Clinical study on the variability in the distance between apical constriction determined by an apex locator and the radiographic apex.
Objective: To determine the variability in the distance between apical constriction determined by an
apex locator and the radiographie apex on digital radiographs in a Moroccan population.
Methods: Once the apex locator indieated 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 lmaging Software
Results: The average distance between the tip of the instrument and the radiographie apex (DTIRA)
was 0.792 mm + 0.61 . The position of the apical constrietion at 0.5 mm of the radiographie apex is in
only 21 % of selected teeth. Ninety eight out of 1 OO teeth had a DR LAAR 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 radiographie apex on digital radiographs in this population. lndeed, the subtraction
of 0.5 mm from the latter, as recommended by several authors, is in only 21% of selected teeth.
Auteur(s) : LEYE BENOIST F, SARR M, BANE K, NDIAYE ML, NDIAYE D, TLEMSANI BENHATTAL G, FAYE B.
Pages : 5-9
Année de publication : 2018
Revue : Turkish Endodontic Journal
N° de volume : 3
Type : Article
Mise en ligne par : SARR Mouhamed