3D finite element mesh generation of complicated tooth model based on CT slices

Computer Methods and Programs in Biomedicine
Jianxin GaoZuquan Ding

Abstract

An interactive three-dimensional finite element generation method is presented for modelling a multi-connected teeth and mandible structure. The tetrahedron is chosen as the basic element type due to its rigorous adaptability to structures with geometric complexities. The mesh generation is implemented by allocating two quadrangles in adjacent CT image slices to form a set of tetrahedrons. By examining all the possible allocations and their degradations, an algorithm is developed for interactive mesh generation, resulting in a series of tetrahedrons consistent with all the others without overlapping and spacing. The developed system was applied to a tooth-mandibular structure, generating a complicated 3D FEM model consisting of 4762 nodes and 18,534 tetrahedral elements with nine different materials. This 3D model was successfully used to evaluate different tooth restoration strategies, which proved the viability and effectiveness of the proposed method.

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Citations

Feb 1, 2011·International Journal of Biological Sciences·A BoccaccioA Desiate
Oct 4, 2014·The Journal of Prosthetic Dentistry·Andréa Alves de Sousa, Beatriz Silva Câmara Mattos
May 2, 2012·The Journal of Prosthetic Dentistry·Elcio Ricardo MiyashitaHamilton Navarro
May 17, 2011·Computer Methods and Programs in Biomedicine·Sheng-Hui LiaoXi Ding
May 3, 2011·Computer Methods and Programs in Biomedicine·Isis A V P PoiateEdgard Poiate
May 4, 2010·Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics·Péter BujtárJózsef Barabás
May 28, 2007·Optics Express·Dejan PantelicIlija Belic
Nov 7, 2007·Computer Methods and Programs in Biomedicine·Sheng-Hui LiaoJin-Xiang Dong
Apr 9, 2015·Medical & Biological Engineering & Computing·Laís S MunariCláudia S Magalhães
Mar 5, 2015·Journal of Oral Biology and Craniofacial Research·Shilpa Trivedi
Jul 22, 2018·Journal of Healthcare Engineering·Xinwen ZhouZeyang Xia

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