Results 21 to 30 of about 113,509 (296)

Cytotoxicity of Different Composite Resins on Human Gingival Fibroblast Cell Lines

Biomimetics, 2021
The aim of the present study was to evaluate and compare the cytotoxic effects of eight composite resins on immortalized human gingival fibroblasts. Composite resins were eluted in cell culture medium for 48 or 72 h at 37 °C.
Riccardo Beltrami, Marco Colombo, Keren Rizzo, Alessio Di Cristofaro, Claudio Poggio, Giampiero Pietrocola   +5 more
doaj   +1 more source

Effects of alkalisation and volume fraction reinforcement of Bombyx mori silk fibre on the flexural strength of dental composite resins

Dental Journal, 2020
Background: Composite resins are widely used in dentistry to restore dental caries. Recently, short fibre-reinforced composite (FRC) resins have been widely used for high-stress areas, especially in posterior teeth.
Dyah Anindya Widyasrini, Siti Sunarintyas   +1 more
doaj   +1 more source

Electrical conductivity of carbon nanofiber reinforced resins: potentiality of Tunneling Atomic Force Microscopy (TUNA) technique [PDF]

, 2003
Epoxy nanocomposites able to meet pressing industrial requirements in the field of structural material have been developed and characterized. Tunneling Atomic Force Microscopy (TUNA), which is able to detect ultra-low currents ranging from 80 fA to 120 ...
Raimondo1, Marialuigia, Guadagno, Liberata, Vertuccio, Luigi, Naddeo, Carlo, Barra, Giuseppina, Spinelli, Giovanni, Lamberti, Patrizia, Tucci, Vincenzo, Lafdi, Khalid   +8 more
core   +3 more sources

Surface discoloration of composite resins: Effects of staining and bleaching

Dental Research Journal, 2012
Background: The purpose of this in vitro study was to evaluate surface discoloration of three microhybrid composite resins (Esthet·X HD, Clearfil AP-X, Gradia Direct) and five nanohybrid composite resins (Ceram·X, GC Kalore, G-aenial, Grandio, GrandioSO),
Claudio Poggio, Riccardo Beltrami, Andrea Scribante, Marco Colombo, Marco Chiesa   +4 more
doaj   +1 more source

The effect of repeated preheating of dimethacrylate and silorane-based composite resins on marginal gap of class V restorations [PDF]

Journal of Dental Research, Dental Clinics, Dental Prospects, 2017
Background. One of the problems with composite resin restorations is gap formation at resin‒tooth interface. The present study evaluated the effect of preheating cycles of silorane- and dimethacrylate-based composite resins on gap formation at the ...
Parnian Alizadeh Oskoee, Fatemeh Pournaghi Azar, Elmira Jafari Navimipour, Mohammad Esmaeel Ebrahimi chaharom, Fereshteh Naser Alavi, Ashkan Salari   +5 more
doaj   +1 more source

Distribution and Excretion of TEGDMA in Guinea Pigs and Mice [PDF]

, 2001
The monomer triethyleneglycoldimethacrylate (TEGDMA) is used as a diluent in many resin-based dental materials. It was previously shown in vitro that TEGDMA was released into the adjacent biophase from such materials during the first days after placement.
A. Jewett, F.X. Reichl, Forst HT, G.W. Moes, H. Kreppel, J. Durner, K. Kehe, K.H. Kunzelmann, M.Y. Wang, R. Hickel, Reichl FX, Saygili G., U. Walther, W. Forth, W. Spahl, W.R. Hume   +15 more
core   +1 more source

Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer

FEBS Letters, EarlyView.
Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani, Noemi E. Nwosu, Viktoria Gocke, Müge Kasanmascheff, Hannes Mutschler   +4 more
wiley   +1 more source

Multiple ETS family transcription factors bind mutant p53 via distinct interaction regions

FEBS Letters, EarlyView.
Mutant p53 gain‐of‐function is thought to be mediated by interaction with other transcription factors. We identify multiple ETS transcription factors that can bind mutant p53 and found that this interaction can be promoted by a PXXPP motif. ETS proteins that strongly bound mutant p53 were upregulated in ovarian cancer compared to ETS proteins that ...
Stephanie A. Metcalf, Nicholas F. Downing, Kaitlyn M. Mills, Samuel C. Metcalfe, Alexander E. Kritzer, Lindsey D. Mayo, Peter C. Hollenhorst   +6 more
wiley   +1 more source

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

FEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva, Puspa Kunwar, Md Ibnul Rifat Rahman, Joanna Koryo Kwao, Nathan Lehman, Zihan Zhang, Trenton Paul, Claire Cheng, Nicholas Truex, Hui‐Ting Lee, Jun Zhang   +10 more
wiley   +1 more source

Adhesive for cryogenic temperature applications [PDF]

, 1969
Adhesive, which bonds a metal liner to a filament wound composite structure used for cryogenic pressure vessels, prevents the metal liner from buckling under depressurization.
Doyle, H. M.
core   +1 more source