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2종 전자근관장측정기의 일관성에 관한 in vitro 연구

Other Titles
In vitro evaluation of the consistency of two electronic apex locators
Authors
황규용  ;  노병덕  ;  김의성  ;  이승종
Citation
Journal of Korean Academy of Operative Dentistry (대한치과보존학회지), Vol.33(1) : 20-27, 2008
Journal Title
Journal of Korean Academy of Operative Dentistry(대한치과보존학회지)
ISSN
1225-0864
Issue Date
2008
Keywords
Electronic apex locator , accuracy , consistency , Micro­CT
Abstract
The purpose of this study was to evaluate the consistency of two electronic apex locators in vitro model. Materials consisted of fifty two extracted premolars and two electronic apex locators; Root ZX (J. Morita, Osaka, Japan) and E-Magic Finder Deluxe (S-Denti. Cheonan, Korea). After access preparation, the teeth were embedded in a saline-mixed alginate model. Canal lengths of each tooth were measured at "0.5" and "Apex" mark of the apex locators, respectively so that each tooth had two measurements from 0.5 and Apex points. The file was fixed at final measurement using a glass ionomer cement. The apical 4 mm from the apex was exposed to measure the distance from the file tip to the major apical foramen of each tooth. Average distances and standard deviations were used to evaluate the consistency. Results showed that all measurements of both Root ZX and E-Magic Finder located the major foramen the range of ${\pm}0.5\;mm$ level. Both apex locators showed better consistency at Apex mark than at 0.5 mark. The average distance of file tip-major foramen was - 0.18 mm at 0.5 mark and - 0.07 mm at Apex mark in Root ZX, - 0.25 mm at 0.5 mark and - 0.02 mm at Apex mark in E-Magic Finder. Standard deviation was 0.21 at 0.5 mark and 0.12 at Apex mark in Root ZX, 0.12 at 0.5 mark and 0.09 at Apex mark in E-Magic Finder
Files in This Item:
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Conservative Dentistry (보존과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Eui Seong(김의성)  https://orcid.org/0000-0003-2126-4761
Roh, Byoung Duck(노병덕)
Lee, Seung Jong(이승종)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/107099
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