Dentinal hypersensitivity is characterized by a
short, sharp pain in response to stimuli. Dentinal hypersensitivity,
which is more commonly seen in adults in
the 20-40 year old age group, has several etiological
factors. Gingival recession and enamel loss both
contribute to the prevalence of this condition, resulting
in the exposure of dentin. Dentinal hypersensitivity is
believed to occur due to the movement of fluid within
the dentinal tubules occuring in response to thermal,
chemical, tactile and evaporative stimuli, in accordance
with Brännström’s Hydrodynamic Theory. Treatment
options include in-office procedures and home use
products that are aimed at occluding the dentinal
tubules or preventing neural transmission, thereby
blocking the pain response.