A bruised incisor should first be examined in the hospital to see if there are any other parts of the fall. For example, in addition to the incisor fall, there are any fractures at the root of the tooth and any fracture of the tooth root. If necessary, the doctor will give you special tests and take x-rays to clarify the diagnosis for treatment. Generally speaking, the treatment varies depending on the degree of the incisor fall. If the bruised incisor is only slightly loose and there is no other feeling, you can not do any treatment, as long as you do not chew with the incisor, so that the upper and lower incisors do not touch. If the loosening is obvious, the doctor can simply fix it. If the incisor is knocked off a small corner, the pulp is not damaged, and the root is not loose, after the doctor’s treatment, a retaining nail is made in the defective part, and the composite resin material with the same color as the tooth is restored, so that the shape and color of the restored tooth are in harmony with the neighboring teeth. If a small part of the tooth is broken and involves the pulp, the pulp is exposed, sensitive to hot and cold, and even painful. In this case, pulp treatment should be performed first. The remaining crown is then prepared and a plastic crown or porcelain crown is made on top of it. They look and color like your own real teeth, and they are comfortable in your mouth without foreign body sensation. However, they should not be used to gnaw on hard foods, as they may chip. If the crown is largely fractured and the pulp is exposed, a perfect root canal treatment should be performed, i.e., the pulp and nerve should be taken out, the root canal should be filled, a pile should be made using the root, and another tooth should be set on this pile. If an incisor is knocked out, don’t be nervous. First, rinse the lost tooth with water, but do not rub it with anything. Then soak it in milk or hold it in your mouth. Get to the hospital as soon as possible (preferably within thirty minutes). Depending on the situation, the doctor will reinsert the tooth into the original socket and then fix the tooth to the next tooth for one or two months. This method is called “tooth reimplantation”. In conclusion, it is important to go to the hospital as soon as possible after the incisors are hit, otherwise, it will be a lifelong regret if you miss the treatment.