“…Dentin hypersensitivity (DH) is characterized by short, sharp pain arising from exposed dentin in response to stimuli, typically thermal, evaporative, tactile, osmotic, or chemical, which cannot be ascribed to any other form of dental defect or pathology, 1 and ceases after removal of the stimuli 2 . Up to now, the most widely accepted theory to explain DH is the hydrodynamic theory proposed previously 3‐5 . For the DH to occur, dentin must be exposed to the oral environment, which occurs as a result of removal of the enamel layer and/or dental cementum by attrition, abrasion, erosion, or gingival recession.…”