Whether a dental stump is necessary or not needs to be determined by the doctor based on the condition of the affected tooth. Dental stumps are necessary because they can stabilize a hollow tooth to some extent instead of the root, avoiding the treated tooth from breaking after insufficient stress. When a patient undergoes root canal treatment, the pulp and nerve inside his/her tooth have been evacuated and removed. At this point, the patient’s tooth has lost its normal blood flow, and the decayed and removed tissues in the middle cannot be regenerated, so it is necessary to fill the hollow in the middle with a dental special stump to avoid rupture of the tooth in the process of tooth use. Dental stumps are mainly bonded to the root of the hollow tooth using a special adhesive under the operation of a doctor, which is usually harmless to the human body. Dental stumps are mainly silver alloy stumps and fiber stumps. The more commonly used stumps are glass fiber stumps, which have better fiber compatibility and hardness, and in addition, they do not have any interference in the case of taking CT or MRI, so most doctors will choose them. Therefore, patients are advised to choose the treatment that suits their needs according to their doctors.