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ALVEOLAR ABSCESS. 6\J6 ;

the root in the manner already described. The nitrate
is more prompt of action than creosote, and will ac-
complish a specific object in a shorter time. Either
of these solutions may. by the use of the syringe,
be very effectively thrown through a root in the
following manner : fill the orifice of the canal with

gutta-percha ; drill through it a hole large enough to
receive tightly the point of the syringe ; and then,
charging with the solution, inject it through the root
and, in cases where there is an opening through the
gum, the injection may be forced round through this.
The condition of the parts will indicate how long this
kind of treatment should continue. Ordinarily, when
the discharge is entirely through the gum, the bistoury
should be used to enlarge the opening. In many

cases, therapeutic treatment alone will accomplish the
object; and, when the opening to the sac is large and
direct, the therapeutic agents may be introduced
through it directly to the seat of disease. If nitrate
of silver, in solution, or creosote is used, it should be
introduced to the point of affection on a pledget of
cotton or floss silk, as heretofore directed ; or if, as is

preferable, chlofid of zinc or nitrate of silver in solid,
it should be passed through the opening into contact
with the sac. This treatment should be kept up till
the indications are fulfilled.
In the treatment of abscess of the inferior maxilla,