Article ID Journal Published Year Pages File Type
3167529 Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontology 2010 5 Pages PDF
Abstract

ObjectiveThe aim of this study was to evaluate the precision of working length determination of 3 electronic apex locators (EALs): Root ZX, RomiApex D-30, and Ipex at 0.0 mm, at the apical foramen (AF), and at 1.0 mm short of the AF.MethodologyThirty-eight mandibular premolars had their real lengths previously determined. Electronic measurements were determined at 1.0 mm, followed by measurements at 0.0 mm, performed in triplicate.ResultsPrecision of devices at 1.0 mm and 0.0 mm were: 94.7% and 97.4%, respectively (Root ZX); 78.9% and 97.4% (RomiApex D-30); and 76.3% and 97.4% (Ipex). Although no statistical differences were observed between the EALs at 0.0, at 1.0 mm Root ZX performed significantly better than the others.ConclusionThe EALs had acceptable precision when measuring the working length at the AF. However, when used at levels short of the AF, only Root ZX did not suffer a significant negative effect on precision.

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Health Sciences Medicine and Dentistry Dentistry, Oral Surgery and Medicine
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