APEX LOCATOR IN ROOT CANAL TREATMENT
DOI:
https://doi.org/10.15332/us.v2i1.1851Keywords:
Apex locator, Cemento-Dentino-Canal junction (CDC), Apical constriction, Electrical resistanceAbstract
During the accomplishment of a root canal treatment is the vital importance to determine the work length, since it limits the extention of the cleaning, shaping and later filling of the root canal system. There are different methods for the location from the apical constriction or Cemento-Dentino-Canal junction (CDC): the tactile method, the radiographic and electronic methods, like apical locators, that work using three basic principles. Those principles are the electrical resistance, the frequency or impedance and the average of several frequencies, being the last one, the one that provides the precise results and allow to locate the apical constriction in the presence of moisture, blood, fluids, electrolytic substances like the sodium hypochlorite and vital or non vital pulp. Although this method diminishes the working time, does not replace the use of the x-rays. It complement and increase to the number of successes in roots canals therapy
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