From a dentist's perspective, toothbrushes have a limited lifespan: Bristles can fray after months of use, rendering them less effective in removing harmful dental plaque. The American Dental Association therefore recommends a new brush at least every three to four months.
From a user's perspective, that's not that big a deal—toothbrushes are relatively inexpensive and plentiful in stores selling oral hygiene products. In fact, many dentists give their patients a new toothbrush after each dental cleaning.
But there's still another perspective: Mother Earth. Too many of those used toothbrushes end up in the trash. With potentially billions of disposed toothbrushes each year, this essential dental care tool could well be a significant contribution to our planet's overflowing waste problem.
Fortunately, you don't have to consign your used toothbrush to the landfill. After a sanitizing run through the dishwasher, there are dozens of ways to re-purpose your old brush. In recognition of Earth Day, April 22, here are a few of them.
Kitchen cleanup tool. Your kitchen is likely filled with various utensils and small appliances like toasters or blenders that contain lots of nooks and crannies. These spaces can quickly fill up with spills or food debris. With their narrow heads and long handles, old toothbrushes are ideal for tidying up your hard-to-clean kitchen equipment.
Tile grout cleaner. Those narrow bristles also make toothbrushes a great tool for cleaning bathroom tile grout. Simply apply your favorite cleaner, or a little baking soda added to water, and let your old toothbrush do the rest. A toothbrush is also handy for cleaning around other tight spaces around the sink, tub or toilet.
Personal hygiene aid. After retiring from teeth cleaning, your brush can still play a role in personal hygiene. Use if for cleaning under fingernails, removing hair from hair brushes or even getting your eyebrows in good order. They're also handy for applying hair dye if you can't lay your hands on the regular application brush.
Miscellaneous task helper. A used toothbrush can be useful for tasks in and out of the house. Inside, it can help you remove your child's crayon art from walls or tackle stubborn clothes stains. Outside, it's handy for cleaning different parts of your car, the soles of your shoes or grimy bicycle chains. When you need something small and narrow, a toothbrush might just fill the bill.
Have more than enough used toothbrushes? Then consider recycling the next one, if your local program allows it. In its separated components your toothbrush can thus continue to be useful—and not another piece of clutter on our beautiful planet.