Cavities, periodontal disease and tooth loss affect an estimated 60 to
90 % of the global population. The problems arise when certain bacteria
in the mouth get together and form bio films, which are communities of
bacteria that are difficult to kill. They form plaque and produce acid,
which then starts damaging teeth. M. Victoria Moreno-Arribas, from the Institutor de Investigacion en Ciencias de la Alimentary (CIAL),
CSIC-UAM (Spain), and colleagues grew cultures of bacteria responsible
for dental diseases as a bio film. They dipped the bio films for a couple
of minutes in different liquids, including red wine, red wine without
the alcohol, red wine spiked with grape seed extract, and water and 12
percent ethanol for comparison. Red wine with or without alcohol and
wine with grape seed extract were the most effective at getting rid of
the bacteria.
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