A practical treatise on artificial crown- and bridge-work . one-eighth of an inch wide. The copper is then removed, theends heated and touched with resin and wax, the copper adjustedon the root, and the ends cemented with a warm impression is next taken with plaster, in which the copperband is removed in position. A model made from this impres-sion, after the copper is removed, presents the exact form of the root. From a bite taken in wax a plaster articulation is then madeto the model. A hole is then drilled in the center of the formof the root on the model to be crowned. In thi
A practical treatise on artificial crown- and bridge-work . one-eighth of an inch wide. The copper is then removed, theends heated and touched with resin and wax, the copper adjustedon the root, and the ends cemented with a warm impression is next taken with plaster, in which the copperband is removed in position. A model made from this impres-sion, after the copper is removed, presents the exact form of the root. From a bite taken in wax a plaster articulation is then madeto the model. A hole is then drilled in the center of the formof the root on the model to be crowned. In this hole, and oyerthe end of the root, a ball of soft plaster, slightly colored withcarmine, is placed, and the teeth of the articulation, coveredwith tin foil, closed on it. This, on separation, gives the outlineof the form of the grinding-surface for the crow^n. The sides of 108 ARTIFICIAL CROWN- AND BRIDGE-WORK. the plaster are then trimmed to the form of the crown, and thewhole carved in detail (Fig. 206). As the crown will always-stamp larger in circum
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License: Licensed
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectcrowns, bookyear1889
