Orthodontia, or malposition of the human teeth : its prevention and remedy.

  • Guilford, Simeon Hayden, 1841-1919.
Date:
[1893]
Catalogue details

Licence: Public Domain Mark

Credit: Orthodontia, or malposition of the human teeth : its prevention and remedy. Source: Wellcome Collection.

Provider: This material has been provided by the Augustus C. Long Health Sciences Library at Columbia University and Columbia University Libraries/Information Services, through the Medical Heritage Library. The original may be consulted at the the Augustus C. Long Health Sciences Library at Columbia University and Columbia University.

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    on its palatal surface is soldered a long piece of tubing to accommodate the traction Fig. 81. screw. The cuspid is also encir- cled by a band with a short tube soldered horizontally to it on its distal surface with which the bent end of the traction screw engages. The nut operating against the distal end of the long tube will rapidly move the cuspid into position. Retraction of Cuspid. (Angle.) Fig. 82 illustrates another appliance of Prof. Angle's, very similar in character, but with the tube and screw located jPjo._ 82. upon tlie outside of the arch. It will be noticed that on the left side the short pipe or tube is attached to the cuspid band at the mesio-buccal angle of the tooth in order to rotate it as well as draw it backward, while upon the right side the screw is hooked over a spur upon the cuspid Backward Movement and Rotation. (Angle.) band to accomplish the same purpose more conveniently. Dr. Farrar's device for effecting the same movement is shown in Fig. 83. It consists of a narrow ribbon of gold, long enough to en- close the cuspid tooth and some tooth back of the space it is to occupy. The ends of this ribbon nearly meet on the buccal side of the teeth, and after being reenforced with