Dissolution of calcium fluoride in human saliva

The dissolution behavior of calcium fluoride in saliva was investigated. Chemically pure calcium fluoride (200 mg) was equilibrated in 10 ml of either saliva or distilled water for 3 weeks or repeatedly exposed, at 15-min intervals, to 10 ml of fresh solutions of saliva, distilled water, or phosphat...

Full description

Saved in:
Bibliographic Details
Published inActa odontologica Scandinavica Vol. 46; no. 6; p. 355
Main Authors Saxegaard, E, Lagerlöf, F, Rølla, G
Format Journal Article
LanguageEnglish
Published England 01.01.1988
Subjects
Calcium - analysis
Calcium Fluoride - pharmacokinetics
Dental Enamel - metabolism
Dental Enamel - ultrastructure
Fluorides - analysis
Humans
Microscopy, Electron, Scanning
Phosphates - pharmacology
Saliva - metabolism
Solubility
Online AccessGet more information

Cover

More Information
Summary:The dissolution behavior of calcium fluoride in saliva was investigated. Chemically pure calcium fluoride (200 mg) was equilibrated in 10 ml of either saliva or distilled water for 3 weeks or repeatedly exposed, at 15-min intervals, to 10 ml of fresh solutions of saliva, distilled water, or phosphate- or calcium-containing solutions. Calcium fluoride dissolved more readily in water than in saliva. The study confirmed that exposure to saliva caused formation of a dissolution-limiting layer and that this layer consists of surface-adsorbed phosphates and showed in addition that the dissolution rate was continuously reduced with time of exposure to saliva or phosphate buffer. Calcium fluoride-like material, formed on enamel by treatment with 2% NaF solution, was shown by scanning electron microscopy to have higher stability in saliva than in water after 3 weeks' incubation.
ISSN:0001-6357
1502-3850
DOI:10.3109/00016358809004788