DenTek has kicked off the 30-Day Family Floss Challenge to help parents and children create new, healthy oral hygiene habits and make flossing part of their oral health care routine. The dental care company has enlisted YouTube's family, the Eh Bees, to help spread the word. According to a recent survey conducted by DenTek and Propeller Insights, only one-third of consumers said they floss their teeth on a daily basis, while eight out of ten (83 percent) consumers who don't floss ev...