. Modern surgery, general and operative. f the lower jaw can often besatisfactorily treated by Angles bands. Thesebands are of great value in complicated cases, inwhich two or more fractures exist. Each bandconsists of thin metal and a screw and a nut to fitthe screw. The band is adjusted around a firmtooth and a nut is applied so as to hold the bandtightly. Several bands are placed upon teeth in both jaws. Silver \\ire ofsilk is thrown around the pins of the bands so as to catch, and the jaws are thusheld firmly together. In some cases holes are drilled in the bones and thefragments are held
. Modern surgery, general and operative. f the lower jaw can often besatisfactorily treated by Angles bands. Thesebands are of great value in complicated cases, inwhich two or more fractures exist. Each bandconsists of thin metal and a screw and a nut to fitthe screw. The band is adjusted around a firmtooth and a nut is applied so as to hold the bandtightly. Several bands are placed upon teeth in both jaws. Silver \\ire ofsilk is thrown around the pins of the bands so as to catch, and the jaws are thusheld firmly together. In some cases holes are drilled in the bones and thefragments are held together by means of silver wire. In some few cases platesand screws are used. The patient is to be fed on liquid food (see Fracture of Fig. 336.—Vulcanite splint withboxes vulcanized on each side. Ifthe jaw is fractured in the region ofthe molars, considerable pressure isrequired to get the parts in position;therefore it is best to ^•ulcanize onto the sides of the vulcanite splintboxes into which wire arms can beinserted (Pilcher).. Fig. 337.—Interdental splint. 622 Diseases and Injuries of the Bones and Joints the Upper Jaw), the mouth is to be washed frequently with peroxid of hydrogen,followed by boric acid solution or normal salt solution, and if bandages are usedthey should be changed every second day. The union should be completein five weeks. The best plan of treatment in all cases not operated upon isto send the patient to a skilful dentist and have him apply an interdentalsplint and direct the treatment. A specialist may succeed in obtaining suchfixation that union in good ahgnment follows when a general surgeon mightonly secure union in poor alignment. Though these fractures are often com-pound, they very seldom endanger life. Fractures of the Hyoid Bone.—These fractures are uncommon injuries, andare caused by hanging, by throttling, by blows, and by falls in which the neckstrikes some obstacle. If the bone breaks by throttling, it is its body whichfractures
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