Hollow teeth need to be treated with fillings, root canals, and in severe cases, extractions, depending on the situation. 1. Dental filling treatment: the tooth is hollow, if it just involves deeper dentin when there is no nerve symptoms need to be cushioned to protect the tooth after filling treatment can be effectively cured. 2. Root canal treatment: if deeper, there are obvious symptoms, you need to consult the doctor in time to see if the pulp chamber of the tooth is destroyed, if the bottom of the pulp chamber is more intact, the tooth is not loose, this situation can be retained teeth, do perfect root canal treatment for the pile after the nuclear crown or crown restoration for protection. 3. Extraction: If the bottom of the pulp chamber has been penetrated, involving the root bifurcation has been destroyed, the tooth has no preservation value, and needs to be extracted as soon as possible to avoid inflammation and pain. If the tooth has early caries to avoid hollowing out, it is recommended to seek medical examination and treatment in time.