Can a dental implant fail, and if mine does, what happens next?

What "failure" means, and what it does not

An implant tooth is three parts working together: the implant body placed in the jawbone, the abutment that connects to it, and the crown you see and chew with. Problems with the upper two parts are the ones patients notice most, and they are usually repairable. A crown that chips, a cemented crown that comes loose, or an abutment screw that works itself loose is a prosthetic complication, not a failed implant.

The implant itself has failed when it loses its anchorage in the bone: it becomes mobile, or so much supporting bone has been lost that it can no longer be kept. Clinicians often describe two patterns.

• Early failure. The implant never fuses with the bone (the process called osseointegration does not complete) in the first months after placement. It may feel loose or sore before or soon after the crown is attached.
• Late failure. An implant that fused and worked loses supporting bone over time, often through peri-implantitis, an inflammatory disease of the gum and bone around an implant. Whether heavy biting forces alone can cause an integrated implant to fail is less clear.

The distinction matters because the two patterns point to different causes and different next steps.

How often implants fail

A published long-term review reports high survival. A systematic review that pooled ten-year studies estimated that roughly 96 percent of implants were still in place at ten years, while cautioning that the quality of the underlying studies was mixed. Survival is not the same as freedom from complications: an implant can be "surviving" while the gum around it is inflamed or the crown has been repaired. No practice can promise you a personal success rate, because your risk depends on the factors below, and some of them cannot be predicted at all.

Common contributors, without blame

Most failures have more than one contributor, and some happen when everything was done well. Knowing the list helps you and your dentist look in the right places, not assign fault.

• Healing that did not go as planned. Some implants simply do not integrate, even in healthy bone with careful technique.
• Infection and gum disease. Peri-implantitis is driven by bacterial plaque, and the strongest evidence for risk points to a history of periodontitis, difficulty keeping the area clean, and missing regular maintenance visits after the implant was placed.
• Smoking and tobacco. Tobacco use can slow healing after implant surgery. Evidence tying smoking specifically to peri-implantitis is described as inconclusive in the current classification, so it is treated as a factor to discuss rather than a verdict.
• Diabetes and other medical conditions. Chronic illness such as diabetes may interfere with healing. This is one reason the medical history review is part of every reassessment.
• Grinding and overload. Bruxism (tooth grinding and clenching) is associated with more mechanical complications, such as loosened screws and fractured crowns; evidence that it causes the implant itself to fail is weaker. A night guard may be recommended for people who grind.
• Medications. Tell your dentist about everything you take, including over-the-counter products and supplements; the FDA advises that patients share all medications and medical conditions with their implant provider.
• Bone and soft tissue. Insufficient bone volume may mean a graft is needed before an implant can be placed again, and there is only limited evidence that a lack of firm gum tissue around an implant adds to the risk of peri-implantitis.
• Factors nobody can fully predict. Even after all of the above are reviewed, a share of failures has no clear explanation.

Signs worth reporting

Call the office if you notice any of the following around an implant. None of them proves failure, but all of them deserve a look.

• The implant tooth feels loose or moves when you press it or chew.
• Pain or tenderness on chewing that is new or getting worse.
• Bleeding when you brush, pus, or a bad taste from the area.
• Swelling or redness of the gum around the implant.
• A crown that keeps loosening after it has been tightened or recemented.
• Visible implant threads at the gum line, or a gum line that has pulled away from the crown.

When emergency care comes first

If swelling is spreading quickly into the face or neck, if facial swelling comes with fever, if you have any difficulty breathing or swallowing, or if bleeding will not stop, call 911 or go to the nearest emergency department first. The appointment request form is not the right route for these symptoms. Our guide on facial swelling with tooth pain explains why.

What the reassessment visit determines

A reassessment is an examination, not a judgment. It usually includes:

• A mobility check. Whether movement comes from the crown, the abutment screw, or the implant body itself. This single finding separates most prosthetic problems from implant problems.
• Probing around the implant. Measuring pocket depth and checking for bleeding or pus on gentle probing.
• X-rays compared with earlier ones. Peri-implantitis is diagnosed partly by bone loss beyond the small remodeling expected after placement, so comparison with the X-ray taken when the crown was fitted is valuable. If you have earlier X-rays from another office, bring them or ask that they be sent.
• A look at the bite and the prosthesis. Whether the crown is taking too much force, whether contacts with neighboring teeth are right, and whether the crown shape makes cleaning difficult.
• A review of health and habits. Changes in medical conditions, new medications, smoking, grinding, and how the area is being cleaned at home.

Depending on the findings, the diagnosis usually falls into one of four groups: a stable implant with a prosthetic problem, inflamed gum without bone loss (peri-implant mucositis), bone loss around an integrated implant (peri-implantitis), or an implant that has lost integration.

The pathway afterward

Treat and keep

Peri-implant mucositis can usually be reversed by removing plaque and improving cleaning at home, though the gum may take several weeks to settle. Early peri-implantitis is usually managed by cleaning the implant surface and making the crown easier to clean; in some cases surgery is discussed. Your dentist will explain which options apply. The implant stays, and maintenance visits become more frequent for a while.

Repair the prosthesis

A loose screw is tightened or replaced, a loose crown is recemented or remade, a chipped crown is repaired or replaced. If the bite or grinding contributed, the crown may be reshaped and a night guard discussed. The implant is unaffected.

Remove and plan again

An implant that is mobile or has lost most of its bone is removed. What follows depends on the site:

• Heal. The socket is allowed to fill in; your dentist will estimate how long that is likely to take at your site.
• Graft. If bone is insufficient after removal, graft material may be placed to rebuild volume before a new implant is considered.
• Re-implant. A new implant may be planned once the site is healthy and the contributing factors have been addressed as far as possible. Candidacy is reassessed as if from the start; our guide on who may be a good candidate describes what that involves.
• Choose an alternative. A fixed bridge anchored to neighboring teeth or a removable partial denture can replace the tooth without another implant. The trade-offs are the same ones covered in implant or bridge for one missing tooth.

What usually determines timing

How soon the next stage can begin depends on whether infection has cleared, how much bone remains, whether a graft needs time to mature, and whether a contributor such as smoking or uncontrolled blood sugar has changed. These are the questions your dentist should answer when proposing a date, and the honest answer is sometimes "we will know after the site heals."

Questions to ask, and what the next plan should list

• What exactly failed: the crown, the abutment, or the implant?
• What do you think contributed, and which of those can I change?
• What is the diagnosis in the terms above, and how does it compare with my earlier X-rays?
• If the implant stays, how will we know the treatment is working, and when will we re-check?
• If it is removed, what are my options for the gap, and what is the likely sequence?
• How will complications be handled this time, and what would each stage cost?

A written plan for the next stage should name the diagnosis, each proposed step in order, what is being done about the contributing factors, and the follow-up schedule. Our guide on what a written dental treatment plan should explain covers what to look for, and the implant cost guide shows how the component lines should be separated.

The next step

If an implant feels different, do not wait for it to settle on its own. Request an appointment or call (805) 565-5111 during office hours, and mention that the concern is about an existing implant so the team can plan the visit and ask you to bring or send earlier X-rays. Bring any records from the office that placed it. Our dental implant services page describes what the practice offers, including computer-guided placement and ceramic implant options.