Hydrogen (carbamide, Zinc) Peroxide in Tooth Bleaching / Whitening Products
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Tooth-whitening efficacy of custom tray-delivered 9% hydrogen peroxide and 20% carbamide peroxide during daytime use: a 14-day clinical trial.
OBJECTIVE The purpose of this 14-day parallel, double blind clinical trial was to evaluate the tooth whitening efficacy of a 9% hydrogen peroxide gel (Colgate Visible White) relative to a 20% carbamide peroxide gel (Opalescence) positive control. METHODS Forty-six consenting adults were randomly assigned to use one of the two products. All participants had 6 unrestored maxillary anterior teet...
متن کاملAnnals of Dentistry and Oral Disorders
Background: Bleaching agents have evolved in improving the appearance of discolored teeth. These agents can be hydrogen peroxide, carbamide peroxide or other proprietary material that breaks down into water and oxygen. The dissociated products penetrate through pores of enamel and dentine changing the value of the tooth. Some of the materials used in endodontics as an irrigant have mechanism of...
متن کاملClinical trial of three 10% carbamide peroxide bleaching products.
BACKGROUND A profusion of commercial bleaching systems exists on the market today, but there are few clinical comparisons of these systems. METHODS In this study, three different commercial 10% carbamide peroxide bleaching systems were used by 24 patients in an overnight protocol for two weeks. Each patient used two of the bleaching products simultaneously in a side-by-side comparison. RESU...
متن کاملEfficacy of Mouthwashes Containing Hydrogen Peroxide on Tooth Whitening
The aim of this study was to analyze the efficacy of mouthwashes containing hydrogen peroxide compared with 10% carbamide peroxide (CP) gel. Fifty enamel-dentin samples were obtained from bovine incisors and then stained in a tea solution. The stained samples were randomly divided into five groups according to the whitening product applied (n = 10): AS: no whitening (negative control), with the...
متن کاملIn vitro study on tooth enamel lesions related to whitening dentifrice.
BACKGROUND The tooth whitening substances for extrinsic use that are available in Brazil contain hydrogen peroxide or carbamide peroxide. Several studies have attributed the appearance of lesions in the enamel morphology, including hypersensitivity, to these substances. Such lesions justify fluoride therapy and application of infrared lasers, among other procedures. However, there is no consens...
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