RT Journal Article
T1 Accuracy of the Justy II apex locator in determining working length in simulated horizontal and vertical fractures
A1 Azabal Arroyo, Magdalena
A1 Garcia Otero, D
A1 Macorra García, José Carlos De La
AB Aim: to study the effectiveness of an electronic apex locator (Justy II) in locating simulated horizontal and vertical fractures in single roots.Methods: an electronic apex locator (EAL) (Justy II, Yoshida Dentcraft, Tokyo, Japan) was used to measure the distance within the canal of horizontal (n=31) and vertical (n=31) fractures, created with a disk in single-rooted teeth. Accuracy of the EAL was evaluated by comparing the measurements with those made using a size 10 file. Data were analyzed with the non-parametric Passing and Bablok method.Results: for simulated horizontal fractures the EAL measured exactly the same length as a size 10 file, without constant or proportional errors. In vertical simulated fractures the EAL measured (on average) with a constant error of 7.5 mm shorter than the size 10 file; the difference had a wide confidence interval (–72.3 to 2.6 mm). Conclusion: in this laboratory study, the Justy II EAL was able to determine accurately the position of simulated horizontal fractures but was unreliable when measuring simulated vertical fractures.
YR 2004
FD 2004
LK https://hdl.handle.net/20.500.14352/52242
UL https://hdl.handle.net/20.500.14352/52242
LA spa
DS Docta Complutense
RD 6 abr 2025