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Objective of the study was to assess the potential role of zinc and copper in the process of severe enamel wear. Methods: Three groups of dental enamel samples were analyzed: 50 from subjects with worn dentition, 20 from healthy volunteers in vivo and 15 healthy teeth cut longitudinally into seven layers in vitro. The amounts of Ca, Mg and Zn in the enamel bioptates were established using atomic absorption spectroscopy with an air/acetylene flame after acid biopsy technique had been applied.doi:10.21203/rs.3.rs-150134/v1 fatcat:5h654im7ungerazxv4ny6uyoqm