If a large tooth is cracked in two halves, if it is a crown crack, you can remove the crack and perform a direct filling, or you can also do a full crown restoration or an inlay restoration. If the two halves of the big tooth are crown-root fracture and need extraction treatment, first of all, systemic diseases such as hypertension, diabetes, heart disease should be ruled out, women should avoid menstruation, and elderly people should avoid anticoagulant drugs so that extraction can be started. After the extraction of the affected tooth, it is recommended not to brush or rinse the mouth for 24 hours, and a removable denture can be restored in about 1-3 months after the extraction, and a fixed denture can be restored in more than 3 months. In case of free end loss, implant restoration is recommended, but it needs to be observed for more than 4-6 months.