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https://www.readbyqxmd.com/read/29238411/ex-vivo-smear-layer-removal-efficacy-of-two-activated-irrigation-techniques-after-reciprocating-instrumentation-in-curved-canals
#1
Tamara Costa Lopes Schiavotelo, Marcelo Santos Coelho, Luis Cardoso Rasquin, Daniel Guimarães Pedro Rocha, Carlos Eduardo Fontana, Carlos Eduardo da Silveira Bueno
Introduction: This study aimed to compare the effectiveness of two activated irrigation techniques in removing the smear layer after single-file reciprocating instrumentation in curved canals. Materials and Methods: Sixty distobuccal roots of maxillary molars were standardized to create a closed system, and then instrumented using WaveOne Primary (Dentsply Maillefer, Ballaigues, Switzerland) instruments. Fifty-four specimens were randomly distributed into 3 groups for final irrigation: Non-activated irrigation, passive ultrasonic irrigation (PUI), and EndoActivator (EA;Dentsply Maillefer, Tulsa, USA) irrigation...
2017: Open Dentistry Journal
https://www.readbyqxmd.com/read/29225643/cyclic-fatigue-resistance-of-waveone-gold-prodesign-r-and-prodesign-logic-files-in-curved-canals-in-vitro
#2
Sílvio Emanuel Acioly Conrado de Menezes, Shirley Machado Batista, Juliana Ouro Preto Lira, Gabriela Queiroz de Melo Monteiro
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 groups (n=10). ProDesign Logic file 25/0.06 was used in continuous rotation after glide path preparation...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/29225641/foramen-changes-following-over-instrumentation-of-curved-canals-with-three-engine-driven-instruments-an-in-vitro-study
#3
Salwa Yammine, Edgard Jabbour, Paul Nahas, Zeina Majzoub
Introduction: The present in vitro study aimed to evaluate and compare the changes in shape and surface area of the major foramen following shaping of curved canals with three new generation NiTi engine-driven instruments naming ProTaper Next, BT RaCe and WaveOne Gold- with 3 different levels of protrusion beyond the major apical foramen. Methods and Materials: A total of 45 extracted human molars with at least one curved canal were distributed in 3 comparable groups of 15 that were instrumented using either ProTaper Next (PTN), BT RaCe (BTR) or WaveOne Gold (WOG)...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/29224061/cyclic-fatigue-and-torsional-strength-of-three-different-thermally-treated-reciprocating-nickel-titanium-instruments
#4
Murilo Priori Alcalde, Marco Antonio Hungaro Duarte, Clovis Monteiro Bramante, Bruno Carvalho de Vasconselos, Mario Tanomaru-Filho, Juliane Maria Guerreiro-Tanomaru, Jader Carvalho Pinto, Marcus Vinicius Reis Só, Rodrigo Ricci Vivan
OBJECTIVES: The aim of this study was to evaluate the cyclic and torsional fatigue resistance of the reciprocating single-file systems Reciproc Blue 25.08 (VDW GmbH, Munich, Germany), Prodesign R 25.06 (Easy Dental Equipment, Belo Horizonte, Brazil), and WaveOne Gold 25.07 (Dentsply/Tulsa Dental Specialties, Tulsa, OK, USA). MATERIALS AND METHODS: Sixty reciprocating instruments of the systems Reciproc Blue R25 (RB #25 .08 taper), Prodesign R (PDR #25 .06 taper), and WaveOne Gold (WOG #25 ...
December 9, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29211126/effect-of-reciprocating-systems-and-working-lengths-on-apical-microcrack-development-a-micro-ct-study
#5
Bruna Paloma de Oliveira, Andréa Cruz Câmara, Daniel Amancio Duarte, Richard John Heck, Antonio Celso Dantas Antonino, Carlos Menezes Aguiar
The objective of this study was to evaluate the effect of root canal preparation with single-file reciprocating systems at different working lengths on the development of apical microcracks using micro-computed tomographic (micro-CT) imaging. Forty extracted human mandibular incisors were randomly assigned to 4 groups (n=10) according to the systems and working length used to prepare the root canals: Group A - WaveOne Gold at apical foramen (AF), Group B - WaveOne Gold 1 mm short of the AF (AF-1 mm), Group C - Unicone (AF) and Group D - Unicone (AF-1 mm)...
November 2017: Brazilian Dental Journal
https://www.readbyqxmd.com/read/29208400/influence-of-cervical-preflaring-on-the-incidence-of-root-dentin-defects
#6
Álvaro Henrique Borges, Monique Sobral Damião, Thiago Machado Pereira, Gilberto Siebert Filho, Fabio Luis Miranda-Pedro, Welligton Luiz de Oliveira da Rosa, Evandro Piva, Orlando Aguirre Guedes
INTRODUCTION: This study evaluated the influence of cervical preflaring on the incidence of root dentin defects after root canal preparation. METHODS: Extracted human maxillary central incisors were selected and allocated to 1 control group and 12 experimental groups (n = 15). Teeth in the control group were left unprepared, whereas the others were prepared using 2 reciprocating single-file systems (Reciproc and WaveOne [WO]), 3 full-sequence rotary systems (ProTaper Universal, ProTaper Next [PTN], and ProFile), and K-files driven by an oscillatory system, with and without cervical preflaring...
December 2, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/29203073/effect-of-the-glide-path-establishment-on-the-torque-generation-to-the-files-during-instrumentation-an-in%C3%A2-vitro-measurement
#7
Sang Won Kwak, Jung-Hong Ha, Gary Shun-Pan Cheung, Hyeon-Cheol Kim, Sung Kyo Kim
INTRODUCTION: The purpose of this study was to compare in vitro torque generation during instrumentation with or without glide path establishment. METHODS: Endo-training resin blocks with J-shaped canals were randomly divided into 2 groups according to glide path establishment (with or without) and subdivided into 2 subgroups with shaping instruments (WaveOne [Dentsply Maillefer, Ballaigues, Switzerland] or WaveOne Gold [Dentsply Maillefer]) (n = 15). For the glide path-established group, the glide path was prepared using ProGlider (Dentsply Maillefer)...
December 1, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/29160398/topographic-and-chemical-analysis-of-reciprocating-and-rotary-instruments-surface-after-continuous-use
#8
Mariana Mena Barreto Bastos, Aida Rene Assayag Hanan, Ana Mena Barreto Bastos, André Augusto Franco Marques, Lucas da Fonseca Roberti Garcia, Emílio Carlos Sponchiado
This study aimed at evaluating the changes in surface characteristics and NiTi content of reciprocating and rotary instruments after continuous use. Thirty brand-new instruments were assigned to 3 groups (n=10): PNX1 Group - ProTaper Next system - instrument X1; PNX2 Group - ProTaper Next system - instrument X2 and WO Group - WaveOne system - Primary instrument 25.08. The instruments were used to prepare 60 simulated root canals. Analysis of surface characteristics by scanning electron microscopy (SEM) and chemical analysis of Ni and Ti content by energy-dispersive spectroscopy (EDS) were performed before and after the first and third use of the instruments...
July 2017: Brazilian Dental Journal
https://www.readbyqxmd.com/read/29042717/cervical-dentin-changes-in-curved-root-canals-after-using-waveone-and-reciproc-files-with-full-rotation-versus-reciprocation-movement-an-ex-vivo-study
#9
Yazdan Shantiaee, Golnaz Nahvi, Omid Dianat, Farzad Aghdashi
AIM: The aim of the current study was to compare the effect of WaveOne and Reciproc files in reciprocation versus reverse full rotation movements on cervical dentin thickness by virtue of cone beam computed tomography (CBCT) analysis in curved mesial canals of mandibular first molars. METHODS: Mesiobuccal canals of 60 mandibular molars were randomly divided into 4 groups (n = 15): Group 1; WaveOne/Reciprocation, Group 2; WaveOne/Full-Rotation, Group 3; Reciproc/Reciprocation, and Group 4; Reciproc/Full-Rotation...
July 2017: Contemporary Clinical Dentistry
https://www.readbyqxmd.com/read/29034579/rotary-versus-reciprocating-shaping-files-in-bacterial-elimination-from-long-oval-canals
#10
Andreas Krokidis, Carlo Bonfanti, Antonio C Cerutti, Nicola Barabanti, Panos Panopoulos
A comparison of the abilities of rotary versus reciprocating files to eliminate viable Enterococcus faecalis populations from the long oval root canals of extracted human teeth. Fifty teeth were contaminated and randomly distributed into two groups (n = 25 each): BT-RaCe group and WaveOne group. Two microbial samples were obtained from each tooth before (S1) and after (S2) instrumentation. The CFUs from the S1 and S2 measurements were calculated and compared between the groups. Both groups showed significantly fewer CFUs in the S2 samples (P < 0...
October 16, 2017: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/29033087/micro-computed-tomography-versus-the-cross-sectioning-method-to-evaluate-dentin-defects-induced-by-different-mechanized-instrumentation-techniques
#11
Carolina Pessoa Stringheta, Rina Andréa Pelegrine, Augusto Shoji Kato, Laila Gonzales Freire, Elaine Faga Iglecias, Giulio Gavini, Carlos Eduardo da Silveira Bueno
INTRODUCTION: The objective of this study was to compare the methods of micro-computed tomography (micro-CT) and cross-sectioning followed by stereomicroscopy in assessing dentinal defects after instrumentation with different mechanized systems. METHODS: Forty mesial roots of mandibular molars were scanned and divided into 4 groups (n = 10): Group R, Reciproc; Group PTN, ProTaper Next; Group WOG, WaveOne Gold; Group PDL, ProDesign Logic. After instrumentation, the roots were once again submitted to a micro-CT scan, and then sectioned at 3, 6, and 9 mm from the apex, and assessed for the presence of complete and incomplete dentinal defects under a stereomicroscope...
October 12, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/29019548/noncontact-three-dimensional-evaluation-of-surface-alterations-and-wear-in-niti-endodontic-instruments
#12
Fabiano Guerra Ferreira, Igor Bastos Barbosa, Pantaleo Scelza, Marcello Bulhões Montagnana, Daniel Russano, John Neff, Miriam Zaccaro Scelza
The aim of this study was to undertake a qualitative and quantitative assessment of nanoscale alterations and wear on the surfaces of nickel-titanium (NiTi) endodontic instruments, before and after use, through a high-resolution, noncontact, three-dimensional optical profiler, and to verify the accuracy of the evaluation method. Cutting blade surfaces of two different brands of NiTi endodontic instruments, Reciproc R25 (n = 5) and WaveOne Primary (n = 5), were examined and compared before and after two uses in simulated root canals made in clear resin blocks...
September 28, 2017: Brazilian Oral Research
https://www.readbyqxmd.com/read/28965772/detecting-dentinal-microcracks-using-different-preparation-techniques-an-in-situ-study-with%C3%A2-cadaver-mandibles
#13
Paymon Bahrami, Raymond Scott, Johnah C Galicia, Ana Arias, Ove A Peters
INTRODUCTION: This study assessed the frequency of dentinal microcracks using a cadaver mandible model in teeth instrumented with TRUShape (TS; Dentsply Sirona, York, PA), WaveOne Gold (WO, Dentsply Sirona), or K-files (KF) compared with an uninstrumented control group (CG). METHODS: Fifteen human mandibles with 95 single-rooted teeth were randomly distributed into the following groups: CG (no preparation, n = 11), TS (n = 28), WO (n = 28), and KF (step-back preparation with K-Flex-o-files [Dentsply Sirona], n = 28)...
September 28, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28862719/kinematic-analysis-of-new-and-used-reciprocating-endodontic-motors-in-2-different-modes
#14
Özgür Irmak, Ekim O Orhan
PURPOSE: The actual reciprocating angles of endodontic motors might differ from the manufacturers' set values. This study analyzed the effect of clinical usage on the kinematics of reciprocating endodontic motors with 2 different reciprocal modes. METHODS: 1 new and 3 used reciprocating endodontic motors (X-Smart Plus, Dentsply Maillefer) with 2 different reciprocating modes, WaveOne mode (W-mode) or Reciproc mode (R-mode), were analyzed. An angle measurement disc was inserted into a contra-angle...
August 10, 2017: International Journal of Artificial Organs
https://www.readbyqxmd.com/read/28855758/effect-of-glide-path-preparation-on-apical-extrusion-of-debris-in-root-canals-instrumented-with-three-single-file-systems-an-ex-vivo-comparative-study
#15
Ajinkya M Pawar, Mansing Pawar, Anda Kfir, Bhagyashree Thakur, Pooja Mutha, Kulwinder Singh Banga
AIM: The aim of this study was to test the effect of new protocol of glide path preparation by 20/0.04 rotary file on apical extrusion of debris when instrumenting fine curved mesial canals in mandibular molars with Self-adjusting File (SAF) and compare it to a glide path prepared by 20/0.02 hand K-file and rotary OneShape (OS) and reciprocating WaveOne (WO) file instrumentation. MATERIALS AND METHODS: Sixty mandibular molars with curved mesial roots were selected and randomly divided into three groups (n = 20) for instrumentation...
March 2017: Journal of Conservative Dentistry: JCD
https://www.readbyqxmd.com/read/28855755/comparison-of-apical-debris-extrusion-during-root-canal-preparation-using-instrumentation-techniques-with-two-operating-principles-an-in-vitro-study
#16
Mudita Verma, N Meena, R Anitha Kumari, Sudhanva Mallandur, R Vikram, Vishwas Gowda
AIMS: The aim of this study was to quantify the debris extruded apically from teeth using rotary and reciprocation instrumentation systems. SUBJECTS AND METHODS: Eighty extracted human mandibular premolars with single canals and similar lengths were instrumented using ProTaper Universal (40, 06; Dentsply Maillefer, Ballaigues, Switzerland), ProTaper Next (40, 06; Dentsply Maillefer, Ballaigues, Switzerland), WaveOne (40, 06; Dentsply Maillefer, Ballaigues, Switzerland), and Reciproc (R40; VDW GmbH, Munich, Germany)...
March 2017: Journal of Conservative Dentistry: JCD
https://www.readbyqxmd.com/read/28808639/comparison-of-cyclic-fatigue-life-of-nickel-titanium-files-an-examination-using-high-speed-camera
#17
Taha Özyürek, Neslihan Büşra Keskin, Fatma Furuncuoğlu, Uğur İnan
OBJECTIVES: To determine the actual revolutions per minute (rpm) values and compare the cyclic fatigue life of Reciproc (RPC, VDW GmbH), WaveOne (WO, Dentsply Maillefer), and TF Adaptive (TFA, Axis/SybronEndo) nickel-titanium (NiTi) file systems using high-speed camera. MATERIALS AND METHODS: Twenty RPC R25 (25/0.08), 20 WO Primary (25/0.08), and 20 TFA ML 1 (25/0.08) files were employed in the present study. The cyclic fatigue tests were performed using a dynamic cyclic fatigue testing device, which has an artificial stainless steel canal with a 60° angle of curvature and a 5-mm radius of curvature...
August 2017: Restorative Dentistry & Endodontics
https://www.readbyqxmd.com/read/28729793/assessment-of-consistency-in-the-dimension-of-gutta-percha-cones-of-protaper-next-and-waveone-with-their-corresponding-number-files
#18
Nitika Bajaj, Prashant Monga, Pardeep Mahajan
OBJECTIVES: To compare the dimensions of gutta-percha (GP) cones of ProTaper Next (25/0.06) and WaveOne (25/0.08) in relation to their corresponding instruments of the same dimension, respectively. MATERIALS AND METHODS: Two groups of GP cones were made with 25 cones in each group. Group 1 consisted of 25 GP cones # 25/0.06 (ProTaper Next). Group 2 consisted of 25 GP cones # 25/0.08 (WaveOne). Measurements were done at D1 (1 mm short of the tip), D3 (3 mm short of the tip), and D11 (11 mm short of the tip) for GP cones of both groups and were compared with their corresponding instruments...
April 2017: European Journal of Dentistry
https://www.readbyqxmd.com/read/28713762/comparison-of-the-shaping-ability-of-waveone-reciprocating-files-with-or-without-glide-path-in-simulated-curved-s-shaped-root-canals
#19
Ayca Yilmaz, Enver Sedat Kucukay, Murat Istektepe, Selen Nihal Sisli, Handan Ersev, Isil Karagoz-Kucukay
OBJECTIVES: The aim was to compare the shaping ability of WaveOne reciprocating files with or without glide path in simulated curved S-shaped root canals. MATERIALS AND METHODS: Forty ISO #15, 0.02 taper, clear resin Endo Training Bloc-S blocks were studied. The simulated curved S-shaped canals were dyed using ink, preinstrumentation images were scanned, and resin blocks were prepared and divided into Group A: PathFile and WaveOne and Group B: WaveOne. All canals were postoperatively scanned...
June 2017: Journal of International Society of Preventive & Community Dentistry
https://www.readbyqxmd.com/read/28662877/cyclic-fatigue-resistance-of-reciproc-blue-reciproc-and-waveone-gold-reciprocating-instruments
#20
Cangül Keskin, Uğur Inan, Murat Demiral, Ali Keleş
INTRODUCTION: The aim of the present study was to compare the cyclic fatigue resistance of Reciproc Blue R25 (VDW, Munich, Germany) with Reciproc R25 (VDW) and WaveOne Gold Primary (Denstply Maillefer, Ballaigues, Switzerland). METHODS: Fifteen Reciproc Blue R25, 15 Reciproc R25, and 15 WaveOne Gold Primary instruments were collected and tested in a dynamic cyclic fatigue test device, which has an artificial canal with a 60° angle of curvature and a 5-mm radius of curvature...
June 26, 2017: Journal of Endodontics
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