CCTV News:White teeth are the goal pursued by many beauty lovers. Recently, many beauty bloggers and anchors on the online sales platform have recommended different brands of whitening stickers. Does this tooth beauty tool have any effect? What about security?
On the website of an e-commerce platform, the reporter searched for "tooth whitening", and hundreds of varieties of whitening stickers popped up on the page, with prices ranging from 30 yuan to several hundred yuan. The reporter selected some products with good sales and found that these whitening stickers all advertised "effective in seven days and five days", but there was polarization in the comment area. Some people say that the teeth are really white for several degrees after use, but others say that it has no effect and even has problems such as toothache and sensitivity.
There is a risk of tooth damage by decomposing pigment with peroxide.
Dentists said that the principle of partial whitening plaster is to use peroxide to decompose tooth surface pigment to achieve the purpose of whitening. At present, there is no industry standard for this kind of bleaching products. Generally, the concentration of peroxide is controlled below 10%, and the bleaching effect is mediocre, so it is not excluded that some businesses will take risks to increase the concentration in order to make their products have immediate effects.
Yuan Zhi, Deputy Chief Physician of Stomatology Center of Yunnan First People’s Hospital:When the concentration of peroxide is too high, it will cause some damage to teeth. If you are sensitive to teeth, long-term use will also aggravate the sensitivity of teeth.
Resin plaster is very harmful to teeth.
In addition to whitening tooth paste, there is also a kind of tooth paste made of resin which is also popular among the public. This kind of resin plaster is pasted on the teeth to cover the original color of the teeth and achieve the whitening effect. Dentists said that this kind of whitening tooth paste claims that it can be pasted directly without preparing teeth. In fact, this practice is extremely harmful to teeth.
Yuan Zhi, Deputy Chief Physician of Stomatology Center of Yunnan First People’s Hospital:If the tooth patch is directly selected to cover the color of teeth without preparing teeth, a hanging process with a relatively large edge will be formed, and food residues will accumulate in this area. As time goes by, these residues will stimulate the gums, and the gums will become inflamed and bleed slowly. We have also met many such patients and asked us to remove the prosthesis.
Yellowing of teeth is a normal phenomenon without whitening.
According to the dentist, both whitening tooth patches and resin whitening tooth patches need to be selected under the guidance of professional doctors, because the reasons for tooth discoloration are different, and the most suitable method needs to be evaluated and selected. In addition, many people’s yellow teeth are actually normal yellowish and do not need whitening.
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