Results 161 to 170 of about 617 (210)
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Cleaning of rotary nickel–titanium endodontic instruments
International Endodontic Journal, 2004AbstractAim To develop and evaluate an effective cleaning procedure for rotary nickel–titanium (NiTi) endodontic instruments.Methodology New rotary instruments (ProFile size 25/.04) were contaminated by preparing canals of extracted teeth. Three factors were evaluated to develop an effective cleaning sequence: dry or moist storage before cleaning ...
P, Linsuwanont, P, Parashos, H H, Messer
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A review of instrumentation kinematics of engine‐driven nickel–titanium instruments
International Endodontic Journal, 2015AbstractOver the years, NiTi alloys have become indispensable materials in endodontic treatment. With technological advancements in metallurgy, manufacturers have attempted to produce instruments with enhanced features. In parallel with these developments, endodontic motors have undergone improvements in terms of torque control and kinematics that are ...
Capar, I. D., Arslan, H.
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Journal of Endodontics, 2001
This study measured displacement of canal centers in extracted human teeth after preparation by Lightspeed and nickel-titanium K-files. The specimens were divided into two groups (n = 11), after radiographing the roots from the buccolingual and mesiodistal planes with pathfinding files in situ.
Deplazes, Pia +2 more
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This study measured displacement of canal centers in extracted human teeth after preparation by Lightspeed and nickel-titanium K-files. The specimens were divided into two groups (n = 11), after radiographing the roots from the buccolingual and mesiodistal planes with pathfinding files in situ.
Deplazes, Pia +2 more
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Bending properties of rotary nickel-titanium instruments
Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontology, 2003We sought to compare the bending properties of different rotary nickel-titanium instruments and to investigate the correlation between their bending moments and their cross-sectional surface areas.Resistance to bending was determined according to International Standards Organization publication 3630-1. The sample size was 10 files for each type, taper,
Edgar, Schäfer +2 more
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Methods and models to study nickel–titanium instruments
Endodontic Topics, 2013Over the past two decades, nickel–titanium (NiTi) instruments have become an important part of the armamentarium for root canal treatment. They are increasingly used by generalists and specialists to facilitate the cleaning and shaping of root canals.
Shen, YA, Cheung, GSP
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Bacterial reduction with nickel-titanium rotary instrumentation
Journal of Endodontics, 1998The purpose of this study was to compare intracanal bacterial reduction on teeth instrumented with 0.04 tapered nickel-titanium (NiTi) rotary instrumentation to bacterial reduction when using a stainless-steel K-file step-back technique using sterile saline irrigation. Forty-eight patients with apical periodontitis were randomly assigned treatment type.
B C, Dalton +4 more
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Elastic Limits in Torsion of Reciprocating Nickel-Titanium Instruments
Journal of Endodontics, 2015Reciprocating angle and torsional load at the superelastic limit were investigated for nickel-titanium (NiTi) instruments used with reciprocating movements.Two reciprocating NiTi instruments (Reciproc R25 [VDW, Munich, Germany] and WaveOne Primary [Dentsply Maillefer, Ballaigues, Switzerland]) and ProTaper F2 (Dentsply Maillefer) were tested for 2 ...
Jung-Hong Ha +5 more
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Torsional testing of the lightspeed nickel-titanium instrument system
Journal of Endodontics, 1996Revolutions to separation and maximum torque at failure of 216 Lightspeed instruments were determined in an instron using a clockwise rotation. After instruments failed, the distance the instrument separated from the tip was measured. Comparison of the results with existing ANSI/ADA specification no.
E S, Marsicovetere +3 more
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Dentine chips produced by nickel‐titanium rotary instruments
Dental Traumatology, 2000Abstract – This study aimed to compare the cross‐sectional shape of two nickel‐titanium rotary instruments, namely ProFile and Quantec files, both ISO 25, 0.06 taper, and sought to relate this to the chips produced by cutting dentine. A limited comparison was made with stainless steel engine reamers.
Guppy, D R, Curtis, R V, Pitt Ford, T R
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The hybrid concept of nickel–titanium rotary instrumentation
Dental Clinics of North America, 2004The idea of the hybrid concept is to combine instruments of different file systems and use different instrumentation techniques to manage individual clinical situations to achieve the best biomechanical cleaning and shaping results and the least procedural errors.
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