Toothbrushes haven't changed much in 200 years: handle, head, bristles . . . but you'll find myriad variations on these basic elements whenever you hit the oral-care aisle of your local drugstore. And the styles of flosses, threaders, and picks are unending. Do you really need all the bells and whistles? Or will that bag of free goodies you got from the dentist do? We've got some in-the-know advice on how to choose your dental tools.
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