Full Arch Dental Implants

Replacing All Teeth in an Upper or Lower Jaw

Full arch dental implants are used when all or most of the teeth in an upper or lower jaw need to be replaced. Rather than replacing each tooth individually, a strategic number of implants are placed to support a complete set of replacement teeth.

This approach provides a fixed, stable restoration that is anchored to the jawbone, offering a different experience from traditional removable dentures. For patients who prefer a removable option with implant support, implant-supported dentures are an alternative worth exploring.

When Full Arch Implants Are Considered

Full arch implant treatment may be considered when a patient has lost most or all of their teeth in one or both jaws. Common causes of extensive tooth loss include:

• Widespread dental decay affecting most teeth
• Advanced periodontal (gum) disease
• Trauma or injury resulting in the loss of multiple teeth
• Long-term wear or deterioration of existing dental work

This treatment differs from traditional dentures in that it is anchored to implants placed in the jawbone rather than resting on the gum tissue.

How Full Arch Implants Work

Full arch implant treatment involves placing several implants at strategic positions within the jawbone. The terms "All-on-4" and "All-on-6" refer to the number of implants used to support the full arch prosthesis (four or six implants, respectively). The All-on-4 approach was described by Maló and colleagues in 2003 as an immediate-function concept for the fully edentulous lower jaw.

The specific number and placement of implants depends on the patient's bone availability, bone quality, and the distribution of bite forces. In some cases, implants may be angled to maximize contact with available bone and avoid areas where bone is insufficient.

After placement and a period of healing, a custom-designed prosthesis is attached to the implants, restoring the appearance and function of a complete set of teeth.

Comparison to Traditional Dentures

Traditional removable dentures rest on the gums and are held in place by suction or adhesives. Over time, changes in the jawbone can affect the fit of dentures, leading to movement, discomfort, or difficulty eating and speaking.

Full arch implants are anchored directly to the jawbone, providing greater stability and reducing the movement that is common with conventional dentures. This can improve comfort during eating and speaking and may help maintain jawbone structure over time. For a side-by-side comparison, see our page on implants vs bridges vs dentures.

Bone Planning and Preparation

A thorough evaluation of bone quality and volume is essential before full arch implant treatment. The assessment typically includes:

• Detailed imaging to evaluate bone density and structure
• Assessment of nerve positions and sinus proximity
• Analysis of bite forces and how they will be distributed
• Identification of any areas where bone grafting may be beneficial

In some cases, bone grafting or other preparatory procedures may be recommended to create adequate bone support for the implants.

Treatment Timeline

Full arch implant treatment typically involves several stages, including initial planning, implant placement, a healing period, and the attachment of the final prosthesis. The overall timeline can vary significantly depending on:

• Whether preparatory procedures such as bone grafting are needed
• The time required for the implants to integrate with the bone
• The complexity of the prosthesis design
• Individual healing responses

In some cases, a temporary prosthesis may be provided during the healing period so that the patient is not without teeth while waiting for the final restoration. For more detail on what to expect during recovery, see our healing and recovery timeline.

Longevity and Maintenance

Full arch dental implants are designed as a long-term solution. The implant fixtures, once successfully integrated with the jawbone, can last for many years with proper care. The prosthesis may require periodic adjustment or eventual replacement due to wear.

Ongoing maintenance includes:

• Daily oral hygiene practices adapted for implant-supported restorations
• Regular professional dental visits for cleaning and monitoring
• Periodic evaluation of the prosthesis for fit and wear
• Maintaining overall health to support long-term implant success

Is Full Arch Treatment Right for Everyone?

Full arch implant treatment is not appropriate for every patient. Suitability depends on a thorough evaluation of the individual's medical history, bone conditions, oral health, and treatment goals. Learn about the various types of dental implants available to find the approach that fits your situation.

Factors that may affect candidacy include uncontrolled systemic health conditions, insufficient bone that cannot be augmented, and certain lifestyle factors. To understand associated fees, review our breakdown of dental implant costs in Ontario.