RESUMEN
PURPOSE: To quantify the clinical accuracy of a robotically assisted implant guidance system in partially edentulous patients without the use of postoperative cone-beam radiography. MATERIALS AND METHODS: A total of 10 implants (7 patients) were placed in partially edentulous patients utilizing robotically assisted implant guidance system. Following the implant placement a intraoral scan was performed to register the implant position after attaching a scan body. The virtual plan and the postoperative intraoral scan with the scan bodies were exported as STL files, superimposed and discrepancies were analyzed using Geomagic Control X software. Positional deviations were measured between the midpoint of the platform and apex of the planned and achieved implant positions. RESULTS: Seven of the 10 samples in this study were defined as fully robotically dynamically guided, while 3 were partially robotically guided. For the fully robotic dynamically guided group the mean deviation at the midpoint of the restorative platform of the implant, the apex of the implant, the top of the scanbody, and the mean angular deviation were 1.31mm (SDï±0.46mm), 1.58mm (SDï±0.61mm), 1.11mm (SDï±0.57mm), and 2.34 degrees (SDï±1.71°), respectively. While for the partially robotic dynamically guided cases it was 1.31mm (SDï±0.49mm), 1.45mm (SDï±0.3mm), 1.74mm (SDï±0.47mm), and 3.75 degrees (SDï±2.53°). Eight out of the 10 implants (irrespective of full or partial guidance) showed a buccal displacement. CONCLUSION: Robotic surgery offers a level of accuracy similar to fully guided implant placement, without the need for a physical template, and allowing for changes in the surgical plan at any time. The analytical method described in this study is an effective and radiation free quality control tool that can be used in implant dentistry as well as in other areas of dental research dentistry.
