What is an apicoectomy?
An apicoectomy, or root-end resection, is minor surgery on a tooth that has had a root canal but still has infection at the root tip. Under local anaesthetic the gum is opened, the infected tissue and the last few millimetres of the root are removed, and the root end is sealed. It is a surgical option some cases are referred for. At Creative Arts in Dubai such teeth are assessed for retreatment first.
Who treats you here Dr. Marina Antoniuk Dentist · Dr. Julia General Dentist
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What does root-end surgery actually do?
A root canal cleans and seals the canal system from the top of the tooth. Most of the time that is enough for the bone around the root tip to heal. Sometimes it is not: an infection persists in the bone at the tip, visible on X-rays as a dark area that does not shrink, sometimes with a gum boil, tenderness or swelling.
An apicoectomy approaches the problem from the other end. Instead of going back in through the crown, the surgeon reaches the root tip through the gum and bone beside the tooth. The infected tissue around the tip is removed, the very end of the root, where complex side branches and many persistent bacteria sit, is cut away, and a small filling is placed to seal the end of the canal. The gum is then stitched back.
The American Association of Endodontists describes it as the most common type of endodontic surgery and as a microsurgical procedure, usually done with magnification. It is not a replacement for a root canal: the tooth must already have one, ideally of good quality, because surgery seals only the end of the root and cannot clean the canal above it.
Retreatment, apicoectomy or extraction: how do the options compare?
Each option suits different teeth. This is a general comparison; the right choice depends on the X-rays, the quality of the existing root canal, the crown and the bone.
| Option | What it involves | Usually suits | Trade-offs |
|---|---|---|---|
| Root canal retreatment | Removing the crown or filling and the old root filling, cleaning missed or poorly treated canals, and resealing from the top | Most failed root canals, especially with a missed canal, a short or leaking root filling, or a crown that needs replacing anyway | Often needs a new crown; more visits than a first root canal |
| Apicoectomy (root-end surgery) | Opening the gum beside the tooth, removing infected tissue and the root tip, and sealing the root end | A good root canal that still has infection at the tip, or a tooth where a post or new bridge makes going in from the top too risky | Minor surgery with a few days of swelling; does not clean the canal itself; access is harder near the sinus or the nerve in the lower jaw |
| Extraction and implant | Removing the tooth, letting the site heal, then placing an implant and crown | Teeth with a vertical root fracture, too little tooth to restore, or poor bone support | Loses the natural tooth; typically several months to complete; surgery for the implant |
| Extraction and bridge | Removing the tooth and replacing it with a bridge attached to the neighbouring teeth | When an implant is not suitable or not wanted and the neighbours need crowns anyway | Neighbouring teeth are prepared; cleaning under the bridge needs care |
| Extraction only | Removing the tooth and leaving the gap | Some back teeth where the gap does not affect chewing or neighbouring teeth | Neighbouring and opposing teeth can drift over time |
Our guides to root canal or extraction and root canal or implant go further into the long-term comparison.
When is an apicoectomy considered instead of retreatment?
In most failed root canals, the bacteria keeping the infection going are inside the canal: in a canal that was never found, in a root filling that is short or loose, or in leakage from a lost filling or crown. Retreatment addresses those causes directly, which is why it is usually the first option. Surgery alone would leave them in place.
Root-end surgery comes into the discussion in narrower situations:
- The existing root canal looks good on X-rays and CBCT, yet a lesion at the tip has not healed.
- Going in from the top is risky or impractical, for example a large post that could crack the root if removed, or a recent bridge or crown that would have to be destroyed.
- A canal cannot be negotiated because it is blocked by calcification or an earlier obstruction.
- The root needs to be seen directly, for example to look for a crack or to send tissue for examination.
- Retreatment has already been done to a good standard and infection persists.
It is usually not suitable when the root has a vertical fracture, when gum disease has destroyed the support around the tooth, or when too little tooth remains to restore.
What happens during an apicoectomy?
A general outline of the procedure as described by endodontic professional bodies. Details vary with the tooth and the surgeon.
Planning
X-rays and often a 3D CBCT scan show the root, the lesion and nearby structures such as the sinus and the nerve in the lower jaw.
Before surgeryLocal anaesthetic
The area is numbed. You feel pressure and movement but should not feel sharp pain.
StartAccess to the root tip
A small flap of gum is lifted and a window made in the bone over the tip of the root.
SurgeryClean, trim and seal
Infected tissue is removed, the last few millimetres of the root tip are cut away, and a small filling seals the end of the canal.
SurgeryStitches and review
The gum is stitched back. Stitches are usually checked or removed within about a week, and X-rays over the following months show whether the bone is filling in.
Days to months
What is recovery like after an apicoectomy?
According to the American Association of Endodontists, most people return to normal activities the next day and discomfort is generally mild. Swelling and sometimes bruising of the gum or face are common for a few days, peaking around the second or third day. Cold packs in the first day, soft food on the other side, gentle cleaning around the stitches and over-the-counter pain relief taken as directed on the pack usually keep it manageable. Our guide to swelling after oral surgery explains the normal pattern.
Healing of the bone is slower. The window in the bone and the area around the root tip fill in over months, which is why follow-up X-rays are part of the treatment. Outcomes depend on the tooth, the quality of the existing root filling, how well the root end can be sealed and the restoration above it, so ask the surgeon to explain the outlook for your specific tooth rather than relying on an average.
Risks to discuss beforehand include infection, a small change in the gum line on front teeth, involvement of the sinus for upper back teeth, temporary or rarely lasting numbness near the nerve for lower back teeth, and the possibility that the tooth still needs to be removed later.
Root canal tooth still hurting or showing infection? See how a failed root canal is reassessed and retreated under the microscope at Creative Arts in Dubai.
Root canal retreatmentWhat Creative Arts offers for a failed root canal
At Creative Arts, a tooth with a failed root canal is assessed by Dr. Marina Antoniuk or Dr. Julia, with X-rays and a CBCT scan where needed, and examined for missed canals, leakage and cracks. The options available here are retreatment under the microscope, and extraction followed by an implant or bridge. Apicoectomy is not listed among the clinic's services; if root-end surgery looks like the better choice for your tooth, your dentist will explain why and discuss referral. Ask whether it suits your tooth.
What should you ask before agreeing to root-end surgery?
Whoever proposes an apicoectomy, these questions help you judge whether it is the right step:
- Why is retreatment not the first option for this tooth? Is the existing root filling of good quality on X-ray and CBCT?
- Has a crack in the root been ruled out, as far as it can be before surgery?
- Is there enough tooth above the gum, and a sound crown, to keep the tooth for years once the root end heals?
- How close is the root tip to the sinus or the nerve, and what does that mean for the risks?
- Who will carry out the surgery, with what magnification, and what follow-up X-rays are planned?
- If the surgery does not work, what would the next step be, and how would an implant or bridge compare?
For background on root canals in general, see root canal myths and facts, and for how magnification is used in non-surgical treatment, microscope root canal treatment. If you are still deciding whether the tooth has a problem at all, signs you need a root canal describes the symptoms and tests.