title: Evaluation of Dentaport ZX and Raypex 6 electronic apex locators: an in vivo study.
abstract: BACKGROUND
  Raypex 6 is an electronic apex locator (EAL) that has not yet been tested in vivo. The purpose of this in vivo study was to compare the accuracy of two EALs: the Dentaport ZX and the Raypex 6.
  
  
  METHODS
  The study involved 36 straight single-rooted teeth. A 10-K file was advanced until the EAL detected the major foramen. The file was fixed in a replaceable pattern of light-cured composite. The apical part of each canal was trimmed to expose the file tip. The distances from the file tips to the major foramen were measured.
  
  
  RESULTS
  Wilcoxon's signed Rank test found no significant differences between the Dentaport ZX and Raypex 6 in terms of their abilities to detect the major foramen (P = .52) The Dentaport ZX was accurate 82.35% of the time to ± 0.5 mm and 97.05% of the time to ± 1 mm, whereas the Raypex 6 was accurate 88.22% of the time to ± 0.5 mm and 100% of the time to ± 1 mm.
  
  
  CONCLUSIONS
  No statistically significant differences were observed between the performance of the Dentaport ZX and Raypex 6 EALs under the in vivo clinical conditions used in this study.
authors.affiliation: Dentistry Faculty Universitat Internacional de Catalunya, C/Josep Truet, s/n. 08195, Sant Cugat del Vallès, Spain, fduranst@hotmail.com.
authors.forename: S
authors.initials: S
authors.lastname: Moscoso
authors.forename: K
authors.initials: K
authors.lastname: Pineda
authors.forename: J
authors.initials: J
authors.lastname: Basilio
authors.forename: C
authors.initials: C
authors.lastname: Alvarado
authors.forename: M
authors.initials: M
authors.lastname: Roig
authors.forename: F
authors.initials: F
authors.lastname: Duran-Sindreu
mesh_terms: D006801:Humans; D012390:Root Canal Therapy / Q000295:instrumentation*; D019227:Tooth Apex / Q000033:anatomy & histology