Precautions for changing teeth:
1. Tooth changing time: The time for children to change their teeth is about 6 years old. Before changing teeth, there are 20 teeth in the mouth, which are called deciduous teeth. Teeth that replace deciduous teeth are called permanent teeth. They stay in the mouth for a long time and have 28 or 32 teeth. Generally speaking, each deciduous tooth will be replaced by the corresponding permanent tooth under its root. From the first permanent molar (commonly known as 6-year-old tooth) to the third permanent molar, it does not replace any teeth. Some people think that the idea that the first permanent molar will be replaced is wrong.
2. Tooth changing sequence: The first tooth to be changed is the maxillary central incisor, which is about half a year later. Then the mandibular lateral incisors ... The closer to the posterior teeth, the later the replacement time. Tooth replacement is a natural physiological phenomenon. The roots of deciduous teeth will gradually be absorbed by the permanent teeth below. Finally, only the crowns of deciduous teeth will adhere to the gums, and any slightly hard food will fall off. Therefore, there is no need to artificially pull out the deciduous teeth and let the permanent teeth grow out. Premature manual extraction of deciduous teeth will hinder the smooth eruption of permanent teeth.
3. What are the reasons why deciduous teeth should not fall off? Some deciduous teeth don't fall off when they reach a certain age, so X-rays are needed. Don't worry if there are permanent tooth germs under the root of deciduous teeth and the root of deciduous teeth is absorbed. When permanent teeth erupt, deciduous teeth will naturally fall off. If there is no absorption at all, the permanent teeth have erupted from the lingual side of the breast. You need to pull out your baby teeth. Let the permanent teeth grow to the normal position; If there is no permanent tooth germ at the root of deciduous teeth. It is called congenital absence of permanent teeth. It is necessary to protect this deciduous tooth and let it take the place of permanent teeth for functional chewing.
4. What should I do if the permanent teeth don't grow after the deciduous teeth fall off? Permanent teeth should erupt with deciduous teeth falling off. If the permanent teeth don't erupt after 3 months, you should go to the stomatology department for X-ray examination. The common causes are ① congenital absence of permanent teeth; ② The eruption position of permanent teeth is incorrect and temporarily blocked; ③ The eruption direction of jaw permanent teeth is abnormal (some even grow backwards and obliquely); ④ The resistance of gingival surface is too great. The latter two situations need to be dealt with in time.
5. Is it necessary to correct the crowded tooth arrangement when changing teeth? Tooth replacement is the most common dentition crowding, especially the lower incisors. This is because the size of permanent teeth is larger than the original deciduous teeth, and the jaw bone is not fully developed, which leads to the insufficient position of permanent teeth on the jaw bone. With the growth and development of children, the volume of jaws will also increase, and some children's lower incisors will automatically relieve. So this situation does not need to be corrected for the time being. Give children more hard food to stimulate jaw development. Don't pull out the adjacent deciduous teeth, so as not to "overdraw" the teeth in advance, which will lead to further crowding of dentition.
6. What if there is a gap between teeth? The most common crevice occurs between two maxillary permanent central incisors, 90% of which is a temporary phenomenon. The reason is that the crown of unexplored lateral incisors is close to the side of central incisors. With the eruption of lateral incisors, the teeth of central incisors will automatically close, and only a few cases are pathological and need treatment, such as a supernumerary tooth with impacted alveolar bone between central incisors and low adhesion of upper lip ligament.
7. Jaw dysplasia needs early treatment. Most people only pay attention to the problems of uneven tooth arrangement, too large tooth gap and too late tooth emergence, while ignoring the deformity of children's jaw development. Common mandibular retraction, floor covering, chin deviation and so on. Contrary to the crowding of dentition that needs to be corrected after tooth replacement, jaw dysplasia should be treated as soon as possible. This is because the peak of children's jaw development is about eight to thirteen years old (that is, during tooth changing). Early treatment can correct abnormal jaw development and restore normal growth. For example, after the age of thirteen, the jaw bone has basically stopped developing, and the treatment effect is not good. Severe cases need surgery.
8. Bad oral habits need to be corrected early. Common bad oral habits include biting the lower lip, letting the thumb, breathing while sleeping, and sticking out the tongue. Because these bad habits are important reasons for the abnormal tooth arrangement and jaw development when children change their teeth. Dentists and parents are needed to help children correct these bad habits and ensure the smooth growth of teeth and jaws.