When a tooth is cracked in half, you can choose to keep part of the tooth or remove the tooth depending on the condition of the crack. 1. Retaining a part of the tooth: If one half of the tooth is very small and is above or a short distance below the gums, this small part of the tooth can be extracted first and root canal treatment can be performed on the remaining tooth. After two weeks of root canal treatment without pain or discomfort, the tooth will be restored to its original shape and chewing function with a dental crown in time. 2. Tooth extraction: the tooth is cracked in half, the cracked position is deeper and most of the tooth is cracked, there is little significance to keep the tooth, you can choose dental implant restoration or other prosthetic restoration according to the situation. If the tooth is cracked in two halves, go to the hospital in time to determine the most reasonable treatment plan after the doctor’s examination.