The nickel-titanium files with memory control facilitated the preparation of the root canals, due to their main characteristics being the flexibility and safety resulting from the thermal treatment Memory Control (CM). Objective: The present work identified the useful life of the ProDesign M files until their fracture. Material and methods:The instrumentation was performed in the […]
Instrumentation is a fundamental step in the success of endodontic treatment. For this success to be significant, there must be quality in the shaping procedure and no procedural errors such as deviations, zips, and instrument fractures, which may disadvantage the prognosis. Therefore, this research aimed to compare two manual systems to assess the quality of […]
This study aimed to evaluate, in vitro, the cutting efficiency and time spent for instrumentation of three different heat-treated reciprocating systems in simulated straight canals. Forty-five acrylic blocks with a straight simulated root canal with 21 millimeters in length were initially weighed (P1). After weighing the blocks were divided into three groups (n = 15) […]
The aim of this study was to investigate the effect of additional apical preparation using the ProDesign Logic (PDL) 50/.01 rotary heat-treated nickel-titanium (NiTi) file with a larger diameter and minimal taper for retreatment of curved root canals. Materials and methods: Mesial curved root canals of 12 mandibular molars were prepared using PDL 25/.06 and filled […]
Introdução: a finalidade da instrumentação endodôntica é promover a limpeza e modelagem do canal radicular, preparando para posterior obturação definitiva. Objetivo: o objetivo desse estudo foi avaliar, in vitro, a qualidade da limpeza de blocos de canais simulados, instrumentados por dois sistemas rotatórios de níquel-titânio. Métodos: foram utilizados 20 blocos de acrílico (canais simulados), que foram […]
Aim To evaluate the influence of three engine-driven NiTi file systems manufactured from different NiTi alloys for the preparation of second mesiobuccal (MB2) canals in extracted maxillary first molars using a micro-computed tomographic (micro-CT) scanner. Methodology Thirty maxillary molars with two canals in the mesiobuccal root were selected and randomly divided into three groups (n […]
Aim To evaluate apical transportation and centring ability during root canal preparation in mesial root canals of mandibular molars associated with ProTaper Gold (PTG), ProDesign S (PDS), Hyflex CM (HCM), Hyflex EDM and ProDesign Logic (PDL). Methodology Sixty mandibular first molars with two separate canals in the mesial root were selected after root anatomy pairing […]
Introduction: Endodontic instruments are developed to provide a better cleaning of the root canal system and reduce its risk of fracture. The aim of this study was to evaluate the instrumentation time and cyclic fatigue resistance of WaveOne Gold, ProDesign R and ProDesign Logic files. Methods and Materials: Thirty Nickel-titanium (NiTi) rotary instruments were divided into 3 […]
Objective: To evaluate cyclic fatigue and torsional resistance of Reciproc Blue R25 (VDW, Munich, Germany), WaveOne Gold Primary (Dentsply Maillefer, Ballaigues, Switzerland), ProDesign R (Easy Equipamentos Odontológicos, Belo Horizonte, Brazil), and X1 Blue File (MK Life, Porto Alegre, Brazil) nickel titanium (NiTi) martensite reciprocating instruments. Methods: In each group, ten instruments were tested for cyclic fatigue resistance […]
Objectives To evaluate the cyclic fatigue using severely curved canals and torsional resistance of ProDesign R (Easy Equipamentos Odontológicos, Belo Horizonte, MG, Brazil), Reciproc Blue (VDW, Munich, Germany), and WaveOne Gold (Dentsply Maillefer, Ballaigues, Switzerland) reciprocating instruments. Materials and methods: Twenty instruments of the ProDesign R (25/0.06) system, 20 instruments of the Reciproc Blue (25/0.08v) […]
