Dental image replacement on cone beam computed tomography with three-dimensional optical scanning of a dental cast,occlusal bite,or bite tray impression |
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| Institution: | 1. Department of Oral and Maxillofacial Surgery, National Health Insurance Service Ilsan Hospital, Goyang, Republic of Korea;2. Department of Oral and Maxillofacial Surgery, College of Dentistry, Yonsei University, Seoul, Republic of Korea;1. Oral and Maxillofacial Surgery, Ako City Hospital, Hyogo, Japan;2. Oral and Maxillofacial Surgery, Kanagawa Dental College, Yokusuka, Kanagawa, Japan;1. Department of Oral and Maxillofacial Surgery, University Hospital Tübingen, Tübingen, Germany;2. Medical Virology, Division of Experimental Virology, University Hospital Tübingen, Tübingen, Germany;1. Department of Cranio-Maxillofacial Surgery, Jagiellonian University Medical College, Rydygier Hospital, Cracow, Poland;2. Department of Pathomorphology, Jagiellonian University Medical College, Cracow, Poland;1. BIT Research Centre, Department of Industrial Engineering and Management, School of Science and Technology, Aalto University, P.O. Box 15500, FI-00076 Helsinki, Finland;2. Oral and Maxillofacial Unit, Department of Otorhinolaryngology, Tampere University Hospital, P.O. Box 2000, FI-33521 Tampere, Finland;3. Institute of Solid Mechanics, Mechatronics and Biomechanics, Faculty of Mechanical Engineering, Brno University of Technology, Technická 2896/2, 616 69 Brno, Czech Republic;4. Dept. of Otolaryngology – Head & Neck Surgery, Helsinki University Hospital and University of Helsinki, P.O. Box 220, FI-00029 Helsinki, Finland;5. Medical Imaging Center, Department of Radiology, Tampere University Hospital, P.O. Box 2000, FI-33521 Tampere, Finland |
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| Abstract: | The goal of the present study was to compare the accuracy of dental image replacement on a cone beam computed tomography (CBCT) image using digital image data from three-dimensional (3D) optical scanning of a dental cast, occlusal bite, and bite tray impression. A Bracket Typodont dental model was used. CBCT of the dental model was performed and the data were converted to stereolithography (STL) format. Three experimental materials, a dental cast, occlusal bite, and bite tray impression, were optically scanned in 3D. STL files converted from the CBCT of the Typodont model and the 3D optical-scanned STL files of the study materials were image-registered. The error range of each methodology was measured and compared with a 3D optical scan of the Typodont. For the three materials, the smallest error observed was 0.099 ± 0.114 mm (mean error ± standard deviation) for registering the 3D optical scan image of the dental cast onto the CBCT dental image. Although producing a dental cast can be laborious, the study results indicate that it is the preferred method. In addition, an occlusal bite is recommended when bite impression materials are used. |
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| Keywords: | dental occlusion computed tomography registration |
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