Who Is a Good Candidate for Dental Implants?
Quick answer: Most healthy adults who are missing one or more teeth are good candidates for dental implants. The key requirements are a fully grown jaw, enough healthy bone (or the ability to have a bone graft), healthy gums and general health that allows normal healing. Conditions such as diabetes, smoking or osteoporosis do not automatically rule implants out, but they need to be controlled and planned for.
What makes a good dental implant candidate?
A dentist looks at four main areas when deciding whether implants are suitable:
| Factor | Ideal situation | If it is not ideal |
|---|---|---|
| Jawbone | Enough height and width to hold the implant | Bone graft or sinus lift, or shorter or narrower implants |
| Gums | No active gum disease | Gum treatment first, then reassessment |
| General health | Healthy, or chronic conditions well controlled | Medical review and adjusted planning |
| Habits | Non-smoker, good daily cleaning | Stop or reduce smoking, improve hygiene |
Few people tick every box perfectly. In practice, the question is less "Am I perfect?" and more "Can my risks be reduced to an acceptable level?"
Age: is there a minimum or maximum?
Minimum age: Implants are normally placed only once the jaw has stopped growing. This is usually around the late teens for girls and around 18–21 for boys. Placing an implant earlier can leave it sitting too high as surrounding teeth continue to move.
Maximum age: There is no upper age limit. Many people in their 70s and 80s have implants successfully. What matters is overall health, bone quality and the ability to keep the area clean. In Korea, adults aged 65 and over enrolled in national health insurance can receive up to two covered implants in their lifetime at a reduced copay.
Bone and gum health
Bone volume
After a tooth is lost, the bone in that area slowly shrinks. The longer a gap has been left, the more bone may have been lost. A 3D CBCT scan shows exactly how much remains.
If bone is limited, options include:
- Bone grafting to rebuild width or height
- Sinus lift to add bone in the upper back jaw
- Shorter or narrower implants where appropriate
- Angled implants, as used in some full-arch treatments
Gum health
Active gum disease (periodontitis) is one of the main risks for later implant problems. It should be treated and brought under control before implant surgery. People with a history of gum disease can still have implants, but they need closer follow-up.
Medical conditions that need careful planning
Many medical conditions are compatible with implants when they are well managed. Your dentist may ask for recent test results or speak with your doctor.
- Diabetes: Well-controlled diabetes is generally compatible with implants. Poorly controlled blood sugar slows healing and raises infection risk.
- High blood pressure: Usually fine when controlled. Blood pressure is often checked on the day of surgery.
- Heart conditions and blood thinners: Many patients can continue their medication; the dentist plans bleeding control. Never stop a blood thinner without your doctor's advice.
- Osteoporosis medication: Some drugs, particularly bisphosphonates and denosumab, can affect bone healing. The type, dose and duration matter, so tell your dentist exactly what you take.
- Radiation to the head and neck: Needs specialist assessment because it affects bone healing.
- Immune-suppressing treatment: Requires individual review.
- Pregnancy: Elective implant surgery is usually postponed until after pregnancy.
Smoking and other lifestyle factors
Smoking reduces blood flow to the gums and bone, which slows healing and increases the risk of implant failure and peri-implantitis. Smokers can still have implants, but the risks are higher. Dentists usually recommend stopping at least 1–2 weeks before surgery and for several weeks afterwards, and ideally quitting altogether.
Other factors that affect candidacy:
- Teeth grinding (bruxism): Can overload implants; a night guard is often recommended.
- Oral hygiene: Implants need daily cleaning just like natural teeth.
- Commitment to follow-up: Regular check-ups catch small problems early.
Who may not be a suitable dental implant candidate?
Implants may be postponed or not recommended when:
- The jaw is still growing
- Diabetes or another condition is poorly controlled
- There is active, untreated infection or gum disease
- High-dose bone medication is being used for cancer treatment
- The person cannot keep the area clean or attend follow-up
In these cases, a bridge or denture may be more suitable, either permanently or until the situation improves.
How to find out if you are a good candidate
- Book an examination with a dentist experienced in implants.
- Bring a list of your medications and medical conditions.
- Expect a 3D scan to assess bone and nerve positions.
- Ask about alternatives, such as bridges and dentures, and their pros and cons.
- Request a written plan that explains any grafting, the expected timeline and costs.
Frequently asked questions
Can I get implants if I have had gum disease?
Yes, in many cases, once the gum disease is treated and stable. You will need careful cleaning and regular maintenance visits.
Am I too old for dental implants?
Age alone is rarely a barrier. Overall health and bone condition matter more.
Can I get implants with diabetes?
Usually, if your blood sugar is well controlled. Your dentist may ask about your recent HbA1c results.
What if I do not have enough bone?
Bone grafting, a sinus lift or a different implant design can often make treatment possible.
This article is for general information and does not replace a personal examination. Treatment times and results vary from person to person.
