When's It DueHow often
How often should you replace toothbrush heads?
Every 3 months
Change a manual brush or an electric head about every three months, or sooner if the bristles splay. That is the interval NHS dental pages give, and it is the one we save by default.
Signs it is worn out — save it nowSave one of these
Toothbrush
Every 3 months
Philips Sonicare C1 ProResults 8 pack
Every 3 months
Colgate ProClinical Deep Clean refills
Every 3 months
Why replace it
NHS advice is every 3 months, sooner if bristles splay. Worn bristles clean less well and can irritate gums.
Signs it is worn out
- Bristles flare outwards or look flattened
- The head smells even after rinsing
- You cannot remember the last change — treat it as due
Source: NHS Wales: how often to change your toothbrush. As an Amazon Associate I earn from qualifying purchases.
Also worth tracking
- How often should you replace electric toothbrush heads?Every 3 months
- How often should you replace a BRITA water filter?About every 4 weeks
- How often should you replace a fridge water filter?About every 6 months
- How often should you replace a smoke alarm battery?Every 12 months, and test when the clocks change