Hydrogen Peroxide Bleaching. On-Site Alkaline Peroxide Generation System.
نویسندگان
چکیده
منابع مشابه
In-situ Enzymatic Generation of Hydrogen Peroxide for Bleaching Purposes
Bleaching detergent formulations contain environmentally unfriendly bleaching agents (perborates and percarbonates), which cause aquatic eutrophication, although without these compounds detergents are much less efficient for the washing processes. In an effort to replace these compounds, in this study, hydrogen peroxide was generated as a bleaching compound by means of enzymatic reactions. Thre...
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Glucose oxidase was covalently immobilized on commercially available alumina and glass supports, with a high level of protein recovery. The operational stability of the alumina carrier was an advantage over the glass support, though the rate of generation of hydrogen peroxide in the case of the latter was higher. The immobilization technique provided repeated application of the enzyme even in l...
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Aim: The aim of this study was to evaluate the influence of temperature on the bleaching efficacy of hydrogen peroxide on chromogenic solutions from wine and tobacco. Methods: Inside optical glass cuvette, equal amounts of chromogenic solution (wine or tobacco), hydrogen peroxide 60% and ultra-pure water were mixed. Initial color readings were performed with a reflectance spectrophotometer imme...
متن کاملAt-home vital bleaching: a comparison of hydrogen peroxide and carbamide peroxide treatments.
Tray bleaching of vital teeth performed at home by the patient under the dentist s supervision, whether alone or in combination with any of the in-office techniques, provides an interesting alternative to other methods employed in this type of dental treatment. This bleaching procedure applies low-concentration peroxides to the enamel by means of a custom-made mouth tray specifically designed f...
متن کاملCytotoxicity and dentin permeability of carbamide peroxide and hydrogen peroxide vital bleaching materials, in vitro.
There has been recent concern about the inadvertent exposure of dentin with patent tubules as well as gingiva to bleaching systems containing 10-15% carbamide peroxide or 2-10% hydrogen peroxide for more than a few minutes. The aims of the present study were: (1) to determine the cytotoxicity of dilutions of hydrogen peroxide in cell culture; (2) to measure hydrogen peroxide diffusion from blea...
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ژورنال
عنوان ژورنال: JAPAN TAPPI JOURNAL
سال: 1998
ISSN: 0022-815X,1881-1000
DOI: 10.2524/jtappij.52.616