Root Canal Retreatment with 3D CBCT Scans in East Finchley

Root canal retreatment is required when a tooth fails to heal after the first procedure or develops new problems months or years later. You should seek an assessment if you notice persistent toothache, ongoing sensitivity, tenderness when chewing, or a small bump on the gum near the tooth. Sometimes there are no symptoms, but a routine X-ray shows the infection has not cleared. Reasons for failure include complex canal anatomy that was missed at first, a delay in placing the crown after treatment, or new decay allowing bacteria to re-enter the tooth. Our aim is to identify the exact cause of failure so retreatment has the best chance of success.

Understanding what went wrong the first time is key. A 2D X-ray offers a limited view, while a Cone Beam Computed Tomography scan gives a detailed 3D image of the tooth, roots, and surrounding bone. This helps with difficult cases. With CBCT, Dr. Ashok Reddy can see hidden canals, tiny cracks, or unusual root shapes. This leads to a precise diagnosis and a predictable plan, improving the likelihood of success. For patients in East Finchley, having this in-house scanner speeds up diagnosis and reduces guesswork.

A patient from Muswell Hill had a persistent dull ache in a molar treated elsewhere a year earlier. Standard X-rays were unclear. A CBCT scan at our practice revealed a small untreated fourth canal hidden on the 2D image. By finding and treating this missed canal during retreatment, we resolved symptoms and saved the tooth.

The retreatment process is meticulous and requires advanced skill. First you have a 45 minute consultation that includes the CBCT scan to determine if retreatment is the right option. Then the treatment appointment, usually 90 to 120 minutes, includes local anaesthetic to numb the area. We access the root canal, often through the existing crown, remove the old filling material, and with a dental operating microscope we clean, disinfect, and reshape the canals. We address the source of the failure. Finally the canals are filled and sealed, a temporary filling placed, and you are referred back to your general dentist for a new permanent crown or restoration to protect the tooth long term.

After retreatment you may have some tenderness for a few days while the area heals. Over the counter painkillers such as ibuprofen help. Avoid chewing on the treated tooth until the final restoration is placed. Your tooth might feel different at first, but this settles. Long term the retreated tooth needs the same care as any other tooth: regular brushing, flossing, and check ups. Red flags during office hours (Mon Wed Fri 9 to 5, Tue Thu 11 to 7) include severe pain not relieved by painkillers, swelling that increases after day 3, or a return of infection symptoms.

Retreatment has a high success rate, often 75 to 90 percent in specialist hands, but it is not always the right choice. In your consultation we discuss all viable options. Apicoectomy or endodontic surgery may help if the infection is at the very tip of the root. This approach is typically considered if retreatment is unlikely to succeed. Extraction might be the best long term option if the tooth is badly damaged or lacks bone support. We aim to save natural teeth but will be honest if extraction offers a better outcome. The missing tooth can then be replaced with an implant or bridge.

A patient from Highgate came with a failing front tooth. The CBCT showed a deep vertical root fracture that could not be treated. This clear diagnosis avoided a costly and likely unsuccessful retreatment. We advised extraction and an implant as the most reliable long term solution, saving time and discomfort.

Root canal retreatment is more complex and time consuming than an initial root canal, and the price reflects this. The fee depends on case difficulty and which tooth is treated. As a private practice we do not offer NHS care. You will receive a full personalised cost breakdown after your initial consultation and CBCT scan, with no hidden fees. Our practice accepts several private insurance plans including Max Bupa, Denplan, and Cigna. We recommend you contact your provider to understand your coverage for advanced endodontic procedures.

To make an informed choice about your dental health you should ask the right questions whether you see us or another practice in North London. Consider asking: Do you use a dental operating microscope and CBCT scanning for all retreatment cases? What is your success rate for a case like mine? What is causing my initial treatment to fail? What does the quoted fee include and does it cover the scan and follow up visits? What are the risks if you choose not to have retreatment? Who will place the final crown after treatment? What are the alternatives and why is retreatment the recommended option for me?