A practical treatise on the technics and principles of dental orthopedia and prosthetic correction of cleft palate . ve-ment and prevent those annoying invertedV-shaped spaces that always otherwise ob-tain. Fig. 167 shows one of the commonThe most important feature is: The powerThe power bar should be very rigid (No. 18spring nickel silver) and fitted into long-bearing tube attachments. The upper tube, soldered to the molar band, is No. 19-28,and telescopes into a thin-walled tube, solderedto the premolar band. The upper and lowertubes must move exactly parallel with eachother. The arch-bow (N
A practical treatise on the technics and principles of dental orthopedia and prosthetic correction of cleft palate . ve-ment and prevent those annoying invertedV-shaped spaces that always otherwise ob-tain. Fig. 167 shows one of the commonThe most important feature is: The powerThe power bar should be very rigid (No. 18spring nickel silver) and fitted into long-bearing tube attachments. The upper tube, soldered to the molar band, is No. 19-28,and telescopes into a thin-walled tube, solderedto the premolar band. The upper and lowertubes must move exactly parallel with eachother. The arch-bow (No. 19 spring wire), be-sides acting as a retruding force upon the frontteeth, aids in sustaining the rigidity of relationsbetween the molar and the premolar — which is the main principle of thisapparatus. Bimaxillary Retrusions are far more rare in practice than bimaxillary pro-trusions, and though this type of physiognomy may be quite frequently observedamong people we meet, there is no reason why such conditions do not arise fromheredity, the same as decided retrusions of a single denture in relation to the. methods employed for this purposeis applied from root-wise extensions. Fig. 167
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Keywords: ., bookcentury1900, bookdecade1920, bookidpracticaltre, bookyear1921
