What is dentin hypersensitivity?
This term refers to the painful sensation that results from exposed dentin in your mouth. Dentin is the tissue that makes up the core of each tooth. Above the gumline, dentin is covered by a protective coating of enamel. When enamel is worn away or decayed, dentin eventually becomes exposed and receptive to sensations which cause painful nerve responses. Dentin exposure and pain can also occur when roots are exposed, as the result of gum recession.
