Can someone get a sinus infection caused by wisdom teeth extraction?

Yes: Molar tooth roots can extend into the maxillary (cheek) sinuses. During a difficult extraction of molar teeth, the bone and mucosal lining around the tooth and sinus floor can get disrupted creating an opening between the mouth and sinus cavity. This opening or fistula, by introducing oral cavity bacteria into the sinus, can lead to sinus disease.

Yes: But only if the tooth was in the upper jaw and the root of the tooth was in the sinus to begin with. The dentist who performed the extraction should be notified as sometimes a fistula may form from the mouth to the sinus--not fun!

Yes: Wisdom teeth as well as several posterior teeth in the maxilla are in close proximity to the maxillary sinus. The maxillary sinus can sometimes be involved during the removal of almost any maxillary posterior tooth, which may lead to an infection of the maxillary sinus.