Fluoride release from glass polyalkenoate (ionomer) cements

R. G. Hill, E. De Barra, S. Griffin, G. Henn, J. Devlin, P. V. Hatton, I. Brook, K. Johal, G. Craig

Research output: Contribution to journalConference articlepeer-review

Abstract

Fluoride release studies from model glass polyalkenoate cements show the release to be proportional to the fluorine content of the glass. The dominant fluoride release mechanism is by an ion exchange mechanism, where fluoride ions are exchanged for hydroxyl ions in water, rather than via a counter ion mechanism involving simultaneous release of an alkali metal ion. The ion exchange mechanism explains the recent reduction in pH observed in cell culture studied. Negligible amounts of aluminium are released and virtually no fluorine is released bound to aluminium from the set cement.

Original languageEnglish
Pages (from-to)315-322
Number of pages8
JournalMechanical and corrosion properties. Series A, Key engineering materials
Volume99-100
Publication statusPublished - 1995
EventProceedings of the 10th Irish Materials Forum Conference IMF10 - Coleraine, Irel
Duration: 1 Sep 19941 Sep 1994

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