نتایج جستجو برای: file instrumentation

تعداد نتایج: 75660  

Journal: :journal of dentistry, tehran university of medical sciences 0
b bolhari assistant professor, dental research center, department of endodontics, school of dentistry, tehran university of medical sciences, tehran, iran. n shokouhinejad a masoudi

calcium hydroxide is the most widely used intracanal medicament in endodontics, which should be removed prior to permanent root canal filling to minimize its intervention with the bonding of endodontic sealers. this ex-vivo study aimed to evaluate the effect of pretreatment with calcium hydroxide on the bond strength of resilon/epiphany self etch (se) to the radicular dentin after removing the ...

Journal: :Applied sciences 2023

Rotary instrumentation has been proposed in undergraduate teaching. The aim of this study was to evaluate student’s performance, through the obturation quality and treatment time, a sequential range L-simulated root canals. A senior dental student sequentially prepared randomly numbered canals from 1 40, with WaveOne Gold glider primary file, according manufacturer instructions. gutta-percha co...

2007
Daniel Peek Edmund B. Nightingale Brett D. Higgins Puspesh Kumar Jason Flinn

Sprockets are a lightweight method for extending the functionality of distributed file systems. They specifically target file systems implemented at user level and small extensions that can be expressed with up to several hundred lines of code. Each sprocket is akin to a procedure call that runs inside a transaction that is always rolled back on completion, even if sprocket execution succeeds. ...

2004
Nikolai Joukov Charles P. Wright Erez Zadok

Developing efficient file systems is difficult. Often, profiling tools are useful for analyzing system bottlenecks and correcting them. Whereas there are several techniques to profile system call activity or disk-block activity, there are no good tools to profile file systems—which logically reside below system calls and above disk drivers. We developed a tool called FSprof that instruments exi...

Journal: :Endodontics & dental traumatology 2000
K Gulabivala S Abdo M Sherriff J D Regan

The aim of this study was to investigate the possible relationship between interfacial forces, duration of instrumentation and effectiveness of root canal shaping by filing. All factors were standardised except the manner of manipulation of the files and the dependent variables (interfacial force and duration of filing). The outcome measured was the final prepared canal shape. The study tested ...

2007
Noosha Khadivi Nia Javan Ladan Mohajeri Baradaran Shahram Azimi

INTRODUCTION To compare the cleaning effectiveness of K3 and Race NiTi rotary systems with K-Flexo file instruments during the preparation of curved canals in extracted human teeth. MATERIALS AND METHODS A total of 50 root canals of mandibular and maxillary molars with curvatures ranging between 25º and 35 º were divided in three groups of 15 each and 5 as negative control groups. Canals were...

Journal: :Journal of endodontics 2010
Gustavo De-Deus Bianca Barino Renata Quintella Zamolyi Erick Souza Albino Fonseca Sandra Fidel Rivail Antonio Sergio Fidel

INTRODUCTION The aim of this study was to determine whether the debridement quality of the single-file F2 ProTaper instrumentation technique is comparable to a full conventional ProTaper sequence in both round and oval-shaped root canals. METHODS Fifty-four recently extracted vital lower incisors were instrumented with either a full range of ProTaper Universal instruments in rotary motion (gr...

2017
David W Christofzik Andreas Bartols Mahmoud Khaled Birte Größner-Schreiber Christof E Dörfer

BACKGROUND Electronic apex locators (EALs) are modern devices used to determine the working length during root canal preparation. The newest endodontic motors provide an integrated EAL with auto-stop function to prevent instrumentation beyond the predefined working length during rotary root canal preparation. The aim of this study was to compare the accuracy of the auto-stop function of the VDW...

2016
Farhin Katge Vamsi Krishna Chimata Manohar Poojari Shilpa Shetty Bhavesh Rusawat

OBJECTIVES The aim of this study was to compare the cleaning efficacy and instrumentation time between manual Hedstrom files (H-files) and rotary Mtwo files in primary molar root canals. MATERIALS AND METHODS A total of 90 primary root canals were selected using standardized radiographs. The canals were injected with India ink with 30 gauge insulin syringe and divided into three groups. Group...

Journal: :Brazilian dental journal 2007
Lilia E Leonardi Diana M Atlas Guillermo Raiden

The aim of the present study was to assess the presence of apically extruded debris and evaluate the influence of canal curvature on the amount of debris produced by manual and mechanical techniques. Forty single-rooted mature teeth with 15 to 30 degree of root canal curvature were selected. The presence of only one foramen was confirmed using a magnifying lens. A size 15 K-file was placed up t...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید