Q: What do you think of ultraviolet toothbrush sanitizers? A: I think they are good to have, considering they don't cost much and have been shown to kill more than 99.9% of pathogenic bacteria that ...

Bad news: Your toothbrush is probably way germier than you know. Millions of bacteria can collect on the bristles, and those germs can live for up to a few weeks. Dental guidance suggests replacing ...