Generally, the pain after extraction of large teeth lasts about 3 to 5 days and can be recovered, but some large teeth are difficult to extract, the pain time may be relatively extended to 7 to 10 days. 1. Under general circumstances: after extraction of large teeth due to the molar tooth root is long and belongs to multiple roots, after extraction of large trauma, so after extraction of 2-3 days there may be obvious pain, generally the third day after the pain slowly eliminated, to the fifth day will basically return to normal, during the period of time you need to pay attention to try to avoid eating too high a temperature as well as too hard food, to avoid damage to the wounds aggravate the pain. 2. Special case: some big teeth roots are too big, the difficulty of extraction is also relatively greater, need to use the turbine handpiece for root splitting before extracting the affected teeth, in this case, the wound damage after extraction is bigger, and the pain may be relatively aggravated, and may last for 5 to 7 days. 3. Obstructed wisdom teeth: In addition, for the teeth that appear to be obstructed in the near middle, horizontal, and buried, it may be necessary to cut the gums, turn the flap, and remove the bone and other difficult operations to extract the large teeth, and the alveolar bone trauma is large, and the soft tissues may also have a certain degree of edema, and the pain basically lasts for 7 to 10 days.