A practical treatise on artificial crown- and bridge-work . placed in position, a small quantity of articulating paste shouldbe applied and the point found and trimmed off. If extensivewarping has occurred in the soldering, the bridge must be sawedapart in one or two places, adjusted in the mouth, and removed inan impression-tray, using only sufficient investing material (equalpart- of plaster and marble-dust with the usual quantity of sul-phate of potassium) to cover the points of the teeth and crowns(Fig. 309). The inner surface of the tray should be oiled. FlQ 310 The bridge and the in- ves
A practical treatise on artificial crown- and bridge-work . placed in position, a small quantity of articulating paste shouldbe applied and the point found and trimmed off. If extensivewarping has occurred in the soldering, the bridge must be sawedapart in one or two places, adjusted in the mouth, and removed inan impression-tray, using only sufficient investing material (equalpart- of plaster and marble-dust with the usual quantity of sul-phate of potassium) to cover the points of the teeth and crowns(Fig. 309). The inner surface of the tray should be oiled. FlQ 310 The bridge and the in- vesting material are thenremoved together from theimpression-tray, and moreinvesting material is addedto complete the : cul parts of the bridgearc then soldered the adjustment ofthe bridge is accomplished, fr&aE :,MiM • tempora-rily/ait itta p? p• h;ii$t«*«siE£iir. For its permanentattachmenl the pine or posts of the crowns are barbed, and the h and root- to which crowns have bc-n tilted are then treated. COXSTR U< TJON OF BR ID G E- WO IIK. 161 the same as single crowns, and the bridge cemented on with sfrliMW iTpwiifctf oxyphosphate cement (sec page 141). The end ofthe bar is anchored in the slot by either a gold or an amalgamrilling. Fig. 310 represents the bridge in position. The Construction of Small Pu a s ofBridgi -work is much simplifiedby the following method : Crowns are first made for the teeth orroots that form the abutments and temporarily placed in position. Fig. 311.
Size: 1946px × 1284px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1880, bookpublisherphila, bookyear1889
