How Often to Change Your Toothbrush for a Healthier Mouth

From Dr. Joseph Mercola DO

STORY AT-A-GLANCE Most people need a new toothbrush every three to four months, although there are exceptions when the brush needs to be replaced earlier Toothbrush contamination occurs naturally from biofilm, moisture, and bathroom aerosols, but you can minimize it by rinsing thoroughly after use, storing upright and uncovered, and keeping your brush several feet […]

Nov 17th 2025 10:31pm EST

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