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Suppression of Streptococcus mutans in the Mouths of Humans by a Dental Prophylaxis and Topically-applied Iodine

Forsyth Dental Center and Harvard School of Dental Medicine, Boston, Mass. 02115

R.J. Gibbons

Forsyth Dental Center and Harvard School of Dental Medicine, Boston, Mass. 02115

A prophylaxis followed by three topical applications of an iodine-potassium iodide solution significantly reduced the levels of Streptococcus mutans in fissure and approximal plaques and in saliva. Reductions persisted 20-24 weeks after treatment in salivary and approximal samples. A prophylaxis alone exerted a small and temporary reduction of S. mutans in occlusal fissure plaque, but did not reduce the levels of this organism in approximal plaque or in saliva. A significant relationship existed between the levels of S. mutans in saliva and the proportions of this organism in plaque. The dorsum of the tongue does not appear to constitute a significant reservoir for S. mutans following disinfecting procedures.

Journal of Dental Research, Vol. 58, No. 4, 1317-1326 (1979)
DOI: 10.1177/00220345790580040301


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