. The principles and practice of dental surgery. from them. There is also danger of splitting the plate,in swaging it into the spaces between the teeth, if these are lefton the metallic die. SWAGING PLATES. A die and counter-die having been obtained, a piece of sheet-lead is adapted to the alveolar ridge, and the dimensions of theplate marked upon it with a pointed instrument. Paper is some-times used for this purpose, but is not so good as thin sheet-leador heavy tin foil. The pattern thus marked is cut out, laidupon a piece of gold plate of the right thickness, and its sizeand shape marked u
. The principles and practice of dental surgery. from them. There is also danger of splitting the plate,in swaging it into the spaces between the teeth, if these are lefton the metallic die. SWAGING PLATES. A die and counter-die having been obtained, a piece of sheet-lead is adapted to the alveolar ridge, and the dimensions of theplate marked upon it with a pointed instrument. Paper is some-times used for this purpose, but is not so good as thin sheet-leador heavy tin foil. The pattern thus marked is cut out, laidupon a piece of gold plate of the right thickness, and its sizeand shape marked upon it. The plate should be cut a little toolarge, to allow for trimming and any accidental slipping uponthe die. In partial cases, the pattern should be carried partlyover the excised teeth, and no attempt made to fit it accuratelyaround the necks of the teeth until the swaging is nearly orquite completed. With a pair of strong shears or snips (Figs. 602 SWAGING PLATES. 204, 205,) the portion of plate thus marked is cut out. Fig. 204 Fig. Fig. 205. represents a pair of Stubbs plate shears: Fig. 205, a pair ofdifferent construction, with longer and more conveniently shaped handles. The blades of someshears are curved laterally; butthis form is not desirable. Forcurves which the straight shearswill not cut, a fine watch springsaw may be used; and for veryshort curves, around teeth forinstance, a pair of cutting forceps shaped as in Fig. 206. The plate must next be well annealed and partially fitted, by Fig. 206.
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Keywords: ., bookcentury1800, bookdecade1860, bookpublisherphiladelphialindsa
