2026 data Public-data reference. official source

Retreatment of Previous Root Canal - Molar

Open-data reference.

CDT D3348 Endodontics · typical chair time: 150 min

About retreatment of previous root canal - molar

What it is: Redo of previous root canal, molar The American Dental Association assigns this procedure CDT code D3348, which is the standardized billing code used by every Medicaid program and dental insurance carrier in the United States.

What it costs: The national private-market average is $1,579 based on the ADA Health Policy Institute Survey of Dental Fees (2024). State variation pushes this between $$1,392 (lowest cost-of-living states) and $$1,893 (highest). State Medicaid programs that cover retreatment of previous root canal - molar for adults reimburse an average of $765 (range $544–$1,024 across covering states).

Why state matters: Two factors drive the spread. First, state Medicaid programs negotiate their own dental fee schedules — high-paying states pay roughly 1.5x what low-paying states pay for the identical CDT code. Second, the private market follows local cost of living, captured by the Bureau of Economic Analysis Regional Price Parities. The full state-by-state table is below.

$1,579
National avg. private cost
$765
Avg. Medicaid reimbursement
(across covering states)
19/51
States covering this procedure
36%
Max state spread (private)

Top 10 states: Retreatment of Previous Root Canal - Molar private cost vs national average

New York$1893District of Columbia$1877California$1828Hawaii$1827New Jersey$1827Massachusetts$1783Maryland$1779Washington$1767Connecticut$1762Alaska$1703
Top 10 states: Retreatment of Previous Root Canal - Molar private cost vs national average

Retreatment of Previous Root Canal - Molar cost by state

State Medicaid fee Private estimate Adult coverage
Alabama Not covered $1,397 emergency
Alaska $1,024 $1,703 extensive
Arizona Not covered $1,558 emergency
Arkansas Not covered $1,418 limited
California $746 $1,828 extensive
Colorado Not covered $1,655 limited
Connecticut $834 $1,762 extensive
Delaware Not covered $1,617 none
District of Columbia $916 $1,877 extensive
Florida Not covered $1,601 emergency
Georgia Not covered $1,492 emergency
Hawaii Not covered $1,827 limited
Idaho Not covered $1,510 limited
Illinois $544 $1,611 extensive
Indiana Not covered $1,466 limited
Iowa $683 $1,458 extensive
Kansas Not covered $1,461 emergency
Kentucky Not covered $1,434 limited
Louisiana Not covered $1,472 limited
Maine Not covered $1,603 limited
Maryland $739 $1,779 extensive
Massachusetts $809 $1,783 extensive
Michigan $594 $1,530 extensive
Minnesota $897 $1,621 extensive
Mississippi Not covered $1,392 emergency
Missouri Not covered $1,472 limited
Montana Not covered $1,516 limited
Nebraska Not covered $1,474 limited
Nevada Not covered $1,603 limited
New Hampshire $645 $1,692 extensive
New Jersey $746 $1,827 extensive
New Mexico Not covered $1,489 limited
New York $954 $1,893 extensive
North Carolina Not covered $1,493 limited
North Dakota $834 $1,482 extensive
Ohio Not covered $1,472 limited
Oklahoma Not covered $1,443 emergency
Oregon $739 $1,650 extensive
Pennsylvania Not covered $1,574 limited
Rhode Island $657 $1,621 extensive
South Carolina Not covered $1,474 limited
South Dakota Not covered $1,429 emergency
Tennessee Not covered $1,458 emergency
Texas Not covered $1,555 emergency
Utah Not covered $1,556 limited
Vermont $733 $1,611 extensive
Virginia $683 $1,643 extensive
Washington $765 $1,767 extensive
West Virginia Not covered $1,418 limited
Wisconsin Not covered $1,543 limited
Wyoming Not covered $1,537 limited

Analysis: how to think about retreatment of previous root canal - molar costs

The roughly 36% spread between the lowest- and highest-cost states for retreatment of previous root canal - molar comes almost entirely from cost of living, not from differences in clinical complexity. A dentist's fee for a D3348 procedure in Mississippi (BEA RPP 86.4) versus New York (BEA RPP 117.5) tracks the local rent, wages, and supply costs the practice has to cover. The ADA HPI national average we start from is the population-weighted survey value across all surveyed practices.

The Medicaid coverage column matters more than the Medicaid fee itself for most adults. In the 19 jurisdictions that do reimburse for retreatment of previous root canal - molar under their adult Medicaid program, the reimbursement averages around $765 — about 48% of the average private fee. Practices that accept Medicaid are absorbing the gap, which is why "Medicaid-accepting dentist" is not always easy to find. For a state-specific look at adult dental coverage scope, see each state page.

When budgeting for this procedure: treat the private estimate as a midpoint, not a ceiling. Specialty providers (oral surgeons, prosthodontists, periodontists) typically charge 15–40% above the general dentist rate for procedures within their specialty. Get a written treatment estimate before treatment, and ask whether the figure is the procedure fee alone or whether it bundles diagnostic codes (X-rays, exams) commonly billed alongside.

Related

Compare across all procedures

Read our methodology — how this data is sourced, computed, and verified.

Source: ADA Health Policy Institute, Survey of Dental Fees (2024) and Medicaid Reimbursement Compendium. State Medicaid rates: each state's published dental fee schedule (current 2026 Q1). Disclaimer: Costs shown are estimates derived from publicly-published averages and a state-level cost-of-living adjustment. Actual fees depend on the specific dentist, the geographic submarket, and clinical complexity. This site does not provide medical or dental advice.

Frequently asked questions

How much does retreatment of previous root canal - molar cost in the United States?
The national private-market average for retreatment of previous root canal - molar (CDT D3348) is approximately $1,579 based on the ADA Health Policy Institute Survey of Dental Fees (2024). State variation runs from $1,392 (lowest cost-of-living states) to $1,893 (highest).
Does Medicaid cover retreatment of previous root canal - molar?
19 state Medicaid programs cover retreatment of previous root canal - molar for adults, with average reimbursement of $765 (range $544-$1,024). Coverage varies by state — see the per-state table on this page.
Why does retreatment of previous root canal - molar cost so much more in some states?
Three drivers explain the variation: state cost of living (BEA Regional Price Parities, ranging from 86 to 117), state Medicaid policy (which affects provider supply), and dentist density per capita. See our analysis of state cost spread for the full breakdown.