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tion.
After we have cleaned out all the carious portion, and
shaped the cavity as we wish it, then we should
fill it with a
lock of cotton dipped
in warm water, so as to completely
wash out of it every particle of dust and dead matter, min-
nute pieces of the bone, &e.
This done we should dry the
cavity with a piece of dry cotton, introduced into it, and
re-
peated until it is perfectly dry ; then if the nerve is not ex-
posed, or the sound bony part not
irritable or very tender,
we may introduce the gold
leaf, and with a punch of a
suitable size, shape, &c.
so as to apply perfectly to the
cavity, pa* uj the gold so as to
fill the cavity in the most
perfect manner and by firm pressure upon the gold render it
perfectly compact, so as to completely apply to any part of
the cavity, and be quite as impermeable to any foreign agent,
as the solid gold itself.
After we have done this, we cut off
the projecting part of the gold, and conclude the operation
by burnishing the surface of the gold, so as to make it per-
fectly smooth, and not projecting in the least above or out-
; by so doing we shall
side of the substance of the tooth
it's being
prevent the gold from being seen, and also prevent
acted upon by any thing which might loosen it or push it out.
When the substance of the tooth is irritable and the nerve
and lining membrane are not exposed, we may in some
cases if we choose, with a camels-hair pencil, touch over the
internal surface of the cavity with the brush of the pencil pre-
viously dipped in a saturated solution ofthe argentum nitratum,
and then plug the jooth as before directed. When the nerve
and lining membrane are exposed, and we have prepared
them j directed, with an astringent, or not, as we
, or whe luterize the nerve, we should cover it
witl te i •' d, and finish the plugging with gold,
r the lead perfectly dry, and the two
ther.in a perfectly dry state ; for if
DOl e ry difficult to press them together, so that