Enamel softening (dental erosion)

Abstract

For many years, most of the published reports of enamel softening dealt with consequences of acid or chelator etching. It occurs without bacterial involvement. The 2-5 nm thick outer enamel surface layer is mainly concerned. Limited crystallite dissolution is due to abrasion, attrition, abfraction, or erosion. More than likely, enamel dissolution is due to acidic demineralization. At early stages, it is a reversible process. Preventive strategies include dietary counseling, stimulation of salivary flow, optimization of fluoride regimens, modification of erosive beverages, and adequate oral hygiene measures.