XP Shaper, A Novel Adaptive Core Rotary Instrument: Micro–computed Tomographic Analysis of Its Shaping Abilities

Root canal preparation in mandibular premolars with TRUShape and Vortex Blue: A micro‐computed tomography study

“…The approach, while using an established MCT workflow, is novel for both its innovative approach to sample alignment and detailed approach to evaluating the parameter ‘canal surface treatment’. The sample size was similar to other MCT‐based investigations . Both systems similarly and significantly increased volume and surface area, and cross‐sectional area and roundness in each root third.…”

“…Recently, NiTi rotary instruments have been introduced that supposedly conform to non‐round cross sections and enhance canal surface preparation. Examples include the Self‐adjusting File (SAF; ReDent‐Nova, Ra'anana, Israel) and, more recently, the TRUShape three‐dimensional (3D) Conforming File (Dentsply Sirona, York, PA, USA) and XP‐Shaper (FKG Dentaire, La Chaux de Fonds, Switzerland) .…”

Substance P and Calcitonin gene‐related peptide expression in human periodontal ligament after root canal preparation with Reciproc Blue, WaveOne Gold, XP EndoShaper and hand files

“…This process could generate more stress to the PDL causing increased neuropeptide release (Azim et al . ). Finally, the swaggering motion of this instrument at 800 rpm could generate turbulence on the irrigant solution (Azim et al .…”

“…Finally, the swaggering motion of this instrument at 800 rpm could generate turbulence on the irrigant solution (Azim et al . , Bayram et al . , Elnaghy & Elsaka , FKG Swiss Endo ), which combined with the instrument elongation could lead to a greater apical extrusion of debris mixed with irrigant solution, and therefore causing more damage to the PDL with the corresponding increase in SP and CGRP levels.…”

“…Additionally, the Booster tip of XP EndoShaper has 6 cutting points allowing the instrument to shape and gradually increased the amplitude of the preparation from a size 15 to a size 30, and to increase the taper from 1% to 4%. This process could generate more stress to the PDL causing increased neuropeptide release (Azim et al 2017). Finally, the swaggering motion of this instrument at 800 rpm could generate turbulence on the irrigant solution (Azim et al 2017, Bayram et al 2017, Elnaghy & Elsaka 2018, FKG Swiss Endo 2017, which combined with the instrument elongation could lead to a greater apical extrusion of debris mixed with irrigant solution, and therefore causing more damage to the PDL with the corresponding increase in SP and CGRP levels.…”