Abstract: Objective To summarize the causes of the maxillofacial head-on collision injury in traffic accidents as well as the age, gender, nationality, distribution, treatment methods, results and experience. Methods 217 cases of maxillofacial trauma caused by traffic accidents were selected out of 848 cases in our hospital and then clinical analysis was done to the 217 cases. Results The soft tissue incisions in patients healed with period I, and most patients were satisfied with the recovered facial contour. Occlusion of 129 rigid internal fixation cases was restored to preoperative state, so was the mastication function. The occlusion of 2 patients with mandibular teeth missing too much was not so well restored. After 2~3 months postoperative function training, opening degree of all cases reached more than 3.5 cm. Conclusions The maxillofacial head-on collision injury has its specificity in terms of its pathogenesis, clinical manifestations and the treatment. The road design in border provinces, traffic control, quality-oriented education will be maxillofacial impact injury prevention measures.

Key words: plateau in ethnic minority areas, the traffic accident, head-on impact injury