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28 THE TIGHTENING OF LOOSE TEETH
put through the V-shaped space of the teeth around
the retamiug-wall.
The other teeth should be fixed in the same manner
(see Plate I.)
In case the last molar is loose or leaning backwards,
so that ligation in the mouth would offer difficulties,
put a narrow, strong collar round it ; then make the
retaining-wall, and solder.
The other teeth should be fixed by means of wires,
as described above.
If a tooth in a row of this kind must be previously
extracted, it should be fixed to the wall by means of
a strong cross-pin, after root resection has been per-
formed. The appliance cemented on, the tooth should
be inserted.
In case the perfect fixation of the teeth is deterior-
ating, the ligatures should be tightened and made as
efi'ective as possible at intervals i^see Plate I., upper
figure).
The gold wire on the market being brittle, the
casting of softer wire is advisable.
This may be obtamed by pressing a broken burr into
cuttlefish bone, and by funnel-shaped enlargement of
the hole formed.
This use of the burr facilitates the drawing down
into wire. In case several back teeth are lost, bridge-
work is to be advised.
The anterior extremity of the retaining appliance
of the back teeth must be anchored to the front
teeth.
28 THE TIGHTENING OF LOOSE TEETH
put through the V-shaped space of the teeth around
the retamiug-wall.
The other teeth should be fixed in the same manner
(see Plate I.)
In case the last molar is loose or leaning backwards,
so that ligation in the mouth would offer difficulties,
put a narrow, strong collar round it ; then make the
retaining-wall, and solder.
The other teeth should be fixed by means of wires,
as described above.
If a tooth in a row of this kind must be previously
extracted, it should be fixed to the wall by means of
a strong cross-pin, after root resection has been per-
formed. The appliance cemented on, the tooth should
be inserted.
In case the perfect fixation of the teeth is deterior-
ating, the ligatures should be tightened and made as
efi'ective as possible at intervals i^see Plate I., upper
figure).
The gold wire on the market being brittle, the
casting of softer wire is advisable.
This may be obtamed by pressing a broken burr into
cuttlefish bone, and by funnel-shaped enlargement of
the hole formed.
This use of the burr facilitates the drawing down
into wire. In case several back teeth are lost, bridge-
work is to be advised.
The anterior extremity of the retaining appliance
of the back teeth must be anchored to the front
teeth.
