Accuracy of navigation-guided socket drilling before implant installation compared to the conventional free-hand method in a synthetic edentulous lower jaw model

摘要: In this study, the three-dimensional (3D) accuracy of navigation-guided (NG) socket drilling before implant installation was compared to conventional free-hand (CF) method in a synthetic edentulous lower jaw model. The drillings were performed by two surgeons with different years working experience. inter-individual outcome assessed. NG using an optical computerized tomography (CT)-based navigation system. CF surgical template. coordinates drilled sockets determined on basis CT scans. A total n=224 evaluated. Inter-individual differences terms surgeons' work experience without statistical significance. mean deviation (n=112) vestibulo-oral and mesio-distal direction 11.2+/-5.6 degrees (range: 4.1-25.3 ). With respect (n=112), 4.2+/-1.8 2.3-11.5). distance mandibular canal 1.1+/-0.6 mm 0.1-2.3 mm) for CF-drilled 0.7+/-0.5 0.1-1.8 sockets. between methods highly significant (P<0.01). potential benefit from image-data-based surgery is discussed against background cost-effectiveness.