Anyone who is in good health and has teeth missing is a suitable candidate for implant therapy.
Age is not a limitation to implant treatment except that under-21s are not usually treated due to growth considerations.
Patients with underlying medical conditions need to undergo a thorough medical examination with special attention paid to patients with conditions that affect the healing of bone and soft tissues.
There must be enough bone present to provide suitable anchorage for the implants. The implant surgeon can determine your suitability when he examines your mouth.
A full medical history check is mandatory as are x-rays and models of the jaws. A CT scan is sometimes required in special cases to provide a 3 dimensional image of the jaw bone. The surgeon can then advise you more fully about the suitability of implants and implant treatment options.