Determination of fluoride ions released from resin-based dental materials using ion-selective electrode and ion chromatograph

Toshiyuki Itota, Thomas E. Carrick, Sandra Rusby, Omar Taha Al-Naimi, Masahiro Yoshiyama, John F. McCabe

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

Objectives. The aim of this study was to investigate the quantities of total and free fluoride ions released from four resin-based composites containing fluoride (Heliomolar (HE), UniFil S (UF), Beautifil (BE) and Reactmer paste (RP)) and one glass ionomer cement (Ketac-Fil Plus Aplicap (KF)). Methods. Five disk specimens of each material were prepared and the fluoride release was measured at 1, 2, 4, 7, 14, 21 and 28 days. The amounts of total and free fluoride ions released from materials were measured by using an ion-selective electrode (ISE) and ion chromatography (IC). Data were statistically analyzed using a t-test at a significant level of 0.05. Results. For HE, fluoride release is undetectable using the ISE but was detected by the IC method. There were no significant differences in the free and total fluoride ions released from UF and BE (p>0.05). For RP, the free fluoride ions were significantly lower than the total fluoride ions after 4 days (p<0.05). KF showed significant difference between total and free fluoride ions at 7 and 28 days (p<0.05). Conclusions. The nature of the fluoride incorporated into dental materials affected the amounts of free and total fluoride ions released from materials.

Original languageEnglish
Pages (from-to)117-122
Number of pages6
JournalJournal of Dentistry
Volume32
Issue number2
DOIs
Publication statusPublished - Feb 2004

Keywords

  • Chromatography
  • Fluoride release
  • Glass ionomer cement
  • Ion-selective electrode
  • Resin

ASJC Scopus subject areas

  • Dentistry(all)

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