What It Means
Toothbrush replacement means retiring a used toothbrush and starting a new one on a regular schedule. The American Dental Association (ADA) advises a new brush about every three to four months, and sooner when the bristles become matted or frayed. Bristles lose their shape with use, and a worn brush cleans teeth less well than a fresh one.
Try It: Is This Toothbrush Due for Replacing?
Slide to how many months you've used this toothbrush, and tick the box if the bristles look worn.
Keep using it. Rinse it after brushing and stand it upright to dry.
It's in the ADA's 3 to 4 month window. Swap in a new one.
Replace it now. Worn bristles clean less well, per the ADA.
How It Sounds at Home
- "Your toothbrush looks like it went through a lawnmower."
- "New toothbrushes are in the bathroom drawer."
- "I just changed mine at the start of the month."
The Breakdown
How often, per the American Dental Association
| When | What to do |
|---|---|
| After every brushing | Rinse the brush well to wash away toothpaste and debris |
| Between uses | Stand it upright in the open so it air dries |
| Every 3 to 4 months | Replace it with a new one |
| Bristles matted or frayed | Replace it sooner, whatever the date |
Make each brush last its full three to four months. Rinse it under the tap after you brush, shake off the water, and keep it upright in a holder rather than lying flat or shut in a case. A dry brush between uses is what the ADA is after. Look at the bristles once a week or so: if they splay out to the sides instead of standing straight, that brush is done, even if it's only a few weeks old.
A simple household routine. Buhata's suggestion: pick one date each season, such as the first of January, April, July and October, and change everyone's brush at once. That lands inside the ADA's window and keeps a spare pack on the shopping list.
Good to Know
The American Dental Association notes that keeping a damp toothbrush in a closed container encourages more microbial growth than letting it dry in the open air. Travel caps are fine for a trip, but take the brush out and let it dry when you arrive. If you use a powered toothbrush, check its manual for how often the maker says to change the brush head. Questions about your own teeth or gums go to your dentist.
FAQ
How often should you replace your toothbrush?
About every three to four months, according to the American Dental Association. Replace it sooner if the bristles are matted or frayed.
Why does an old toothbrush matter?
The ADA explains that a brush cleans less well as its bristles wear. That's why the date matters less than the bristles: a brush that frays early gets replaced early.
Should I keep my toothbrush covered?
Not between everyday uses. The ADA says a moist brush in a closed container grows more microbes than one stored upright and left to air dryLine dryingDrying laundry by hanging it on a clothesline, rack or bar to air dry, indoors or outdoors, instead of using a tumble dryer. See more.
Do It in Buhata
Tasks with a repeat
Add "Replace toothbrushes" as a task in Buhata with a repeat every 3 months, and put a new pack on the Shopping list when it comes due.
Open BuhataRelated Terms and Categories
- Sponge replacement
Swapping a kitchen sponge for a new one on a schedule, which Cleveland Clinic puts at least every other week, or sooner if it looks or smells off.
- Bathroom deep clean
A top-to-bottom bathroom cleaning that reaches grout, tub, toilet, floor and fixtures. The ACI's routine puts it every two weeks.
- Towel washing frequency
How often to wash towels. Cleveland Clinic advises at least once a week for bath towels, and more often in a humid bathroom or when someone is sick.
Sources
American Dental Association, "Toothbrushes" (Oral Health Topics); American Dental Association, MouthHealthy, "Toothbrushes"
- www.ada.org/resources/ada-library/oral-health-topics/toothbrushes
- www.mouthhealthy.org/all-topics-a-z/toothbrushes
Last updated .