For wine lovers, the results of a new study provides more reasons to pour a glass of red wine guiltlessly. Scientists have found that it could be good for your teeth. According to research published in the Journal of Agricultural and Food Chemistry, red wine contains ­antimicrobial elements that were found to help kill bacteria in simulated lab tests.
The same effect was observed for grape seed extract. Drinking a shot of grape seed oil, however, is much less appetizing. Cavities, gum disease and tooth loss are caused by the accumulation of bacteria in the mouth. Together, they form biofilms — ­communities of bacteria that turn into plaque, ­produce acid, and are ­difficult to kill.
Previous research suggested that polyphenols can slow ­bacterial growth. To test the theory under realistic conditions, Spanish and Swiss scientists grew ­cultures of ­mouth-mimicking bacteria and dipped the biofilms in different liquids such as red wine, alcohol-free red wine, red wine spiked with grape seed extract, water and 12% ethanol. Of the different liquids, the three forms of red wine were the most effective at ­eliminating the bacteria.
Researchers say their findings could be used to harness the cavity-fighting powers of red wine and incorporate them into products like ­mouthwashes and ­toothpaste. However, before tipping back your third glass of Cabernet, keep in mind that red wine is also known to stain teeth.So pair red wine with a calcium-rich hard cheese, which acts as a polish and wax for teeth.