Molar root canal cost in St. Louis, MO — inpatient
In St. Louis, MO-IL, 2 hospitals list a cash price for root canal treatment on a molar (back tooth), not including the final crown as an inpatient: from $745.50 to $745.50, with a median of $745.50. The lowest listed price is at Mercy Hospitals East Communities and 1 other hospital. Across Missouri, the median is $745.50 at 2 hospitals.
Cash prices at 2 facilities across 2 cities for code D3330, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between Jun 12, 2026 and Jun 12, 2026.
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in St. Louis, MO-IL.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Mercy Hospitals East Communities lowest Washington, MO Root Canal Therapy 3 Canals | $745.50 | $994.00 | $417.48–$844.90 | 25% | Jun 12, 2026 source file |
| Mercy Hospital Lincoln lowest Elsberry, MO Root Canal Therapy 3 Canals | $745.50 | $994.00 | $417.48–$894.60 | 25% | Jun 12, 2026 source file |
| Mercy Hospital Lincoln lowest Elsberry, MO Root Canal Therapy 3 Canals | $745.50 | $994.00 | $417.48–$894.60 | 25% | Jun 12, 2026 source file |
| Mercy Hospital Lincoln lowest Elsberry, MO Root Canal Therapy 3 Canals | $745.50 | $994.00 | $417.48–$894.60 | 25% | Jun 12, 2026 source file |
| Mercy Hospital Lincoln lowest Elsberry, MO Root Canal Therapy 3 Canals | $745.50 | $994.00 | $417.48–$894.60 | 25% | Jun 12, 2026 source file |
| Mercy Hospital Lincoln lowest Elsberry, MO Root Canal Therapy 3 Canals | $745.50 | $994.00 | $417.48–$894.60 | 25% | Jun 12, 2026 source file |
Inpatient: lowest $745.50, median $745.50, highest $745.50.
As an outpatient, the same code is billed by 2 facilities here, median $745.50 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 2 of 2 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at none is it below every plan's rate. If you have insurance but have not met your deductible, you usually pay your plan's negotiated rate, which falls somewhere in the "Insurers pay" column. Paying cash can cost less, but a cash payment usually does not count toward your deductible. Ask the hospital for both numbers before you book.
What it is
A root canal on a molar removes infected or damaged pulp from the tooth's roots, cleans and shapes the canals, and seals them. Molars have more canals than front teeth, so the treatment usually takes longer.
What the price covers
The fee usually covers all appointments to finish the root canal and X-rays taken during treatment. The exam and X-rays before treatment, a buildup and the crown that usually follows are billed separately.