Recently, a teacher in Hangzhou saved a student's knocked out tooth in fresh milk and urgently sought medical attention, successfully saving one tooth for the child and making it a hot topic. What's the use of knocked out teeth? Why should it be stored in pure milk? Can it be difficult to replace a lost tooth like a severed limb? That's right! Properly preserved and handled in a timely manner, it is possible to implant lost teeth back into the oral cavity. Come and learn from the doctor the emergency response methods for a child's tooth loss. Returning lost teeth to their original position is the best option. When it comes to dental trauma, many people's first reaction is to "knock out their teeth.". The complete loss of teeth, professionally known as complete tooth loss, is the most serious form of dental trauma. The correct emergency treatment after tooth loss has a significant impact on the success of subsequent treatment by doctors, so we must master the emergency treatment methods after complete tooth loss. Firstly, stay calm and be sure to find the teeth. If you can find the teeth, be careful to pinch the crown and avoid touching the root as much as possible. The surface of the root has a periodontal membrane, which is crucial for the success of tooth replantation after detachment. However, it is also fragile and easily damaged, so try not to pinch the root! If the teeth are relatively clean and the alveolar cavity is also clear, the teeth can be immediately placed back in place. After a tooth injury occurs, parents or adult friends present must try their best to help the child put the dislocated teeth back into the alveolar cavity, and use clean gauze or handkerchief to bite and fix the dislocated teeth. The success rate of replantation within 30 minutes is high. If the surface of the teeth is very dirty, then pinch the crown and gently rinse the roots with physiological saline, low-temperature milk, or water. Do not vigorously brush the roots, nor use soap or other cleaning agents. The reason is still to protect the periodontal membrane on the surface of the roots! After rinsing, it is best to be able to return it to its original position. If not possible, it can be stored in low-temperature milk. Remember to use pure milk and avoid using breakfast milk, seasoned milk, and so on. Of course, it can also be placed in physiological saline. In addition, it is also possible to place lost teeth under the tongue or in the mouth, but be careful not to swallow them, which is equivalent to storing teeth in saliva. If none of the above methods are possible, you can also gently wrap the teeth with cling film. In short, it is important to keep the roots moist and not let them dry. Do not use toilet paper or dry gauze to wrap the teeth. Sometimes, after a tooth injury occurs, if you can't find the teeth on the ground, it's possible that the teeth are completely embedded in the alveolar bone. In this case, it's important to go to the hospital for a film as soon as possible to confirm. After finding and preserving the teeth, it is important to arrive at the hospital in a timely manner. The success rate of tooth replantation after permanent tooth loss is high within 30 minutes, but greatly reduced after 2 hours. The correct preservation method and timely medical treatment can help us improve the success rate of tooth replantation. When a baby tooth is injured and falls off, we also need to seek medical attention. Sometimes we find that the child only has a broken crown, but the root of the tooth still remains in the mouth. So what should we do at this time? The method of preserving dental crowns is similar to that of completely dislocated teeth. It is also necessary to find the broken dental crown, save it, and take it to the hospital for medical treatment as soon as possible. Sometimes, doctors can also reattach the broken dental crown to restore its original shape. It is worth noting that for deciduous teeth with traumatic detachment