What D3473 means

D3473 covers the surgical repair of root resorption — molar. "D" is dental, "34" is the endodontic surgery group, and "73" is this molar root resorption repair. Like the anterior (D3471) and premolar (D3472) versions, it's surgery to address root resorption — the body breaking down the tooth's root structure, which can destroy the tooth if it progresses. The surgery accesses the resorption defect, removes the resorbing tissue, and repairs the defect to halt the resorption and preserve the tooth. This code is for that surgical repair on a molar (the large back teeth).

The procedure is coded by tooth type: anterior (D3471), premolar (D3472), and molar (D3473, this one), reflecting the different access and complexity for different teeth.

Molar root resorption repair is the most complex of these, because molars are at the back of the mouth (less accessible), have multiple roots (with complex anatomy), and are near important structures (the sinus for upper molars, the nerve for lower molars) — making the surgery more demanding. It requires skill and is often done by a specialist with magnification. Success depends on the type, location, extent, and accessibility of the resorption. Coverage is under endodontic/surgical benefits, with documentation (imaging showing the resorption). It's used for accessible, repairable resorption defects on molars.

When it's typically used

D3473 is reported for the surgical repair of root resorption on a molar tooth — accessing and repairing a defect where the tooth's root structure is being broken down by the body, to stop the resorption and save the tooth, when the defect can be surgically accessed and repaired (the most complex of the resorption repairs, given the molar's anatomy).

How much does D3473 cost?

Surgical repair of root resorption on a molar is a significant fee, often roughly 750 to 1,400 USD depending on region — the most of the resorption repairs, reflecting the molar's complexity (back location, multiple roots, nearby structures). Associated procedures (root canal treatment, grafts) may be separate. It's an investment to try to save a molar affected by resorption.

Is D3473 covered by insurance?

Covered under endodontic/oral surgery benefits, often around 50-80 percent, with documentation (imaging, often 3D/cone-beam CT, showing the resorption defect, its extent, and the molar's anatomy) justifying the surgical repair. It's coded by tooth type (molar here). Pre-authorization is often advisable. The prognosis (affected by the molar's complexity) and the resorption's nature should be documented. Associated procedures may be separate.

Why molar resorption repair is most complex

Molar root resorption repair is the most complex of these surgeries, and understanding why clarifies what's involved.

Several factors make molar resorption repair more challenging than the anterior or premolar versions, similar to why molar apicoectomy is the most complex. Location: molars are at the back of the mouth, less accessible for surgery, making access to the resorption defect more demanding. Multiple roots: molars have multiple roots (typically two or three) with complex anatomy, and the resorption defect may be on a particular root or in a hard-to-reach area, requiring careful access. Nearby anatomical structures: molar roots are near important structures — upper molar roots near the maxillary sinus, lower molar roots near the inferior alveolar nerve — requiring care to avoid these during surgery. Limited visibility and access: the back location and surrounding anatomy make visibility and access to the resorption defect harder. The defect's location: a resorption defect on a molar may be in a position that's difficult to access surgically, depending on which root and where on the root it is.

These factors mean molar resorption repair requires significant skill and is often performed by a specialist (such as an endodontist) using magnification and specialized techniques, with careful planning (often 3D imaging to assess the defect, the roots, and the nearby structures). The complexity is also why molar resorption repair is the costliest of these procedures. Despite the complexity, it can save molars affected by accessible, repairable resorption when properly performed. For patients, understanding that molar resorption repair is the most complex — due to the location, multiple roots, nearby structures, and the defect's possible position — clarifies why it requires particular skill and careful planning, and is more involved (and costly) than the anterior or premolar versions. The complexity is managed by the specialist's expertise and technology. The dentist or specialist plans the molar resorption repair carefully to perform it safely and effectively, addressing the complexity to try to save the molar.

Assessing whether the molar defect is repairable

A key step is assessing whether a molar's resorption defect is surgically repairable, and understanding this clarifies the evaluation.

Not every resorption defect on a molar can be surgically repaired — the feasibility depends on whether the defect can be adequately accessed and repaired. The assessment involves evaluating several things, typically with detailed imaging (often 3D cone-beam CT, which shows the resorption defect, the roots, and the surrounding anatomy in detail). The location of the defect: whether it's on a root and in a position that can be surgically accessed (some defects, deep within the tooth or in inaccessible positions, may not be reachable for surgical repair). The extent of the resorption: whether the resorption has destroyed too much of the root structure (extensive resorption may have weakened the tooth too much to save, or the defect may be too large to repair effectively). The type of resorption: whether it's a type that can be halted by removing the resorbing tissue and repairing the defect. The molar's overall condition: whether the tooth is otherwise sound enough to be worth saving.

Based on this assessment, the specialist determines whether surgical repair is feasible and worthwhile for the specific molar — whether the defect can be accessed and repaired to halt the resorption and preserve the tooth, with a reasonable prognosis. If the defect is accessible and repairable and the tooth is worth saving, the surgery can be attempted. If the resorption is too extensive, inaccessible, or has destroyed too much of the tooth, the tooth may not be salvageable, and extraction might be the outcome. For patients, understanding that a key step is assessing whether the molar's resorption defect is surgically repairable — based on the defect's location, extent, type, and the tooth's condition, evaluated with detailed imaging — clarifies the evaluation before the surgery. The specialist determines the feasibility and prognosis. Understanding this helps patients see that the surgical repair is attempted when the molar's defect is accessible and repairable with a reasonable prognosis, after a careful assessment, ensuring the surgery is undertaken when it has a reasonable chance of saving the molar, rather than in hopeless cases where extraction would be the better path.

The molar resorption repair procedure

Understanding the molar resorption repair procedure clarifies what's involved in this complex surgery.

The procedure aims to access the resorption defect, remove the resorbing tissue, and repair the defect to halt the process — performed on the molar, accounting for its complexity. It's typically done under local anesthesia, often by a specialist (endodontist) with magnification. The surgeon accesses the resorption defect — making a gum incision and reflecting the tissue to expose the affected area of the molar's root, carefully navigating the molar's location, multiple roots, and nearby structures (avoiding the sinus or nerve). Accessing the defect on a molar can be demanding, requiring careful surgical technique. The surgeon then removes the resorbing (granulation) tissue causing the breakdown, cleaning out the defect, and repairs the defect — filling or sealing it with an appropriate biocompatible material to restore the root structure there and stop the resorption. The gum is then repositioned and closed, healing over the following weeks. The molar may also need root canal treatment (if the resorption involves the pulp).

The use of magnification (an operating microscope) and careful technique is important for the molar, given the complexity and the need to precisely access and repair the defect while avoiding the nearby structures. The success depends on adequately accessing, removing the resorbing tissue, and repairing the defect, and on the resorption's type and extent. For patients, understanding the molar resorption repair procedure — carefully accessing the defect (navigating the molar's anatomy), removing the resorbing tissue, and repairing the defect — clarifies what this complex surgery involves. It addresses the resorption on the molar, with the specialist's skill and technology managing the complexity. The surgeon performs the access and repair carefully, accounting for the molar's challenges. Understanding the procedure helps patients see how the surgical repair aims to halt the resorption and preserve the molar, by removing the destructive tissue and restoring the root defect, performed with the care and technology needed for the complex molar anatomy, giving the molar a chance to be saved from the resorptive process.

Prognosis and the value of saving a molar

The prognosis of molar resorption repair varies, and understanding it alongside the value of saving a molar helps patients weigh the procedure.

The prognosis of surgically repairing root resorption on a molar — whether it successfully halts the resorption and saves the tooth — depends on the type, location, extent, and accessibility of the resorption, and the success of the repair, as with other teeth, but with the molar's complexity adding challenge. Accessible, localized, early-caught resorption that's adequately repaired has a better prognosis, while extensive, advanced, aggressive, or hard-to-access resorption (more likely to be an issue on complex molars) has a guarded or poor prognosis. So the prognosis for molar resorption repair varies and can be more guarded than for simpler teeth, given the complexity. The specialist assesses the prognosis (with detailed imaging) and discusses the realistic prospects.

This is weighed against the value of saving a molar. Molars are important, hard-working teeth (doing most of the chewing) and are relatively involved and costly to replace (an implant requires surgery and expense). So saving a molar is valuable, which can make attempting the resorption repair worthwhile even given the complexity and a possibly guarded prognosis — even some additional years from the molar can be valuable, and saving it avoids extraction and replacement. However, if the prognosis is poor (the resorption too advanced or inaccessible), extraction and replacement might be the more sensible path, rather than an unlikely-to-succeed surgery. The decision weighs the chance of saving the molar against the prognosis and the alternative. For patients, understanding that the prognosis of molar resorption repair varies (and can be guarded given the complexity), weighed against the value of saving a molar (important and costly to replace), helps them weigh the procedure. When the prognosis is reasonable, the repair offers a valuable chance to save the important molar; when poor, extraction may be more sensible. The specialist provides realistic guidance based on the specific molar and resorption, helping the patient decide whether the repair is worthwhile, balancing the chance of saving the valuable molar against the prognosis and the alternative of extraction and replacement. Understanding this helps patients make an informed decision about attempting the molar resorption repair.

Frequently asked questions

What is the D3473 dental code?

It's the surgical repair of root resorption on a molar tooth — surgery to access and repair a defect where the tooth's root structure is being broken down (resorbed) by the body, to stop the process and save the tooth. Anterior teeth use D3471 and premolars D3472. It's the most complex of these.

Why is molar resorption repair the most complex?

Molars are at the back (less accessible), have multiple roots with complex anatomy, and are near important structures (the sinus for upper molars, the nerve for lower molars). Accessing and repairing a resorption defect on a molar is demanding, often requiring a specialist with magnification.

Can every molar resorption defect be repaired?

No — it depends on whether the defect can be adequately accessed and repaired, assessed with detailed imaging (the location, extent, type of resorption, and the tooth's condition). Some defects are inaccessible or too extensive to repair, making the tooth unsalvageable.

How is the molar repair performed?

Under local anesthesia, often by a specialist with magnification — accessing the defect (navigating the molar's anatomy and nearby structures), removing the resorbing tissue, and repairing the defect with a biocompatible material to halt the process. The molar may also need root canal treatment.

How much does the molar repair cost?

Often around 750 to 1,400 USD for the surgery, the most of the resorption repairs, reflecting the molar's complexity. Associated procedures (root canal, grafts) may be separate.

Is it worth saving a molar with resorption?

Often yes when the prognosis is reasonable — molars are important for chewing and costly to replace (an implant requires surgery and expense), so saving one is valuable. But if the resorption is too advanced or inaccessible (a poor prognosis), extraction may be more sensible. The specialist assesses the prospects.

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.