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Implants and Immediate Prostheses. “All on Four” System
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Based on the “Immediate function” cutting edge modality from Nobel Biocare, the “All on four” technique is excellent for the rehabilitation of edentulate maxillas (where all the teeth have been lost), given that it takes advantage of the inclination of the subsequent implants. This means that the insertion of 4 implants (or occasionally there may be 6 in the upper maxilla) facilitates the optimal prosthetic support for a fixed acrylic prosthesis which can be fully functional just a few hours after surgery.
The “All on four” system is ideal for implant treatments in cases in which the bone of the maxillas at posterior level is scant, as it takes advantage of the anterior section where the problem of bone availability is less, increasing the prosthetic support area and giving the posterior implants an inclination of some 30-45º. Without this new technique, a fixed screw prosthesis would perhaps be unthinkable without first resorting to Guided Bone Regeneration.
Case treated with All On Four
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