Abstract:

BACKGROUND: Animal experimental model of the rapid tooth movement has been established through distraction osteogenesis domestically, based mainly on basic research. It has not been reported about the biomechanical mechanism of the rapid tooth movement through distraction osteogenesis.
OBJECTIVE: To establish three-dimensional finite element model (3-D FEM) with high geometric and mechanical similarity of rapid canine movement through reducing resistance and distraction osteogenesis, and to set up a flexible platform for analyzing the biomechanics of rapid canine movement through reducing resistance and distraction osteogenesis, optimization design and selecting the method for surgery.
METHODS: By the scanning of spiral CT with 64 rows, the sectional image data in DICOM of maxillary and upper teeth were obtained. With the help of Mimics, Geomagic Studio 8.0, Unigraphics NX and Ansys 11.0 software, the 3-D FEM of rapid canine movement was established through reducing resistance and distraction osteogenesis, including maxillary, upper teeth and periodontal ligament.
RESULTS AND CONCLUSION: A 3-D FEM of rapid canine movement through reducing resistance and distraction osteogenesis was established, which consisted of 43 477 elements and 83 577 nodes, which could add or delete the framework according to different research needs. The 3-D FEM with high geometric and mechanical similarity provided a favorable platform for analyzing the biomechanics behavior of rapid canine movement through reducing resistance and distraction osteogenesis, which provide theory bases for clinical application generally.