title: Efficacy of Twisted File Adaptive, Reciproc and ProTaper Universal Retreatment instruments for root-canal-filling removal: A cone-beam computed tomography study.
abstract: The aim of this study was to evaluate the efficacy of Twisted File (TF) Adaptive, Reciproc, and ProTaper Universal Retreatment (UR) System instruments for removing root-canal-filling. Sixty single rooted teeth were decoronated, instrumented and obturated. Preoperative CBCT scans were taken and the teeth were retreated with TF Adaptive, Reciproc, ProTaper UR, or hand files (n=15). Then, the teeth were rescanned, and the percentage volume of the residual root-canal-filling material was established. The total time for retreatment was recorded, and the data was statistically analyzed. The statistical ranking of the residual filling material volume was as follows: hand file=TF Adaptive>ProTaper UR=Reciproc. The ProTaper UR and Reciproc systems required shorter periods of time for retreatment. Root canal filling was more efficiently removed by using Reciproc and ProTaper UR instruments than TF Adaptive instruments and hand files. The TF Adaptive system was advantageous over hand files with regard to operating time.
authors.affiliation: Department of Endodontics, Faculty of Dentistry, Necmettin Erbakan University.
authors.forename: Makbule Bilge
authors.initials: MB
authors.lastname: Akbulut
authors.forename: Melek
authors.initials: M
authors.lastname: Akman
authors.forename: Arslan
authors.initials: A
authors.lastname: Terlemez
authors.forename: Guldane
authors.initials: G
authors.lastname: Magat
authors.forename: Sevgi
authors.initials: S
authors.lastname: Sener
authors.forename: Heeresh
authors.initials: H
authors.lastname: Shetty
mesh_terms: D054893:Cone-Beam Computed Tomography; D003762:Dental Instruments; D004867:Equipment Design; D006171:Gutta-Percha; D006801:Humans; D066298:In Vitro Techniques; D015203:Reproducibility of Results; D019233:Retreatment; D012387:Root Canal Filling Materials; D012389:Root Canal Obturation / Q000295:instrumentation*; D007507:Therapeutic Irrigation
chemical_list: D012387:Root Canal Filling Materials; D006171:Gutta-Percha