Fillings

A filling repairs a tooth damaged by decay or a small fracture. Treating a cavity early helps protect the tooth from bigger problems.

Illustration of a tooth with a tooth-coloured filling

What is it?

The dentist removes the decayed or damaged part of the tooth and fills the space with a tooth-coloured material (composite) that is shaped and hardened to restore the tooth. Local anaesthetic can be used to keep you comfortable.

When might you need it?

  • A cavity found at a check-up or on an X-ray
  • Sensitivity to sweet, hot or cold
  • A hole, dark spot or rough edge you can feel
  • A chipped tooth or an old filling that is broken or leaking

How it works

  1. Examination and X-ray if needed
  2. Local anaesthetic when appropriate
  3. Removing decay and cleaning the tooth
  4. Placing and shaping the filling material in layers
  5. Checking your bite and polishing

Possible benefits

  • Stops decay from spreading further
  • Restores chewing and the shape of the tooth
  • Natural-looking, tooth-coloured result

Limits and things to know

  • Mild sensitivity can occur for a few days
  • Deep cavities may need more treatment, such as root canal treatment or a crown
  • Fillings can wear or break over time and may need replacing
  • New decay can form around a filling without good cleaning

Aftercare

  • If you had anaesthetic, wait until the numbness wears off before eating
  • Brush twice daily with fluoride toothpaste and clean between teeth
  • Limit sugary snacks and drinks
  • Tell the clinic if your bite feels high or the pain doesn’t settle

Questions about Fillings

Does getting a filling hurt?

Local anaesthetic is used when needed, so most people feel only pressure. The area may be a little sensitive afterwards.

When can I eat after a filling?

Tooth-coloured fillings harden right away. If you had anaesthetic, wait until the numbness passes so you don’t bite your cheek or lip.

Can old fillings be replaced?

Yes, if a filling is broken, leaking or has new decay around it. The dentist checks whether replacement is needed.

Good to know

Small cavities often cause no pain at all. Regular check-ups help find them early, when treatment is simpler.

Every mouth is different. The right treatment, number of visits and results depend on an examination by the dentist.