Determination of Young's modulus of mandibular bone using inverse analysis

• Published in: Medical engineering & physics Vol. 32; no. 6; pp. 630 - 637
• Main Authors: Odin, Guillaume, Savoldelli, Charles, Bouchard, Pierre-Olivier, Tillier, Yannick
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 01.07.2010; Elsevier
• Subjects: Aged, 80 and over; Biological and medical sciences; Biomechanical Phenomena; Biomechanics; Biomechanics. Biorheology; Computerized, statistical medical data processing and models in biomedicine; Elastic Modulus; Engineering Sciences; Female; Finite element analysis; Fundamental and applied biological sciences. Psychology; Humans; Inverse analysis; Male; Mandible; Mandible bone; Materials; Medical sciences; Models and simulation; Models, Biological; Radiology; Reproducibility of Results; Skeleton and joints; Software; Tissues, organs and organisms biophysics; Vertebrates: osteoarticular system, musculoskeletal system; Young's modulus; Biomechanics; Inverse analysis; Young's modulus; Finite element analysis; Mandible bone; Human; Elastic modulus; Mandible; Mechanical properties; Inverse problem; Osteoarticular system; Finite element method; Medical imagery; Numerical simulation; Computerized axial tomography; Simulation model; Bone; Biomedical engineering
• ISSN: 1350-4533; 1873-4030; 1873-4030
• DOI: 10.1016/j.medengphy.2010.03.009

Development of a numerical model applicable to clinical practice, and in particular oral implantology, requires knowledge of the mechanical properties of mandibular bone. The wide range of mechanical parameters found in the literature prompted us to develop an inverse analysis method that takes into account the exact geometry of each specimen tested, regardless of its shape. The Young's modulus of 3000 MPa we determined for mandibular bone using this approach is lower than the values reported in the literature. This difference can be explained by numerous experimental factors, related in particular to the bone specimens used. However, the main reason is that, unlike most previously published papers on the subject, the heterogeneity of bone led us to select a specimen size at the upper end of the scale, close to clinical reality.