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Digital design and fabrication of simulation model for measuring orthodontic force

Issue title: Frontiers in Biomedical Engineering and Biotechnology – Proceedings of the 3rd International Conference on Biomedical Engineering and Biotechnology, 25–28 September 2014, Beijing, China

Article type: Research Article

Authors: Liu, Yun-Feng; | Zhang, Peng-Yuan | Zhang, Qiao-Fang | Zhang, Jian-Xing | Chen, Jie

Affiliations: Key Laboratory of E&M (Zhejiang University of Technology), Ministry of Education & Zhejiang Province, Hangzhou 310014, China | Department of Stomatology, Zhejiang People's Hospital, Hangzhou 310014, China | Department of Mechanical Engineering and Department of Orthodontics and Oral Facial Genetics, Indiana University Purdue University, Indianapolis, IN, 46202, USA

Note: [] Corresponding author: Yun-Feng Liu, Key Laboratory of E&M (Zhejiang University of Technology), Ministry of Education & Zhejiang Province, Hangzhou 310014, China. Tel.: +86 159 67144532; Fax: +86 571 88320339; E-mail: [email protected].

Keywords: Orthodontic force measurement, oral model, reconstruction, 3D printing

DOI: 10.3233/BME-141039

Journal: Bio-Medical Materials and Engineering, vol. 24, no. 6, pp. 2265-2271, 2014

Published: 2014
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Abstract

Three dimensional (3D) forces are the key factors for determining movement of teeth during orthodontic treatment. Designing precise forces and torques on tooth before treatment can result accurate tooth movements, but it is too difficult to realize. In orthodontic biomechanical systems, the periodontal tissues, including bones, teeth, and periodontal ligaments (PDL), are affected by braces, and measuring the forces applied on the teeth by braces should be based on a simulated model composed of these three types of tissues. This study explores the design and fabrication of a simulated oral model for 3D orthodontic force measurements. Based on medical image processing, tissue reconstruction, 3D printing, and PDL simulation and testing, a model for measuring force was designed and fabricated, which can potentially be used for force prediction, design of treatment plans, and precise clinical operation. The experiment illustrated that bi-component silicones with 2:8 ratios had similar mechanical properties to PDL, and with a positioning guide, the teeth were assembled in the mandible sockets accurately, and so a customized oral model for 3D orthodontic force measurement was created.

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