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Material loss protects teeth against fatigue failure

Computer simulation shows that the reduction of natural dental wear might be the main cause for widely spread non-carius cervical lesions (the loss of enamel and dentine at the base of the crown) in our teeth.

Scientists of the Max Planck Institute for Evolutionary Anthropology in Leipzig and the Senckenberg Research Institute in Frankfurt together with dental technicians have digitally analysed modern human teeth using an engineering approach, finite element method, to evaluate the biomechanical behaviour of teeth under realistic loading. They report results, showing that very widespread loss of dental material (enamel and dentine) at the base of the crown might be linked to the reduction of tooth wear in our industrialised societies.