A molar root canal typically costs between $900 and $1,500 without insurance, making it one of the more expensive routine dental procedures. The final number depends on how many root canals the tooth has, where you live, and whether you see a general dentist or an endodontist (a root canal specialist). That price also covers only the root canal itself, not the crown you’ll almost certainly need afterward.
Why Molars Cost More Than Other Teeth
Root canal pricing is tied directly to the complexity of the tooth. Front teeth have a single root canal, premolars have one or two, and molars have three or four. Each canal needs to be individually cleaned, shaped, and filled. That extra work means more time in the chair, more materials, and a higher fee.
A front tooth root canal generally runs $600 to $900. A premolar falls in the $700 to $1,100 range. Molars sit at the top because they demand the most precision and the longest appointments. If you’re referred to an endodontist rather than having your general dentist perform the procedure, expect fees on the higher end. Endodontists use specialized equipment like surgical microscopes and typically charge 20% to 40% more, though their completion rates on difficult cases are higher.
The Crown You’ll Need Afterward
The root canal fee (billed under ADA code D3330 for molars) covers everything from the first appointment through final filling of the canals, including any X-rays taken during the procedure. It does not include the permanent restoration.
For a molar, that restoration is almost always a crown. Back teeth absorb heavy chewing forces, and a root canal removes the nerve and blood supply that kept the tooth flexible. Without a crown, the tooth becomes brittle and prone to fracturing. According to Delta Dental, a permanent crown costs between $1,100 and $2,000 at out-of-network rates. That price typically includes the temporary crown, lab fabrication of the permanent one, local anesthesia, and the dentist’s time.
So the realistic all-in cost for a molar root canal plus crown, without insurance, ranges from roughly $2,000 to $3,500.
What Insurance Typically Covers
Dental insurance plans vary in how they classify root canals, and that classification makes a real difference in your out-of-pocket share. Some plans group root canals under “basic procedures” and cover them at around 80% of the allowed fee. Others place them in the “major procedures” category alongside crowns and bridges, covering only about 50%. The National Association of Dental Plans notes that root canals can fall into either category depending on your specific plan, so checking your benefits before scheduling is worth the five-minute phone call.
The crown will almost always be classified as a major procedure, typically reimbursed at 50%. If both the root canal and crown land in the major category, you could be responsible for half the total bill. Using an in-network provider helps because negotiated fees are lower than what a dentist charges patients without insurance.
A few other insurance details to keep in mind:
- Annual maximums: Most dental plans cap benefits at $1,000 to $2,000 per year. A molar root canal plus crown can eat through that entire limit in one visit.
- Waiting periods: Individual plans often restrict major procedure coverage during the first year. If you bought your plan recently, your root canal or crown may not be covered yet.
- Out-of-network penalties: Coverage can drop from 80% to 60% or lower when you see a provider outside your plan’s network.
Ways to Lower the Cost
University dental schools are one of the most reliable ways to save. Dental school clinics charge roughly a third to half of private practice rates while maintaining the same standard of care. The tradeoff is time: appointments take longer because students work under faculty supervision, and scheduling can be less flexible. Most major cities have at least one dental school clinic, and many have endodontic residency programs where postgraduate trainees perform root canals at reduced fees.
Dental savings plans (sometimes called dental discount plans) are another option. These aren’t insurance. You pay an annual membership fee, usually $100 to $200, and receive discounted rates at participating dentists, often 15% to 40% off standard fees. They’re especially useful if you don’t have employer-sponsored insurance or if your plan’s annual maximum is already tapped out.
Many private dental offices also offer in-house payment plans that split the total cost across several months with no interest. If the practice doesn’t advertise this, ask. Third-party financing through companies like CareCredit works similarly, though interest rates can climb steeply if you don’t pay within the promotional period.
Retreatment Costs More
If a previous root canal on the same molar has failed, retreatment (billed under ADA code D3348) is more expensive than the original procedure. The endodontist has to remove the old filling material, locate any missed canals, and re-treat the entire tooth. Retreatment on a molar typically costs 20% to 30% more than a first-time root canal, and insurance coverage can be inconsistent since some plans limit how often they’ll pay for endodontic therapy on the same tooth.
What Affects Your Specific Price
Geography plays a significant role. Root canal fees in major metro areas like New York, San Francisco, or Boston can run 30% to 50% higher than in smaller cities or rural areas. The cost of running a dental practice, from rent to staff salaries, gets passed along to patients.
The tooth’s condition also matters. A straightforward molar with clearly visible, relatively straight canals is faster to treat than one with curved roots, calcified canals, or an active infection that requires additional appointments. Some cases need a course of antibiotics before the root canal can be completed, and severely infected teeth may require two visits instead of one, though most endodontists don’t charge extra for the additional appointment if it was anticipated as part of the treatment plan.
Finally, the type of imaging your provider uses can influence cost. Cone-beam CT scans, which create a 3D view of the tooth and surrounding bone, provide more detail than standard X-rays and are increasingly common in endodontic offices. Some practices include the scan in their treatment fee; others bill it separately at $150 to $350.