Results 61 to 70 of about 1,288,419 (253)

Efficacy of rotary Ni-Ti retreatment systems in root canals filled with a new warm vertical compaction technique

Dental Materials Journal, 2011
The aim of this study was to compare the efficacy of Mtwo, ProTaper retreatment files and Hedström files for the retreatment of root canals filled with BeeFill 2 in1 and cold lateral compaction techniques. 63 single-rooted human teeth were prepared with Mtwo rotary files to size 35/.04 and assigned into three groups (n=21/group).
YILMAZ, ZELİHA, ÖZÇELİK, BAHAR, Karapinar, SENEM PINAR   +2 more
openaire   +4 more sources

GuttaCore Pink, Thermafil and Warm Vertically compacted gutta-percha retreatment: Time required and quantitative evaluation by using ProTaper files

Dental Materials Journal, 2020
The goal of non-surgical treatment is to obtain an access to the root canal system in order to remove the previous filling. We analized 45 human single-canal roots, mesial roots of mandibular molars and distal roots of maxillary molars without previous endodontic treatment, fractures, resorptive defects or open apices. We evaluated the time required to
Fracchia, David Emilio, Amaroli, Andrea, Angelis, Nicola DE, Signore, Antonio, Parker, Steven, Benedicenti, Stefano, Polesel, Andrea   +6 more
openaire   +3 more sources

Asymmetry in Skipping Enhances Viability Against Control Input Noise

Advanced Robotics Research, EarlyView.
Quadruped animals use asymmetric galloping gaits at high speeds, yet the functional role of this asymmetry remains unclear. This study shows that left–right asymmetry in touchdown angles enhances robustness to control noise. Using a simple two‐legged locomotion model and viability theory, it demonstrates that asymmetric skipping substantially enlarges ...
Yuichi Ambe, Alvin So, Shinya Aoi
wiley   +1 more source

Sealing ability of the single-cone obturation technique with bioceramic sealer iRoot SP in oval root canals: an in vitro study

BMC Oral Health
Background The single-cone obturation technique with iRoot SP demonstrated strong filling capacity in circular root canals; however, its sealing ability in oval root canals remains underexplored.
Qiaoyun Zhang, Xinhui Meng, Jiyuan Zhan, Lijun Huo, Yayan Lei   +4 more
doaj   +1 more source

Quality of root canal fillings using three gutta-percha obturation techniques

Restorative Dentistry & Endodontics, 2016
Objectives The goal of this study was to compare the density of gutta-percha root fillings obturated with the following techniques: cold lateral (CL) compaction, ultrasonic lateral (UL) compaction, and warm vertical (WV) compaction.
Edith Siu Shan Ho, Jeffrey Wen Wei Chang, Gary Shun Pan Cheung   +2 more
doaj   +1 more source

Endodontic management of a maxillary lateral incisor with an unusual root dilaceration diagnosed with cone beam computed tomography

Saudi Endodontic Journal, 2017
Anterior teeth may have aberrant anatomical variations in the roots and root canals. Root dilaceration is an anomaly characterized by the displacement of the root of a tooth from its normal alignment with the crown which may be a consequence of injury ...
Mahmoud Mohammed Eid Mahgoub, Ahmed Abdel Rahman Hashem, Hany Mohamed Aly Ahmed   +2 more
doaj   +1 more source

The apical adaptation of different obturation techniques: an in vitro comparaison of carrier-based systems with warm vertical compaction

International Arab Journal of Dentistry, 2013
The aim of study was to evaluate the apical adaptation of different obturation techniques by determining the amount of sealer in the apical third of the canal, the presence of obturator at the last one millimeter, the amount of gutta-percha and the presence of plastic carrier at the foramen.
Mahmoud ROUSAN, Carla ZOGHEIB MOUBARAK
openaire   +1 more source

Tumbling Magnetic Microrobots for Targeted In Vivo Drug Delivery in the GI Tract

Advanced Robotics Research, EarlyView.
We introduce a microrobot design and integrated system for on‐demand targeted drug release in the gastrointestinal tract. The microrobot has an embedded magnet for actuation with external magnetic fields and is visualized in real time using ultrasound. It has two drug release ports sealed with a thermally sensitive wax. Local heating of the wax using a
Aaron C. Davis, Luis Carlos Sanjuan Acosta, Shubh P. Mehta, Baiyan Qi, Yang Yang, Luis Solorio, Craig J. Goergen, David J. Cappelleri   +7 more
wiley   +1 more source

Waveguide Photoactuators: Materials, Fabrication, and Applications

Advanced Robotics Research, EarlyView.
Waveguide photoactuators convert guided light into mechanical motion. Their tethered‐flexible design enables minimally invasive surgery and confined‐space robotics. This review aims to guide materials selection, device design, and system integration, accelerating the transition of waveguide photoactuators from laboratory prototypes to versatile ...
Minjie Xi, Hemin Pan, Yang Zong, Yongfeng Mei, Jizhai Cui   +4 more
wiley   +1 more source

Radiographic Outcomes Assessment Of 3030 Root Canal Fillings

International Dental Journal
Aim or purpose: This study aimed to evaluate and compare the quality of root canal fillings performed by Endodontists and General Dental Practitioners (GDPs). Materials and methods: A retrospective analysis of case records and periapical radiographs from
Ke Xu, Le Lu
doaj   +1 more source