How often should I replace my toothbrush? A dentist weighs in

When's the last time you replaced your toothbrush? For many people, the answer is 'too long ago.''The average person should be swapping out for a new toothbrush every three to four months,' Dr. Kevin Sands, a dentist based in Beverly Hills, told CBS News. 'This ensures that the bristles are still effective and bacteria accumulation on the toothbrush is minimal.

'For most people, using hot running water to rinse your toothbrush is usually enough to keep it clean on a daily basis,' Sands says. 'Hot water will help soften the bristles and release toothpaste and food particles.' Practicing proper storage is also key. 'Bacteria can easily grow on toothbrushes, so it's important to store them in a clean, dry place,' Sands says.That means no toothbrush caps or covers, which can trap microbes on your bristles.

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