Page 456 - My FlipBook

454 DENTAL MEDICINE.

jection is desired, and in i to 2 per cent, solution for dressing
wounds and sterilizing instruments and also the hands.

DENTAL FORMULA.
Mouth Wash.
R. Lysol ^ss
Aquae ^xvj. M.

For Alveolar Pyorrhoea,
Dr. F. T, Van Woert.
R. Lysol f^ij
Tinct. capsicum gtt. xv
Tinct. Iodine f M.
5 j.
SiGNA.—Five drops in one-half glass of water used as a wash in
cleansing teeth with a brush.

MAGNESIA—CALCINED MAGNESIA.
Formula.—MgO.
Derivation.—Magnesia is obtained by exposing carbonate of
magnesium to a red heat, and thus expelling all of the car-
bonic acid, which is shown by a want of effervescence on the
addition of dilute sulphuric acid. It is very light, and of a white
color and odorless, and in the form of powder, with an earthy
taste, and slightly soluble in water, more so in cold than in hot
water.
Medical Properties and Action.—Magnesia is antacid and laxa-
tive, its laxative effect being the result of the combination it forms
with the three acids of the stomach and intestines. After its
effects are exerted in the intestinal canal, it becomes absorbed
and renders the urine alkaline. Large doses, when administered
for a considerable time, may accumulate in the bowels ; such an
effect may be avoided by administering it with lemonade, which
renders it more soluble. Being mild and unirritating, it is well
adapted for children, and is an excellent remedy for great acidity
in the stomach. It is the antidote for poisoning by the mineral
acids.