How long does it take for children's teeth to fall out when they are loose? Which teeth should not be replaced when children are replaced?

It is a very normal phenomenon for children to replace their teeth. When children grow to a certain age, they will replace their teeth. However, some parents find that their children's teeth have become loose but have not fallen out. So let's find out how long it takes for children's teeth to become loose and fall out? Which teeth do children not replace?

Because everyone's situation is different, sometimes loose teeth will be replaced in about a week, and sometimes permanent teeth have grown, but deciduous teeth have not fallen out. There is a certain time and order for deciduous teeth to fall out. If they should fall out but do not, it is called retained deciduous teeth, and the consequence is often that permanent teeth cannot erupt in the normal position. Most children start to change their teeth at the age of five or six, and some start at the age of four. Some children will not lose their first deciduous teeth until they are 7-8 years old. When it is found that the child's deciduous teeth have not fallen out, new teeth have grown from the side, which looks like "double rows of teeth". At this time, you should take your child to the hospital as soon as possible to remove the retained deciduous teeth and make room for the permanent teeth to erupt; if the deciduous teeth fall out before they should fall out, it is called premature loss of deciduous teeth, which often causes the adjacent teeth on both sides to tilt toward the gap between the missing teeth, making the gap between the missing teeth smaller, and the permanent teeth erupt misplaced due to insufficient space. At this time, a gap maintainer (customized by a pediatric dentist) should be worn at the gap between the deciduous teeth to prevent the teeth on both sides from tilting, so as to maintain the proper eruption position of the permanent teeth until the permanent teeth erupt.

Generally speaking, children start to replace their teeth when they are six or seven years old. Children have both deciduous teeth and permanent teeth during their growth period. The replacement of deciduous teeth and permanent teeth is very important. When children are six or seven years old, the incisors and lateral incisors in the mandible will erupt, and then the central incisors and lateral incisors in the maxilla will erupt one after another. The eight teeth in the front teeth erupt relatively early and are easy to be found. They are also teeth that will not be replaced after the replacement is completed. The eruption of the sixth-year molars in the child's mouth is also a new tooth and will not be replaced. Children usually start to replace their teeth at the age of 6, some early and some late. Usually around 12 years old. Replace the front teeth first, and then replace the big teeth at the back. When a child is about 7 years old, the deciduous teeth will fall off and be replaced by permanent teeth. Generally, new teeth will grow about a month after the teeth fall off. If it is found that new teeth have not grown for a long time, it may be caused by calcium deficiency in the child. Therefore, when children are changing their teeth, dietary conditioning is very important. It is necessary to give children more foods with relatively high calcium content. In addition, it is very important to do a good job of oral hygiene. Parents should supervise their children during the period of tooth replacement to ensure that their children can change their teeth healthily and smoothly.

Children do not need to take calcium tablets when their teeth are changing. Most parents who need to take calcium tablets during their children's tooth replacement hope that their children's teeth will have a better degree of calcification. New permanent teeth are healthier, but what we don't know is that our teeth have basically completed their calcification when they are replaced. To be more exaggerated, even in the fetal period, the deciduous teeth have basically completed their calcification, and the calcification of permanent teeth is generally completed before the age of six, so taking calcium tablets during the tooth replacement period will have no effect. On the other hand, with the current economic situation and children's eating level, as long as children can eat normally and healthily, most of the elements can be fully supplied, and there is no need to add calcium tablets to supplement calcium.

If half of the child's replacement teeth have fallen out, you should take the child to the oral department of a regular hospital, or the pediatric dentistry department of a dental specialist hospital for a detailed examination. You may need to take an X-ray to see if the tooth is half of the deciduous tooth and whether there are any residual roots inside. If there are residual roots inside, you need to remove the residual roots of the deciduous teeth in time to avoid affecting the eruption of permanent teeth; it is also possible that the deciduous teeth have fallen out and their roots have been physiologically absorbed and are gone. This is a normal phenomenon and you can ignore it. It is recommended that children must pay attention to oral hygiene, brush their teeth in the morning and evening, and rinse their mouths after meals.