A 23-year-old male asked:
how often do i have to replace my toothbrush?
2 doctor answers
Dr. Michael Dansie answered
15 years experience Family Medicine
Every 3-4 months: The american dental association recommends throwing out your toothbrush every three to four months. If the bristles become frayed, you're sick, or you have a weak immune system, throw it out even more often. If you use an electric toothbrush, throw out the head as often as you'd discard a disposable toothbrush.
Answered on May 2, 2013
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