Results 91 to 100 of about 84,170 (359)

Surface hydration‐induced damage in tight oil‐bearing sandy conglomerate reservoirs

Deep Underground Science and Engineering, EarlyView.
A series of techniques such as X‐ray diffraction, scanning electron microscopy, energy‐dispersive spectroscopy, conductivity tests, and infrared thermal imaging were used. The key findings are the identification of a two‐stage surface hydration process and the elucidation of the effects of various minerals and elements on the hydration process ...
Anbang Zhao, Shuheng Du, Yuan Zhang, Jinghong Hu, Bo Zhou, Yun Wei   +5 more
wiley   +1 more source

Resin cements: Composite luting cements

, 2004
Resin cements (composite luting cements) are used for cementation all ceramic crowns in contemporary dental practice. These materials which are characterized by type of fillers, initiation system, their viscosity, mechanical properties (wear resistance, elastic modulus, compressive strength, tensile and shear strength), and by their physical properties
Obradović-Đuričić, Kosovka, Martinović, Željko   +1 more
openaire   +1 more source

Modeling and experimental validation of bolt–grout bond–slip behavior for deep underground excavation support

Deep Underground Science and Engineering, EarlyView.
A novel shear‐lag model, validated by pull‐out tests, incorporates a constant bond stress stage to predict the complete load–displacement response of grouted rock bolts, providing a new tool for optimizing anchorage length and material toughness in deep underground engineering. Abstract The stability of rock masses in deep underground excavations, such
Wenhui Bian, Xiaohui He, Kexue Wang, Yufei Wu, Guoxin Wang, Shaochen Zhang, Jun Yang   +6 more
wiley   +1 more source

Evaluation of two cementation protocols for lithium disilicate crowns on zirconia one-piece implants: a micro-CT analysis of cement thickness, porosity, and excess

Biomaterial Investigations in Dentistry
Objective: To evaluate the influence of two cementation protocols on lithium disilicate crowns cemented to zirconia one-piece implants by analyzing cement thickness, porosity, and excess cement using micro-computed tomography (micro-CT). Materials and
Veranda Azizi Bunjaku, Ivica Pelivan, Rania Al-Mahdi, Blerina Azizi Veseli, Ying Xue   +4 more
doaj   +1 more source

Dental development in the tropical gar (Atractosteus tropicus) and the evolution of vertebrate dentitions

Developmental Dynamics, EarlyView.
Abstract Background Dentitions have diversified enormously during vertebrate evolution, involving reductions, modifications, or allocations to prey seizing and processing regions. A combination of ancient and novel features related to dental and oropharyngeal apparatuses is found in extant lineages of non‐teleost fishes, such as the gars.
Anna Pospisilova, Jan Stundl, Lenin Arias‐Rodriguez, Robert Cerny, Vladimír Soukup   +4 more
wiley   +1 more source

Porosity of resin cements and resin-modified glass-ionomers. [PDF]

American journal of dentistry, 2001
To quantify the internal free surface in various resin cements and glass-ionomer-based materials.Materials tested were Nexus fluid (NXF) and viscous (NXV), Vitremer (VTM), Fuji II LC (FII), Vitremer Luting Cement (VLC), Dyract (DYR) and Compoglass (COM).
Miguel Calvo, Alicia, Macorra García, José Carlos De La, Nevado Rodríguez, Silvia, Gómez López, Javier   +3 more
openaire   +2 more sources

Carbon Dots: An Emerging Frontier for Green and Sustainable Civil Engineering Materials

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Traditional civil engineering materials (CE materials) are usually involved with high‐energy consumption during manufacturing, significant maintenance costs, and substantial environmental impacts throughout their life cycles. The progress of nanotechnology is catalyzing a green and sustainable transformation within the field.
Weiwen Hao, Xiaolong Wang, Xiao Chen, Dong Liu, Zhenhui Kang, Cheng Zhu   +5 more
wiley   +1 more source

Impact of a Modular Escape Game on Undergraduate and Continuing Dental Education

Journal of Dental Education, EarlyView.
ABSTRACT Purpose This study aimed to assess the educational impact and perceived relevance of a pedagogical escape game designed to reinforce key concepts related to dental biomaterials. Methods In 2023, a modular escape game comprising four mandatory stations and one bonus station was developed and integrated into two pedagogical settings: a ...
Sara Bergman, Yasmine Smail, Timothy Fasham, Mathieu Izart, Yohann Brukarz, Fleur Beres, Vinciane Lore, Marie Jannot, Max Troizier‐Cheyne, Stephane Le‐Goff, Sarah Abdel‐Gawad, Laurence Jordan, Julia Bosco, Samuel Morice, Amelie Lefort‐Louet, Lina Grich, Sandrella Hamdan, Romain Ceinos, Sophie Gosselin, Thibault Lemonnier, Elisabeth Dursun, Helene Gouze, Jean‐Pierre Attal, Elisa Caussin, Philippe Francois   +24 more
wiley   +1 more source

In Vitro Evaluation of Novel Calcium Silicate‐Based and Resin‐Modified Calcium Silicate Materials: Cytocompatibility and Mineralization Potential on Human Dental Pulp Stem Cells for Pulp Repair

Microscopy Research and Technique, EarlyView.
This study demonstrates that Biodentine XP exhibits superior cytocompatibility, promotes odontogenic differentiation, and enhances mineralization in human dental pulp stem cells, supporting its use in regenerative endodontics. Resin‐modified materials showed lower bioactivity, highlighting the importance of material composition in pulp therapy outcomes.
Francisco Javier Rodríguez‐Lozano, Nuria Pérez‐Guzmán, Paula García‐Rios, David García‐Bernal, Adrián Lozano, Sergio López‐García   +5 more
wiley   +1 more source

Influence of activation modes on diametral tensile strength of dual-curing resin cements Influência dos métodos de ativação na resistência à tração diametral de cimentos resinosos duais

Brazilian Oral Research, 2005
In metallic restorations, the polymerization of dual-curing resin cements depends exclusively on chemical activation. The effect of the lack of photoactivation on the strength of these cements has been rarely studied.
Renata Garcia Fonseca, Juliana Gomes dos Santos, Gelson Luis Adabo   +2 more
doaj   +1 more source