Page 235 - My FlipBook

FILLING BY CLASSES AND MODIFICATIONS. 231

always to be preferred, since by this there is a weld-
ing of the entire mass, and an anchorage, too, quite
sufficient in all cases to retain it in its place.
Filling large cavities on the labial surfaces of the
superior incisors.—These cavities are usually super-
ficial, and frequently co-extensive with a considerable
part of the surface of the tooth. A method of filling
them, somewhat novel, though not without merit, has
been introduced to the notice of the profession by

Dr. Volck, it having been first suggested to him how-
ever, by Dr. Maynard. It consists in filling up the
cavity principally with a piece of enamel, as near the
color of the tooth as possible. The cavity, when
nearly round, should be formed with a wheel bur of
the proper size ; and after having been thus reamed
out, a slight under-cutting should be made all round

with an excavator. Then a piece of enamel being se-
lected, it is dressed to a proper thickness, which should
be slightly greater than the cavity's depth, and' to a
perfectly circular form, its size being such as to let it
drop, with a little play, into the cavity, and the edge
of it being beveled from without. For fastening this
in the cavity, roll a strip of several thicknesses of
gold foil round its edge, and add as much as can be

forced in with it ; set it all in place in the cavity,
and then condense the gold down into the groove all
round with a thin-pointed plugger, more gold being