Dog bite injury frequently occurs in children, and many of these bites involve the facial region. On the other hand, facial fractures due to dog attacks are a rare complication, with the orbital, nasal, and maxillary bones most often affected. We present a case report of a child who suffered a double facial fracture, mandible and left zygoma, due to a dog bite. The clinical diagnosis was supported by X-rays and computed tomography, which also provided information about the characteristics of the fracture. Internal fixation was done with titanium miniplates. Finally, the pathophysiological mechanism and the biomechanics of the fracture, as well as the use of resorbable versus nonresorbable material on infants, are discussed.