Dental Inlays & Onlays
Custom-made restorations that provide superior strength and precision for larger cavities
What Are Inlays & Onlays?
Inlays and onlays are like custom puzzle pieces for your teeth. When a cavity is too large for a regular filling but not extensive enough to require a crown, these laboratory-made restorations provide the perfect solution.
Think of them as precision-engineered repairs that fit exactly into the prepared space in your tooth, restoring both function and appearance with exceptional strength.
Types of Custom Restorations
Inlays
Inlays fit within the cusps (raised points) of your tooth, like a perfectly fitted piece that sits inside the tooth structure without extending over the edges.
- • Fits within the tooth cusps
- • Ideal for moderate-sized cavities
- • Preserves maximum natural tooth structure
- • Excellent for back teeth
Inlays and Onlays
Onlays extend over one or more cusps of the tooth, providing coverage for larger areas of damage while still preserving more natural tooth structure than a crown.
- • Covers one or more tooth cusps
- • Ideal for larger cavities
- • Stronger than large fillings
- • Alternative to crowns in many cases
What Happens During Treatment?
First Visit: Preparation
Your dentist will numb the area and carefully remove any decay, then prepare the tooth to receive the inlay or onlay. Digital scans or impressions are taken and a temporary restoration is placed.
Laboratory Work
Your digital scan or impressions are sent to a dental laboratory where skilled technicians create your custom inlay or onlay to match your natural teeth perfectly.
Second Visit: Placement
The temporary restoration is removed and your custom inlay or onlay is carefully fitted and bonded to your tooth for a strong, lasting restoration.
Benefits of Inlays & Onlays
Superior Strength
- • Stronger than large fillings
- • Laboratory-made precision
- • Excellent durability
- • Long-lasting results
Conservative Treatment
- • Preserves natural tooth structure
- • Less invasive than crowns
- • Maintains tooth strength
- • Natural appearance
How Much Do Inlays & Onlays Cost?
The cost of inlays and onlays varies depending on the material used and the complexity of the case. Here's a general guide to UK prices:
NHS Treatment
- • Band 3 treatment: £306.80
- • Covers necessary restoration work
- • Material choice may be limited
- • Available at NHS practices
Private Treatment
- • Inlays: £400-£800
- • Onlays: £500-£1,000
- • Material choice available
- • Payment plans often available
Note: Prices vary by location and practice. Many practices offer payment plans to help spread the cost. Contact your local practice for accurate pricing.
Frequently Asked Questions
How long do inlays and onlays last?
With proper care, inlays and onlays typically last 10-15 years or more. Their longevity depends on the material used, your oral hygiene habits, and regular dental check-ups.
Are inlays and onlays better than fillings?
For larger cavities, inlays and onlays offer superior strength, better fit, and longer-lasting results compared to traditional fillings. They're particularly beneficial for back teeth that endure heavy chewing forces.
How do I care for my inlay or onlay?
Care for your inlay or onlay just like your natural teeth - brush twice daily, floss regularly, and visit your dentist for check-ups. Avoid using your teeth as tools and maintain excellent oral hygiene.
Will my inlay or onlay be noticeable?
Modern inlays and onlays are made to match your natural tooth colour and are virtually indistinguishable from your natural teeth. They blend seamlessly with your smile.
Find Inlays and Onlays Near You
Browse dentists offering inlays and onlays in the UK's largest cities:
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Find a dentistWritten by: Dr Tristan Tinn, Founder and Clinical Director of HelpDental
Last updated: September 25, 2025