Effects of a bleaching agent with calcium on bovine enamel - NCBI

Bleaching agents containing peroxide have been widely used for the ... The loss of enamel components is indicated by an increase in the size of the diagonal dental ... The Whiteness Blue Calcium 2% (2% calcium gluconate, HP, thickener, glycol, ..... Mineral loss from bovine enamel by a 30% hydrogen peroxide solution.

Get Price

Tooth-bleaching procedures and their controversial effects: A ...

In the late nineteenth century, many other bleaching agents were also ... Therefore, the causes of tooth staining must be carefully assessed for better ..... (2004) demonstrated that mineral loss caused by dental bleaching was not a threat to teeth. ... different bleaching agents: 35% hydrogen peroxide Whiteness HP (WHP),...

Get Price

Mineral loss and color change of enamel after bleaching and ...

Oct 28, 2013 ... to evaluate color change and mineral loss of tooth enamel as well as the influence of staining solutions ... Aesthetics have propitiated the development and improvement ... Bleaching agents are unstable, releasing oxygen free radicals .... bamide peroxide based for 6 h daily (Whiteness Perfect, FGM.

Get Price

Paper chemicals

Paper chemicals designate a group of chemicals that modify the properties of paper. ... 1 Chemicals used in paper manufacturing; 2 Pulping; 3 Bleaching; 4 Sizing .... To enhance the paper''s stre...

Get Price

Whiteness Assessment: A Primer - Axiphos

The emergence of Fluorescent Whitening Agents (FWA) during the fifties and their massive ..... during the “filling” process with a mineral pigment, resulting in an off-white ... bleached to increase whiteness giving near-white objects with high.

Get Price

Patent EP1146089A1 - Methods for bleaching kaolin clay and other ...

Oct 17, 2001 ... The process of claim 1 wherein the second reducing agent is an aluminum or boron reagent. ... A bleached kaolin clay or other bleached mineral obtainable by a ... In order to improve brightness and reduce color in kaolin, e.g., to a ..... color readings are presented as L* (whiteness measurement/Star Lab);...

Get Price

Effect of remineralizing agents on the bleaching efficacy of gels

Adding remineralizing agents to bleaching gels has been proposed to re- duce the mineral loss of enamel and tooth sensitivity. This study ... ization and enhance remineralization.12. The possible ... with 35% HP gel (Whiteness HP Blue,.

Get Price

Evaluation of human enamel permeability exposed to bleaching ...

CONCLUSIONS: The use of bleaching agents increased dental enamel ... was used with 35% hydrogen peroxide agent (PH35, Whiteness HP Maxx, FGM). .... its high mineral content, artificial saliva27 or natural human saliva11 may increase...

Get Price

Effect of Optical Brightening Agent (OBA) on Bleaching Process on ...

Sep 3, 2013 ... parameter whiteness as a tool to control bleaching pulp, instead of the traditional ... the pulp final brightness level in action of optical brighteners, to improve their per- ..... Since OBA is quenched by certain chemicals, minerals,.

Get Price

Contact Us

GBM is a leading and pioneering enterprise with the most advanced international level in R&D, manufacturing and selling of large-scale crushing & screening plants.

chat Online

About us

GBM Industry & Technology Group Co., Ltd. is one high-tech enterprise, which involves R&D, production

Read More