Abstract: Objective The purpose of this study is to evaluate the accuracy of robotic technology in complete edentulous implant surgery, and to explore the influence of full-guidance versus partial-guidance on robotic implant accuracy. Methods From April 2022 to April 2023, there were 38 implants in 5 complete edentulous patients who underwent robotic implant surgery in the Fujian Medical University School and Hospital of Stomatology. The implant surgeries were completed with the assistance of the dental implant robot. The postoperative CBCT data were compared with the preoperative implant planning, and the deviations of implant neck, deviations of implant apex, and angular deviations of the implants were measured. All data were statistically analyzed by SPSS 26.0 software, and the measured values among the groups were compared by using independent sample t-test, with a significance level of α=0.05, and the difference was considered to be statistically significant at P< 0.05. Results The average deviation of implant neck of 38 implants was (1.20±0.76) mm, the average deviation of implant apex was (1.25±0.76) mm, and the average angular deviation was 2.94°±2.33°. Compared with the implant accuracy of the partial group and the full group, the deviation of implant neck of the partial group was (1.51±0.86) mm, the deviation of implant apex was (1.63±0.78) mm, and the angular deviation was 3.13°±2.71°, while the deviation of implant neck of the full group was (0.81±0.39) mm, the deviation of implant apex was (0.79±0.41) mm, and the angular deviation was 2.71°±1.82°. The full group displayed lower deviations at both the implant neck and apex compared to the partial group, and these differences were statistically significant. However, there was no significant difference in angular deviation between the groups. Conclusion Robotic technology demonstrates satisfactory accuracy for implant surgery in completely edentulous patients. Procedures entirely performed using robotic systems exhibit superior implant accuracy.

Key words: Dental implant, Robot, Edentulism, Accuracy