Now showing items 11-20 of 2868
pH-changes during intracoronal bleaching: An in vivo study
Objectives: This study aimed to measure pH changes during 14 days intracoronal bleaching with hydrogen peroxide/sodium perborate and carbamide peroxide/sodium perborate. Materials and methods: Twenty patients presenting ...
Electrogeneration of hydrogen peroxide applied to the peroxide-mediated oxidation of (R)-limonene in organic media
(Pontificia Universidad Católica de Valparaíso, 2007)
In vitro penetration of bleaching agents into the pulp chamber
Aim: To investigate pulp chamber penetration of bleaching agents in teeth following restorative procedures. Methodology: Bovine lateral incisors were sectioned 3 mm apical to the cemento-enamel junction and the coronal ...
A FAST, ROBUST ELECTROCHEMICAL METHOD FOR THE AUTOMATED DETERMINATION OF HYDROGEN PEROXIDE
(Sociedad Chilena de Química, 2009)
Ultracytochemical localization of hydrogen peroxide production by dental plaque bacteria
This study looked for evidence of in vitro hydrogen peroxide (HP) synthesis in human dental plaque, using an ultracytochemical technique that included incubation in a CeCl3-rich medium. Supragingival dental plaque was ...
Co2SnO4/Carbon nanotubes composites: A novel approach for electrochemical sensing of Hydrogen Peroxide
(Wiley-V C H Verlag GMBH, 2018)
For the first time Co2SnO4 (CTO)/Carbon nanotubes (CNT) composites were prepared and used to modify glassy carbon electrodes for the amperometric determination of hydrogen peroxide. The catalytic activity of composites ...
Studies on the Electrocatalytic Reduction of Hydrogen Peroxide on a Glassy Carbon Electrode Modified With a Ruthenium Oxide Hexacyanoferrate Film
(ELECTROCHEMICAL SCIENCE GROUP, 2011)
The electrocatalytic reduction of hydrogen peroxide on a glassy carbon (GC) electrode modified with a ruthenium oxide hexacyanoferrate (RuOHCF) was investigated using rotating disc electrode (RDE) voltammetry aiming to ...
Effect of pH on whitening efficacy of 35% hydrogen peroxide and enamel microhardness
Objective: This study aimed to evaluate the effect of 35% hydrogen peroxide at different pH values and the degree of tooth staining on whitening efficacy and enamel microhardness. Materials and Methods: 90 enamel-dentin ...