With the flu season upon us, remember to change your toothbrush when you get sick. You don’t want to re-infect yourself. You should also remember to change your toothbrush when the bristles of the toothbrush head are flared or don’t standup straight. For some this could be every 3 months, for some younger children who might chew on the head of the toothbrush, this could be every 3 weeks. Just remember, you can’t brush effectively when the bristles are wore.