Dental Implant Risks and Safety: An Honest Look at the Evidence
Medically reviewed by Dr. Sergio Calleja, DDS, MPH — Board-Certified Oral & Maxillofacial Surgeon · Last reviewed 2026-04-09
Dental implants are one of the most successful procedures in modern dentistry — published research reports success rates around 95% or higher — but no surgery is risk-free, and you deserve straight answers. The great majority of implants integrate and last for decades; the risks below are uncommon, and most are preventable or treatable.
Here are the risks that matter, what the evidence says about how often they occur, and what we specifically do to reduce each one.
Early Failure to Integrate
Occasionally an implant does not fuse to the bone in the first weeks and stays loose. Published studies put early failure in roughly the 1–5% range. When it happens, the implant is removed, the site is allowed to heal, and a new implant can usually be placed later with a good chance of success the second time.
How we reduce this risk3D CBCT planning confirms adequate bone before surgery, guided placement positions the implant precisely, and we review risk factors — like uncontrolled diabetes or smoking — that reduce integration, so they can be addressed in advance.
Infection and Peri-Implantitis
An implant can develop an infection of the gum and bone around it, called peri-implantitis — essentially gum disease around an implant. It is the leading cause of late implant problems; reviews report it in roughly 10–20% of implants over time, more often in smokers and people with a history of gum disease. Caught early it is treatable, but advanced cases can lead to bone loss and implant failure.
How we reduce this riskWe treat any existing gum disease before placing implants, teach implant-specific cleaning, and schedule regular maintenance checkups so inflammation is caught and reversed early — the single most effective way to protect an implant for life.
Nerve Injury (Lower Jaw)
In the lower jaw, a nerve that supplies feeling to the lip and chin runs through the bone. If an implant were placed too close to it, the result could be numbness or tingling of the lip and chin. This is uncommon — nerve complications occur in a small percentage of cases — and importantly, this nerve carries sensation only, never facial movement.
How we reduce this riskThe exact path of the nerve is mapped on your 3D CBCT scan, the implant is planned with a safety margin, and a surgical guide keeps placement within that plan. This kind of precise planning is a core reason to have a surgeon place your implants.
Sinus Complications (Upper Jaw)
In the upper back jaw, the sinus cavity sits close above the bone. Placing an implant here without enough bone height can irritate or perforate the sinus membrane, potentially causing a sinus infection. Reported complication rates for sinus involvement are low (a few percent), and issues are usually managed successfully.
How we reduce this riskThe sinus floor is measured precisely on the 3D scan, and a sinus lift adds bone height in advance when needed, so the implant is fully anchored in bone and kept clear of the sinus.
Damage to Adjacent Teeth or Structures
Very rarely, placing an implant too close to a neighboring tooth root can injure it. This is one of the least common complications.
How we reduce this riskPrecise 3D planning and guided placement map the position of neighboring roots and keep the implant safely spaced from them.
Long-Term Care: Protecting Your Implant for Life
An integrated implant does not get cavities, but the gum and bone around it can still get sick — that is peri-implantitis. The good news is that it is largely preventable. The same habits that protect natural teeth protect implants: thorough daily brushing and flossing (or a water flosser), and regular professional cleanings so any early inflammation is caught while it is still reversible.
One factor deserves special mention: smoking. Research consistently links smoking to higher implant failure and more peri-implantitis, with failure rates reported at roughly two to three times those of non-smokers. Cutting down or quitting — especially around the time of surgery and healing — measurably improves your odds. We will talk about this openly and supportively, not to lecture, but because it genuinely changes your result.
Call Us Right Away If You Notice
- The implant or crown feels loose or moves
- Increasing pain, swelling, redness, or warmth around the implant after the first few days
- Pus or a bad taste coming from the implant site
- Fever above 100.4°F (38°C)
- New numbness or tingling of the lip or chin that does not fade
- Persistent bleeding that does not stop with gentle pressure
Office: (301) 645-6911 (Waldorf) · (301) 863-8107 (California, MD). For emergencies, call 911.
Frequently Asked Questions
What is the failure rate of dental implants?
Low. Published studies report success rates around 95% or higher, meaning early failure (in the first weeks) affects roughly 1–5% of implants. Most of the remainder integrate and last for decades. When an implant does fail early, it can usually be replaced successfully after the site heals.
What is peri-implantitis, and can it be prevented?
Peri-implantitis is gum-disease-style inflammation and bone loss around an implant, and it is the main cause of late implant loss — reviews report it in roughly 10–20% of implants over time. It is largely preventable with good daily cleaning, not smoking, and regular maintenance visits that catch early inflammation while it is still reversible.
Can a dental implant damage a nerve?
It is uncommon, and it is specifically what careful planning guards against. A nerve in the lower jaw supplies feeling to the lip and chin; if an implant were placed too close, temporary or (rarely) lasting numbness could result. The nerve carries sensation only — never facial movement. Mapping the nerve on a 3D scan and using a surgical guide keeps the implant a safe distance away.
Does smoking affect dental implants?
Yes, significantly. Smoking impairs healing and is linked to failure rates roughly two to three times higher than in non-smokers, plus more peri-implantitis. Reducing or quitting around surgery and healing meaningfully improves your chances of long-term success.
What happens if an implant fails?
A failed implant is removed — usually a simple procedure since it is not fused in. The site is allowed to heal, sometimes with a bone graft, and in most cases a new implant can be placed later with a good chance of success. We will explain exactly why it failed so we can address the cause.
Have Questions About Dental Implants?
Dr. Calleja evaluates every case personally at the Waldorf and California, MD offices — consultations in English or Spanish.
This page is general patient education, not personal medical advice. Every patient's anatomy and health history are different — treatment details, risks, and recovery vary case by case and are reviewed with you during your consultation. For emergencies, call 911.