Two cases of subcutaneous emphysema associated with the use of the air turbine hand-piece in dental treatment of the lower right third molar of a 26-year male and of a 32-year old female are reported. In the process, where sectioning had to be performed, there was sudden swelling of the right side of the face. The cause and probable course of subcutaneous emphysema were explained to the patient by the attending dentist, and the patient's consent for the medical treatment was obt ained. Every dentist should be aware of the possible occurrence of emphysema and its management. This is a report of 2 cases of emphysema occurring after tooth extraction and includes a review of the literature.
