Traumatic dental injuries are more common in school-age children and adolescents, especially in the snowy days in the north and the southern days in Guangdong, why exactly? Because children and adolescents are in a period of vigorous physical growth and enjoy vigorous activities, but lack awareness of sports risk protection. When there is snow (water), there is an increased risk of dental trauma due to falls. 80% of dental trauma occurs in the upper front teeth, especially the incisors are more prominent (“gun shot birds, easy to break is also the head of the teeth” ah! If you have buck teeth, you should find a doctor to correct them, which can significantly reduce the risk of broken teeth). Broken teeth will not only affect our appearance, pronunciation and bite function, but also have a negative impact on mental health, and a long time without incisors may be inferiority complex Oh! Therefore, we need to restore the shape and function of the tooth in time. As dentists, we have many ways to repair broken teeth, such as porcelain, resin fillings, etc. If the broken teeth are preserved intact, we can also reattach them! With the advancement of bonding materials and techniques, the results are getting better and better! Compared with other methods, reattachment of broken teeth can have the following advantages: 1, can maintain the natural shape and color of traumatized teeth. 2. Simple, aesthetic, convenient and non-invasive. 3.Short operation time and relatively low cost. 4. As a relatively conservative treatment method, it does not affect the later treatment. Of course, the reattached broken tooth is attached with dental glue (adhesive and resin), and its firmness is not comparable to that of natural teeth or porcelain teeth, which may fall off if subjected to external force or biting hard objects again. However, reattachment of broken teeth is still a recommended method of treating broken teeth. Preservation of broken teeth After trauma, the broken crown should be located if possible and the tooth should be kept moist and can be preserved in clean water for consultation as soon as possible. (In case of complete loss of the tooth it is better to preserve it in tooth preservation solution or saline or milk to ensure the activity of the cells on the root surface.) Precautions after reattachment of a broken tooth After reattachment of a broken crown, the tooth is not strong enough for an intact tooth. Therefore, you should try to avoid another hard force trauma, avoid chewing or tearing food with the affected tooth, and pay attention to oral hygiene in general. In addition, it should be reviewed regularly for 3-6 months to maximize the service life of the broken crown.