Results 121 to 130 of about 10,227 (256)

The Dental Misinformation Epidemic: An Evaluation of Quality, Accuracy and Educational Impact in Youtube's Tooth Bleaching Content

European Journal of Dental Education, EarlyView.
ABSTRACT Introduction The proliferation of inaccurate information about tooth bleaching on the internet poses a growing risk to oral health, promoting potentially harmful practices while undermining evidence‐based professional guidance. Objective Evaluate the quality, reliability, and educational impact of tooth bleaching videos on YouTube ...
Letícia de Azevedo Lima Silva, Hugo Juan da Silva Rolim, Gabriella Rodrigues da Silva, Pedro Henrique Sette‐de‐Souza, Moan Jéfter Fernandes Costa   +4 more
wiley   +1 more source

Microstructure and mechanical properties of welded joint of titanium/steel and titanium/copper/steel composite plate

Hanjie xuebao
The titanium/steel and titanium/copper/steel composite plates were butt joined by arc welding method. SEM, EBSD, TEM, microhardness, nanoindentation and tensile tests were applied to investigate the microstructure and mechanical properties.
Qiaoling CHU, Junyao WANG, Dan YANG, Zhongying WANG, Qilu CAO, Cheng YAN   +5 more
doaj   +1 more source

Evaluation of physical, chemical, and color‐matching properties of monochromatic resin composites: An in vitro study

European Journal of Oral Sciences, EarlyView.
Abstract The objectives of this study are to evaluate, in vitro, the microhardness, sorption, solubility, color stability, and color‐matching ability of monochromatic resin composites: Palfique Omnichroma / Tokuyama (Mono1) and Vittra APS Unique / FGM (Mono2) compared with the conventional resin composite: Filtek Z250 XT / Solventum (Conv).
Ericka dos Santos Lopes, Mayara Evelly Duarte de Lima, Emanuel Ewerton Mendonça Vasconcelos, Natália Gomes de Oliveira, Gabriela Queiroz de Melo Monteiro, Luís Felipe Espíndola‐Castro   +5 more
wiley   +1 more source

Effect of La2O3 addition on microstructure and hardness of induction heating iron-based composite coatings

Fenmo yejin jishu
Using 45# steels as the base materials, the Fe–Ni–Cr–La2O3 composite coatings were deposited on the 45# steel surface by medium and high-frequency induction heating.
YIN Haiwei, LI Yanhui, LIU Junzuo, LIU Peibin, SUN Yansong   +4 more
doaj   +1 more source

Avaliação da dureza superficial e dos compostos presentes em esmalte decíduo desmineralizado artificialmente, após aplicação da solução de fluoreto de diamino prata a 30%: estudo in vitro [PDF]

, 2001
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências da Saúde. Programa de Pós-Graduação em OdontologiaEste estudo in vitro avaliou a dureza superficial e os compostos presentes em blocos de esmalte de molares decíduos ...
Cardoso, Luciana
core  

In situ evaluation of the bleaching efficacy of experimental hydrogen peroxide hydrogel with MnO‐doped Biosilicate activated by violet LED light

European Journal of Oral Sciences, EarlyView.
Abstract Hydrogen peroxide (HP) at 35% is effective for dental bleaching but may reduce enamel mineral content and induce structural changes. This study developed a bleaching‐hydrogel containing 6%HP and manganese‐oxide–doped Biosilicate (MnO_BioS), activated by violet LED, under in situ conditions.
Rafael Dascanio, Marina Trevelin Souza, Camila Siqueira Silva Coelho, Matheus Kury, Edgar Dutra Zanotto, Vanessa Cavalli   +5 more
wiley   +1 more source

Evaluation of metastable phase and microhardness on plasma sprayed titania coatings

, 2006
TiO2 coatings were plasma sprayed using two spray-dried powders as feedstock materials with either a dense and solid shape or a hollow morphology. To achieve interesting photocatalytic properties, coatings must be in the anatase phase. The effects of the
Coddet, C., Berger-Keller, N., Bertrand, Ghislaine, Meunier, C.   +3 more
core   +1 more source

Effect of in‐office bleaching on the color stability of bulk‐fill resin composites immersed in staining beverages

European Journal of Oral Sciences, EarlyView.
Abstract This study evaluated the impact of in‐office bleaching on color stability of bulk‐fill composites submitted to staining. Bulk‐fill (Aura, Opus, and Filtek One) and nanofilled (Filtek Z350) composite specimens were submitted to the following: control (CT); bleaching and immersion in distilled water (BL); and bleaching with daily 15‐min ...
Matheus Kury, Thaís T. Feldens, Márcia V. G. B. Queiroz, Mayara A. P. Oliveira, Luciano S. Gonçalves, Maria Carolina G. Erhardt   +5 more
wiley   +1 more source

Microhardness test of graded SiC/EP rings: Experimental results and FE modeling

, 2005
Ring-shaped test specimens were made of gradient-structured SiC/EP composite produced by centrifugation. Compression tests and microhardness measurements were performed on epoxy matrix composites of even distribution of SiC reinforcement particles in ...
Friedrich, Klaus, Váradi, Károly, Felhős, Dávid   +2 more
core  

Single‐ or two‐visits endodontic treatment: Impact of irrigants on surface roughness, microhardness, topography, and fracture resistance of root dentin

European Journal of Oral Sciences, EarlyView.
Abstract This study evaluated the effect of the number of simulated endodontic treatment visits and the type of irrigant on the surface roughness, microhardness, topography, and fracture resistance of root dentin. Bovine roots were distributed into six groups (n = 14) according to the irrigant and number of treatment visits: 0.9% saline solution ...
Yasmin Padoin, Sidnei Flores de Pellegrin, Duvan Cala Castillo, William Lemos Bevilaqua, Gabriel Kalil Rocha Pereira, Guilherme Pauletto   +5 more
wiley   +1 more source