Results 41 to 50 of about 66,152 (249)

Eficácia de duas técnicas de obturação em cavidades experimentais de reabsorção radicular interna

Revista de Odontologia da UNESP
Introdução: O preenchimento com material endodôntico obturador em dentes com reabsorção radicular interna é extremamente difícil. Objetivo: Avaliar a eficácia de duas técnicas de obturação no preenchimento de cavidades experimentais de reabsorção ...
Tiago André Fontoura de Melo, Gustavo Golgo Kunert, Mireli Belizario da Silva, Mariella Falci Cabeda   +3 more
doaj   +1 more source

Unexpected Hazards with Dental High Speed Drill

Dentistry Journal, 2017
An expected accident can happen at any time during a routine practice in the dental office due to the types of instruments used. One of the instruments used in routine dental practice is a high speed drill and a bur. If Personal Protective Equipment (PPE)
Kassahun Hailu, David Lawoyin, Alison Glascoe, Andrea Jackson   +3 more
doaj   +1 more source

Real‐Time, Label‐Free Monitoring of Cell Behavior on a Bioelectronic Scaffold

Advanced Functional Materials, EarlyView.
A bioelectronic nanofibrous scaffold is introduced that supports cell growth while enabling real‐time, label‐free monitoring of cellular behavior through impedance measurements. The system correlates electrical signals with cell viability and surface coverage, offering an integrated platform for studying dynamic biological processes and advancing next ...
Dana Cohen‐Gerassi, Offir Loboda, Aakash Jog, Or Messer, Dor Aaron Goldstein, Tomer Reuveni, Moran Aviv, Amit Sitt, Yosi Shacham‐Diamand, Maxim Sokol, Lihi Adler‐Abramovich   +10 more
wiley   +1 more source

Evaluation of the risk of a stripping perforation with gates-glidden drills: serial versus crown-down sequences

Brazilian Oral Research, 2008
The aim of this study was to evaluate the remaining dentine/cementum thickness using Gates-Glidden burs in serial and crown-down sequences and to observe which of the two sequences is the safest for preparing mesial roots of molars.
Tauby Coutinho-Filho, Gustavo De-Deus, Eduardo Diogo Gurgel-Filho, Ana Carolina Rocha-Lima, Katia Regina Cervantes Dias, Carlos Augusto Barbosa   +5 more
doaj   +1 more source

Structural Porosity and Low Mineral Density in Enamel Rods Drive Molar Incisor Hypomineralisation

Advanced Functional Materials, EarlyView.
This study uses advanced imaging modalities on multiple length scales to show that molar‐incisor hypomineralization does not present as a locally homogeneous pathology. Instead, microstructural defects, characterized through non‐mineralized, protein‐rich sheaths and an altered mineral structure in between prism rods, resulting in local differences in ...
Katharina Jähn‐Rickert, Johannes Krug, Gudrun Lotze, Imke A.K. Fiedler, Diana Freund, Ezgi Deniz Türkoğlu, Christine Plumeyer, Felix N. von Brackel, Anton Davydok, Manfred Burghammer, Thomas Beikler, Thomas F. Keller, Katrin Bekes, Elizabeth A. Zimmermann, Björn Busse   +14 more
wiley   +1 more source

Cyclic flexural fatigue resistance of NiTi Controlled Memory and Blue Technology instruments after torsional preloading

Journal of Applied Oral Science, 2018
Objective The aim of this study was to evaluate the influence of torsional preloading on the cyclic flexural fatigue resistance of thermally treated NiTi instruments.
Túlio César MODESTO, Eufemia Carolina Peláez ACOSTA, Pedro Damas RESENDE, Érika Sales Joviano PEREIRA, Isabella Faria da Cunha PEIXOTO, Vicente Tadeu Lopes BUONO, Ana Cecília Diniz VIANA   +6 more
doaj   +1 more source

VIVID: A qPCR‐Based Platform for Sensitive and Quantitative In Vivo Tracking of Extracellular Vesicles

Advanced Functional Materials, EarlyView.
This study introduces VIVID (Vesicle In Vivo Identification using DNA), a qPCR‐based platform that tracks PCR‐amplifiable DNA tags loaded in the EVs for accurate and quantifiable EV biodistribution in vivo. ABSTRACT Extracellular vesicles (EVs) represent promising carriers for nucleic acid therapeutics, offering advantages over synthetic nanoparticles ...
Oscar Boyadjian, Talin Ebrahimian, Jonathan Miranda O'Connor, Janusz Rak, Stephanie Lehoux, Maryam Tabrizian   +5 more
wiley   +1 more source

Sensorized Engineered Tissues with Built‐in Thermoregulation and Nutrient Supply

Advanced Functional Materials, EarlyView.
This work introduces a granular hydrogel‐based tissue engineering platform that includes a closed‐loop temperature control to maintain 37°C and sustainably releases nutrients, thereby enabling cells to retain a high viability even if stored at room temperature for up to 24 h.
Antonia Georgopoulou, Jakob Schreiner, Miriam Filippi, Aiste Balciunaite, Robert K. Katzschmann, Esther Amstad   +5 more
wiley   +1 more source

The influence of autoclave sterilization on the cyclic fatigue of M-wire rotary endodontic instruments [PDF]

Vojnosanitetski Pregled
Background/Aim. The most important moment in modern endodontics is the inclusion of rotating instruments made of nickel-titanium alloy in daily clinical work, which have supplanted stainless steel instruments due to their superior properties.
Stošić Nenad, Popović Jelena, Stanković Antonije, Mitić Aleksandar, Nikolić Marija, Todorović Kosta   +5 more
doaj   +1 more source

Generation of an Induced Pluripotent Stem Cell‐Derived Alveolar Type II In Vitro Model to Study Influenza A Virus Infection and Drug Treatments

Advanced Healthcare Materials, EarlyView.
Patient‐specific induced pluripotent stem cells (iPSCs) can be differentiated into alveolar type II cells (iAT2s), expanded as 3D alveolospheres, and grown at physiologically relevant air–liquid interface (ALI). This study shows for the first time the infectability of iAT2s by the influenza A virus (IAV) and proves their responsiveness to the well ...
Lena Gauthier, Hristina Koceva, Yann Bachelot, Rosanne W. Koutstaal, Puck B. van Kasteren, Marc Thilo Figge, Christian Eggeling, Alexander Sandy Mosig   +7 more
wiley   +1 more source