Inlays and Onlays at Ferny Smiles Dental
Precision Restorations for Stronger, Natural-Looking Teeth
At Ferny Smiles Dental, we offer custom inlays and onlays as a superior alternative to standard fillings for teeth that have experienced moderate decay or damage. Crafted in our purpose-built clinic using the latest materials and technology, these restorations provide exceptional strength, a precise fit, and a seamless, natural appearance.
Inlays and onlays sit between a regular filling and a full crown — conserving more of your natural tooth structure while delivering a more durable and long-lasting result.
What Are Inlays and Onlays?
Inlays and onlays — sometimes called “indirect fillings” — are custom-made restorations fabricated to fit precisely within or over the damaged areas of a tooth. They are an ideal solution when a tooth is too damaged for a standard filling, but healthy enough that a full crown isn’t necessary.
Inlays fit within the cusps (the raised points) of a tooth, restoring the inner chewing surface.
Onlays extend over one or more of the outer cusps, providing greater coverage for more extensive damage.
Both are tooth-coloured and crafted from high-quality porcelain or composite resin, ensuring they blend naturally with your smile.
Why Choose Inlays or Onlays?
Inlays and onlays offer several advantages over traditional direct fillings and full crowns:
- Greater strength – the custom-fabricated material is harder and more durable than standard composite resin
- Conservative approach – more natural tooth structure is preserved compared to a crown
- Precise fit – made to exact measurements for a seamless result
- Tooth-coloured – natural-looking and discreet
- Long-lasting – resistant to wear with excellent longevity
- Stable under pressure – ideal for restoring back teeth that endure significant chewing forces
At Ferny Smiles Dental, we use high-quality materials and precise fabrication methods to ensure every restoration meets the highest standard.
When Might an Inlay or Onlay Be Recommended?
An inlay or onlay may be the right option if you:
- Have a cavity too large for a standard filling
- Have a cracked or fractured tooth that doesn’t require a full crown
- Have an existing large filling that needs replacing
- Want a stronger, longer-lasting restoration for a back tooth
- Are looking for a metal-free alternative that blends naturally with your smile
During your appointment, we’ll assess the extent of damage and recommend the most appropriate restoration for your tooth.
What Does the Procedure Involve?
Inlays and onlays are typically completed over two appointments. The process generally involves:
First Visit
- Numbing the area for your comfort
- Removing decay and any damaged tooth structure
- Preparing and taking an impression (or digital scan) of the tooth
- Placing a temporary restoration while your custom inlay or onlay is fabricated
Second Visit
- Removing the temporary restoration
- Checking the fit and colour of your custom piece
- Bonding it securely to your tooth
- Polishing and refining for a natural look and bite
Once bonded, your inlay or onlay becomes a strong, stable part of your tooth — ready to withstand the demands of everyday eating.
How Long Do Inlays and Onlays Last?
With good oral hygiene and regular dental visits, inlays and onlays are highly durable restorations. Their longevity depends on:
- The size and location of the restoration
- Daily brushing and flossing habits
- Your overall risk of decay
- Whether you grind or clench your teeth
Many patients find that inlays and onlays outlast traditional fillings by many years, making them an excellent long-term investment in your oral health.
Frequently Asked Questions
Are inlays and onlays painful to have done?
No. We use local anaesthesia to ensure you’re comfortable throughout, and most patients find the procedure straightforward.
How are inlays and onlays different from fillings?
Standard fillings are placed directly into the tooth in one visit. Inlays and onlays are custom-made outside the mouth for a more precise, durable fit — making them better suited to larger areas of damage.
How are inlays different from onlays?
An inlay restores the surface between the cusps of a tooth. An onlay extends over one or more cusps and is used when damage is more widespread.
Do I need a crown instead?
Not necessarily. If enough healthy tooth structure remains, an inlay or onlay can be a more conservative option that avoids the need for a full crown. We’ll assess this during your appointment.
What material are they made from?
We use tooth-coloured porcelain or composite resin — both metal-free options that are durable and blend naturally with your smile.
How do I care for my inlay or onlay?
Maintain regular brushing and flossing, avoid biting on very hard items, and attend routine check-ups so we can monitor the restoration over time.