Electron Microprobe and Microhardness Studies of Enamel Remineralization

Abstract
Enamel samples were demineralized and subsequently remineralized in a calcifying solution. Microhardness, which dropped after acid etching, recovered its hardness in part after remineralization. The mean calcium and phosphorus concentrations of the softened enamel increased after remineralization. The Ca/P weight ratio remained within the range of 2.05 to 2.12 in all enamel samples.