Spring Cleaning: How Often Should You Replace Your Toothbrush?
How often should you replace your toothbrush? According to the CDC, the short answer is every 3 to 4 months, or sooner if the bristles look worn or frayed. Although you might think a worn toothbrush still works just fine, studies suggest worn bristles are much less effective at removing plaque and bacteria. Since plaque is difficult to see,…