How do I know if my apicoectomy worked?
Cited to 4 sources. Reviewed 2026-08-25.
Feeling better is a good early sign, but success after an apicoectomy is judged on X-rays, not symptoms. Your endodontist looks for the dark area around the root tip shrinking and filling in with new bone, usually assessed at a follow-up around one year. Pooled research on modern endodontic microsurgery reports success in roughly 80 to 90 percent of cases, with rates somewhat lower at longer follow-up.
- Main healing checkpoint
- X-ray around 1 year
- Bone fill begins
- Over the following months
- Reported success
- Roughly 80 to 90 percent
- Symptoms alone
- Not proof of healing
What to expect, step by step
Surgical soreness and swelling fading. The gum incision closes. This says the wound is healing, not that the infection is resolved.
What to do: Attend the suture removal or healing check visit. Report anything that is getting worse rather than better.
The original symptoms that led to surgery, such as tenderness to biting, a gum bump or a dull ache, should be gone or clearly fading. Bone has started to regenerate but too little to see clearly.
What to do: Get the permanent restoration finished if the tooth needs one. Go back if any old symptom returns.
This is where the answer arrives. On a follow-up radiograph the dark radiolucent area around the resected root end should be visibly smaller and filling in with bone.
What to do: Keep the one year follow-up appointment even though you feel completely fine. This is the visit the whole judgment rests on.
Sites that healed usually stay healed, though research following cases for five or more years finds a small percentage of early successes that later fail.
What to do: Mention the treated tooth at routine dental checkups so it stays on the radar, and keep up regular X-rays as your dentist recommends.
Why the X-ray, not how you feel, is the verdict
The point of an apicoectomy is to clear infection at the root tip and let the jawbone that the infection destroyed grow back. The American Association of Endodontists describes the bone healing around the end of the root over the months that follow. That process is silent. You will not feel bone filling in, and you will not feel it failing to.
So symptoms and healing can disconnect in both directions. A tooth can feel perfect while the radiolucency has not shrunk at all. A tooth can also stay mildly tender to pressure for months while the X-ray shows excellent bone fill, because the surgical site itself is still remodeling.
Endodontists formally grade the follow-up film into categories such as complete healing, incomplete healing, uncertain healing and unsatisfactory healing. Incomplete or uncertain is not automatically failure; some of those cases are still moving in the right direction and get re-checked later.
Good signs and worrying signs
Between now and your follow-up X-ray, this is the practical version of what to watch.
| Sign | What it suggests |
|---|---|
| Surgical soreness fading week over week | Normal surgical healing |
| The old biting tenderness gone by a month or two | Encouraging, the likely source of the problem was addressed |
| A gum bump or draining spot that disappeared and stayed gone | Encouraging |
| Mild tenderness on pressing the gum over the site at 6 weeks | Common while the site remodels, mention it but not alarming on its own |
| The old symptoms returning after having settled | Report promptly, this needs a look |
| A gum bump or drainage that comes back | Report promptly, this suggests persistent infection |
| Swelling returning weeks or months later | Report promptly |
| The tooth becoming loose, or newly painful to bite | Report promptly, could indicate a root fracture |
What the success numbers actually say
Modern apicoectomy done as endodontic microsurgery, meaning with an operating microscope, ultrasonic instruments and a root end filling, performs well. A systematic review and meta-analysis of endodontic microsurgery outcomes reported pooled success in the high 80s to low 90s percent range in trial settings, and somewhat lower figures in prospective clinical studies over longer follow-up.
Large real world data tells a slightly more sober story. A study mining an insurance database for three year outcomes after apicoectomy found a cumulative tooth survival rate around 82 percent, varying by tooth type and patient age.
Both are useful. The trial numbers show what the procedure can do; the database numbers show what happens across all providers and all patients. Either way, the odds are good, and the alternative to a successful apicoectomy is usually extraction followed by an implant, bridge or partial denture.
If it did not work
A failed apicoectomy is not usually an emergency and it is not the end of the tooth's options. Persistent or returning infection may be re-evaluated with a cone beam CT to look for a missed canal, a vertical root fracture, or a source of infection that was not addressed the first time.
Depending on what the scan shows, options can include repeat surgery, non-surgical retreatment of the root canal, or extraction with a replacement. Your endodontist will make that call based on how much sound root and bone remain. What you should not do is wait out returning symptoms, since a spreading infection is a separate and more urgent problem.
Call your dentist or oral surgeon if
- A pimple-like bump on the gum near the tooth that returns or never fully went away
- Swelling that comes back weeks or months after surgery
- Return of the pain or biting tenderness that led you to surgery in the first place
- The tooth becoming loose or feeling different in your bite
- A persistent bad taste or drainage near the surgical site
- Fever of 100.4 F or higher, or facial swelling
- Rapidly spreading swelling, difficulty swallowing or breathing (seek emergency care immediately)
Related questions
How long after an apicoectomy do they take an X-ray?
Practices vary, but a follow-up radiograph around six to twelve months is the standard checkpoint, because that is when bone fill has progressed enough to judge. Some endodontists also take a short term film at the healing check.
What is the success rate of an apicoectomy?
Pooled research on modern endodontic microsurgery reports success in roughly 80 to 90 percent of cases, with rates trending lower at follow-up beyond five years. Real world insurance data on three year tooth survival came in around 82 percent.
My tooth still hurts a bit after two months. Did it fail?
Not necessarily. Mild tenderness over a remodeling surgical site can linger. The pattern is what matters: improving slowly is normal, unchanged or worsening at two months should be evaluated.
Can an apicoectomy be redone if it fails?
Sometimes. Repeat surgery, non-surgical retreatment, or extraction with a replacement are the usual options, and the choice depends on why it failed. A cone beam CT is often used to find out.
Sources
- Endodontic Surgery (American Association of Endodontists)
- Long-Term Prognosis of Endodontic Microsurgery: A Systematic Review and Meta-Analysis (PMC (Journal of Clinical Medicine))
- Three-year outcomes of apicectomy (apicoectomy): Mining an insurance database (PubMed (Journal of Endodontics))
- A One-Year Radiographic Healing Assessment after Endodontic Microsurgery Using Cone-Beam Computed Tomographic Scans (PMC (Journal of Endodontics))
Reviewed against the sources above on 2026-08-25. General information only, not dental advice. Your own provider's aftercare instructions come first.
Keep reading
Most people are back to normal activities the day after an apicoectomy. Swelling peaks around 48 to 72 hours, stitches usually come out within the first week, and the gum incision has closed over by about 2 weeks. The bone around the trimmed root end heals much more slowly, filling in over several months, which is why your endodontist checks it with follow-up X-rays rather than asking how you feel.
Numbness for a few hours after an apicoectomy is normal and is simply the local anesthetic wearing off. Numbness or tingling in the lip or chin that is still there the next day is not typical and should be reported to your endodontist, though it is uncommon and in most reported cases it is temporary. The risk is highest for surgery on lower back teeth, where the mental nerve and mandibular canal sit close to the root tips.
Yes. The AAE states that a treated tooth can heal improperly and become painful or diseased months or even years after treatment. It happens when bacteria get back into the canal system, usually through new decay, a leaking or broken restoration, a delayed crown, or a canal that was too narrow or curved to be fully cleaned the first time. Most of these teeth can still be saved with retreatment or endodontic surgery rather than extraction.
Pain that only happens when you bite usually comes from one of two things: the filling sits a fraction too high so that tooth takes the whole bite, or the periodontal ligament around the root is still inflamed from treatment. The ligament version fades over three to five days. The high filling version does not fade, because every bite re injures it, and it is corrected in a couple of minutes with a drill and articulating paper.