<prompt> Occlusal loading resulting in tooth flexure, mechanical microfractures, and loss of tooth substance in the cervical area isAbrasionAttritionErosionAbfraction  <response>: Wasting diseases of the teeth include erosion corrosion; may be caused by acidic beverages, abrasion caused by mechanical wear as with toothbrushing with abrasive dentifrice, attrition due to functional contact with opposing teeth, and abfraction flexure due to occlusal loading. 