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Tooth stain

Study Finds Teeth Stain More Permanently From Coffee Than Tobacco

A recent study, published in the Journal of the American Dental Association, evaluated the stain removal ability of toothbleaching and simulated toothbrushing after coffee and cigarette smoke staining. In addition, researchers determined the enamel susceptibility to restaining.

Using a colorimeter to determine the baseline color of 40 bovine labial enamel surfaces, researchers immersed half of the samples in coffee and exposed the other half to cigarette smoke in a smoking machine, then evaluated the stain removal ability of toothbleaching and simulated toothbrushing after the coffee and cigarette smoke staining.

According to the report, both staining procedures resulted in similar discoloration. “The specimens stained with coffee and cigarette smoke showed a significant reduction in color change after bleaching,” the authors wrote, but only the cigarette smoke-stained samples showed significant color reduction from toothbrushing.

The authors concluded that 6 percent hydrogen peroxide at-home bleaching
removed both coffee and cigarette smoke staining. However, restaining potential was greater for the tooth surfaces stained with coffee than for those stained with cigarette smoke, regardless of the removal method used. Finally, authors wrote, continued frequent consumption of coffee can increase the staining susceptibility of enamel.

See the full report in the Journal of the American Dental Association, vol. 143:5, May 2012.


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Dentist in Calgary AB on Friday, April 12, 2013 5:38 AM
Avoiding these food stuff is the only best way to stay away from teeth staining.
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