what are agent used for bleaching articles

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Bleaching | Article about bleaching by The Free Dictionary- what are agent used for bleaching articles ,bleaching, process of whitening by chemicals or by exposure to sun and air, commonly applied to textiles, paper pulp, wheat flour, petroleum products, oils and fats, straw, hair,Bleaching-induced tooth sensitivity with application of a ...May 18, 2019·Indeed, the use of desensitizing agents prior to in-office bleaching seems to be a controversial issue in the literature yet. To the extent of the author’s knowledge, the use of potassium nitrate–desensitizing agents prior to in-office bleaching was effective in three studies [ 11 , 45 , 46 ] and similar to the placebo in three other ...



Bleaching Recipe of Hydrogen Peroxide (H2O2) for Different ...

Sep 29, 2014·Bleaching Recipe of Hydrogen Peroxide (H 2 O 2) for Different Machines and Packages. Masum Sheikh B.Sc. in Textile Engineering Email: masum.tex13gmail . Hydrogen Peroxide (H 2 O 2) Hydrogen peroxide is a strong oxidizer and is used as a bleaching agent. It is an universal bleaching agent and can be employed for wool, silk as well as cotton.

Home-Use Bleaching Agents - The Journal of the American ...

Sep 01, 2001·Description. All ADA-Accepted home-use bleaching agents are dentist-dispensed and use 10 percent carbamide peroxide (also called urea hydrogen peroxide) as the active bleaching ingredient. The Acceptance Program has not evaluated the safety and efficacy of higher concentrations of carbamide peroxide at this time.

A comparative study of different bleaching techniques ...

Therefore, the tested in-office bleaching kits are accompanied by relief ACP amorphous calcium phosphate as a desensitizing agent to be applied using a tray after termination of bleaching agent . Relief ACP is an amorphous calcium phosphate containing agent, used to decrease both sensitivity and the degree of demineralization through the ...

Hydroquinone as a Bleaching Agent - Derma Network

Hydroquinone is an older bleaching agent and used for many years. It has the ability to decrease the syntheses of the skin pigment (melanin) and prevents skin discoloration. Hydroquinone is frequently used to treat skin blemishes like age spots, cholasma, freckles and acne scars. Once hydroquinone is applied to the skin, one should avoid sun ...

How To Bleach Your Skin: An Essential Guide To Achieve ...

Jan 28, 2022·1. Lemon Bleach. Vitamin C is extremely beneficial for the skin. Since lemon is enriched with Vitamin C, it has the power to brighten skin, reduce blemishes, and work as a natural bleach. How to use: Squish one lemon in a bowl …

Bacteria use bleaching agent to help cause infection – ID Hub

Sep 03, 2019·Streptococcus pneumoniae. use bleaching agent to help cause infection. Researchers, Nelson Gerkara (Stockholm University, Sweden) and Saskia Erttmann (Umeå University, Sweden) recently showed that Streptococcus pneumoniae use the common bleaching agent, hydrogen peroxide (H2O2), to inhibit inflammasomes, key components of …

About Bleaching Agents - EzineArticles

Hydrogen peroxide is an effective but rather expensive bleaching agent, which is sometimes used for small jobs and for bleaching stains. Before application of hydrogen peroxide a wash coat of ammonia or dilute sodium hydroxide should be placed on the wood. Then the bleaching agent, hydrogen peroxide, may be brushed onto the wood several times in full strength, if …

Update on materials used in intracoronal bleaching

The most used substances for these procedures are carbamide peroxide (CP), hydrogen peroxide, and sodium perborate (SP). 1 Despite the common use of bleaching agents, many studies have shown that ...

Tooth-bleaching procedures and their controversial effects ...

Mar 12, 2014·In a more recent study, Cakir et al. (2011) concluded that the use of home bleaching agents (10%, 20%, and 35% carbamide peroxide) could affect the chemical composition of dental hard tissues, whereas the change in the chemical composition of enamel and dentin was not affected by the carbamide peroxide concentration of the bleaching …

Assessing the Effect of a Desensitizing Agent Used Before ...

Oct 01, 2009·Application of a desensitizing agent before in-office bleaching may be an effective treatment for sensitivity. Previous studies have suggested that the use of an active desensitizing agent in the bleaching tray before at-home bleaching decreased the prevalence of tooth sensitivity or its intensity when compared with use of a placebo.

Bleaching Agent - an overview | ScienceDirect Topics

In Craig's Restorative Dental Materials (Thirteenth Edition), 2012. Bleaching Agents. Bleaching agents have been used on nonvital and vital teeth for many years, but their use on vital teeth has increased astronomically in recent years. These agents usually contain some form of peroxide (generally carbamide or hydrogen peroxide) in a gel that can be applied to the teeth either by a …

Bleaching Agents - Farr - - Major Reference Works - Wiley ...

Sep 19, 2003·Bleaching agents are used in hard surface cleaners to remove stains caused by mildew, foods, etc, and to disinfect surfaces. Disinfection is especially important for many industrial uses. Alkaline solutions of 1–5% sodium hypochlorite that may contain surfactants and other auxiliaries are most often used for these purposes.

Assessing the Effect of a Desensitizing Agent Used Before ...

the use of an active desensitizing agent in the bleaching tray before at-home bleaching decreased the prevalence of tooth sensitivity or its intensity when compared with use of a placebo.13,14 To our knowledge, no study has addressed this approach with regard to in-office vital tooth bleaching. Therefore, the aim of this double-blind random-

(PDF) The Causes & Effects of the use of Skin Bleaching ...

The women confirmed use or past use of skin bleaching products, it was indicated the following products were used: Clear touch crème, Crusader brand Soap, fashion Fair fast Action, Motivate cream, Roberts creams and soaps, Skin Success Gel, Symba crème, Zarina Skin Toning products, Tura creams/ soaps and mixtures and toothpaste concoctions.

Assessing the Effect of a Desensitizing Agent Used Before ...

the use of an active desensitizing agent in the bleaching tray before at-home bleaching decreased the prevalence of tooth sensitivity or its intensity when compared with use of a placebo.13,14 To our knowledge, no study has addressed this approach with regard to in-office vital tooth bleaching. Therefore, the aim of this double-blind random-

Bleaches - Chemistry Encyclopedia - structure, reaction ...

A large number of oxidizing bleaches were reviewed by Jules A. Szilard in Bleaching Agents and Techniques (1973). The oxidizing bleaches (and bleaching agents) in common use today are: chlorine, chlorine dioxide, alkaline hypochlorites, hydrogen peroxide, peroxygen compounds, and sunlight and artificial light.

Hydrogen peroxide tooth-whitening (bleaching) products ...

Apr 08, 2006·Tooth-bleaching agents should not be used [for at least 24 hours] prior to restorative treatment with resin-based materials. Urgent clinical studies are required on the genotoxic and tumour ...

BLEACHING POWDER INGREDIENTS..OMPOSITIONS | ARTICLES ...

These two separate bleaching agents, can be both liquid and powder. Chlorine-based bleaches, for white clothes, the oxygen-based bleaching agents used in both in white. Bleach has many uses when it comes to cleaning. The most obvious use of this cleaning agent is for maintaining the white clothes. a little bit of bleach along with detergent can ...

(PDF) Review on Skin Whitening Agents - ResearchGate

Jun 01, 2010·an agent used in rubber synthesis ... Skin whiting or skin bleaching is the material used to improve the appearance of skin as well as the lighting of the skin through artificial such as ...

Efficacy of Home-use Bleaching Agents Delivered in ...

Oct 10, 2016·Mild tooth sensitivity was observed with time, regardless of the bleaching agent concentration or the application time. Color change was similar for all the groups at 7 days and 14 days, but there was a greater reduction in the yellow hue at 14 days. All the bleaching methods were highly accepted and effective in promoting whitening.

(PDF) Review on Skin Whitening Agents - ResearchGate

Jun 01, 2010·Skin whiting or skin bleaching is the material used to improve the appearance of skin as well as the lighting of the skin through artificial such as creams, lotions, soaps and injections [1, 2 ...

Evaluation of bleaching efficacy, microhardness, and trans ...

Apr 11, 2022·The bleaching agents evaluated promoted a significant change in ΔE after bleaching sessions (p < 0.001) in previously pigmented enamel.All treatments showed similar performance, regardless of the period evaluated (p > 0.05).The color change was progressive and continuous from the first bleaching session (Fig. 1A).In ΔWID, all groups promoted gradual …

Bleaching Agent - an overview | ScienceDirect Topics

Bleaching agents are used extensively in the pulp and paper industry, the textile industry, and commercial and household laundering. The chemistry of bleaching agents is predominantly that of oxidizing agents: chlorine (Cl 2) and some of its compounds or peroxygen species such as hydrogen peroxide (H 2 O 2), ozone (O 3), and sodium perborate ...

The single discoloured tooth: vital and non-vital ...

Jun 14, 2019·The significance of these findings, however, must be questioned, as both studies used concentrations of bleaching agents greater than is …