Results 21 to 30 of about 1,559,848 (287)
Química 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
Materials 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
Biomaterial Investigations in Dentistry, 2023 With the purpose of further reducing surface free energy to achieve better anti-bacterial adhesion effect of fluorinated dimethacrylate (FDMA)/tricyclo (5.2.1.0) decanedimethanol diacrylate (SR833s) based dental resin composites (DS), 1H,1H ...
Shengcan Zhang, Fang Liu, Jingwei He
doaj +1 more source
Cytotoxicity and Degree of Conversion of Orthodontic Adhesives
The Angle Orthodontist, 2009 Abstract Objectives: To test the hypothesis that there is no difference in the cytotoxicity related to the modes of polymerization of five commercially available orthodontic bonding resins, with and without an oxygen-inhibited layer (OIL), and to evaluate the degree of conversion (DC) of these resins and correlate this to ...
Nithya, Jagdish +7 more
openaire +2 more sources
Degree of conversion and polymerization shrinkage of low shrinkage bulk-fill resin composites
Contemporary 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
Development of accuracy enhancement system for boron meters using multisensitive detector for reactor safety [PDF]
, 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
Cyclo dehydration reaction of polyhydrazides. I. Kinetic parameters obtained with nonisothermal thermogravimetry [PDF]
, 1988 The thermal conversion reaction of poly-(1,3-phenyl-1,4-phenyl)-hydrazide into poly-(1,3-phenyl-1,4-phenyl)-1,3,4-oxadiazole has been studied using thermogravimetry (TG).
Gebben, B. +2 more
core +9 more sources
Effect of Different Thicknesses of Pressable Ceramic Veneers on Polymerization of Light-cured and Dual-cured Resin Cements [PDF]
, 2015 Aim: This study evaluated the effects of ceramic veneer thicknesses on the polymerization of two different resin cements. Materials and methods: A total of 80 ceramic veneer disks were fabricated by using a pressable ceramic material (e.max Press ...
Ahn, Kwang Woo +4 more
core +2 more sources
Curing of off-stoichiometric amine–epoxy thermosets [PDF]
, 2018 The kinetics of the epoxy–amine polycondensation and the epoxy homopolymerization in off-stoichiometric epoxy/amine formulations with excess of epoxy groups, and in the presence of an anionic initiator have been investigated.
Fernández Francos, Xavier +5 more
core +2 more sources
Imaging diffuse clouds: Bright and dark gas mapped in CO [PDF]
, 2012 We wish to relate the degree scale structure of galactic diffuse clouds to sub-arcsecond atomic and molecular absorption spectra obtained against extragalactic continuum background sources.
Liszt, H. S., Pety, J.
core +4 more sources