General and dental pathology with special reference to etiology and pathologic anatomy; a treatise for students and practitioners . structure. This investigator was able tostain enamel, dentin and cementum in the laboratory with a ma-jority of dentifrices on the market. Tooth structure was likewisestained in the course of his laboratory experiments by dentifriceswhich did not contain added coloring matter or dyes, the pig-mentation in these instances being due to the ingredients in thedentifrices which possess color. The stains were found to be pene- ^IcGehee, W. H. O.: Dental Cosmos, March, 1
General and dental pathology with special reference to etiology and pathologic anatomy; a treatise for students and practitioners . structure. This investigator was able tostain enamel, dentin and cementum in the laboratory with a ma-jority of dentifrices on the market. Tooth structure was likewisestained in the course of his laboratory experiments by dentifriceswhich did not contain added coloring matter or dyes, the pig-mentation in these instances being due to the ingredients in thedentifrices which possess color. The stains were found to be pene- ^IcGehee, W. H. O.: Dental Cosmos, March, 1912. 348 DENTAL PATHOLOGY trating, and not to be affected by sunlight or continued it was found by the same experimenter that vital teethin the mouth are occasionally stained by the use of colored denti-frices. It was brought out that nonvital teeth stain much morereadily than vital teeth, and that vital and nonvital dentin andcementum, whenever exposed, readily take almost any stainwith which they come in contact, as they are found discolored inpractically every instance in which they have been exposed for.
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectpathology, bookyear19
