What D2982 means

D2982 covers onlay repair necessitated by restorative material failure. "D" is dental, "29" is the other-restorative-services group, and "82" is this onlay repair. An onlay is an indirect restoration (made outside the mouth and cemented) that covers one or more of the tooth's cusps (more than an inlay, which stays within the cusps, but less than a crown, which covers the whole tooth) — restoring a tooth that needs cusp coverage but not full coverage. Sometimes an onlay's material fails or is damaged (e.g., a chip or fracture in a porcelain/ceramic onlay) but the onlay is otherwise serviceable and can be repaired in place, rather than replacing it. D2982 covers this onlay repair necessitated by restorative material failure.

So it's repairing an onlay that's been damaged due to its material failing, when the onlay can be repaired rather than replaced.

This is analogous to crown repair (D2980) and inlay repair (D2981), but for onlays. Onlay repair is appropriate when the damage is repairable and the onlay is otherwise sound (a repair being more economical and conservative than a new onlay). Whether an onlay can be repaired (versus needing replacement) depends on the extent and nature of the damage. Coverage is under restorative benefits; documentation of the material failure and the repair supports the claim.

When it's typically used

D2982 is reported for onlay repair necessitated by restorative material failure — repairing an onlay damaged due to its material failing (such as a chip or fracture), when the onlay can be repaired in place rather than replaced, restoring the onlay by addressing the damaged material.

How much does D2982 cost?

An onlay repair is a moderate fee, often roughly 150 to 400 USD depending on region and the repair — less than replacing the entire onlay, addressing the damaged material. It's a more economical, conservative option than a new onlay when the onlay is repairable.

Is D2982 covered by insurance?

Covered under restorative benefits when the onlay repair is appropriate (the damage repairable, the onlay otherwise sound). Documentation of the restorative material failure and the repair supports the claim. Coverage and frequency may be considered. It's analogous to crown repair (D2980) and inlay repair (D2981). Verifying coverage helps.

What an onlay is

Understanding what an onlay is clarifies what's being repaired.

An onlay is an indirect restoration — made outside the mouth and then cemented onto the tooth — that covers one or more of the tooth's cusps. It sits between an inlay and a crown in terms of coverage: an inlay fits within the cusps (not covering them), an onlay covers one or more cusps (but not the whole tooth), and a crown covers the entire tooth. So an onlay restores a tooth that needs more than a within-the-cusps restoration (it needs cusp coverage, perhaps because a cusp is damaged or weakened) but doesn't need full coverage (a crown) — providing a precisely-fitted indirect restoration that covers and protects the involved cusp(s) while preserving more of the natural tooth than a full crown would. Onlays can be made of various materials — porcelain/ceramic (tooth-colored), composite, or metal (gold).

So an onlay is a precisely-fitted indirect restoration covering one or more cusps — a conservative alternative to a crown when cusp coverage (but not full coverage) is needed. Like other indirect restorations, an onlay's material can sometimes be damaged (e.g., a porcelain/ceramic onlay could chip or fracture), and if repairable, the onlay can be repaired rather than replaced. Understanding what an onlay is (a cusp-covering indirect restoration) clarifies what onlay repair addresses — repairing damage to this restoration. For patients, understanding what an onlay is — an indirect restoration covering one or more cusps (between an inlay and a crown in coverage, conserving more tooth than a crown) — clarifies what's being repaired. Onlay repair addresses damage to this restoration. The dentist repairs a repairable onlay. Understanding what an onlay is helps patients understand onlay repair — repairing damage (like a chip) to an onlay, a cusp-covering indirect restoration, when the damage is repairable and the onlay is otherwise sound, as an economical alternative to replacing the onlay, restoring this conservative, precisely-fitted restoration.

When an onlay can be repaired

An onlay can be repaired in certain situations, and understanding them clarifies when repair (versus replacement) is appropriate.

An onlay repair is appropriate when the onlay's material has failed or been damaged in a repairable way, and the onlay is otherwise sound. Situations where repair may be feasible include: a chip or fracture in the onlay material (e.g., a porcelain/ceramic onlay with a chip) that can be repaired while the rest of the onlay remains intact and functional; or other repairable material damage where the onlay's overall fit and function are still good. The conditions for repair: the damage is repairable (not so extensive that the onlay's integrity is compromised); the onlay is otherwise sound (good fit, good margins, the underlying tooth healthy); and a repair will give an acceptable, functional result. When these are met, repairing the onlay is a reasonable, economical alternative to replacing it.

If the damage is too extensive (compromising the onlay's integrity), or the onlay has other problems (poor fit, failing margins, recurrent decay underneath), repair may not be appropriate, and replacing the onlay is needed instead. So repair is for repairable damage on an otherwise-sound onlay; replacement is for extensive damage or a compromised onlay. The dentist assesses the damage and the onlay to determine whether repair is feasible or replacement is needed. For patients, understanding when an onlay can be repaired — repairable material damage on an otherwise-sound onlay — clarifies when repair versus replacement is appropriate. Repair suits repairable damage; replacement is for extensive damage or a compromised onlay. The dentist assesses to determine the appropriate course. Understanding this helps patients see that a damaged onlay can sometimes be repaired (economically, conservatively) when the damage is repairable and the onlay is otherwise sound, while extensive damage or a compromised onlay would need replacement, with the dentist assessing the damage and the onlay to recommend repair or replacement.

Repair vs replacing the onlay

Repairing and replacing an onlay are different responses to onlay damage, and understanding the choice clarifies the decision.

When an onlay is damaged, the options are repairing it or replacing it. Repairing (D2982) is appropriate when the damage is repairable and the onlay is otherwise sound — it's more economical and conservative (addressing the damage without remaking the onlay, and without re-preparing the tooth). Replacing is needed when the damage is too extensive (compromising the onlay) or the onlay has other problems (poor fit, failing margins, recurrent decay underneath) — making a new onlay (involving re-preparing the tooth, an impression, and fabrication, at greater cost). So the choice depends on the damage and the onlay's condition: repairable damage on a sound onlay → repair (economical); extensive damage or a compromised onlay → replace (more involved).

The dentist assesses the damage and the onlay to make this determination. Repair is preferred when feasible (more economical and conservative), but only when the damage is repairable and the onlay is sound. Considerations include the repair's likely durability and whether the onlay is worth keeping. The dentist weighs these to recommend repair or replacement. For patients, understanding that repairing (for repairable damage on a sound onlay) and replacing (for extensive damage or a compromised onlay) are the options clarifies the decision. Repair is the economical, conservative choice when feasible; replacement is for extensive damage or a compromised onlay. The dentist assesses to recommend the appropriate course. Understanding the choice helps patients see why their damaged onlay might be repaired (if the damage is repairable and the onlay sound) or replaced (if the damage is extensive or the onlay compromised), with the dentist determining the best response based on the damage and the onlay's condition, balancing the economy of repair against the need for replacement when warranted.

Onlay, inlay, and crown repairs

Repair codes exist for onlays, inlays, and crowns, and understanding them clarifies the related repair procedures.

There are analogous repair codes for the different indirect restorations, all for repair necessitated by restorative material failure. Onlay repair (D2982, this code): repairing a damaged onlay (a cusp-covering indirect restoration) when repairable and otherwise sound. Inlay repair (D2981): repairing a damaged inlay (a within-the-cusps indirect restoration). Crown repair (D2980): repairing a damaged crown (a full-coverage restoration), e.g., chipped porcelain. So each type of indirect restoration (onlay, inlay, crown) has a corresponding repair code for addressing material failure/damage, used when the restoration can be repaired rather than replaced.

The principle is the same across them: when an indirect restoration's material fails or is damaged in a repairable way (and the restoration is otherwise sound), it can be repaired (more economically and conservatively than replacement), with the appropriate code (D2982 onlay, D2981 inlay, D2980 crown) reported. The distinction among them is the type of restoration: an onlay (covering cusp(s)), an inlay (within the cusps), or a crown (full coverage). The feasibility of repair depends on the damage and the restoration's condition, as discussed. The dentist uses the appropriate repair code for the type of restoration being repaired. For patients, understanding that repair codes exist for onlays (D2982), inlays (D2981), and crowns (D2980) — all for repairing material failure/damage when the restoration is repairable — clarifies the related repair procedures. Each indirect restoration type has a corresponding repair option. The dentist uses the appropriate code for the restoration being repaired. Understanding this helps patients see that onlays, inlays, and crowns can each be repaired (with the corresponding code) when their material is damaged in a repairable way and the restoration is otherwise sound — an economical, conservative alternative to replacement across these indirect restoration types, with the dentist using the appropriate code (D2982 for the onlay) for the specific restoration repaired.

Frequently asked questions

What is the D2982 dental code?

It's onlay repair necessitated by restorative material failure — repairing an onlay (an indirect restoration covering one or more cusps) damaged due to its material failing (such as a chip or fracture), when the onlay can be repaired in place rather than replaced.

What is an onlay?

An indirect restoration (made outside the mouth and cemented) that covers one or more of the tooth's cusps — between an inlay (within the cusps) and a crown (full coverage). It restores a tooth needing cusp coverage but not full coverage, conserving more tooth than a crown.

When can an onlay be repaired?

When the damage is repairable (like a chip in a ceramic onlay) and the onlay is otherwise sound (good fit, good margins, healthy underlying tooth). If the damage is too extensive or the onlay has other problems, replacement is needed. The dentist assesses to determine.

Repair or replace the onlay?

Repair (economical, conservative) if the damage is repairable and the onlay is sound. Replace (more involved) if the damage is extensive (compromising the onlay) or the onlay has other problems (poor fit, failing margins, recurrent decay). The dentist assesses the damage and the onlay.

How much does an onlay repair cost?

Often around 150 to 400 USD, less than replacing the entire onlay, addressing the damaged material. It's a more economical, conservative option than a new onlay when the onlay is repairable.

Are there repair codes for crowns and inlays too?

Yes — crown repair (D2980) and inlay repair (D2981) are the analogous codes. Each indirect restoration type (onlay, inlay, crown) has a corresponding repair code for material failure, used when the restoration is repairable rather than needing replacement.

This page is an independent, plain-language explanation for general information only. It is not billing, coding, or clinical advice. For the official CDT descriptor and current-year wording, refer to the American Dental Association.