Effect of orthotropic material on finite element modeling of completely dentate mandible》.pdf

Materials and Design 84 (2015) 144–153 Contents lists available at ScienceDirect Materials and Design journal homepage: www. /locate/jmad Effect of orthotropic material on finite element modeling of completely dentate mandible Xi Ding a, Sheng-hui Liao b,⁎, Xing-hao Zhu a, Hui-ming Wang c, Bei-ji Zou b a Department of Stomatology, First Affi liated Hospital of Wenzhou Medical University, Wenzhou, China b School of Information Science and Engineering, Central South University, Changsha, China c Department of Oral and Maxillofacial Surgery, First Affi liated Hospital of Zhejiang University, Hangzhou, China a r t i c l e i n f o a b s t r a c t Article history: The objective of this investigation is to construct a high quality complete dentate mandible model with detailed Received 15 January 2015 biological structures, and assign mandibular bone with inherent orthotropic material characteristics. Three differ- Received in revised form 15 May 2015 ent types of scan data are used to elaborate detailed mandibular structures, including the cortical and cancellous Accepted 17 June 2015 bone, tooth enamel, dentin, periodontal ligament, temporal fossa, TMJ articular disk, temporal cartilage, and con- Available online 25 June 2015 dylar cartilage. In addition, an extended orthotropic material assignment methodology based on harmonic fields is used to handle the alveolar ridge region of dentate man