A practical treatise on mechanical dentistry . the backingin place. Burnish down the edges well, being careful not to letthe backing overlap the facing. Place the facing in the space prepared for it in the crown (), and bind the two together (not too tight) with wire, wrappingthe wire directly over the facing with asbestos to prevent discolora-tion of the porcelain. Flux and solder by holding over a lamp asin the case of a band (Fig. 599). Then finish in the usual way. If it is desired to use a platinum pin for anchorage, as, for in- 6i6 MECHANICAL DENTISTRY, stance, a Logan pin, bend t
A practical treatise on mechanical dentistry . the backingin place. Burnish down the edges well, being careful not to letthe backing overlap the facing. Place the facing in the space prepared for it in the crown (), and bind the two together (not too tight) with wire, wrappingthe wire directly over the facing with asbestos to prevent discolora-tion of the porcelain. Flux and solder by holding over a lamp asin the case of a band (Fig. 599). Then finish in the usual way. If it is desired to use a platinum pin for anchorage, as, for in- 6i6 MECHANICAL DENTISTRY, stance, a Logan pin, bend the pins in the facing- sufficientlyto clamp the anchorage pin, and insert the pin through the goldcrown (Fig. 607), finishing as before described. Fig. 608 showsa finished crown so made. The Grinding Surface of a Bridge in One Continuous Piece.—After having crowned the teeth for the attachment of the bridge,take a bite in modeling compound, remove the compound, placethe crowns in their impressions, make a cast of sand and plaster, Fig. and place on an articulator; now put moldine between the abut-ments instead of wax, and get the articulation with cusp buttonsthe same as you would for plate teeth (Fig. 609). Then toremove the buttons without destroying the articulation, make acup by pouring Melottes metal, as cool as it will flow, on the faceof the cusp buttons. Heat the pouring lip of the ladle and use itto smooth out the half congealed metal, much as you would asoldering iron (Fig. 610). Then place a thin coating of moldine Fig. 610.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectdentist, bookyear1903
