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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    Fig. 94. Talbot s Vulcanite Plate and ( oiled spunt Fig. 95. Dr. Talbot lias devised an excellent method of forcing one or more bicuspids into line by means of a coiled spring of piano-wire, in connec- tion with a rubber plate to hold it in position and properly direct its action. Fig. 94 repre- sents the appliance in position. Dr. Talbot says: * A thin, narrow, close-fitting, vulcanite plate w^as made, and a hole drilled through the middle of it opposite the centre of the tooth to be moved. In the other side, another hole was drilled, but not quite through the plate. A suitaljle spring. Fig. 95, was then made of piano-wire, having a single coil A, and the ends of its arms bent at about a right angle. One of these ends, C, was cut short to enter the corresponding hole in the plate, and the other end, B, left long enough to go through the plate and impinge on the lingual surface of the bicuspid, leaving a full eighth of an inch between that arm of the spring and the plate, as is clearly shown by Fig. 94, where the spring is in position to act upon the tooth to be moved. Both the spring and the plate may be removed instantly, either for cleasing purposes or to increase the power of the spring by spread- ing its arms, or to open the coil so that the tooth may be held steady at the point to which it. has been moved. Fig. 96 shows a spring having two Coiled Spring. Fig. 96. A Coiled Spring.