Is It Time to Replace Your Toothbrush? Here’s What You Need to Know

 You use it every day—morning and night—but how often do you really think about your toothbrush?

At Preston Dental Group, we often ask patients when they last replaced theirs. The most common answer? “I can’t remember.” The truth is, an old or worn toothbrush doesn’t clean your teeth effectively—and it can even do more harm than good.

Here’s how to tell if it’s time for a fresh one, and how to choose the right brush for your smile.

How Often Should You Replace Your Toothbrush?

According to dental experts (and yes, that includes us), you should replace your toothbrush every three months. That goes for manual brushes and electric brush heads alike.

But there are some situations where you should switch sooner:

  • After recovering from a cold, flu, or infection

  • If the bristles are frayed or worn

  • If your brush has been stored improperly (like touching another brush or left wet in a drawer)

  • If it has a bad smell or discolouration

Worn bristles can’t clean your teeth properly, especially around the gum line. And if the brush is harbouring bacteria, it could even make you sick.

Signs Your Toothbrush Needs to Go

Not sure if your brush has had it? Look for these tell-tale signs:

  • Bristles look frayed, flattened, or bent outwards

  • Your teeth don’t feel as clean after brushing

  • There’s a build-up of toothpaste gunk at the base of the bristles

  • You see mould or discolouration on the handle or head

  • It’s been sitting in a travel bag for weeks (hello, germs!)

A good rule of thumb: if your brush looks tired, it probably is.

Manual vs Electric: Which One’s Better?

Both can be effective if used properly—but here’s a quick breakdown:

Manual toothbrush:

✔ Affordable and portable
✔ Easy to control pressure
✔ Great when used with proper technique

Electric toothbrush:

✔ More effective for removing plaque
✔ Easier for those with limited dexterity
✔ Often includes a timer to help brush for the full 2 minutes

Whichever you choose, the key is brushing twice a day with gentle pressure and replacing the brush or head regularly.

Extra Tips for Toothbrush Care

  • Rinse thoroughly after each use

  • Let it air dry upright—don’t cover it while still wet

  • Don’t share toothbrushes—even with family

  • Store it away from the toilet and other brushes

  • Keep a backup brush for travel or emergencies

Proper care keeps your toothbrush clean, your mouth healthy, and your brushing effective.

Need More Dental Tips? We’re Here to Help.

Looking after your teeth starts with the basics—and your toothbrush is one of the most important tools you’ve got. If you’re unsure about the best brush for you, or if it’s been a while since your last check-up, we’d love to help.

At Preston Dental Group, we offer gentle, thorough dental care for the whole family—right here in the heart of Preston.

659 Bell St, Preston VIC 3072
(03) 6164 3616
info@prestondentalgroup.com.au

Book a visit with your local dentist in Preston today, and let’s keep that smile sparkling—starting with the right brush.

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