Dental erosion is the loss of dental hard tissue associated with extrinsic and/or intrinsic acidic substances that are not produced by bacteria.Dental erosion is a common condition in children and adults in all regions of the world.Though the chemical process of dental erosion is similar to that of caries, i.e., dissolution of hydroxyapatite by acids, the clinical manifestations and management of dental erosion are fundamentally different from caries because the erosive process does not involve bacteria.Effective management of dental erosion is largely dependent on a thorough understanding of its etiology and early recognition of its signs and symptoms in clinical practices.Prolonged contact between extrinsic or intrinsic acids with tooth surfaces will results in softening and dissolution of surface minerals.If not recognized and treated early, erosive challenges may cause severe loss of dental hard tissues that adversely affect esthetics and function of the mouth.Early intervention is key to effective prevention of erosive teeth wear.Effective prevention of dental erosion includes measures that can avoid or reduce direct contact with acids, increase acid resistance of dental hard tissues and minimizes toothbrushing abrasion.For teeth that already have tissue loss due to erosion, a minimally invasive restorative procedure should be considered as early as possible to prevent further disease progression.