A practical treatise on artificial crown- and bridge-work . l, and on the otherside 18- or 20-carat gold plate is flowed until a suitable thickness isobtained. When trimmed into proper shape and attached to thebar, this forms a sul)stantial backing or socket (Fig. 353) in which,when the bar is anchored, the [)orcelain tooth can be fastenedwith a little oxyphosphate cement or gutta-percha (Fig. 354). 176 ARTIFICIAL CROWN- AND BRIDGE-WORK. The Low porcelain front consists of a porcelain facing whichfits into a metallic socket, where it is retained by grooves on thesides. The metallic part is sol


A practical treatise on artificial crown- and bridge-work . l, and on the otherside 18- or 20-carat gold plate is flowed until a suitable thickness isobtained. When trimmed into proper shape and attached to thebar, this forms a sul)stantial backing or socket (Fig. 353) in which,when the bar is anchored, the [)orcelain tooth can be fastenedwith a little oxyphosphate cement or gutta-percha (Fig. 354). 176 ARTIFICIAL CROWN- AND BRIDGE-WORK. The Low porcelain front consists of a porcelain facing whichfits into a metallic socket, where it is retained by grooves on thesides. The metallic part is soldered in position and the porcelainfront cemented on. (See page 126.) Fig. 355 represents a double bar-bridge formed with an all-gold molar crown. Dr. J. G. Moreys method of constructing a doul)le bar-bridgewith a removable molar or dummy is as follows: The bar is formed as seen in Fig. 356. A countersunk molaris ground and shaped as seen at A and B, Fig. 357. To the baseof the molar and up in the slot is shaped and fitted the shell C, Fio. 355. Fig. Fig. 357


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Keywords: ., bookcentury1800, bookdecade1880, booksubjectcrowns, bookyear1889