Author/Authors :
Naseri، Mandana نويسنده Department of Endodontic, Dental Research Center of Shahid Beheshti University of Medical Science, Tehran, Iran , , Paymanpour، Payam نويسنده Department of Endodontics , , Kangarloo، Ali نويسنده , , Haddadpur، Sahar نويسنده Department Orthodontics, , , , Dianat، Seyed Omid نويسنده , , Ketabi، Mohammad Ali نويسنده Department of Endodontics, Dental School, Aja University of Medical Sciences, Tehran, Iran Ketabi, Mohammad Ali
Abstract :
Background: The aim of this study was to evaluate apical transportation and centering ability of
single-file instruments, WaveOne primary, with full rotation versus reciprocation movement using
cone-beam computed tomography (CBCT) analysis in curved mesiobuccal (MB) root canal of
human mandibular molars.
Materials and Methods: Thirty MB canals of mandibular molars were randomly divided into
two groups according to the instrument motion (n = 15): Group 1, reciprocation/WaveOne
primary; Group 2, continuous rotation/WaveOne primary. After preparation, the amount of apical
transportation and centering ability were assessed by evaluating pre- and post-instrumentation
CBCT scans in three section (1, 3, and 5 mm from apical foramen). Statistical analysis of the data
was performed using Mann-Whitney U-test and Friedman test (? = 0.05).
Results: There was no statistically significant difference between two experimental groups in
terms of apical transportation and centering ratio at 1, 3, and 5 mm from apical foramen (P > 0.05).
Conclusion: Apical transportation and centering ability of WaveOne primary reciprocating
instrument did not significantly differ between two motion patterns.
