Think You Might Need a Root Canal? We'll Get You the Right Care.
We diagnose the problem, refer you to a trusted endodontist for the root canal itself, and take care of the restoration once you're back with us — so you're never navigating it alone.
Medically reviewed by Dr. Boris Zusin, DDS, FAGD, MBA, MS, Diplomate, American Board of Dental Sleep Medicine (ABDSM) · Last reviewed July 31, 2026

What Is a Root Canal, and Why Might You Need One?
Inside every tooth, beneath the enamel and dentin, is a soft tissue called pulp — containing nerves and blood vessels. When that pulp becomes inflamed or infected, usually from deep decay, a crack, a faulty old filling or crown, or trauma, it can cause real pain and, left untreated, an abscess. Root canal treatment removes the infected pulp, cleans and disinfects the canal, and seals it — relieving the pain and saving the natural tooth.
A fully developed tooth can function normally without its pulp, since surrounding tissue continues to nourish it — which is why saving the natural tooth is almost always preferable to extracting it.
Am I a Candidate?
You may need a root canal if you're noticing severe pain while chewing or biting, a pimple-like bump on the gums, a chipped or cracked tooth, lingering sensitivity to hot or cold, swollen or tender gums, or deep decay or darkening near the gumline. An exam (often with an X-ray) is the only way to know for sure — if a root canal is needed, we'll refer you to one of the trusted endodontists we work with.
Care From a Team That Knows You
Dr. Boris Zusin is an expert in general, cosmetic, implant, and dental sleep medicine, with 30+ years of clinical experience and ongoing continuing education. Lena Zusin, RDH works alongside him to make every visit as warm and comfortable as possible.
“Drawing upon our combined skills refined through years of experience and continued education, Lena and I will do everything possible to ensure that your entire dental experience at our office is as good as possible.” — Dr. Boris Zusin
- Uncompromising clinical excellence
- Meticulous attention to detail
- A gentle approach to dentistry
FAQ: Root Canal Treatment at Zusin Dental, NYC
A root canal treats inflammation or infection inside the soft tissue (pulp) at the center of a tooth — usually caused by deep decay, a cracked or chipped tooth, a faulty older filling or crown, or trauma. The infected pulp is removed, the space is cleaned, disinfected, and sealed, which relieves pain and saves the natural tooth rather than extracting it.
Endodontists complete additional years of specialized training focused entirely on treating the inside of the tooth, and they use equipment — operating microscopes, specialized imaging — built specifically for that work. For a procedure this precise, we'd rather send you to someone who does it every day than perform it occasionally ourselves. We stay involved throughout: we diagnose, refer, and then restore the tooth once treatment is complete.
Not typically — with modern anesthesia, a root canal generally feels similar to getting a filling, and it relieves the pain that was already there from the infection rather than causing new pain. Mild soreness for a few days afterward is normal and manageable with over-the-counter pain relief.
- Severe pain while chewing or biting
- A pimple-like bump on the gums
- A chipped or cracked tooth
- Lingering sensitivity to hot or cold, even after the sensation should have faded
- Swollen or tender gums
- Deep decay or darkening near the gumline
Any of these are worth a prompt exam — catching it early usually means simpler, less costly treatment.
You'll come back to Zusin Dental so we can restore the tooth, usually with a custom crown, to protect it and return it to full function. With proper care, a tooth that's had a root canal and a well-fitted crown can often last the rest of your life.
Cost depends on which tooth is affected — molars are more complex to treat and typically cost more than front teeth. Most dental insurance plans provide at least partial coverage for root canal treatment. We'll help you understand the estimate from the endodontist's office alongside the cost of your follow-up crown here.
Saving the natural tooth with a root canal is generally preferable when possible: it preserves normal biting force, avoids the additional cost and time of replacing an extracted tooth with an implant or bridge, and keeps neighboring teeth from shifting. Extraction becomes the better option only when a tooth is too damaged to save.
Learn More From Our Blog
Sources
- What is a Root Canal? — American Association of Endodontists (AAE)
- What's the Difference Between a Dentist and an Endodontist? — American Association of Endodontists (AAE)
Ready to Get Started?
You will never be treated like a statistic at Zusin Dental. Let's talk about what's right for you.
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“Knowledge is an understatement when you talk about Dr. Zusin! My family and I have been patients of his for over 20 years. I always feel I am given the best advice and never pressured into any unnecessary treatment.”
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“I tried a couple different dentists in NYC and Zusin Dental is the best. They are thorough, they don't try and upsell you services you don't need, and they offer appointments on Saturday. The best cleaning I ever had!”
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“Routinely SUPERB level of care, including Dr. Zusin having made himself available for emergent care when needed. The office is always spotlessly clean and there is no waiting at appointment time. Pain-free dentistry!”
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“I have never experienced pain with Dr. Zusin. For a practice in busy Manhattan, their office has a small town feel, very relaxed and personable. Lena is always quick to respond to appointment requests or changes.”
Molly P.
“Dr. Zusin is the best dentist! I have been visiting his office for the majority of my life. He has expertly performed teeth whitening and Invisalign, and continued to save my teeth after I chipped my two front teeth.”
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“The West End office is state of the art and very relaxing. Dr. Zusin and Lena are a great team. No matter the dental problem you will get the best results. I highly recommend them.”
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