Composite restoration (white filling)
A composite restoration, often called a white filling, is an esthetic and conservative treatment used to repair cavities, restore broken teeth or correct minor flaws. Thanks to its natural colour and its ability to bond, composite gives the tooth back its original shape, function and appearance while blending harmoniously with the rest of your smile.
Composite is now one of the most widely used materials in modern dentistry, because it offers a durable, esthetic and biocompatible way to preserve the health and integrity of teeth.
Why choose a composite restoration?
Composite restorations offer several advantages:
- Superior esthetics: the material mimics the colour and translucency of natural teeth.
- Tooth preservation: composite requires removing less healthy tooth structure than amalgam.
- Strong bond: the material bonds directly to the tooth, reinforcing its structure.
- Versatility: ideal for cavities, fractures, cosmetic repairs and small corrections.
- Biocompatibility: metal-free, mercury-free and well tolerated by the tissues of the mouth.
Is composite as durable as amalgam?
The durability of a restoration depends on several factors:
- daily oral hygiene
- eating habits
- chewing force
- position of the tooth
- size of the restoration
- bruxism or clenching
Each material has its advantages and limits, which makes an absolute comparison difficult. However, modern composites perform very well and last a long time when properly cared for.
A thorough dental care routine — brushing, flossing and regular visits — goes a long way towards extending the life of all restorations, whether composite or amalgam.
How do I care for a composite restoration?
To make it last:
- Brush your teeth twice a day.
- Floss daily.
- Avoid biting hard objects (ice, pens, very hard nuts).
- Limit heavily pigmented foods and drinks (coffee, red wine, tea).
- See your dentist regularly for exams and cleanings.
Does composite replace old grey fillings?
Yes, in most cases. Amalgam (grey fillings) is used less and less, notably because of its metallic appearance and the progress of modern materials.
However, amalgam is still useful in certain specific situations:
- areas that are hard to keep dry of saliva
- teeth far back in the mouth in some children
- cases where moisture prevents composite from bonding properly
In most situations, composite is preferred for its esthetics and its ability to blend in naturally with the teeth.
How is a composite restoration done?
- Assessing the tooth
The dentist examines the tooth and determines the extent of the cavity or fracture. - Local anesthesia (if needed)
For optimal comfort. - Cleaning and preparing the tooth
The damaged part is removed and the surface is prepared to receive the composite. - Applying the composite
The material is placed in thin layers, then hardened with a special light. - Shaping and polishing
The restoration is sculpted to reproduce the natural shape of the tooth, then polished for a smooth, esthetic finish.