A practical treatise on mechanical dentistry . Fig. 74-. posed. The second counter-die should extend just beyond thecenter of the ridge, as shown in Fig. 73, and the third or finalcounter may be formed in the usual manner, see Fig. 74. By thejudicious construction of this series of counter-dies, more satis-factory results are obtained, and much needless use of the hornmallet dispensed with. It will readily be observed that a coun-ter-die, formed as represented in No. i (Fig. 72), will drive thecenter of the plate into position without the usual resistance ex-perienced in using the ordinary cou
A practical treatise on mechanical dentistry . Fig. 74-. posed. The second counter-die should extend just beyond thecenter of the ridge, as shown in Fig. 73, and the third or finalcounter may be formed in the usual manner, see Fig. 74. By thejudicious construction of this series of counter-dies, more satis-factory results are obtained, and much needless use of the hornmallet dispensed with. It will readily be observed that a coun-ter-die, formed as represented in No. i (Fig. 72), will drive thecenter of the plate into position without the usual resistance ex-perienced in using the ordinary counter. The use of No. ii () will gradually start the plate over the ridge, and No. iii willreadily complete the process. I/O MECHANICAL DENTISTRY. As before remarked, preference is usually given to lead in theformation of a counter-die, mainly on account of its greater soft-ness. This property in a counter is practically important. Inthe process of forcing a metallic plate into adaptation to themouth, partial displacement or yielding of either the
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectdentist, bookyear1903
