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Mouthwash is a bedrock of oral hygiene. So why do some say it harms the mouth? The answer is a mix of misunderstanding and bad headlines.
The Human Microbiome Project of 2007 illustrated the mouth is home to hundreds of previously unrecognized good bacteria. Dentists used to call plaque “biofilm,” but plaque is a biofilm infection, and healthy biofilm is protective and the goal of good oral care. Studies show 40% of adult biofilm develops in childhood, which illustrates the tenacity of bi...
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