Inside the tooth cracked in two halves, you need to go to the hospital dental treatment in time to decide whether to conservative treatment, or extraction treatment. 1. Conservative treatment: If the tooth is cracked to a shallow degree, the cracked part is usually ground off, and then localized protection is provided with resin; if the dentin is damaged, resulting in toothache, root canal treatment can be carried out, or a crown can be worn for protection. 2. Need to extract the tooth: If the tooth inside is cracked in half and broken to the root, it needs to be extracted, and then install a denture or take dental implants. If the tooth inside is split in half, whether it is broken longitudinally or horizontally, you should go to the hospital as soon as possible for checkups and follow the doctor’s instructions for treatment.