Playing with children in the neighborhood, running around the house, sitting on the stool, children who are active by nature have a lot of fun during the winter holidays, but at the same time, children’s dental trauma during the winter holidays has increased dramatically. According to statistics, children’s dental trauma mostly occurs between the ages of 2 and 4 years old, and children at this stage are active, can walk but can’t walk steadily, easily fall and lack of awareness of danger and self-protection, often breaking their lips and knocking out their incisors. Another high incidence stage is 7 to 9 years old, the incidence of permanent tooth trauma accounted for about 50% to 70%, and more boys than girls. Because the incisors are at the front of the face, they are the most likely to be injured in an accident, causing them to loosen, shift, fall out or break. “When a child has a broken incisor, many parents ask where the broken tooth is and say it’s at home or they can’t find it, and when they get it, the roots are dry.” Experts emphasize that if a child suffers a traumatic tooth injury and experiences severe pain, local swelling and inability to eat, parents must not panic and must bring the broken tooth to the clinic, because on the one hand, immediate replantation can result in a high survival rate of the living tooth root, and the replanted tooth is less likely to fall out in the future and has a long life span. For teeth that have fallen out, you can simply rinse them at home, taking care not to scrape the surface of the roots with sharp instruments, and soak them in saline or milk, or you can hold them in your mouth and go to the hospital quickly. Parents should not wipe the broken or shaken tooth themselves, as this can increase the child’s pain and fear, and excessive force can aggravate the traumatic damage and have a negative impact on the subsequent treatment. If the impact or blow to the tooth is not too strong, the injured tooth may be asymptomatic or may only feel discomfort in the upper and lower bite and soreness in the tooth. Even if the tooth is not broken, it is important to seek medical attention, review it regularly, and avoid chewing food with the affected tooth for at least two weeks. This is because regardless of the severity of the injury, it may lead to long-term pulpal necrosis, crown discoloration, and pulpal calcification.