Journal of Dental Research, Vol 69, 1316-1323, Copyright © 1990 by International & American Associations for Dental Research Online Journals

ARTICLES

Micro-analysis of plaque fluid from single-site fasted plaque

G. L. Vogel, C. M. Carey, L. C. Chow and A. Tatevossian
American Dental Association Health Foundation, Paffenbarger Research Center, National Institute of Standards and Technology, Gaithersburg, Maryland 20899.

Despite the site-specific nature of caries, nearly all data on the concentration of ions relevant to the level of saturation of plaque fluid with respect to calcium phosphate minerals or enamel are from studies that used pooled samples. A procedure is described for the collection and analysis of inorganic ions relevant to these saturation levels in plaque fluid samples collected from a single surface on a single tooth. Various methods for examining data obtained by this procedure are described, and a mathematical procedure employing potential plots is recommended.

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