Restorative dentistry

Onlays in Muswell Hill

A conservative alternative to a full crown, onlays restore damaged or heavily filled teeth while preserving as much healthy tooth structure as possible.

  • Preserves more natural tooth than a crown
  • Custom-made in porcelain or composite for a seamless fit
  • Long-lasting, durable restoration
5.0 on Google Conservative approach Conservative Interest-free finance available Finance available
Onlay restoration at St James Dental Surgery in Muswell Hill
Onlay before and after, case one
Onlay before and after, case two
Onlay before and after, case three
Onlay before and after, case four
Onlay before and after, case one
Onlay before and after, case two
Onlay before and after, case three
Onlay before and after, case four
Onlay before and after, case one
Onlay before and after, case two
Onlay before and after, case three
Onlay before and after, case four
The basics

What is an onlay?

An onlay is a custom-made restoration that covers one or more cusps of a tooth. It sits between a filling and a full crown, restoring strength and shape while keeping as much healthy tooth structure intact as possible.

Onlays are used when a tooth has too much damage for a filling but doesn't need a full crown.
Onlay consultation at St James Dental Surgery in Muswell Hill
When you might need an onlay
Large or failing filling

When an old filling takes up a significant portion of the tooth, an onlay replaces it with something stronger while preserving the surrounding healthy enamel.

Cracked or chipped cusp

If one or more cusps are damaged but the rest of the tooth is sound, an onlay rebuilds just the affected area without cutting down the entire tooth for a crown.

Moderate decay

When decay extends across the biting surface or around a cusp, an onlay removes only what's damaged and restores the tooth with a precise, bonded fit.

Preserving tooth structure

Where a crown would require removing healthy enamel all around the tooth, an onlay only covers the area that needs it, keeping the rest untouched.

Compare options

Onlays vs crowns

Both restore damaged teeth, but they take very different approaches. Here's how they compare so you can understand which might be right for your situation.

Dental onlay restoration

Onlays

A custom-fitted restoration that covers only the damaged part of the tooth, bonded precisely into place to restore strength without removing healthy structure.

Often chosen for
  • Moderate damage where healthy enamel can be preserved
  • Replacing large fillings with a stronger, lasting alternative
  • A conservative approach that keeps more natural tooth
Dental crown restoration

Crowns

A full-coverage cap that fits over the entire tooth, encasing it completely to restore shape, strength and appearance when damage is more extensive.

Often chosen for
  • Extensive damage, fractures or teeth weakened after root canal
  • Full-coverage protection when little healthy tooth remains
  • Significant cosmetic reshaping of a single tooth

Not sure which is right for you?

We'll examine the tooth, explain how much structure can be preserved, and recommend the most conservative option that will give you a lasting result.

The procedure

How your onlay is fitted

The process usually takes two appointments, with a temporary restoration protecting your tooth while the permanent onlay is crafted.

Step 1
Assessment and planning

We examine the tooth, take X-rays and assess how much healthy structure remains. If an onlay is the most conservative option, we'll explain exactly what's involved.

Onlay before and after at St James Dental Surgery
Conservative restoration

Book an onlay consultation in Muswell Hill

We'll assess your tooth, explain whether an onlay is the most conservative option, and recommend the best material for a lasting result. Finance options are available.

FAQs

Frequently asked questions

Clear answers to the questions we hear most often about onlays.

Smiling patient after onlay restoration
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