dentin (dentinal) hypersensitivity

den·tin (den·ti·nal) hy·per·sen·si·tiv·i·ty

(den'tin den'tĭ-năl hī-pĕr-sen-sĭ-tiv'ĭ-tē) Short, sharp transient painful reaction (possibly related to loss of cementum) that occurs when some areas of exposed dentin are subjected to a mechanical stimulus, thermal stimulus, or chemical stimulus; cannot be explained as arising from any other form of dental defect or pathology and subsides quickly when stimulus ceases.