The student's guide to dental anatomy and surgery / by Henry Sewill.

  • Sewill, Henry.
Date:
1876
Catalogue details

Licence: Public Domain Mark

Credit: The student's guide to dental anatomy and surgery / by Henry Sewill. Source: Wellcome Collection.

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    between these hooks over the faces of the protruding' teeth, affords the pressure necessary to reduce them in time to their proper position. The same effect might be produced equally well by means of elastic bands passed over the teeth, and attached behind to the surface of the plate, but this method sometimes causes discomfort by interfering with the movements of the tongue, or with the lower teeth during’ masti¬ cation. An apparatus of this kind is depicted in fig. 35, from Mason (10). The plate is of metal. The pro- Fig. 35. jecting central incisors are acted upon by elastic liga¬ tures attached to a stud on the lingual surface of the plate. The lateral incisors being displaced inwards, are forced in the desired direction by screws passing through the plate, and pressing upon their posterior surface. The following case, the models of which are in the museum of the Odontological Society, illustrates several points in the treatment of irregularities. In June, 1873, a young lady, then aged fourteen, re-