Sodium Fluoride and Dentinal Hypersensitivity

Abstract

SUMMARY Dentinal hypersensitivity is an alteration that occurs as a consequence of the exposure of the dentine’s superficial layer, exposing the dentinal tubules and the odontoblasts’ nervous terminations to varied external stimulations. Its etiology varies widely, being characterized by an exaggerated, acute, sudden and short-termed painful symptom, which originates in response to a tactile, thermal, electrical, evaporative, chemical and osmotic stimulation. There are many forms of treatment, however, not all of them are safe and efficient, capable of eliminating the painful symptoms. This work has the objective of observing the efficacy of the use of sodium fluoride at 8% for the removal of dentinal hypersensitivity symptoms in two clinical cases. It was concluded that, sodium fluoride at 8% is an efficient method for removing the painful symptom of the exposed dentine. DESCRIPTORS Dentinal hypersensitivity. Dentinal sensitivity. Dentinal desensitization.