Dental erosion is an irreversible loss of dental tissue by a chemical process that does not involve bacteria. It is a multifactorial phenomenon that results in erosive enamel and dentin wear. The consideration of chemical, biological and behavioral factors are fundamental for its prevention and therapy. The earliest form of tooth wear was found mainly on occlusal, incisal and proximal surfaces, whereas modern erosive tooth wear has additional characteristics that include the buccal and palatal/lingual surfaces.