Haffner, C. and Folwaczny, M. and Galler, Kerstin and Hickel, R. (2005) Accuracy of electronic apex locators in comparison to actual length - an in vivo study. JOURNAL OF DENTISTRY, 33 (8). pp. 619-625. ISSN 0300-5712,
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Objectives: The measurement precision of four electronic apex locators (Root ZX, Morita, Tokyo, Japan; Endy, Loser, Leverkusen, Germany; Justy II, Hager-Werken, Duisburg, Germany; Endox Lysis, Milan, Italy) was examined in the present in vivo study. Methods: The root canal length of 40 single-rooted and multi-rooted teeth was determined with the four devices prior to tooth extraction. To determine the actual root canal length, the apical third was longitudinally sectioned, the root canal instrument was positioned and the apex was examined using a microscope. Results: The average measurement deviation ( +/- SD) in relation to the apical constriction was 0.3mm ( +/- 0.6) for the Root ZX, 0.7mm ( +/- 1.0) for the Endy, 0.2 mm ( +/- 0.7) for the Justy II and 1.3 mm (+/- 1.7) for the Endox. The limit of +/- 0.5 mm from the apical constriction was attained by the Root ZX in 78%, by the Endy in 67%, by the Justy II in 80% and by Endox in 31% of all measurements. Conclusions: The Latest generation of apex locaters provide the clinician with an accurate and useful adjunct for the determination of root canal length. (c) 2005 Elsevier Ltd. All rights reserved.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ROOT-CANAL LENGTH; DETERMINING TOOTH LENGTH; CLINICAL-EVALUATION; MEASURING-INSTRUMENTS; ENDODONTIC TREATMENT; RATIO METHOD; ZX; PRINCIPLE; working length; endodontic; measurement precision; determination; apical foramen |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Zahnerhaltung und Parodontologie |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 30 Apr 2021 05:08 |
| Last Modified: | 30 Apr 2021 05:08 |
| URI: | https://pred.uni-regensburg.de/id/eprint/35697 |
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