Full-mouth implant rehabilitation (all-on-4 / all-on-6 / all-onX)
Full-mouth implant rehabilitation is a comprehensive treatment designed to restore a complete dental arch when most or all teeth are missing, severely damaged, or cannot be predictably preserved. A fixed bridge is supported by several strategically positioned dental implants, using concepts commonly referred to as All-on-4, All-on-6, or All-on-X.
The objective is to restore chewing function, comfort, facial support, and a natural-looking smile with a stable, fixed reconstruction. The number and position of the implants are determined individually according to the available bone, anatomy, bite, aesthetic requirements, and design of the future bridge.
Careful pre-surgical digital planning is a central part of the treatment. Three-dimensional radiographic imaging, digital impressions, photographs, and facial and smile analysis may be combined to design the future teeth before surgery. Computer-assisted implant surgery is used to transfer this virtual plan to the clinical procedure, helping optimize implant positioning, surgical precision, and the design of the provisional and final reconstructions.
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Common questions about full-mouth implant rehabilitation
01
What are All-on-4, All-on-6, and All-on-X?
These terms describe a fixed full-arch bridge supported by several dental implants.
An All-on-4 reconstruction is generally supported by four implants, while an All-on-6 reconstruction uses six. All-on-X is a broader concept in which the number of implants is adapted to the patient’s anatomy, bone conditions, bite, and prosthetic requirements.
The objective is not simply to use a specific number of implants, but to achieve an appropriate implant distribution and a stable, functional, and maintainable reconstruction.
02
Who may benefit from full-mouth implant rehabilitation?
This treatment may be considered for patients who have lost most or all of their teeth, have severely damaged teeth with a poor prognosis, or experience significant difficulties with an unstable removable denture.
It may also be appropriate when extensive tooth loss results from advanced periodontal disease, decay, fractures, or severe wear.
Whenever possible, natural teeth with a favourable prognosis should be preserved. Full-arch rehabilitation is recommended only after a careful assessment of the remaining teeth and possible treatment alternatives.
03
Are the new teeth fixed or removable?
In an All-on-4, All-on-6, or All-on-X rehabilitation, the bridge is generally fixed to the implants with screws and is not removed by the patient.
This provides greater stability and comfort than a conventional removable denture. However, the bridge must still be cleaned carefully underneath and around the implants.
It can be professionally removed when maintenance, repair, or a detailed examination is required.
04
Can the teeth be removed and temporary teeth provided on the same day?
In selected cases, the remaining teeth can be extracted, the implants placed, and a fixed provisional bridge connected during the same appointment or shortly afterwards. This approach is known as immediate loading.
The provisional teeth restore appearance and basic function while the implants integrate with the bone. Their design also allows aesthetics, speech, comfort, hygiene, and bite to be evaluated before the final bridge is fabricated.
Immediate loading is not suitable for every patient. The decision depends on the available bone, implant stability, infection risk, bite forces, general health, and individual clinical risk factors.
05
How is the treatment planned and maintained?
Planning begins with a comprehensive evaluation of the teeth, gums, bone, bite, smile, facial characteristics, and general health. Photographs, digital impressions, and three-dimensional imaging may be combined to design the future teeth and determine the appropriate implant positions.
The provisional bridge allows the appearance, speech, bite, comfort, and facial support to be evaluated before the final reconstruction is completed.
Long-term success requires careful daily cleaning underneath the bridge and around the implants, together with regular professional maintenance. The implants, surrounding tissues, bite, screws, and prosthetic materials must be monitored over time.
