SERVICE IN ORTHOGNATHIC SURGERY
This solution is an online, on demand, service in orthognathic surgery planning. It simply runs in a web browser, needs a short learning time and focuses on the essential. It is based on Delaire's principles allowing to define in space the patient's ideal facial architecture Synchronisation of the 2D and 3D datas are purposely limited to the necessary minimum. The occlusion can be finely set on physical models and the generated splint be controled on a mechanical articulator. Beside the mandible first approach described here, Lefort I first and segmented lefort I options are available.
Surgical planning softwares run on high end computers and need a long and tedious setup of the cases : cleaning of the dicom images, generation of the 3D radiological volumes, synchronisation of the dental STL models with these volumes, synchronisation of the 2D and 3D pictures, virtual simulation of the osseous osteotomies, virtual repositionning of the segmented jaws, etc... This approach can be heavily time consuming and not necessarily useful / precise in the absence of osseous cutting guides. Beside this,is there any advantage to perform the osteotomies twice ? First in a computer, then again in the operating room where the jaws, which don't know anything about virtual surgery, won't necessarily split where simulated ? Is presented an enhanced virtual articulator running online as a service that simplifies the planning process by using merged dental 3D models in a calibrated virtual space This service allows, with the minimum of datas, to easily and quickly, get the 3D printed surgical splint by delegating some or all of the planning stages
by N. NIMESKERN, m.d. (*) , A. GLEIZAL m.d., phD (*), F. LAMIELLE dental technician (**), H. KARRACH computer scientist (***)
(*) Service de chirurgie maxillo faciale Hôpitaux Nord 103 grande rue de la Croix Rousse 69004 LYON FRANCE (**) Orthec dental, F. LAMIELLE, Bergholtz FR (***) ONE ORTHO Parc Inopolis, 206 route de Vourles, 69230 Saint Genis Laval & GLOBAL D, 118 av Marcel Merieux, Brignais FR