Abstract
Successful root canal treatment depends on thorough cleaning & shaping and 3- dimensional fluid impervious obturation of tooth within the confines of canals. To achieve this objective the apical constriction must be detected accurately during canal preparation and precise control over working length during the procedure must be maintained. There are many methods of working length determination including radigraphs and electronic method(apex locator). Introduction of apex locators have definitely served as an effective adjuvant to radiographs.
Highlights
Minor apical foramen is the point where conductive materials within the canal space is electrically conducted to PDL which itself is a conductor of electric current
First generation apex locators [1, 3, 9]. These devices measures opposition to the flow of direct current or resistance that′s why are defined as resistance base apex locators and were found to be unreliable when compared with radiographs, as many readings were being significantly longer or shorter than the accepted working length. eg
There is a general consensus that the file size does not affect the accuracy of EAL’s. [18] A study was conducted by Nguyen et al to observe the effect on the measurement of the relative diameters of the file and the root canal using Root ZX
Summary
An Apex locator is an electronic device used in endodontics to determine the length of the Root Canal. [3] The fundamental electronic oper-ating principles are often unknown and a matter of controversy. An Apex locator is an electronic device used in endodontics to determine the length of the Root Canal. Electrical condition of canal affects the accuracy, Difficulty occur in teeth with open apex, Results are very inconsistent in case of vital teeth These devices measures opposition to the flow of direct current or resistance that′s why are defined as resistance base apex locators and were found to be unreliable when compared with radiographs, as many readings were being significantly longer or shorter than the accepted working length. USA; Irvine, Calif.) [8, 13] The cordless Tri Auto ZX is an endodontic handpiece with a built-in apex-locator, providing the capability to monitor the root canal before, during and after instrumentation electronically. Necrotic pulps with a periapical radiolucency measured 1.5mm error beyond the constriction because these radiolucencies lacked a periodontal ligament and the periapical bone which causes an abnormally long reading
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
