This technique makes it possible to rehabilitate entire arches and edentulous areas with fixed restorations, even when no healthy teeth are left in the arch.
Alternatives are traditional fixed dentures which, when possible, entail grinding teeth adjacent to the edentulous area, and removable dentures.
A new procedure called All on 4 has been recently proposed for the treatment of edentulous patients. The procedure involves the insertion of four implants of which the two distals are angled at about 30°. This slanting allows to bypass limiting anatomical structures such as the mental foramen in the lower jaw and the anterior wall of the maxillary sinus in the upper jaw and to have the shoulder implant in the 2°premolar/1°molar area.
This strategy allows the construction of a temporary prosthesis immediate loading using pre-fabricated components and acrylic resin, drastically reducing the time and cost of treatment.
With this method it is possible to propose to edentulous patients immediate fixed type prosthetic solutions, both for the lower and upper jaws, with reduced treatment times and costs.
This image shows implant distribution with the All on 4 technique in the lower jaw.
The flapless technique entails placing implants without raising a surgical flap. This procedure can be planned using various methods, the most innovative of which is at present a computerized processing of the patient’s CAT image.
The procedure is planned using a computer, by virtually placing implants in the patient’s bone; a customized surgical template then guides the dentist in correctly placing the implants in the patient’s mouth.
This procedure has the important advantage of being minimally invasive and is best indicated for fully edentulous patients who wear a removable denture. The post-op discomfort is basically nil and the time needed to perform the surgery is drastically reduced.
And yet, this technique can be used only in selected clinical cases, because closed surgery means that the various techniques for tissue augmentation are almost entirely hindered.
In the picture above you can see a surgical template. This tool allows the insertion of implants in the ideal position with a minimally invasive approach dramatically reducing surgical trauma and time.
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