Certain class whitening toothpaste containing bleaching compositions

Recently, the state administration of quality supervision, inspection and quarantine official website of a 'partial whitening toothpaste or mixed with a lot of bleach' article attracted journalist, to this, the reporter visited the university laboratory and do the research. In supermarket, full of beautiful things in eyes of various brands of toothpaste, many of them are through whitening effect to attract consumers, and observe the whitening toothpaste packaging, reporter saw the above indicate several ingredients, through understanding and involving the bleach component not found. But with the school laboratory experimental results, show that some whitening toothpaste does contain some bleaching compositions. Then, the reporter interviewed the first affiliated hospital of guangxi medical university dental Zhou Huizu, associate chief physician, he said the current whitening toothpastes whitening ingredients have released whitening agent, brightener, blue whitening agent and other chemicals. Tooth bleaching is usually by hydrogen peroxide component. Hydrogen peroxide on the tooth itself has certain harm, hospital patients do cold light whitening, bleach, contains many elements are hydrogen peroxide, and relatively high concentration, some patients after using reflection, one can't go to sleep at night, acid have been drooling, this kind of situation can recover, but it's on the surface of teeth enamel layer can cause damage, and in many cases, is irreversible. , using antioxidant ingredients of bleach teeth whitening, is a kind of by microhardness whitening method, is not suitable for everyone, such as for some of the enamel hypoplasia, cracked teeth, moderate abrasion of teeth, the oxidant would penetrate the teeth surface, into the teeth internal organization, once the uneven calcium deposition, can react with oxidant, have the opposite effect. Editor: Johnny