Dental implants are one of the most reliable procedures in modern dentistry. Across large studies tracking thousands of patients, implants have a survival rate of about 98.5% at five years and 96.8% at ten years. Even at 15 years, roughly 94% of implants are still functioning. These numbers hold up across age groups, jaw locations, and many common health conditions, making implants a predictable long-term solution for missing teeth.
What the Long-Term Numbers Look Like
A cohort study tracking over 10,800 implants in more than 4,200 patients for up to 22 years provides some of the clearest data available. At the individual implant level, 98.9% survived to three years, 98.5% to five years, 96.8% to ten years, and 94.0% to fifteen years. When measured at the patient level (meaning at least one implant in a given patient was still working), the numbers were slightly lower: 96.7% at five years and 92.5% at ten years. The gap exists because some patients receive multiple implants, and losing even one counts against the patient-level statistic.
A separate retrospective analysis of over 50,000 implants found a 98.6% survival rate over an average follow-up of nearly seven years. Whether implants were placed immediately after a tooth extraction or into fully healed bone made almost no difference: 98.4% versus 98.6%.
What Causes Implants to Fail
Implant failures generally fall into two categories based on timing. Early failures happen within the first few months, before the implant has fully fused with the jawbone. The main culprits are a lack of initial stability when the implant is placed, surgical trauma to the surrounding bone, and infection at the surgical site. These failures are relatively rare and typically identified quickly.
Late failures occur after the implant has been in use, sometimes years later. The two primary drivers are excessive force on the implant (from grinding, clenching, or a misaligned bite) and peri-implantitis, an inflammatory condition that destroys the bone supporting the implant. In a ten-year prospective study of 374 implants, 7% showed signs of peri-implantitis, defined as significant bone loss combined with bleeding around the implant. Despite that, only one implant in the entire study was actually lost, and it failed early due to the bone never integrating properly. So while peri-implantitis is common enough to watch for, it doesn’t always lead to implant loss if caught and managed.
How Smoking Affects Your Odds
Smoking is the single largest modifiable risk factor for implant failure. A systematic review and meta-analysis found that implants placed in smokers have a 140% higher risk of failure compared to those in non-smokers. Put another way, the odds of failure are about 2.4 times greater if you smoke. The mechanism is straightforward: smoking restricts blood flow to the gums and bone, slowing healing after surgery and weakening the long-term bond between the implant and jawbone. If you’re considering implants and currently smoke, quitting before the procedure meaningfully improves your chances.
Diabetes and Other Health Conditions
Type 2 diabetes is one of the most common health concerns patients raise before getting implants, and the data is reassuring for most people. When blood sugar is well controlled (typically measured by an HbA1c below 8%), implant survival rates range from 96.1% to 97.3% at one year and 87.3% to 96.1% at five years, comparable to people without diabetes.
The picture changes with poorly controlled diabetes. While even HbA1c levels below 10% don’t appear to dramatically compromise whether the implant survives, higher blood sugar levels are associated with more bone loss around the implant and deeper pockets of inflammation in a dose-dependent pattern. The higher your blood sugar, the more bone deterioration you can expect over time. Keeping HbA1c below 7% gives the best outcomes for both implant survival and the health of the surrounding tissue.
Age Is Not a Barrier
One of the more surprising findings in recent research is that older adults do just as well with implants as younger patients. A systematic review and meta-analysis covering nearly 3,900 implants found that patients over 75 actually had significantly higher five-year survival rates (96.8%) compared to the 65-to-75 age group (92.1%). The older group did accumulate more plaque and bleeding around their implants, but the bone supporting the implants remained just as stable. Age alone is not a reason to avoid the procedure.
One practical note for older patients who use implant-supported dentures: how the denture connects to the implants matters. Implants linked together with a connecting bar showed 5.6 times higher survival rates than those using individual snap-on attachments in patients over 65.
When Bone Grafting Is Needed
If you’ve been told you need bone grafting before or during implant placement, you might worry that adds risk. It does lower the numbers slightly, but the procedure is still highly successful. Across multiple studies, implants placed in bone-grafted sites had success rates ranging from about 84% to 97%, with most studies reporting above 84%. The variation depends on factors like how much bone was rebuilt, where the graft came from, and whether the implant was placed at the same time as the graft or after the graft had healed.
Implants placed in a separate surgery after the graft has healed tend to perform somewhat better than those placed simultaneously with the grafting procedure. In one study following 184 implants in grafted bone for at least three years after they were put into function, the success rate was 97%, nearly identical to implants in native bone.
Upper Jaw Versus Lower Jaw
The upper jaw (maxilla) has traditionally been considered more challenging for implants because the bone is softer and less dense than the lower jaw. In practice, the difference is minimal. A retrospective study of 158 posterior implants found no statistically significant difference between the two locations: the upper jaw had a 95.1% survival rate and the lower jaw 93.4%. Overall success in that study was 98.1%. Where in your mouth the implant goes should not be a major source of concern.
How Patients Feel About Their Implants
Clinical survival rates tell you whether the implant is still in the bone. Patient satisfaction tells you whether it was worth it. A five-year follow-up study of anterior implants (the visible front teeth) found that 86.2% of patients reported being strongly satisfied with their results, while another 12.4% were mostly satisfied. Only 1.4% expressed any dissatisfaction. The average satisfaction score was 92.8 out of 100.
Breaking it down by specific outcomes, 100% of patients were satisfied with how their speech sounded. For chewing comfort, 90.5% were strongly satisfied and another 8.2% experienced only minor restrictions. Prosthetic stability was rated “very stable” by 87.1% of patients. Esthetics, often the biggest concern for front teeth, earned strong satisfaction from 85% of patients, with another 13% mostly satisfied. These are front-of-mouth implants where cosmetic expectations are highest, so these numbers represent something close to a worst-case scenario for satisfaction.