The American Dental Association recommends you change your toothbrush every 3-4 months. Or you could remind yourself to replace your old toothbrush for a new one every season. Using the same toothbrush for a long time will cause the bristles to fray and break. These bristles are not so helpful! Look for a toothbrush with the ADA’s seal of acceptance the next time you are shopping for a toothbrush. #toothbrush #ada.