White wine can increase tooth staining

by New York University press release

MIAMI, FL, USA: Researchers from New York University presented their findings about white wine and tooth staining during the recent International Association for Dental Research annual meeting, which took place here 1–4 April.

Using two sets of cow teeth, study results showed that soaking the teeth in white wine for one hour before exposure to black tea produced significantly darker stains than when the teeth were soaked in water for one hour prior to exposure to black tea.

The one-hour soak in white wine, which is the equivalent of sipping the wine during dinner, allows wine acids to create grooves and rough spots on the teeth that grant tooth-staining beverages deeper tooth penetration. However, red wine causes significantly greater tooth staining due to the chromogen it contains, a highly pigmented substance that is not found in white wine.

For more information, visit www.nyu.edu.

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