Implant-Supported Dentures

Improving Denture Stability with Implant Support

Implant-supported dentures combine traditional denture design with the stability provided by dental implants. Rather than resting on the gums alone, the denture is anchored to implants placed in the jawbone, significantly reducing movement and improving comfort.

This treatment option is often considered by patients who experience loose or uncomfortable traditional dentures and are seeking a more stable solution for replacing all of their teeth.

When Implant-Supported Dentures May Be Considered

Implant-supported dentures may be considered when a patient is missing all teeth in one or both jaws and traditional dentures do not provide sufficient stability or comfort. This situation can arise when:

• Conventional dentures move or slip during eating or speaking
• Bone changes over time have affected the fit of existing dentures
• The patient desires greater confidence and stability from their prosthesis
• Bone availability or patient preferences may make other implant solutions less suitable

Fixed vs Removable Options

Implant-supported dentures are available in both removable and fixed designs, each with distinct characteristics:

• Removable (overdenture). The patient can take the denture out for daily cleaning. It snaps onto the implants using a connecting mechanism and can be removed and reattached by the patient.
• Fixed. The denture is secured to the implants and can only be removed by a dental professional. It remains in place at all times and is cleaned in the mouth, similar to natural teeth.

The choice between fixed and removable options depends on several factors, including the patient's overall health, manual dexterity, hygiene preferences, and treatment goals. The dental professional will discuss which approach is most appropriate for each individual case.

How Implant-Supported Dentures Work

The treatment involves placing a number of implants into the jawbone to serve as anchor points for the denture. After a healing period during which the implants integrate with the bone, the denture is attached to the implants through a connecting mechanism.

For removable designs, the denture typically snaps onto attachments on the implants. For fixed designs, the denture is screwed or cemented onto the implant abutments. In both cases, the implants provide a stable foundation that prevents the denture from shifting during use.

Bone, Planning, and Preparation

Adequate bone volume and healthy gum tissue are essential for supporting the implants that will anchor the denture. A thorough evaluation is conducted before treatment to assess:

• Bone density and volume in the jaw
• The condition of the gum tissue
• The position of nerves and other anatomical structures
• Overall medical health and any conditions that may affect healing

In cases where the available bone is insufficient, bone grafting or other preparatory procedures may be recommended to create the necessary foundation for the implants.

Compared to Traditional Dentures

Traditional dentures rely entirely on the gums for support. Over time, the jawbone beneath the denture can change shape, affecting the fit and leading to increased movement, discomfort, and difficulty with eating and speaking.

Implant-supported dentures address many of these challenges by anchoring the prosthesis to the jawbone. Key differences include:

• Reduced movement during eating and speaking
• Improved stability and retention
• More even distribution of bite forces across the jaw
• Potential to help maintain jawbone structure over time
• Elimination or reduction of the need for denture adhesives

For the edentulous lower jaw specifically, the McGill consensus statement identified a two-implant overdenture, rather than a conventional denture, as the first-choice standard of care.

Longevity and Ongoing Care

Implant-supported dentures are designed for long-term use. The implant fixtures can last for many years with proper care, though the denture components may require periodic adjustment, repair, or replacement over time.

Ongoing care requirements include:

• Daily cleaning of the denture and the area around the implants
• Regular professional dental visits for monitoring and maintenance
• Periodic evaluation of the attachment mechanism and denture fit
• Replacement of worn components as needed

Is This Option Right for Everyone?

Implant-supported dentures are not suitable for every patient. Candidacy depends on an evaluation of bone availability, medical history, oral health status, and individual preferences. Some patients may have conditions that affect healing or limit the feasibility of implant placement.

A thorough consultation with a qualified dental professional is necessary to determine whether this treatment approach is appropriate and to discuss all available options.