The big teeth are molars, the molars in the mouth include the first molar, the second molar and the third molar, it is recommended to choose the implant restoration after the first and second molar extraction, and the third molar extraction can choose not to restore, the details are as follows. 1. First or second molar extraction: the function of these two teeth is very critical in the whole mouth, and it is recommended to perform implant restoration after extraction. Implant prosthesis has good retention and stability, which can largely restore the appearance and function of the teeth. If the patient’s alveolar bone and general health condition do not meet the requirements of implant surgery, you can choose fixed denture or removable denture to repair the missing teeth. 2. Third molar extraction: If the number of remaining teeth in the mouth is enough to exercise daily chewing function, the third molar can not be restored. For the same disease, the specific conditions of patients are different, the choice of treatment is also different, it is recommended to go to the hospital for consultation.