Retreatment or Apicoectomy? Choosing in Finchley

Root canal retreatment is a non surgical procedure to re-clean and seal a tooth that already had root canal treatment. It is usually the first choice when the initial treatment has not succeeded. The aim is to fix the source of the new infection, which can come from complex canal anatomy that was missed or a crown leak. Retreatment has a high success rate, roughly 75 to 90 percent. A recent patient from North Finchley came to us with lingering pain months after a root canal done elsewhere. Our 3D CBCT scan found a small missed canal. A 90 minute retreatment solved the issue without surgery.

An apicoectomy is a minor surgery done when retreatment is not possible or has also failed. Instead of opening through the crown, we reach the root tip through the gum. The infected tip is removed and a small filling seals the end of the canal. This is needed when there is a persistent infection around the root tip that cannot be cleaned through the tooth, or if a crown and post make retreatment impractical. Success rates are high, often above 90 percent, because the source is removed directly.

The main difference is how it is done. Retreatment is non surgical and uses the original crown opening. It is like repeating the first root canal but with better precision using our dental operating microscopes. An apicoectomy is surgical. It needs a small gum incision to reach the root tip. It is usually quicker than a complex retreatment and is performed under local anaesthetic. Recovery from an apicoectomy involves a few days of swelling and tenderness, similar to an extraction, while retreatment recovery is typically milder.

We usually suggest retreatment first if possible. It is less invasive and treats the whole canal system from top to bottom. But an apicoectomy becomes the better option in certain cases. For example, a patient from Barnet was referred for an infection on a front tooth with a strong, well fitting post and crown. Removing the post for retreatment could risk fracturing the root. In that case a 60 minute apicoectomy saved the tooth and the expensive crown.

After retreatment you may feel some tenderness or sensitivity for a few days. Over the counter pain relief like ibuprofen helps. Avoid chewing on the tooth until a permanent restoration is placed. We will give instructions, but you can usually return to normal activities the next day. Call during office hours if pain or swelling becomes severe.

Recovery after an apicoectomy is like minor oral surgery. Expect some swelling and bruising for 2 to 4 days, peaking around day two. We will provide a pain relief prescription and suggest ice packs. You’ll need a soft diet for a few days and a follow up in about a week to remove sutures. Call during office hours if you see signs of infection such as fever or increasing pain after day three. For emergencies outside hours, go to A&E or call 111.

The cost of saving a tooth depends on its complexity. Generally, a surgical apicoectomy may have a higher fee than a non-surgical retreatment, but this isn't always the case. A full diagnosis, including a 3D CBCT scan, is needed to provide an accurate quote. During your consultation at our Finchley practice, we will provide a complete, transparent breakdown of all costs involved with no hidden fees. As a private practice, we don't offer NHS treatment but we do accept patients with private dental insurance plans from providers like Max Bupa, Denplan, and Cigna.

To choose what fits, have a direct discussion with your clinician. Whether you work with us or another practice in North London, ask about why the first root canal failed, the expected success rate for retreatment versus an apicoectomy based on your 3D scan, whether a post makes retreatment risky, the total cost including final restoration, alternatives if neither works, and the clinician's experience with these procedures.