A practical treatise on mechanical dentistry . Fig. mold C should be warmed, the melted alloy poured in every hole,and the overflow wiped off just before the metal stiffens. This will ARTIFICIAL CROWNS. 539 make the butts of the hubs smooth and flat. After a minute or twothe mold may be reversed, the hubs shaken out, and the castingprocess continued until a considerable number of hubs shall havebeen cast. In Fig. 474 a molar hub is shown in place on a piece of Xo. 32 Fig. 474.

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Keywords: ., bookcentury1900, bookdecade1900, booksubjectdentist, bookyear1903