A practical treatise on artificial crown- and bridge-work . teration which is greatlv facilitatedby its having been colored with carmine), a correct model andarticulation of the case will be found, with the crowns andcaps in exact position as in the mouth (Fig. 298). Another method is to first takethe impression in an impression-tray, and then the articulation inwax, and make a model and ar-ticulation from them in tlie usualmanner. The pins protruding from thecaps on the model are next cut offshort. Teeth are selected,—ordi-nary plate teeth for the incisors andcuspids, and partial teeth, repre
A practical treatise on artificial crown- and bridge-work . teration which is greatlv facilitatedby its having been colored with carmine), a correct model andarticulation of the case will be found, with the crowns andcaps in exact position as in the mouth (Fig. 298). Another method is to first takethe impression in an impression-tray, and then the articulation inwax, and make a model and ar-ticulation from them in tlie usualmanner. The pins protruding from thecaps on the model are next cut offshort. Teeth are selected,—ordi-nary plate teeth for the incisors andcuspids, and partial teeth, repre-senting the front section of thetooth and styled porcelain facings,which were specially designed for crown- and l)ri<lge-work, forthe bicuspids and molars (Fig. 209). Cuspids are sometimesused to form the fronts for bicuspids. The teeth are groundand fitted to the model and articulation, so that the labial. 156 ARTIFICIAL CROWN- AND BRIDGE-WORK. upper edge of the teeth shall press lightly on the gum. Thosewhich are intended to form the fronts of the caps on the cuspidroots should be adjusted in the ordinary manner for singlecrowns. To determine the proper positions of the teeth forproducing the best appearance, they can be adjusted in the mouthon wax, without the gold crowns or caps of the correct position of the teeth on the model having beenobtained, investing material, composed of one part plaster to-two of calcined marble-dust, is placed on the outside of themodel on the labial aspect of the teeth, merely sufficient in Fig. 300. C A
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectcrowns, bookyear1889
