вход по аккаунту


Патент USA US3087256

код для вставки
April 30, 1963 I ’
Filed June 28, 1961
‘Poss??- J- Hun-1W5?
United States Patent 0 ”
Patented Apr. 30, 1963
devices commonly used today, this is impossible, since
the ligature wire must ?rst be removed and then after the
Robert J. Huettner, 397 W. Montauk Highway, Bayshore,
N.Y., and Chalmers M. Goodyear, 31 Woodland St.,
Huntington, N.Y.
Filed June 28, 1961, Ser. No. 120,357
7 Claims. (Cl. 32-44)
This invention relates to an orthodontic attachment
adjustments are made, a new ligature wire must be thread
ably inserted, twisted and cut. The latter process not only
requires greater time, but it is also more painful and
uncomfortable for the patient.
Still another object of the present invention is to pro
vide an orthodontic attachment which has no sharp edges
and which will not cut or irritate the oral tissues as is
device used by dentists in conjunction with an orthodontic 10 the case with ligature wires. The surfaces of the present
invention are smooth and compact, there are no loose or
arch wire for the straightening of malpositioned teeth.
cut wires. In addition, the snap clamp will not loosen
More particularly, the invention relates to an orthodontic
from its set position once it has been inserted, while
attachment device which retains the orthodontic arch wire
ligature wires tend to give somewhat as time goes by
that is used to direct the necessary and proper forces on
15 and the “pigtail” of the ligature tie wire may move out
malpositioned teeth.
of place and injure the oral tissues.
Generally described, the invention comprises an arch
Another object of the construction of the orthodontic
wire retaining member which is preferably cylindrical in
attachment of this invention is that it is more dif?cult for
shape. The base of the retaining member is welded or
the patient to remove or tamper with the appliance once
otherwise suitably secured to the conventional orthodontic
tooth band or other base that may be af?xed to a tooth 20 it is set and therefore far superior orthodontic results are
to be straightened. ‘The top surface of the wire retain
Other additional objects and advantages of the present
ing member is provided with a downwardly extending
invention will be recognized during a reading of the
channel which is adapted to retain the conventional
following description taken in conjunction with the ac
orthodontic arch wire. The wire retaining member is also
provided with a peripheral recess which intersects the out 25 companying drawings referred to, wherein:
FIG. 1 is a top plan view showing the general use of
side edges of the downwardly extending channel near the
the invention attached to a selected tooth in a dental arch;
top of the wire retaining member. The peripheral recess
FIG. 2 is a perspective view of the invention with the
is constructed to retain a removable snap clamp, such as
snap clamp removed;
a retaining ring. The retaining snap clamp is of such a
FIG. 3 is a prespective view of the invention showing
construction that when it is inserted into the peripheral
the orthodontic arch wire in the bracket and the snap
recess it has sections that overlap and block the outside
clamp attached;
portions of the downwardly extending channel. The snap
FIG. 4 is a vertical cross-sectional view taken along
clamp is retained in the peripheral recess by a press or
lines 4-44 of FIG. 3; and
snap ?t. The wire retaining member may also be pro
vided with a second channel extending upwardly from 35 FIG. 5 is a horizontal cross-sectional view taken along
the bottom thereof and at 90° to the above described
downwardly extending channel.
The orthodontic attachment device of this invention
overcomes many of the disadvantages of the wire retain
lines 5—5 of BIG. 3.
Referring now to the ?gures which show the preferred
embodiment, the orthodontic arch wire retaining member
is designated by reference numeral 10. The bottom face
ing devices presently used by dentists. One of the most 40 of this member may be welded or otherwise a?ixed to a
base plate which is used to retain the attachment against
common devices used today is known as a standard edge
a particular tooth. As shown in the drawings, the base
wise appliance. This device has a body member which
of the attachment retaining member is welded to a tooth
is channeled to receive an orthodontic wire. It also has
band 11. The band shown is conventional and is wrapped
parallel recesses removed from the edges of the base
which ‘are parallel to the channel. To retain an ortho 4.5 around the malpositioned tooth as is shown in FIG. 1.
The top face of the orthodontic arch wire retainng mem
dontic wire within the channel of this device it is essen
ber 10 is provided with a downwardly extending chan
tial to weave a ligature wire over the orthodontic wire
nel 12. Channel 12 extends from the top surface to
and pass it under the base recesses and then twist it over
ward, but not extending completely through to the bot
the orthodontic wire and twist it to form in effect a
tourniquet. The ends of the twisted ligature wire may 50 tom surface of the attachment retaining member. It is
then be cut or bent.
This kind of appliance has many
disadvantages which are eliminated by the present inven
preferable that channel 12 be centrally disposed through
the top surface of the retaining member 10. When the
retaining member is cylindrical, as shown in the draw
ings, channel 12 should be diametral. The width of
The most important object of the present invention is
the elimination of ligature wires to hold the orthodontic 55 channel 12 should be slightly larger than the width of a
standard orthodontic arch wire. Arch wires may vary
in thickness but generally are within the range of .018
.022 inch.
An inwardly extending rectangular recess 13- is pro
or ring may be inserted without any twisting or crimping,
thus there is a substantial reduction in any torquing elfect 60 vided around the entire periphery of the retaining mem
ber :10‘. It is preferable that recess 13 be spaced toward
that is inherent with the use of ligature tie wires. The
the top of retaining member [10 and it is essential that it
torquing effect can loosen the connection between the re
intersect channel 12 at a point spaced su?iciently above
taining member attachment and the tooth band and thus
the bottom of said channel so that an arch wire may rest
weaken or destroy the entire appliance.
Another important object of this invention is to pro 65 within the channel below the recess. This is shown in
FIG. 4, where su?icient room is provided between the
vide an orthodontic arch wire bracket which permits ease
bottom of channel 12 and the bottom of recess 13‘ to per
of installation, retention and adjustment of the ortho
mit the retention of an orthodontic arch wire 14. The
dontic arch wire. With the present invention it is only
width of recess 1'3 should be slightly larger than the thick
necessary to remove the snap clamp from the peripheral
recess about the bracket in order to free the arch wire for 70 ness of snap clamp 15 which will be hereinafter de
adjustments and then simply replace the ring to retain
arch wire within the bracket retaining member. It is now
possible to retain the arch wire in place through the use
of a removable snap clamp or retaining ring. The clamp
the wire after the adjustments have been made. With the
The snap clamp 15 is shaped to register within recess
13 in a press or snap ?t condition. In the drawings, the
snap clamp or ring 15 is substantially semi-circular or
horseshoe shaped to correspond with the shape of the
retaining member 10. It is provided with two inwardly
extending sections 16 adjacent the free ends of its semi
circular shape and a centrally disposed inwardly protrud
.010 to .14 inch and extend inwardly about .018 inch.
The snap clamp 15 has a thickness of about .010 inch
and the distance between the faces of the inwardly pro
truding sections 16 should be between .040‘ and .060 inch
depending upon the inside diameter of recess 13. In all
cases this distance should be at least .001 inch smaller
ing toe 1‘7.
than the diameter.
Inwardly extending sections 16 of ring or
The outside diameter of snap clamp
clamp 15 are constructed to horizontally overlap chan
15 should be between .12 and .15 inch so that about .04
nel 12 when the ring or clamp is inserted in recess 13.
inch extends beyond the periphery of retaining member
The inserted snap clamp is shown in FIG. 4. When the 10 10 when the snap clamp is in the holding position. The
clamp is thus inserted, the toe 17 abuts the inside wall
bottom channel may be about .020 inch square and the
of the recess and prevents the clamp from becoming mis
space between the ‘top face of member 10- and recess 13
about .010 inch.
aligned by excessive inward pressure. The distance be
tween the inside faces of sections 16 of clamp 15 should
Any suitable metal may be used for the orthodontic
be slightly less than the inside diameter of recess 13 so 15 attachment of this invention, but it should be of such
that a press or snap ?t is achieved by the clamp. The
a nature to be readily machined and welded and be cor
outside diameter of clamp 15 should be larger than the
rosion resistant. It has been found that stainless steel
diameter of retaining member 10 so that there is a slight
is most satisfactory although precious metals may also
protrusion of the clamp when it is inserted. This pro
be :used although less economical.
truding area assists both in the insertion and the removal 20
It can be seen ‘from the above description that the
of the clamp.
present invention affords a new and improved orthodontic
The orthodontic arch wire retaining member 10 may
attachment device which overcomes the disadvantages of
be provided with a second channel 18 at the bottom
the present day devices requiring the use of ligature
thereof extending upwardly and at 90° to channel 12.
wires and the like. Although the invention has been
Channel 18 is not as deep as channel 12 and may termi 25 shown and described herein, it is understood that cer
nate at the intersection thereof.
It is preferable that
tain changes and additions may be made without de
channel 18 also be centrally disposed within the bottom
parting from the spirit and scope of this invention.
We claim:
1. An orthodontic appliance comprising an orthodontic
of member 10.
In commercial use, the orthodontic arch wire retaining
member 10 would ?rst be welded to a suitable base such 30 arch wire retaining member having a base adapted to
as a tooth band 11. The tooth band is then shaped to
be secured to a tooth, said member provided with a
surround the malpositioned ‘tooth to be straightened with
the retaining member extending either outwardly or in
downwardly extending channel adapted to hold an or
thodontic wire, said member having a peripheral re
wardly depending upon the particular forces desired.
cess intersecting said channel, said retaining member
Usually, however, it extends outwardly and the channel 35 having a removably a?ixed snap clamp Within said re
12 horizontal and channel 18 vertical. The orthodontic
cess, said clamp adapted to be retained in said recess
arch wire 14 is then inserted into channel 12 and rests
and above the orthodontic wire when said wire is in said
upon the bottom thereof. When the wire is in place,
the snap clamp ‘15 is then inserted and press ?tted into
2. An orthodontic appliance comprising a tooth band,
recess 13 with the use of van appropriate tool. The in
an annular orthodontic arch wire attachment member
wardly extending sections 16 of clamp 15 would overlap
a?ixed to said band, said member provided with down
and cover channel '12 at areas adjacent the periphery of
wardly extending diametral channel, said member pro
retaining member 10- so that the orthodontic arch wire
vided with an annular recess intersecting said channel,
14 is trapped below the snap clamp within channel 12. 45 said attachment member provided with a removably af
With the arch wire held in this manner within channel
?xed substantially semicircular snap clamp having in
12, the normal forces may be exerted to direct the mal
wardly extending sections at the ends thereof registering
positioned tooth into its proper position.
within said annular recess, said clamp adapted to be
If adjustments are necessary (the snap clamp may be
retained in said annular recess.
readily removed with a proper tool by extracting it from 60
3. An orthodontic appliance comprising an orthodontic
its press ?t position and the orthodontic arch wire ad
arch wire retaining member having a bottom base face
justed and then simply by replacing the clamp the wire
surface and an exposed top face surface, said member
having a downwardly extending channel from said top
is once again locked in position.
In special cases where unusual and/or severe forces
face and an upwardly extending channel from said bot
are necessary, such as in cases of serious malocclusion, 55 tom face at right angles to said downwardly extending
channel 18 may be used to accommodate an elastic
channel, said member also having a peripheral recess
ithread, ?ne gauge wire, coil springs or any other mecha
intersecting said downwardly extending channel, said re
taining member being provided with a removably a?ixed
snap clamp, said clamp adapted to be retained in said
nism that would be necessary in the particular operation.
Such auxiliary holding devices can be threaded through
channel 18 and attached to either the arch wire or an
other attachment retaining member.
4. An orthodontic appliance comprising a cylindrical
orthodontic arch wire retaining member, said member
provided with a downwardly extending channel and an
vice should be as small as possible so that it does not
inwardly extending annular recess intersecting said chan
encumber the mouth, but still large enough to insure 65 nel adjacent the top thereof, said retaining member hav
suf?cient strength and working area around the various
ing a removably a?ixed snap ring, said ring adapted to
parts. The total height of member 10 should be approxi
be retained in said annular recess.
mately .04 to .07 inch and have a diameter of about .08
5. An orthodontic appliance comprising a cylindrical
to .10 inch. It is preferable that the channel 12 should
orthodontic arch wire retaining member having a bottom
extend downwardly approximately .03 to .06 inch de 70 base face surface and an exposed top ~face surface, the
pending upon the overall height and should have a width
top face of said member provided with a diametral down~
of about .02 to .025 inch which is slightly larger than the
‘wardly extending channel and the bottom face of said
‘thickness of the arch wire. The clearance between the
member provided with an upwardly extending channel
walls of channel 12 and the wire should be .001 to .003
at right angles to said downwardly extending channel,
inch. The recess 13‘ should have a thickness of about 75 said ‘wire retaining member having an inwardly extend
Although ‘the dimensions of the orthodontic arch wire
retaining member are, to a degree, not critical, the de
ing annular recess intersecting said downwardly extend
ing channel adjacent the top thereof, said retaining mem
ber provided with a removably affixed semi circular
snap ring having inwardly extending sections at the
ends thereof, the distance between said sections being
slightly less than the inside diameter of said annular
recess, said snap ring ‘adapted to be retained in said
retaining member having a downwardly extending dia
metral channel through the major portion of said mem
ber, said channel adapted to retain an orthodontic arch
wire, the bottom surface of said retaining member hav
ing an upwardly extending diametral channel through
a minor portion of said member and at ‘90° to said down
wardly extending channel, said retaining member being
provided with an inwardly extending annular recess ad~
6. An orthodontic appliance comprising a base plate,
jacent the top surface thereof and spaced from the bottom
face, said bottom face being a?ixed to said base member,
said retaining member being provided with a centrally
circumference of said retaining member, said retaining
an orthodontic arch wire retaining member having a 10 of said downwardly extending channel, said recess inter
secting said downwardly extending channel adjacent the
bottom ‘base face surface and an exposed top‘ face sur
member provided with a removable horseshoe shaped
snap ring having inwardly projecting sections at the
disposed channel extending downwardly from the top
face through the major portion of said member, said 15 free ends thereof and a centrally disposed inwardly pro
channel adapted to receive an orthodontic arch wire,
said retaining member provided with an inwardly ex
jecting toe, said snap ring having a thickness slightly
less than the thickness of said annular recess and adapted
to be retained therein by a press ?t between said in
tending peripheral recess adjacent the top surface thereof,
wardly extending sections and the inside circumferential
said recess intersecting said centrally disposed channel
adjacent the edges of said retaining member, said re 20 walls of said recess, said inwardly extending snap ring
section interrupting said downwardly extending channel
taining member having a snap clamp, said clamp having
adjacent the outside ends thereof and spaced from the
substantially the same shape as said recess and adapted
bottom of said channel.
to be press ?tted therein.
7. An orthodontic attachment comprising a base
References Cited in the ?le of this patent
adapted to be fitted to a tooth, a cylindrical orthodontic 25
arch wire retaining member having bottom base face
surface and an exposed top face surface, said bottom
face being a?ixed to said base, the top surface of said
Laskin _______________ __ Aug. 7, 1945
Без категории
Размер файла
497 Кб
Пожаловаться на содержимое документа