title: Centering Ability of ProTaper Next and WaveOne Classic in J-Shape Simulated Root Canals.
abstract: Introduction. The aim of this study was to evaluate and compare the shaping and centering ability of ProTaper Next (PTN; Dentsply Maillefer, Ballaigues, Switzerland) and WaveOne Classic systems (Dentsply Maillefer) in simulated root canals.Methods. Forty J-shaped canals in resin blocks were assigned to two groups (n= 20 for each group). Photographic method was used to record pre- and postinstrumentation images. After superimposition, centering and shaping ability were recorded at 9 different levels from the apex using the software Autocad 2013 (Autodesk Inc., San Rafael, USA).Results. Shaping procedures with ProTaper Next resulted in a lower amount of resin removed at each reference point level. In addition, the pattern of centering ability improved after the use of ProTaper Next in 8 of 9 measurement points.Conclusions. Within the limitations of this study, shaping procedures with ProTaper Next instruments demonstrated a lower amount of resin removed and a better centering ability than WaveOne Classic system.
authors.affiliation: Department of Clinical and Experimental Medicine, Foggia University, Foggia, Italy.
authors.forename: Giuseppe
authors.identifier: 0000-0001-5647-4414
authors.initials: G
authors.lastname: Troiano
authors.affiliation: Department of Clinical and Experimental Medicine, Foggia University, Foggia, Italy.
authors.forename: Mario
authors.initials: M
authors.lastname: Dioguardi
authors.affiliation: Department of Clinical and Experimental Medicine, Foggia University, Foggia, Italy.
authors.forename: Armando
authors.initials: A
authors.lastname: Cocco
authors.affiliation: Department of Clinical and Experimental Medicine, Foggia University, Foggia, Italy.
authors.forename: Michele
authors.initials: M
authors.lastname: Giuliani
authors.affiliation: Department of Clinical and Experimental Medicine, Foggia University, Foggia, Italy.
authors.forename: Cristiano
authors.initials: C
authors.lastname: Fabiani
authors.affiliation: Department of Clinical and Experimental Medicine, Foggia University, Foggia, Italy.
authors.forename: Alfonso
authors.initials: A
authors.lastname: D'Alessandro
authors.affiliation: Department of Clinical and Experimental Medicine, Foggia University, Foggia, Italy.
authors.forename: Domenico
authors.initials: D
authors.lastname: Ciavarella
authors.affiliation: Department of Clinical and Experimental Medicine, Foggia University, Foggia, Italy.
authors.forename: Lorenzo
authors.identifier: 0000-0003-4633-4893
authors.initials: L
authors.lastname: Lo Muzio
mesh_terms: D003786:Dental Pulp Cavity; D012117:Resins, Synthetic; D018915:Root Canal Preparation / Q000295:instrumentation*
chemical_list: D012117:Resins, Synthetic