
For optimal oral hygiene, the Colgate 360 Sonic Charcoal Toothbrush bristle head should be replaced approximately every three months, or as recommended by your dentist. The bristles gradually lose their effectiveness over time, which can compromise the quality of your cleaning. Regular replacement guarantees the best possible clean. If you observe any signs of wear and tear or damage to the bristle head before the three-month timeframe, it's best to replace it sooner to maintain effective plaque removal.


