Results 21 to 30 of about 1,551,640 (337)

Effects of Time Delay on Degree of Conversion of Contemporary Orthodontic Band Adhesives

open access: yesTurkish Journal of Orthodontics, 2013
Objective:For prolonged use in the oral cavity, orthodontic band adhesives should have certain physical properties to ensure the best clinical performance.
Bayram Çörekci   +4 more
doaj   +1 more source

Monomer conversion of composite dental resins photoactivated by a halogen lamp and a LED: a FT-Raman spectroscopy study

open access: yesQuímica Nova, 2005
Eighteen circular blocks of resins cured either by a LED or a halogen lamp (20, 40 and 60 s), had their top (T) and bottom (B) surfaces studied using a FT-Raman spectrometer.
Luís Eduardo Silva Soares   +4 more
doaj   +1 more source

Evaluation of cytotoxicity and degree of conversion of orthodontic adhesives over different time periods

open access: yesMaterials Research, 2010
As new orthodontic resin adhesives continue to be marketed, rapid and sensitive tests for examining their toxic effects at the ' cell and tissue level ' are needed because patient safety has been identifi ed as a legal concept.
Matheus Melo Pithon   +4 more
doaj   +1 more source

Particle orientation distribution in Y-Fe2O3magnetic tapes by Mössbauer and hysteresis loop measurements [PDF]

open access: yes, 1987
The particle orientation in several Y-Fe2O3magnetic tapes has been quantitatively evaluated by using the data of both Mössbauer and hysteresis loop measurements performed in the three orthogonal directions.
Labarta, Amílcar   +3 more
core   +1 more source

Degree of conversion and polymerization shrinkage of low shrinkage bulk-fill resin composites

open access: yesContemporary Clinical Dentistry, 2019
Background: The effectiveness of each resin composite material composition in enabling homogeneous monomer conversion and reducing polymerization shrinkage (PS) is an important issue.
Haidy N Salem   +2 more
doaj   +1 more source

Irreversible 2-conversion set in graphs of bounded degree [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2017
An irreversible $k$-threshold process (also a $k$-neighbor bootstrap percolation) is a dynamic process on a graph where vertices change color from white to black if they have at least $k$ black neighbors. An irreversible $k$-conversion set of a graph $G$
Jan Kynčl   +2 more
doaj   +1 more source

Fabrication of Novel Pre-Polymerized BisGMA/Silica Nanocomposites: Physio-Mechanical Considerations

open access: yesJournal of Functional Biomaterials, 2023
Resin composite mimics tooth tissues both in structure and properties, and thus, they can withstand high biting force and the harsh environmental conditions of the mouth.
Ali Alrahlah   +7 more
doaj   +1 more source

Development of accuracy enhancement system for boron meters using multisensitive detector for reactor safety [PDF]

open access: yes, 2020
Boric acid is used as a coolant for pressurized-water reactors, and the degree of burnup is controlled by the concentration of boric acid. Therefore, accurate measurement of the concentration of boric acid is an important factor in reactor safety.
Kim, Hee Reyoung, Sung, Si Hyeong
core   +1 more source

Evaluation of the Polymerization Properties of Bulk-Fill Composite Resins [PDF]

open access: yesJournal of Dental Materials and Techniques, 2021
Introduction: The aim was to evaluate the polymerization properties of bulk-fill composite resins in terms of the degree of conversion (%DC), Vickers hardness (HV). SonicFill (SF, Kerr, CA, USA), Tetric Evo Ceram Bulk-Fill (TECBF, Ivoclar Vivadent Schaan,
Latife Altınok Uygun   +1 more
doaj   +1 more source

Polymerization shrinkage kinetics and degree of conversion of resin composites

open access: yesJournal of Oral Science, 2020
This study compared shrinkage strain, polymerization shrinkage kinetics, and degree of conversion (DC) of a set of resin composites and investigated their influencing factors. Ten commercial resin composites were assessed, and 5 specimens (n = 5) were developed for material and subjected to light curing using light emitting diode light at 650 mW/cm2 ...
Tong, Xu   +6 more
openaire   +3 more sources

Home - About - Disclaimer - Privacy