WORKING LENGTH DETERMINATION.

      Аннотация: The most important aim of endodontics is the preservation of natural teeth. Accurate working length determination is a crucial part of successful endodontic treatment. It is said that "Apex is the essence of endodontics." There are certain important features at the apex of the tooth with which one needs to be familiar if an accurate working length is to be determined. If calculated within correct limits, working length will play an important role in determining the success of the treatment, and conversely, if calculated incorrectly may doom the treatment to failure. Therefore it can be seen quite clearly that the procedure for calculation of working length should be performed with skill, using technology. Endodontics is an ever changing science and has never been shy of technology. As new research and clinical experience broaden our knowledge, changes in treatment and adaptation to scientific and technological revolutions are required. Electronic determination of working length using electronic apex locator is an alternative that has developed considerable interest.

Ключевые слова: Working length determination, Root canal, convetional methods, electronic apex locators, electronic and anatomic apex