Background
SURGICAL COMPLICATIONS
The accuracy of implant placement including its position, angle, and depth within the jawbone is essential and would affect its long-term stability, survival and success rate [Computer-assisted dynamic navigation allows tracking the position of the drilling needle during the implant procedure, avoiding damage to adjacent important anatomical tissue and preventing surgical complications [The novel THETA robotic dental implant system, developed by Hangzhou Jianjia Robot Co. LTD, is a semi-automatic system, which could conduct positioning, drilling and implant placement according to control the integrated button (line setting button, teaching button) with an optical navigation system. All wrist joints of UR-3e manipulator can rotate 360 degrees, and the end joints can rotate infinitely. With force sensors, UR-3e manipulator can cooperate well with users in the same space through force position coupling control and handle high-precision tasks.At present, there are CBCT image errors, registration errors, positioning and marking device printing errors, and visual system errors in both dynamic navigation system and robotic dental implant system. Few studies comparing the accuracy of the two implant systems. The accuracy of the implant-assisted technique is evaluated mainly through model experiments and clinical trials. In this study, a phantom experimental design in vitro was selected to compare the accuracy of a dental implant robotic system with a dynamic navigation system.