Nearly 11% of patients examined at trauma centers following motor vehicle collisions had at least one facial fracture, and airbags and seat belts were associated with reduced likelihood of those fractures, according to an article published online by JAMA Facial Plastic Surgery.

The National Highway Traffic Safety Administration reported 2.3 million people were injured and 32,719 people were killed in motor vehicle collisions (MVCs) in 2013.

MVCs are a significant source of the facial fractures treated at U.S. trauma centers.