Wisdom teeth extraction a month cavity is very smelly may be poor oral hygiene caused by food buildup, may also be the front neighboring teeth caries triggered by the odor, but also may be dry socket. 1. Poor oral hygiene. One month after wisdom teeth extraction, the extraction socket is not yet completely flat, during the eating process, food may accumulate and remain in the cavity inside the fermentation of odor, generally pay attention to rinse your mouth after eating and removing food debris from the cavity after the odor will disappear. 2. Caries in neighboring teeth. If the original wisdom tooth obstruction, can cause the front teeth adjacent to the distal middle of the caries, dental caries, food debris and soft dirt easily retained to cause odor. It needs to be filled in time. 3. Dry socket: If there is severe pain about 3 to 5 days after wisdom teeth extraction, and there is a rotten smell, it may be dry socket, wisdom teeth extraction one month cavities are very smelly, it is recommended to go to the hospital to check the source of odor, and timely treatment.