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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
#1
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
#2
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
#3
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
#4
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
https://www.readbyqxmd.com/read/27917513/torsional-and-bending-resistance-of-waveone-gold-reciproc-and-twisted-file-adaptive-instruments
#5
S E Elsaka, A M Elnaghy, A E Badr
AIM: To compare the torsional and bending resistance of WaveOne Gold (Dentsply Tulsa Dental Specialties, Tulsa, OK, USA), Reciproc (VDW, Munich, Germany) and Twisted File Adaptive (Axis/SybronEndo, Orange, CA, USA) instruments. METHODOLOGY: Torsional strength of WaveOne Gold primary size 25, .07 taper, Reciproc size 25, .08 taper and Twisted File Adaptive M-L1 size 25, .08 taper was measured by fastening the apical 3 mm of the instrument firmly and applying a constant rotation at 2 rpm to the instrument using a torsiometer...
December 5, 2016: International Endodontic Journal
https://www.readbyqxmd.com/read/27891305/single-file-reciprocating-systems-a-systematic-review-and-meta-analysis-of-the-literature-comparison-of-reciproc-and-waveone
#6
REVIEW
Rana Alsilani, Fatima Jadu, Dania F Bogari, Ahmed M Jan, Turki Y Alhazzazi
The introduction of single-file nickel-titanium (NiTi) reciprocating systems has been a major breakthrough in the field of endodontics. Thus, the aim of this study was to compare the available reciprocating systems, Reciproc and WaveOne, using a meta-analysis with different parameters. A comprehensive electronic literature search for Reciproc and WaveOne using PubMed and Google scholar was initially conducted in September 2014 and updated in September 2016. Inclusion and exclusion criteria were then established...
September 2016: Journal of International Society of Preventive & Community Dentistry
https://www.readbyqxmd.com/read/27843508/influence-of-operator-s-experience-on-the-shaping-ability-of-protaper-universal-and-waveone-systems-a-comparative-study-on-simulated-root-canals
#7
Giuseppe Troiano, Mario Dioguardi, Armando Cocco, Giovanni Giannatempo, Luigi Laino, Domenico Ciavarella, Elio Berutti, Lorenzo Lo Muzio
OBJECTIVE: To assess the influence of operator experience on: shaping and centering ability, mean preparation time and presence of canal aberrations of ProTaper Universal and WaveOne systems on simulated root canals. MATERIALS AND METHODS: Sixty S-shaped canals in resin blocks were assigned to four groups (n=15 for each group). Group1 (Experienced operator, ProTaper), Group2 (Experienced operator, WaveOne), Group3 (Inexperienced operator, ProTaper), Group4 (Inexperienced operator, WaveOne)...
2016: Open Dentistry Journal
https://www.readbyqxmd.com/read/27776886/bending-resistance-and-cyclic-fatigue-life-of-reciproc-unicone-and-waveone-reciprocating-instruments
#8
Emmanuel João Nogueira Leal Silva, Laise Silva Villarino, Victor Talarico Leal Vieira, Thais Accorsi-Mendonça, Henrique Dos Santos Antunes, Gustavo De-Deus, Hélio Pereira Lopes
INTRODUCTION: This study evaluated the bending resistance and cyclic fatigue life of a new single-file reciprocating instrument (Unicone; Medin, Nové Město na Moravě, Czech Republic). Reciproc (VDW, Munich, Germany) and WaveOne (Dentsply Maillefer) instruments were used as references for comparison. METHODS: Flexibility was determined by 45° bending tests using a universal testing machine. The cyclic fatigue test was performed using a custom-made device. For this test, an artificial canal with a 60° angle and a 5-mm radius of curvature was used...
December 2016: Journal of Endodontics
https://www.readbyqxmd.com/read/27770436/effect-of-sodium-hypochlorite-and-saline-on-cyclic-fatigue-resistance-of-waveone-gold-and-reciproc-reciprocating-instruments
#9
A M Elnaghy, S E Elsaka
AIM: To compare the cyclic fatigue resistance of WaveOne Gold (Dentsply Tulsa Dental Specialties, Tulsa, OK, USA) and Reciproc (VDW, Munich, Germany) reciprocating instruments during immersion in sodium hypochlorite (NaOCl) and saline solutions at body temperature. METHODOLOGY: A total of 180 new WaveOne Gold primary size 25, .07 taper, and Reciproc size 25, .08 taper were randomly divided into three groups: group 1: no immersion (control, air); group 2: immersion in saline at 37 ± 1 °C; and group 3: immersion in 5% NaOCl at 37 ± 1 °C...
October 21, 2016: International Endodontic Journal
https://www.readbyqxmd.com/read/27763503/debris-evaluation-after-root-canal-shaping-with-rotating-and-reciprocating-single-file-systems
#10
Alberto Dagna, Giulia Gastaldo, Riccardo Beltrami, Claudio Poggio
This study evaluated the root canal dentine surface by scanning electron microscope (SEM) after shaping with two reciprocating single-file NiTi systems and two rotating single-file NiTi systems, in order to verify the presence/absence of the smear layer and the presence/absence of open tubules along the walls of each sample; Forty-eight single-rooted teeth were divided into four groups and shaped with OneShape (OS), F6 SkyTaper (F6), WaveOne (WO) and Reciproc and irrigated using 5.25% NaOCl and 17% EDTA. Root canal walls were analyzed by SEM at a standard magnification of 2500×...
October 17, 2016: Journal of Functional Biomaterials
https://www.readbyqxmd.com/read/27696455/a-new-method-for-the-assessment-of-the-surface-topography-of-niti-rotary-instruments
#11
F Ferreira, I Barbosa, P Scelza, D Russano, J Neff, M Montagnana, M Zaccaro Scelza
AIM: To describe a new method for the assessment of nanoscale alterations in the surface topography of nickel-titanium endodontic instruments using a high-resolution optical method, and to verify the accuracy of the technique. METHODOLOGY: Noncontact three-dimensional optical profilometry was used to evaluate defects on a size 25, .08 taper reciprocating instrument (WaveOne(®) ), which was subjected to a cyclic fatigue test in a simulated root canal in a clear resin block...
October 1, 2016: International Endodontic Journal
https://www.readbyqxmd.com/read/27616540/changes-in-root-canal-length-determined-during-mechanical-preparation-stages-and-their-relationship-with-the-accuracy-of-root-zx-ii
#12
Bruno Carvalho Vasconcelos, Luzia Mesquista Bastos, Ariany Souza Oliveira, Ricardo Affonso Bernardes, Marco Antonio Hungaro Duarte, Nilton Vivacqua-Gomes, Rodrigo Ricci Vivan
INTRODUCTION: The aim of this study was to determine the variations in root canal length (RCL) occurring during endodontic treatment stages (initial, preflared, and concluded) and correlate them with the accuracy of Root ZX II (RZX). METHODS: After coronal access, 26 mandibular molars had the apical foramen of the 52 mesial canals standardized (250 μm) and their respective initial RCL was recorded (RCL1 = initial) by using a clinical microscope (×16) and manual K-file instruments...
November 2016: Journal of Endodontics
https://www.readbyqxmd.com/read/27564995/antimicrobial-activity-of-photodynamic-therapy-against-enterococcus-faecalis-before-and-after-reciprocating-instrumentation-in-permanent-molars
#13
Sérgio Luiz Pinheiro, Giuliana Rodrigues Azenha, Yasmin Marialva Democh, Daniela Camila Nunes, Silvia Provasi, Giovana Masiero Fontanetti, Danilo Antônio Duarte, Carlos Eduardo Fontana, Carlos Eduardo da Silveira Bueno
OBJECTIVE: The present study sought to evaluate the antimicrobial activity against Enterococcus faecalis of photodynamic therapy applied before and after reciprocating instrumentation of permanent molars. BACKGROUND: Apical extrusion of debris can cause flare-ups due to introduction of bacteria into the periapical tissues. METHODS: Eighteen mesial roots from permanent mandibular molars were selected. The crowns were removed to obtain a standard root length of 15 mm...
December 2016: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/27563189/ultrasonic-versus-sonic-activation-of-the-final-irrigant-in-root-canals-instrumented-with-rotary-reciprocating-files-an-in-vitro-scanning-electron-microscopy-analysis
#14
Neha Deepak Khalap, Sharad Kokate, Vibha Hegde
AIM: To compare the smear layer and debris removal in root canals instrumented with two different kinematic motions after ultrasonic and sonic irrigation activation. MATERIALS AND METHODS: Eighty freshly extracted teeth were selected for the study and randomly divided the samples into two groups (n = 40) for instrumentation with either rotary ProTaper NEXT (PTN) or reciprocating WaveOne (WO) file systems. These (n = 40) were further divided into two groups (n = 20) where the final irrigant was activated using either Ultrasonics (Passive Ultrasonic Irrigation; PUI) or Sonics (EndoActivator; EA)...
July 2016: Journal of Conservative Dentistry: JCD
https://www.readbyqxmd.com/read/27563177/influence-of-three-ni-ti-cleaning-and-shaping-files-on-postinstrumentation-endodontic-pain-a-triple-blinded-randomized-controlled-trial
#15
Jogikalmat Krithikadatta, Vadhana Sekar, Paramanantham Sudharsan, Natanasabapathy Velumurugan
AIM: This randomized, controlled trial evaluated the incidence of postinstrumentation pain on using two different rotary Ni-Ti and one reciprocating Ni-Ti cleaning and shaping systems. MATERIALS AND METHODS: Asfter sample size estimation, a total of 152 patients were randomized to three groups (Group WO [WaveOne], Group PU [ProTaper Universal], and Group Mt [Mtwo]). Selection of patients was based on root curvature, periapical lesion, vitality, gender, and diagnosis of the patient...
July 2016: Journal of Conservative Dentistry: JCD
https://www.readbyqxmd.com/read/27556200/the-impact-of-clinical-use-on-the-torsional-behavior-of-reciproc-and-waveone-instruments
#16
Rafael Rodrigues Soares de Magalhães, Lígia Carolina Moreira Braga, Érika Sales Joviano Pereira, Isabella Faria da Cunha Peixoto, Vicente Tadeu Lopes Buono, Maria Guiomar de Azevedo Bahia
OBJECTIVE: The aim of this study was to assess the influence of clinical use, in vivo, on the torsional behavior of Reciproc and WaveOne instruments considering the possibility that they degraded with use. MATERIAL AND METHODS: Diameter at each millimeter, pitch length, and area at 3 mm from the tip were determined for both types of instruments. Twenty-four instruments, size 25, 0.08 taper, of each system were divided into two groups (n=12 each): Control Group (CG), in which new Reciproc (RC) and WaveOne Primary (WO) instruments were tested in torsion until rupture based on ISO 3630-1; and Experimental Group (EG), in which each new instrument was clinically used to clean and shape the root canals of one molar...
July 2016: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/27520406/cyclic-fatigue-resistance-of-reciproc-waveone-and-waveone-gold-nickel-titanium-instruments
#17
Taha Özyürek
INTRODUCTION: The purpose of this study was to compare the cyclic fatigue resistance of Reciproc R25 (VDW, Munich, Germany), WaveOne Primary (Dentsply Maillefer, Ballaigues, Switzerland), and WaveOne Gold Primary files (Dentsply Maillefer). METHODS: Twenty Reciproc R25, 20 WaveOne Primary, and 20 WaveOne Gold Primary instruments were included in this study. The cyclic fatigue tests were performed using a cyclic fatigue testing device, which has an artificial stainless steel canal with a 60° angle of curvature and a 5-mm radius of curvature...
October 2016: Journal of Endodontics
https://www.readbyqxmd.com/read/27508158/preference-of-undergraduate-students-after-first-experience-on-nickel-titanium-endodontic-instruments
#18
Sang Won Kwak, Gary Shun-Pan Cheung, Jung-Hong Ha, Sung Kyo Kim, Hyojin Lee, Hyeon-Cheol Kim
OBJECTIVES: This study aimed to compare two nickel-titanium systems (rotary vs. reciprocating) for their acceptance by undergraduate students who experienced nickel-titanium (NiTi) instruments for the first time. MATERIALS AND METHODS: Eighty-one sophomore dental students were first taught on manual root canal preparation with stainless-steel files. After that, they were instructed on the use of ProTaper Universal system (PTU, Dentsply Maillefer), then the WaveOne (WO, Dentsply Maillefer)...
August 2016: Restorative Dentistry & Endodontics
https://www.readbyqxmd.com/read/27471537/shaping-ability-of-single-file-systems-with-different-movements-a-micro-computed-tomographic-study
#19
Joedy Santa-Rosa, Manoel Damião de Sousa-Neto, Marco Aurelio Versiani, Giselle Nevares, Felipe Xavier, Kaline Romeiro, Marcely Cassimiro, Graziela Bianchi Leoni, Rebeca Ferraz de Menezes, Diana Albuquerque
INTRODUCTION: This study aimed to perform a rigorous sample standardization and also evaluate the preparation of mesiobuccal (MB) root canals of maxillary molars with severe curvatures using two single-file engine-driven systems (WaveOne with reciprocating motion and OneShape with rotary movement), using micro-computed tomography (micro-CT). METHODS AND MATERIALS: Ten MB roots with single canals were included, uniformly distributed into two groups (n=5). The samples were prepared with a WaveOne or OneShape files...
2016: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/27430943/residual-microstrain-in-root-dentin-after-canal-instrumentation-measured-with-digital-moir%C3%A3-interferometry
#20
Helena Lim, Fang-Chi Li, Shimon Friedman, Anil Kishen
INTRODUCTION: Residual microstrain influences the resistance to crack propagation in a biomaterial. This study evaluated the residual microstrain and microdefects formed in dentin after canal instrumentation in teeth maintained in hydrated and nonhydrated environments. METHODS: Canals of 18 extracted human premolars with single-root canals were instrumented in accordance with 3 groups: the ProTaper Universal (Dentsply Maillefer, Ballaigues, Switzerland) group: ProTaper Universal (S1, S2, F1, and F2) used in rotation, the WaveOne Primary (Dentsply Maillefer) group: the WaveOne (Primary) used in reciprocal motion, and the control group: hand files...
September 2016: Journal of Endodontics
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