In some areas of our country, such as Chaoshan area and Shanxi area where there are many coal mines, the groundwater itself contains high fluorine, and local residents do not remove fluorine when drinking this water, and long-term excessive intake of fluorine leads to chronic poisoning. Mild poisoning can cause dental fluorosis, and a few severe poisoning can lead to skeletal fluorosis. The tooth surface of patients with dental fluorosis will appear chalk spots or even punctate pits, which will turn yellow-brown due to dentin exposure and coloring. The myth that "water with high fluorine content will lead to yellowing of teeth" actually means that excessive intake of fluorine will lead to dental fluorosis. People in these areas should stop using fluoride toothpaste.
It should be pointed out that relevant measures have been taken to reduce the fluoride concentration in drinking water of residents in high fluoride areas, and the incidence of dental fluorosis in people in high fluoride areas has decreased.
2. Fluoride toothpaste is not suitable for babies. Nowadays, there are many kinds of children's toothpaste. From the packaging, taste and paste color, there are more patterns than adult toothpaste: strawberry flavor, citrus flavor and peach flavor, with countless flavors; Pink, light green, rainbow stripes, colorful colors.
Brushing your baby's teeth is a university question. Fluoride toothpaste, foam toothpaste and medicated toothpaste are not suitable for children, so parents should pay special attention. "First of all, children under 6 years old should not use fluoride toothpaste. Topical use of fluoride can prevent dental caries, but children use fluoride toothpaste to brush their teeth. Once swallowed, the total daily intake of fluoride will exceed normal needs, which will have a certain impact on children's development and health. "
According to relevant experts, children under 6 years old have poor swallowing function and are not skilled in brushing their teeth. They often leave more toothpaste between their teeth and even swallow mouthwash into their stomachs. If you use fluoride toothpaste for a long time, it will lead to an increase in fluoride intake in your body, resulting in "fluorosis" (commonly known as "macular teeth").
Moreover, children should not use foam toothpaste. "Toothpaste is divided into three types: multi-foam, medium foam and less foam. The amount of foam depends on its soap content. Foamed toothpaste has a high soap content and is easy to stimulate the oral mucosa in the mouth. "
The proportion of children suffering from dental diseases is very high, so many parents will give their children long-term use of medicated toothpaste. However, Shi Jianjie said that although medicinal toothpaste has a certain effect on oral diseases, long-term use will affect children's oral hygiene.
For example, long-term use of anti-inflammatory tooth care toothpaste will not only make pathogenic bacteria in the mouth resistant, but also kill some normal bacteria in the mouth, which may lead to new infections.
Fluoride toothpaste is not suitable for babies. In addition, many medicinal toothpastes contain alkaloids and irritating substances, which may cause gingivitis and oral inflammation after long-term use.