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Study Finds Teeth Stains Are More Permanent from Coffee Consumption Than Tobacco Use
Researchers Also Examine The Stain Removal Ability Of Various Tooth Bleach And Stain Fighting Toothpastes
Published in the Journal of the American Dental Association (Vol. 143:5, May 2012), researchers sought to evaluate the stain removal ability of tooth bleaches and toothpastes with regard to coffee and tobacco, they also found that coffee stains tooth enamel more permanently than staining from tobacco and leaves the enamel more susceptible to restaining. By testing the baseline color of 40 bovine labial enamel surfaces with a colorimeter, they subjected the half of the samples to coffee immersion and the other half to tobacco utilizing a smoking machine. The end result produced significant discoloration in both groups and at similar levels, but only the tobacco group showed a pronounced reduction of staining after being treated with stain fighting toothpaste. Both groups were then subjected to a 6% hydrogen peroxide at home bleaching system that was successful in removing all of the discoloration. Researchers were able to further determine that regardless of the stain removal method used, the coffee group has a higher restaining potential then the tobacco group leading them to conclude that coffee consumption can increase the staining susceptibility of tooth enamel when compared to tobacco use.
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