Agentes dessensibilizantes nitrato de potássio, cloreto de estrôncio e fluoreto de sódio : revisão de literatura.

Abstract

Generally, the dentin tissue is covered by enamel in the coronary portion and by cementum in the root portion. When the loss of those protective tissues occurs the dentinal tubules are exposed and it creates painful symptoms, which causes an uncomfortable manifestation called dental hypersensitivity. It is defined by a short and strong pain as response of many stimuli, such as thermal, chemical, osmotic and tactile stimuli. These stimuli may step in to patients’ emotional life and their quality of life. The dental hypersensitivity affects about 3 and 57% of the adult population and it has highly global prevalence. Nowadays, there are many techniques and therapeutic alternatives to relive and reduce the hypersensitivity symptoms. The Hydrodynamic Theory is the most accepted concept to explain the hypersensitivity mechanics of pain. Therefore, the therapeutic is established according to the severity degree of the problem. The hypersensitivity etiology is considered multifactorial, so it is necessary to establish a correct treatment for each case. Thus, it is always important attempt to eliminate or modify the predisposing factors of the dental hypersensitivity to increase the treatment success. In most cases, the improvement might be achieved by using a desensitizing agent. Finally, the aim of this literature review is to verify the efficiency of the desensitizing agents, as Potassium Nitrate, Strontium Chloride and Sodium Fluoride. This work has concluded that the desensitizing agents are effective, easy to apply and widely used, as these have low cost as well. Although, there are a lack of current studies to demonstrate more relevant indexes about its use, also to conform its long-term effect.