Use of electronic apex locator in the impossibility of radiographic visualization of the root apex: report of two cases

Resumo

Electronic apex locators have been widely used for
foraminal identification and for working length determination.
The establishment of a correct apical limit is essential for a good
prognosis in cases of pulp vitality or pulp infection. Objective and
Case reports: The aim of the study is to report two cases where the
use of electronic apex locators was crucial due to the inability to
visualize the root apex due to a post-surgical retaining plate (case 1)
and during orthodontic treatment with a maxillary expander (case
2). Conclusion: In this light we could confirm the effectiveness of
these devices for the determination of the working length when it
is impossible to perform it by radiographic techniques.