Electronic cigarette explosion: Case report of an emerging cause of orofacial trauma

Electronic cigarettes are a type of electronic nicotine delivery system. In the United States, electronic cigarettes have surged in popularity since their introduction to the market in 2007. Health and safety concerns primarily have focused on e-liquid/aerosol composition and whether these devices represent a gateway versus lower risk alternative to conventional cigarettes. Furthermore, recent incidents have demonstrated the potential for significant orofacial injury caused by device explosion while in use. Herein we report a case of a 20-year-old male who sustained oral burns, lacerations, and tooth loss when an electronic cigarette exploded in his mouth shortly after he charged the battery. Only seven other cases of trauma from intraoral electronic cigarette explosions have been reported in the scientific literature to date, although several similar incidents also have been reported by the news media. Treatment of such patients often requires a multidisciplinary approach. Design/manufacturing issues and improper handling may cause an increase in internal battery temperature. An investigation by the United States Fire Administration concluded that user education may aid in preventing some electronic cigarette explosions, and safety design improvements also could help. Although some studies and authorities support the use of electronic cigarettes for tobacco cessation and harm reduction, recent reports of electronic cigarette explosions raise important safety concerns and point to the need for further studies.