An old toothbrush cleans poorly and may injure the gums. Knowing when to replace it and how to store it makes daily brushing more effective.
- Replace a toothbrush or electric brush head about every three months.
- Splayed, bent or discoloured bristles, or a recent illness, are signs to replace sooner.
- An old brush cleans poorly and hard broken bristles can scratch the gums.
- Rinse, stand upright to dry in open air and never share a brush.
Many people keep using the same toothbrush for months, until the bristles splay in all directions before they think of replacing it. In reality a brush is worn out long before the eye can clearly see it, and it cleans the teeth much less well.
How often should you replace it?
The general rule is to replace your toothbrush about every three months. For an electric toothbrush, replace the brush head at the same interval or as the manufacturer advises. If you brush hard or the bristles splay quickly, you may need to replace it sooner.
Signs to replace it right away
- The bristles are splayed, bent or broken and no longer stand straight.
- The bristles have changed colour or faded at the tips.
- The brush has a strange smell, stains or mould.
- After you have been ill, especially with a cold, sore throat or mouth ulcers, switch to a new brush.
- The brush has been shared or has fallen somewhere dirty.
Why is an old brush harmful?
Splayed bristles can no longer slip into the gumline and between the teeth, so more plaque is left behind. Hard, broken bristles can scratch the gums, contributing to recession and sensitivity. You can read soft or hard bristles to choose a suitable one.
How should you store a toothbrush?
- Rinse the brush well under running water after use and shake it dry.
- Stand it upright with the head up in an airy place, and do not cover it while wet.
- Do not let brushes touch each other and never share a brush.
- Do not keep it right beside the toilet.
How do you choose a brush?
Choose a soft brush with a small head that fits the mouth so it can reach the back teeth. See electric or manual toothbrush and how to brush correctly every day.
When should you visit Ky Hoa Dental Clinic?
If you brush regularly but your gums still bleed, your teeth are sensitive or tartar builds up a lot, have a check so the dentist can advise a suitable brushing method. Nha Khoa Ky Hoa is at 266A - 268, 3 Thang 2 Street, Hoa Hung Ward, Ho Chi Minh City. You can walk in during opening hours, or call the hotline 028.3868.1097 to ask about quieter times first.
Frequently asked questions
Does an electric toothbrush head need replacing?
Yes. A worn head cleans poorly just like a manual brush, so replace it about every three months or as the manufacturer advises.
Should I replace my toothbrush after being ill?
It is advisable, especially after a cold, sore throat or mouth ulcers, so that bacteria are not brought back into the mouth.
Should I keep a toothbrush in a closed case?
Not while it is still wet, because dampness lets bacteria and mould grow. Let it dry in open air.