Replace your toothbrush (or your mechanical toothbrush’s head) every 3 months. This keeps germs, bacteria, and fungus from building up on your brush.
You should also get a new brush
Whenever the bristles start poking out in different directions—this can injure your gums and make it harder to reach all the nooks and crannies in your mouth where plaque and food debris can hide- After you have recovered from an illness, especially a cold, cold sores, the flu, mononucleosis, sinusitis, strep throat, and tonsillitis—you don’t want to encourage germs and bacteria to linger
- If your teeth become overly sensitive—you may need a softer brush or a different configuration of bristles
- If your toothbrush has been exposed to impure water or anything else you don’t want in your mouth
How long has it been since you replaced your toothbrush?