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312 DENTAL MEDICINE.
Dose. —Of the hypophosphites, gr. iij to gr. xv, three times a
day in syrup.
Dental Uses.—The hypophosphite of lime is the most eligible
salt, but the different sulphites are often administered together in
the form of a syrup. Where there is nervous depression, as a
result of trigeminal neuralgia, the hypophosphites prove service-
able. In the case of delicate children, where there is reason for
believing the phosphate of lime, or the lime salts generally of the
teeth, are deficient in quantity.
CALENDULA.
MARIGOLD.
Source.—Calendula is a well-known garden plant, sometimes
growing wild, with a peculiar and rather disagreeable odor, and a
bitter, rough, saline taste. Both the leaves and the flowers are
employed.
Medical Properties and Action.— It is slightly stimulant, dia-
phoretic, antispasmodic, sudorific, and emmenagogue, but is sel-
dom used internally. It contains a bitter principle known as
calenduUn.
Therapeutic Uses.—Calendula has been employed in low forms
of fevers, scrofula, jaundice, amenorrhea, etc. Externally it is
used in the form of tincture— Tinctura Calendula—in its full
strength or diluted, and is very serviceable in exercising a cura-
tive influence in the treatment of incised wounds and contusions,
preventing inflammation and suppuration. Some writers consider
it to be unequaled as a local application after surgical operations,
as it promotes union by first intention. It is applied as a lotion
on lint. It is also thought to be a preventive against gangrene
and tetanus.
Dose.—Of the tinctura of calendula, f5j to f5ij.
Dental Uses.—Calendula, in the form of tincture, is employed
in dental practice as an application to wounded or irritated pulps
of teeth, when partially exposed; also after the extraction of
teeth ; wounds about the mouth ; and in such cases it proves a
very useful remedy. A few drops added to a wine-glass of water
form a soothing and efficient mouth-wash for the soreness result-