Take what to save you, my rhubarb tooth?

A few days ago, a toothpaste manufacturer of a well-known brand was fined 6.03 million by the industrial and commercial department for an exaggerated advertisement. One of the reasons for accusing it of being a “false advertisement” was that it used post-image processing, which excessively highlighted its “magical effect” of whitening and brightening teeth within [one day].

Why do teeth change color?

We often hear that smoking, drinking tea, coffee, cola, etc. will cause yellowing of teeth. This kind of tooth coloring mainly caused by pigment adhering to the tooth surface in food, beverages and mouthwash is called [exogenous coloring]; Correspondingly, the internal structure of teeth is colored due to congenital or acquired lesions of teeth and the influence of drugs, which is called [endogenous coloring], of which the two most common are [tetracycline teeth] and [dental fluorosis].

Can toothpaste make what?

Traditional toothpaste mainly includes friction agent, cleaner, wetting agent, adhesive, fragrance, preservative and water.

The main function of friction agent is to remove plaque, pigment and food residue on the tooth surface, and to a certain extent to polish the teeth and make the tooth surface smooth. Cleaner is also called foaming agent. As the name implies, it makes toothpaste foam when rubbing the tooth surface, emulsifying the soft dirt on the tooth surface and making it easier to remove. The main function of other ingredients is to maintain the shape, pleasant smell and taste of toothpaste and prevent the growth of microorganisms.

Is whitening toothpaste what?

Corresponding to traditional toothpastes, some toothpastes add various special functional ingredients to the basic ingredients, giving toothpastes more functions. For example, adding fluorine preparations can prevent dental caries; Some potassium preparations and additives blocking dentin tubules can effectively relieve dentin sensitivity.

The word “whitening toothpaste” is not a concept put forward by businessmen either. The active ingredient in this kind of whitening toothpaste is an oxidant, which can whiten teeth to a certain extent and reduce the exogenous coloring of teeth.

Whitening toothpaste = tooth whitening?

[Basic] The toothpaste combined with toothbrush mainly uses the function of mechanical cleaning of tooth surface through friction agent, which can remove food residue, plaque and calm and unstable pigment remaining on tooth surface. Whitening toothpaste is the icing on the cake on this basis and has better effect.

Therefore, strictly speaking, neither ordinary toothpaste nor whitening toothpaste can make our teeth [whiter]. Their most important function is to make our teeth [restore] to their original color. However, for teeth with serious exogenous coloring, even the best toothpaste may not be able to remove 100% pigment, so it needs to be treated by other medical methods.

How can teeth be white?

It may be the effect pursued by the advertisement, The handsome men and beautiful women in the toothpaste advertisements we have seen on TV, the Internet and other media all have very white teeth. However, in the eyes of dentists, most Chinese teeth are not so white and flawless. Normal adult teeth are mostly shiny yellowish without lesion. The reason is that the surface layer of well-developed teeth is slightly transparent enamel, while the color of dentin in the inner layer is yellowish.

We still have to return to the topic of tooth coloring. Generally speaking, exogenous coloring teeth are relatively light in coloring and easy to remove and recover, but endogenous coloring teeth are difficult to return to normal state through the use of daily oral care products.

Therefore, it still needs the intervention of dentists. Tooth washing is actually an upgraded version of brushing teeth. It can not only remove tartar, but also remove pigment (such as tea stains, smoke spots, etc.) deposited on the tooth surface very efficiently with [sandblasting treatment]. However, it is worth noting that it can still only solve tooth coloring caused by exogenous substances.

Is what tooth bleaching therapy?

For mild to moderate fluorosis teeth, tetracycline teeth, discolored unpulped teeth with relatively complete crowns, There is a relatively magical treatment method, called [tooth bleaching]. Most of them place strong oxidants such as hydrogen peroxide and urea peroxide at the crown for bleaching. Oxidants can penetrate into dentin through the tooth surface to bleach pigment. At the same time, it will also assist in using laser, infrared and cold light irradiation to increase decolorization effect. For tooth coloring after root canal therapy, dentists can also put bleach into the pulp cavity [from inside to outside] for bleaching. This is an effective treatment method for both exogenous and endogenous colored teeth.

How to do teeth turn yellow?

[Brushing], [Washing] and [Bleaching] are carried out in sequence. If the effect is still not good, make dentures, including porcelain crowns, veneers, etc., but also weigh the benefits of beauty and the sacrifices made by damaging normal tooth tissues.

Is whitening toothpaste really necessary?

Whitening toothpaste has advantages over ordinary toothpaste in whitening, but the advantages are not obvious. As long as there is no excessive expectation for whitening toothpaste, it is no harm to use it.

Responsible Editor: Fei Fei

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