Accuracy of dental implant placement with a robotic system in partially edentulous patients: A prospective, single-arm clinical trial

Objectives: This clinical study aimed to assess the accuracy of implant positions using a robotic system in partially edentulous patients. Materials and Methods: Twenty--eight partially edentulous patients received 31 implants using the robotic system. Deviations between the planned and placed implants were calculated after surgery. The deviations were compared with objective performance goals (OPGs) from reported studies of fully guided static computer--assisted implant surgery (CAIS) and dynamic CAIS. A multiple linear regression analysis was performed to investigate the possible effects of the type and side of the arch, implant location, and implant dimensions on the deviations. Results: The evaluation of 31 implants resulted in a mean angle deviation of 2.81 +/- 1.13 degrees (95% confidence interval (CI): 2.40--3.23 degrees), while the 3D deviations at the implant shoulder and apex were 0.53 +/- 0.23 mm (95% CI 0.45--0.62 mm) and 0.53 +/- 0.24 mm (95% CI 0.44--0.61 mm), respectively. The upper limits of the 95% CI of 3D deviations were lower than those of the corresponding OPGs; however, the angle deviation was similar to that of the OPG. No statistically significant differences were found for the type and side of the arch, implant location, and implant dimensions to the deviations (p >.05). Conclusions: The robotic system appears to achieve higher accuracy in implant positions than static and dynamic CAIS in partially edentulous patients (Chinese Clinical Trial Registry ChiCTR2300067587).