Calcium fluoride formation on sound enamel using fluoride solutions with and without lactate.

A. M. Harding, Domenick Zero, J. D. Featherstone, S. M. McCormack, C. P. Shields, H. M. Proskin

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The formation of calcium (Ca) fluoride (CaF2) on bovine enamel blocks during clinically relevant treatment times using neutral fluoride (F) solutions (0.26 mol/l F) with and without 0.1 mol/l lactate was investigated. Uncoated and pellicle-coated blocks were evaluated for alkali-soluble (1 mol/l KOH, three consecutive 24-hour treatments) Ca, PO4, and F after treatment by the F solutions for 0, 5, 15, 30, and 60 min. There was an overall time-related increase in F recovery, while Ca tended to remain at baseline levels. Less F was recovered from the pellicle-coated blocks. The addition of lactate to the F treatment solution did not result in an overall increase in alkali-soluble F recovery, but did result in the formation of cuboidal shaped crystals which closely approached the morphology of pure CaF2. A 1:2 stoichiometric ratio Ca:2F (mol:mol) was not established based on chemical analyses. The ultrastructural and elemental composition of surface deposits on the samples, as determined using scanning electron microscopy, X-ray diffraction, and energy-dispersive spectroscopy, established the presence of CaF2 after 24-hour F treatments; however, it was not possible to directly demonstrate the formation of CaF2 after clinically relevant treatment times.

Original languageEnglish (US)
Pages (from-to)1-8
Number of pages8
JournalCaries Research
Volume28
Issue number1
StatePublished - 1994
Externally publishedYes

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Calcium Fluoride
Dental Enamel
Fluorides
Lactic Acid
Alkalies
Calcium
X-Ray Diffraction
Electron Scanning Microscopy
Spectrum Analysis

ASJC Scopus subject areas

  • Dentistry(all)

Cite this

Harding, A. M., Zero, D., Featherstone, J. D., McCormack, S. M., Shields, C. P., & Proskin, H. M. (1994). Calcium fluoride formation on sound enamel using fluoride solutions with and without lactate. Caries Research, 28(1), 1-8.

Calcium fluoride formation on sound enamel using fluoride solutions with and without lactate. / Harding, A. M.; Zero, Domenick; Featherstone, J. D.; McCormack, S. M.; Shields, C. P.; Proskin, H. M.

In: Caries Research, Vol. 28, No. 1, 1994, p. 1-8.

Research output: Contribution to journalArticle

Harding, AM, Zero, D, Featherstone, JD, McCormack, SM, Shields, CP & Proskin, HM 1994, 'Calcium fluoride formation on sound enamel using fluoride solutions with and without lactate.', Caries Research, vol. 28, no. 1, pp. 1-8.
Harding AM, Zero D, Featherstone JD, McCormack SM, Shields CP, Proskin HM. Calcium fluoride formation on sound enamel using fluoride solutions with and without lactate. Caries Research. 1994;28(1):1-8.
Harding, A. M. ; Zero, Domenick ; Featherstone, J. D. ; McCormack, S. M. ; Shields, C. P. ; Proskin, H. M. / Calcium fluoride formation on sound enamel using fluoride solutions with and without lactate. In: Caries Research. 1994 ; Vol. 28, No. 1. pp. 1-8.
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