In order to understand how effective red wine is in preventing the growth of biofilm, researchers developed a biofilm model of plaque that combined five types of bacteria most commonly found in gum disease and tooth decay. The biofilm cultures were then dipped in numerous varieties of wine – with and without alcohol – for a couple of minutes. The results showed that all red wine and red wine containing grape seed extract were more likely to get rid of the bacteria. Of course, the study wasn't designed with excessive drinking in mind; everything in moderation! Rather, as the researchers said, "these findings contribute to existing knowledge about the beneficial effect of red wines (one of the most important products of agriculture and food industries) on human health." We'll drink to that – cheers!