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The e-mémoires of the Académie Nationale de Chirurgie

Surgical Navigation in Implantology

CAMPAN P

Seance of wednesday 20 january 2021 (La chirurgie orale, l'ANC reçoit l'Académie Nationale de Chirurgie Dentaire)

DOI number : 10.26299/tvw6-mj80/emem.2019.1.005

Abstract

Three-dimensional positioning of implants is one of the determining factors of implants success in the short, medium and long term. This is guided by biological and prosthetic imperatives. Biologically, vascularization’s deficit must be taken into account. Indeed, the loss of teeth leads to loss of the vascularization, the peri-implant vascular is reduced. This must be compensated for a greater bone thickness and will limit peri-implant osteolysis and gingival recessions. Prosthetically, implant’s position must be compatible with the crown emergence profile. Enough space must be managed to obtain thick soft tissue.
There are several dynamic navigations or passive robotics systems. They offer two advantages, on one hand they permit implants’ planification, and on the other hand planification’s report in mouth. The presented system, appeared in 2015 is called X-Guide system, X-Nav Technology. The software has 2 components: one for planification and the other for surgery. It is much more precise than free hand implantation or classic surgical guide. Implants angulations may vary by several degrees, neck and apex positions may have differences of 2, 3 or 4 millimeters. This shift induces implant positions which are not in line with the prosthetic project and vascularization imperatives. It is as precise as stéréolithographics guides for fully or partially guided methods surgery.
Surgery navigation has the advantage to know with precision and in real time the drill position and orientation. The operating site is free. This enables control of surgical procedure, effectiveness of the irrigation and also verification by the surgeon and his assistant of the correct course of the intervention.