An apex locator (endometer) is a device designed for precise measurement of root canal length.
A dental apex locator is an electronic device used by dentists (endodontists) to determine the length of the root canal up to the apex for proper cleaning and filling. It works by measuring the electrical resistance between two electrodes – a file and a lip clip. Measurements can be made in both wet and dry canals, although wet canals provide better conductivity.
The apex locator usually identifies three key areas:
apical constriction,
major apical foramen,
instrument extension beyond the apex.
Additionally, the specialist can set a “virtual apex”, which triggers an alarm when the file reaches the specified point in the apical zone.
Measuring root canal length with an apex locator is painless for the patient and allows multiple measurements without repeated X-rays. This makes apex locators safe for pregnant women and children.
Modern Woodpecker and DTE apex locators available in our online store are precise and easy to use, providing reliable performance in any clinical environment. They are essential tools for endodontic procedures and are fully compatible with endodontic motors and other canal treatment instruments.
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