What is it?
A filling is a material placed to replace tooth structure lost through decay or fracture. The decay is removed and the resulting cavity is filled so that the tooth regains its shape and function.
Today the most commonly used material is composite resin, which can be matched to the colour of the tooth. For back teeth with extensive loss of structure, ceramic or composite fillings made in a laboratory from an impression (inlays, onlays) may also be an option.
Who may it suit?
- Teeth with decay
- Teeth with small chips or cracks
- Teeth with wear or loss of structure at the gum line
- Old fillings that have started to leak at the edges
Decay does not always cause pain. Early decay is often detected only by examination and X-ray. If the decay has reached the nerve of the tooth, root canal treatment may be needed before the filling.
How does the process work?
- Examination and, if needed, an X-ray. The location and depth of the decay are determined.
- Local anaesthesia. The area is numbed if necessary.
- Removing the decay. Decayed tissue is removed and healthy tissue is preserved.
- Placing the filling. Composite material is placed in layers and hardened with a special light.
- Shaping and polishing. The filling is adjusted to the bite and polished.
Composite fillings are usually completed in a single visit. Laboratory-made fillings require an impression and a second visit.
Frequently asked questions
Will my tooth be sensitive after a filling?
Especially after deep fillings, there may be sensitivity to hot, cold or chewing for a few days. If the sensitivity continues or gets worse, you should let your dentist know.
When can I eat after a filling?
A composite filling is hardened with a light, so it is set when the procedure ends. If you had an anaesthetic, it is advisable not to eat until the numbness wears off, so that you do not bite your lip or cheek.
How long do fillings last?
The life of a filling depends on its size, the position of the tooth, oral hygiene, habits such as clenching, and diet. Its edges and surface are checked at regular examinations.
Do my old fillings need replacing?
Fillings that are intact and not leaking do not always need to be replaced for appearance alone. The decision is based on examination and X-ray findings.
Whether it is suitable for you is determined by an examination.