Dr. Matteo Danza
Prof A.C. CLOPD e Corso di Perfezionamento in Implantologia Clinica e Biomateriali
Università degli Studi G d’Annunzio – Chieti
Cattedra di Odontostomatologia II Dir. Prof S. Fanali
Via G. Carducci 83 - 65122 Pescara- Italy - Tel/fax +39 085 4225381
e-mail dama.t@tin.it
By now the computer is an integral part of the daily clinic-surgical-implantoprosthetic activity. Nowadays through the use of specific softwares it is possible to elaborate tomographic images for the anatomic and radiologic study of the oro-maxillo-facial sector in order to carry on a virtual planning of an implantology operation during which implants are ideally inserted in the three spatial dimensions.
Materials and methods
Simplant Software, installed on a common Pc allows the 3D displaying of Dentalscan digital datas, the graphic interation between them, the 3D planning of the implantoprosthetic treatment. Moreover it allows the volumentric displaying of anatomic structures which must be observed. Simplant imports from the radiologist workstation all the volumetric informations of the maxillary bone, achieved during the CAT scan, implemented bt other prosthetic informations coming from specific radio-opaque prostesis, built according to the respective protocol, worn by the patient during the acquisition. So all datas are transfered through a CD rom directly from the radiology workstation to the doctor 's PC. Trough a "post processing" reworking system, the software is able to rebuilt a virtual 3d model of maxillaries and change the exams displaying, according to the points of reference considered appropriate by the implantologist. The process goes on with a careful planning of the implantology operation which offers the possibility to place implants in ideal positions taking into account the precious possibilities deriving from the scanprosthesis, according to both biomechanics principles, which rule the implantoprosthesis construction, and the functional and aesthetic ones. The software includes a series a means which allows the subtle optimization of the implantar emergences according to the aesthetic and implantoprosthetic needs.
Results
The next step is represented by the Surgiguide costruction, through the importation of the project datas. The Surgiguide contains all the information we need to turn into surgical reality the considerations done in the previous planning phase. The Surgiguide is produced through a sophisticated prototypation system: the stereolithography, which inglobes in its own structure some titanium tubes 5mm of constant height, and calibrated diameter, with 0,2 mm of tolerance, consifering the diameter of the drills whose use has been planned.
Discussion and conclusions
The implantologist turns into clinic reality all the informations previously elaborated, simply placing in the right way the surgiguide on the patient's maxillary and guiding the drills according to the directions and the angulations which the tubes in the guide impose. The method is reported during this congress since it surely finds its elective indications when a surgeon wants to perform a surgical implantology operation with no trauma and minimun invasivity, affordable costs (5/6 sessions are sufficient) and above-all when the surgeon needs that full arches to work immediately without see the patient again for the sutures removal.