Dentistry: David E. Barnes, D.D.S.

Q: How long should I use my toothbrush before I buy a new one?

A: That depends on several factors. I would replace it every time you have your teeth cleaned. It should be replaced after having a cold or flu due to bacteria accumulation in the bristles. It should be replaced if the bristles fray or flare out. Under any circumstances I would replace it at least every 60 days, more often if you are being treated for gum disease.

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