Chow, L.
(2010),
Diffusion of Ions between Two Solutions Saturated With Respect to Hydroxyapatite: A Mechanism for Subsurface Demineralization of Teeth, Journal of Research (NIST JRES), National Institute of Standards and Technology, Gaithersburg, MD, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=905877
(Accessed December 30, 2024)
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Diffusion of Ions between Two Solutions Saturated With Respect to Hydroxyapatite: A Mechanism for Subsurface Demineralization of Teeth
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Author(s)
Abstract
Diffusion-controlled dissolution and precipitation reactions occur in many biological systems and some non-stirred in vitro systems. Previous studies have shown that differences in the diffusion rates of ions involved in a dissolution/precipitation reaction can produce significant effects on the rate and course of the reaction. We report here results of a study that show inter-diffusion of ions between two solutions, both saturated with respect to hydroxyapatite but with dissimilar compositions, resulted in one solution becoming undersaturated and the other supersaturated. A model is proposed that may explain the formation of a mineral-dense layer in the caries process.Citation
Journal of Research (NIST JRES) -
Volume
115
Issue
4
NIST Pub Series
Pub Type
NIST Pubs
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Keywords
Dissolution, precipitation, diffusion, calcium phosphate, hydroxyapatite, caries, demineralization
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Created July 17, 2010, Updated February 19, 2017