Results 51 to 60 of about 66,427 (306)

Evaluation of failed endodontically treated molar teeth using micro-computed tomography

BMC Oral Health
Background The present study aimed to assess the internal root canal morphology and the quality of obturation in endodontically treated and failed first molars using micro-computed tomography (micro-CT).
Neslihan Büşra Keskin, Emine Odabaşı Tezer, Gülşah Uslu, Mahmure Ayşe Tayman, Mustafa Gündoğar, Utku Can Kemeç, Mert Ocak   +6 more
doaj   +1 more source

Evaluation of temporary cement to prevent bacterial contamination of the root canal after pulpectomy

RGO: Revista Gaúcha de Odontologia, 2022
To evaluate the ability of temporary cement (TC) and gutta-percha sticks (GP) to prevent bacterial contamination of the root canal through the coronal seal after pulpectomy.
Letícia Martins PEREIRA, Sophia Maria Mateus NAVES, Júlia Modesto da COSTA, Igor de Oliveira MORAES, Sandra Regina Echeverria Pinho da SILVA, Carlos Eduardo FONTANA, Sérgio Luiz PINHEIRO   +6 more
doaj   +1 more source

In vivo assessment of the impedance ratio method used in electronic foramen locators [PDF]

, 2010
Background The results of an in vivo study on the "ratio method" used in electronic foramen locators (EFL) are presented. EFLs are becoming widely used in the determination of the working length (WL) during the root canal treatment.
Marcos VH Rambo, Humberto R Gamba, Gustavo B Borba, Joaquim M Maia, Carlos AS Ramos   +4 more
core   +1 more source

Resonant Domain Wall Dynamics in a Three‐Dimensional Magnetic Nano Double Helix

Advanced Materials, EarlyView.
3D magnetic nanostructures promise exciting possibilities for magnetization dynamics. However, experimental realizations remain scarce. In nanoprinted cobalt double helices, time‐resolved X‐ray microscopy reveals harmonic domain wall dynamics. Simulations identify the mode and additional higher‐frequency resonances, revealing a rich dynamic landscape ...
Pamela Morales‐Fernández, Iason Konstantinos‐Douveas, Claas Abert, Elina Zhakina, Sandra Ruiz‐Gómez, Claudia Fernández‐González, Luke Alexander Turnbull, Sebastian Wintz, Markus König, Simone Finizio, Markus Weigand, Naëmi Leo, Dieter Suess, Aurelio Hierro‐Rodríguez, Amalio Fernández‐Pacheco, Claire Donnelly   +15 more
wiley   +1 more source

Retrievability of Bioceramic Sealers Assessed using Micro-computed Tomography and Scanning Electron Microscopy: A Literature Review [PDF]

Journal of Clinical and Diagnostic Research
Endodontic retreatment is a procedure to remove root canal filling material from the tooth, followed by cleaning, shaping, and obturation of the canals. Treatment outcomes may be influenced by incomplete removal of filling materials.
Faisal Alnassar
doaj   +1 more source

Humid‐Air Condensation Heat Transfer on Hierarchical Structured Superhydrophobic Graphite Composites

Advanced Materials Interfaces, EarlyView.
Humid‐air condensation on graphite composites shows that making a surface superhydrophobic is not sufficient to enhance heat transfer. A hierarchical CuO/lauric‐acid coating yields spherical droplets but promotes Wenzel‐type pinning and adds effective thermal resistance under operation.
Raphael Raab, Tobias Melchior, Hannah Mennecke, Daniel Fotachov, Egbert Oesterschulze, Thomas Reviol, Erik von Harbou, Hans‐Jörg Bart   +7 more
wiley   +1 more source

Subcutaneous connective tissue response to primary root canal filling materials [PDF]

, 2011
This study evaluated the response of the subcutaneous connective tissue of BALB/c mice to root filling materials indicated for primary teeth: zinc oxide/eugenol cement (ZOE), Calen paste thickened with zinc oxide (Calen/ZO) and Sealapex sealer. The mice (
ASSED, Sada, CONSOLARO, Alberto, LEONARDO, Mario Roberto, NELSON-FILHO, Paulo, QUEIROZ, Alexandra Mussolino de, SILVA, Lea Assed Bezerra, SILVA, Raquel Assed Bezerra   +6 more
core   +1 more source

Engineered Heparinized GQDS/HPEI–Polyamide Membrane for Bilirubin Removal via One Step Anti Coagulation

Advanced Materials Interfaces, EarlyView.
A multifunctional heparinized polyamide membrane embedded with graphene quantum dots (GQDs) and hyperbranched polyethyleneimine (HPEI) is engineered for efficient bilirubin removal via a one‐step anticoagulation–adsorption process. The membrane demonstrates enhanced hemocompatibility, prolonged clotting times, and high bilirubin adsorption capacity ...
Abdur Rehman Mushtaq Ahmad, Maria Wasim, Aneela Sabir, Muhammad Shafiq, Syed Abdul Basit Shah, Maoz Maoz, Vanni Lughi   +6 more
wiley   +1 more source

Desinfeção aplicada aos cones de guta-percha [PDF]

, 2015
Introdução: Ao longo do tempo o Tratamento Endodôntico Não Cirúrgico tem sido das áreas da Medicina Dentária que mais tem evoluído. Todos os passos do tratamento têm sido revistos de forma a aumentar a taxa de sucesso.
Flor, Eduardo Rafael de Lima
core  

Crack Repair in Hydroxyapatite Bioceramics Using an Ultraviolet Ultrafast Laser

Advanced Materials Interfaces, EarlyView.
The study proposes an ultrafast ultraviolet laser approach to repair hidden tooth cracks, which has been preliminarily validated on HAP. Moreover, this technique aims to strengthen the native enamel structure rather than introducing a foreign filling material.
Yan Xue, Kai Zheng, Yang Liao, Jing Cao, Xupeng Yuan, Fusong Yuan, Yuxin Leng   +6 more
wiley   +1 more source