. The Dental cosmos. was so sensitive that I could not haveremoved the pins without the use ofnitrous oxid. I enlarged the holes leftby their removal with a new fissure bur,securing the greatest diameter which thetooth would allow (see Fig. 13), leavinglittle more than enamel for walls. Next,tubes of platinum foil were made, closed Fig. at one end and unfinished at the piece of platinum foil was burnishedover the broken surface of the tooth, andholes punched in it to correspond withthe pin holes in the tooth. While keep-ing this latter piece in position on thetooth, the tubes were
. The Dental cosmos. was so sensitive that I could not haveremoved the pins without the use ofnitrous oxid. I enlarged the holes leftby their removal with a new fissure bur,securing the greatest diameter which thetooth would allow (see Fig. 13), leavinglittle more than enamel for walls. Next,tubes of platinum foil were made, closed Fig. at one end and unfinished at the piece of platinum foil was burnishedover the broken surface of the tooth, andholes punched in it to correspond withthe pin holes in the tooth. While keep-ing this latter piece in position on thetooth, the tubes were inserted throughthe punched platinum into the holes inthe tooth (see Fig. 14), and the pro- MOFFITT.—NOTES ON PORCELAIN WORK. 689 jecting ends burnished down. This im-pression was then waxed up to the desiredcontour of the tooth (see Fig. 15), re-moved, and invested on a fire-clay slab.(See Fig. 16.) A very good articulator, which I de-scribed in the Oesterreichische Zeit-schrift fur Stomatologic of last year, maybe made with a small brass hinge or withan ordinary bridge articulator. A sheet-metal tray is made to hold the fire-clayslab and soldered to the lower part ofthe articulator (Fig. IT). The pieceunder construction can thus be removedfor baking and returned to the articu-lator whenever a measurement is re-quired. For baking
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Keywords: ., bookcentury1900, bookdecade1910, bookiddent, booksubjectdentistry
