Inlays and onlays are conservative, long-lasting dental restorations used to repair teeth that are too damaged for a standard filling but not damaged enough to require a full crown. Both restorations are custom-made in a professional dental laboratory using composite resin, gold, or tooth-colored porcelain, and they are permanently bonded to the tooth for strength, durability, and a natural look.
What Are Inlays and Onlays?
Inlays
An inlay fits within the grooves of a tooth and does not cover the chewing cusps.
Ideal for repairing:
- Large defective fillings
- Decay or damage is limited to the inner portion of the tooth
- Teeth needing reinforcement without full crown coverage
Onlays
An onlay is similar to an inlay but extends over one or more chewing cusps.
Because of this, onlays are sometimes called partial crowns.
Ideal for restoring:
- Broken or fractured cusps
- Larger areas of decay
- Teeth needing support without removing as much structure as a crown requires
Why Choose an Inlay or Onlay?
Inlays and onlays are often preferred because they are more conservative than crowns, preserving more natural tooth structure while providing exceptional strength.
Reasons Dr. Byrd May Recommend These Restorations
- Broken or fractured teeth
- Cosmetic improvement
- Moderate to extensive decay
- Replacement of fractured or failing fillings
- Large fillings that no longer provide adequate support
Both inlays and onlays are durable and long-lasting, though they may eventually need replacement due to normal wear.
What Is the Procedure Like?
Inlays and onlays follow nearly identical treatment steps and generally require two appointments.
Visit 1: Preparation & Impressions
- Teeth are numbed for comfort.
- Decay and/or old filling material is removed.
- The tooth is shaped to ensure a precise fit for the restoration.
- Highly accurate impressions (molds) are taken for the dental laboratory.
- A temporary restoration is placed to protect the tooth during fabrication.
Visit 2: Final Placement
- The temporary restoration is removed.
- The inlay or onlay is tried in and checked for accuracy, comfort, and bite alignment.
- The restoration is permanently cemented into place.
- Final adjustments ensure a smooth, natural fit.
How Do I Care for an Inlay or Onlay?
To maximize the lifespan of your restoration, follow these guidelines:
- Brush twice daily with proper technique
- Floss daily to protect the restoration’s margins
- Maintain regular dental cleanings and exams
- Eat a balanced diet and avoid excessively hard foods
- Follow all care instructions provided by Dr. Ali Byrd
Good oral hygiene and routine dental visits help keep your restoration strong and healthy for many years.
Frequently Asked Questions
Richmond Center for Advanced Dentistry in Richmond, VA, is here to help you make confident decisions about your dental care. Below are answers to some of the questions patients often ask when considering inlays or onlays.
How do inlays and onlays compare to traditional fillings?
Inlays and onlays are typically stronger and more precisely fitted than standard fillings because they are custom-made in a dental laboratory. This allows them to reinforce the tooth more effectively, especially when the damaged area is larger.
Can an inlay or onlay strengthen a weakened tooth?
Yes. Because they are custom-fitted and bonded securely to the tooth, these restorations help reinforce the remaining tooth structure and restore stability to areas weakened by decay or damage.
How long do inlays and onlays typically last?
With good oral hygiene and regular dental checkups, inlays and onlays can last many years. Their durability often makes them a reliable option for restoring teeth that need more support than a standard filling can provide.
Are inlays and onlays covered by dental insurance?
Many dental insurance plans provide partial coverage for inlays or onlays when they are considered medically necessary to restore a damaged tooth. Our team can help review your benefits and explain your coverage before treatment.
Do inlays and onlays require special maintenance?
They do not require special products or routines. Brushing, flossing, and regular dental visits are usually all that’s needed to maintain the health of the restoration and the surrounding tooth.