How Often Should I Replace My Toothbrush?
Replace your toothbrush every 3-4 months, or sooner if the bristles are frayed. Also replace after illness to avoid reinfection.
| Item | Frequency | Signs It Needs Attention |
|---|---|---|
| Toothbrush | Every 3–4 months | Bristles are frayed, bent, or splayed, Bristles have lost their color (on indicator brushes) |
Why This Matters
Worn toothbrush bristles can't reach between teeth or along the gumline effectively. Studies show a new toothbrush removes up to 30% more plaque than a 3-month-old brush.
4 Signs You Need to Replace Your Toothbrush Now
- Bristles are frayed, bent, or splayed
- Bristles have lost their color (on indicator brushes)
- It's been more than 3 months
- You've been sick with a cold, flu, or mouth infection
Pro Tips
- 1Set a quarterly reminder to replace your toothbrush
- 2Store your toothbrush upright to air dry
- 3Don't share toothbrushes
- 4Consider an electric toothbrush with a replacement head reminder
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Frequently Asked Questions
Are electric toothbrush heads replaced at the same frequency?
Yes, replace electric toothbrush heads every 3 months, just like manual brushes.
Can I sanitize my toothbrush instead of replacing it?
Sanitizing helps between replacements but doesn't restore worn bristles. Replace on schedule.
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