A practical treatise on artificial crown- and bridge-work . collar of amplewidth of thin platinum, about No. -5- t. 8. standarjl-gaiiLe. which is easily adapted \ the form of the crown, and onthe out-ide of this, fitting a slightly narrower Btfip of gold clasp /, E MOVABLE PL A TK BR IDG ES. 211 plate, about No. 30 U. S. standard gauge. The gold and plati-num are then cemented with wax, removed, invested, and solderedtogether with gold solder. A perfect-fitting and reliable eollaris thus formed (B, Fig. 416). The collars, though fitting accurately, should move easily overthe crowns, as they ca
A practical treatise on artificial crown- and bridge-work . collar of amplewidth of thin platinum, about No. -5- t. 8. standarjl-gaiiLe. which is easily adapted \ the form of the crown, and onthe out-ide of this, fitting a slightly narrower Btfip of gold clasp /, E MOVABLE PL A TK BR IDG ES. 211 plate, about No. 30 U. S. standard gauge. The gold and plati-num are then cemented with wax, removed, invested, and solderedtogether with gold solder. A perfect-fitting and reliable eollaris thus formed (B, Fig. 416). The collars, though fitting accurately, should move easily overthe crowns, as they can be readily tightened when the case isfinished. If a collar is troublesome to adjust and. remove, cutthe side opposite to the one attached to the plate, and spring itopen a little. After fitting the teeth it can be again unitedwhen they are being soldered. This collar and shoulder form asupporbipreferable to a partial or an entire double cap, being lessdifficult to keep clean. A collar is more easily constructed, and Fig. also permits the position of the bridge to be altered, by the removalof a little of the shoulder or of the upper edge of the collar,and is a secure but less rigid attachment than other methods. The collars and plate are next cemented with wax, removed,invested, and strongly soldered together (B, B, Fig. 416). Theartificial teeth are fitted in proper position on the plate by theaid of a plaster articu1, ,-tion, attached with wax, and, if preferred,adjusted in the mouth without the crowns. The bridge is theninvested and finished. I The attachment of the artificial teeth tofclie plate can be of either gold or rubber. Whichever is adopted,the first bicuspid is best supported by being soldered to the iridio-platinum is used in the construction instead of goldplate, and the soldering done with pure gold, porcelain bodycan be used. When ready to be inserted, the crowns are firstadjusted with cement, and then the bridge, which is left in posi- 212 ART
Size: 2002px × 1249px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1880, bookpublisherphila, bookyear1889
