Dentinal Hypersensitivity with Diode Laser And Dentrifice

Dentine hypersensitivity (DH) is an abnormal response of the exposed vital dentine to thermal chemical or tactile stimuli. It is characterized by an acute non-spontaneous short or long lasting pain that appears suddenly in a specific location which cannot be attributed to any other dental pathology. The DH mechanism could perhaps be explained by a combination of two theories: the ''hydrodynamic theory'' (Brannstrom & Astrom 1972) and the ''neural theory'' (Seltzer et al. 1963). These suggest that various external stimuli cause a movement of fluids in the dentinal tubules causing pain. Every treatment that reduces dentinal permeability diminishes dentinal sensitivity. The occlusion of dentinal tubules leads to the reduction of dentinal permeability so decreasing the degree of DH. Conventional therapies for DH are based on the local application of desensitizing agents either professionally or at home.