Dental Inlays and Onlays: What They Are and When You Need Them

EXL Dentists · DLF Phase 4, Gurgaon · Updated 2026-10-16

If your dentist has mentioned an inlay or onlay for a damaged tooth, you may be wondering how it is different from a simple filling or a full crown. This confusion is common, and understanding the differences can help you make a confident, informed choice about your treatment.

What Are Dental Inlays and Onlays?

Inlays and onlays are custom-made restorations used to repair teeth with moderate damage or decay, somewhere between what a filling can handle and what requires a full crown. They are made in a dental lab or with digital scanning technology, then bonded onto the tooth.

• Inlay: Fits within the grooves on the chewing surface of the tooth, between the cusps (the raised points).
• Onlay: Covers one or more cusps in addition to the grooves, offering slightly more coverage than an inlay.

Both are typically made from tooth-coloured materials like ceramic or composite resin, so they blend naturally with your smile.

How Are They Different From Fillings?

A regular filling is placed directly into the tooth in a single visit. The dentist cleans out decay and fills the space with a soft material that hardens in place. This works well for small to medium cavities.

Inlays and onlays are made outside the mouth, either in a lab or chairside using a scanner, and then cemented into place. This usually means two visits, though some clinics with in-house milling technology can complete it in one. Because they are custom-fitted and often stronger than regular filling material, inlays and onlays are better suited for teeth with more extensive damage that a filling cannot support well.

How Are They Different From Crowns?

A crown covers the entire visible portion of the tooth, like a cap. This is necessary when a tooth has lost a significant amount of structure, has had root canal treatment, or is at risk of cracking under normal biting force.

Inlays and onlays are more conservative. They preserve more of your natural tooth because they only replace the damaged part rather than covering the whole tooth. This makes them a good middle-ground option when a filling is not enough, but a full crown would mean removing more healthy tooth structure than necessary.

When Would a Dentist Recommend an Inlay or Onlay?

Dentists usually suggest an inlay or onlay in these situations:

• When a cavity or old filling is too large for a standard filling but does not require full crown coverage
• When a tooth has a cracked cusp that needs reinforcement without removing the entire tooth structure
• When a patient wants a longer-lasting, more durable alternative to a large filling
• When preserving natural tooth structure is a priority, especially in back teeth that handle heavy chewing force

During your visit, your dentist will examine the tooth, may take an X-ray, and assess how much healthy structure remains before recommending the most suitable option.

What Is the Procedure Like?

The process generally involves these steps:

1. The damaged or decayed portion of the tooth is cleaned out
2. A digital scan or physical impression is taken to create a precise mould
3. A temporary restoration may be placed while the inlay or onlay is prepared
4. Once ready, the custom piece is checked for fit and bonded securely to the tooth

The result is a restoration that matches the shape and bite of your natural tooth closely.

Cost of Inlays and Onlays in DLF Phase 4, Gurgaon

Costs depend on the material used (composite versus ceramic), the size of the restoration, and the complexity of the case. As a general guide, patients in DLF Phase 4, Gurgaon can expect a typical range of roughly Rs 6,000 to Rs 15,000 per tooth for inlays and onlays, though this can vary based on individual assessment. We never fix a price without an in-person examination, as every tooth's condition is different.

Which Option Is Right for You?

There is no one-size-fits-all answer. A tooth with minor decay may only need a filling, while one with significant structural loss may genuinely need a crown. Inlays and onlays sit in between, offering a durable, conservative solution for the right cases. The best way to know which option suits your tooth is a proper clinical examination.

If you have an old filling that feels loose, a tooth that is sensitive to chewing, or you simply want a second opinion on restorative options, visiting a dentist for an evaluation is a good first step before deciding on treatment.

Treatment costs mentioned on this page are indicative ranges for the DLF Phase 4, Gurgaon region. Your exact cost depends on your case and will be confirmed after a clinical examination at the clinic.