The Dental cosmos . bone was removedwith engine burs, and the parts thoroughly syringed with warm phe-nated water. The tongue, lips, and parts bordering on the cavitywere carefully protected by napkins and bibulous paper, while a fiftyper cent, solution of commercial sulphuric acid was applied to and keptin contact with the exposed bone during several minutes. The acidwas then removed by absorbents, and bicarbonate of soda sprinkledover the surface. Suitable dressings were applied from time to_time, 176 THE DENTAL COSMOS. and in the course of six weeks the parts were solidly healed. Mean-time
The Dental cosmos . bone was removedwith engine burs, and the parts thoroughly syringed with warm phe-nated water. The tongue, lips, and parts bordering on the cavitywere carefully protected by napkins and bibulous paper, while a fiftyper cent, solution of commercial sulphuric acid was applied to and keptin contact with the exposed bone during several minutes. The acidwas then removed by absorbents, and bicarbonate of soda sprinkledover the surface. Suitable dressings were applied from time to_time, 176 THE DENTAL COSMOS. and in the course of six weeks the parts were solidly healed. Mean-time the left central, which leaned somewhat toward the right cuspid,was properly straightened and trimmed. The very great loss of pro-cess and bone is shown in Fig. 2. The impression for the cast fromwhich the illustration has been made was obtained by the followingmethod : A lump of stiff-mixed plaster was held by the ringers againstthe central and cuspid on their lingual faces, and modeled into a wall Fig. 1. Fig. between them on a line with the vertical middle of each tooth. Whenhard, the piece was removed, trimmed, and varnished with shellac. Itwas then replaced and held in position while a mass of stiff-mixedplaster was pressed against the plaster wall between- the teeth and overtheir labial surfaces. When hard, it also was taken out, trimmed, andvarnished. The two pieces were oiled on their outer surfaces, put to- Fig. 4. Fig. 5.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectdentist, bookyear1890
