Ivy Endodontics at Princeton · Advanced Procedures
Root Canal Retreatment in Plainsboro, NJ
When a previous root canal hasn't healed, retreatment can often save your tooth. Ivy Endodontics provides precise, compassionate retreatment for patients from Princeton, West Windsor, Cranbury and across Central Jersey.
- 3D CBCT Imaging
- Dental Operating Microscopes
- No Referral Required
Specialized Care You Can Trust.
At Ivy Endodontics, we specialize in complex endodontic cases with a focus on root canal retreatment. Whether your initial root canal therapy didn't fully resolve your symptoms or new problems have developed months or years later, Dr. Franco DeMayo and Dr. Jean Kang provide a thorough diagnosis and a clear treatment plan to restore your dental health.
Retreatment cases bring challenges a first-time root canal does not: hidden or curved canals, old filling material, posts, and sometimes small cracks. We use 3D cone beam (CBCT) imaging, dental operating microscopes and bioceramic materials to give your tooth the best chance of long-term success.
Understanding Retreatment
Endodontic retreatment, sometimes called a root canal redo, is a procedure to reopen a tooth that has already had root canal therapy. The old filling material is removed, the canals are cleaned and disinfected again, and the tooth is resealed. For many patients, it is the most conservative way to keep a natural tooth when the first treatment did not heal as expected.
When Is Retreatment Needed?
Endodontic retreatment becomes necessary when a previously treated tooth fails to heal or develops new problems. This can happen for several reasons:
- Incomplete removal of infected tissue during the first treatment
- New decay or a leaking crown that allows bacteria back into the tooth
- Curved, narrow or extra canals that were not fully cleaned the first time
- A delayed final crown, allowing saliva to contaminate the canals
- Root fracture or perforation from the original treatment
Signs Your Root Canal May Need Retreatment
- Pain when biting or chewing on a tooth that already had a root canal
- Swelling or tenderness in the gums near the treated tooth
- A small pimple-like bump on the gum that may drain
- A dull ache or sensitivity that returns months or years after treatment
- An infection or dark area at the root tip found on a routine X-ray
Some failing root canals cause no symptoms at all, which is why your dentist may refer you after spotting a change on an X-ray. If you have sudden swelling or severe pain, contact us for emergency endodontic care.
Our Retreatment Process
Our step-by-step approach is designed to find and correct the cause of the problem:
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3D CBCT imaging with our Carestream CS 9600 to locate missed canals, cracks or infection
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Careful removal of posts and previous filling materials
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Cleaning and shaping of every canal using a dental microscope, flexible nickel titanium files and passive ultrasonic irrigation
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Sealing the canals in three dimensions with bioceramic sealers that support healing
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Coordination with your dentist on a final crown or restoration to protect the tooth long term
Many retreatments are completed in one or two visits, and we will explain what to expect for your specific tooth. If you feel anxious about dental care, ask about nitrous oxide to help you relax.
Retreatment, Apicoectomy or Extraction?
Retreatment is usually the first option we consider because it addresses the entire root canal system from inside the tooth. When retreatment isn't practical, for example when a post or crown can't be removed safely, an apicoectomy may treat the infection at the root tip instead. Extraction followed by an implant or bridge is generally a last resort. Keeping your natural tooth avoids additional surgery and the time and cost of a replacement, and our 3D imaging helps us recommend the option that fits your situation.
What to Expect After Retreatment
Mild tenderness for a few days is normal and is usually managed with over-the-counter pain relievers. Please review our endodontic treatment instructions for home care. It is important to return to your general dentist promptly for your permanent crown or filling, since the final restoration protects the tooth from new bacteria. We may also schedule a follow-up X-ray to confirm the area is healing.
Root Canal Retreatment for Princeton and Central Jersey Patients
Our office at 666 Plainsboro Road, Suite 608 , is a short drive from Princeton, West Windsor, Cranbury and communities throughout Mercer County and Central Jersey. Formerly known as Jean Kang Endodontics, our practice works closely with general dentists across the region. Referring doctors can send patients through our online referral form.
Retreatment FAQs
Can a root canal fail years later?
Yes. A tooth can heal well for years and then develop new problems from decay, a cracked or leaking crown, or bacteria in a canal that wasn't detected the first time. Retreatment can often resolve the issue.
Is root canal retreatment painful?
Retreatment is performed with local anesthesia, so the procedure itself should feel similar to your original root canal. Some tenderness afterward is normal and typically fades within a few days.
How successful is endodontic retreatment?
When the cause of the failure can be identified and corrected, retreatment has a favorable outlook, and many retreated teeth function for years. After your 3D exam, your endodontist will discuss the prognosis for your specific tooth.
Do I need a referral?
No referral is required. You can call our office directly at (609) 799-7427, and we are happy to coordinate with your general dentist.
Does insurance cover root canal retreatment?
Many dental insurance plans include coverage for endodontic retreatment. Our team will review your benefits and explain your costs before treatment begins.
Don't Accept Tooth Loss.
If you've been told your tooth cannot be saved, get a second opinion from Ivy Endodontics. Many teeth that appear hopeless can be successfully treated through retreatment. Call (609) 799-7427 to schedule your consultation in Plainsboro.
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