A caries mechanism was tested in a model experiment in which cation-permselective membranes were used to simulate the outer enamel-plaque layer. According to this theory, preferential diffusion of Ca2+ and H+ accelerates caries formation. The results support the theory and confirm that activity of Ca(OH)2 is of fundamental importance.
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References
1.
Klein, H., and Amberson, W.R.: A Physicochemical Study of the Structure of Dental Enamel, J Dent Res9: 667-688, 1929.
2.
Chick, A.O., and Waters, W.E.: Membrane Potential in Human Teeth: The Effect of Some Common Organic Anions , Arch Oral Biol10: 1-7, 1965.
3.
Takaesu, Y.; Moreno, W.C.; and Brudevold, F.: EMF Measurement Across Hydroxyapatite Membranes, Arch Oral Biol18: 717-728, 1973.
Gregory, T.M. ; Moreno, E.C.; and Brown, W.E.: Solubility of CaHPO4. 2H2O in the System Ca (OH) 2-H3PO4- H2O at 5, 15, 25 and 37.5 C , J Res Natl Bur Stand (A. Phys and Chem)74A (4) : 461-475, 1970.
