Abstract

Subcutaneous emphysema is the condition in which air penetrate the subcutaneous space causing soft-tissue distention. It may be traumatic, iatrogenic or may occur spontaneously. Its appearance is rare after dental procedures and has not been reported associated to dentofacial orthopedics. We report the case of a patient who developed subcutaneous emphysema after a trauma from a Herbst-type mandibular advancement appliance.

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