caa a22 4500 44585118X CHVBK 20180317145414.0 cr unu---uuuuu 170323e20110901xx s 000 0 eng 10.1007/s10006-010-0247-4 doi (NATIONALLICENCE)springer-10.1007/s10006-010-0247-4 Development of a simulation system in mandibular orthognathic surgery based on integrated three-dimensional data [Elektronische Daten] [Yoshihide Mori, Hidetaka Shimizu, Katsuhiro Minami, Tae-Geon Kwon, Takamitsu Mano] Purpose: Surgical simulation should reflect the 3D movement of dentition and the resultant movement of the osteotomized segments, which can influence surgical outcome. The present study was aimed at developing a new simulation system that enables virtual osteotomy of a given surgical situation and evaluation of the bony interference between the osteotomized segments of the mandible. Subjects and methods: The data of 3D computer tomography (CT) for maxillomandibular dental casts were integrated into the standard coordinates of a 3D cephalogram. To evaluate the accuracy of the system, measurement errors of the 3D CT virtual model from a dry skull were compared with the computer simulation system and a contact-type 3D digitizer. To examine the clinical accessibility, 15 mandibular prognathism patients with mild to severe asymmetry were evaluated with the simulation program. Results: The average error of measurement in all directions was 1.31mm. It was possible to simulate various osteotomy procedures by conversion of the 3D coordinates of the dental cast and CT data into the standard coordinate system of a 3D cephalogram. Using this simulation system, it was possible to prevent condylar torque or segment malpositioning by removing the bony interference visualized by a 3D virtual model. Conclusion: A new system, which enables the precise visualization of osteotomized segments and calculation of bony interference, was proposed in the present study. This new system provides an acceptable precision of treatment planning of orthognathic surgery, especially for facial asymmetry. The Author(s), 2010 Surgical simulation nationallicence Three-dimensional nationallicence Computer tomography (CT) nationallicence Orthognathic surgery nationallicence Sagittal split ramus osteotomy (SSRO) nationallicence Mori Yoshihide Department of Oral and Maxillofacial Surgery, Graduate School of Dentistry, Kyushu University, 3-1-1 Maidashi, Higashi-ku, 812-8582, Fukuoka, Fukuoka, Japan aut Shimizu Hidetaka Department of Oral and Maxillofacial Surgery II, Graduate School of Dentistry, Osaka University, 1-8 Yamadaoka, 565-0871, Suita, Osaka, Japan aut Minami Katsuhiro Cleft Lip and Palate Center, Aichigakuin University Hospital, 2-1-1 Suemori-dori, Chikusa-ku, 464-8651, Nagoya, Aichi, Japan aut Kwon Tae-Geon Department of Oral and Maxillofacial Surgery, College of Dentistry, Kyungpook National University, 101 Dongin-dong, Chung-gu, 700-422, Daegu, South Korea aut Mano Takamitsu Department of Oral and Maxillofacial Surgery, Graduate School of Medicine, Yamaguchi University, 1-1-1 Minamikogushi, 755-8505, Ube, Yamaguchi, Japan aut Oral and Maxillofacial Surgery Springer-Verlag 15/3(2011-09-01), 131-138 1865-1550 15:3<131 2011 15 10006 https://doi.org/10.1007/s10006-010-0247-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10006-010-0247-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Mori Yoshihide Department of Oral and Maxillofacial Surgery, Graduate School of Dentistry, Kyushu University, 3-1-1 Maidashi, Higashi-ku, 812-8582, Fukuoka, Fukuoka, Japan aut NATIONALLICENCE 700 1- Shimizu Hidetaka Department of Oral and Maxillofacial Surgery II, Graduate School of Dentistry, Osaka University, 1-8 Yamadaoka, 565-0871, Suita, Osaka, Japan aut NATIONALLICENCE 700 1- Minami Katsuhiro Cleft Lip and Palate Center, Aichigakuin University Hospital, 2-1-1 Suemori-dori, Chikusa-ku, 464-8651, Nagoya, Aichi, Japan aut NATIONALLICENCE 700 1- Kwon Tae-Geon Department of Oral and Maxillofacial Surgery, College of Dentistry, Kyungpook National University, 101 Dongin-dong, Chung-gu, 700-422, Daegu, South Korea aut NATIONALLICENCE 700 1- Mano Takamitsu Department of Oral and Maxillofacial Surgery, Graduate School of Medicine, Yamaguchi University, 1-1-1 Minamikogushi, 755-8505, Ube, Yamaguchi, Japan aut NATIONALLICENCE 773 0- Oral and Maxillofacial Surgery Springer-Verlag 15/3(2011-09-01), 131-138 1865-1550 15:3<131 2011 15 10006 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer