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P. 705
O
APPLIANCES, MATERIALS, METHODS, AND FORCES EMPLOYED. 703
desired wire or screw, take a strip three and one-third times the diam-
eter of the wire or screw.
Magill Band.—The invention of Dr. W. E. Magill. A strip of
platinum, gold plate, or German silver, No. 30 to 36 B. & S. gauge,
preferably the latter, from ^ to ^ of an inch wide,
^^^' ^•^^"
bent around a tooth in the mouth or on a plaster cast,
and soldered at the overlapping ends. This is cemented j^^^ f^^^
to a tooth with zinc phosphate. (See Figs. 622, 647,
Magin bands
et seq.)
Adjustable Band (Angle's).—A band of German silver from
| to 1 of an inch wide and No. 36 B. & S. gauge, to one end of which
is soldered a short tube and to the other a screw, which is passed
through the tube and tightened around the tooth with a nut. (See
Fig. 621.) Cement should be placed inside the band before apply-
ing it.
Band Ribbon.—This is best made from platinum or German silver
wire No. 13, rolled to No. 34 or No. 36 plate. This is tougher than
when cut from plate of the same thickness. For the anterior teeth the
writer often uses, however, gold-faced platinum rolled to the gauge
mentioned. It has the strength of platinum and the color of gold,
which is preferred by many patients.
To this band may be soldered a tube, hook, screw, or any appliance
desired.
Jack-screw (Angle's).—A tube pointed at one end, in which is
inserted a screw about No. 16 B. & S. ffausre,
Fig. 623. . , . ,, -, n ^ f
^^^ with a nut resting on the open end oi the tube.
V^,T.^^^^^ The end of the screw is flattened or bifur-
Angle s jack-screw.
cated. The length of the tube determines
the length of the jack-screw. (See Figs. 623 and G43.)
Drag-screw (Angle's).—A wire t- />o^
^ -^ Fig. 624.
bent at right angles at one end, , .- - - ^a—
threaded at the other with a nut. (See
r ig. 0-<4. j r^^^aiB^^Bmm^^Kai^m^^nCMn
Piano "SYire.—Piano strings. Steel ^
'^ . , , .
Angle s drag-screw.
wire, elastic, yet soft enough to bend
easily with pliers, from No. 20 to No. 24 B. & S. gauge : used for
springs and elastic levers. (No. 20 B. & S. gauge corresponds to
about No. 15 of piano wire gauge.)
Ligatures.—Floss silk well waxed.
Twisted Ligatures.—Twisted silk No. A or 00 or linen thread
unbleached No. 50, well waxed.
These are very useful in moving teeth, either ligated directly on the
teeth or in connection with other appliances. When tied tightlv from
APPLIANCES, MATERIALS, METHODS, AND FORCES EMPLOYED. 703
desired wire or screw, take a strip three and one-third times the diam-
eter of the wire or screw.
Magill Band.—The invention of Dr. W. E. Magill. A strip of
platinum, gold plate, or German silver, No. 30 to 36 B. & S. gauge,
preferably the latter, from ^ to ^ of an inch wide,
^^^' ^•^^"
bent around a tooth in the mouth or on a plaster cast,
and soldered at the overlapping ends. This is cemented j^^^ f^^^
to a tooth with zinc phosphate. (See Figs. 622, 647,
Magin bands
et seq.)
Adjustable Band (Angle's).—A band of German silver from
| to 1 of an inch wide and No. 36 B. & S. gauge, to one end of which
is soldered a short tube and to the other a screw, which is passed
through the tube and tightened around the tooth with a nut. (See
Fig. 621.) Cement should be placed inside the band before apply-
ing it.
Band Ribbon.—This is best made from platinum or German silver
wire No. 13, rolled to No. 34 or No. 36 plate. This is tougher than
when cut from plate of the same thickness. For the anterior teeth the
writer often uses, however, gold-faced platinum rolled to the gauge
mentioned. It has the strength of platinum and the color of gold,
which is preferred by many patients.
To this band may be soldered a tube, hook, screw, or any appliance
desired.
Jack-screw (Angle's).—A tube pointed at one end, in which is
inserted a screw about No. 16 B. & S. ffausre,
Fig. 623. . , . ,, -, n ^ f
^^^ with a nut resting on the open end oi the tube.
V^,T.^^^^^ The end of the screw is flattened or bifur-
Angle s jack-screw.
cated. The length of the tube determines
the length of the jack-screw. (See Figs. 623 and G43.)
Drag-screw (Angle's).—A wire t- />o^
^ -^ Fig. 624.
bent at right angles at one end, , .- - - ^a—
threaded at the other with a nut. (See
r ig. 0-<4. j r^^^aiB^^Bmm^^Kai^m^^nCMn
Piano "SYire.—Piano strings. Steel ^
'^ . , , .
Angle s drag-screw.
wire, elastic, yet soft enough to bend
easily with pliers, from No. 20 to No. 24 B. & S. gauge : used for
springs and elastic levers. (No. 20 B. & S. gauge corresponds to
about No. 15 of piano wire gauge.)
Ligatures.—Floss silk well waxed.
Twisted Ligatures.—Twisted silk No. A or 00 or linen thread
unbleached No. 50, well waxed.
These are very useful in moving teeth, either ligated directly on the
teeth or in connection with other appliances. When tied tightlv from
