There are a number of possible causes of facial trauma. Motor vehicle accidents, accidental falls, sports injuries, interpersonal violence, dog bites and work-related injuries account for many. Types of facial injuries can range from injuries of teeth, to extremely severe injuries of the skin and bones of the face. Typically, facial injuries are classified as either soft tissue injuries (skin and gums), bone injuries (fractures), or injuries to special regions (such as the eyes, facial nerves or the salivary glands).