. Orthodontia, or malposition of the human teeth; its prevention and remedy . MATERIALS AND METHODS. 103 Fig. Retraction of Cuspid. (Angle. of gold wire through the retaining tube on the labial sur-face, which is left in place until the tooth is firmly set in itsnew position. The backward movement of teeth in the line of the arch is accomplished by theappliance shown in Fig. second bicuspid andfirst molar are banded, andthe tube of the heavy trac-tion screw rigidly soldered tothe bands. The cuspid to bemoved is banded, and a shortsection of tubing soldered toit to receive the end o
. Orthodontia, or malposition of the human teeth; its prevention and remedy . MATERIALS AND METHODS. 103 Fig. Retraction of Cuspid. (Angle. of gold wire through the retaining tube on the labial sur-face, which is left in place until the tooth is firmly set in itsnew position. The backward movement of teeth in the line of the arch is accomplished by theappliance shown in Fig. second bicuspid andfirst molar are banded, andthe tube of the heavy trac-tion screw rigidly soldered tothe bands. The cuspid to bemoved is banded, and a shortsection of tubing soldered toit to receive the end of thetraction screw. On turning the nut trac-tion is produced and the cus-pid drawn into place. The cuspid is kept from beingrotated while it is being moved backward, by means of theshort tube accurately fitting the right angled end of thetraction screw. Another outward movement of a tooth by means of thejack-screw is shown inFig. 35. The second bi-cuspid is made the prin-cipal anchorage, againstwhich the base of thetube rests. The band en-circling the lateral incisorhas a slot cut in it toreceive the end of
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