Results 121 to 130 of about 78,062 (293)

In-Vitro Evaluation of the Effect of Addition of Xylitol to Carbonated Diet Soda on Enamel Microhardness of Permanent Teeth

open access: yesJournal of Islamic Dental Association of Iran, 2013
Background and Aim : High consumption of carbonated diet soda is the most common etiologic factor for dental erosion. This study aimed to assess the efficacy of addition of Xylitol to carbonated diet soda to prevent enamel microhardness reduction in ...
Roza Haghgoo   +2 more
doaj  

Microhardness studies on thin carbon films grown on P-type, (100) silicon [PDF]

open access: yes
A program to grow thin carbon films and investigate their physical and electrical properties is described. Characteristics of films grown by rf sputtering and vacuum arc deposition on p type, (100) silicon wafers are presented.
Kolecki, J. C.
core   +1 more source

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

open access: yesEuropean 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   +5 more
wiley   +1 more source

Influence of corrosive solutions on microhardness and chemistry of magnesium oxide /001/ surfaces [PDF]

open access: yes
X-ray photoelectron spectroscopy analyses and hardness experiments were conducted on cleaved magnesium oxide /001/ surfaces. The magnesium oxide bulk crystals were cleaved to specimen size along the /001/ surface, and indentations were made on the ...
Buckley, D. H.   +2 more
core   +1 more source

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

open access: yesEuropean 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   +5 more
wiley   +1 more source

Thermal influence of welding process on strength overmatching of thin dissimilar sheets joints [PDF]

open access: yes, 2010
The investigation addresses the overall performance of black and white joints (BWJ) of low carbon steel and stainless steel thin sheets achieved by laser hybrid welding.
Caballero Molano, Luis   +4 more
core   +1 more source

A Systematic Review Evaluating Methods for Diagnosis, Treatment and Prevention of Dental Erosions

open access: yesInternational Journal of Dental Hygiene, EarlyView.
ABSTRACT Aim The aim of this systematic review was to investigate the quality of evidence for methods used to diagnose, restore and prevent dental erosions, by evaluating and summarising clinical controlled studies and in situ studies covering this field.
Maria Skalsky Jarkander   +5 more
wiley   +1 more source

The Issues of the Radiation Hardening Determination of Steels After Ion Irradiation Using Instrumented Indentation

open access: yesMetals
The application of the instrumented indentation method with a Berkovich indenter (triangular pyramid) is considered for the determination of microhardness and radiation hardening of ion-irradiated steels.
Boris Margolin   +2 more
doaj   +1 more source

Surface effects of corrosive media on hardness, friction, and wear of materials [PDF]

open access: yes
Hardness, friction, and wear experiments were conducted with magnesium oxide exposed to various corrosive media and also with elemental iron and nickel exposed to water and NaOH.
Buckley, D. H.   +3 more
core   +1 more source

First-principles study, fabrication and characterization of (Zr0.25Nb0.25Ti0.25V0.25)C high-entropy ceramic [PDF]

open access: yes, 2019
The formation possibility of a new (Zr0.25Nb0.25Ti0.25V0.25)C high-entropy ceramic (ZHC-1) was first analyzed by the first-principles calculations and thermodynamical analysis and then it was successfully fabricated by hot pressing sintering technique ...
Chu, Yanhui   +5 more
core   +2 more sources

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