A practical treatise on mechanical dentistry . remaining, the internal walls of gold will be disclosed, Fig. careful manipulation with the small and intense blowpipe flamebefore mentioned, 20-carat solder can be so flowed in as to make asolid golden mass, from which can be readily shaped a perfect bicus-pid, Fig. 439. 526 MECHANICAL DENTISTRY. In the construction of an all-gold bicuspid crown some of thesteps differ from those just described. Upon the cap are droppedseveral beads of wax. From this shapeless mass is carved a per-fect bicuspid. Fig-. 440. A die is then obtained, Fig. 441.
A practical treatise on mechanical dentistry . remaining, the internal walls of gold will be disclosed, Fig. careful manipulation with the small and intense blowpipe flamebefore mentioned, 20-carat solder can be so flowed in as to make asolid golden mass, from which can be readily shaped a perfect bicus-pid, Fig. 439. 526 MECHANICAL DENTISTRY. In the construction of an all-gold bicuspid crown some of thesteps differ from those just described. Upon the cap are droppedseveral beads of wax. From this shapeless mass is carved a per-fect bicuspid. Fig-. 440. A die is then obtained, Fig. 441. after themanner just detailed. A grinding surface is swaged in pure gold,Fig. 442. and the cusps are filled with 20-carat solder, Fig. 443, andplaced in proper position upon the wax tooth. A piece of puregold plate, slit at the edges for facilitating adjustment, should nowbe made to cover about two-thirds of the yet exposed border ofwax. Fig. 444. After being invested, and the wax removed by hotwater, a suitable aperture is left for solderin
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectdentist, bookyear1903
