Results 71 to 80 of about 72,405 (344)

The dimensional accuracy of polyvinyl siloxane impression materials using two different impression techniques: An in vitro study

The Journal of Indian Prosthodontic Society, 2015
Aim of the Study: To evaluate and compare the linear dimensional changes of the three representative polyvinyl siloxane (PVS) impression materials and to compare the accuracy of single mix with double mix impression technique.
Nirmala Kumari, D B Nandeeshwar
doaj   +1 more source

Molar macrowear reveals Neanderthal eco-geographic dietary variation [PDF]

, 2011
Neanderthal diets are reported to be based mainly on the consumption of large and medium sized herbivores, while the exploitation of other food types including plants has also been demonstrated.
Benazzi, Stefano, Bromage, Timothy G., Fiorenza, Luca, Kullmer, Ottmar, Schrenk, Friedemann, Tausch, Jeremy   +5 more
core   +5 more sources

Development and Preliminary In Vivo Study of 3D‐Printed Bioactive Glass Scaffolds with Trabecular Architecture

Advanced Engineering Materials, EarlyView.
This study reports the fabrication of trabecular bioactive glass scaffolds (composition “1d”: 46.1SiO2‐28.7CaO‐8.8MgO‐6.2P2O5‐5.7CaF2‐4.5Na2O wt%) through vat photopolymerization and the relevant results from mechanical testing and in vivo implantation procedures in rabbit femora, showing great promise for bone tissue engineering applications.
Dilshat Tulyaganov, Roberta Gabrieli, Avzal Akbarov, Nigora Nigmatova, Bekhzod Khabilov, Alessandro Schiavi, Martin Schwentenwein, Enrica Verné, Francesco Baino   +8 more
wiley   +1 more source

Effect of a cordless retraction paste on titanium surface: a topographic, chemical and biocompatibility evaluation

Brazilian Oral Research, 2013
Good exposure of the preparation margins and haemostasis in the sulcular gingiva are necessary for accurate impressions to produce precise restorations. The use of cordless retraction paste material in implant dentistry is a relatively novel application.
Katherine Cooper, Vincent Bennani, Andrew Tawse-Smith, Malcolm Reid, Claudine Stirling, George Dias   +5 more
doaj  

Dental amalgam fillings: An under-investigated source of mercury exposure [PDF]

, 2019
Dental amalgam fillings, which contain about 50% mercury, have been used since the early 19th century. However, their use has been controversial, particularly because they continually release small amounts of mercury.
Ahlqwist, Ahlqwist, Ahlqwist, Bailer, Bangsi, Barregard, Barregard, Barregard, Bates, Bellinger, Bellinger, Bellinger, Bjorkman, Bjørklund, Boyd, Bratel, Bratel, Casetta, Clarkson, Clarkson, Counter, Daniels, de Burbure, DeRouen, Dye, Eti, Factor-Litvak, Ganss, Goldwater, Gun, Herrstrom, Herrstrom, Herrstrom, Herrstrom, Hsu, Hujoel, Hyson, Kingman, Lund, Malt, McGrother, Melchart, Nylander, Rothwell, Sandborgh-Englund, Saxe, Saxe, Schuurs, Seidler, Siblerud, Siblerud, Siblerud, Soler, Sun, Woods, World Health Organization   +55 more
core   +1 more source

Photothermal Hydrogel with Mn3O4 Nanoparticles Alleviates Intervertebral Disc Degeneration by Scavenging ROS and Regulating Extracellular Matrix Metabolism

Advanced Functional Materials, EarlyView.
The MPTT‐nanozyme‐hydrogel system (Mn3O4@ChS‐HA) provides a multifunctional therapeutic strategy for intervertebral disc degeneration (IVDD), effectively targeting oxidative stress and enhancing AF repair by restoring extracellular matrix (ECM) and redox homeostasis.
Yangyang Chen, Chan Xue, Feifei Ni, Binwu Hu, Miaoheng Yan, He Zhang, Yuxiang Hu, Xiaoyao Peng, Guangfang Li, Yu Han, Hongjian Liu, Zengwu Shao, Qin Wang, Yulong Wei   +13 more
wiley   +1 more source

Machine Learning‐Enabled Polymer Discovery for Enhanced Pulmonary siRNA Delivery

Advanced Functional Materials, EarlyView.
This study provides an efficient approach to train a machine learning model by merging heterogeneous literature data to predict suitable polymers for siRNA delivery. Without the need for extensive laboratory synthesis, the machine learning enabled a virtual screening and successfully predicted a polymer that is validated for effective gene silencing in
Felix Sieber‐Schäfer, Min Jiang, Adrian Kromer, Anny Nguyen, Müge Molbay, Simone Pinto Carneiro, David Jürgens, Gerald Burgstaller, Bastian Popper, Benjamin Winkeljann, Olivia Monika Merkel   +10 more
wiley   +1 more source

Barriers to the use of a diagnostic oral microbiology laboratory by general dental practitioners [PDF]

, 1999
OBJECTIVE: To identify barriers on the use of diagnostic microbiology facilities in general dental practice. DESIGN: A cross-sectional survey using a postal questionnaire. SETTING: Primary/secondary care interface between the diagnostic oral microbiology
Bagg, J., Jackson, M.S., MacKenzie, D., McEwen, J., Roy, K.M., Sanderson, J., Smith, A., Taylor, G.   +7 more
core   +1 more source

Precise Quantification of Angiogenesis in 3D Biomaterials Using in Vitro CAM Models: Enhancing 3Rs in Research and Minimizing in Vivo Dependency

Advanced Functional Materials, EarlyView.
The study develops elastin–fibrin scaffolds and evaluates angiogenesis using the chorioallantoic membrane (CAM) model. Advanced imaging with confocal microscopy and Indocyanine Green dye enables precise 3D quantification of vascular networks. Findings demonstrate superior microvessel visualization compared to micro‐CT using Microfil and Optiray 350 ...
Ece Melis Er, Martha Patricia Pérez González, Beatriz Gil Garrido, Jasmine Ho, Hae‐Won Kim, Jonathan Campbell Knowles, Jia Hua, Ferdinand Lali, Prasad Sawadkar   +8 more
wiley   +1 more source

Impact fracture strength applied to dental modeling materials

Brazilian Journal of Oral Sciences, 2016
The aim of the present study was to analyze the impact fracture strength using plaster and resin modeling materials. The analysis was made using nine dies having plaster III bases and internal portion of laboratory-type addition silicone.
Sérgio Candido Dias, Marcos Ribeiro Moysés, José Augusto M. Agnelli, Gisseli Bertozzi Ávila, José Carlos Rabelo Ribeiro, Luciano José Pereira   +5 more
doaj   +1 more source