Ten laboratory strains of oral microorganisms and 17 recent clinical isolates were examined for their ability to concentrate fluoride from a 1 ppm (0.05 mM NaF) fluoride solution. The laboratory strains concentrated the ion from two- to six-fold over the surrounding media. Clinical isolates of Actinomyces concentrated the ion to similar levels to the laboratory strains of this organism; however, clinical isolates of Streptococcus mutans and S. sanguis concentrated the fluoride significantly less than any of the laboratory strains examined.
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References
1.
Hardwick, J.L.: Associations Between Plaque Fluoride Concentrations and Other Parameters. In: Dental Plaque, McHugh, W. D. , Ed., Edinburgh: S. and S. Livingstone, Ltd., 1970, pp. 171-178.
2.
Jenkins, G.N. and Edgar, W.M.: Distribution and Forms of Fluoride in Saliva and Plaque, Caries Resll:(Suppl. 1) 226-242, 1977.
3.
Agus, H.M.; Schamschula, R.G.; Barnes, D.E.; and Bunzel, M.: Associations Between the Total Fluoride Content of Dental Plaque and Individual Caries Experience inAustralian Children, Community Dent Oral Epidemiol4:210-214, 1976.
4.
Gron, P.; Yao, K.; and Spinelli, M.: A Study of Inorganic Constitutents in Dental Plaque, J Dent Res48:799-805, 1969.
5.
Yao, K. and Gron, P.: Fluoride Concentrations in Duct Saliva and Whole Saliva, Caries Res4:321-331, 1970.
6.
Edgar, W.M.: Further Observations on the Chemistry of Plaque Fluorine, Helv Odont Acta17:50,1973.
7.
Kashket, S. and Rodriguez, V.M.: Fluoride Accumulation by a Strain of Human Oral Streptococcus sanguis, Arch Oral Biol21:459-464, 1976.
8.
Whitford, G.M. ; Schuster, G.S.; Pash-Ley, D.H.; and Venkateswarlu , P.: Fluoride Uptake by Streptococcus mutans 6715, Infect Immun18:680-687, 1977.
9.
Gold, O.G.; Jordan, H.V.; and Van Houte, J.: A Selective Medium for Streptococcus mutans, Arch Oral Biol18 :1356-1364,1973.
10.
Ellen, R.P. and Balcerzak-Raczkow-Ski , I.: Differential Medium for Detecting Dental Plaque Bacteria ResemblingA. viscosus and A. naeslundii , J Clin Microbiol2 :305-310,1975.
11.
Kornman, K.S. and Loesche, WJ: A New Medium for Isolation of Actinomyces viscosus and Actinomyces naeslundii from Dental Plaque, J Clin Microbiol7:514-518, 1978.
12.
Shklair, I.L. and Keene, H.J.: A Biochemical Scheme for the Separation of the Five Varieties of Streptococcus mutans, Arch Oral Biol19:1079-1081, 1974.
13.
Carlsson, J. : Zooglea-forming Streptococci, Resembling Streptococcus sanguis, Isolated from Dental Plaque in Man, Odont Revy16:348-358,1965.
14.
Hallsworth, A.S. ; Weatherell, J.A.; and Deutsch, D.: Determination of Subnanogram Amounts of Fluoride with the Fluoride Electrode, Anal Chem48 :1660-1664, 1976.
15.
Hunter, J.R.; Baird, J.K.; and Elwood, D.C.: Effect of Fluoride on the Transport of Sugars into Chemostat-grown Streptococcus mutans, J Dent Res52:954, 1973.
16.
Rugg-Gunn, A.J.; Edgar, W.M.; Cock-Burn, M.A.; and Jenkins, G.N.: Correlations Between Fluoride, Weight, and pH Change in Children's Plaque, IADR Progr & Abst58: No. 426, 1979.
17.
Gaugler, R.W. and Bruton, W.F.: Fluoride Concentration in Plaque of Caries-free and Caries-active Naval Recruits, AADR Progr & Abst59: No. 519, 1980.
