%0 Journal Article
%T An in vivo radiographic evaluation of the accuracy of Apex and iPex electronic Apex locators
%A Paludo
%A Laura
%A Souza
%A Sophia Lopes de
%A S¨®
%A Marcus Vin¨ªcius Reis
%A Rosa
%A Ricardo Abreu da
%A Vier-Pelisser
%A Fabiana Vieira
%A Duarte
%A Marco Ant£¿nio H¨²ngaro
%J Brazilian Dental Journal
%D 2012
%I Dental Foundation of Ribeir?o Preto
%R 10.1590/S0103-64402012000100010
%X the aim of this study was to evaluate in vivo the clinical applicability of two electronic apex locators (eals) - apex (septodont) and ipex (nsk) - in different groups of human teeth by using radiography. the working lengths (wls) of 100 root canals were determined electronically. the eal to be used first was chosen randomly and a k-file was inserted into the root canal until the eal display indicated the location of the apical constriction (0 mm). the k-file was fixed to the tooth and a periapical radiograph was taken using a radiographic film holder. the k-file was removed and the wl was measured. the same procedure was repeated using the other eal. radiographs were examined with the aid of a light-box with lens of ¡Á4 magnification by two blinded experienced endodontists. the distance between the file tip and the root apex was recorded as follows: (a) +1 to 0 mm, (b) -0.1 to 0.5 mm, (c) -0.6 to 1 mm, (d) -1.1 to 1.5 mm, and (e) -1.6 mm or greater. for statistical purposes, these scores were divided into 2 subgroups according to the radiographic apex: acceptable (b, c, and d) and non-acceptable (a and e). statistically significant differences were not found between the results of apex and ipex in terms of acceptable and non-acceptable measurements (p>0.05) or in terms of the distance recorded from file tip and the radiographic apex (p>0.05). apex and ipex eals provided reliable measurements for wl determination for endodontic therapy.
%K electronic apex locator
%K radiographic apex
%K working length.
%U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0103-64402012000100010&lng=en&nrm=iso&tlng=en