Page 38 - My FlipBook

THf: TIGHTENING OF LOOSE TEETH
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A missing frout tooth may be replaced by a tube
tooth before the retaining-plate is made.
Grind the tube tooth, cast the model as if it were
a natural tooth; the hole shows up in the swaged
wall.
Pass a pin through the hole: fix it with wax. cover
with plaster after removal of the tube tooth, and
solder the horizontal pin vertically to the retaining-
vrall (Fig. 19).

In this case the artificial teeth should be cemented
in the retaining appliance before its insertion. In
case several of the front t«eth are missing, they should
be substituted as above.
When fixing loose teeth in the upper jaw great
attention should be paid to the occlusion.
In case an abnormally close bite would not admit of
the placing of a gold wall and the drilling of the teeth,
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the pins must pass through the lingual cusps and the
retaining-wall must be lowered. In this ease devitali-
zation of pulps is not to be avoided.