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https://www.readbyqxmd.com/read/28435364/influence-of-reuse-and-cervical-preflaring-on-the-fracture-strength-of-reciprocating-instruments
#1
Claudio Maniglia-Ferreira, Fabio de Almeida Gomes, Tatyana Ximenes, Murilo Alves Teixeira Neto, Thiane Elys Arruda, Giovani Gonçalves Ribamar, Luis Flávio Gaspar Herculano
OBJECTIVE: This study sought to assess the influence of cervical preflaring and reuse after resterilization, on fracture strength and plastic deformation and/or surface cracking in reciprocating nickel-titanium [NiTi] endodontic instruments after root canal instrumentation of extracted human teeth. MATERIALS AND METHODS: Forty engine-driven reciprocating NiTi instruments (20 Reciproc(®) [RC], VDW; 20 WaveOne(®) [WO], Dentsply) were used in root canal instrumentation of extracted human molars...
January 2017: European Journal of Dentistry
https://www.readbyqxmd.com/read/28416307/the-efficacy-of-the-waveone-reciprocating-file-system-versus-the-protaper-retreatment-system-in-endodontic-retreatment-of-two-different-obturating-techniques
#2
Ben Jorgensen, Anne Williamson, Rene Chu, Fang Qian
INTRODUCTION: This ex vivo study aimed to evaluate the efficacy of retreating GuttaCore (Dentsply Tulsa Dental Specialties, Tulsa, OK) and warm vertically condensed gutta-percha in moderately curved canals with 2 different systems: ProTaper Universal Retreatment (Dentsply Tulsa Dental) and WaveOne (Dentsply Tulsa Dental). METHODS: Eighty mesial roots of mandibular molars were used in this study. The mesiobuccal canals in each sample were prepared to length with the WaveOne Primary file (Dentsply Tulsa Dental)...
April 14, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28383607/efectiveness-of-the-waveone-and-protaper-d-systems-for-removing-gutta-percha-with-or-without-a-solvent
#3
Ana Pm Colombo, Carlos E Fontana, Aline Godoy, Alexandre S De Martin, Augusto S Kato, Daniel Gp Rocha, Rina A Pelegrine, Carlos Es Bueno
Endodontic retreatment requires complete removal of the filling material and access to the apical foramen. The purpose of this study was to evaluate the effectiveness of the Wave One reciprocating system and compare it to the ProTaper D rotarysystem, with or without the use of a solvent, in removing filling material from root canals. The time required for each filling removal technique employed was also determined and compared. Forty extracted human mandibular premolars with a single, straight, flattened canal were prepared and filled...
December 2016: Acta Odontológica Latinoamericana: AOL
https://www.readbyqxmd.com/read/28357000/root-canal-transportation-and-centering-ability-of-nickel-titanium-rotary-instruments-in-mandibular-premolars-assessed-using-cone-beam-computed-tomography
#4
Iussif Mamede-Neto, Alvaro Henrique Borges, Orlando Aguirre Guedes, Durvalino de Oliveira, Fábio Luis Miranda Pedro, Carlos Estrela
INTRODUCTION: The aim of this study was to evaluate, using cone-beam computed tomography (CBCT), transportation and centralization of different nickel-titanium (NiTi) rotary instruments. METHODS: One hundred and twenty eight mandibular premolars were selected and instrumented using the following brands of NiTi files: WaveOne, WaveOne Gold, Reciproc, ProTaper Next, ProTaper Gold, Mtwo, BioRaCe and RaCe. CBCT imaging was performed before and after root canal preparation to obtain measurements of mesial and distal dentin walls and calculations of root canal transportation and centralization...
2017: Open Dentistry Journal
https://www.readbyqxmd.com/read/28349903/presence-of-metallic-microfragments-on-dentinal-walls-and-instrument-defects-following-root-canal-preparation
#5
Caroline Solda, Marina C Langaro, Alessandra N Machado, José R Vanni, Daniel de A Decurcio, Julio A Silva, Carlos Estrela, Fernando B Barletta
AIM: To determine the presence of metallic microfragments and their elemental composition in the dentinal walls of root canals following preparation using different endodontic instruments and to assess the active cutting edges of instruments with regard to structural defects. MATERIALS AND METHODS: A total of 108 molar teeth were selected and prepared using different endodontic instruments. Teeth were randomly divided into nine groups of 12 teeth each, according to the instruments employed: Manual systems -K-FlexoFile, K-File, and Hedstroem; rotary systems - ProTaper Next, Mtwo, BioRaCe; and reciprocating systems - Reciproc, Unicone, and WaveOne...
April 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28343932/fracture-incidence-of-waveone-and-reciproc-files-during-root-canal-preparation-of-up-to-3-posterior-teeth-a-prospective-clinical-study
#6
Clóvis Stephano Pereira Bueno, Daniel Pinto de Oliveira, Rina Andrea Pelegrine, Carlos Eduardo Fontana, Daniel Guimarães Pedro Rocha, Carlos Eduardo da Silveira Bueno
INTRODUCTION: Reciprocating instruments were developed to improve and simplify the preparation of the root canal system by allowing greater centralization of the canal and requiring a shorter learning curve. Despite the risk of instrument separation, using a reciprocating instrument in more than 1 case is a relatively common clinical practice. The aim of this study was to evaluate the fracture resistance of Reciproc (R25; VDW, Munich, Germany) and WaveOne (Primary; Dentsply Maillefer, Ballaigues, Switzerland) instruments according to the number of uses during the preparation of root canals in up to 3 posterior teeth...
March 23, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28302945/the-incidence-of-dentinal-cracks-during-root-canal-preparations-with-reciprocating-single-file-and-rotary-file-systems-a-meta-analysis
#7
Xi Wei, Bo Hu, Haiyang Peng, Ming Tang, Jinlin Song
As a dangerous factor in vertical root fracture, dentinal crack formation is often associated with root canal instruments. We conducted this meta-analysis to compare the influence of two types of nickel titanium (NiTi) instruments that have different movements (reciprocating single-file versus full-sequence rotary file systems) on dentinal cracks formation during root canal preparation. Searches were conducted in PubMed, ISI Web of Knowledge, Embase and Cochrane Library using a combination of keywords. Titles and abstracts of all articles were independently assessed by two reviewers in accordance with the predefined inclusion criteria...
March 8, 2017: Dental Materials Journal
https://www.readbyqxmd.com/read/28298976/wear-of-the-primary-waveone-single-file-when-shaping-vestibular-root-canals-of-first-maxillary-molar
#8
Daniel Aracena, Eduardo Borie, Pablo Betancourt, Angella Aracena, Mario Guzmán
BACKGROUND: It is very important for a clinician to know the increased wear of mechanized files when establishing endodontic therapy. The aim of this study was to check the wear of the Primary WaveOne file upon shaping two, four and six maxillary molar vestibular canals. MATERIAL AND METHODS: The deterioration of 40 files, divided into four groups, was evaluated microscopically: group 1, control (unused); group 2, two canals; group 3, four canals; and group 4, six canals...
March 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28292599/shaping-ability-of-reciproc-waveone-gold-and-hyflex-edm-single-file-systems-in-simulated-s-shaped-canals
#9
Taha Özyürek, Koray Yılmaz, Gülşah Uslu
INTRODUCTION: The aim of the present study was to compare the shaping ability of Reciproc (RPC; VDW, Munich, Germany), HyFlex EDM (HEDM; Coltene/Whaledent AG, Altstätten, Switzerland), and WaveOne GOLD (WOG; Dentsply Maillefer, Ballaigues, Switzerland) nickel-titanium (NiTi) files made of different NiTi alloys in S-shaped simulated canals. METHODS: Sixty S-shaped canals in resin blocks were prepared to an apical size of 0.25 mm using RPC R25, WOG Primary, and HEDM OneFile (n = 20 canal/per group) systems...
March 11, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28258264/flute-and-shank-dimensions-of-reciprocating-instruments-before-and-after-simulated-root-canal-shaping
#10
Felipe C Sampaio, Ana Pp Brito, Heloisa Hp Veloso, Ana Hg de Alencar, Daniel de A Decurcio, José Ap de Figueiredo, Carlos Estrela
AIM: This study analyzed the effect of the dimensions of the flute and shank in the first 4 mm of instrument tips on the deformation and dimensional changes of reciprocating instruments after root canal shaping (RCS). MATERIALS AND METHODS: The reciprocating instruments used were Reciproc(®) R25, R40, and R50; WaveOne(®) Small, Primary, and Large; and Unicone(®) #20, #25, and #40. Scanning electron microscopy images of the first 4 mm of the tip were acquired at 30× magnification before and after simulated curved root canals were shaped...
March 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28256485/evaluation-of-various-filling-techniques-in-distal-canals-of-mandibular-molars-instrumented-with-different-single-file-nickel-titanium-systems
#11
A Dumani, S Yilmaz, O Yoldas, C Kuden
BACKGROUND AND AIMS: The aim of this study was to evaluate the quality of various filling techniques in distal canals of mandibular molars instrumented with different single-file nickel-titanium (NiTi) systems. MATERIALS AND METHODS: A total of 150 distal roots of mandibular molar teeth were randomly assigned into three main groups and instrumented by using Reciproc (VDW, Munich, Germany), WaveOne (Dentsply Tulsa, Tulsa, OK, USA), or One Shape (MicroMega, Besancon, France) NiTi file systems...
March 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/28243300/comparison-of-apical-extrusion-of-debris-by-using-single-file-full-sequence-rotary-and-reciprocating-systems
#12
Maryam Ehsani, Robab Farhang, Azadeh Harandi, Saeid Tavanafar, Maryam Raoof, Saeedeh Galledar
OBJECTIVES: During root canal preparation, apical extrusion of debris can cause inflammation, flare-ups, and delayed healing. Therefore, instrumentation techniques that cause the least extrusion of debris are desirable. This study aimed to compare apical extrusion of debris by five single-file, full-sequence rotary and reciprocating systems. MATERIALS AND METHODS: One hundred twenty human mandibular premolars with similar root lengths, apical diameters, and canal curvatures were selected and randomly assigned to six groups (n=20): Reciproc R25 (25, 0...
November 2016: Journal of Dentistry of Tehran University of Medical Sciences
https://www.readbyqxmd.com/read/28216272/comparison-of-cyclic-fatigue-resistance-of-waveone-and-waveone-gold-small-primary-and-large-instruments
#13
Mehmet Adıgüzel, Ismail Davut Capar
INTRODUCTION: To compare the cyclic fatigue of resistance of WaveOne (WO; Dentsply Maillefer, Ballaigues, Switzerland) and WaveOne Gold (WOG, Dentsply Maillefer) small, primary, and large instruments in simulated root canals. Each instrument was rotated until fracture occurred. METHODS: One hundred twenty nickel-titanium endodontic instruments were tested in two different curved artificial canals with different angles and radii of curvatures. WO and WOG small, primary, and large instruments were evaluated (n = 10 for each curvature)...
April 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28203008/-effects-of-different-techniques-on-removal-of-vapor-lock-in-the-apical-region-of-curved-canals-a-cone-beam-computed-tomography-study
#14
Z Su, Y H Bai, X M Hou
OBJECTIVE: To compare the effect of four different techniques on removal of vapor lock in the apical region of curved root canals. METHODS: Forty simulated resin root canals with 45° curvature were prepared using WaveOne Primary, then the apical foramen were sealed with soft wax. The teeth were divided randomly into 4 groups thereafter (n=10). Contract solution was injected into the canals using a 30 G side-vented needle and scanned with cone-beam CT (CBCT) to identify the volume of the vapor lock...
February 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28179921/in-vitro-comparison-of-apical-debris-extrusion-using-rotary-and-reciprocating-systems-in-severely-curved-root-canals
#15
Abbas Delvarani, Nahid Mohammadzadeh Akhlaghi, Raana Aminirad, Sohrab Tour Savadkouhi, Seyed Aliakbar Vahdati
INTRODUCTION: The aim of this in vitro study was to compare the amount of apically extruded debris after root canal preparation using rotary and reciprocating systems in severely curved root canals. METHODS AND MATERIALS: Thirty six extracted human mandibular first molars with 25-35(°) curvature in their mesiobuccal (MB) canal (according to Schneider's method) were cleaned and shaped with ProTaper and WaveOne systems. The extruded debris was collected and their net weight was calculated...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28131416/effects-of-6-single-file-systems-on-dentinal-crack-formation
#16
Eugenio Pedullà, Francesco Genovesi, Silvia Rapisarda, Giusy R M La Rosa, Nicola M Grande, Gianluca Plotino, Carlos G Adorno
INTRODUCTION: The purpose of this study was to compare the formation of microcracks after canal preparation performed with different single-file systems as One Shape (Micro-Mega, Besancon, Cedex, France), F6 SkyTaper (Komet Italia Srl, Milan, Italy), HyFlex EDM (Coltene/Whaledent AG, Altstatten, Switzerland), WaveOne (Dentsply Maillefer, Ballaigues, Switzerland), Reciproc (VDW, Munich, Germany), and WaveOne Gold (Dentsply Maillefer). METHODS: Eighty-four human extracted mandibular central incisors (40-60 y) were selected and divided into 6 experimental groups (n = 12 teeth) and a control group (unprepared teeth): One Shape (group 1), F6 SkyTaper (group 2), HyFlex EDM (group 3), WaveOne (group 4), Reciproc (group 5), and WaveOne Gold (group 6)...
March 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/27994323/shaping-ability-of-reciprocating-motion-of-waveone-and-hyflex-in-moderate-to-severe-curved-canals-a-comparative-study-with-cone-beam-computed-tomography
#17
Gurram Samuel Simpsy, Girija S Sajjan, Padmaja Mudunuri, Jyothi Chittem, Nalam N V D Prasanthi, Pankaj Balaga
INTRODUCTION: M-Wire and reciprocating motion of WaveOne and controlled memory (CM) wire) of HyFlex were the recent innovations using thermal treatment. Therefore, a study was planned to evaluate the shaping ability of reciprocating motion of WaveOne and HyFlex using cone beam computed tomography (CBCT). METHODOLOGY: Forty-five freshly extracted mandibular teeth were selected and stored in saline until use. All teeth were scanned pre- and post-operatively using CBCT (Kodak 9000)...
November 2016: Journal of Conservative Dentistry: JCD
https://www.readbyqxmd.com/read/27986098/the-effects-of-torsional-preloading-on-the-torsional-resistance-of-nickel-titanium-instruments
#18
Seung-Hei Oh, Jung-Hong Ha, Sang Won Kwak, Shin Wook Ahn, WooCheol Lee, Hyeon-Cheol Kim
INTRODUCTION: This study evaluated the effect of torsional preloading on the torsional resistance of nickel-titanium (NiTi) endodontic instruments. METHODS: WaveOne Primary (Dentsply Maillefer, Ballaigues, Switzerland) and ProTaper Universal F2 (Dentsply Maillefer) files were used. The ultimate torsional strength until fracture was determined for each instrument. In the phase 1 experiment, the ProTaper and WaveOne files were loaded to have a maximum load from 2...
January 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/27965498/shaping-ability-of-protaper-next-waveone-and-reciproc-in-simulated-root-canals
#19
E M Maia Filho, R M Dos Reis Santos, Darlon M Lima, S M da Silva Pereira, Janir A Soares, R R de Jesus Tavarez, Meire C Ferreira, Ceci N Carvalho, Matheus C Bandeca, Mateus R Tonetto, Alvaro H Borges, C de Castro Rizzi
INTRODUCTION: The study aimed to compare the shaping and preservation of the original curvature of simulated curved root canals using the following instruments: Reciproc (Rcp), WaveOne (Wo), and the ProTaper Next system (Ptn). MATERIALS AND METHODS: A total of 45 resin blocks with simulated curved root canals were divided into three groups (n = 15), prepared using the Rcp (R25), Wo (25/0.8), and Ptn (X2) instruments. Standardized photographs were taken before and after canal instrumentation...
November 1, 2016: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/27957398/multiple-file-vs-single-file-endodontics-in-dental-practice-a-study-in-routine-care
#20
Andreas Bartols, Gunter Laux, Winfried Walther
BACKGROUND: Little is known about the differences of rotary multiple file endodontic therapy and single-file reciprocating endodontic treatment under routine care conditions in dental practice. This multicenter study was performed to compare the outcome of multiple-file (MF) and single-file (SF) systems for primary root canal treatment under conditions of general dental practice regarding reduction of pain with a visual analogue scale (VAS 100), improvement of oral-health-related quality of life (OHRQoL) with the german short version of the oral health impact profile (OHIP-G-14) and the speed of root canal preparation...
2016: PeerJ
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