A practical treatise on mechanical dentistry . are thoroughlv and evenlv heated throughout. IO MECHANICAL DENTISTRY. Gold solder, 18-carat, is then cut in small pieces and placed, with alittle borax, over the aperture between the backing of the toothand the cap. The investment being now uniformly heated, theflame from the blowpipe should be directed upon the solder,mostly in the direction indicated in Fig. 394, when, if the entirecase has been previously brought to a red heat, the solder willreadily melt and flow betwen the tooth and cap. Additional soldershould now be added and melted until t
A practical treatise on mechanical dentistry . are thoroughlv and evenlv heated throughout. IO MECHANICAL DENTISTRY. Gold solder, 18-carat, is then cut in small pieces and placed, with alittle borax, over the aperture between the backing of the toothand the cap. The investment being now uniformly heated, theflame from the blowpipe should be directed upon the solder,mostly in the direction indicated in Fig. 394, when, if the entirecase has been previously brought to a red heat, the solder willreadily melt and flow betwen the tooth and cap. Additional soldershould now be added and melted until the proper contour of thetooth is insured. The tooth and investment should then be placed in and coveredwith sand, plaster, or some other suitable substance to keep theheat from radiating too rapidly and thus cracking the tooth. Itshould be left so covered until it is thoroughly cool. We mightadd here, that it is well to direct the flame from the blowpipe intothe sand or other material for a moment before placing the tooth Fig. 394. Fig.
Size: 1856px × 1346px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectdentist, bookyear1903
