نتایج جستجو برای: canal curvature

تعداد نتایج: 74171  

Background and Aim: Maintaining the original central canal path during cleaning and shaping of the root canal system plays an important role in the success of endodontic treatment. This study sought to compare canal transportation and centering ability of WaveOne and SafeSider rotary files using cone-beam computed tomography (CBCT). Materials and Methods: This in-vitro, experimental study was ...

2014
Narges Farhad Mollashahi Mahdi Sohrabi Leila Farhad Mollashahi Mojdeh Mehdizadeh

INTRODUCTION An overlooked but important part of successful root canal treatment is a straight-line access (SLA). The purpose of this in vitro study was to compare the efficacy of IntroFile and PreRaCe rotary instruments with Gates Glidden (GG) drills in gaining SLA by cone-beam computed tomography (CBCT). METHODS AND MATERIALS A total of forty five extracted mandibular first molars were sele...

2017
Yufei LIU Ning QIU Xiaoqing YU

This study compared the shaping ability of five Ni-Ti rotary files (ProTaper Universal, Reciproc, Hyflex CM, ProTaper Next and TF Adaptive) in simulated root canals. Each group consisted of 10 root canals. Preand post-instrumentation photographs were taken using a precise camera and superimposed with Photoshop. Material removal from the inner and outer canal walls, transportation and centering ...

2009
B Willershausen A Kasaj B Röhrig B Briseño

The aim of the present roentgenographic in vitro study was to determine the initial straight length from the cemento-enamel junction (CEJ) to the appearance of a root canal curvature in human mandibular premolars. A total number of 282 mandibular premolars were examined. Exclusion criteria comprised root caries, extensive restorations and endodontically treated teeth. The teeth were fixed and d...

2015
Xin Zhang Shijiang Xiong Yue Ma Ting Han Xinyu Chen Fang Wan Yating Lu Songhe Yan Yan Wang Gwendolen Reilly

The purpose of this study was to conduct a cone-beam computed tomographic (CBCT) investigation on the root and canal configuration of the mandibular first molars, especially the morphology of the disto-lingual (DL) root, in a Chinese subpopulation. A total of 910 CBCT images of the mandibular first molars were collected from 455 patients who underwent CBCT examinations as a preoperative assessm...

Abstract Background and aim: Maintaining the original geometry of canal is an important parameter in successful root canal treatment. The aim of this original study was evaluation of apical root canal transportation and centering ability of SafeSider and K-Flexofile using cone beam computed tomography. Materials and Methods: Mesiobuccal root canals of maxillary first molars, with 20-40° curvatu...

2018
Cangül Keskin Murat Demiral

Background. The present study aimed to compare the shaping ability of Reciproc Blue instruments with or without the creation of a glide path in simulated S-shaped root canals. Methods. Root canals of thirty #15.02 clear resin S-shaped blocks were dyed using ink and photographed. Then the blocks were randomly divided into 2 groups: group A: Reciproc Blue with glide path created with ProGlider an...

Bahareh Dadresanfar Masoud Parirokh, Nahid Mohammadzadeh-Akhlaghi Shahriar Shahab Shima Shahbazian

BACKGROUND AND AIM: Root canal treatment, especially in curved and constricted root canals, can be very difficult and time consuming. Several investigations have compared the reciprocating and full sequence motions in terms of shaping ability. The purpose of the present study was to compare the root canal transportation and centering ability of RECIPROC and iRace using cone-beam computed tomogr...

ژورنال: مجله دندانپزشکی 2016
اعتصامی, محمد جواد, درخشان, سید لطف‌الله, ساروی, محمد ابراهیمی, مقدم, کیومرث نظری,

Background and Aims: Cleaning and shaping is one of the most important stages in endodontic treatment. Single-file systems save time and reduce the risk of transmission of pathogens. This in vitro study was aimed to compare the rate of canal transportation after the preparation of the stimulated resin root canal with two single-file systems, namely Waveone and Reciproc. Materials and Met...

Journal: :Turkish neurosurgery 2015
Alper Kilicaslan Fatih Keskin Ozan Babaoglu Funda Gok Mehmet Fatih Erdi Bulent Kaya Huseyin Ozbiner Orhan Ozbek Osman Koc Burkay Kutluhan Kacira

AIM The sacral canal has been frequently used as "a passage" for minimally invasive diagnostic and therapeutic procedures for spinal diseases. The aim of the present study was to investigate morphometric analyses of the sacral canal, hiatus, and surrounding structures according to different age groups and gender by using the "multidetector computed tomography" method. MATERIAL AND METHODS Mul...

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