Abstract
Dentin hypersensitivity was defined as “a short, sharp pain arising from exposed dentin in response to stimuli typically thermal, evaporative, tactile, osmotic or chemical and which cannot be ascribed to any other form of dental defect or disease.” In this chapter, characteristics of this condition are discussed in addition to its prevalence reported using different methods of diagnosis. The epidemiology of the condition, its impact on the patient’s oral health quality of life, and how to measure it are also discussed.