June 22, 2007

Wine May Curb Cavities, Study Shows

In Lab Tests, Red And White Wine Countered Cavity-Causing Bacteria

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(WebMD)  Even with the alcohol removed, red wine and white wine may fight bacteria that cause cavities, an Italian study shows.

Before you toast the findings, remember that the study was done in test tubes. So it's too soon to count on a glass of wine to chase your cavities away.

The researchers, who work at Italy's University of Pavia, included Gabriella Gazzani, Ph.D.

First, they went to a local grocery store, where they bought some valpolicella (an Italian red wine) and pinot nero (an Italian white wine).

Back at their lab, the researchers stripped the alcohol out of the wine. They did that to prevent ethanol from interfering with their lab tests.

Next, the researchers marinated cavity-causing streptococcal bacteria in the wines. Both types of wine countered those bacteria and other streptococcal bacteria that cause some cases of throat infection.

Red wine might have had more antibacterial properties than white wine, but that wasn't certain, Gazzani's team notes.

The researchers also isolated acids found in red wine and white wine and tested those acids against the same bacteria, which are called S. mutans and S. pyogenes.

The isolated acids were more effective against the bacteria than the wines. So the researchers reason that while wine fights S.mutans and
S. pyogenes, wine also contains compounds that dilute those benefits, to some extent.

The study appears online in the Journal of Agricultural and Food Chemistry.


  • Looking for ways to keep your teeth healthy? Join others on WebMD's Dental Health Support Group message board.




By Miranda Hitti
Reviewed by Louise Chang, M.D.
© 2007 WebMD, Inc. All rights reserved.
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Add a Comment
by rushman71 June 25, 2007 6:58 PM EDT
Red, Red Wine....
Come back to meeeeee......
Reply to this comment
by middleman8 June 25, 2007 2:00 AM EDT
I'LL ONLY BELIEVE STUDIES DONE ON MICE AND WHITE RATS.
Reply to this comment
by extremophil June 24, 2007 10:23 PM EDT
I don't know if the study has merit or not, but I'm not taking any chances......Cheers!
Reply to this comment
by grammawhamma June 24, 2007 5:53 PM EDT
Geez...what kind of "study" will they waste money on next!!??
Reply to this comment
by incog-nito June 24, 2007 4:32 AM EDT
This would explain the gleaming pearly whites on the winos you see on the streets.
Reply to this comment
by incog-nito June 24, 2007 4:09 AM EDT
Maybe so, but the stains on your teeth won't win you too many friends anyway.
Reply to this comment
by June 23, 2007 4:09 PM EDT
Wine also causes babies as well
Reply to this comment
by hypnotoad72 June 23, 2007 11:38 AM EDT
But being inebriated increases your chance of acquiring a STD!

Now, which seems more palatable now? :-)


Besides, if nothing else, drink a shot of Listerine. That's probably the best of both worlds...
Reply to this comment
by June 23, 2007 6:05 AM EDT
Before you toast the findings, remember that the study was done in test tubes. So it's too soon to count on a glass of wine to chase your cavities away.


They could have stopped the story right there
Reply to this comment
by tmn June 23, 2007 4:55 AM EDT
(hiccup) I'll drink to that...
Reply to this comment
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