New research by the New York University College of Dentistry has shown that white wine can stain teeth.
(PRWEB) April 5, 2009 -- Scientists have discovered that drinking white, as well as red wine can lead to staining of the teeth.
The research by the New York University College of Dentistry showed that the acids in white wine create grooves and rough spots in teeth that allow chemicals in drinks like tea and coffee to penetrate deeper into the tooth, leading to staining.
The scientists dipped two sets of cow teeth, whose structure resembles that of human teeth, in water and white wine for one hour and then soaked them in black tea. An instrument that measures colour intensities then proved that the teeth immersed in tea had significantly darker staining.
The study showed that red wine is still the deadliest of drinks, due to a highly-pigmented substance in red wine known as chromogen.
Professor Mark Woolff, who led the study, said, "Dipping teeth in white wine for one hour is similar to the effect of sipping the wine with dinner."
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