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Originally Posted by DanaC
This is a more important debate than ever imo, with some of the recent studies seeming to show a causal link between toothdecay and some types of heart disease.
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The link was correlative, not causative. It should be noted that the mouth is just the top end of the alimentary canal. Mouth, esophagus, stomach, small intestine, large intestine: all should be colonized with good bacteria. It is more likely that the set of health conditions that cause an overabundance of bad bacteria in the mouth (say, for example, diet and overall pH of the body) also affect the heart. Fixing the teeth doesn't fix the heart.