A practical treatise on artificial crown- and bridge-work . anterior to it as one abutment, with a saddle for the other. Asaddle is an oval-shaped piece of gold, of the form of the gumand a little larger than the base of the tooth, placed under theposterior tooth of the bridge. Figs. 334 and 335 represent an extension bridge. A crownon the cuspid, an all-gold crown on the bicuspid, and a saddle,^are the abutments. In constructing this bridge, the teeth form-ing the abutments were first crowned. The crowns were thenadjusted in position, and an impression and articulation taken in170 EXTENSION B
A practical treatise on artificial crown- and bridge-work . anterior to it as one abutment, with a saddle for the other. Asaddle is an oval-shaped piece of gold, of the form of the gumand a little larger than the base of the tooth, placed under theposterior tooth of the bridge. Figs. 334 and 335 represent an extension bridge. A crownon the cuspid, an all-gold crown on the bicuspid, and a saddle,^are the abutments. In constructing this bridge, the teeth form-ing the abutments were first crowned. The crowns were thenadjusted in position, and an impression and articulation taken in170 EXTENSION BRIDGES. 171 plaster, in which the crowns were removed. From this impres-sion a model was made of plaster and marble-dust, and anarticulation in plain plaster. With the crowns in position on the Fig. 338. Fig. :^=
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectcrowns, bookyear1889
