The Dental cosmos . employed for the uninjured jaw. Obtain an impression of the uninjured jaw first, thus gaining theconfidence of the patient. The impression of the fractured jaw shouldinclude the entire jaw and all of the teeth ; where this is not possible,take a special impression of the displaced fragments. After obtainingboth impressions, make a careful examination of the fractured jaw,to ascertain, if possible, the pressure required to replace the frag-ments in their normal position and to hold them there. The displacedfragments, as shown in the cast, must then be separated ; next, accu-
The Dental cosmos . employed for the uninjured jaw. Obtain an impression of the uninjured jaw first, thus gaining theconfidence of the patient. The impression of the fractured jaw shouldinclude the entire jaw and all of the teeth ; where this is not possible,take a special impression of the displaced fragments. After obtainingboth impressions, make a careful examination of the fractured jaw,to ascertain, if possible, the pressure required to replace the frag-ments in their normal position and to hold them there. The displacedfragments, as shown in the cast, must then be separated ; next, accu- TREATMENT OF FRACTURES OF THE MAXILLiE. 607 rately articulated to the upper teeth and the fragments cemented inproper position with plaster of Paris. Fig. 2 represents a fracture at the symphysis. Fig. 3 representsthe displaced fragment sawed from the cast (Fig. 4). The occluding or grinding surfaces of antagonistic teeth are unmis-takable, and there is no excuse for making an error in resetting the Fig. 3. Fig. plaster model. Should any discrepancy occur, it will be fatal to thesuccess of the appliance. In all cases where there are teeth whichoccluded with those of the opposite jaw (previous to the fracture) amistake is impossible, if care be exercised. Fig. 5 shows the plaster fragments placed in their normal positionand cemented together, ready for the articulator. Fig. 5.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectdentist, bookyear1890
