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Year : 2018  |  Volume : 8  |  Issue : 4  |  Page : 349-353

Comparative evaluation of accuracy of two electronic apex locators in the presence of contemporary irrigants: An in vitro study

1 Department of Conservative Dentistry and Endodontics, Vyas Dental College and Hospital, Jodhpur, Rajasthan, India
2 Department of Conservative Dentistry and Endodontics, Jodhpur Dental College General Hospital, Jodhpur, Rajasthan, India
3 Department of Prosthodontics, Jodhpur Dental College General Hospital, Jodhpur, Rajasthan, India
4 Department of Oral Pathology, CKS Theja Institute of Dental Sciences, Tirupati, Andhra Pradesh, India

Correspondence Address:
Dr. Nidhi Sinha
Preksha Dental Care and Implant Center, Preksha Hospital, Pal Road, Jodhpur - 342 001, Rajasthan
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jispcd.JISPCD_50_18

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Aim: The present study was aimed to compare the accuracy of Root ZX Mini and Propex II in the presence of 0.1% octinidine dohydrochloride (OCT), 2% chlorhexidine gluconate(CHX), and 5% sodium hypochlorite(NaOCl) heated and nonheated before and after preparation. Materials and Methods: Eighty extracted single-rooted teeth were selected for the study and decoronated. Teeth were mounted in an alginate model. Actual working length(AL) was measured using a stereomicroscope under×4 magnification. Electronic working length measurements were recorded using Root ZX Mini and Propex II apex locators in the presence of 0.1% OCT, 2% CHX, and 5% NaOCl(nonheated and heated to 60°C) before and after preparation. Mean and standard deviation differences before and after preparation were calculated and statistically analyzed using analysis of variance and paired t-test. Results: The accuracy of Root ZX Mini before and after preparation within±0.5mm of AL was consistently high in the presence of irrigants than Propex II. 5% NaOCl(heated and nonheated) showed more variation than the other irrigants, in the working length determination in both the apex locators. Conclusion: Electronic length measurements were shorter with heated and nonheated 5% NaOCl and longer with 0.1% OCT and 2% CHX for both the electronic apex locators.

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