. The principles and practice of dental surgery. ily held for a few minutes in contact with the parts to be copied;and to follow, as nearly as , the outline of these parts,allowing a uniform space of one-fourth or one-eighth of an inch 044 IMPRESSION CUPS. for the material. These cups are known as impression-cups,mouth-cups, or wax-holders. Formerly they were made of sheet-tin, cut into shape and sol-dered (Figs. 188 and 189), and were so very imperfect, that itwas often necessary to swage metallic cups to suit special depots now supply an excellent assortment of well-shaped
. The principles and practice of dental surgery. ily held for a few minutes in contact with the parts to be copied;and to follow, as nearly as , the outline of these parts,allowing a uniform space of one-fourth or one-eighth of an inch 044 IMPRESSION CUPS. for the material. These cups are known as impression-cups,mouth-cups, or wax-holders. Formerly they were made of sheet-tin, cut into shape and sol-dered (Figs. 188 and 189), and were so very imperfect, that itwas often necessary to swage metallic cups to suit special depots now supply an excellent assortment of well-shapedimpression-cups, of which twelve will constitute a full assort-ment, namely: three sizes for full upper eases (Fig. 193), and Fig. 190. Fig. 191. I
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Keywords: ., bookcentury1800, bookdecade1860, bookpublisherphiladelphialindsa
