Song JM, et al. - Researchers examined 437 patients who underwent surgery for facial bone fractures for the incidence of hypoesthesia. In addition, they investigated how post-traumatic hypoesthesia is associated with risk factors, including general and fracture-related characteristics. They noted the highest hypoesthesia incidences in the mandible (19.1%), maxilla (18.3%), and orbit (8.5%) indicating increased post-traumatic hypoesthesia following surgery. However, by 6 months postoperatively, the sensation was recovered by most patients. The fracture site and pattern were identified influencing the recovery from postoperative hypoesthesia. Direct nerve injury, distance (≤ 10 mm) between the fracture and nerve foramen, the amount of bony displacement, and age were the risk factors for hypoesthesia.