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ARTIFICIAL' DENTURES. 95

of a circle, but a somewhat abrupt angle may be given to
the arch on each side by placing the first bicuspid within
the circle in such a way that, when standing directly in
front of the patient and looking into the mouth, only a nar-
row line of the exterior face of the crowns of these teeth
will be seen, while the remaining teeth posterior to them
should be arranged nearly on a straight line, diverging as
they pass backward. When arranged in the manner de-
scribed, the peripheral outline of the arch will exhibit some-
FiG. 59.

what the form presented in the accompanying diagram
(Fig- 59)-
The lower teeth should now be arranged, and to best
accomplish this, the bicuspids should first he adjusted, then
the teeth anterior to them may be secured in position, and
lastly the molar teeth articulated. By first securing the
proper occlusion with the bicuspids the anterior teeth can
be arranged to suit the peculiarities of the anterior part of
the jaw. In articulating the upper and lower teeth, the
normal occlusion of the natural organs (which is described
in another place) should be imitated as nearly as the other
essential requirements of the case will admit.
In selecting teeth for a full upper denture in those cases
where natural teeth are remaining below, or vice versa, the