Most dentists agree with the ADA (American Dental Association) that you should switch your toothbrush every 3-4 months, and even sooner if the bristles are worn out. It’s not as much about the time frame but about the condition of the bristles. If you aren’t sure if your brush’s bristles are worn out, check to see if they’re sticking out in every which direction.
To help keep your toothbrush and your teeth in tiptop shape, rinse your brush in tap water and let it air dry. Store it upright, not on its side. If you’re really concerned you can always soak your toothbrush in alcohol or mouthwash to kill the germs. You may even consider dipping it in boiling water for 5-10 seconds.
Here’s what you should never do: heating or washing your toothbrush in the microwave or dishwasher. You’ll end up doing more harm than good.
A simple task like replacing a toothbrush might slip your mind so some easy reminders may help. Look for color-changing bristles! Some toothbrushes have color-changing bristles that indicate it’s time to be thrown out. Another easy reminder is to change your toothbrush on the first day of every new season. Getting a new color to indicate each season (let’s say pink for summer, orange for fall, white for winter, and blue for spring).
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