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ACCIDENTS. 615

persulfate of iron, which, although it may be a good styptic for use in
Fig. 559. Fig. 560.

i;;irton's head bandage.
other parts of the body, should not be used in the mouth. The local
treatment in such cases, whether soon after extracting or not, is first
to remove all clots from the wound and find the exact place or places
from which the blood is exuding. A suitable styptic and compression
are the principal means used for stopping it, the latter perhaps Ijeing
the most important. Tannic acid applied on cotton, lint, or similar
substances, is a good styptic to use in the
mouth. Iodoform gauze, for the reasons al- Fig. 561.
ready given, is better, although it has not
been generally used in tliis connection. Com-
pression can be applied as the ingenuity of
the operator may direct. When a hemor-
rhage occurs from a socket between good
showing compress and ligatures.
teeth, it can be readily controlled by two
ligatures, making one fast to each tooth, then placing in position and
tying the four ends together over the compress, as shown in Fig. 5G1.
In a few rare cases an impression of the parts should be taken in wax
or other modelling com})ound in order that a rubber or metallic j)late
can be made to hold the styptic compress in position. After the com-
press is in position warmed modelling compound can be placed over it
and the jaws brought together and retained in place by a head bandage.
A plug of hardening plaster of Paris may be made and forced into
the bleeding socket in obstinate cases, or in exfrernis; the extracted tooth
miglit be soaked well in phenol sodique and reinserted.
The systemic treatment is often important ; if the patient is seen
to be anemic or known to be of the hemorrha