Mechanical and chemical characterisation of demineralised human dentine after amalgam restorations

摘要

Objectives: The purpose of this study was to evaluate the ability of Zn-free us Zn-containing amalgams to induce remineralisation at the dentine interface. Methodology: Sound and caries-affected dentine surfaces (CAD) were subjected to both Zn-free and Zn-containing dental amalgam restorations. Dentine surfaces were studied by nano-indentation, Raman spectroscopy/cluster analysis, X-ray diffraction (XRD), field emission electron microscope (FESEM) and energy-dispersive analysis (EDX), for mechanical, morphological and chemical characterisation. Analyses were performed before and after placement amalgam restorations.