Why Would Someone Need a Dental Implant?

A dental implant may be considered when a tooth is missing or can no longer be saved. Because implants replace missing tooth roots and can support different types of restorations, they may be used to replace a single tooth, several teeth, or provide added support for a denture.

Depending on a person’s needs, dental implants may support a single crown, an implant-supported bridge, an implant-supported denture, or an overdenture.

For appropriate candidates, implants may help improve chewing function, the appearance of the smile, and the stability of replacement teeth. They may also help some patients feel more confident when speaking or eating. Results vary, however, and an examination is needed to determine which treatment option is appropriate for each patient.

Who Is a Good Candidate for Dental Implants?

A good candidate for dental implants generally has one or more missing or non-restorable teeth, healthy or well-controlled gums, and enough jawbone to support an implant. If there is not enough bone, bone grafting may sometimes be considered before or during implant treatment.

Other factors that can support successful implant treatment include:

• Good daily oral hygiene
• Regular dental visits and professional cleanings
• Not smoking, or being willing to stop or reduce smoking
• Medical conditions that are well controlled
• The ability to heal normally after treatment
• A willingness to follow aftercare instructions and maintain the implant with brushing, flossing, and professional care
• An understanding that the implant process may take several months, depending on the treatment plan and healing

Age alone does not determine whether someone is a candidate for dental implants. Many adults of different ages may be considered for treatment based on their oral and overall health. Younger patients may need to wait until jaw growth and development are complete before an implant can be placed.

To determine candidacy, a dentist will examine the teeth and gums and review the patient’s health history. Dental X-rays and, when appropriate, a 3D scan may also be used to evaluate the jawbone and surrounding structures before recommending treatment.

Who May Not Be a Good Candidate?

Some conditions may require additional evaluation, treatment, or medical clearance before implant placement. Having one of these factors does not necessarily mean a patient can never receive dental implants. In many cases, the concern can be treated or managed before implant surgery is considered.

Factors that may affect implant candidacy include:

• Uncontrolled diabetes or another serious, uncontrolled medical condition
• Active gum disease or untreated dental infections
• Poor oral hygiene or difficulty maintaining daily oral care
• Heavy smoking, vaping, or other nicotine use
• Significant jawbone loss
• Certain immune, healing, or bone-related disorders
• Some medications that can affect bone healing or bone metabolism
• Recent or ongoing radiation treatment involving the jaw
• Difficulty attending follow-up visits or completing recommended care
• Active substance misuse that could interfere with treatment or healing
• Jaw growth that is not yet complete

These factors are considered because successful implant treatment depends on healthy tissues, adequate bone support, and the body’s ability to heal. For example, uncontrolled diabetes can contribute to delayed healing and infection risk, while smoking can negatively affect healing and long-term implant success.

Certain medications and a history of radiation treatment to the head or neck may also require additional assessment because they can affect bone metabolism or healing.

Some patients who are not ready for implants initially may become candidates after receiving appropriate care, such as gum disease treatment, bone grafting, treatment of an infection, improved oral hygiene, smoking cessation, medical clearance, or better control of an underlying health condition. Adequate bone can sometimes be created through grafting when needed.

Ultimately, implant candidacy should be determined individually after a dental examination and review of the patient’s oral and medical history.

How a Dentist Determines Candidacy

Dental implant candidacy cannot be confirmed based on symptoms or online information alone. A dentist needs to evaluate the patient’s mouth, health history, and individual treatment needs before determining whether implants are appropriate.

A typical implant evaluation may include:

• Review of dental and medical history
• Examination of the teeth and gums
• Evaluation of the bite
• Dental X-rays
• 3D imaging when additional detail is needed
• Assessment of available bone height and width
• Review of current medications
• Discussion of smoking, vaping, or other nicotine use
• Discussion of treatment goals and possible alternatives

Not every patient needs every type of test or image. The evaluation is tailored to the individual and helps the dentist determine whether there is enough healthy bone and gum tissue to support an implant and whether any health factors should be addressed before treatment.

What Happens If There Is Not Enough Bone?

After a tooth is lost, the jawbone in that area can gradually shrink because it is no longer supporting a tooth root. If there is not enough bone to support a dental implant, additional treatment may sometimes be recommended.

Depending on the location and amount of bone available, options may include:

• Socket preservation: Bone-grafting material may be placed after a tooth is removed to help preserve the shape of the area.
• Bone grafting: Grafting material may be added to build up an area where more bone support is needed.
• Sinus augmentation: In some cases involving the upper back jaw, the sinus area may be carefully augmented to create more room for bone and an implant.
• Ridge augmentation: A narrow or reduced jaw ridge may be rebuilt to improve the amount of bone available.

The purpose of these procedures is to create adequate support for an implant when needed. Bone grafting is not required for every dental implant patient. A dental examination and appropriate imaging can help determine whether enough bone is already present or whether an additional procedure should be considered.

Alternatives

Dental implants are not the only way to replace missing teeth. The right option depends on factors such as the number and location of missing teeth, the condition of the jawbone and nearby teeth, medical history, budget, and personal preferences.

Possible alternatives or related treatment options include:

• Traditional dental bridge: A fixed replacement tooth or teeth supported by the natural teeth next to the gap.
• Removable partial denture: A removable appliance used to replace several missing teeth while some natural teeth remain.
• Complete denture: A removable appliance that replaces all teeth in the upper jaw, lower jaw, or both.
• Implant-supported bridge: A bridge supported by dental implants rather than natural teeth.
• Implant-supported denture: A denture that attaches to implants for additional support and stability.
• Leaving the space untreated: In some situations, a dentist may discuss whether monitoring an open space is reasonable. However, leaving a missing tooth untreated can sometimes affect chewing, tooth position, or the bite over time.

There is no single tooth-replacement option that is best for every patient. A dentist can review the advantages, limitations, expected maintenance, and costs of each option to help determine which approach is most appropriate.

• A dental implant is a small post placed in the jawbone to support a replacement tooth, bridge, or denture.
• Dental implants may be considered for one or more missing teeth or for teeth that cannot be predictably restored.
• Good candidates generally have healthy or controlled gums, adequate bone, good oral hygiene, and overall health that supports normal healing.
• Factors such as uncontrolled health conditions, active gum disease, smoking or nicotine use, significant bone loss, or certain medications may require additional evaluation or treatment before implant placement.
• A professional dental examination and appropriate imaging are needed to determine whether dental implants are suitable for an individual patient.
• Dental implants are not the only option. Bridges, partial dentures, complete dentures, and other tooth-replacement approaches may also be appropriate depending on the patient’s needs.

This article is for general educational purposes and is not a substitute for an examination, diagnosis, or treatment recommendation from a licensed dentist.