A dental crown can repair and protect a tooth that has been broken, weakened by decay or damaged by a very large filling. It fits over the remaining tooth to restore its strength, shape and appearance.
Why might I need a crown?
Your dentist may recommend a crown when a tooth needs more support than a filling can provide. A crown may be suitable if:
- a tooth is broken, cracked or heavily filled
- decay has weakened a large part of the tooth
- a discoloured filling or tooth is affecting the appearance of your smile
- the tooth has had root canal treatment and needs protection
- a crown is required to support a bridge or help secure a denture
What are dental crowns made from?
Crowns can be made from several materials. Your dentist will recommend an option based on the position of the tooth, how much pressure it needs to withstand and the appearance you would like.
Porcelain bonded to metal
A strong metal base is covered with layers of tooth-coloured porcelain. This combines durability with a natural-looking finish.
All-porcelain crowns
Porcelain crowns can provide a highly natural appearance and are often considered for visible front teeth. Their suitability depends on the forces placed on the tooth.
All-ceramic crowns
Modern all-ceramic crowns are metal-free and are designed to combine strength with a natural appearance. They may be suitable for teeth in different areas of the mouth.
Glass and gold-alloy crowns
Glass crowns can look very natural, while gold-alloy crowns are exceptionally hard-wearing. Gold-alloy restorations are metallic in colour and may be recommended where strength is the main priority.
What happens during crown treatment?
The tooth is prepared so the crown can fit securely over it. An impression or digital scan is then used to make the restoration. A temporary crown may be fitted while the final crown is produced. At the fitting appointment, your dentist will check the appearance, bite and fit before securing it in place.
Looking after a dental crown
A crown still relies on the tooth and gum around it remaining healthy. Brush twice a day with fluoride toothpaste, clean carefully between your teeth and attend regular dental examinations. Your dental team will show you how to clean around the crown effectively.
