Dental Implants are supposed to have long-term benefits. Generally, and on an average, they are expected to last more than 20 years. An interesting fact is that the very first patient who had dental implants was back in 1965. It’s been 47 years but that patient still has dental implants working. It can really last a lifetime. But there are factors that determine that like location of implants or whether or not it’s placed on natural or grafted bone. Also, if the patient is a smoker, it decreases the rate of success.