Subsurface demineralization in porous apatite-gel suspensions

J. D.B. Featherstone; E. L. Cusslerh

doi:10.1159/000261058

Subsurface demineralization in porous apatite-gel suspensions

J. D.B. Featherstone, E. L. Cusslerh

Chemical Engineering and Materials Science

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5 Scopus citations

Abstract

Suspensions of hydroxyapatite or carbonated apatite stabilized in gelatin gels were exposed to hydrochloric acid solutions containing calcium and/or phosphate and/or fluoride. Initial apatite dissolution occurred at and near the surface of the gel and partial dissolution took place below the surface. A remineralization band subsequently appeared just below the surface when either Ca or PO₄ was present in excess. A mathematical theory of demineralization of porous solids predicts this behavior for the apatite case.

Original language	English (US)
Pages (from-to)	494-501
Number of pages	8
Journal	Caries research
Volume	21
Issue number	6
DOIs	https://doi.org/10.1159/000261058
State	Published - 1987

Keywords

Apatite
Caries
Subsurface demineralization

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10.1159/000261058

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abstract = "Suspensions of hydroxyapatite or carbonated apatite stabilized in gelatin gels were exposed to hydrochloric acid solutions containing calcium and/or phosphate and/or fluoride. Initial apatite dissolution occurred at and near the surface of the gel and partial dissolution took place below the surface. A remineralization band subsequently appeared just below the surface when either Ca or PO4 was present in excess. A mathematical theory of demineralization of porous solids predicts this behavior for the apatite case.",

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year = "1987",

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AU - Cusslerh, E. L.

PY - 1987

Y1 - 1987

N2 - Suspensions of hydroxyapatite or carbonated apatite stabilized in gelatin gels were exposed to hydrochloric acid solutions containing calcium and/or phosphate and/or fluoride. Initial apatite dissolution occurred at and near the surface of the gel and partial dissolution took place below the surface. A remineralization band subsequently appeared just below the surface when either Ca or PO4 was present in excess. A mathematical theory of demineralization of porous solids predicts this behavior for the apatite case.

AB - Suspensions of hydroxyapatite or carbonated apatite stabilized in gelatin gels were exposed to hydrochloric acid solutions containing calcium and/or phosphate and/or fluoride. Initial apatite dissolution occurred at and near the surface of the gel and partial dissolution took place below the surface. A remineralization band subsequently appeared just below the surface when either Ca or PO4 was present in excess. A mathematical theory of demineralization of porous solids predicts this behavior for the apatite case.

KW - Apatite

KW - Caries

KW - Subsurface demineralization

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JO - Caries research

JF - Caries research

IS - 6

ER -

Subsurface demineralization in porous apatite-gel suspensions

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