The correct term for a large tooth should be a molar. Large dental defects occurring in molar teeth can be restored with either a dental crown or a fixed partial denture, as follows. 1. Pile core crown restoration: Because the remaining tooth tissue may not be able to provide sufficient retention and resistance, a pile core can be used to provide support and retention for a full crown restoration, which consists of a pile inserted into the root canal, a core consisting of metallic or non-metallic and remaining tooth tissue connected to the pile, and a crown used to restore the shape and function of the crown. 2. Implant prosthetic restoration: If the affected teeth are missing too much or accompanied by periodontitis and other diseases, the prognosis of stump core crown restoration is poor, and the affected teeth can be extracted to make a fixed partial denture to restore the missing teeth. The same disease, the patient’s situation is different, the choice of treatment is different, it is recommended to go to the hospital for targeted treatment.