Fig. 1

(A) The bone model used in the experiment is shown. (B) The bone models with the silicone model are shown. (C) In the manual resection group, the surgeon determined the position of the osteotomy line with the help of rigid and flexible rulers and labeled the model. (D) In the conventional PSI group and novel PSI group, the surgeon used different types of PSIs, respectively, and fixed them in the optimal position with appropriate methods. After that, the surgeon conducted the osteotomy