apex locator

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a·pex lo·ca·tor

(āpeks lōkā-tŏr)
Electronic device used to identify the vertex of the root canal.
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
Working lengths for the palatal and DB canals were determined with an apex locator (Root ZX; Morita, Tokyo, Japan) and confirmed radiographically.
This might be due to not using apex locator and taking multiple periapical radiographs in the determination of working length in our student clinics.
MM control: Endo motor with torque and speed control + integrated apex locator
NSK created SmartLogic, a next-generation Apex Locator which removes virtually all signal in- terference from the root canal itself to precisely detect the location of the apex.
An apex locator was used to estimate the working lengths prior to establishing a working length radiographically.
Apical line indicator on the LED of the apex locator was adjusted at 0.5 position.
A MMC 15 file retraces the canal path, frees the foramen from any obstruction and activates the irrigation solution.30 This verification of the apical anatomy is particularly important when using a single in- strument method, since over instrumentation leads to significant post-operative symptomatol- ogy.31 The use of an electronic apex locator is highly recommended32, especially regarding their current precision after elimination of con- straints in the coronal third.
ProPex II (Dentsply Maillefer, Ballaigues, Switzerland) is a multi-frequency based apex locator which is based on the same principles of the other modern devices which use multiple frequencies to determine root canal length.
Advanced techniques of working length determination include digital radiography and electronic apex locator. The objective of the present study was to juxtapose the difference between the precision of working length taken by digital radiographs and third generation electronic apex locator and correspond it with directly measured root canal lengths after extraction of the same teeth.