Year : 2017 | Volume
: 14 | Issue : 1 | Page : 12--16
In-vitro comparison of four different working length determination techniques
Mohamed I Elshinawy
Department of Endodontics, Faculty of Dentistry, Tanta University, Tanta, Egypt; Department of Restorative Dental Sciences, College of Dentistry, King Khalid University, Abha, Saudi Arabia
Aim: The aim of this study was to compare four different working length determination techniques.
Materials and methods: Fifty extracted single-canaled anterior teeth were decoronated. The root canals' working lengths were repetitively determined in five groups (n = 50 each) using regular radiographic film (group 1), digital radiographic image (group 2), cone-beam computed tomographic image (group 3), electronic apex locator (group 4) and direct measurement (group 5, control) by subtracting 0.5 mm from the length of # 15 k-file visible at the apical foramen. The collected data was statistically analyzed using both analysis of variance and least significant difference (LSD) comparisons at P value less than or equal to 0.05.
Results: The one-way analysis of variance indicated a difference between the data of study groups (P = 0.011). The LSD comparisons revealed a longer working length (LSD, P ≤ 0.05) in groups 1 and 2 than groups 3 and 5 (control). On the other hand, No difference (LSD, P > 0.05) was detected between the working length in groups 3 and 4 in comparison with group 5 (control).
Conclusion: The electronic apex locator and the cone-beam computed tomography are more accurate techniques to determine root canal's working length than the normal and the 2D digital radiographs.
Mohamed I Elshinawy
Department of Restorative Dental Sciences, College of Dentistry, King Khalid University, PO Box 3263, Abha 61471
|How to cite this article:|
Elshinawy MI. In-vitro comparison of four different working length determination techniques.Tanta Dent J 2017;14:12-16
|How to cite this URL:|
Elshinawy MI. In-vitro comparison of four different working length determination techniques. Tanta Dent J [serial online] 2017 [cited 2023 Jan 31 ];14:12-16
Available from: http://www.tmj.eg.net/article.asp?issn=1687-8574;year=2017;volume=14;issue=1;spage=12;epage=16;aulast=Elshinawy;type=0