Clinical study on the variability in the distance between apical constriction determined by an apex locator and the radiographic apexFatou Leye Benoist1, Mouhamed Sarr1, Khaly Bane1, Mamadou Lamine Ndiaye2, Diouma Ndiaye1, Ghita Tlemsani Benhattal1, Babacar Faye11Department of Conservative Dentistry and Endodontics, University Cheikh Anta Diop of Dakar, Dakar, Senegal
2Department of Rodiology Dento-maxillofacial, University Cheikh Anta Diop of Dakar, Dakar, Senegal
Objective: To determine the variability in the distance between apical constriction determined by an apex locator and the radiographic apex on digital radiographs in a Moroccan population.
Methods: Once the apex locator indicated the position of the apical constriction marked by 0.5, an existing lime X-ray was taken and measurements were made using the Kodak Dental Imaging Software 6.10.8.3.
Results: The average distance between the tip of the instrument and the radiographic apex (DTIRA) was 0.792 mm + 0.61. The position of the apical constriction at 0.5 mm of the radiographic apex is in only 21% of selected teeth. Ninety eight out of 100 teeth had a DRLAAR of <2 mm. Considering these 98 teeth, 40.8% of them had a DTIRA in the range of 0–0.5 mm, 38.8% in the range of 0.5–1 mm, and 20.4% had DTIRA of >1 mm.
Conclusion: There is a great variability in the distance between the apical constriction determined by an apex locator and the radiographic apex on digital radiographs in this population. Indeed, the subtraction of 0.5 mm from the latter, as recommended by several authors, is in only 21% of selected teeth. Keywords: Dental radiography, root canal preparation; tooth apex.
Fatou Leye Benoist, Mouhamed Sarr, Khaly Bane, Mamadou Lamine Ndiaye, Diouma Ndiaye, Ghita Tlemsani Benhattal, Babacar Faye. Clinical study on the variability in the distance between apical constriction determined by an apex locator and the radiographic apex. Turk Endod J. 2018; 3(1): 5-9
Corresponding Author: Fatou Leye Benoist, Senegal |
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