Retreatment vs. Apicoectomy: A Guide for West Finchley Patients

The main difference lies in the approach. Root canal retreatment is a non surgical procedure where we work through the top of the tooth, like the original root canal, to clean and reseal the canals. It is usually the first line of defence. An apicoectomy is a small surgical procedure. It involves accessing the tip of the tooth root through the gum to remove infected tissue and seal the root from the end. The choice is not about which is universally better, but which fits your tooth’s problem. A 3D scan at our Finchley practice gives the detailed view needed to make this diagnosis. Success rates are strong for both procedures, with retreatment often achieving 70 to 90 percent and apicoectomy frequently above 90 percent for suitable cases.

Retreatment is often the preferred first step if it is feasible. It works when the initial root canal failed due to issues that can be corrected from inside the tooth, such as missed canals, incomplete cleaning, or new decay that has contaminated the original filling. If your tooth’s crown and post can be safely removed without risking fracture, retreatment allows us to fully re-clean the entire canal system. We use dental operating microscopes to locate and treat complex anatomy that may have been missed previously. A patient from West Finchley recently presented with a lingering low grade infection. The 3D scan showed a previously untreated canal branch, making retreatment the ideal and successful solution.

An apicoectomy becomes the necessary choice when retreatment is not feasible or has already failed. This occurs when a tooth has a large, well fitting crown and post that cannot be removed without a high risk of cracking the root. It is also the only option if the canal is blocked by a separated instrument or a calcification that prevents access from the top. If the infection is located solely at the tip of the root (an apical cyst), surgery is a direct way to remove it. For example, a patient with a perfectly good bridge had an infection on a supporting tooth. Removing the bridge for retreatment would be destructive and costly. An apicoectomy allowed us to resolve the infection surgically while preserving the existing dental work.

First, we numb the area with local anaesthetic. Next, we access the inside of the tooth, remove the old root canal filling material, and thoroughly clean and disinfect the canals using our dental operating microscope. Once the canals are clean, we refill and seal them. Finally, a temporary filling is placed. The entire process typically requires one to two appointments, each lasting between 60 and 120 minutes.

After numbing the area, a small gum incision is made to access the root tip. The infected tissue and the last few millimetres of the root tip are removed. A small filling is placed to seal the end of the root canal, and the gum is closed with a few stitches. This procedure is usually completed in a single visit of 60-90 minutes.

Recovery mirrors the experience of a standard root canal. You may feel tenderness or sensitivity for 2-4 days, manageable with over-the-counter pain relief such as ibuprofen. Most patients return to normal activity the same day, but you should avoid chewing on the tooth until a permanent restoration is placed. Call us during office hours (Mon/Wed/Fri 9-5, Tue/Thu 11-7) if you have severe pain, visible swelling, or an allergic reaction to medication.

This is a surgical procedure, so recovery needs a bit more care. Swelling and bruising are common and peak around 48-72 hours; ice packs help. Some discomfort lasts 3-5 days and may require prescribed pain medication. Soft foods are advised for a few days, and you should follow cleaning instructions around the stitch area. The stitches are usually removed after 7 days. Call our practice during office hours if you have uncontrolled bleeding, increasing pain after day 3, or a fever above 38 C.

In some cases the tooth is too damaged to save with either procedure. If the tooth has a severe crack or fracture, or lacks enough bone support, extraction may be the only option. After extraction, the missing tooth can be replaced with an implant, a fixed bridge, or a removable partial denture. An implant is the most durable long term solution, but it involves a higher upfront cost and a longer treatment timeline of 4 to 9 months. We will discuss the pros and cons of saving the tooth versus extraction and replacement during your consultation at our Finchley practice.

To choose what suits you, ask questions during your visit with us or another practice in West Finchley. - Why did my original root canal fail? - Based on my 3D scan, what is the expected success rate for retreatment versus an apicoectomy in my case? - What are the full costs for each procedure, including the consultation and any scans? - What qualifications and experience do you have with these procedures? (Dr. Reddy holds an MSc in Endodontics). - If retreatment fails, is an apicoectomy still an option afterward? - What are the risks if I choose to do nothing?

The cost of saving a tooth depends on the required procedure and the case complexity (for example a front tooth versus a molar). An apicoectomy is a surgical procedure and priced differently from non surgical retreatment. A full, transparent quote is provided after a consultation and a 3D CBCT scan, which is essential for accurate diagnosis. We are a private practice and do not offer NHS treatment. However, we accept several private insurance plans, including Max Bupa, Denplan, and Cigna. Our team will assist you with any insurance paperwork.