hypersensitive dentin

hy·per·sen·si·tive den·'tin

exposed dentin, usually at the cervical portion of a tooth, painful to touch, sweetness, or temperature changes.

hy·per·sen·si·tive den·tin

(hīpĕr-sensi-tiv dentin) Exposed dentin, usually at the cervical portion of a tooth, painful to touch, sweetness, or temperature changes.