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ARTIFICIAL DENTURES. Sy

accurately adapted to the walls of the teeth by bending or
twisting the connecting strip in any desired direction with
pliers or other instruments suitable for the purpose. This
accomplished, the plate and clasps are removed, and the
operation of permanently uniting the clasps to the plate
performed in the usual manner.*
Atmospheric Pressure or Adhesion as a Means of Sup-
port.—The nielhud of attaching partial sets of teeth to the
superior jaw by means of atmospheric pressure, or by adhe-
sion, is more generally practiced than formerly, and wher-
ever the condition of the soft parts of the mouth, the gen-
eral configuration of the palatal arch, and the antagonism or
occlusion of the artificial with the natural teeth favor its
adoption, these forces, should, in all practical cases, be util-
ized in preference to the use of clasps for purposes of attach-
ment.
Fig. 54-

The general form of the base, where several teeth scat-
tered throughout the arch are required, is shown in Fig.

* For an elaboration upon this subject see Richardson's "Mechanical
Dentistry," 7th Edition.