At the age of 50, the second molar is extracted and the third molar still needs to be retained. The second molar and third molar are both more important teeth, after the second molar extraction may have a certain impact on the later food grinding, you need to timely dental implant restoration, can also be placed in the movable denture or fixed denture, which can achieve better results. After the second molar is extracted, the third molar basically will not have a greater impact, as long as the third molar does not have any abnormalities, no loosening and no overgrowth, generally need to be retained. Usually need to pay attention to more observation of personal teeth, if you find that there are obvious abnormalities in tooth function, loosening, pain and other symptoms, it is recommended to actively seek medical attention.