. The Dental cosmos. and soft tissues being properly brushed,every part of the bridge being readilyaccessible to the brush. With the appli- Fig. 3. ance described it is an easy matter tobrush the entire bridge and the contig-uous soft tissues. The exposed ends of Fig. the dummies, as well as the abutments,are easily reached with a correctly shapedbrush. THE DENTAL COSMOS. The facings are selected as to size andconformity with the remaining teetli asif they were intended for a rubber the necks of these facings are intendedto partially support the plumper, thebackings must extend to


. The Dental cosmos. and soft tissues being properly brushed,every part of the bridge being readilyaccessible to the brush. With the appli- Fig. 3. ance described it is an easy matter tobrush the entire bridge and the contig-uous soft tissues. The exposed ends of Fig. the dummies, as well as the abutments,are easily reached with a correctly shapedbrush. THE DENTAL COSMOS. The facings are selected as to size andconformity with the remaining teetli asif they were intended for a rubber the necks of these facings are intendedto partially support the plumper, thebackings must extend to the cervix aswell as to the occluding surface, givingthe porcelain and gold backing at theneck somewhat of a wedge shape from thebody of the facing to the neck of thetooth. (See Fig. :$.) When the bridgeis ready for investing, it is securely waxedtogether, and with a sharp knife theabutments are cut loose without destroy-ing the cast. The bridge is then investedand finished with a smooth surface, thefinishing on the lathe not being doneuntil the rubber is vulcanized. Laying-aside the bridge, No. 30 or No. d() tinfoil is burnished over the surface of thecast from the center of the ridge up overthe edge of plaster above the highestpoint at which the plumper termina


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Keywords: ., bookcentury1900, bookdecade1910, booksubjectdentist, bookyear1912