A cracked tooth does not always need to be extracted, but can be treated first, depending on the direction of the split and the depth of the split. If the crack is oblique, and the degree of cracking is up to the edge of the gums, you can remove the cracked piece of the tooth and then do a full crown restoration treatment to restore the form and function of the tooth. If there are symptoms of nerve damage, root canal treatment followed by full crown restoration is required. If the tooth is vertically split, and at the same time, the degree of split reaches the root of the tooth or the bottom of the pulp chamber, at this time, the tooth has been split into two parts, and it is often difficult to preserve the tooth for treatment, and can only accept the extraction treatment. People with cracked teeth need to go to the stomatology department of a regular hospital to receive an examination, and under the guidance of the doctor, receive tooth preservation or extraction treatment depending on the degree of cracking and the situation. In daily life, patients are advised to take care of their teeth, clean them regularly and not to eat too hard food.