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Topic: Bleaching agent

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	Aqueous bleaching agent suspensions containing peroxycarboxylic acid, method for their preparation and use - Patent ...
		A storage-resistant, pourable to pasty aqueous bleaching agent suspension having a pH between approximately 1 and approximately 6 comprising an aqueous carrier liquid, a particulate, substantially water-insoluble peroxycarboxylic acid, an organic thickening agent, an acidifying agent and a hydrate-forming neutral salt which densensitizes peroxycarboxylic acids, the thickening agent comprising a xanthan polysaccharide or agar polysaccharide.
		A bleaching agent as set forth in claim 14 in which the hydrophilized peroxycarboxylic acid is obtainable during the preparatio of peroxycarboxylic acid from the base acid or its anhydride and hydrogen peroxide in the presence of sulfuric acid.
		The bleaching agent suspensions of the invention contain a hydrate-forming neutral salt in an amount of approximately 1 to approximately 40% by weight, preferably 2 to 20% by weight, calculated hydrate-free and in relation to the suspension, or the purpose of increasing the storage resistance of the suspension and desensitizing the peroxycarboxylic acid.
	www.freepatentsonline.com /4879057.html (4625 words)

	ADA.org: Oral Health Topics: Tooth Whitening Treatments Frequently Asked Questions
		If you are a candidate for bleaching, your dentist may suggest a procedure that can be done in his or her office.
		A bleaching agent is then applied to the teeth, and a special light may be used to enhance the action of the agent.
		A number of in-office bleaching agents have the ADA Seal of Acceptance, your assurance that they have met ADA standards of safety and effectiveness.
	www.ada.org /public/topics/whitening_faq.asp (636 words)

	Tooth Whitening
		Each night for three to four weeks the patient places the required amount of bleaching agent on the trays and places the trays in his or her mouth.
		A bleaching agent is applied to a standard mouth tray supplied with the kit and the tray is inserted into the mouth for a period of time specified by the kit.
		The procedure involves isolation of the tooth to be treated and the bleaching agent is applied to the inside (access cavity for the root treatment) of the tooth and then temporarily saled.
	www.homestead.com /davidmylo/bleaching.html (678 words)

	Borax Detergent Book \| Bleaching
		Bleaching, the whitening and brightening of laundry, is commonly achieved by the use of oxygen-based bleaching agents, delivering so-called active or available oxygen (Avox).
		Laundry bleaching, the whitening, lightening and brightening of fabrics and other articles by chemical means, is a combination of oxidative and non-oxidative processes.
		Sodium perborate is recognized as an outstanding oxidative bleaching agent and has been widely used as such for almost a century.
	www.borax.com /detergents/bleaching.html (661 words)

	Bleach Summary
		Bleaches are used to eliminate color imperfections such as grayness from natural fibers, including wool and cotton, and to impart a pleasing white, laundered effect.
		Bleaching may be a preliminary step in the process of dyeing.
		Chlorine dioxide is used for the bleaching of wood pulp, fats and oils, cellulose, flour, textiles, beeswax, and in a number of other industries.
	www.bookrags.com /Bleach (1978 words)

	Tooth bleaching system and method patent invention
		The method includes sealing the dentinal tubules of the teeth to be bleached to reduce the sensitivity of the teeth to be bleached; and applying a bleaching agent that includes an oxidative agent to a surface of the teeth to be bleached.
		Bleaching is commonly accomplished through the application of an oxidizing agent such as a peroxide to the teeth.
		This method includes applying a bleaching agent comprising an oxidative agent to a surface of the teeth to be bleached.
	www.freshpatents.com /Tooth-bleaching-system-and-method-dt20060817ptan20060183081.php (1019 words)

	Bleaching Trays - Weber State University (Site not responding. Last check: )
		The purpose of this research was to evaluate the impact that bleaching tray reservoirs had on the efficacy of tooth bleaching.
		The bleach trays that are most commonly offered at the dental office consist of a soft plastic that is form fit for each individual patient.
		The effect of bleaching agents is also a concern for the health of the tooth’s pulp.
	www.weber.edu /DCHPResearch/Bleaching_Trays.html (3018 words)

	zoom, teeth whiter, teeth bleach, white teeth, same day whitening, bleach, veneers, cosmetic dentistry
		Bleaching of the teeth with at-home trays is accomplished by wearing bleaching trays with bleaching gel in them.
		The special Deep Bleaching Technique of custom-made tray fabrication is one of the reasons that this style of bleaching works so well, The Deep Bleaching trays allow room for excess bleaching gel, and they seal it at the gum line.
		It is important to brush immediately before bleaching because protein from your saliva will coat your teeth within minutes after brushing and could inhibit the bleaching agent from whitening your teeth as quickly.
	www.dfwdental.com /deep_bleaching.cfm (1819 words)

	Teeth Whitening on MedicineNet.com
		namely, that a protective gel or guard is positioned over the gums before the bleaching agent is applied, the bleaching agent is applied directly to the teeth, and the whitening process is hastened with the use of heat, a special light, or laser light that is directed at the chemically coated teeth.
		With in-office procedures, the bleaching agent is applied directly to the teeth.
		With dentist-supervised bleaching procedures, your dentist will likely want to see you a couple of times to ensure you are following directions, to make sure the customized tray is fitting properly, to inspect your gums for signs of irritation, and to generally check on how the teeth whitening process is proceeding.
	www.medicinenet.com /teeth_whitening/page2.htm (904 words)

	Bleaching detergent or cleaning agent patent invention
		Although chlorine (accessible, for example, from hypochlorite) is a well-suited bleaching agent in principle because of its high oxidation potential, the oxidizing agents used are usually ones that utilize the oxidizing power of oxygen, since these agents present less risk of damage to the surface being cleaned.
		[0011] The content of the combination of percarbonate-based bleaching agent and persulfate-based cleaning agent in the agents according to the present invention is by preference 10 wt % to 70 wt %, in particular, 15 wt % to 30 wt %, particularly preferably 20 wt % to 40 wt %.
		Agents that contain such persulfate bleaching agents are known, for example, from European Patent Applications EP 0 135 226, EP 0 271 189, and EP 0 726 309 and from U.S. Pat.
	www.freshpatents.com /Bleaching-detergent-or-cleaning-agent-dt20061214ptan20060281655.php (1269 words)

	Bleaching Agents
		Using the proper bleaching agent is the key to having a successful teeth whitening experience.
		Carbamide peroxide is generally considered to be the most effective bleaching agent, and is used by most dentists.
		It is very important to know which bleaching agent you are using, and to select an appropriate concentration.
	www.teeth-whitening.cc /bestagents.html (235 words)

	Katz :: Integrative Dentistry:: Bleaching
		They are clear plastic forms that fit over and cover your teeth We provide you with a special bleaching agent that you put into the clear, almost invisible splint.
		Wearing the bleaching splint a couple of hours a day over a week and a half brightens the enamel significantly without harming tooth structure or existing dental work.
		Also, because all the bleaching products have the ability to cause sensitivity to the gums and teeth, we feel that it is better to use the recommended products under professional supervision.
	www.katzdentistry.com /services/bleaching.html (389 words)

	Dental Pages - Dr. Rajiv Khosla - Bleaching of Teeth
		This visit is crucial as home bleaching treatments may not be effective or preferable for every individual.For the best and safest results, the individual should be monitored by the dentist throughout either home bleaching or professionally applied treatments.
		Bleaching is used to enhance your smile by brightening your existing natural teeth.
		Generally, bleaching is successful in at least 90 percent of patients, though it may not be an option for everyone.
	members.rediff.com /drkhosla/bleaching.html (1445 words)

	OHSU School of Dentistry - Graduate Endodontics
		The effect of the bleaching agent sodium perborate on macrophage adhesion in vitro: implications in external cervical root resorption.
		An in vitro comparison of bleaching agents on the crowns and roots of discolored teeth.
		Cooper J. Penetration of the pulp chamber by carbamide peroxide bleaching agents.
	www.ohsu.edu /sod/endo/classic_lit_topics/Bleaching.html (636 words)

	California Dental Association - Bleaching
		Bleaching is most effective and generally quite successful on these types of stains.
		In some instances, bleaching would not be recommended, and your CDA member dentist is best able to advise you if your teeth and gums are healthy enough for bleaching to be safe and effective.
		For OTC bleaching systems that rely on a tray to hold the bleaching solution, often the tray is not custom-fit enough to hold the solution in place and prevent it from running out onto gums or from being swallowed.
	www.cda.org /popup/Bleaching (722 words)

	A new tooth bleaching agent has been developed using photocatalyst technology by AIST
		The bleaching agent, consisting mainly of titanium dioxide photocatalyst and low concentration (3.5%) hydrogen peroxide, was applied to the surface of the tooth, which was then irradiated for several minutes with violet light of 400 nm.
		The bleaching agent (code: MGC-01), developed jointly by the Ceramics Research Institute of AIST and Mitsubishi Gas Chemical Co., Inc., is an extremely safe product with superb bleaching properties, recommended for use as an in-office tooth whitening agent.
		After safety tests on animals indicated that no negative effects derived from the use of this bleaching agent, the research is advancing into the next step of clinical tests to further confirm the effectiveness and safety of this product.
	www.aist.go.jp /aist_e/latest_research/2001/20011119/20011119.html (526 words)

	Teeth Bleaching in Cleveland, Ohio, OH
		We provide you with a special bleaching agent that you put into the clear, almost invisible carriers.
		With only a few hours of wear per day, our special bleaching agent bubbles stains right out of your enamel in a very short time without altering tooth structure or existing dental work in any way.
		An impression is taken to make a specialized carrier that holds the bleach against the teeth.
	www.wholelifedentistry.com /cosmetic/bleaching.html (392 words)

	Procedures - Bleaching
		Tooth Whitening is actually a mild bleaching process that restores stained or discolored teeth to a healthy, natural color.
		These trays will guide the bleaching agent to the areas of your teeth that need to be bleached.
		Most patients wear the bleaching trays at night while they sleep, but they may be worn during the day since the clear, custom-fitted trays are barely visible and do not interfere with your ability to speak.
	www.gfdental.net /bleaching.htm (491 words)

	Power Bleaching
		In the past, many people who bleached their teeth were forced to live with dingy-looking enamel because no additional amount of bleaching would change the color of their teeth.
		In it, you’ll find several syringes of bleaching gel to use in your trays and a storage case for the trays.
		These are all normal effects of bleaching and the color will even out by the final bleaching session.
	www.stenvallgroup.com /pages/power_bleaching.htm (2693 words)

	Tooth Bleaching / Rembrandt Whitening in Brevard, NC, North Carolina
		We provide you with a special bleaching agent that you put into the clear, almost invisible splints.
		Rembrandt is a bleaching process that lightens discoloration of enamel and dentin.
		As Hydrogen Peroxide is broken down, oxygen enters the enamel and dentin, bleaching any colored substance while keeping the structure of the tooth unchanged.
	www.wateroakdental.com /dentistry_brevard_nc/bleaching.html (777 words)

	TAPPI Website - Activated Oxygen, A Selective Bleaching Agent for Chemical Pulps. Part VI: A Comparison of Various ...
		These oxygen based oxidants have already been employed as bleaching chemicals in bleach plants, however, the extent of their applications has historically been limited because they are less selective than chlorine or chlorine dioxide.
		Acetone is the simplest ketone and was used for generation of DMD in almost all the dioxirane bleaching studies.
		In order to operate the DMD bleaching process in a safe manner and to minimize fugitive emission of acetone, careful process design and special equipment are required [lo].
	www.tappi.org /s_tappi/doc_bookstore.asp?CID=5394&DID=521510&css=print (680 words)

	Skin Bleaching
		Mitracarpus scaber extract is a botanically derived lightening agent from the leaves of this tropical plant.
		Gluconic acid is a chelating agent, binding copper molecules necessary to activate the tyrosinase enzyme.
		The prescription portion of this physician directed bleaching routine is made up of generic tretinoin cream and a generic 4% hydroquinone.
	www.dermadoctor.com /pages/newsletter79.asp (2213 words)

	tooth-whitening-deals.com - Important information on bleaching agent (Site not responding. Last check: )
		The bleaching agent is either carbamide peroxide, which breaks down in the mouth to form hydrogen peroxide, or hydrogen peroxide itself.
		USA Weekend - At home, the tray is laced with a bleaching agent and worn for minutes to hours at a time, depending on the strength of the bleach.
		Akzo Nobel: Bleaching agent Akzo Nobel has a long and proud tradition in the Chemicals industry and...
	www.tooth-whitening-deals.com /search-j123/bleaching-agent.aspx (503 words)

	Tooth-bleaching: Better left up to a dentist—The Family Health Guide
		Causes of discoloration include staining from coffee or tobacco, injury that has damaged the pulp, ingestion of the antibiotic tetracycline or high levels of fluoride while the teeth are developing, corrosion from silver fillings, and the natural wearing away of the enamel with age.
		You then perform the bleaching at home by spreading the chemicals into the mouthpiece and putting it on for the recommended period (between 30 minutes and several hours) each day for a week or two.
		Without professional diagnosis, it’s hard to determine the source of discoloration and the effectiveness of the bleaching agent, so good results cannot be ensured.
	www.health.harvard.edu /fhg/updates/update0703d.shtml (543 words)

	What's the best teeth bleaching system?
		If a patient is bleached with a take-home tray system, used on a daily basis over a period of weeks, the long-term whitening results will be superior to those of the patient who has a one-time exposure to a powerful bleaching agent and a light.
		The bleaching light will produce a stronger immediate result, but the immediate brilliant whiteness achieved with the light (which comes mostly from the drying out effect of the heat and the light) will fade quickly unless the treatment is supplemented with a take-home tray.
		But look for a passion on the part of the dental office for appearance-related dentistry, for a dental office that does a lot of whitening and a lot of other cosmetic dentistry procedures, and that proudly displays photographs of their work.
	www.americasdentalbookstore.com /teethinfo/bestteethbleaching.htm (791 words)

	Skin Bleaching
		For example, in cold climatic regions such as Europe, inhabitants tend to have a lighter complex due to the cold weather, whereas in Africa, darker skin is better suited in the hot and humid climate.
		Mercury-based bleaching creams contain ammoniated mercury or mercrous chloride as a bleaching agent.
		Skin bleaching destroys the fl pigment found in the epidermis (top layer of the skin).
	library.thinkquest.org /27034/skin.html (551 words)

	whitening toothpaste and bleaching toothpaste
		A bleaching agent is applied to the teeth.
		Similar to In Office Power Bleaching with the exception that a laser is used as the light source which activates the bleaching agent
		Each night the patient places bleaching agent on the trays and places the trays in his / her mouth.
	www.saveyoursmile.com /ws/whitesmilef.html (250 words)

	Bleaching wood
		Choosing the correct bleaching agent makes all the difference when altering the natural color of wood to achieve uniformity.
		Many people make the mistake of thinking "bleach" in woodworking terms is the same bleach we see in household use.
		Flexner states "There are three types of bleach used in woodworking...Two-Part bleach (sodium hydroxide and hydrogen peroxide) removes the natural color from the wood.
	www.woodweb.com /knowledge_base/Bleaching_wood.html (525 words)

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