GRAPHIC: Hawaii man seriously hurt after e cig explodes in mouth Vape pen explodes, knocking out teen's teeth and shattering his jaw A 17 year old boy was using an e cigarette when the device suddenly exploded in his mouth, causing severe facial trauma. The blast was powerful enough to fracture and shatter his lower jaw, leaving a E Cigarette Exploded in a Teenager's Mouth, Damaging His Jaw The New York Times