CurrentUnitedHealthcarePolicy DCP046.06

Dental Implant Supported Prostheses

Defines clinical guidance and coverage rationale for implant‑supported prosthetic options for edentulous maxilla or mandible, and related restorative considerations for UnitedHealthcare dental plans.

Policy Summary

PayerUnitedHealthcare

PolicyDental Implant Supported Prostheses

Policy CodePolicy DCP046.06

Change TypeMaterial and non‑material updates

Effective DateApr 1, 2026

Next Review Date

Key ActionCheck the member's benefit plan for prior authorization requirements before submitting claims.

SourceLink

POLICY UPDATE CHANGES

Added language stating implant supported prosthetic options for an edentulous maxilla or mandible typically include the placement of 4-6 implants to support an implant-assisted denture or an implant-supported fixed prosthesis.

Updated Description of Services, Clinical Evidence, FDA, and References sections to reflect the most current information.

4-6implants typically used for edentulous arch support

2:1max recommended implant body to crown ratio

93.9%-100%All-on-4 survival (maxilla)

91.7%-100%All-on-4 survival (mandible)

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Coverage Criteria

Covered when criteria met

Covered when ALL of the following are met and when member benefit plan includes the service.

Basic coverage criteria: Implant supported prosthetic options for an edentulous maxilla or mandible typically include placement of 4-6 implants to support an implant-assisted denture or an implant-supported fixed prosthesis.4-6 implants

From Coverage Rationale; confirm member benefit covers procedure

Osseointegration: The implant is fully osseointegrated.

Per Guidelines for Implant Supported Prostheses

Implant stability: The implant is not mobile.

Per Guidelines for Implant Supported Prostheses

No infection: There is no evidence of infection at the implant site.

Per Guidelines for Implant Supported Prostheses

Crown-to-implant ratio: Implant body to crown ratio is appropriate for the site and anticipated occlusal load, not to exceed 2:1.<= 2:1

Per Guidelines for Implant Supported Prostheses

Prosthesis type considerations: Fixed prosthesis: avoid cantilever construction in posterior areas; combined implant and tooth supported prostheses may be appropriate after individual case consideration. Removable prosthesis: implants may be used for support or retention.

Per Fixed and Removable Prosthesis guidance

Complete denture guidance: Two or four implants provide greater stability when the maxillary ridge is severely resorbed; if A-P spread is inadequate, a full-palatal-coverage overlay denture is recommended.

Per Complete Dentures guidance

When planning implant‑supported fixed prostheses, exercise caution with cantilever constructions. Cantilevered pontics—where the prosthetic tooth is supported only on one end—can increase stress on supporting abutments and implants; the policy specifically advises avoiding cantilevers in posterior areas when considering fixed prostheses. Additionally, connecting natural teeth to implants may create biomechanical challenges because natural teeth have periodontal ligament mobility while implants are rigidly osseointegrated. Such connections can transfer excessive stress to the implant neck, risking component loosening or implant failure; these decisions should be made on an individual patient basis.

This policy does not enumerate procedures as explicitly “not medically necessary.” Coverage determinations depend on the member’s specific benefit plan; listing of procedure or diagnosis codes in this guideline does not imply coverage. When a proposed service involves the issues described here—for example, cantilevered restorations or connecting natural teeth to implants—coverage and medical necessity must be confirmed against the member’s plan and consideration of clinical circumstances.

Coding

Related CDT Codesmixed

D6055	Connecting bar - implant supported or abutment supported
D6056	Prefabricated abutment - includes modification and placement
D6057	Custom fabricated abutment - includes placement
D6058	Abutment supported porcelain/ceramic crown
D6059	Abutment supported porcelain fused to metal crown (high noble metal)
D6060	Abutment supported porcelain fused to metal crown (predominantly base metal)
D6061	Abutment supported porcelain fused to metal crown (noble metal)
D6062	Abutment supported cast metal crown (high noble metal)
D6063	Abutment supported cast metal crown (predominantly base metal)
D6064	Abutment supported cast metal crown (noble metal)

1–10 of 63

1/7

Implant body to crown ratio

LimitImplant body to crown ratio not to exceed 2:1

ContextApplies where implant body to crown ratio must be appropriate for site and anticipated occlusal load

Related requirementImplant must be fully osseointegrated and not mobile when ratio applied

Provider Actions / Billing Notes

Prior Authorization

Prior Authorization Required

Check the member's plan for any required prior authorization. Benefit coverage is determined by the member-specific benefit plan document and prior authorization may be required for certain services.

Member-specific plan may require prior authorization before services are rendered
Listing of codes does not guarantee coverage — verify benefits in member plan

Denial Risk

Benefit Plan Governs Coverage

Benefit coverage is governed by the member-specific benefit plan document. A listed code in this policy does not assure coverage and may result in denial if not covered by the member's plan.

Listing of codes is for reference only and may not be all-inclusive
In the event of conflict between this policy and the member-specific benefit plan, the member plan governs

Background

Dental implants achieve a direct structural and functional connection with bone (osseointegration) and are used to restore single teeth with crowns, to retain implant‑supported bridges, or to improve retention and support for removable full and partial dentures. For fully edentulous arches, most commonly 4–6 implants are used to support an implant‑assisted complete denture or an implant‑supported fixed prosthesis. Implant restorations require that the implant be fully osseointegrated, stable (not mobile), and free of infection; additionally, the implant body to crown ratio should not exceed 2:1 for the site and anticipated occlusal load.

Definitions

Cantilever Fixed Dental Prosthesis

DefinitionA Fixed complete or partial denture in which the pontic is Cantilevered (i.e., is retained and supported only on one end by one or more Abutments).

Place in policyListed under Definitions for clinical guidance on prosthesis design

Clinical noteCantilever constructions are advised against in posterior areas per prosthesis guidance

Osseointegration

DefinitionA direct structural and functional connection between the bone and the loading surface of an implant.

SourceDefined in policy Definitions section (Zidrou, 2023), used as a criterion for coverage