Page 424 - My FlipBook

422 DENTAL MEDICINE.
and have seen no bad results from it ; I would not, however,
recommend it to my patients in this strength."
The solution in water, i part to 2000, will approximate i grain
to 41^ ounces of water.
Dr. Black recommends the following combination : Mercuric
chloride, gr. ij ; peroxide of hydrogen, fiSj. M. For use as an
injection in alveolar abscess and the pus pockets of pyorrhoea
alveolaris. As a solution of bichloride of mercury is prone to
undergo chemical changes, powders or tablets containing equal
quantities of the bichloride and ammonium chloride may be pre-
pared and a solution made by adding one of these to an ounce of
distilled water.
Another method is to take one drachm each of the bichloride
and hydrochloric acid, and add enough of distilled water to make
one ounce, which forms a permanent solution, strong enough, in
the proportion of a teaspoonful to a pint of water, to make a ster-
ilizing and disinfectant solution of i to 1000, for washing out pus
sacs and pus pockets in alveolar abscess and alveolar pyorrhoea.
Referring to the bichloride of mercury, benzoic and salicylic
acids and listerine. Dr. Miller says : Of these four, which are
available for the prophylactic treatment of the oral cavity, partic-
ularly of the teeth, the bichloride is, without doubt, the most
effective, because its action continues longer; and he further
says : " Unfortunately the bichloride of mercury possesses one
great disadvantage in its highly poisonous character. It seems,
however, scarcely possible that any harm could result from its use
in so dilute a form." (See Hydrargyri Chloridum Mite.)
Passing chlorine through an alcoholic solution of chloride of
mercury will prevent the decomposition of the latter when ex-
posed to light, or any change, by loss of chlorine, to mercurous
chloride.
Therapeutic Uses.—Corrosive sublimate is alterative in small
doses, and in large quantities it is a powerful irritant poison, cor-
roding the stomach and causing death in a very few hours. Its
continued use has caused salivation, but it has a less tendency to
produce such an effect than the other preparations of mercury.
Internally it is employed in secondary syphilis, chronic diarrhoea