Intraoral growth appliance

• US 6,099,304 A
• Filed: 09/22/1999
• Issued: 08/08/2000
• Est. Priority Date: 09/22/1999
• Status: Expired due to Fees

• Current Assignee: David D. Carter
• Original Assignee: David D. Carter
• Inventors: Carter, David D.
• Primary Examiner(s): Lucchesi, Nicholas D.
• Application Number:
  US09/400,584
• Time in Patent Office: 321 Days
• Field of Search: 433/18, 433/19, 433/24
• US Class Current: 433/19
• CPC Class Codes: A61C 7/36 Devices acting between upper and lower teeth

Abstract

The present invention is a method and intraoral appliance for correcting malocclusions, incorporating an adjustment assembly and a placement assembly. The adjustment assembly is mounted to a tooth of the maxilla, and the placement assembly is mounted to a corresponding tooth of the mandible. The adjustment assembly cooperates with the placement assembly when the jaws are drawn together, in order to correct the patient'"'"'s malocclusion. The amount of correction to the malocclusion is finely, continuously adjustable through the adjustment assembly. The adjustment assembly includes a first tooth attachment for mounting the adjustment assembly to a tooth on the maxillary jaw, an adjusting mechanism to lengthen or shorten the distance of forward positioning imparted to the patient'"'"'s mandibular jaw, an abutment member to preserve the proper forward-moving force once the patient'"'"'s jaws are properly closed, and an inhibiting member that inhibits the patient from closing his/her mouth unless the jaws are properly seated relative to one another as defined by the appliance settings. The placement assembly includes a second tooth attachment for mounting the placement assembly to a tooth on the mandibular jaw and a projection element extending from the second tooth attachment. The projection element has a stop end capable both of engagement with the inhibiting member of the adjustment assembly when the patient'"'"'s jaws are not properly seated, and engagement with the abutment member of the adjustment assembly when the jaws are properly closed.

Claims

1. An intraoral appliance for the mouth of a patient with a malocclusion of the maxillary and mandibular jaws, the malocclusion incorporating an offset distance of one of said jaws relative the other jaw, the maxilla and mandible having teeth with crowns, the mouth having an anterior and posterior end and a left and right side, said appliance capable of deterring improper closure of the jaws and maintaining proper closure of the jaws, said appliance comprising:

a. an adjustment assembly having a first tooth attachment capable of mounting said adjustment assembly to a tooth of one of the maxilla or mandible, an adjusting mechanism extending from said first tooth attachment capable of defining proper and improper closure of the jaws, said adjusting mechanism further capable of adjusting the amount of offset distance between the maxilla and mandible during proper closure of the jaws, said adjusting mechanism capable of providing incremental and continuous adjustment to the offset distance, an abutment member extending from said adjusting mechanism, said abutment member capable of maintaining proper closure of the jaws, and an inhibiting member extending from said abutment member, said inhibiting member capable of deterring improper closure of the jaws; and

b. a placement assembly having a second tooth attachment capable of mounting said placement assembly to a tooth of the other of the maxilla or mandible, a projection element extending from said second tooth attachment, and a stop end on said projection element;

said adjustment and placement assemblies mounted on respective teeth by said first and second tooth attachments, respectively, so as to place said inhibiting member of said adjustment assembly in alignment with said stop end of said projection element of said placement assembly, said alignment enabling said inhibiting member to contact said stop end during improper closure of the jaws, and said alignment enabling said abutment member to engage said stop end of said projection element during proper closure of the jaws.

2. The intraoral appliance of claim 1, wherein said first tooth attachment comprises a dental band.

3. The intraoral appliance of claim 2, wherein said second tooth attachment comprises a dental band.

4. The intraoral appliance of claim 1, wherein said adjusting mechanism incorporates an adjustment shielding device capable of selectively shielding adjustment of said appliance from the patient.

5. The intraoral appliance of claim 1, wherein said adjusting mechanism incorporates an adjustment locking device capable of preventing the accidental adjustment of said appliance.

6. The intraoral appliance of claim 1, wherein said adjusting mechanism comprises two opposing body members, a first and a second body member, said body members separated by a distance, said first body member connected to said first tooth attachment, said second body member attached to said abutment member, said body members in communication with each other through an adjustment screw that, upon rotation, is capable of adjusting the distance separating the opposing body members, in turn altering the posterior-anterior position of said abutment member.

7. The intraoral device of claim 6, wherein said adjustment screw has an actuating ring oriented coaxially with said adjustment screw.

8. The intraoral device of claim 7, wherein said adjusting mechanism further incorporates an anti-torque device capable of stabilizing said body members upon rotation of said adjusting screw.

9. The intraoral device of claim 8, wherein said anti-torque device comprises a rod extending from one said body member and through a portion of said other body member.

10. An intraoral appliance for the mouth of a patient with a malocclusion of the maxillary and mandibular jaws, the malocclusion incorporating an offset distance of one of said jaws relative the other jaw, the maxilla and mandible having teeth with crowns, the mouth having an anterior and posterior end and a left and right side, said appliance capable of deterring improper closure of the jaws and maintaining proper closure of the jaws, said appliance comprising:

a. an adjustment assembly having a first tooth attachment capable of mounting said adjustment assembly to a tooth of one of the maxilla or mandible, an adjusting mechanism extending from said first tooth attachment capable of defining proper and improper closure of the jaws, said adjusting mechanism further capable of adjusting the amount of offset distance between the maxilla and mandible during proper closure of the jaws, said adjusting mechanism capable of providing incremental and continuous adjustment to the offset distance, an abutment member extending from said adjusting mechanism generally both downwardly and normal to the tooth crown, said abutment member having an abutment surface, said abutment member capable of maintaining proper closure of the jaws, and an inhibiting member extending generally both normal from said abutment member and toward the posterior end of the mouth, said inhibiting member having an inhibitory surface, said inhibiting member capable of deterring improper closure of the jaws; and

b. a placement assembly having a second tooth attachment capable of mounting said placement assembly to a tooth of the other of the maxilla or mandible, a projection element extending from said second tooth attachment generally both parallel to the tooth crown and toward the anterior end of the mouth, and a stop end on said projection element, said stop end having a stoppable surface and a maintainable surface, said stop end extending both upwardly and buccally in a plane generally normal to said projection element;

said adjustment and placement assemblies mounted on respective teeth by said first and second tooth attachments, respectively, so as to place said inhibiting member of said adjustment assembly in alignment with said upwardly and buccally extending stop end of said projection element of said placement assembly, said alignment enabling said inhibitory surface of said inhibiting member to contact said stoppable surface of said stop end during improper closure of the jaws, and said alignment enabling said abutment surface of said abutment member to engage said maintainable surface of said stop end of said projection element during proper closure of the jaws.

11. The intraoral appliance of claim 10, said appliance comprising two sets of complementary adjustment and placement assemblies, one set located on the right side of the mouth, and a second set on the left side of the mouth.

12. The intraoral appliance of claim 11, further comprising a transpalatal element in communication between said first tooth attachments of each said complementary adjustment assemblies.

13. The intraoral appliance of claim 11, further comprising a buccal arm, said buccal arm extending from said first tooth attachment to said adjusting mechanism, said buccal arm capable of positioning said adjusting mechanism, abutment member and inhibiting member from interfering with the proper closure of the jaws.

14. The intraoral appliance of claim 11, wherein said adjusting mechanism comprises two opposing body members, a first and a second body member, said body members separated by a distance, said first body member connected to said first tooth attachment, said second body member attached to said abutment member, said body members in communication with each other through an adjustment screw that, upon rotation, is capable of adjusting the distance separating the opposing body members, in turn altering the posterior-anterior position of said abutment member.

15. The intraoral device of claim 14, wherein said adjustment screw has an actuating ring oriented coaxially with said adjustment screw.

16. The intraoral appliance of claim 14, wherein said adjusting mechanism incorporates an adjustment shielding device capable of selectively shielding adjustment of said appliance from the patient, said adjustment shielding devices enveloping said adjustment screw.

17. The intraoral appliance of claim 14, wherein said adjusting mechanism incorporates an adjustment locking device capable of preventing the accidental adjustment of said appliance.

18. The intraoral device of claim 14, wherein said adjusting mechanism further incorporates an anti-torque device capable of stabilizing said body members upon rotation of said adjusting screw.

19. The intraoral device of claim 18, wherein said anti-torque device comprises a rod extending from one said body member and through a portion of said other body member.

20. The intraoral device of claim 14, wherein said body members incorporate rounded edges and surfaces, said body members presenting cheek shields to the cheeks of the mouth.

21. The intraoral device of claim 10, wherein said abutment member incorporates an extension element extending from said second body member, said extension element capable of positioning said abutment surface anterior said second body member.

22. A method of correcting the bite of a patient with a malocclusion of the maxillary and mandibular jaws, the bite of the patient including a proper and improper closure of the jaws, the malocclusion incorporating an offset distance of one of said jaws relative the other jaw, the maxilla and mandible having teeth with crowns, the mouth having an anterior and posterior end and a left and right side, said method comprising the steps of:

a. mounting an adjustment assembly to a tooth of one of the maxilla or mandible by a first tooth attachment, said adjustment assembly being provided with an adjusting mechanism extending from said first tooth attachment capable of defining proper and improper closure of the jaws, said adjusting mechanism further capable of adjusting the amount of offset distance between the maxilla and mandible during proper closure of the jaws, said adjusting mechanism capable of providing incremental and continuous adjustment to the offset distance, an abutment member extending from said adjusting mechanism, said abutment member having an abutment surface, said abutment member capable of maintaining proper closure of the jaws, and an inhibiting member extending from said abutment member, said inhibiting member having an inhibitory surface, said inhibiting member capable of deterring improper closure of the jaws; and

b. mounting a placement assembly to a tooth of the other of the maxilla or mandible by a second tooth attachment, said placement assembly being provided with a projection element extending from said second tooth attachment, and a stop end on said projection element, said stop end having a stoppable surface and a maintainable surface;

said adjustment and placement assemblies mounted on respective teeth by said first and second tooth attachments, respectively, so as to place said inhibiting member of said adjustment assembly in alignment with said stop end of said projection element of said placement assembly, said alignment enabling said inhibitory surface of said inhibiting member to contact said stoppable surface of said stop end during improper closure of the jaws, and said alignment enabling said abutment surface of said abutment member to engage said maintainable surface of said stop end of said projection element during proper closure of the jaws.

23. The method of correcting the bite of a patient with a malocclusion of the maxillary and mandibular jaws according to claim 22, further including an accommodation step before the bite of the patient is corrected, said accommodation step providing the patient time to become comfortable simply with the weight and placement of said assemblies in the mouth, before the malocclusion is addressed.