Page 106 - My FlipBook

METHODS OF FILLING TEETH.
92
while
which will allow only a flat filling, and in some a flat filling,
alter the form of the tooth.
serving every purpose, will entirely original
view of a the and
Fig. 8 1 shows an approximal bicuspid, palatal cusp
side of which have been completely lost. In such a case, if the pulp
is dead, a complete contour should be attempted, anchorage in the
root-canal making this perfectly safe. The result is shown in Fig. 82,
the extreme edge of the remaining natural cusp being ground off to
FIG. Si. FIG. 82. FIG. 83.

surface of Where the is alive a
allow a masticating gold only. pulp
different course should be followed, as shown in Fig. 83. Here
totally
we see that a flat has been resorted to, the tooth assuming the
filling
form of a cuspid rather than of a bicuspid. In this case the tip of the
natural is not removed, for with the shape in which the tooth is
cusp
to be left mastication will not be a great menace to it, as it will where
a mass of gold is inserted so as to reproduce the palatal cusp, which
acts as a powerful lever to shatter the standing wall.
METHODS OF PRODUCING CONTOUR FILLINGS.
Gold. When attendant circumstances do not contraindicate its
use, gold undoubtedly will give the greatest satisfaction where any
considerable portion of a tooth must be reproduced. I have known
men who have claimed that could make a contour
they permanent
with ?z claim, but these individuals are very rare. Therefore I advise the
beginner to depend upon cohesive gold when his filling must extend
beyond cavity-borders. Moreover, I would suggest that he obtain
gold as cohesive as it can be made.
There are certain methods of essential when
manipulating gold,
contour is to be reproduced, which may not be so in ordinary cavities.
For I have said that a
example, filling might be made hollow, pro-
vided it touched the walls at all This would be a grand error
points..
in a contour It has been stated some that a
filling. by large cavity
may be well filled with crystal gold, the lower portion being only
partly condensed, provided the upper third be made solid. However
this may be in ordinary work, it is not to be thought of in contouring.
The rule must be that in a contour filling, every piece of
placing
gold, from the very first to the very last pellet, must be thoroughly
condensed, and each and every pellet should display perfect cohesion.