What are All-on-4 techniques?

The term All-on-4 refers to the fact that «all» (all) teeth are supported «on four» (on four) or six dental implants. The four or six implants support a fixed prosthesis of 10 to 14 teeth, which is placed immediately, usually within 24 hours of the procedure.

When is the All-on-4 technique used?

This technique is NOT indicated for all patients, only for those who do not have bone in the posterior maxilla or mandible and do not wish to undergo bone regeneration procedures. In patients who have sufficient bone to place implants in the molar area, it is recommended.

Advantages of All-on-4 implants:

This all-on-four dental implant technique offers a series of advantages over conventional implants.

– Shorter treatment time until the final prosthesis.
– Simpler surgery than the conventional technique.
– Possibility of avoiding dental bone grafts.
– Dental implants are placed on the same day as tooth extractions, if necessary.
– Fixed teeth and smile on the same day, using a hybrid prosthesis from the very first moment.
– Fixed prosthesis, which you don’t have to put in and take out every day.

Disadvantages of All-on-4 implants:

– Angled posterior implants, which means that the prosthesis in the molar area has no support, as it is cantilevered. And this cantilever, with the passage of time and use, ends up breaking or splitting.
– As it is only a fixed prosthesis on 4 implants, if any of them were to fail, the patient would have to undergo a new dental implant placement surgery.
– The hybrid prostheses that are placed always have false pink gum, and this can accumulate food underneath it.

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