A 23-year-old male asked:
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how often do i have to replace my toothbrush?

2 doctor answers
Dr. Michael Dansie
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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3 thanks
Dr. Sandra Eleczko
35 years experience Dentistry
Every 5 or 6 months: You should replace your toothbrush every 5 or 6 months, or after you have been sick.
Answered on Jan 3, 2014
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2 thanks

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3 months: It is recommended that you replace your toothbrush every 3 months.
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Dr. Heidi Fowler
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Toothbrush: The general recommendation is to replace the tooth brush (or the head on an electric toothbrush) every 3 months.
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Dr. Steven Pohlhaus
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Toothbrush for sure: If someone is diagnosed with oral syphilis a new toothbrush is a good idea. Normal dishwashing will clean the utensils adequately.
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