main Results:

    • Chelon-Fil exhibited the highest fluoride release in the first 7 days, followed by Fuji II LC.
    • At 14 and 28 days, Chelon-Fil, Dyract, and Fuji II LC showed similar, significantly higher fluoride release compared to other materials.
    • Vitremer + Scotchbond Multi-Purpose released significantly less fluoride across all time intervals.
    • Initial fluoride release (days 1-2) was significantly higher for most materials, with a general decrease observed over 28 days.

    Conclusions:

    • Chelon-Fil and Fuji II LC are superior in sustained fluoride release among the tested materials.
    • Material selection should consider the initial high burst release and subsequent decrease in fluoride ion concentration.
    • The combination of Vitremer and Scotchbond Multi-Purpose demonstrated limited fluoride release potential.