Current Issue Subscriptions
Back Issues Advertising
More Information Classified Ads
For Authors Continuing Education
Vol. 69, No. 11
ISSN: 1488-2159
December 2003


What Is the Critical pH and Why Does a Tooth Dissolve in Acid?


• Colin Dawes, BSc, BDS, PhD •

A b s t r a c t

This paper discusses the concept of critical pH for dissolution of enamel in oral fluids. The critical pH does not have a fixed value but rather is inversely proportional to the calcium and phosphate concentrations in the solution. The paper also discusses why teeth dissolve in acid, why remineralization of white-spot caries lesions is possible and why remineralization of teeth eroded by acid is not possible.


MeSH Key Words: dental enamel solubility; hydrogen-ion concentration; tooth remineralization
Reply to this article | View replies [0]

Full text provided in PDF format


Mission Statement & Editor's Message | Multimedia Centre | Readership Survey
Contact the Editor | Français