Every 3 Months Sonicare recommends that you replace your brush head every 3 months to achieve optimal results

Braces Wearers
If you wear braces, you may need to replace your brush head slightly more often. Check for signs of wear. Our Compact brush head is especially efficient for people with braces and other site-specific cleaning needs. It is 40% smaller than our Standard brush head and has a slightly longer neck.