Orthodontic device

Claim 2

An orthodontic device for use with a head gear for applying both tractional and torsional foRces to selected teeth, said device comprising: an inner bow lying substantially in a first plane and having spaced ends connectable to buccal attachments on posterior teeth; an outer bow lying substantially in a second plane and having spaced ends connectable to the head gear; means pivotally connecting said inner bow to said outer bow at the center of each so that said inner bow is pivotal with respect to said outer bow about an axis lying in at least one of said first and second planes; and resilient force-applying means connected between said inner and outer bows applying a torsional force about said axis to said inner bow and to the posterior teeth when the ends of the inner bow are connected to the buccal attachments and the ends of the outer bow are connected to the head gear.

Claim 3

An orthodontic device, as claimed in claim 1, wherein: said resilient means is a spring.

Claim 4

An orthodontic device, as claimed in claim 1, wherein said connecting means further includes: a connector rotatably mounted on said outer bow about said axis and having ends extending outwardly from the center of said outer bow along said axis; means on said connector intermediate said ends for detachably connecting said inner bow to said outer bow; and said resilient means comprises: first and second coil springs around said outer bow at opposite ends of said connector, each spring having one end fixedly connected to said outer bow and each having second ends interconnected with each other by an integral bridge wire engageable by said connector so that by rotating said connector about said outer bow on said axis a torsional force is applied by said coil springs to said connector and said inner bow.

Claim 5

An orthodontic device, as claimed in claim 1, wherein said inner bow comprises: means for attaching said inner bow at the center thereof to said connecting means; first and second spaced S-shaped segments extending from said connecting means and lying substantially in the first plane; and first and second arcuate segments also lying substantially in the first plane and extending, respectively, from said S-shaped segments to said ends, said arcuate segments being curved to extend around said teeth so that said ends are connectable to the buccal attachments, said S-shaped segments providing means for distorting said inner bow to apply additional forces to the buccal attachments.

Claim 6

An orthodontic device for attachment between a head gear and buccal attachments on posterior teeth, said device comprising: an outer bow having ends connectable to a head gear; and an inner bow lying substantially in a plane which includes: means at the center thereof connecting said inner bow to the center of said outer bow; first and second spaced S-shaped segments extending from said connecting means and lying substantially in the plane; and first and second arcuate segments lying substantially in the plane and extending, respectively, from said S-shaped segments to said ends, said arcuate segments being curved to extend around said teeth so that said ends are connectable to the buccal attachments, said S-shaped segments providing means for distorting said inner bow to apply additional forces to the buccal attachments.

Claim 7

An orthodontic device for attachment between a head gear and buccal attachments on posterior teeth, said device comprising: an outer bow having ends connectable to a head gear; and an inner bow lying substantially in a plane which includes: means at the center thereof connecting said inner bow to the center of said outer bow; first and second spaced S-shaped segments extending from said connecting means and lying substantially in the plane; and first and second arcuate segments lying substantially in the plane and extending, respectively, from said S-shaped segments to said ends, said arcuate segments being curved to extend around said teeth so that said ends are connectable to the buccal attachments, said S-shaped segments providing means for distorting said inner bow to apply additional forces to the buccal attachments.

Claim 8

In an orthodontic device having an outer bow lying substantially in a first plane with ends connectable to a head gear and an inner bow lying substantially in a second plane and connected at its center to the center of said outer bow, said inner bow having spaced ends connectable to buccal attachments on posterior teeth for applying torsional and tractional forces thereto, the improvement comprising: means for pivotally connecting the center of said inner bow to the center of said outer bow for rotation of said inner bow with respect to said outer bow about an axis lying in at least one of said first and second planes; and resilient force-applying means connected between said inner and outer bOws applying a torsional force about said axis to said inner bow and to the posterior teeth when the ends of the inner bow are connected to the buccal attachments and the ends of the outer bow are connected to the head gear.

Claim 9

In an orthodontic device having an outer bow lying substantially in a first plane with ends connectable to a head gear and an inner bow lying substantially in a second plane and connected at its center to the center of said outer bow, said inner bow having spaced ends connectable to buccal attachments on posterior teeth for applying torsional and tractional forces thereto, the improvement comprising: means for pivotally connecting the center of said inner bow to the center of said outer bow for rotation of said inner bow with respect to said outer bow about an axis lying in at least one of said first and second planes; and resilient force-applying means connected between said inner and outer bOws applying a torsional force about said axis to said inner bow and to the posterior teeth when the ends of the inner bow are connected to the buccal attachments and the ends of the outer bow are connected to the head gear.

Claim 10

In an orthodontic device, as claimed in claim 6, wherein: said resilient means is a spring.

Claim 11

In an orthodontic device, as claimed in claim 6, said connecting means further including: a connector rotatably mounted on said outer bow about said axis and having ends extending outwardly from the center of said outer bow along said axis; means on said connector intermediate said ends for detachably connecting said inner bow to said outer bow; and said resilient means comprises: first and second coil springs around said outer bow at opposite ends of said connector, each spring having one end fixedly connected to said outer bow and each having second ends interconnected with each other by an integral bridge wire engageable by said connector so that by rotating said connector about said outer bow a torsional force is applied by said coil springs to said connector and said inner bow.

Claim 12

In an orthodontic device, as claimed in claim 6, the improvement in said inner bow further comprising: means for attaching said inner bow at the center thereof to said connecting means; first and second spaced S-shaped segments extending from said connecting means and lying substantially in said second plane; and first and second arcuate segments also lying substantially in said second plane and extending, respectively, from said S-shaped segments to said ends, said arcuate segments being curved to extend around said teeth so that said ends are connectable to the buccal attachments, said S-shaped segments providing means for distorting said inner bow to apply additional forces to the buccal attachments.

Claim 13

An orthodontic device for use with a head gear for applying both tractional and torsional forces to selected teeth, said device comprising: an inner bow lying substantially in a first plane and having spaced ends connectable to buccal attachments on posterior teeth; an outer bow lying substantially in a second plane and having spaced ends connectable to the head gear; a connector rotatably mounted on said outer bow about an axis lying in at least one of said first and second planes and having ends extending outwardly from the center of said outer bow along said axis; means on said connector intermediate said ends for detachably connecting said inner bow to said outer bow; first and second coil springs around said outer bow at opposite ends of said connector, each spring having one end fixedly connected to said outer bow and each having second ends interconnected with each other by an integral bridge wire engageable by said connector so that by rotating said connector about said outer bow on said axis a torsional force is applied by said coil springs to said connector and said inner bow; and an anterior clip having a first end attachable to said connecting means at the center thereof so that said clip extends in the direction of the ends of the inner bow and intermediate thereof and has a second end for attachment to the center of an arch wire attached to the teeth.

Claim 14

An orthodontic device for use with a head gear for applying both tractional and torsional forces to selected teeth, said device comprising: an inner bow lying substantially in a first plane and having spaced ends connectable to buccal attachments on posterior teeth; an outer bow lying substantially in a second plane and having spaced ends connectable to the head gear; a connector rotatably mounted on said outer bow about an axis lying in at least one of said first and second planes and having ends extending outwardly from the center of said outer bow along said axis; means on said connector intermediate said ends for detachably connecting said inner bow to said outer bow; first and second coil springs around said outer bow at opposite ends of said connector, each spring having one end fixedly connected to said outer bow and each having second ends interconnected with each other by an integral bridge wire engageable by said connector so that by rotating said connector about said outer bow on said axis a torsional force is applied by said coil springs to said connector and said inner bow; and an anterior clip having a first end attachable to said connecting means at the center thereof so that said clip extends in the direction of the ends of the inner bow and intermediate thereof and has a second end for attachment to the center of an arch wire attached to the teeth.