US1304721A

US1304721A - Orthbdontia

Info

Publication number: US1304721A
Authority: US
Publication date: 1919-05-27
Anticipated expiration: 1936-05-27

Description

J. L. YOUNG.` omHOnoNTlA APPLIANCE.

APPLICATION FILED JULY 5.1918.

1,304,721 Patented May 27, 1919.

XJ /7 i EN? l 1.0?

ATTORNEYd UNITED sTATEs PATENT JACOB LOWE YOUNG, OE NEW ROCHELLE, NEW YORK.

oErlyIHoDoNTrAl llerinrnivCE.

Specification of Letters Patent.

Application filed July 5, 1918. Serial No. 243,351.

To allwhom t may concern:

Be it known thatl,V JACOB LOWE YOUNG, a citizen ofthe United States, and resident of New Rochelle, in the v`county of Westchester and State of New York, have -invented certain new and useful Improvements in Orthodontia Appliances, (Case 2,) of which the following is a specification. This invention relates to improvements in orthodontia appliancesl or tooth-regulatingk and retaining appliances of the arch-wire type. Appliances ofthis Vtype .comprise a curved arch wire or delivery member vof approximately the same form as the dental arch, means for connecting the delivery member to a tooth orteeth to be treated,

and means for anchoring the delivery7 mem- Q ber at or adjacent its ends to suitable anchor teeth, such as molars. VThe movement of the malposed tooth or teeth to normal position in the Vdental arch is accomplished by'distending, shifting or contract-'- ing the arch wire orbar relatively to the anchoring means either by shifting the arch wire bodily relatively to the anchoring means by adjusting nuts threaded 'on the wire, as shown, for example, in the patent to Angle, No. 626,476, dated June 6, 1899,

or by altering the length of the arch wire by bending, crimping, or stretching the wire, as shown, for example, in the patent to Angle and Young, No. 1,005,131, dated A October 10, 1911.

. teeth.

The present invention has for one of its objects the provision of more efficient means for detachably locking the arch wire or delivery member to the anchor Ateeth and the malposed teeth. Y

Another object of the invention is to prO- vide means fory connecting the delivery member to the anchor teeth and the inal-A posed teeth adapted for use with either of the two types of appliances above desc'ribed` and a further object is to provide detachably interlocked means adapted for use to connect either an inside; or outside arch wire with the `anchor teeth and malposed Another object of the invention'is to pro- 5'0 vide coperating sets of separably interlocked devices carried ,by the arch wireand teeth, respectively, for positively but releas- Patented May 27, 1919. A

ably locking the appliance in place in the.

mouth to prevent accidental displacement;

of the appliance, or removal of the appliance by the patient, especiallyk by children,

said separably interlocked devices being so constructed as to enable the appliance to be readily removed by the dental surgeon.

A further object is to provide interlocking connections between the arclrwire and the teeth, so constructed that thearch wire may extend around the arch in the same horizontal 'plane throughout its vlength and in planes different distances from the crowns of the teeth.' A f Another object of the invention is to pro-l vide cooperating sets of separably interlocked devices yheld to the arch wire .and

teeth, respectively, and so constructed that the devices will not engage the guml whenV interlocked; and still another vobject is to provide positively but separably interlock-` ing devices so constructed as'to'insure.v firm and rigid connections between the arch wire and the teeth and to prevent relatively lateral movement between thel coperating interlocked devices.

In the. drawings, Figure l is `a plan view of the appliance mounted on the teeth, showing one embodiment of the invention;

Fig. 2 a fragmentary side elevation;

Fig. 3 a detail view of a band adapted to be bent around a malposed tooth andl secured thereon by soldering its overlapped ends together, said band havingA soldered thereon the female member of' the interlocking connection vby which the arch wire 7 a vertical sectional view taken onV a detail perspective view ofthe d Fig. 8a view similarto Fig. 4-showing the interlocking connection between the arch wire and the band on a malposed tooth;

Fig. 9 a plan view of the Vconnection shown in Fig. 8;

Fig. 10 a vertical section taken on the line X-X of Fig. 8; and l Fig. 1l a plan view, partly in horizontal section, showing the mannerv of anchoring the arch wire when a tube and adjusting nut is employed for altering the length of the wire.

Referring to the various parts by numerals, 1 designates the metal bands fitted about the malposed teeth and 2 designates the usual anchor bands fitted about the molar or anchor teeth. The anchor bands 2 each have soldered or otherwise ksecured thereto the female member 3 of a separable connection. The female or socket inember comprises a back plate 4 soldered .to band 2 and bent to form inclined side walls 5 and vertical flanges 6 parallel with and spaced from the back plate. The lmember 3 thus formed provides a tapering socket, as clearly Vshown in Figs. 4 and 5, the front wall of which is slotted vertically throughout its length at 7. The male member 8 of the anchoring connection ycomprises a spring metal plate doubled -upon itself to form a back Ymember 9 and a front member 10, tapering from their upper ends to their lower ends and having their free lower ends normally spaced apart, as clearly shown in Figs. 6 land 7. The front portion 10 is provided with a vertically extending central rib 11 and the adjacent end of the arch wire or delivery meinber 12 is soldered to said rib at any desired Vpoint along the rib. 'The outer face of the front portion 10 of the member 8 is cut away along each side of the rib 11 from a point adjacent the free lower end thereof to a point adjacent its upper end, to form bev eled surfaces 18 and shoulders 14. It will be obvious that by pressing the

portions

9 and 10 of member 8 together and forcing the same downwardly through member' 3, the free ends of said portions will spring apart as soon as shoulders 14 pass the lower ends of flanges 6 until the beveled surfaces 18 en gage the inner sides of said flanges, whereupon the shoulders 14 will engage under the lower ends of the flanges and lock

members

3 and 8 against separation. During the act of interlocking

members

8 and 8, and after said members are interlocked, the rib 11 projects outwardly through the slot 7 and the arch wire 12 lies outsideofthe member 8.

The arch wire or delivery member 12- comprises a stiffl spring wire or bar curved or bowed to approximate the curvature of the dental arch, and has soldered thereto at the proper point or points the male members l5 of coupling devices for connecting the arch wire with the bands 1 tted about the malposed teeth. rihe members or posts 15 are formed of resilient metal and are preferably relatively flat in VVhorizontal section, the lower portion of each post being bent outwardly, as shown in Fig. 10. The posts 15 gradually decrease in width from their upper to their lower ends, and the side edges thereof are beveled as shown at 16. The rposts 15 are formed with vertical central ribs 17 on their outer faces and Athe arch wire or bar 12 is soldered to said ribs at any suitable or desired point along the length of the ribs. The outer face of each post is cut away alongeach sideof rib 17 to form shoulders 22 and beveled or inclined surdecreasingin depth towardzthe upper ends of the posts. Downwardlfy tapered female or socket members 18 `are soldered to Ythe bands 1, said `members @being 'of substantially the same construction :as fthesooket members 8, and comprisingl a :metallic plate `benttoasshown more clearlyin Figs. 8 and. 9, and Y the adjacent edges 'ofllanges- 2O are spaced apa-rt yto provide .anv `'opening-orvertical slot 21 extending throughout ithelength of thek socket member. Y

The members land 18are-interlocked by forcing the member l5 .downwardly into member 18, the'rib 117 onimember j18 passing through the slot 21 andthe arch wire 12 passing down along the-outer sides of flanges 20, as shown lin Figs. 8 to l0. Duringthe downward ino-vement Yof post =15 the out-` positively locking the coupling members 15V and 18 together.

The anchor lock above described `may also be employed in an appliance of the type heretofore described in which the arch wire or delivery member is supported at its ends in anchor tubes and is adjusted by means of nuts 'threaded on the arch'wire land engaging the tubes. Vhen so employed, 1 prefer to solder the back plate4 of the socketmember-3 to the anchor band 2 and solder the anchor tube 24 at the desired point along rib 11 on the fronty portion 10 of male inember 8, as shown in Fig. 11. With this construction it will be observed thatthe Vanchor tubes 24, arch'wire' 12, andadjusting nuts 25 may be removed bodily inassembled relation from the mouth vwithout the necessity of disturbing the adjustment ofthe nuts 25 on the arch wire.

The tapered formation of the male and socketmembers o-f the interlocking connections prevents lateral movement between the members and insuresa firm and rigid connection between the arch Wire and the teeth.

The interlocked

members

3 and 8 may he readily separated by pressing the lower end of the front portion of member 8 inwardly by means of a suitable implement and pulling upwardly on the arch wire 12. The

members

15 and 18 may be readily separated by pressing the outwardly bent lower end of member 15 inwardly and pulling up' wardly on the arch wire.

What I claim is:

1. An orthodontia appliance embodying an anchor band adapted for connection to a tooth, a tapered socket member xed on the outer side of said band and having its smaller end terminating intermediate the edges of the band, an arch member, a tapered post member of resilient material fixed to the arch member adapted to engage in said socket member and provided with an abutment adjacent its smaller end adapted to engage under the lower edge of the socket member.

2. An appliance of the class set forth embodying a band adapted to be secured about a tooth, a socket member fixed to the outer surface of the :band and provided with a slot or opening from top to bottom thereof, an arch wire, and a member secured to the arch wire and extending at an angle thereto and cut away to form inclined surfaces adapted to engage the inner surface of the socket member at each side of said slot and abutments adapted to engage one end of the socket member at opposite sides of said slot when said members are in engagement with each other.

3. An appliance of the class set forth embodying a band adapted to be secured to a tooth, a socket member fixed to said band and provided with a vertical slot extending from top to bottom thereof, a post member adapted to engage in said socket member and formed with a vertical rib adapted to project through said slot, and an arch member secured to said rib.

4. An appliance of the class set forth comprising a band adapted to be secured about a tooth, a socket member vxed to said band and having its outer wall slotted vertically throughout its length, a post member of resilient material formed with a vertically extending raised portion adapted to project through said slot and inclined surfaces at each side of saidraised portions, said'post member being also formed with abutments at one end of said inclined surfaces adapted to engage under one end of the socket member at opposite sides of said slot and being bent to cause that -portion of the member provided with the abutments to move outwardly automatically when the abutments pass beyond the end of the socket member, and an arch member secured to sai-d rib intermediate vthe ends of the post member.

5. An appliance of the class set forth comprising a band adapted to be secured about a tooth, a socket member xed to said band and having its outer wall slotted vertically throughout its length, a post member adapted to engage in said socket member formed of a strip of resilient metal doubled upon itself with its ends normally spaced apart, one portion of the doubled member being formed with a`vertically extending raised portion on its outer face adapted to project through said slot Vand inclined surfaces at opposite sides of the raised portion terminating adjacent the free end of said portion to form abutments adapted to engage one end of the socket member at opposite sides of the slot, and an arch member secured to said raised portion intermediate the ends of the post member.

6. Means for connecting the delivery member of an orthodontia appliance to a tooth band comprising a pair of relatively slidable post-andsocket members tapered longitudinally, one of said members having a yieldable portion carrying an abutment adapted to engage the smaller end of the other member to releasably lock the members together, and one of said members being fixed to the tooth band and the other member being removable with the delivery member.

7. Means for connecting the delivery member of an orthodontia appliance to a tooth band comprising a tapered socket member fixed on the tooth band slotted at one side throughout its length, a tapered post member having a yieldable portion provided with an abutment adapted to engage the edge of the smaller Yend of the socket member to 'detachably lock the post member in the socket member, said post member being formed with a longitudinally extending raisedportion adapted to project through ber adapted to be detahably interlocked With the first-mentioned coupling member l0 and to lie between the planes of the edges of the toot-h band When so interlooked.

This specification signed this 29th day of June, A. D. 1918.

,JACOB LOWE YOUNG.

Copies of this patent may be obtained for five Acents each, by addressing the Commissioner of Patents, Washington, D. Cl