Excessive use of fluorine-containing articles may cause fluorosis, thus damaging the nervous system and causing osteoporosis. This is also the reason why the Belgian government proposed to ban fluorine-containing health care products. The application of fluoride can be divided into two categories: one is systemic application, including drinking water fluoride, salt fluoride, milk fluoride, fluoride tablets, fluoride drops and so on. At present, this kind of application has not been recommended in China; The other is local application, including fluoride toothpaste, fluoride mouthwash and fluoride protective paint. Compared with foreign countries, the application time of fluoride in China is short and the scope is small. Except for the wide application of fluoride toothpaste, there are few other methods to use fluoride.
According to Tang, an expert from Jinan Stomatological Hospital, high fluoride content in the body has a great influence on teeth. If chronic fluorosis occurs, permanent teeth will be dull and white, moderate poisoning will turn yellow, and deep poisoning will lose teeth. On the other hand, people will get fluorosis, and there are many protrusions on the bone surface. Some bone spurs in the elderly may be caused by fluorosis. 10 years ago, when Director Zhang Zhan conducted an oral health survey in Weifang City, Shandong Province, he found that almost all young people had dental fluorosis. After examining their arms, he found that they all had protrusions on their radii. After investigation, it is found that this area belongs to the high fluorine area, and if fluoride is ingested in other ways in the high fluorine area, the degree of fluorosis may be aggravated. Fu Weimin, chief physician of the internal medicine department of Jiangsu Provincial Hospital of Traditional Chinese Medicine, believes that the lack of fluoride in human body will show some nervous system diseases such as emotional instability, but this situation is rare in China, and there is no need to deliberately supplement fluoride-containing foods in life.