Abstract: Objective To verify the feasibility and accuracy of complex full dental arch implant treatment with the combination of an oral implant robot and a combined guide system. Methods A total of 6 implants were placed immediately after upper teeth extraction using an oral implant robot. The intraoral scan and CBCT data were reconstructed in the software, and the implant-retained denture was designed according to the principle of occlusal reconstruction. The implants, combined guide, and treatment scheme were planned with the restoration-driven implant concept. During the operation, the robot registration was performed, and the remaining teeth were extracted. The surgeon controlled the robot by a foot pedal, and the robot autonomously carried out the transalveolar sinus floor elevation at the 26 site and prepared the rest implant beds. The implants were placed, and the provisional fixed denture was fitted in position. A second CBCT was taken postoperatively to evaluate the accuracy with the previous planning data. Results A total of 6 implants were placed, with neck deviation of (0.65±0.22) mm, apical deviation of (0.57±0.19) mm, and angular deviation of 0.96°±0.24°. The patient had no postoperative complications and successfully adapted to the provisional implant-retained denture. Conclusion The use of the oral implant robot combined with the combined guide system to implement the full dental arch implant surgery can achieve high implant accuracy, avoid taking CBCT again during the operation, reduce the difficulty and time of the operation, and realize the restoration-driven immediate implant placement and immediate loading.

Key words: Implant dentistry, Robotics, Navigation surgery, Accuracy