Results 51 to 60 of about 5,533,800 (301)

Effect of incorporation of nano-hydroxyapatite particles on the clinical performance of conventional and resin-modified glass ionomer cement in class V cavities: split-mouth, randomized controlled trial

Bulletin of the National Research Centre, 2021
Background The aim of this study was to compare the clinical performance of Nano-hydroxyapatite-modified conventional glass ionomer cement (NHA-GIC) and Nano-hydroxyapatite-modified resin-modified glass ionomer cement (NHA-RMGIC) with conventional glass ...
Zeinab M. Zaki, Maha A. Niazy, Mohamed H. Zaazou, Shaymaa M. Nagi, Dina W. Elkassas   +4 more
doaj   +1 more source

Friction and Wear of Restorative Dental Materials [PDF]

Journal of Dental Research, 1971
Friction coefficients for a variety of material couples are reported. The relative abrasive wear of materials followed the order of their hardness, with one exception.
Tillitson, E. W., Craig, Robert G., Peyton, Floyd Avery   +2 more
openaire   +3 more sources

Is an Apple an Orange? A Large Language Model Benchmark for Candidate Term Extraction and Subclass Decisions Against Upper Ontologies in Engineering and Materials Science

Advanced Engineering Materials, EarlyView.
Building machine‐readable vocabularies for materials science is slow, expert‐driven work. This study benchmarks 13 large language models on two of its first steps: finding candidate terms in engineering articles and deciding where they belong in a class hierarchy.
Thomas Bjarsch, Maximilian Holland, Klaus Drechsler, Johannes Schilp   +3 more
wiley   +1 more source

Effect of nano-fluorapatite filler particles on surface microhardness and mineralization capacity of an experimental oral film

Bulletin of the National Research Centre
Background The objective of the study was to prepare and assess novel remineralizing oral films loaded with fluorapatite powder and composed of a combination of hydroxyethyl cellulose (HC) and cellulose nanofibers (CF).
Dalia Y. Zaki, Engie M. Safwat, Haidy N. Salem, Shaymaa M. Nagi, Tamer M. Hamdy, Lamiaa M. Moharam, Mohammad L. Hassan, Marwa A. Sherief   +7 more
doaj   +1 more source

Dental Restorative Material Ontology (DrMO)

, 2023
The DrMO ontology is a domain ontology that represents knowledge underlying the composition, characterization and standardization of different materials involved in the dental restoration procedure. It will assist dentists in selecting appropriate materials based on up-to-date scientific knowledge to satisfy a patient’s specific requirements, without ...
Nivedita Dutta, Michael DeBellis
openaire   +1 more source

Adaptive Foam 3D Printing of Ultralight and Multifunctional Materials

Advanced Engineering Materials, EarlyView.
Adaptive foam 3D printing, enabled by expandable microspheres, imparts cellular structures to thermoplastic and thermosetting polymers, manufactured through a variety of processes including fused filament fabrication, direct ink writing, digital light processing, and inkjet printing.
Nariman Rajabifar, Amir Ameli
wiley   +1 more source

Management of dental office during COVID-19 Pandemic [PDF]

, 2021
Novel Coronavirus (COVID-19) is a deadly protein molecule devastating the humankind and has brought down the life to a standstill. Its effect is determined by the interaction among the agent, the host and the environment.
Ravi Kumar, C, Lukka, Pavani, Sujesh, M, Kalidindi, Sri Sowmya   +3 more
core   +1 more source

In vitro evaluation of the physical characteristics and push-out bond strength of new experimental nano-MTA

Bulletin of the National Research Centre
Background This research assessed two materials to be used as endodontic sealing material. The setting time, pH change, calcium ions release, microhardness and push-out bond strength were compared.
Nada Omar, Yousra Aly, Haidy N. Salem
doaj   +1 more source

Non‐Additive Criteria Assessment in Sustainability Evaluation of High Entropy Alloys: A Toxicity‐Weighted Framework

Advanced Engineering Materials, EarlyView.
Sustainability assessment requires methodologies that appropriately distinguish between additive and non‐additive material properties. A toxicity‐weighted scoring system is developed and applied that accounts for the disproportionate influence of highly toxic constituents through nonlinear weighting functions, providing more realistic estimates than ...
Seth Mehalic, Oladele A. Ogunseitan, Julie M. Schoenung   +2 more
wiley   +1 more source

A new in vitro method for the study of micro-leakage of dental restorative materials [PDF]

, 2007
Microleakage is an important topic in restorative dentistry. A large number of different techniques have been developed for the investigation of microleakage.
Nguyen, Chin
core