Online ISSN: 2515-8260

Keywords : Working Length


COMPARISON OF WORKING LENGTH DETERMINATION USING TWO ELECTRONIC APEX LOCATORS- AN IN VIVO STUDY

Deepika Yadav; Avdesh Sharma; Paroma Sinha; Apurva Pawar; Shafia .

European Journal of Molecular & Clinical Medicine, 2020, Volume 7, Issue 11, Pages 8135-8145

Background and Aim: Traditional methods for establishing working length include the use of radiography which is technique sensitive in both their exposure and interpretation. Electronic apex locators are well known for accurate determination of working length. This study was aimed to compare the working length using two different electronic apex locaters and to compare the electronic apex locator method with radiographic method. Materials & Methods: Authors studied fifty single rooted teeth of patients of ages 15-30 years. The root canals were further instrumented to size 20 K file. Two apex locators Root ZX II and ProPex II with identical frequencies were used. The position of the major foramen in relation to the anatomic apex and the presence of apical resorption were evaluated for each tooth by surgical microscope at 15X. Measurement was read to the nearest 0.5mm and the actual working length was established by subtracting 0.5mm from the true canal length. The distances measured between the two Electronic Apex Locator groups were compared. Statistical Analysis and Results: Data was sent for statistical analysis using statistical software Statistical Package for the Social Sciences. 50 measurements for each Electronic Apex Locators were obtained. The mean distance between the file tip and the minor diameter was +0.0060 mm (±0.49 mm) for the Root ZX II. The mean distance was +0.0170 mm (± 0.55 mm) for the ProPex II.

An Insight Into Electronic Apex Locator

Ramachandran Tamilselvi; Joshil Adolf Ebiraj; Venkatachalam Prakash; Arunajatesan Subbiya

European Journal of Molecular & Clinical Medicine, 2020, Volume 7, Issue 3, Pages 2086-2092

Prior to root canal treatment at least one undistorted radiograph is required to assess canal morphology. A correct working length with the help of Radiograph or Electronic Apex Locator is one of the critical factors for the success of Endodontic Treatment. Short measurements may leave parts of the Root Canal un-instrumented. On the other hand, over instrumentation with enlargement of the apical constriction may result in damage to peri radicular tissues. Therefore correct working length has a role in treatment success. Compared to Radiograph, Electronic Apex Locators reduces the number of radiographs and assists where radiograph method is difficult to access. This review of literature focusses on the insight into electronic apex locator. Search engines used are, PubMed and Google Scholar.