Results 91 to 100 of about 2,304,365 (234)

Guanosine‐Quadruplex Hydrogels as Dynamic, Mechanically Tunable and Ion Conductive 3D Scaffolds for Cell Culture Applications

Advanced Functional Materials, EarlyView.
Versatile guanosine‐quadruplex (GQ) hydrogels are developed as dynamic biomatrices for cell culture. These scaffolds are fabricated under mild aqueous conditions, present improved stability, tunable mechanical properties within physiological ranges; fibrillar, porous microstructure, ion conductivity, and cytocompatibility.
Neha Thakur, Minye Jin, Pavel Milkin, Deepa Negi, Carla Cofiño Fabres, Hubert Gojzewski, Leonid Ionov, Alla Synytska, Andries van der Meer, Robert Passier, Julieta I. Paez   +10 more
wiley   +1 more source

Vertical root fractures

, 1990
In this study, I review, clinically and radiographically, 303 patients with 460 single or multirooted endodontically treated teeth. In all teeth, the therapy was performed by me with the use of final restoration of the crown with or without post and full
Morfis, A.S.
core  

Effect of obturating materials on vertical root fracture resistance of endodontically treated teeth

, 2007
The aim of this study was to compare vertical forces at fracture of teeth obturated with different materials. Single-rooted teeth were divided into five groups. The first group served as a negative control.
Hammad, M, Qualtrough, Alison, Mohammad Hammad, Nick Silikas, Silikas, N., Silikas, Nick, Alison Qualtrough, Qualtrough, AJ E, Hammad, Mohammad   +8 more
core   +1 more source

Intracrystalline Void‐Mediated Toughening of Brittle Crystals in Quail Eggshells

Advanced Functional Materials, EarlyView.
In quail eggshells, the high density and disordered arrangement of intracrystalline voids inhibit lattice cleavage, suppress long‐range crack propagation, and promote deformation twinning and quasi‐plasticity, serving as an essential toughening motif. We show that these voids remain within a narrow subcritical size range and therefore predominantly do ...
Jingxiao Zhong, Qihang Wang, Andre E. Vellwock, Sinuhe Perea Puente, Tingting Zhu, Jia Hui Lim, Kadda Medjoubi, Sebastian Hoerl, Erika Griesshaber, Wolfgang W. Schmahl, Yannicke Dauphin, Emeline Raguin, Peter Werner, Francesco Stellacci, Michael V. Swain, Peter Fratzl, Shahrouz Amini   +16 more
wiley   +1 more source

Unexpected Asymmetric Mn‐Sb Site Mixing and Reentrant Spin‐Glass State of MnSb2Te4

Advanced Functional Materials, EarlyView.
MnSb2Te4 is an intrinsic magnetic topological insulator. Its properties are extraordinarily sensitive to tiny defects, making structural studies essential for understanding how magnetism and topology work together. This work shows that Mn can be unevenly distributed within the crystal and how that disorder is linked to a newly reported spin‐glass state
Gustavo Chavez Ponce de Leon, Ahmad Dibajeh, Gert ten Brink, Majid Ahmadi, Suyang Sun, Wei Zhang, Bart Jan Kooi, George Palasantzas   +7 more
wiley   +1 more source

Application of Cone Beam Computed Tomography in Endodontics: A Review Article

Journal of Islamic Dental Association of Iran, 2014
Background and Aim : Cone beam computed tomography (CBCT) has attracted considerable attention as a new diagnostic imaging technique in dentistry. The aim of this study was to review its application in Endodontics .
Narjes Hoshyari, Kumars Nazari Moghaddam
doaj  

Stationary intraoral tomosynthesis imaging for vertical root fracture detection [PDF]

, 2017
University of Minnesota M.S. thesis. August 2017. Major: Dentistry. Advisor: Scott McClanahan. 1 computer file (PDF); viii, 168 pages.The purpose of this study was to compare the radiographic detection of induced vertical root fractures among periapical,
Regan Anderson, Michael
core  

Analysis of the Width of Vertical Root Fracture in Endodontically Treated Teeth by 2 Micro-Computed Tomography Systems

, 2017
Introduction: Early detection of vertical root fracture (VRF) is important for clinical endodontic practice. The purpose of this study was to measure the fracture width (distance between 2 sides of the fracture) of VRF teeth in vitro by using 2 micro ...
Huang, Chih-Chia;Chang, Ya-Chi;Chuang, Meng-Che;Lin, Hsueh-Jen;Tsai, Yi-Ling;Chang, Shu-Hui;Chen, Jyh-Cheng;Jeng, Jiiang-Huei, 蔡宜玲;鄭景暉   +1 more
core   +1 more source

Deformation‐Tolerant Functional Elastomer Overlayers for Haze‐Assisted Light Extraction and Color Conversion in Stretchable Mechanoluminescent Films

Advanced Functional Materials, EarlyView.
Functional elastomer overlayers are integrated onto stretchable ZnS:Cu‐PDMS mechanoluminescent films to regulate light after emission without modifying the emissive composite. NLC‐PU provides haze‐assisted light extraction to enhance green mechanoluminescence, while DCM‐NLC‐PU combines green‐to‐yellow‐orange color conversion with enhanced outward light
Gyudam Jeon, Seongkyu Song, Soon Moon Jeong, Na Young Ha   +3 more
wiley   +1 more source

Comparison of the Effect of Canal Preparation by Step Back Technique Using Hand Instruments and Gates Glidden Drills with ProTaper Universal Rotary System on the Root Resistance to Vertical Fracture

Majallah-i Dānishgāh-i ’Ulūm-i Pizishkī-i Shahīd Ṣadūqī Yazd, 2013
Introduction: Cleaning and shaping of the root canal system with an efficient and safe technique are the major goals of root canal treatment. The aim of this study was to compare the conventional root canal preparation technique by hand instruments and ...
A Abbaszadegan, Z Sadat Aleyasin, M Sedigh Shamsi, Sh Shahriari   +3 more
doaj