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WO2024049984A2 - Support d'aligneur orthodontique et système le comprenant - Google Patents

Support d'aligneur orthodontique et système le comprenant Download PDF

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Publication number
WO2024049984A2
WO2024049984A2 PCT/US2023/031677 US2023031677W WO2024049984A2 WO 2024049984 A2 WO2024049984 A2 WO 2024049984A2 US 2023031677 W US2023031677 W US 2023031677W WO 2024049984 A2 WO2024049984 A2 WO 2024049984A2
Authority
WO
WIPO (PCT)
Prior art keywords
bracket
wire
slot
axis
aligner
Prior art date
Application number
PCT/US2023/031677
Other languages
English (en)
Other versions
WO2024049984A3 (fr
Inventor
James MAH
Kory GRAHL
Original Assignee
The Board Of Regents Of The Nevada System Of Higher Education On Behalf Of The University Of Nevada, Las Vegas
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by The Board Of Regents Of The Nevada System Of Higher Education On Behalf Of The University Of Nevada, Las Vegas filed Critical The Board Of Regents Of The Nevada System Of Higher Education On Behalf Of The University Of Nevada, Las Vegas
Priority to EP23861283.2A priority Critical patent/EP4580544A2/fr
Publication of WO2024049984A2 publication Critical patent/WO2024049984A2/fr
Publication of WO2024049984A3 publication Critical patent/WO2024049984A3/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
    • A61C7/12—Brackets; Arch wires; Combinations thereof; Accessories therefor
    • A61C7/14—Brackets; Fixing brackets to teeth
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
    • A61C7/12—Brackets; Arch wires; Combinations thereof; Accessories therefor
    • A61C7/28—Securing arch wire to bracket

Definitions

  • This disclosure relates to orthodontic aligners.
  • a first type is traditional wired braces. Braces are attached to outer surfaces of one or more teeth, and include brackets that each have a rectangular slot. A wire is received within the rectangular slot. The wire is either round or rectangular. A rectangular wire is used to apply torque to the tooth.
  • a second type of orthodontic aligner uses a progressive, clear removable structure. With these aligners, an orthodontist forms attachments (bumps) by hand on the tooth, and the progressive, clear removable aligner cooperates with the bumps to move the teeth.
  • the attachments for progressive, clear removable aligners are made of a nondurable material that can wear down over time. Moreover, because the attachments are hand- formed, they can be subject to imperfections, such as under- or over-filling receptacles that are used to form the attachments.
  • Brackets for traditional wire braces have a rectangular slot to receive the wire. Due to machine tolerances, these rectangular slots are oversized, leading to “slop” between the wire and the bracket. This slop can hinder performance, such as a reduction of torque on the brace.
  • an orthodontic bracket that is configured to couple to a tooth.
  • the bracket can have a fixation side and an opposed outward side that are spaced along a first axis.
  • the bracket can comprise opposed prongs that are spaced along a vertical axis that is perpendicular to the first axis.
  • the opposed prongs can cooperate to define a slot therebetween.
  • the slot can extend along a horizontal axis that is perpendicular to the first axis and the vertical axis.
  • the slot can define a taper in a first direction from the outward side of the bracket to the fixation side of the bracket.
  • the opposed prongs can each have an outer surface opposite the slot.
  • the bracket can be configured for use with a wire or for an aligner.
  • a system can comprise a bracket as disclosed herein and a wire that is configured to be coupled thereto.
  • a system can comprise a bracket as disclosed herein and an aligner that is configured to be coupled thereto.
  • FIG. 1 shows a tooth having an exemplary bracket coupled thereto.
  • FIG. 2 shows a side view of the bracket of FIG. 1.
  • FIG. 3 shows a side view of the bracket of FIG. 1 , with a pair of round wires received within a slot of the bracket.
  • FIG. 4 shows a side view of the bracket of FIG. 1, with a trapezoidal wire received within the slot.
  • FIG. 5 shows a side view of the bracket of FIG. 1, with an aligner coupled thereto.
  • FIG. 6 shows an exemplary bracket as disclosed herein.
  • FIG. 7 shows a sectional view of the exemplary bracket of FIG. 6, taken in the plane
  • FIG. 8 shows a sectional view of the exemplary bracket of FIG. 6, taken in the plane
  • FIG. 9 shows a sectional view of the exemplary bracket of FIG. 6, taken in the plane
  • FIG. 10 shows an exemplary bracket as disclosed herein.
  • FIG. 11 shows a sectional view of the exemplary bracket of FIG. 10, taken in the plane 11-11 of FIG. 10.
  • FIG. 12 shows a sectional view of the exemplary bracket of FIG. 10, taken in the plane 12-12 of FIG. 10.
  • FIG. 13 shows a sectional view of the exemplary bracket of FIG. 10, taken in the plane 13-13 of FIG. 10.
  • bracket can refer to one or more of such brackets.
  • values are approximated by use of the antecedent “about,” it is contemplated that values within up to 15%, up to 10%, up to 5%, or up to 1% (above or below) of the particularly stated value can be included within the scope of those aspects.
  • values are approximated by use of the terms “approximately,” “substantially,” or “generally,” it is contemplated that values within up to 15%, up to 10%, up to 5%, or up to 1% (above or below) of the particular value can be included within the scope of those aspects.
  • substantially or “generally” can refer to a degree of deviation that is sufficiently small so as to not measurably detract from the identified property or circumstance, and the exact degree of deviation allowable may in some cases depend on the specific context.
  • a bracket 10 that is configured to couple to a tooth 2.
  • the bracket 10 can have a fixation side 12 and an opposed outward side 14 that are spaced along a first axis 4.
  • the fixation side 12 can optionally have a surface with a contour that is complementary or substantially complementary to a tooth.
  • the fixation side 12 can have a concave surface. As illustrated in FIGS. 8 and 9, in some aspects, the fixation side 12 can be concave in horizontal planes and in vertical planes. For example, a cross section of the fixation side can have a radius of from about .75 to about 1 inch (e.g., about 0.915 inches) in a vertical plane, and a cross section of the fixation side can have a radius of from about 0.4 to about .75 inch (e.g., about 0.55 inches) in a horizontal plane.
  • the fixation side 12 can be textured (e.g., having bumps, ridges, or grooves 60, as shown in FIG. 8) to provide spaces for adhesive to bond the bracket 10 to the tooth 2.
  • the fixation side 12 can be customized for a particular tooth of a particular patient based on, for example, a mold or intra-oral imaging.
  • the bracket 10 can comprise opposed prongs 20 that are spaced along a vertical axis 6 that is perpendicular to the first axis 4.
  • the opposed prongs 20 can cooperate to define a slot 30 therebetween.
  • the slot 30 can extend along a horizontal axis 8 that is perpendicular to the first axis 4 and the vertical axis 6.
  • the brackets 10 can be coupled to the tooth in any orientation, so these axes need not be horizontal and vertical.
  • the slot 30 can define a taper in a first direction 9 from the outward side 14 of the bracket 10 to the fixation side 12 of the bracket.
  • the opposed prongs 20 can each have an outer surface 22 opposite the slot 30.
  • the taper of the groove 30 can have an angle of greater than 5 degrees. In further aspects, the taper of the groove 30 can have an angle of greater than 10 degrees. In some optional aspects, the taper of the groove 30 can have an angle from about 5 degrees to about 15 degrees. In some aspects, the taper can have an angle of about 10 degrees. In still further aspects, the taper can have an angle of up to 5 degrees to 65 degrees, or from 30 degrees to 50 degrees, or about 45 degrees.
  • inner surfaces 26 of the opposed prongs 20 can optionally be planar, and the inner surfaces can converge at a 10 degree angle along the first axis 4. In other aspects, the inner surfaces 26 can be concave (toward the slot 30) or convex (toward the slot).
  • the slot 30 can have a depth along the first axis 4.
  • the taper can be continuous along at least 70% of an entire depth of the slot 30, at least 80% of an entire depth of the slot, at least 90% of the entire depth of the slot, or all or substantially all of the entire depth of the slot.
  • the depth, d, of the slot 30 can be from about 0.025 inches to about 0.08 inches, or from 0.03 inches to about 0.06 inches, or about 0.054 inches.
  • the slot can have a depth from about 0.025 inches to about 0.045 inches, or about 0.035 inches.
  • the slot 30 can have a minimum width, w, along the vertical axis 6 of less than 0.016 inches, or from about 0.01 inches to about 0.02 inches, or from about 0.012 inches to about 0.016 inches, or about 0.014 inches, or about 0.018 inches.
  • the slot 30 can have a minimum width, w, from about 0.014 inches to about 0.018 inches. In exemplary aspects, the slot 30 can have a maximum width from about 0.040 inches to about 0.060 inches. In still further aspects, the slot 30 can have any combination of a minimum width of 0.014 inches and a maximum width of 0.040 inches, 0.050 inches, or 0.060 inches, or a minimum width of 0.018 inches and a maximum width of 0.040 inches, 0.050 inches, or 0.060 inches. In other aspects, the slot can have a maximum width and a maximum width in between any of the above combinations. Optionally, in these aspects, the slot can have a depth of about 0.035 inches.
  • the bracket 10 can have a width along the horizontal axis 8.
  • the prongs 20 can extend an entire length of the bracket.
  • the bracket can have exactly two prongs (an upper prong and a lower prong).
  • the bracket 10 can comprise multiple prongs above the slot and/or multiple prongs below the slot (optionally, an equal number of prongs above the slot and below the slot).
  • the bracket can comprise two upper prongs and two lower prongs.
  • the brackets can comprise three upper prongs and three lower prongs.
  • the bracket 10 can be symmetric about a horizontal plane 40 that bisects the bracket and is parallel to or contains the horizontal axis 8 and the first axis 4.
  • the bracket 10 can be symmetric about a vertical plane 42 that bisects the bracket and is parallel to or contains the vertical axis 6 and the first axis 4.
  • each prong 20 can define a groove 24 that is configured to receive a portion of a band (e.g., an elastic band or metal tie).
  • a band e.g., an elastic band or metal tie
  • the band can couple a wire to the bracket 10.
  • the grooves 24 can be arcuate in planes perpendicular to the horizontal axis 8.
  • the grooves 24 can have surfaces that are complementary to conventional elastic bands for braces having round cross sections.
  • the outer surfaces 22 of the opposed prongs 20 can converge in the first direction 9.
  • at least portions of the outer surfaces can be planar, and planes that include the planar portions of the outer surfaces can intersect.
  • the outer surfaces of the opposed prongs converge in the first direction at an angle from about 1 degree to about 15 degrees, or from about 2 degrees to about 15 degrees, or from about 2 degrees to about 10 degrees, or from about 4 degrees to about 10 degrees, or from about 2 degrees to about 4 degrees, or from about 10 degrees to about 15 degrees, or about 4 degrees.
  • planes that include the planar portions of the outer surfaces can intersect at an angle from about 2 degrees to about 10 degrees, or at least 3 degrees, or about 4 degrees.
  • planes that are tangential to the outer surfaces 22 can converge in the first direction 9. Said planes can converge in the first direction at an angle from about 2 degrees to about 10 degrees, or about 4 degrees.
  • the planes that are tangential to the outer surfaces can each intersect the horizontal plane 40 at respective angles from 1 degree to 5 degrees, or about 2 degrees.
  • the convergence of the opposed prongs 20 can permit an aligner 150 to couple to the bracket 10, as further described herein.
  • the bracket 10 can comprise ceramic material. Accordingly, in some aspects, the bracket 10 can be white or off-white. In some aspects, the bracket 10 can be tooth-colored. In some aspects, the bracket can be made to have a color that matches a tooth color of a particular user. In some optional aspects, the bracket 10 can be 3D printed.
  • the brackets 10 can, thus be precision-made, unlike hand-made bump brackets that are conventionally used with conventional progressive, clear removable aligners.
  • a system 100 can comprise at least one bracket 10 and a wire 110 configured to be received within the slot 30.
  • the wire 110 can have a dimension of elongation. As illustrated in FIG. 4, in some optional aspects, the wire 110 can be trapezoidal in cross sections perpendicular to the dimension of elongation.
  • the wire 110 can optionally have a profile (e.g., a cross sectional profile) that is complementary to the slot 30.
  • the wire can be configured to be complementarily received within the slot 30 of the bracket 10.
  • the wire 110 can be circular in cross sections perpendicular to the dimension of elongation.
  • the wire 110 can be configured to be wedged within the slot. When the wire 110 is received within the slot, the wire can be wedged therein. Wedging of the wire 110 within the slot can permit controlled binding between the wire and bracket. In this way, relative movement between the wire and the bracket can be inhibited. For example, the bracket can be inhibited from sliding along the wire. This can be advantageous for controlling and preventing sliding of the wire within the slot depending on the forces applied to the tooth by the wire. Prevention of sliding of the wire within the slot can be advantageous to avoid unintended movement of teeth.
  • the wire 110 can be a first wire, and the system 10 can further comprise a second wire 120 that is configured to be received within the slot.
  • the first and second wires can have circular cross sections perpendicular to their dimension of elongation.
  • the first wire 110 can have a first cross sectional dimension (e.g., diameter).
  • second wire 120 can have a second cross sectional dimension (e.g., diameter) that is greater than the first cross sectional dimension.
  • the bracket 10 can be permitted to move relative to (e.g., along the dimension of elongation of) the second wire 120.
  • at least a portion of the second wire 120 can extend out of the slot —that is, the entirety of the second wire 120 can be received within the slot, but if the sizes of the first and/or second wires are too large, it is contemplated that a portion of the second wire 120 can extend outward of the slot.
  • the first and second wires 110, 120 can have circular cross sections, and the first and second cross sectional dimensions can be diameters.
  • the first wire can have a diameter of 0.016 inches
  • the second wire can have a diameter of 0.018 inches.
  • the first and second wires 110, 120 can have trapezoidal, rectangular, or square cross sections, and the first and second dimensions can be respective diagonals.
  • the wire 110 can be configured to apply torque to the bracket.
  • the wire 110 can apply forces to the inner surfaces 26 of the prongs 20 to apply a torque about an axis that is parallel to the horizontal axis 8.
  • first and second wires 110, 120 can be welded or otherwise rigidly coupled to one another. This can be done, for example, to provide added rigidity to the wires.
  • first or second wires 110, 120 can be twisted or otherwise bent and coupled (e.g., welded) together in a twisted or bent configuration.
  • wire 120 can be twisted along the vertical axis in FIG. 3 and held in a twisted position, and the first wire 110 can be welded to the second wire 120 in a first circumferential position (e.g., a 12 O’clock position).
  • the second wire 120 Upon release of twist from the second wire 120, the second wire 120 can return to the pre-twisted configuration (e.g., to a 9 O’clock position), thereby carrying the wire 110, via weldment, to a new position.
  • the engagement of the coupled first and second wires 110, 120 into the slot can impart tooth movement forces such as torque.
  • a system 200 can comprise one or more brackets 10 and an aligner 150 that is configured to be coupled to the one or more brackets.
  • the aligner 150 can be clear (e.g., transparent).
  • the aligner 150 can be thermo formed to each bracket 10.
  • the aligner 150 can be heated to form around the outer surfaces 22 of the prongs 20 of the bracket 10. In this way, a tight fit between the aligner 150 and the bracket 10 can be formed.
  • the aligner 150 can be 3D printed or otherwise formed to complementarily receive and form a tight fit with each bracket 10. The spacing between the aligner and the bracket 10 in FIG. 5 is provided to show the geometry of each component. In use, it is contemplated that the aligner 150 and bracket are in contact.
  • the aligner 150 can comprise inner surfaces 152 that are configured to be received within the slot.
  • the inner surfaces 152 of the aligner 150 that are configured to be received within the slot 30 can be configured to apply a torque to the bracket 10.
  • the inner surfaces 150 can bias against the inner surfaces 26 of the prongs 20 to apply a torque to the bracket and, thus, the tooth.
  • the aligner 150 can comprise surfaces 154 that bias against the outer surfaces 22 of the opposed prongs 20 to couple the aligner 150 to the bracket.
  • a method can include positioning an aligner on a bracket 10 as disclosed herein.
  • a method can include positioning a wire 110 within a slot 30 of a bracket 10.
  • the method can further comprise securing the wire 110 within the slot 30 with a band, such as, for example, an elastic band or a metal tie.
  • brackets can be used interchangeably with either a wire 110 or an aligner 150.
  • a method can comprise removing a wire 110 from the slot 30 of the bracket prior to positioning the aligner on the bracket.
  • a method can comprise removing an aligner 150 from the bracket 10 prior to positioning the wire 110 within the slot 30.
  • brackets 10 and systems disclosed herein provide various advantages over orthodontic aligners as conventionally used.
  • the brackets 10 can be used interchangeably with both clear aligners and wires —that is, the same brackets 10 are compatible with both clear aligners and wires.
  • the user can receive the advantages of wires (e.g., more effective alignment) as well as the advantages of clear aligners (e.g., being less visible).
  • the user can, for example, use the brackets with an aligner for a wedding or other event and use the brackets with a wire, or plurality of wires, when the aesthetics are deemed less important.
  • brackets 10 can work advantageously with an aligner. For example, receipt of the inner surfaces 152 of the aligner within the slot can provide torque that is generally unavailable with conventional braces.
  • the taper of the slot 30 can provide a good fit between the wire and the bracket 10.
  • the wire can move inwardly into the slot to provide a tight fit with the wire, thereby reducing slop and optimizing ability to provide torque.
  • a trapezoidal wire can be complementarily received within the tapered slot to provide advantageous torque with minimal slop.
  • the taper of the slot can permit binding between the wire and bracket may be controlled. This can contrast to conventional braces that do not permit good binding.
  • the disclosed brackets can be provided as components of a kit, which can also include an aligner and/or at least one wire (optionally, a plurality of wires) as further disclosed herein.
  • a kit can comprise a plurality of brackets and an aligner, which can optionally be provided together in packaging.
  • a kit can comprise a plurality of brackets and at least one wire, which can optionally be provided together in packaging.
  • the slot can extend parallel to the first axis 4.
  • the slot can extend at an acute angle relative to the first axis 4.
  • a plane 90 that bisects the inner surfaces 26 can intersect the first axis 4 at an acute angle.
  • the acute angle can define a torque angle a.
  • the torque angle a can be from about 0 to about 45 degrees, or from about 5 to about 30 degrees, of from about 10 to about 25 degrees, or from about 15 to about 20 degrees.
  • the bracket 10 can comprise an orientation indicator.
  • the bracket 10 can have a frustoconical recess that indicates rotational orientation of the bracket.
  • the bracket 10 can have a relief between the left and right sides on the top and bottom of the bracket to permit receipt of an elastic removal instrument for lifting the elastic band off the bracket.
  • the bracket 10 can be a full bracket (FIG. 6).
  • the full bracket can have a width along the horizontal axis 8 of about 0.125 inches and a height of about 0.154 inches along the vertical axis 6.
  • the bracket 10 can be a half-bracket (FIG. 10).
  • the half bracket can have a width along the horizontal axis 8 of about 0.063 inches and a height of about 0.154 inches along the vertical axis 6.
  • Use of a full bracket or a half bracket can be determined by the biomechanics of tooth movement.
  • a full bracket can be advantageous to correct a rotation by providing a mechanical advantage due to its width.
  • a smaller half bracket can be sufficient and can be preferable for aesthetic purposes.
  • the bracket 10 can have spacing SI between the fixation side 12 and the slot 30 of about 0.038 inches. In some optional aspects, the bracket 10 can have spacing S2 between the groove 24 and the slot 30 of about 0.042 inches. In some optional aspects, the bracket 10 can have spacing S3 between the fixation side 12 and the opposite side of the bracket of about 0.069 inches.
  • the bracket 10 can be symmetric about a plane that bisects the bracket and is parallel to the first and vertical axes 4, 6. In other aspects, the bracket 10 can be asymmetric about the plane that bisects the bracket and is parallel to the first and vertical axes 4, 6.
  • the outer surfaces 22 (e.g., upper and lower surfaces) of the bracket 10 can both slope upwardly from left-to-right, or both slope upwardly from right-to-left along the horizontal axis 8.
  • a bracket having outer surfaces 22 that both slope upwardly from left-to-right (looking in the first direction 9) can advantageously be used on teeth on the left side of the patient, and bracket having outer surfaces 22 that both slope upwardly from right-to-left can advantageously be used on teeth on the left side of the patient.
  • outer surfaces of the bracket can be rotationally symmetric about an axis parallel to the first axis 4.
  • the left-to-right or right-to-left slope can form an angle, 0, with the horizontal axis 4 of between 0 and 15 degrees, or between 0 and 10 degrees, or about 4 degrees.
  • the slot 30 can extend along an axis 62 that forms the angle 0 with the first axis 4.
  • a plurality of exemplary brackets with different slot dimensions were tested to characterize retentive force between each bracket and an aligner 152 (FIG. 5).
  • the slot dimensions tested were a minimum width of 0.014 inches combined with maximum widths of 0.040 inches, 0.050 inches, and 0.060 inches; and a minimum width of 0.018 inches combined with maximum widths of 0.040 inches, 0.050 inches.
  • the 014 base group vs. 2mm attachment displayed clinical significance in the 040 and 050 top of slot but not in the 060 group.
  • the 018 base group vs. 2mm attachment group also displayed statistical significance in the 040 and 050 top of slot groups, but not the 060 top of slot group.
  • top of slot groups were compared against base of slot, and statistical significance was seen in the 040, 050, and 060 top of slot group. Further, there was statistical significance demonstrated between the 2mm retention attachment and the no attachment groups.
  • Table 2 (below) includes a summary of the above-described T-Tests.
  • a bracket that is configured to couple to a tooth, the bracket having a fixation side and an opposed outward side that are spaced along a first axis, the bracket comprising: opposed prongs that are spaced along a vertical axis that is perpendicular to the first axis, wherein the opposed prongs cooperate to define a slot therebetween, wherein the slot extends along a horizontal axis that is perpendicular to the first axis and the vertical axis, wherein the slot defines a taper in a first direction from the outward side of the bracket to the fixation side of the bracket, wherein the opposed prongs each have an outer surface opposite the slot.
  • Aspect 2 The bracket of aspect 1, wherein the outer surface of each prong defines a groove that is configured to receive a portion of an elastic band.
  • Aspect 3 The bracket of aspect 2, wherein the groove is arcuate in planes perpendicular to the horizontal axis.
  • Aspect 4 The bracket of any one of the preceding aspects, wherein the outer surfaces of the opposed prongs converge in the first direction.
  • Aspect 5 The bracket of aspect 4, wherein the outer surfaces of the opposed prongs converge in the first direction at an angle from about 2 degrees to about 10 degrees.
  • Aspect 6 The bracket of aspect 5, wherein the outer surfaces of the opposed prongs converge in the first direction at an angle of about 4 degrees.
  • Aspect 7 The bracket of any one of the preceding aspects, wherein the bracket is symmetric about a horizontal plane that bisects the bracket and is parallel to or contains the horizontal axis and the first axis.
  • Aspect 8 The bracket of any one of aspects 1 -6, wherein the outer surfaces of the bracket of the bracket both slope upwardly or both slope downwardly moving along right-to- left along a horizontal axis that is perpendicular to the first axis and the vertical axis.
  • Aspect 9 The bracket of any one of the preceding aspects, wherein the bracket is symmetric about a vertical plane that bisects the bracket and is parallel to or contains the vertical axis and the first axis.
  • Aspect 10 The bracket of any one of the preceding aspects, wherein the groove is symmetric about a vertical plane that bisects the bracket and is parallel to or contains the vertical axis and the first axis.
  • Aspect 11 The bracket of any one of aspects 1-8, wherein the slot is defined between opposed inner surfaces, wherein a plane bisects the inner surfaces, wherein said plane intersects the first axis at an acute angle.
  • Aspect 12 The bracket of aspect 11, wherein the plane intersects the first axis at an angle from about 10 to about 25 degrees.
  • Aspect 13 The bracket of any one of the preceding aspects, wherein the taper has an angle from about 5 degrees to about 15 degrees.
  • Aspect 14 The bracket of aspect 13, wherein the taper has an angle of about 10 degrees.
  • Aspect 15 The bracket of any one of the preceding aspects, wherein the slot has a depth along the first axis, wherein the taper is continuous along at least 80% of an entire depth of the slot.
  • Aspect 16 The bracket of any one of the preceding aspects, wherein the bracket comprises ceramic materials.
  • Aspect 17 The bracket of any one of the preceding aspects, wherein the bracket is 3D printed.
  • Aspect 18 A system comprising: at least one bracket as in any one of the preceding aspects; and a wire configured to be received within the slot.
  • Aspect 19 The system of aspect 18, wherein the wire has a dimension of elongation, wherein the wire is trapezoidal in cross sections perpendicular to the dimension of elongation.
  • Aspect 20 The system of aspect 19, wherein the wire has a profile that is configured to be complementarily received within the slot of the bracket.
  • Aspect 21 The system of aspect 18, wherein the wire has a dimension of elongation, wherein the wire is circular in cross sections perpendicular to the dimension of elongation.
  • Aspect 22 The system of aspect 21, wherein the wire is configured to be wedged within the slot to provide controlled binding between the wire and the bracket.
  • Aspect 23 The system of any one of aspects 18-22, wherein the wire is a first wire, and wherein the system further comprises a second wire that is configured to be received within the slot.
  • Aspect 24 The system of aspect 23, wherein the first wire has a first cross sectional dimension, wherein the second wire has a second cross sectional dimension that is greater than the first cross sectional dimension, wherein the first and second wires are received within the slot, wherein the first wire is positioned inwardly of the second wire, and wherein the first wire inhibits the second wire from wedging within the slot.
  • Aspect 25 The system of aspect 24, wherein the first and second cross sectional dimensions are diameters.
  • Aspect 26 The system of any one of aspects 18-25, wherein the wire is configured to apply torque to the bracket.
  • Aspect 27 A system comprising: at least one bracket as in any one of aspects 1-17; and an aligner that is configured to be coupled to the at least one bracket.
  • Aspect 28 The system of aspect 27, wherein the aligner is thermo formed to the at least one bracket.
  • Aspect 29 The system of aspect 27, wherein the aligner is 3D printed to complementarily receive the bracket.
  • Aspect 30 The system of any one of aspects 27-29, wherein the aligner comprises inner surfaces that are configured to be received within the slot of a bracket of the at least one bracket.
  • Aspect 31 The system of aspect 30, wherein the inner surfaces of the aligner that are configured to be received within the slot are configured to apply a torque to the bracket of the at least one bracket.
  • Aspect 32 The system of any one of aspects 27-31, wherein the outer surfaces of the opposed prongs of the at least one bracket converge in the first direction, and wherein the aligner comprises surfaces that bias against the outer surfaces of the opposed prongs of the at least one bracket to couple the aligner to the at least one bracket.
  • Aspect 33 The system of any one of aspects 27-32, wherein the at least one bracket comprises a plurality of brackets.
  • Aspect 34 A method comprising: positioning an aligner on a bracket as in any one of aspects 1-17.
  • Aspect 35 The method of aspect 34, further comprising: removing a wire from the slot of the bracket prior to positioning the aligner on the bracket.
  • Aspect 36 A method comprising: positioning a wire within a slot of a bracket as in any one of aspects 1-17; and securing the wire within the slot with an elastic band.
  • Aspect 37 The method of aspect 36, further comprising: removing an aligner from the bracket prior to positioning the wire within the slot.
  • Aspect 38 A kit comprising: at least one bracket as in any one of aspects 1-17; and an aligner that is configured to be coupled to the at least one bracket.
  • Aspect 39 The kit of aspect 38, further comprising at least one wire.
  • a kit comprising: at least one bracket as in any one of aspects 1-17; and a wire configured to be received within the slot of a bracket of the at least one bracket.

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  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

Un support pour une utilisation orthodontique peut être configuré pour se coupler à une dent. Le support peut avoir un côté de fixation et un côté extérieur opposé qui sont espacés le long d'un premier axe. Le support peut comprendre des broches opposées qui sont espacées le long d'un axe vertical qui est perpendiculaire au premier axe. Les broches opposées peuvent coopérer pour définir une fente entre elles. La fente peut s'étendre le long d'un axe horizontal qui est perpendiculaire au premier axe et à l'axe vertical. La fente peut définir un cône dans une première direction depuis le côté extérieur du support jusqu'au côté de fixation du support. Les broches opposées peuvent chacune avoir une surface externe opposée à la fente. Le support peut être configuré pour être utilisé avec un fil ou pour un aligneur.
PCT/US2023/031677 2022-08-31 2023-08-31 Support d'aligneur orthodontique et système le comprenant WO2024049984A2 (fr)

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EP23861283.2A EP4580544A2 (fr) 2022-08-31 2023-08-31 Support d'aligneur orthodontique et système le comprenant

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US202263402680P 2022-08-31 2022-08-31
US63/402,680 2022-08-31

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WO2024049984A2 true WO2024049984A2 (fr) 2024-03-07
WO2024049984A3 WO2024049984A3 (fr) 2024-05-23

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Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5791897A (en) * 1992-02-26 1998-08-11 Wildman; Alexander J. Multiwire arch system with improved interarch connector
EP1226791A1 (fr) * 2001-01-26 2002-07-31 Schaulin AG Appareil orthodontique
US7264468B1 (en) * 2004-12-30 2007-09-04 Kesling Peter C Edgewise orthodontic bracket for capturing lost torque
EP2015699B1 (fr) * 2006-05-04 2014-11-05 Orapix Co., Ltd. Gabarit de positionnement d' une attache et système avec ledit gabarit
KR20120002268A (ko) * 2010-06-30 2012-01-05 김피터에이치 치아교정용 브라켓
KR101297671B1 (ko) * 2011-11-14 2013-08-21 휴비트 주식회사 치열교정용 브래킷
EP3573567B1 (fr) * 2017-01-27 2024-03-06 The University of North Carolina at Chapel Hill Bague orthodontique
WO2021170629A1 (fr) * 2020-02-28 2021-09-02 Hirsch Dynamics Holding Ag Boîtier orthodontique autoligaturant

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EP4580544A2 (fr) 2025-07-09
WO2024049984A3 (fr) 2024-05-23

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