What is the recommended toothbrush replacement frequency?

The recommended frequency for replacing a toothbrush is every three to four months. This timeframe is based on the wear and effectiveness of the toothbrush bristles. Over time, bristles become frayed and less effective at cleaning teeth. A worn toothbrush may not clean effectively, which can lead to inadequate plaque removal and potentially poor oral hygiene outcomes.

Additionally, it is advised to replace your toothbrush sooner if you've been ill, as bacteria can linger on the bristles and potentially lead to reinfection. Maintaining a regular replacement schedule helps ensure optimal cleaning efficacy and supports better dental health. This practice is consistent with guidelines provided by dental associations that emphasize the importance of using a toothbrush that is in good condition for effective oral care.