Marisa Hunter is meticulous about keeping her teeth clean. After all, as a model, she has to make sure her pearly whites look perfect for the camera. But while her teeth are spotless, what about her toothbrush? Inside Edition sent Hunter's and her fiance's toothbrushes off to a lab to get tested and see what bacteria and other critters might be lurking in the bristles. So how dirty were those toothbrushes? As it turns out, pretty filthy.