Dental inlays and onlays

If part of your tooth is damaged, worn, or affected by decay, your dentist may recommend an inlay or onlay to restore its strength and appearance. These treatments are often used when a standard filling isn’t strong enough, but a crown isn’t needed.

Inlays and onlays are designed to repair your tooth while preserving as much of your natural tooth as possible, helping to protect it from further damage.

Do I need an inlay or an onlay?

Inlays and onlays are often recommended for larger cavities or areas of damage where a filling wouldn’t provide enough strength.

Inlays fit neatly inside the tooth (similar to a filling). Onlays cover a larger area and may extend over the biting surface to rebuild damaged or fractured parts of the tooth, and are most commonly used on back teeth, which experience the greatest chewing pressure.

In some cases, you may also choose to replace old silver fillings with a more natural-looking inlay or onlay. Your dentist can remove the existing filling, clean the tooth, and restore it with a tooth-coloured alternative.

What are inlays and onlays made from?

Inlays and onlays are usually made from porcelain or composite resin. These materials are strong, long-lasting, and colour-matched to blend naturally with your teeth.

Gold inlays and onlays may also be suitable in some cases, although they are more noticeable.

What does treatment involve?

Treatment usually takes two appointments.

At your first visit:

• Any decay or old filling material is removed
• A mould or digital scan of your tooth is taken
• A temporary filling may be placed to protect the tooth
• Your custom inlay or onlay is then made in a dental laboratory

At your second visit:

• The temporary filling is removed
• Your inlay or onlay is carefully fitted and bonded into place
• Your bite is checked to ensure it feels comfortable

Book a dental health check-up

Early detection of tooth decay is the best way to prevent more complex treatment. If you’re concerned about a damaged or painful tooth, contact us in Carmarthen to book a dental health check-up.