A practical treatise on the technics and principles of dental orthopedia and prosthetic correction of cleft palate . ection with this, the author usually employs at the beginning of theoperation a light alignment bow. No. 22 or 23, principally for its resilient action asshown in the buccal views of the apparatus. There is no use in attempting to force a cuspid or other teeth into alignmentuntil there is sufficient room for them to move in. In nearly all instances wherethe cuspids are in the position shown, they will usually move into place withoutartificial aid as rapidly as space is made for
A practical treatise on the technics and principles of dental orthopedia and prosthetic correction of cleft palate . ection with this, the author usually employs at the beginning of theoperation a light alignment bow. No. 22 or 23, principally for its resilient action asshown in the buccal views of the apparatus. There is no use in attempting to force a cuspid or other teeth into alignmentuntil there is sufficient room for them to move in. In nearly all instances wherethe cuspids are in the position shown, they will usually move into place withoutartificial aid as rapidly as space is made for their eruption into normal position. In assembling the apparatus, the yoke of the lingual bow is bent to rest properlyagainst the front teeth, engaging with hook attachments on the incisor the arch is of normal width, the distal ends of the bow should lie evenly in theanchorage tubes without pressure; but if the molar area of the arch is laterallycontracted or expanded, the bow should be bent to exert a corrective force. Themolar bands may be placed first, then one of the premolar bands with the bow in. 212 PART VI. DENTO-FACIAL MALOCCLUSIONS its tube. In placing the other premolar band, lift the free end of the bow and slipthe tube over the end, and then with a hinge movement carry the band on to thetooth. Another way is to place the premolar bands with the bow in the tube attach-ments together. This may be done before or after placing the molar bands, as thepremolar tubes can be easily sprung into the molar tube attachments. The incisorbands shovild be placed last, the Ungual hooks having been bent properly in thepreliminary assembling so as to go easily to place and subsequently clasp thebow. The alignment arch-bow may be placed later, unless demanded for thecorrection of the incisors; and even then it may be impossible to place it at firston account of the position of the cuspids. A very practical variation of this apparatus isshown in Fig. 140, which will be found
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Keywords: ., bookcentury1900, bookdecade1920, bookidpracticaltre, bookyear1921
