Tooth Decay

Symptoms of tooth decay

Tooth decay may not cause any symptoms at first.

But if it gets worse it can lead to problems, such as a hole forming in the tooth (dental cavity).

If you have a hole in your tooth you may have:

toothache (tooth pain)
sharp pain in your tooth when eating or drinking hot, cold or sweet things (sensitive teeth)
white, brown or black spots on your tooth

Sometimes the tooth or gum can become infected, leading to a painful build-up of pus (dental abscess).

See a dentist if:

you have problems with your teeth like toothache or a sharp pain in your tooth when eating or drinking
your gums are painful, swollen, or bleed when you brush your teeth

Find a dentist

Get regular dental check-ups

You should have regular dental check-ups even if you do not have any problems. See a dentist if you have not had a check-up for 2 years (or 1 year if you're under 18).

Treatments for tooth decay

Treatment for tooth decay depends on how severe it is.

A dentist can prescribe fluoride treatments like mouthwash or varnish to reverse early tooth decay.

You'll probably need a filling if you have a hole (cavity) in your tooth.

If tooth decay has reached the soft tissue (pulp) in the middle of your tooth, you may need root canal treatment.

Sometimes the affected tooth may need to be removed (extraction).

Preventing tooth decay

Tooth decay happens when bacteria create a sticky layer called plaque over your teeth. This damages the surface of your teeth over time.

Tooth decay is common in children, so it's important to make sure they're looking after their teeth and gums from an early age.

There are some simple things you can do to keep your and your children's teeth and gums healthy and help prevent tooth decay.

Do

brush your teeth at least twice a day with fluoride toothpaste - spit after brushing, do not rinse
clean in between your teeth every day using floss or interdental brushes
use sugar-free medicines
have regular dental check-ups (your dentist will be able to advise you about how often you need to go)

Don't

do not have too much sugary food or drink
do not smoke
do not regularly drink more than 14 units of alcohol a week

Find out more

Looking after your baby's teeth

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