Results 41 to 50 of about 1,552,406 (296)

Effect of pH of bleaching agent on tooth bleaching action in vitro.

Dental materials journal, 2021
This study investigated the effect of pH of bleaching agent, photo-irradiation time or application times on bleaching action using hematoporphyrin-stained papers (HSPs) and artificially stained bovine-teeth (BT). 23% H2O2 with pH 5.5, 6.0, 7.0, 8.0 and 9.0 were applied on the specimens. HSP was photo-irradiated for 1, 3 and 5 min.
WIJETUNGA, Chamari L., OTSUKI, Masayuki, HIRAISHI, Noriko, LUONG, Minh N., TAGAMI, Junji   +4 more
openaire   +2 more sources

Bleaching and microplastics: growing threats to coral reefs [PDF]

, 2022
openLa tesi si concentra sulla descrizione dei fenomeni di bleaching e di diffusione delle microplastiche, e di come rappresentino delle minacce per l'ecosistema delle barriere ...
COSTANTINI, LARA
core  

Charge‐Polarized Ni─S4 Single‐Atom Sites Drive Selective Photoreforming of Poly(lactic acid) to Lactate and Hydrogen

Advanced Functional Materials, EarlyView.
Atomically dispersed Ni–S4 sites on CdS nanorods induce interfacial charge polarization, directing photogenerated electrons to H2 evolution and holes to selective ester‐bond cleavage of poly(lactic acid). Without sacrificial reagents, this charge‐coupled system produces lactate while suppressing overoxidation, achieving an H2 evolution rate of 41.74 ...
Yu Yao, Panpan Zhang, Jinqiang Zhang, Xi‐lin Wu, Tara Pukala, Yifei Wang, Bernt Johannessen, Shaobin Wang, Xiaoguang Duan   +8 more
wiley   +1 more source

Association effect of in-office and nightguard vital bleaching on dental enamel microhardness

Brazilian Journal of Oral Sciences, 2015
The aim of this study was to evaluate “in vitro” the microhardness of dental enamel subjected to in-office and nightguard vital bleaching agents: 37% carbamide peroxide-CP37 (Whiteness Super-FGM) and 10% carbamide peroxide-CP10 (Whiteness Perfect-FGM ...
J.A. Rodrigues, Maria Carolina Guilherme Erhardt, Giselle Maria Marchi, L.A.F. Pimenta, Gláucia Maria Bovi Ambrosano   +4 more
doaj   +1 more source

Effect of different bleaching strategies on microhardness of a silorane-based composite resin [PDF]

Journal of Dental Research, Dental Clinics, Dental Prospects, 2016
Background. Dentists’ awareness of the effects of bleaching agents on the surface and mechanical properties of restorative materials is of utmost importance.
Mahmoud Bahari, Siavash Savadi Oskoee, Narmin Mohammadi, Mohammad Esmaeel Ebrahimi Chaharom, Mostafa Godrati, Ayda Savadi Oskoee   +5 more
doaj   +1 more source

Comparative In Vitro Studies on the Effect of Bleaching Agents on Dental Structures in Healthy and Predialysis Patients

Applied Sciences, 2021
(1) Background: What is the effect of 16% and 40% concentration bleaching agents on dental structures in healthy patients compared to predialysis patients?
Georgiana Florentina Gheorghe, Oana Elena Amza, Bogdan Dimitriu, Liliana Garneata, Ioana Suciu, Marioara Moldovan, Radu Marcel Chisnoiu, Doina Prodan, Andrea Maria Chisnoiu   +8 more
doaj   +1 more source

Avaliação da influência do Led/laser sobre diferentes concentrações de peróxido de hidrogênio no clareamento dental imediato [PDF]

, 2012
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências da Saúde, Programa de Pós-Graduação em Odontologia, Florianópolis, 2009O objetivo desta pesquisa foi avaliar a influência do sistema luminoso LED/LASER Whitening Lase ...
Rosário, Henrique Damian
core  

Clustomesogen Showing Sub‐Zero Liquid Crystal Properties: Supramolecular Assembly Between Cs2[Mo6Ii8(OCOC2F5)6] and Hexaethylenoxide Containing Mesogenic Dimers

Advanced Materials, EarlyView.
Associating a red‐NIR phosphorescent octahedral hexanuclear molybdenum cluster compound with hexaethyleneoxide chains bearing mesogenic units on both ends leads to an emissive hybrid liquid crystal showing mesomorphism on a very unusual temperature range down to −25°C.
Killiann Heinz, Jeanne Rebours, Zoulikha Zerrouqi, Noée Dumait, Maria Amela‐Cortes, Nikolai Scheuring, Sara Simonovska, Sebastian Marino, Max Ebert, Stéphane Cordier, Sabine Laschat, Yann Molard   +11 more
wiley   +1 more source

Efeito do pH de géis clareadores de alta concentração sobre a microdureza superficial do esmalte [PDF]

, 2012
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências da Saúde, Programa de Pós-Graduação em Odontologia, Florianópolis, 2010O objetivo deste estudo foi avaliar, in vitro, a microdureza do esmalte dental após a aplicação de ...
Soares, Sonia Mara
core  

When Poor Exciton Dissociation Limits Photocurrents in Organic Solar Cells: Why Low Offset Non‐Fullerene Acceptor Blends Can't Be Efficient

Advanced Materials, EarlyView.
The energetic offset between the donor and the acceptor components in organic photoactive layers is central to the tradeoff between photovoltage and photocurrent losses. This Perspective covers the most important issues surrounding this topic in non‐fullerene acceptor blends, from the difficulty of accurately determining state energies and driving ...
Dieter Neher, Manasi Pranav
wiley   +1 more source