期刊
AUSTRALIAN ENDODONTIC JOURNAL
卷 49, 期 -, 页码 179-186出版社
WILEY
DOI: 10.1111/aej.12711
关键词
apex locator; EAL; perforation; root canal
This study evaluated the ability of several electronic apex locators to detect minimum root canal perforation diameter. The results showed that none of the electronic apex locators could accurately detect perforations at diameters of 0.5 mm and 0.25 mm. However, they were highly successful in detecting simulated root perforations at diameters of 1.25 mm, 1 mm, and 0.75 mm.
This study aims to evaluate the ability of Raypex 6, Propex Pixi, Dentaport ZX, Apex ID, Propex II and Dr.'s Finder NEO to detect minimum root canal perforation diameter. One hundred single-rooted, extracted human teeth were artificially perforated by 5 burs in different diameters (0.25-1.25 mm) in 5 mm above the apex. Twenty teeth were assigned to each group. The actual canal lengths (AL) were measured under stereomicroscope followed by a measurement of electronic canal length (EL) using each electronic apex locator (EAL). None of the EALs were able to detect the perforation at diameters of 0.50 and 0.25 mm. Although all EALs used in our study were unable to detect perforations at diameters of 0.5 mm and 0.25 mm, they were highly successful in the determination of simulated root perforations at diameters of 1.25, 1 and 0.75 mm.
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