Claims · Updated 2026-09-08 · 5 min read
What is already included in the price of a filling or a crown?
Delta lists adhesives liners bases pulp caps local anesthesia polishing and caries removal inside the filling fee. A crown fee includes the laboratory bill.
More than most offices bill for, and the carriers publish the lists. A filling's fee already contains the adhesives, etching, liners, bases, pulp caps, local anesthesia, polishing, occlusal adjustment, caries removal and same-day gingivectomy. A crown's fee already contains the tooth preparation, the temporary crown, the laboratory bill and materials, cement bases, impressions, occlusal adjustment, same-day gingivectomies and local anesthesia. Equipment and technique are inside the code too — lasers, air abrasion, CAD-CAM milling. As of September 2026, the indirect pulp cap on Delta's restoration list was bundled on every line we measured: 56 of 56 at Delta across 9 practices, and 23 of 23 at Cigna across 7. On a participating claim none of these can be charged to the patient; an out-of-network dentist has made no such agreement and may charge for them separately.
What we measured
| code | carrier | lines | practices | bundled | percent |
|---|---|---|---|---|---|
| D3120 pulp cap indirect | Delta Dental | 56 | 9 | 56 | 100% |
| D3120 pulp cap indirect | Cigna | 23 | 7 | 23 | 100% |
| D2950 core buildup | Cigna | 563 | 16 | 260 | 46.2% |
Every remittance line for those codes at those carriers, all dates, measured on 8 September 2026 across 37 practices and more than 170 payers. "Bundled" means the line was denied as included in another procedure. The two rows behave differently for a reason: the pulp cap is on the carriers' list of things always inside the restoration, while the core buildup is payable by exception when the documented loss of tooth structure justifies it.
What the carriers' own policies say
Delta Dental's national processing policies, in the Delta Dental of New Jersey 2023 Participating Dentist Handbook, give the best single list for a filling:
"The fee for a restoration includes services such as, but not limited to, adhesives, etching, liners, bases, direct and indirect pulp caps, local anesthesia, polishing, occlusal adjustment, caries removal, and gingivectomy on the same date of service."
and, from the same chapter, for a crown:
"Tooth preparation, temporary restorations, laboratory fees and material, cement bases, impressions, occlusal adjustment, gingivectomies (on the same date of service), and local anesthesia are considered to be included in the fee for a crown restoration. Separate fees for these procedures by the same dentist/dental office are not billable to the patient on the same date of service."
MetLife's Preferred Dentist Program (PDP) Resource Manual closes the materials question — there is no separate charge to the participant "for materials and/or laboratory costs, including Cerec or any other specialized porcelain systems."
Cigna's DPPO Dental Office Reference Guide closes the equipment question:
"Cigna Healthcare PPO customers cannot be charged for the specific use of equipment or instruments (including but not limited to handpieces, air abrasion, lasers, CAD/CAM technology) in the completion of a dental service. The use of equipment to complete a procedure is considered inclusive of the applicable CDT procedure codes."
The same guide lists what a signed treatment plan may not be used to charge for, and puts "inclusive services" at the head of it, followed by same-day crowns, upgraded materials, shading, porcelain margins, lab fees, laser treatment and "use of dental equipment and tools".
Liberty Dental Plan's National Clinical Criteria Guidelines and Practice Parameters, 2026:
"Tooth preparations, etching, adhesives (including bonding agents), liners, bases, and curing are considered part of the restorative process."
and on technique: "Lasers are considered tools for delivering care, not standalone procedures. Any laser use is included in the fee for the designated CDT procedure."
The United Concordia Dental PPO Clinical Policy (last updated May 2026) states the principle behind all of these lists: a benefit "per CDT code descriptor as reported is inclusive of all charges for work, materials, and supplies related to the service, and if reported separately, these services may be denied as integral." Guardian's DentalGuard Preferred Network Dentist Manual, November 2020 says the same of the filling in its Colorado state appendix — it "includes all adhesives, bonding agents, liners and bases" — and, outside that appendix in the manual's own plan limitations, of the laboratory: "Lab fees are considered inclusive of the primary procedure."
Why it depends on your contract
Almost none of this varies by plan. It varies by whether the dentist signed a network agreement, because that is where the promise not to charge separately lives. Delta's comparison of in-network and out-of-network care makes the difference explicit: in-network dentists "agree not to charge separately for services that are part of a treatment (like a local anesthetic)", while out-of-network dentists "may charge for these services separately, making overall costs higher."
Cigna's list is the one to read before adding a line to a treatment plan, because it names the charges offices most often believe are legitimately extra — shading, porcelain margins, upgraded materials, same-day milling — and says a signed treatment plan does not make them chargeable.
What to do
- Audit the practice's routine code set against these lists. A code that is denied every time it is billed is costing posting time and patient goodwill, not revenue.
- Quote the restoration or the crown as one fee. Adding lab fees, materials or technique charges to a participating claim is exactly what these documents forbid.
- Where a genuinely separate procedure was done on another tooth or another day, bill it on its own date with the tooth number, so it does not fall into the same-date rule.
- Do not rely on a signed treatment plan to make an inclusive service chargeable. Cigna states outright that it does not.
- Out of network, the same components may be charged — so tell the patient what will be itemised before treatment, not after.
Numbers last refreshed September 2026.