Don’t panic when such a serious accident happens! If a tooth is knocked out of its socket in its entirety, be sure to find the dislodged tooth immediately. Remember: pinch the crown of the tooth and find cool boiling water or tap water nearby to rinse off the stains stuck on the surface of the tooth, but never brush the root surface of the tooth with a brush or anything else. Then put the cleaned tooth back into the socket and go back to the doctor. If you are not sure, soak the tooth in fresh cold milk or put it in your mouth under your tongue and go to the dentist without a minute’s delay. Never hold it in your hand and wrap the tooth in paper to dry it out. The shorter the time the tooth is out of the body, the greater the chance of success after replantation, and it is best to get to the dentist within 30 minutes. A tooth that has been touched loose, broken, that has even just a crack, needs to be checked out in the hospital. The age of 8 is the most common age for trauma to the permanent front teeth, when the roots of the newly erupted incisors are not yet fully developed, and prompt treatment is especially important. The same is true for bruised baby teeth, which also need to be examined in the hospital. Especially if the tooth becomes discolored, the gums become swollen or small pus pockets appear on the gums after a period of trauma, it is important to go to the hospital in time for treatment. Because in the jawbone at the root of the baby tooth, there is a growing permanent tooth embryo, and the root lesion of the baby tooth can affect the growth and development of the permanent tooth embryo when it is serious, which can cause the permanent tooth to be stunted, malformed, or even not to erupt normally, which is regrettable for the rest of your life, so you should pay attention to the trauma of the baby tooth.