Hu Zheqin, deputy director of the Department of Stomatology of Hubei Maternal and Child Health Hospital, pointed out in an interview with Wuhan Evening News that in most cases, dental fluorosis has nothing to do with the use of fluoride toothpaste. No matter what age, the correct use of fluoride toothpaste will not endanger health. The American Children's Dentist Association suggests that fluoride toothpaste should be used as soon as you start brushing your teeth (about 1 year), and the dosage should not exceed the size of a grain of rice. The dosage of toothpaste for children aged 3-6 years should be pea-sized, not exceeding 0.5g (or the length of toothpaste extruded should not exceed 5mm). At the same time, parents should educate their children to spit out the toothpaste foam after brushing their teeth and never swallow it.
Extended data:
Fluoride toothpaste is really helpful to prevent caries.
Dentist Zhuang of Sun Yixian Memorial Hospital of Sun Yat-sen University said in an interview with Nanfang Daily that a certain amount of fluoride can promote tooth remineralization, enhance the acid resistance of hydroxyapatite, play a role in resisting bacterial adhesion, and help prevent dental caries. Both the fluorination of drinking water and the use of fluoride toothpaste have obvious caries prevention effects. "Health Times" also pointed out that proper intake of fluoride can reduce the occurrence of dental caries, and many children like to drink carbonated drinks, fruit juice and so on. So from the point of view of dental care, it is still beneficial to use fluoride toothpaste.
0~6 years old is the key period of tooth development. After the age of 6, the tooth development is completed, and no matter how much fluoride is ingested, it will not cause dental fluorosis. According to the severity, dental fluorosis can be divided into suspicious, extremely light, mild, moderate and severe. Many people suffer from dental fluorosis mainly because the concentration of fluorine in the water they live in when they were young (mainly before the age of 3) is too high, and the water they drink every day contains a lot of fluorine.
References:
People's Daily Online-Can children use fluoride toothpaste? Proper use will not lead to dental fluorosis.