Both general dentists and specialist endodontists are trained to perform root canals. The honest answer about when each makes sense depends on the tooth, the case complexity, and your personal priorities. Here's how to decide.
| Comparison | Specialist Endodontist | General Dentist |
|---|---|---|
| Years of training beyond dental school | 2–3 additional years (residency) | 0 — root canals are part of general DDS curriculum |
| Approximate root canals performed per year | 1,000–2,000+ | 20–50 |
| Operating microscope | Standard equipment, used for every case | Used by < 5% of general dentists |
| CBCT 3D imaging | Standard — J. Morita Veraview X800 in Endo Mode (80 µm voxel, 40 × 40 mm limited FOV), per AAE/AAOMR position statement | Rare in general practice |
| Average procedure time | 60–90 minutes (often single visit) | 90–180 minutes (often two visits) |
| Success rate (published, peer-reviewed) | 92–98% | 85–90% |
| Referral pattern | Receives referrals from general dentists | Refers complex cases to specialists |
| Re-treatment of failed root canals | Routinely performed | Almost always referred to specialist |
| Endodontic microsurgery (apicoectomy) | Performed in-house | Always referred to specialist |
Sources: American Association of Endodontists training requirements; Ng et al. (2011) systematic review of endodontic outcomes; Burry et al. (2016) JOE comparison of GP vs. specialist outcomes; Karobari et al. (2026) JOE scoping review of root canal irrigation technologies — confirming that operator skill, magnification, and case volume predict outcomes more reliably than any specific irrigation device.
Every licensed dentist may legally perform root canals on any tooth. Yet molar referrals to endodontists are routine — even from dentists who do root canals every week. The candid reasons general dentists themselves give:
The second mesiobuccal canal (MB2) of an upper molar is the classic example: when clinicians used an operating microscope and took the time to trough for it, the MB2 was located in up to 93% of maxillary first molars — yet it is one of the most commonly missed canals in general practice, and a missed canal is a leading cause of root canal failure. Most general dentists know this literature, which is exactly why many send molars out.
A complicated molar can take a general dentist 90–180 minutes across two visits. In that same chair time, the practice could complete several crowns or fillings — procedures they do every day at high efficiency. Referring the molar is often both the better business decision and the better clinical outcome, which is why even dentists who enjoy endodontics routinely refer their molars.
An operating microscope and a limited-field CBCT together represent a six-figure investment that makes sense at 1,000+ root canals per year — not at the 20–50 cases a typical general practice sees. Fewer than 5% of general dentists use a microscope for root canals. Rather than treat complex anatomy without magnification, many simply refer to an office where it's standard on every case.
General dentists who keep straightforward front teeth and premolars in-house and refer molars, retreatments, and calcified canals are following exactly what structured case-difficulty tools like the AAE Case Difficulty Assessment Form recommend. A dentist who refers your molar isn't admitting a weakness — they're doing the case selection that published outcome data rewards.
U.S. insurance-claims data makes the referral pattern visible. The share of each procedure performed by endodontists rises steadily with difficulty — from one-third of front-tooth root canals to more than four out of five retreatments (Fluent Research / American Association of Endodontists, Q1 2026 market analysis, 2025 data).
Every one of these referrals was a dentist's own choice — any licensed dentist may legally treat any of these teeth. The full analysis is covered in our article on who actually performs root canal retreatments.
Particularly throbbing pain that wakes you up, lingers after hot/cold, or radiates to the jaw or ear — these symptoms suggest pulpal involvement that benefits from specialist diagnosis.
Most general dentists refer cases that involve curved or calcified canals, retreatment of a previous root canal, or molars with multiple canals. Trust the referral — they're sending you to a specialist for a reason.
Endodontic retreatment is technically demanding and is one of the procedures most consistently shown to have better outcomes when done by a specialist (per the American Association of Endodontists position statement).
Cracks are notoriously hard to diagnose without high magnification. A specialist with an operating microscope can identify cracks invisible to the naked eye and determine whether the tooth is salvageable before treatment begins.
Trauma cases — especially in young patients with developing teeth — require specialized protocols (regenerative endodontics, MTA apexification) that general dentists are not typically trained to perform.
If you've had a difficult root canal experience before, or if your dentist warns the case will be complicated, the higher success rate, faster procedure time, and microscope-assisted precision of a specialist often makes the experience meaningfully easier.
Your general dentist is your home base for dental care, and a great general dentist often handles straightforward root canals well. I refer cases back to general dentists when the procedure is simple enough that the specialist tooling provides minimal added value — for example, single-rooted incisors with vital pulp and no calcification.
But for molars, retreatments, calcified canals, curved roots, traumatic injuries, and any case where a previous root canal has failed: the published evidence consistently favors specialist treatment. The microscope, the J. Morita Veraview X800 CBCT (Endo Mode), and most importantly the volume of cases (1,000+ per year vs. 20–50) makes a real difference in success rates.
If you're not sure which category your tooth falls into, call us for a consultation. If your case is straightforward enough that your general dentist could handle it well, I'll tell you. The goal is the right care for your specific tooth — not just more care.
— Dr. Jason Kung, DDS, MS · UCLA & OHSU-trained Specialist Endodontist
An endodontist is a dentist who has completed 2–3 additional years of accredited residency training after dental school, focused exclusively on the diagnosis and treatment of dental pulp and root issues. In California, the title 'Specialist in Endodontics' (or 'Specialist Endodontist') is regulated by the Dental Board and may only be used by dentists who have completed a CODA-accredited endodontic residency program.
Not exactly. All practicing specialist endodontists in California must have completed a CODA-accredited residency. 'Board certification' (Diplomate of the American Board of Endodontics) is an additional voluntary credential held by approximately 25% of US endodontists. The clinical training is identical; board certification involves additional written and oral examinations after residency.
Yes. PPO insurance plans generally cover specialist treatment at the same coverage percentage as general dentist treatment, though out-of-pocket costs may differ slightly depending on whether the specialist is in-network. We are out-of-network for most PPO plans but submit claims directly so patients receive their full PPO benefits.
Specialists charge approximately 20–40% more than general dentists for root canal treatment. This reflects the additional training, the time investment in advanced equipment (operating microscope, J. Morita Veraview X800 CBCT, ultrasonic instruments), and the longer chairside time per case. The published success rate difference (92–98% vs 85–90%) generally makes the cost difference worthwhile, particularly for molars and complex cases.
No. You can schedule directly with our office without a referral, and your insurance does not require one for specialist endodontic care under California PPO rules. After treatment, we send a complete summary back to your general dentist for the follow-up crown restoration.
For straightforward anterior (front) teeth and simple premolars, many general dentists can perform root canals successfully. For molars, retreatments, calcified canals, curved canals, or any case where a previous root canal has failed, the published evidence consistently favors specialist treatment. When in doubt, the safest choice is to consult a specialist for an evaluation — we'll tell you honestly if your case is straightforward enough that your general dentist could handle it.
The most-cited study comparing operator type is Alley et al. (Journal of Endodontics, 2004): root canals performed by general dentists showed approximately 89.7% retention at follow-up, vs. 98.1% for treatment performed by endodontists — an absolute difference of about 8–9 percentage points. The gap is widest for molars and retreatments. The American Association of Endodontists' Endodontic Treatment Outcomes resources reference similar data. The difference reflects extra residency training, microscope use, CBCT availability, and case-volume effects rather than any one factor in isolation.
No. You only pay for the procedures actually performed — there is no separate "specialist consultation" surcharge layered on top of your general dentist's exam. Your PPO insurance applies its endodontic-procedure benefit (typically 50–80% coverage for major services) regardless of who performs the work. We are out-of-network for most PPO plans but submit claims directly so patients receive their full PPO benefits at our negotiated fees.
Dentists use structured case-difficulty assessment tools — most commonly the American Association of Endodontists (AAE) Case Difficulty Assessment Form — to grade how challenging a specific tooth will be before treatment begins. A 2026 International Endodontic Journal scoping review (Lin et al.) confirmed these tools weigh factors like tooth position, canal curvature and calcification, whether a previous root canal has failed, and the presence of resorption or trauma. Simple front teeth are often well within a general dentist's scope, while molars, retreatments, calcified or sharply curved canals, and surgical cases are typically referred to a specialist endodontist. It is completely reasonable to ask your dentist how they rate your tooth's difficulty.
The evidence says who matters more than what. A 2026 systematic review and meta-analysis in Scientific Reports (Mushtaq et al., 84 studies, 11,965 treated teeth) compared all major root canal filling techniques and materials and found that no technique or material consistently outperformed the others beyond three years — but treatments performed by specialists showed significantly higher success rates than those performed by general dentists or dental students (p < 0.001). The authors concluded that operator expertise and case selection have a greater impact on outcomes than the filling technique. In practical terms: a root canal is not better because a newer sealer or device was used; it is better because the person doing it has the training, magnification, and case volume to execute every step well.
Not necessarily. Any licensed general dentist may focus their practice on root canal treatment and describe it as 'limited to endodontics' — that phrase describes what the office does, not the dentist's training. The title 'endodontist' or 'Specialist in Endodontics' is regulated differently: under the American Dental Association's specialty-recognition rules and California Dental Board regulations, only a dentist who has completed a 2–3 year CODA-accredited endodontic residency may advertise as a specialist in endodontics. The distinction matters because the residency — not the practice focus — is where microsurgery, CBCT interpretation, and complex-case training happen. If you want to verify, simply ask where the doctor completed their endodontic residency (a specialist will gladly tell you), or search the American Association of Endodontists' 'Find My Endodontist' directory, which lists only residency-trained endodontists.
Not sure if your case needs a specialist? A 30-minute consultation with Dr. Kung will tell you honestly — and if your general dentist can handle it, we'll say so.