Apicoectomy and endodontic surgery

A root canal treats the inside of the tooth, working down through the crown to clean and seal the entire canal system. An apicoectomy is surgery from the outside, through the gum, removing the tip of the root and the infected tissue around it and sealing just the cut end of the canal. It is used when the problem persists at the root tip and the canal cannot be adequately re-treated from above, often because a post or crown is in the way.

In practical terms it is often the final option for keeping the tooth, since it is usually considered after root canal treatment and sometimes retreatment have not resolved the problem. That said, it is a targeted procedure with a specific purpose instead of a desperate measure, and modern technique has improved substantially over older approaches. The honest comparison is against extraction and replacement, and that comparison should include cost, prognosis and timeline for both.

The procedure is carried out under local anesthetic, with sedation available, so it should not be painful at the time. Afterwards, swelling and bruising are expected and can be noticeable, especially for upper front teeth where it may extend to the lip and under the eye. Discomfort is generally managed with the specific instructions given and should reduce steadily over the first days instead of increasing.

Usually not, and this is one of the main reasons an apicoectomy may be chosen over conventional retreatment. Because access is through the gum, not through the tooth, an existing crown, post and core can normally be left completely undisturbed. That avoids both the cost of a new crown and the risk of root fracture that removing a cemented post can carry.

Soft tissue healing and suture removal generally occupy the first week or two, with swelling settling over that period. The bone defect where the infection was takes considerably longer to fill in, a matter of months, and that is monitored on follow-up radiographs instead of judged by how the tooth feels. A tooth can feel entirely comfortable while healing is still incomplete, which is why the review radiographs matter.

If infection persists, the usual reasons are a problem within the canal system that surgery could not address, or a vertical root fracture that was not identified beforehand. At that point extraction is generally the outcome, followed by a decision about replacement. This is precisely why careful assessment with CBCT beforehand is worthwhile: it improves the chance that surgery is the right procedure instead of an expensive step on the way to extraction.

Yes, where several adjacent teeth have persistent root-tip infection, they can sometimes be addressed through a single surgical flap in one appointment, not separate procedures, which reduces the total number of surgical episodes. Whether this is appropriate depends on the position and relationship of the affected teeth, which is assessed from the imaging at planning.

Where the tissue removed from around the root tip looks unusual, or where a cyst instead of straightforward infection is suspected, sending a sample for pathological examination confirms the diagnosis instead of assuming it. This is a routine precaution in specific situations, not a sign that something more serious is expected, and it is billed as its own separate item.

Some minor gum recession or a subtle scar at the surgical site can occur, and on a front tooth this is a genuine aesthetic consideration worth discussing before surgery instead of after. Careful flap design reduces this risk, and it is reasonable to ask specifically how the flap will be planned for a visible front tooth if appearance matters to you.

After the infected tissue and root tip are removed, the very end of the canal is prepared and a small filling of a biocompatible root-end material is placed to seal it from the surgical side, sealing off the space bacteria could otherwise use to re-enter. This is a different, additional seal from the original root canal filling higher up the tooth, which is why it can succeed even where the coronal seal has some history of leaking.

Yes, but the proximity of the nerve supplying the lip and chin to lower back tooth roots means this needs careful three-dimensional assessment beforehand, and the risk of temporary or, less commonly, lasting altered sensation should be discussed explicitly as part of consent for that specific tooth. This risk is one of the reasons CBCT imaging is standard before surgery in this region.

Both are legitimate options with genuinely case-dependent outcomes instead of one being universally more successful: modern apicoectomy technique using magnification and specific root-end materials has closed much of the historical gap with conventional retreatment. Which is more likely to succeed for your specific tooth depends on the anatomy, whether a post blocks retreatment access, and the specific cause of the persistent infection, which should be discussed for your case, not assumed from a general statistic.