Accuracy of computer-assisted template-guided autotransplantation of teeth with custom 3D designed/printed surgical tooling. A cadaveric study

Publication date: Available online 9 January 2017
Source:Journal of Oral and Maxillofacial Surgery
Author(s): David Anssari Moin, Jop Pieter Verweij, Hugo Waars, Richard van Merkesteyn, Daniel Wismeijer
PurposeThe aim of this cadaveric study was to assess the accuracy of the computer-assisted template-guided autotransplantation of teeth with custom 3D designed/printed surgical tooling.MethodsTen partially edentulous human mandibular cadavers were scanned with a cone-beam computed tomography (CBCT) system and intra-oral scan system. The 3D data of these cadavers were imported in specialized software and used to analyze the region of the recipient sites and the donor teeth were selected. Subsequently, congruent to the donor teeth, custom surgical tooling and surgical guided templates were designed and 3D printed. The guided osteotomies were performed and the donor teeth transplanted. To evaluate the planned donor teeth positions in comparison to the transplanted donor teeth positions the mandibles were scanned again with the CBCT system and software matching was applied to measure the accuracy of the procedure.ResultsThe mean angular deflection of the transplanted donor teeth with the planned donor teeth positions was 5.6° (5.4 SD). When comparing the 3D positions of the shoulders there is a mean deviation of 3.15 mm (1.16 SD) and a mean apical deviation of 2.61 mm (0.78 SD).ConclusionThe described method of computer-assisted template-guided autotransplantation of teeth with custom 3D designed/printed surgical tooling could potentially provide a relatively accurate alternative for the currently available treatment approaches. Further research should focus on improving the accuracy of this technique and evaluating clinical success and advantages of this method.



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