2026 data Public-data reference. official source

Endodontic Therapy - Molar Tooth

Open-data reference.

CDT D3330 Endodontics · typical chair time: 120 min

About endodontic therapy - molar tooth

What it is: Root canal treatment, molar The American Dental Association assigns this procedure CDT code D3330, 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 $1,459 based on the ADA Health Policy Institute Survey of Dental Fees (2024). State variation pushes this between $$1,286 (lowest cost-of-living states) and $$1,748 (highest). State Medicaid programs that cover endodontic therapy - molar tooth for adults reimburse an average of $706 (range $501–$944 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.

$1,459
National avg. private cost
$706
Avg. Medicaid reimbursement
(across covering states)
19/51
States covering this procedure
36%
Max state spread (private)

Top 10 states: Endodontic Therapy - Molar Tooth private cost vs national average

New York$1748District of Columbia$1734California$1689Hawaii$1687New Jersey$1687Massachusetts$1647Maryland$1643Washington$1632Connecticut$1628Alaska$1573
Top 10 states: Endodontic Therapy - Molar Tooth private cost vs national average

Endodontic Therapy - Molar Tooth cost by state

State Medicaid fee Private estimate Adult coverage
Alabama Not covered $1,290 emergency
Alaska $944 $1,573 extensive
Arizona Not covered $1,439 emergency
Arkansas Not covered $1,309 limited
California $688 $1,689 extensive
Colorado Not covered $1,528 limited
Connecticut $770 $1,628 extensive
Delaware Not covered $1,494 none
District of Columbia $845 $1,734 extensive
Florida Not covered $1,479 emergency
Georgia Not covered $1,378 emergency
Hawaii Not covered $1,687 limited
Idaho Not covered $1,394 limited
Illinois $501 $1,488 extensive
Indiana Not covered $1,354 limited
Iowa $630 $1,347 extensive
Kansas Not covered $1,350 emergency
Kentucky Not covered $1,324 limited
Louisiana Not covered $1,360 limited
Maine Not covered $1,481 limited
Maryland $682 $1,643 extensive
Massachusetts $746 $1,647 extensive
Michigan $548 $1,414 extensive
Minnesota $828 $1,497 extensive
Mississippi Not covered $1,286 emergency
Missouri Not covered $1,360 limited
Montana Not covered $1,400 limited
Nebraska Not covered $1,362 limited
Nevada Not covered $1,481 limited
New Hampshire $595 $1,562 extensive
New Jersey $688 $1,687 extensive
New Mexico Not covered $1,375 limited
New York $880 $1,748 extensive
North Carolina Not covered $1,379 limited
North Dakota $770 $1,369 extensive
Ohio Not covered $1,360 limited
Oklahoma Not covered $1,333 emergency
Oregon $682 $1,524 extensive
Pennsylvania Not covered $1,454 limited
Rhode Island $606 $1,497 extensive
South Carolina Not covered $1,362 limited
South Dakota Not covered $1,320 emergency
Tennessee Not covered $1,347 emergency
Texas Not covered $1,436 emergency
Utah Not covered $1,437 limited
Vermont $676 $1,488 extensive
Virginia $630 $1,518 extensive
Washington $705 $1,632 extensive
West Virginia Not covered $1,309 limited
Wisconsin Not covered $1,426 limited
Wyoming Not covered $1,420 limited

Analysis: how to think about endodontic therapy - molar tooth costs

The roughly 36% spread between the lowest- and highest-cost states for endodontic therapy - molar tooth comes almost entirely from cost of living, not from differences in clinical complexity. A dentist's fee for a D3330 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 endodontic therapy - molar tooth under their adult Medicaid program, the reimbursement averages around $706 — 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 endodontic therapy - molar tooth cost in the United States?
The national private-market average for endodontic therapy - molar tooth (CDT D3330) is approximately $1,459 based on the ADA Health Policy Institute Survey of Dental Fees (2024). State variation runs from $1,286 (lowest cost-of-living states) to $1,748 (highest).
Does Medicaid cover endodontic therapy - molar tooth?
19 state Medicaid programs cover endodontic therapy - molar tooth for adults, with average reimbursement of $706 (range $501-$944). Coverage varies by state — see the per-state table on this page.
Why does endodontic therapy - molar tooth 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.