It's been researched: http://www.rdhmag.com/articles/print/volume-24/issue-9/columns/periodontics/moving-bacteria-around.html http://www.rdhmag.com/articles/pr

It's been researched: http://www.rdhmag.com/articles/print/volume-24/issue-9/columns/periodontics/moving-bacteria-around.html http://www.rdhmag.com/articles/print/volume-24/issue-9/colum... Bacteria already have a great chance to move around the mouth. Healthy pockets are healthy not because they haven't been exposed to bacteria, but because they are place bacteria can't get a foothold.