| ORIGINAL ARTICLE |
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| Year : 2016 | Volume
: 28
| Issue : 1 | Page : 18-22 |
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A comparative clinical study on the correlation of working length determined using three different electronic apex locators with radiographic working length: An in vivo study
Devi S Lekshmy1, PR Deepthi1, C Ganesh1, George Chacko1, A Abhilash2, SL Satheesh1, Lakshmi Aravind1, Siddharth V Nair1, Sreeja Sreedhar1
1 Department of Conservative Dentistry, Sri Sankara Dental College, Varkala, Thiruvananthapuram, Kerala, India
2 Department of Restorative Dental Science, College of Dentistry, King Khalid University, Abha, Saudi Arabia
Correspondence Address:
Devi S Lekshmy
Department of Conservative Dentistry and Endodontics, Sri Sankara Dental College, Varkala, Thiruvananthapuram, Kerala
India
 Source of Support: None, Conflict of Interest: None  | Check |
DOI: 10.4103/0970-7212.184325
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Aim: This in vivo study was done to correlate the values of three different electronic apex locators: Root ZX, iPex, and Apex ID, with the radiographic working length (WL).
Materials and Methods: Nineteen maxillary incisors with completely formed root apices indicated for endodontic treatment were chosen. After access preparation, coronal flaring and pulp extirpation, electronic measurement of WL was done with a No: 15 K file using the three devices on each tooth. A WL radiograph was then taken with the file placed within the canal and the length determined by following Ingle's method. The data were then analyzed using the correlation coefficient and Z-test.
Results: Root ZX showed the maximum correlation (r = 0.9881) with radiographic WL followed by Apex ID (R = 0.9731) and iPex (R = 0.9508). Root ZX had a statistically significant higher correlation with radiographic WL in comparison with iPex (P < 0.05).
Conclusion: Maximum correlation of readings with the radiographic length was shown by Root ZX followed by Apex ID and then by iPex. |
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