1. Permanent teeth erupt and deciduous teeth need to be pulled out.
Generally, the deciduous teeth will automatically fall off before the permanent teeth erupt, but some children's permanent teeth have already grown out, while the corresponding deciduous teeth are as stubborn as ever, refusing to "give way", forcing the permanent teeth to grow out of the inner side of the deciduous teeth, forming a "double-layer tooth". Experts suggest that when children have double-layer teeth, they should pull out the deciduous teeth, otherwise the teeth will be arranged irregularly and the occlusion will be incorrect.
2. Overeating is prone to "double teeth"
It is understood that most children now have "double teeth" mainly because the diet is too fine, the chewing function of teeth is reduced, and the jaw bone is stunted. Many people don't know that chewing food can promote the growth, natural absorption and shedding of deciduous teeth. So mothers should let their children eat more fruits and vegetables, such as celery, peanuts, apples, sugar cane and other chewy foods.
How to make the baby have a beautiful tooth?
First of all, we should limit the sweets in children's diet and don't let children eat too many snacks, sweets and cakes. A few minutes after eating sugar, children should drink a little boiled water or rinse their mouths with water to avoid the rapid rise of oral acidity after eating sugar and form dental caries. Avoid the baby sleeping with the nipple. After the child falls asleep, the saliva secretion and swallowing action are greatly reduced. The milk trapped in the mouth provides sufficient nutrition for bacterial reproduction and can promote the formation of dental caries.
Secondly, supplement enough nutrition. Let children eat foods rich in protein, calcium, phosphorus, vitamins A and D, which can promote the development and firmness of teeth. On the contrary, the supply of nutrients is insufficient, and children not only delay teething, but also the teeth that have already grown are easily corroded by bacteria and have dental caries. Children 10 months, two and a half years old, five years old, is the key moment of tooth development. They should pay attention to eat more milk, meat, fish, bean products, shrimp skin, carrots, hawthorn, spinach and so on.
Third, eat some fluorine-containing foods properly. Fluorine is an indispensable substance to keep teeth healthy. It can exist in enamel in the form of calcium fluoride and fluorapatite, and has the functions of acid resistance and caries prevention. Foods containing more fluorine include lettuce, kelp and shrimp. You can choose to give it to your child.
Fourth, exercise the compactness of children's teeth. You can deliberately give your child some rough or cellulose-rich fruits and vegetables. When these foods are chewed in the mouth, they have obvious friction and cleaning effects, which can not only stimulate tooth growth, but also strengthen periodontal tissue structure, thus reducing and preventing dental caries.
Fifth, pay attention to oral hygiene. Parents with dental caries should not chew up food and feed it to their children, so as not to spread the bacteria of dental caries to their children's mouths (even if there is no dental caries). 1.5 years old children can be taught to rinse their mouths with warm water after meals or before going to bed. Children aged 2~3 should cultivate the habit of brushing their teeth after 20 deciduous teeth come out, and pay attention to the correct method. When brushing your teeth, brush your upper teeth downwards, brush your lower teeth upwards, and brush back and forth, inside and outside. Don't eat sweets after brushing your teeth at night and before going to bed. Children who are too young can be scrubbed by their parents with clean gauze or cotton swabs.