10 Ways to Repurpose Your Old Toothbrushes

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I am slightly anal retentive about getting all of us to the dentist twice a year.  Of course at each of these dentist appointments we get a free toothbrush to take home with us.  That means 8 old toothbrushes need to find new uses every single year.  On top of that, I tend to replace toothbrushes randomly when they are looking particularly worn or someone has a nasty cold or strep throat.  I am always looking at those old toothbrushes and wondering what in the world I can do with them besides throw them in the trash can.  I have seen ecofriendly toothbrushes at places like Whole Foods that are made from compostable corn or recycled plastic but those don’t come free from my helpful dentist so I don’t tend to buy them. I decided I needed to put together a list of things that I could do with our old toothbrushes so I can stop feeling so guilty every time one ends up in the trashcan.

How to Reuse Old Toothbrushes

Base Photo Courtesy of Morguefile

10 Ways to Repurpose Your Old Toothbrushes

1.  Clean the dog’s teeth:  They make fancy doggie toothbrushes but couldn’t I just use one of our old toothbrushes instead?  Along with some doggie toothpaste I bet it would go a long way towards freshening up her breath!

2.  Bathroom faucet cleaning:  I know I’m not the only one who gets that nasty buildup at the bottom of the sink faucets.  Old toothbrushes are great for scrubbing that away.

3. Clean computer keyboards:  All that crud that falls in between your keys because you are snacking while you type?  Old toothbrushes are great for getting into those crevices!

4. Clean jewelry:  If you wedding ring is looking a little bit dull just use an old toothbrush along with some jewelry cleaner and get it looking brand new.

5.  Scrub your nails:  After gardening I always have tons of dirt under my nails.  Old toothbrushes are just like fancy nail brushes only much cheaper!

6. Clean your cheese grater:  I hate trying to get the cheese grater clean, especially when my wash rag just gets stuck in those sharp little holes!

7.  Let your kids get artistic:  Hand your kids an old toothbrush, some paint and some paper and see what sort of masterpiece they can come up with.

8. Garden markers:  Use a sharpie to write on the handle of your toothbrush and bury the ‘head’ in the soil.  Now you know where your tomatoes are and which plants are your peppers!

9. Remove crayon marks from the wall:  Along with a bit of shaving cream, you can scrub crayon marks off the wall with your old toothbrushes.

10. Remove mud from the treads of sneakers: Instead of having your kids leave bits of dried mud all over the house, clean the soles of their sneakers with old toothbrushes.

So, what do you do with YOUR old toothbrushes?

About Diane

Diane has a Bachelor’s degree in Microbiology with a Minor in Health Management and Policy. She spent many years working in cancer research, academics, and biotechnology. Concern over the growing incidence of human disease and the birth of her children led her to begin living a more natural life. She quickly realized that the information she was learning along the way could be beneficial to many others and started blogging as a way to share this knowledge with others. While passionate about health and the environment she can't quite give up her favorite Cheetos and Diet Coke!


  1. I would never have thought to use an old toothbrush on the dog! We do use them to clean jewelry.
  2. These are some amazing ideas. I would have never though to use an old tooth brush to clean my cheese grater, they are so very hard to clean, and now it will be much easier.
  3. Yes, we use ours for everything around the house. They make the best cleaning utensils.
  4. I use mine for jewelry and bathroom cleaning as well! Kas
  5. I like the idea of using them as a garden marker or a craft tool!
  6. I never would have thought of a few of those, like the garden tool or to clean out the cheese grater. I never thought of giving it to the kids to use to paint.

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