Postmortem transition in the dynamic mechanical properties of bone.
Measurements of dynamic shear compliance versus dead time at room temperatures are reported for a sample of rabbit bone and several samples of human bone, including an extracted wisdom tooth. In all cases an abrupt, second-order transition is observed in one or both components of the audio-frequency complex shear compliance, J*b = Jb; - iJb", at about 5 hours after death; this is considered to be an indication of the life-to-death transition in bones.
D000818:Animals; D001842:Bone and Bones / Q000503:physiopathology*; D003187:Compliance; D004548:Elasticity; D006801:Humans; D008954:Models, Biological; D011180:Postmortem Changes; D011817:Rabbits; D013016:Sound; D013696:Temperature; D013997:Time Factors; D014070:Tooth / Q000473:pathology; D014783:Viscosity