Battrum DE, Gutmann JL. Implications, prevention, an(d management of subcutaneous emphysema during endodontic treatment. Endod Dent Traumatol 1995; 11: 109^114. © Munksgaard, 1995.Abstract -Subcutaneous emphysema (SCE) is a possible complication of both nonsurgical and surgical endodontic treatment. A review of the literature pertinent to endodontic intervention and SCE is highlighted, while the causes of and recommendations for the prevention of SCE are provided. A review of the pathways whereby compressed air may travel through potential spaces in the head and neck is also illustrated in an attempt to identify the possibility' of morbidity and even mortality should operator induced SCE occur in a patient.