. Orthodontia, or malposition of the human teeth; its prevention and remedy . Double Rotation. INI III! I I 11II Hi |l|||||||ll||l| Corrected Case. tion, they may be best retained by means of the retainershown on p. 160. When the distal corners of the teeth project instead of themesial, the appliance described is rendered equally service-able by reversing its position and placing the long arm onthe labial surface. Fig. 114 represents a case of this char-acter, while Fig. 115 shows the rubber plate with gold wirebow that was used to retain the teeth after correction. Asimpler and better method
. Orthodontia, or malposition of the human teeth; its prevention and remedy . Double Rotation. INI III! I I 11II Hi |l|||||||ll||l| Corrected Case. tion, they may be best retained by means of the retainershown on p. 160. When the distal corners of the teeth project instead of themesial, the appliance described is rendered equally service-able by reversing its position and placing the long arm onthe labial surface. Fig. 114 represents a case of this char-acter, while Fig. 115 shows the rubber plate with gold wirebow that was used to retain the teeth after correction. Asimpler and better method of retention would have been touse the appliance shown in Fig. 103. 166 ORTHODONTIA. Prof. Angle has devised a very simple and effectualmethod of accomplishing double rotation where the mesialangles protrude. Upon each of the teeth to be rotated heplaces Magill bands with tubes soldered to their labial facesnear the distal angles. One tube is set vertically and the Fig. Torsion of Centrals, witli I)i--til AnglesPointing Outward. Ketainiiig Plate on Corrected Case. Fig. 116.
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