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traded with great care. When this has been done, the cav-
ity in the tooth should be cleared out as much as possible,
'
and some gold-leaf be introduced, so as completely to fill
it up.
After the cavity has been thus stopped, the teeth are to be
restored to their sockets, and there to be confined by a liga-
ture : they will soon fix, and in a few days be as secure as
ever, and may afterwards remain, without inconvenience,
for a great number of years.
If the fracture of a tooth should be so great as in fig. 11,
the patient must submit to extraction ; or if he should be
desirous to preserve the appearance of his mouth, he may be
recommended to have the remainder of the tooth filed away,
so as to make the fang even with the gums ; and, in the
manner hereafter to be described, have a tooth fixed to the
fang by means of a pivot.
When a blow has been received upon a tooth, so as to
loosen it, if the person be young, it will become fast again;
but it gradually looses the whiteness of its colour, and at
length acquires a bluish tinge.
When the like accident occurs to a person rather advanced
in life, a disease usually takes place about the fang, which
eventually affects the socket, the tooth becomes very loose
and must be extracted.
A young gentleman had the central incisors broken by a
cricket-ball, as represented in fig. 9. The fracture did not
extend into the cavity, In this case the teeth were filed, so
as to remove the irregular portion, and bring them as nearly
as possible, into a line with the other teeth.
Fig. 10, represents a posterior view of the central incisors
of a young gentleman, who, falling on his face, struck his
mouth against a stone. So much of the teeth were broken
off as to uncover the membrane ; the entrance into the cavity