Pini M Wiskott HW Scherrer SS Botsis J Belser UC 2002 This study is part of a research program that aims to develop a constitutive three-dimensional model of the periodontal ligament (PDL) through the identification of pertinent material parameters. As part of this program, bovine PDL was utilized to establish stress-strain responses under tensile and compressive loading conditions. Fresh bovine molars were secured, frozen and prepared to appropriate dimensional specifications. Bar-shaped specimens that comprised portions of dentine, PDL and bone were produced. Push-pull tests were conducted using a specifically constructed loading machine. Full range monotonic stress-strain diagrams were generated. The effect of a rate increase on cyclic S-E diagrams was also determined. The influence of specimen thickness was expressed in terms of modulus of elasticity, strength, uniaxial maximizer strain, and strain energy density. The overall load-response was heavily hysteretic in compression. On the tensile side, after a steep rise, the curve tended to flatten out asymptotically. Variations in rate that spanned four orders of magnitude had no effect on reciprocal load responses. The E-modulus was in the 4-8 MPa range, the strength of the PDL was 1-2 MPa, the maximizer strain was at 45-60% and the strain energy density ranged between 0.3 and 0.4 MPa. https://sonar.ch/global/documents/173632 eng info:eu-repo/semantics/altIdentifier/doi/10.1034/j.1600-0765.2002.00344.x info:eu-repo/semantics/altIdentifier/pmid/12200965 Journal of periodontal research. - 2002 Alveolar Process Analysis of Variance Animals Biomechanical Phenomena Cattle Compressive Strength Dental Stress Analysis Dentin Elasticity Microscopy, Polarization Periodontal Ligament Stress, Mechanical Temperature Tensile Strength Weight-Bearing Mechanical characterization of bovine periodontal ligament. http://purl.org/coar/resource_type/c_6501