title: Modified bone density-dependent orthotropic material model of human mandibular bone.
abstract: The prediction accuracy of computational simulations of various biomechanical problems of human bones depends on proper modelling of the problem geometry and boundary conditions but it is also essentially dependent on proper description of the mechanical properties of the all constitutive elements. As the human mandibular bone is a very important load-carrying element in biomechanics, the main aim of this research was to develop an innovative, not yet described in literature, spatial and bone density-dependent orthotropic material model of the human mandibular bone for use in the computational simulations. We compared it with the most used constitutive material models in the computational simulations of the human mandibular bone behaviour with inserted dental implant. The results show that the von Mises equivalent stress distribution values in the bone density-dependent orthotropic model are higher in comparison with other models but the highest are on the top of the alveolar ridge and higher in the lingual than in the buccal part of the lower jaw.
authors.affiliation: University of Maribor, Faculty of Mechanical Engineering, Smetanova 17, SI-2000 Maribor, Slovenia. Electronic address: franci.gacnik@guest.um.si.
authors.forename: Franci
authors.initials: F
authors.lastname: Gačnik
authors.affiliation: University of Maribor, Faculty of Mechanical Engineering, Smetanova 17, SI-2000 Maribor, Slovenia.
authors.forename: Zoran
authors.initials: Z
authors.lastname: Ren
authors.affiliation: University of Ljubljana, Medical Faculty, Clinical Department of Maxillofacial and Oral Surgery, Zaloška 2, SI-1000 Ljubljana, Slovenia.
authors.forename: Nataša Ihan
authors.initials: NI
authors.lastname: Hren
mesh_terms: D001696:Biomechanical Phenomena; D015519:Bone Density / Q000502:physiology*; D003198:Computer Simulation; D015921:Dental Implants; D055119:Elastic Modulus; D020342:Finite Element Analysis; D006801:Humans; D008334:Mandible / Q000502:physiology* / Q000601:surgery; D008954:Models, Biological; D033081:Shear Strength; D013314:Stress, Mechanical
chemical_list: D015921:Dental Implants
keywords: Bone density; Finite element analysis; Hounsfield unit; Mandibular bone; Mechanical properties; Orthotropic material