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Where To Buy Hydrogen Peroxide Gel

Objective: In-office bleaching gels are usually marketed in different pHs. This study is aimed at evaluating the efficacy, enamel surface morphology and concentration of hydrogen peroxide (HP) in the pulp chamber of teeth bleached with 40% HP with different pHs.

where to buy hydrogen peroxide gel

Advanced dual barrel whitening gel formulation features hydrogen peroxide in either 24% or 30% concentrations (24% is recommended for younger patients and those prone to sensitivity). Maximum efficacy and shortest treatment time without sensitivity.

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30% Hydrogen Peroxide Teeth Whitening treatment gel for the fastest and most effective chairside teeth whitening using patented warming mouthpiece technology to activate and accelerate the specially formulated hydrogen peroxide whitening gel.

GLO Science Professional offers two strengths of in-office whitening gel: 24% hydrogen peroxide and 30% hydrogen peroxide. Choosing the right strength will depend on patient sensitivity level, age, and starting shade as well as the desired whitening shade of the patient. The concentration of the hydrogen peroxide whitening gel included in the GLO Science Professional Take Home Kit for patient use at home, available exclusively through dental practices, is 10% HP.

Chemistry of chromogen bleaching. A. β-carotene is an example of an organic chromogen with many conjugated double bonds; B. Chemical reaction of hydrogen peroxide with a chromogen double bond; and C. Chemical reaction of sodium hypochlorite with a chromogen double bond.

It is important that Dentists handle the peroxides with the essential knowledge, because it is demonstrated that satisfactory final results of this technique depend on the correct diagnosis of stains, management of the substrates (enamel and dentin) and as well sensitivity.

Dentists are exposed to several dental bleaching techniques, products and brands, and in the last 2 decades the devices for light activation of the peroxides have become an extensive catalog. Today, the technique is also suffering changes based on the effectiveness of the different light sources for peroxide activation and its relation to satisfactory final results of the technique.

To date, two techniques of tooth whitening have been described: 1) Ambulatory (at home) that needs an intraoral device (tray) to apply the gel of peroxide, this one is more cost-effective, the value of the dental color obtained is sustained for long periods; but important changes in this value are not observed before 7th day of the treatment; and 2) in-office (by a professional) that uses photo-activation, this one allows changes in the color of the enamel from the first session, although there is strong evidence that the value of the dental color obtained is not sustained after 6 months [3-5].

Ameri confirmed on a study in Iran that the number of patients who wish to have tooth whitening treatment has increased by over 300% in the last 5 years; however, dentists often encounter the situation that patients prefer the office technique that involves photo-activation. There is evidence that photo-activation with Laser Light Emitting Diodes (LED) used on the in-office technique just turned out to be more advantageous than ambulatory technique, when compared with halogen lamps and lasers, noticing that in the ambulatory technique, the changes in the value of dental color are not observed up to 7 days of treatment. According to Sias and Abdul, the changes obtained in the value of the dental color through a home bleaching technique with 10% carbamide peroxide is held until 2 years after the procedure [4, 5].

In the west, tooth whitening is an old treatment and not unique to today's society. For over 100 years, the hydrogen peroxide (oxygenated water) has been used, as well as hydrochloric acid, together or separately, for internal bleaching (non vital teeth) or external bleaching (vital teeth) [8, 9].

Haywood and Heymann recommended the use of a gel of 10% carbamide peroxide (equivalent to 3.6% hydrogen peroxide) applied with a thin plastic individualized tray for each patient and its use for several hours a day at home for a period of 1-2 weeks. This was the origin of today's most widespread and economic bleaching technique (ambulatory), having the advantage of relying on bleaching substances at very low concentration, therefore, many products of this category are available in the market [8, 9].

Hydrogen peroxide is an oxidizing agent that is able to produce free radicals (H2O+O2), which are very reactive; in a purely aqueous state, the hydrogen peroxide is slightly acidic. The result is the perhydroxyl (HO2) that is the most potent free radical. To be able to promote the formation of the ion perhydroxyl, hydrogen peroxide needs to become alkaline; the optimum pH for this to occur is of 9.5 to 10 [7, 9].

In the ionization of hydrogen peroxide buffered by this pH, a large amount of H2O perhydroxyl free radicals are found, which result in a higher bleaching effect in the same amount of time. The most common concentration of hydrogen peroxide is 35% [7].

Moncada et al., have identified the carbamide peroxide typically in concentrations from 3% to 20%. It is decomposed into hydrogen peroxide (10% carbamide peroxide produces 3.6% hydrogen peroxide) [12]. These products contain carbamide peroxide with carbopol or glycerin base. Carbopol base decreases the release time of hydrogen peroxide, but it does not change the effectiveness of treatment. The carbamide peroxide preparations have a slightly acidic pH. [12]

There is evidence that peroxides can diffuse through the pulp, this phenomenon occurs depending on the time of contact with the substrates and the concentration of it; abnormalities on the enamel surface influence this diffusion. Most of the studies confirm that with these conditions in control, the inflammation of the pulp caused by dental bleaching is reversible [1, 14].

Meglani et al., defined the hydrodynamic theory, as dentinal tubules that are open widely and generate fluid movement within them, this fluid is spin-dried and acts on nerve endings or the dentino-pulpar complex; the hydrodynamic theory is the most widely accepted and is believed that is present during the application of the peroxides [16].

Several authors specified that sensitivity when is present, during or after bleaching is a totally controlled adverse side effect that can be managed easily with peroxides that includes fluor on its composition, or applying potassium nitrate; this situation can also be prevented [3, 17].

In the case of the laser LED, this is more favorable because it emits a blue light with high energy photons that efficiently stimulate the hydrogen peroxide molecule, without the thermal side effect, the great disadvantage of this is the high cost [3].

Some peroxides diffuse more quickly when activated chemically [21]. Ferrarazi et al., concluded that LED lamps are effective, safe and inexpensive to activate the hydrogen peroxide, [3] while Klaric on a temperature rise study stated that Zoom2 lamp compared to LED-405 lamp produced larger increments of temperature to the pulp [21, 22].

Sensitivity during whitening of vital teeth is associated to high concentrations of peroxide and exposure time to dental structures, and this sensitivity during bleaching is typically moderate and can be easily controlled [25-27].

Regarding the knowledge of the effects of the use of light sources, there is no evidence that these when used to activate the hydrogen peroxide improve its mechanism of action and thus the effect of tooth whitening, furthermore no association is known or a benefit relationship with the type of stain, the concentration of peroxide and enamel thickness [2, 26].

It is also important to address what several authors confirm, that there is a direct relation of the following principle: at less time of exposure of the tooth to the peroxide, there is less toxicity to the pulp, and at more time and less concentration, more satisfactory color results are obtained [25-29].

Hahn, et al., concluded that photo- activation of peroxides for dental bleaching alone is not beneficial, color is not stable over three months, and the increase in temperature caused to the pulp is important, this is consistent with Torres et al., who described that bleaching vital tooth through photo-activation based on diode lasers of low intensity is fast and intense but regression of color was observed before 12 months. Other studies have shown no statistically significant difference on changes of value of the dental color when using light activation [26, 30, 31].

Hydrogen peroxide is one of those things that we see and use often. Its versatility makes it great for a lot of things, from cleaning cuts to cleaning upholstery and bleaching hair. Some people even use it to de-yellow their toenails. But should you use it to de-yellow your teeth?

Nonetheless, a lot of in-office and at-home treatments use peroxide based agent, carbamide peroxide, to whiten teeth. Carbamide peroxide whitens teeth by breaking down into hydrogen peroxide and urea, which works as an acid to lift up stains in the teeth.

However, using low-dose peroxide or high concentrations for a long time can inflame your gums, tongue, and the roof of your mouth. Not to mention, swallowing hydrogen peroxide can wreck your esophagus and damage your internal organs.

If you want the whitening and oxidizing effects of hydrogen peroxide, try getting a tooth paste with a peroxide mixture in it. Your best bet is spending a few extra bucks on peroxide containing mixtures that are made specifically for whitening your teeth. ADA approved teeth whitening kits will contain a healthy amount of carbamide peroxide that are proven to keep your enamel healthy.

You're probably familiar with hydrogen peroxide and some of its many uses. Maybe you have nostalgic childhood memories of mom pulling out the brown plastic bottle to disinfect scrapes, cuts, or burns. But were you aware that hydrogen peroxide is used to practice good oral hygiene? Because this common ingredient in over-the-counter (OTC) care products can be dangerous when mixed in do-it-yourself (DIY) remedies, knowing how to safely use it to improve your smile is key. 041b061a72


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