Change your toothbrush or the replacement head on your electric or battery-powered toothbrush at least every three to four months. Change it sooner if it becomes frayed. Keeping a toothbrush for too long makes it difficult to clean your teeth well, and it may contribute to bad breath or other oral health problems.
July 15, 2014
- Oral health: Brush up on dental care basics. MayoClinic.org. http://www.mayoclinic.org/healthy-living/adult-health/in-depth/dental/art-20045536. Accessed April 29, 2014.