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 In recent years, more and more opinions about what a professional teeth whitening can destroy tooth enamel. But recent studies have shown the opposite. Enamel sometimes more breaks from everyday products than from the bleaching. Beautiful white teeth - it is quite safe. What is dangerous?
The study was conducted by scientists from the University of Rochester in the United States and the Institute of the oral cavity. And their data. The concentration of hydrogen peroxide used in professional products, whitening teeth, does not cause significant changes in the enamel.
In contrast, the researchers found that some everyday products, such as acidic fruit juices may have a negative effect on the hardness and the integrity of the tooth enamel. According to a group of scientists, compared with orange juice, hydrogen peroxide does not lead to any significant changes in the hardness of enamel.
The experiment was as follows. On the enamel within five days of 20 minutes worked peroxide and orange juice. After peroxide enamel hardness was reduced by only 5, 6 percent. This figure is insignificant compared with the juice. But after the orange juice lost enamel hardness by 84, 4 percent.
Scientists say that the acid contained in the juice is so strong that the tooth is virtually "washed away." More danger juices and that is soft and rough surface of tooth enamel predisposes to the development of dental caries.
Studies were also data on the use of fluoride to protect the enamel of the acids contained in fruits and juices. By consensus, scientists did not come. Some insisted that the role of fluoride in the fight against acids is insignificant, it has a very limited effect. Although in general, researchers agree that high levels of fluoride can somehow resist acid contained in some juices.
Author: myCharm: Julia Gnedina
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