What Is a Dental Inlay? Durable Restorations for Tooth Decay

A dental inlay is a custom-molded restoration used to repair tooth decay or damage that is too extensive for a standard filling but does not require a full crown. It is designed to fit precisely into the grooves of the tooth, providing a durable and aesthetically pleasing solution. More professionals across the world trust Colgate. Find resources, products, and information to give your patients a healthier future.

What Is a Dental Inlay?

An inlay is an indirect restoration, meaning it is fabricated in a lab rather than shaped directly in your mouth. It is primarily used for cavities centered within the tooth’s grooves, avoiding the outer edges or cusps. By using materials like porcelain or composite resin, inlays offer a nearly invisible repair that is often more durable than traditional fillings. Clinical Note: Unlike direct fillings, inlays are indicated when the remaining tooth structure is sufficient to support the restoration but requires reinforcement to prevent future fractures.

Inlay vs. Onlay vs. Filling: What’s the Difference?

Choosing the right restoration depends on the extent of the damage:

• Dental Filling: Best for small cavities; these are placed directly into the cleaned area. However, traditional metal fillings may weaken tooth structure by up to 50%.
• Dental Inlay: Ideal for moderate decay within the tooth’s grooves. Inlays can increase tooth strength by up to 75%.
• Dental Onlay: Used for more extensive damage that extends to the biting surface or cusps of the tooth.

Why Choose an Inlay?

Inlays serve as a middle ground between fillings and crowns. They are highly valued for their longevity—often lasting between 10 and 30 years—and their ability to reinforce the structural integrity of a damaged tooth while maintaining a natural appearance. Risk Indicator: If you experience persistent sensitivity to pressure or temperature in a specific tooth, it may be a sign of a structural compromise that requires professional evaluation for an inlay or onlay.

The Procedure: What to Expect

The process is straightforward and typically involves two visits:

1. Preparation: Your dentist will numb the area with a local anesthetic and remove the decayed tooth material.
2. Impression: An impression of the tooth is taken and sent to a lab to create your custom inlay.
3. Placement: Once the permanent inlay is ready, it is bonded to your tooth, restoring its shape and function.

Post-Procedure Care

For the first 48 hours after your procedure, avoid extreme temperatures and sticky or hard foods. Stick to soft foods to allow your mouth to heal. Once any initial numbness or soreness fades, resume your regular oral hygiene routine, including brushing twice daily and daily flossing, to prevent future decay.

Frequently Asked Questions

Is a dental inlay better than a filling?

Inlays are generally more durable and provide better structural support than traditional fillings, especially for larger areas of decay.

Does getting an inlay hurt?

The procedure is performed under local anesthesia, making it a comfortable experience. You may feel minor sensitivity for a day or two afterward.

How long do dental inlays last?

With proper care and consistent oral hygiene, inlays can last between 10 and 30 years.

When are dental X-rays necessary?

Dentists use X-rays to assess oral health when a clinical exam leaves questions. Specific reasons include: checking if there is room for incoming teeth, monitoring if primary teeth are being lost on schedule, identifying impacted wisdom teeth, detecting early decay, and looking for developmental abnormalities like cysts or tumors.