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Journal of Dental Research, Vol 56, 895-899, Copyright © 1977 by International & American Associations for Dental Research Online Journals

ARTICLES

Investigations into black extrinsic tooth stain

J. S. Reid, J. A. Beeley and D. G. MacDonald

An investigation has been carried out into the nature of the black pigment in black extrinsic tooth stain. The results suggest that the black material is a ferric salt, probably ferric sulfide, formed by the reaction between hydrogen sulfide produced by bacterial action and iron in the saliva or gingival exudate.




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Journal of Dental Research ® Critical Reviews (1990-2004)
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