Yes, dental implants can and should last for the lifetime of the patient. This is a result of their predictable nature, extremely low failure rate, and the osseointegration process that fuses the implant directly within the bone.
However, the restoration on top of your dental implant will gradually wear out and require updating from time to time. This would be the crown, bridge, or denture that’s attached to the implant abutment (the part that’s visible above your gums). Fortunately, you can still expect most of them to last 5, 10, 15, or even 20 years in some cases.
If you want your dental implants to last forever, be sure to brush and floss them daily, and schedule regular six-month checkups with your dentist.