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Dental Inlays and Onlays

Precise Dental Restorations

What are dental inlays and onlays?

Dental inlays and onlays are custom restorations that repair a damaged or decayed tooth without covering the entire tooth like a crown. They’re made to fit precisely, like a puzzle piece, so the tooth can look natural and function normally again.

Inlays typically restore the area between the tooth’s cusps (the raised points), while onlays cover one or more cusps and more of the chewing surface. At Dr. Bowyer’s office in Vancouver, Washington, inlays/onlays are often recommended when a cavity or crack is too large for a standard filling but not severe enough to require a full crown.

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What’s the difference between an inlay and an onlay?

An inlay fits inside the cusps of the tooth, while an onlay covers one or more cusps and can protect more of the biting surface. Both are conservative options designed to strengthen a tooth while preserving more natural tooth structure than a full crown.

Think of an inlay as restoring the “center” of the tooth, and an onlay as extending over the tooth’s chewing edges for added coverage and support. Dr. Bowyer will recommend an inlay or onlay based on how much tooth structure is missing, where the damage is located, and how your bite forces hit that tooth.

When is an inlay or onlay better than a filling or crown?

Inlays and onlays are often the “middle ground” between fillings and crowns. They’re a great option when the damage is too extensive for a durable filling but not extensive enough to justify removing extra tooth structure for a crown.

A large filling can weaken remaining tooth structure and may be more likely to chip over time. A crown can be very effective, but it may require removing more healthy tooth than necessary in certain cases. During your dental evaluation, Dr. Bowyer will measure the size of the decay or fracture, the tooth’s strength, and your bite to choose the most predictable solution.

What is the process like for getting an inlay or onlay?

Getting an inlay or onlay typically takes two visits: one to prepare the tooth and one to place the final restoration. During the first appointment, the damaged area is removed, the tooth is shaped, and impressions (or digital scans) are taken so the restoration can be made with a precise fit.

A temporary filling is usually placed to protect the tooth in the meantime. At the second visit, the temporary is removed and the inlay/onlay is bonded or cemented into place, then adjusted for comfort and bite. Our patients often appreciate that the final result looks natural and feels stable.

How long do inlays and onlays last, and how do I care for them?

With good home care and regular dental visits, inlays and onlays can last many years. Their lifespan depends on the size of the restoration, the material used, your bite forces (including clenching/grinding), and your daily hygiene habits.

Care is straightforward: brush twice daily, floss every day, and keep up with routine cleanings and exams. Avoid chewing ice or very hard foods that can stress natural teeth and restorations alike. If you grind your teeth, a night guard may help protect your investment. Dr. Bowyer’s Vancouver, Washington team can monitor the fit and margins over time to help prevent future decay.

Ready To Take The Next Step?

Schedule a consultation with Dr. Bowyer to see if inlays or onlays are right for you. You can call us at (360) 253-2640, email us at info@drbowyer.com, or use the form on this page to request a free consultation.

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