Genauigkeit der navigierten implantatchirurgie mit dem robodent(r)-system auf der grundlage einer radiologischen untersuchung mittels digitaler volumentomographie (DVT)

The purpose of this study was to evaluate the accuracy of the Robodent system using Newtom 9000 DVT data. The authors created the dicom data of a resin reference model of a lower jaw with 12 drilling holes. After implant planning with the Robodent software, 12 drillings were made in each of the 4 test models, which were equal to the reference model. The deviation from the reference model was evaluated digitally using a Faro device. The middle deviation was 0.5 mm, and the standard deviation found was 0.23 m. The experiment contained all the aberrations of the navigated surgery, beginning with the radiography, the aberration of the digital data, the patient and the model registration, and the mechanical aberration caused by the surgeon, the bur and the drilling handpiece. It is shown that that DVT data and the Robodent system work together properly. This result is the basis for the surgeon and dentist to integrate the knowledge of the accuracy of the system into their treatment planning. Using these data, the surgical and prosthetic planning is more reliable and can be used to treat the patient with a high predictability.