Am I a candidate for dental implants?
Most adults with a missing tooth can be evaluated for an implant, but candidacy is decided by examination rather than by a general rule. The assessment looks at bone volume and quality, gum health, the position of nerves and sinuses, general medical history, habits such as smoking or grinding, and what the finished tooth needs to do.
The short version
There is no age limit, and no single condition disqualifies everyone who has it. The honest answer to whether you are a candidate is that it depends on findings that cannot be established without an examination and imaging. What follows is what those findings are, so the appointment is easier to follow.
What is examined
Bone comes first. An implant needs enough bone in three dimensions to be surrounded on all sides, and enough density to hold while it integrates. Where bone is insufficient, grafting is sometimes possible, which adds time and another decision point. The position of the nerve in the lower jaw and of the sinuses above the upper back teeth sets hard limits on where an implant can go, and cone beam 3D imaging is the normal way to measure them.
Gum health matters as much. Active periodontal disease is treated before implants are placed, because the tissue around an implant is susceptible to a similar inflammatory process.
Medical and habit factors
Uncontrolled diabetes, some medications that affect bone metabolism, head and neck radiotherapy and heavy smoking all raise the risk of an implant failing to integrate or failing later. Most are a reason for caution and discussion rather than an automatic refusal, and several are modifiable. Grinding places heavy load on the restoration, which affects the design and often adds a night guard to the plan.
The question behind the question
Patients usually ask about candidacy when what they want to know is whether an implant is the right choice compared with a bridge, a partial denture, or leaving the space alone. Those alternatives deserve a genuine comparison. A bridge involves preparing the neighboring teeth. A partial denture is removable and costs less. An implant does not involve the adjacent teeth but takes longer and requires surgery. None of them is beyond needing attention at some point.
How to find out
A consultation with an examination and appropriate imaging is the only reliable way to get an answer. It is reasonable to expect a plan that states what was measured and why the recommendation follows from it.