Composition and cariogenic potential of dental plaque fluid.
Our understanding of the chemical events that take place at the tooth-plaque interface has improved greatly through studies of the chemical composition and properties of dental plaque fluid. In the absence of fermentable carbohydrate, plaque fluid has been found to be supersaturated with respect to tooth mineral and other calcium phosphate phases, thus exhibiting the potential to support calculus formation and the remineralization of incipient carious lesions. Following the exposure to fermentable carbohydrate, the degree of saturation of plaque fluid decreases rapidly, primarily due to lactic acid production and the lowering of plaque fluid pH. The extent of these chemical changes has been shown to be associated with differences in caries history. Such studies have been facilitated by the recent development of microanalytical techniques. Unfortunately, little is known about the relationship between the observed chemical changes in plaque fluid and the microbial composition of plaque. Limited information is also available on the association of immune factors in plaque fluid with dental disease.
Margolis
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Forsyth Dental Center, Boston, MA 02115.
Moreno
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D002130:Calcium Phosphates / Q000032:analysis; D002326:Cariogenic Agents; D003728:Dental Calculus / Q000209:etiology; D003731:Dental Caries / Q000209:etiology*; D003773:Dental Plaque / Q000737:chemistry* / Q000503:physiopathology*; D005122:Exudates and Transudates / Q000737:chemistry / Q000502:physiology; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007773:Lactates / Q000737:chemistry; D019344:Lactic Acid; D008903:Minerals / Q000737:chemistry; D014089:Tooth Remineralization
D002130:Calcium Phosphates; D002326:Cariogenic Agents; D007773:Lactates; D008903:Minerals; C485828:alpha-tricalcium phosphate; C485830:tetracalcium phosphate; D019344:Lactic Acid; C485838:calcium phosphate, monobasic, anhydrous; C020243:calcium phosphate; C485829:calcium phosphate, dibasic, anhydrous