Adil Shahnawaz, Alia Ahmed, Muhammad Qasim Javed.
An in vitro evaluation of ability of dentaport root ZX for correct working length determination.
Pak Oral Dental J Jan ;36(3):448-51.

This study was performed to evaluate the ability of Dentaport Root ZX to determine the working length accurately. Apex locators are considered to be one of the latest innovations that have made the outcome of the endodontic treatment more predictable. Seventy-two extracted teeth were used in present study and standard access cavities were prepared in all the teeth. Working length was first determined using direct method. The root canal length measured by direct method i.e. direct length (DL) showed a mean of 14.92 ±1.107mm and std.deviation of 1.107. For in vitro working of Dentaport Root ZX an apparatus was designed which used normal saline as the conducting medium to ensure free movement of ions between electrodes of electronic apex locator (EAL). Working length was then measured electronically using Dentaport Root ZX and noted as Electronic length (EL). EL showed a mean of 14.69 ±1.137mm and std.deviation of 1.137. Out of 72 extracted teeth that were used in present study the difference between DL and EL was insignificant (p-value < 0.05) which proves the accuracy of Dentaport Root ZX in determination of working length.

PakMediNet -Pakistan's largest Database of Pakistani Medical Journals - http://www.pakmedinet.com