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398 RESTORATION OF TEETH BY CEMENTED INLAYS.
Dr. C. L. Alexander's method ' is described by its author as fol-
lows: " My method consists in detail of burnishing platinum over the
surface to be restored; the holes for retaining posts having already been
made, can easily be located and the posts adjusted therein. Then by
Fig. 386.
showing details of the process fi)r making cast tilling for incisor: a, post with plate adapted;
B, restored contour in wax ; c, the contour invested ; D, cast contour detached ; e, e, the
finished restoration.
heating a little modeling compound over a spirit lamp, and })ressing it
firmly down over the surface and allowing it to cool, we can remove the
platinum sheet and posts in correct relation to each other. We now
invest and solder the posts with pure gold. The piece is again placed
upon the tooth in the mouth, and after carefully trimming and rebur-
nishing an impression is taken, and when an occlusion is needed it
Fig. 387. Fig. 388.
Restoration of bicuspid Front and back view of an incisor restoration, and cast
by cast filling. filling for molar.
is made at the same time by the patient closing the teeth together
before the impression material has become hard. The metal founda-
tion will be drawn out by the impression compound when it is removed
from the mouth. Each side of the impression thus secured is filled
with any good investing material and placed in an articulator. After
heating and removing the impression material, the contour of the tooth
may be restored by building up with wax. Over the wax surface thus
^ Dental Cosmos, October 1896, vol. xxxviii. p. 850.