. Modern surgery, general and operative. (falls on the chin), and so may directviolence. Fractures of the coronoid processare very rare, and they arise from greatdirect violence (usually a gunshot wound orsome other penetrating force) or by muscularaction (violent contraction of the temporal muscle). Comminuted fracturesare rare. Multiple fractures are by no means unusual. Symptoms.—In fracture of the body preternatural mobility and crepitusgenerally exist. The gum over the fracture swells rapidly and decidedly. Thereis bleeding because of laceration of the gum; saliva dribbles constantly; the
. Modern surgery, general and operative. (falls on the chin), and so may directviolence. Fractures of the coronoid processare very rare, and they arise from greatdirect violence (usually a gunshot wound orsome other penetrating force) or by muscularaction (violent contraction of the temporal muscle). Comminuted fracturesare rare. Multiple fractures are by no means unusual. Symptoms.—In fracture of the body preternatural mobility and crepitusgenerally exist. The gum over the fracture swells rapidly and decidedly. Thereis bleeding because of laceration of the gum; saliva dribbles constantly; thepatient supports the jaw with the hand; great pain exists (possibly from injury ofthe nerve), and deformity is present, shown by inequality of the teeth if thefracture is anterior to the masseter, the anterior fragment going downward andbackward and the posterior fragment going upward and forward. The down-ward displacement is due to muscular action (action of the digastric, geniohyoid,* New Orleans Med. and Surg. Jour., Sept., Fig. 335.—Hamiltons bandage. Fractures of the Inferior Maxillary Bone 621
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