Subcutaneous Facial Emphysema Secondary to Use of the Cavi‐Jet

A case of subcutaneous facial emphysema secondary to use of the Cavi‐Jet air polishing system is reported. Air pressure of the Cavi‐Jet may exceed that of other dental instruments such as the air/water syringe or air turbine handpiece. Inadvertent angulation of the nozzle tip into a severe periodontal pocket precipitated this condition, which resolved with no serious sequelae. No treatment other than prophylactic antibiotics was prescribed.