Protaper Rotary System
Mostrando 1-12 de 26 artigos, teses e dissertações.
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1. Comparison of two rotary systems in bacteria/lps removal from endodontic infections: randomized clinical trial
Abstract: This clinical study compared the effectiveness of two rotary systems: HyFlex CM (Coltene-Whaledent, Altstetten, Switzerland) and ProTaper Next (Dentsply Sirona, Ballaigues, Switzerland) on the removal of cultivable bacteria and endotoxins from primarily infected root canals. This study was designed as a randomized single-blinded, 2-arm, clinical tr
Braz. oral res.. Publicado em: 16/05/2019
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2. Effect of ultrasound streaming on the disinfection of flattened root canals prepared by rotary and reciprocating systems
Abstract New technical and scientific developments have been advocated to promote the success of the endodontic treatment. In addition to rotary and reciprocating systems, irrigating solution agitation has been suggested and passive ultrasonic irrigation (PUI) is the most used. Objective: To evaluate, in vitro, the effect of ultrasound streaming (US) in the
J. Appl. Oral Sci.. Publicado em: 2017-10
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3. Topographic and Chemical Analysis of Reciprocating and Rotary Instruments Surface after Continuous Use
Resumo Este estudo teve como objetivo avaliar as alterações nas características de superfície e teor de NiTi de instrumentos reciprocantes e rotatórios após uso contínuo. Trinta instrumentos novos foram separados em três grupos (n=10): Grupo PNX1 - ProTaper Next system - instrumento X1; Grupo PNX2 - ProTaper Next system - instrumento X2 e Grupo WO -
Braz. Dent. J.. Publicado em: 2017-08
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4. Influence of NiTi alloy on the root canal shaping capabilities of the ProTaper Universal and ProTaper Gold rotary instrument systems
Abstract Objective This study aimed to evaluate the influence of the NiTi wire in Conventional NiTi (ProTaper Universal PTU) and Controlled Memory NiTi (ProTaper Gold PTG) instrument systems on the quality of root canal preparation. Material and Methods Twelve mandibular molars with separate mesial canals were scanned using a high-definition microcompute
J. Appl. Oral Sci.. Publicado em: 2017-02
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5. Influence of solvents on the bond strength of resin sealer to intraradicular dentin after retreatment
Abstract This study evaluated the removal of filling material with ProTaper Universal Rotary Retreatment system (PTR) combined with solvents and the influence of solvents on the bond strength (PBS) of sealer to intraradicular dentin after canal reobturation. Roots were endodontically treated and distributed to five groups (n = 12). The control group was not
Braz. oral res.. Publicado em: 26/01/2017
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6. Canal transportation and centering ability of curved root canals prepared using rotary and reciprocating systems
Abstract Aim: To evaluate canal transportation and centering ability of Protaper and WaveOne systems in curved root canals by cone-beam computed tomography. Methods: Twenty human molars were randomly divided into two groups according to the system used: Group GP (ProTaper Universal(r)) and group GW (WaveOne(tm)). CT scans were performed before and after th
Braz. J. Oral Sci.. Publicado em: 2015-09
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7. Computed tomography evaluation of rotary systems on the root canal transportation and centering ability
Abstract : The endodontic preparation of curved and narrow root canals is challenging, with a tendency for the prepared canal to deviate away from its natural axis. The aim of this study was to evaluate, by cone-beam computed tomography, the transportation and centering ability of curved mesiobuccal canals in maxillary molars after biomechanical preparation
Braz. oral res.. Publicado em: 11/02/2015
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8. Effectiveness of rotatory and reciprocating movements in root canal filling material removal
The purpose of this study was to compare the efficacy of reciprocating and rotary techniques for removing gutta-percha and sealer from root canals. Forty straight and oval single-rooted premolars were prepared up to size 30, filled with gutta-percha and sealer, and then randomly allocated to two experimental retreatment groups: ProTaper Retreatment System (P
Braz. oral res.. Publicado em: 02/12/2014
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9. Assessment of apically extruded debris and irrigant produced by different nickel-titanium instrument systems
The aim of this study was to evaluate the preparation time and the amounts of apically extruded debris and irrigant using different nickel-titanium instrumentation systems. Forty-five extracted single-rooted mandibular premolar teeth were selected and divided into three groups. The root canals were instrumented according to the manufacturers’ instructions,
Braz. oral res.. Publicado em: 11/11/2014
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10. Apical transportation associated with ProTaper® Universal F1, F2 and F3 instruments in curved canals prepared by undergraduate students
Objective: This study evaluated apical transportation associated with ProTaper® Universal Fl, F2 and F3 rotary files in curved canais prepared by undergraduate students. Material and Methods: Twenty mesial roots of mandibular molars with curvatures ranging between 25° and 35° were selected. Mesiobuccal canals were instrumented by twenty students wit
J. Appl. Oral Sci.. Publicado em: 2014-04
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11. Changes in root canal anatomy using three nickel-titanium rotary system: a cone beam computed tomography analysis
AIM: Cone beam computed tomography (CBCT) was used to evaluate the ability of three NiTi rotary systems to maintain the original root canal anatomy. METHODS: Sixty mesiobuccal canals of human mandibular first molars were divided into three groups with 20 root canals each. All teeth were scanned by CBCT before instrumentation. The images were captured digital
Braz. J. Oral Sci.. Publicado em: 2013-12
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12. Endodontic filling removal procedure: an ex vivo comparative study between two rotary techniques
In this study, we compared the ex vivo removal capacity of two endodontic rotary techniques and determined whether there was a significant quantitative difference in residual material when comparing root thirds. Forty extracted molars were used. The palatal roots were selected, and the canals were prepared using a step-back technique and filled using a later
Braz. oral res.. Publicado em: 2013-12