SIX GENERATIONS OF APEX LOCATORS
Determination of the working length is one of the most important steps of endodontic treatment as it dictates the subsequent steps in therapy too. Manual methods of determining working length were often unreliable, and radiographic methods too, posed a few disadvantages as only a two-dimensional picture could be obtained. The advent of apex locators revolutionized the field of endodontics. Apex locators are devices used in endodontics to accurately determine the working length in endodontic treatment. The first apex locator was developed in the year 1969. Since then there have been various generations of apex locators making endodontic therapy far more efficient and drastically reducing the time taken for the procedure.
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