Orthodontic device

Abstract

The invention relates to an orthodontic device (10a) comprising: at least one distal component (12a), which comprises at least one coupling element (14a) and at least one first guide element (16a), in particular a sliding bearing, and has a coupling point to a tooth (18a) via the coupling element (14a); at least one mesial component (20a), which comprises at least one second guide element (22a) and at least one holding element (24a) and has a coupling point to a further tooth (26a) via the holding element (24a); and at least one force-exerting element (28a), wherein the first guide element (16a) is slidingly connected to the second guide element (22a). It is proposed that the main axis of extent (30a) of the force-exerting element (16a) is spaced from the main axis of extent (32a) of the second guide element (22a).

Description

[0001] 04.09.2025

[0002] Orthodontic appliance

[0003] State of the art

[0004] The invention relates to an orthodontic device according to the preamble of claim 1.

[0005] An orthodontic device has already been proposed, comprising at least one distal component, with at least one coupling element, with at least one first guide element, in particular a sliding bearing, which has a coupling point with a tooth via the coupling element, at least one mesial component, with at least one second guide element and with at least one retention element, which has a coupling point with another tooth via the retention element, and at least one force-exerting element, wherein the first guide element is slidably connected to the second guide element.

[0006] Furthermore, US2 0080020339 A1 discloses, in particular, an orthodontic device for moving a molar along the dental arch. Specifically, the orthodontic device comprises an elongated guide element, at one end of which a first fastening element is attached to secure the guide element to the dental arch; a first tube that is slidable on the guide element, wherein the first tube has a first locking device for optionally securing the first tube to the guide element; a second tube that is guided telescopically on the first tube, wherein the second tube has a second locking element for attachment to the molar (M); and a spring acting between the first and the second tube that pushes the second tube in a direction away from the first fastening device.

[0007] With orthodontic aligners disclosed in the prior art, some tooth movements can only be achieved inadequately. This includes, in particular, the so-called bodily or translational tooth movement, in which a tooth or group of teeth is moved parallel to the surface. To achieve such a tooth movement without tipping, the tooth or group of teeth must be subjected not only to a force F, but also to a torque M counteracting the tipping, the so-called righting torque. The ratio of torque to force (M / F ratio) is, depending on the anatomical conditions, between M / F = 8 / 1 mm and M / F = 12 mm.

[0008] The invention therefore comprises a device that is used in combination with so-called aligners and whose function is to reduce or eliminate the limitations of the aligners described above. The object of the invention is, in particular, to provide a generic device with improved properties with regard to variability, space saving, and comfort. This object is achieved according to the invention by the features of claim 1, while advantageous embodiments and further developments of the invention can be found in the dependent claims.

[0009] Advantages of the invention

[0010] The invention is based on an orthodontic device comprising at least one distal component, with at least one coupling element, with at least one first guide element, in particular a sliding bearing, which has a coupling point with a tooth via the coupling element, at least one mesial component, with at least one second guide element and with at least one retaining element, which has a coupling point with a further tooth via the retaining element, and at least one force-exerting element, wherein the first guide element is slidably connected to the second guide element.

[0011] It is proposed that the principal extension axis of the force-exerting element be arranged at a distance from the principal extension axis of the second guide element.

[0012] In this context, an "orthodontic appliance" is understood to mean, in particular, a device designed to move teeth, especially without tipping or rotation. The orthodontic appliance is specifically intended to move teeth within the dental arch without tipping or rotation and, for example, to actively close gaps between teeth, particularly in connection with aligner therapy (EE 16209 WO). Preferably, the movement of the teeth occurs along the dental arch. Alternatively, passive gap closure is also conceivable, in which the force applied to the teeth is generated by the aligner. The orthodontic appliance can be supported by other teeth or by the jaw. The orthodontic appliance is specifically designed to shift a tooth by applying a force.Preferably, the orthodontic appliance is used within the oral cavity. Preferably, the orthodontic appliance is arranged on the teeth of the upper or lower jaw. Preferably, the orthodontic appliance is firmly connected to the teeth of the upper or lower jaw. Alternatively, a detachable connection of the orthodontic appliance to the teeth of the upper or lower jaw is also conceivable. Preferably, the orthodontic appliance is arranged in a posterior region. Alternatively, however, an arrangement of the orthodontic appliance in the anterior region would also be conceivable. Preferably, the orthodontic appliance connects at least one tooth, preferably movably, to at least one other tooth.The term "posterior region" refers specifically to the area of ​​the premolars and all molars of the upper and lower jaw. The term "anterior region" refers specifically to the area of ​​the incisors and canines of the upper and lower jaw.

[0013] In this context, a "distal component" is understood to mean, in particular, a component of the orthodontic appliance designed to be positioned in a posterior region of the dental arch. Preferably, the distal component comprises a first guide element. In this context, a "first guide element" is understood to mean, in particular, a component designed to be displaceable along a defined path. Preferably, the first guide element is designed to slide on a second guide element. Preferably, the first guide element is designed as a sliding bearing. Preferably, the first guide element is designed as, in particular, an elongated cylinder or cuboid. Alternatively, other shapes that appear suitable to a person skilled in the art are also conceivable. Preferably, the first guide element can be positioned on a buccal and / or oral side of the dental arch. EE 16209 WO

[0014] Preferably, the main axis of extension of the first guide element extends along the shape of the dental arch. Preferably, the first guide element has a through-hole. For example, the first guide element is preferably designed as a tube. Preferably, the distal component has a coupling element. In this context, a "coupling element" is understood to mean, in particular, a component of the distal component that is provided for a coupling point with a first tooth. Preferably, the first guide element is rigidly connected to the coupling element. Preferably, the first guide element is formed integrally, in particular in one piece, with the coupling element. Preferably, the coupling element has a coupling point with a first tooth. Preferably, the coupling element is connected to at least one tooth to be moved in a force-fit and torque-fit manner.Preferably, the coupling point is designed as a detachable connection. More preferably, the coupling point is designed as an adhesive connection. Alternatively, other permanent connections that would appear suitable to a person skilled in the art are also conceivable. In particular, it is conceivable that the coupling element has at least one connecting element designed to engage positively in the corresponding recesses on the inner surface of an aligner in order to achieve advantageous properties with regard to retention and force and torque transmission between the aligner and the orthodontic appliance. Preferably, the connecting element is formed integrally, particularly in one piece, with the coupling element. Preferably, the connecting element is designed as a protrusion projecting from the surface of the coupling element. Preferably, the connecting element is cuboid in shape.Alternatively, all other forms that would appear sensible to an expert are also conceivable.

[0015] In this context, a "mesial component" is understood to mean, in particular, a component of the orthodontic appliance designed to be positioned in an anterior region of the dental arch. Preferably, the mesial component is located near the anterior teeth. Preferably, the mesial component includes a second guiding element. In this context, a "second guiding element" is understood to mean, in particular, an elongated component which, in its deployed state, has a longitudinal extent that is many times greater than its vertical extent (EE 16209 WO) and transverse extent. Preferably, the second guiding element can be positioned on a buccal and / or oral side of the dental arch. Preferably, the main axis of extension of the second guiding element extends along the contour of the dental arch.Preferably, the second guide element is designed to define a path. Preferably, the second guide element is designed to define a path for a first guide element. Preferably, a first guide element slides on the second guide element. Preferably, the second guide element is designed as a guide rib. Preferably, the second guide element has a curvature along its principal direction of extension. A "principal direction of extension" is understood to mean, in particular, a direction that runs parallel to the longest edge of the smallest geometric cuboid that just completely encloses the object. Preferably, the second guide element is designed along the tooth arc. Alternatively, a second guide element in a straight embodiment is also conceivable.Preferably, the second guide element has a polygonal cross-section perpendicular to its main direction of extension. A round cross-section perpendicular to the main direction of extension is also conceivable. Alternatively, other cross-sectional shapes of the second guide element that appear useful to a person skilled in the art are also conceivable. Preferably, the cross-section perpendicular to the main direction of extension is round or oval. Preferably, the second guide element is rigid. Preferably, the mesial component has a retaining element. In this context, a "retaining element" is understood to mean, in particular, a component of the mesial component that is provided for a coupling point with another tooth. Preferably, the second guide element is rigidly connected to the retaining element. Preferably, the second guide element is formed integrally, particularly in one piece, with the retaining element.Preferably, the retaining element has a coupling point with another tooth. Preferably, the retaining element is connected to at least one other movable tooth in a force-fit and torque-fit manner. Preferably, the coupling point is designed as a detachable connection. Preferably, the coupling point is designed as an adhesive connection. Furthermore, a removable connection is also conceivable as a coupling point. Alternatively, other insoluble connections that appear sensible to a person skilled in the art are also conceivable. Preferably, this is EE 16209 WO.

[0016] The retaining element is designed in particular as a retaining hook. Alternatively, other forms of the retaining element that would appear sensible to a specialist are also conceivable.

[0017] Preferably, the first guide element is slidably connected to the second guide element. Preferably, the first and second guide elements are designed to correspond. Preferably, the second guide element has a coating on its inner surface that reduces friction between the first and second guide elements. Various connections between the first and second guide elements that would appear useful to a person skilled in the art are conceivable. Alternatively, it is conceivable that the distal component forms the second guide element and the mesial component forms the first guide element.

[0018] Preferably, the principal axis of extension of the force-exerting element is arranged at a distance from the principal axis of extension of the second guide element. Preferably, the principal axis of extension of the force-exerting element is aligned at least substantially parallel to a principal axis of extension of the guide element. Preferably, the force-exerting element is arranged below the second guide element. Alternatively, other arrangements of the force-exerting element that appear sensible to a person skilled in the art are also conceivable. In this context, a perpendicular direction is understood to mean a direction parallel to the principal plane of extension of the second guide element.A "principal extension plane" of a component is understood to be, in particular, a plane that is parallel to a major face of the smallest imaginary cuboid that just completely encloses the component, and in particular passes through the center of the cuboid. A "force-exerting element" in this context is understood to be, in particular, an element that generates a force between at least two bodies. Preferably, the force-exerting element generates a directed force along its principal extension axis. "Substantially parallel" is understood here to mean, in particular, an orientation of a direction relative to a reference direction, especially in a plane, wherein the direction has a deviation from the reference direction of, in particular, less than 8°, advantageously less than 5°, and most advantageously less than 2°.Furthermore, the principal axis of extension of the force-exerting element is arranged, in particular, at an angle to a principal axis of extension of the guide element (EE 16209 WO). In this context, "spaced apart" is understood to mean, in particular, a spatial distance between two points. Preferably, the distance between the principal axis of extension of the force-exerting element and the principal axis of extension of the guide element is at least 7 mm, preferably a maximum of 5 mm, and particularly preferably at least 3 mm. Alternatively, the distance between the principal axis of extension of the force-exerting element and the principal axis of extension of the guide element is greater than half the diameter perpendicular to the principal direction of extension of the force-exerting element. Other distances that would appear reasonable to a person skilled in the art are also conceivable.The term "principal extension axis" of an object is understood to mean, in particular, an imaginary straight line which is congruent with an axis of rotation / central axis and runs in a direction parallel to the longest edge of the smallest geometric cuboid that just completely encloses the object, and to the cuboid itself.

[0019] The inventive design of the orthodontic device provides, in particular, advantageous comfort and variability. Specifically, it provides a particularly advantageous orthodontic device. This allows for a particularly compact orthodontic device. In particular, it allows for easy replacement of the force-exerting element. This allows for particularly advantageous maintenance variability.

[0020] Furthermore, it is proposed that the force-applying element displaces the first guide element relative to the second guide element. Preferably, the force-applying element displaces the first guide element along an axis of the second guide element. Preferably, the force-applying element displaces the first guide element along the jaw arch. Preferably, the first guide element slides on the second guide element due to the directed force generated by the force-applying element. Preferably, the force-applying element generates a directed force over time. This results in a movement of the first guide element relative to the second guide element over time. In this context, "displacement" is understood to mean a movement between at least two points dependent on a force applied by the force-applying element EE 16209 WO.This can provide a particularly advantageous level of treatment comfort. Furthermore, it can lead to a particularly advantageous orthodontic treatment.

[0021] Furthermore, it is proposed that the first guide element of the distal component and the second guide element of the mesial component be designed to be appropriately matched to each other. Preferably, the first and second guide elements form a clearance fit. Alternatively, a transition fit is also conceivable. Preferably, the cross-section of the opening perpendicular to the main direction of extension of the first guide element and the cross-section perpendicular to the main direction of extension of the second guide element are designed to be appropriately matched to each other. In this context, "appropriately" means that the dimensions of the opening of the first guide element and the cross-section perpendicular to the main direction of extension of the second guide element are designed to be appropriately matched to each other. This allows for the provision of a particularly advantageous orthodontic device.Furthermore, a particularly advantageous and accurate orthodontic treatment can be achieved.

[0022] Furthermore, it is proposed that the force-exercising element be formed by a spring and / or an elastomeric chain. Preferably, the spring and / or the elastomeric chain is installed in a pre-tensioned operating state. Preferably, the spring and / or elastomeric chain is elastically deformed in an operating state. Preferably, the spring and / or elastomeric chain generates a spring force or tension force. In this context, "pre-tensioned" is understood to mean a force that occurs when the spring and / or elastomeric chain attempts to return to its initial state. For example, the resulting force is referred to as a restoring force. Preferably, the force-exercising element is formed by a spring element.A “spring element” shall be understood to mean, in particular, a macroscopic element that has at least an extent which, in a normal operating condition, is elastically variable by at least 10%, in particular by at least 20%, preferably by at least 30%, and particularly advantageously by at least 50%, and which in particular generates a counterforce that is dependent on a change in extent and preferably proportional to the change, and which opposes the change. See EE 16209 WO.

[0023] The "extent" of an element shall be understood to mean, in particular, the maximum distance between two points of a perpendicular projection of the element onto a plane. A "macroscopic element" shall be understood to mean, in particular, an element with an extent of at least 1 mm, more specifically at least 5 mm, and preferably at least 10 mm. This allows, in particular, the provision of an advantageous orthodontic device. Furthermore, it allows, in particular, the achievement of an advantageous, consistent orthodontic treatment.

[0024] Furthermore, it is proposed that the force-exerting element be formed by at least one tension spring. Preferably, the tension spring is designed, in particular, for closing a gap of at least two teeth. Preferably, the tension spring exerts a tensile force between the first guide element and the second guide element. Preferably, the tensile force acts only on one tooth. Preferably, the tensile force moves only one tooth. Alternatively, the tensile force acts on several teeth. Furthermore, the tensile force moves two or more teeth. This allows, in particular, advantageous gap closure. Furthermore, advantageous orthodontic treatment can be achieved.

[0025] Furthermore, it is proposed that the force-exercising element has a coupling point with the distal component. Preferably, the force-exercising element has a detachable coupling point with the distal component. Alternatively, a permanent coupling point between the force-exercising element and the distal component is also conceivable. Preferably, the distal component has a first connecting element for the force-exercising element. Preferably, the first connecting element is formed integrally with the distal component. Alternatively, the first connecting element is formed with the distal component in a material-bonded manner. Preferably, the first connecting element is formed in abutting the first guide element. Alternatively, other arrangements of the first connecting element on the distal component that appear useful to a person skilled in the art are also conceivable. Preferably, the first connecting element is formed in the shape of a hook.Furthermore, it is conceivable that the first connecting element has a locking element which secures the force-exerting element against springing out of the first connecting element. Alternatively, other forms of the first connecting element that would appear useful to a person skilled in the art are also conceivable. Preferably, the force-exerting element EE 16209 WO has, in particular, a second connecting element at the coupling point with the distal component. Preferably, the second connecting element is force-fit with the force-exerting element. Alternatively, the force-exerting element forms the second connecting element. Furthermore, other second connecting elements that would appear useful to a person skilled in the art are also conceivable. Preferably, the first connecting element and the second connecting element form, in particular, a force-fit, releasable coupling point.Furthermore, the first and second connecting elements form a positive-locking, detachable coupling point. Alternatively, a permanent coupling point between the first and second connecting elements is also conceivable. Preferably, the first and second connecting elements are designed to be compatible with each other. This allows for particularly advantageous comfort and facilitates orthodontic treatment.

[0026] Furthermore, it is proposed that the force-exercising element has a connection point with the mesial component. Preferably, the force-exercising element has a detachable connection point with the mesial component. Alternatively, a permanent connection point between the force-exercising element and the mesial component is also conceivable. Preferably, the mesial component has a first connection element for the force-exercising element. Preferably, the first connection element is formed integrally with the mesial component. Alternatively, the first connection element is formed with a material bond to the mesial component. Preferably, the first connection element is formed in abutment against the second guide element. Alternatively, other arrangements of the first connection element on the mesial component that appear useful to a person skilled in the art are also conceivable. Preferably, the first connection element is formed in the shape of a hook.Furthermore, it is conceivable that the first connection element has a locking element which secures the force-exerting element against springing out of the first connection element. Alternatively, other forms of the first connection element that would appear useful to a person skilled in the art are also conceivable. Preferably, the force-exerting element has a second connection element at the coupling point with the mesial component. Preferably, the second connection element is designed to be force-fit with the force-exerting element. Alternatively, the force-exerting element forms the second connection element. Furthermore, other second connection elements that would appear useful to a person skilled in the art are also conceivable. Preferably, the first connection element and the second connection element form a force-fit, releasable coupling point. Furthermore, the first connection element and the second connection element form a form-fit, releasable coupling point.Alternatively, a permanently attached connection between the first and second connecting elements is also conceivable. Preferably, the first and second connecting elements are designed to be compatible with each other. This allows for particularly advantageous comfort. Furthermore, it allows for particularly advantageous orthodontic treatment.

[0027] Furthermore, it is proposed that the coupling element and the first guide element are integrally connected via a connecting element. Preferably, the connecting element joins the coupling element and the first guide element by a material bond. Preferably, the connecting element is formed centrally in the main extension direction of the first guide element. Alternatively, an embodiment without a connecting element is also conceivable. Furthermore, the coupling element and the first guide element are formed integrally with each other.The term "one-piece" is to be understood in particular as being at least materially bonded, for example by a welding process, an adhesive process, an injection molding process and / or another process that would appear appropriate to a person skilled in the art, and / or advantageously formed in one piece, such as by manufacturing from a single casting, by laser sintering and / or by manufacturing in a single- or multi-component injection molding process, and advantageously from a single blank. This allows for the provision of a particularly advantageously stable orthodontic appliance.

[0028] Furthermore, it is proposed that the retaining element and the second guide element are formed in one piece. Preferably, the second guide element is formed in a material-bonded manner with the retaining element. Preferably, the retaining element is arranged at one end of the second guide element in the main extension direction. Furthermore, in particular, EE 16209 WO

[0029] A connection between the retention element and the second guide element is conceivable via a connecting element. Alternatively, other connections between the retention element and the second guide element that would appear sensible to a person skilled in the art are also conceivable. This allows for the provision of a particularly advantageously stable orthodontic appliance.

[0030] Furthermore, it is proposed that the coupling element of the distal component be designed as an orthodontic band. Preferably, the orthodontic band is formed by a metal ring. Preferably, the orthodontic band forms an adhesive bond with at least one tooth. This provides a particularly advantageous connection point between the orthodontic appliance and the at least one tooth.

[0031] Furthermore, the invention relates to a modular jaw correction system with an orthodontic device. An additional force-exercising element is proposed, wherein the force-exercising element can be replaced by the additional force-exercising element depending on the application, and the additional force-exercising element is designed as a compression spring. Preferably, the force-exercising element can be replaced by the additional force-exercising element, particularly in a modular fashion. Preferably, the additional force-exercising element exerts a compressive force between a first guide element and a second guide element. Preferably, the first connecting elements are designed to accommodate a compression spring. Preferably, the first connecting elements are designed in a mushroom shape. Alternatively, other shapes of the first connecting element that appear useful to a person skilled in the art are also conceivable.Preferably, the first and second connecting elements are designed to be compatible with each other. Preferably, the connection between the first and second connecting elements of the further force-exercising element is made in a manner consistent with the connection between the first and second connecting elements of the force-exercising element. This allows for the provision of an orthodontic device that is particularly advantageously versatile.

[0032] Furthermore, the invention relates to a method for correcting a malocclusion using an orthodontic appliance. It is proposed that in at least one method step, the orthodontic appliance is used simultaneously (EE 16209 WO) and / or consecutively with an aligner. Preferably, when the orthodontic appliance is used with an aligner, the orthodontic appliance prevents teeth from tipping or rotating during movement. Preferably, only the orthodontic appliance prevents tipping or rotation of the teeth to be moved. Preferably, the teeth are set in motion, in particular by the aligner and / or the orthodontic appliance. Preferably, the orthodontic appliance is permanently attached to the teeth during treatment. Preferably, the aligner is detachably attached to the teeth during treatment.In this context, an "aligner" is understood to be a thin, transparent dental tray that rests on the dental arch and can be removed at any time. Preferably, the aligner is intended for correcting simple and moderate misalignments of the teeth. Preferably, the aligner is manufactured from transparent thermoplastic polymers (e.g., PET-G or PU) using a thermoforming process. Alternatively, it is conceivable that the aligner is printed using a direct printing process. Preferably, the aligner is made of a plastic. Alternatively, other materials that appear suitable to a person skilled in the art are also conceivable for the aligner. This can provide, in particular, advantageous comfort. Furthermore, it can achieve, in particular, advantageous orthodontic treatment. Finally, it can achieve, in particular, advantageous time savings in orthodontic treatment.

[0033] It is further proposed that, in at least one process step, the orthodontic appliance is positioned between the aligner and the at least one tooth. Preferably, the aligner is designed to accommodate the orthodontic appliance. Preferably, the orthodontic appliance is attached to at least one tooth or, in particular, to a set of teeth. Preferably, the aligner is placed onto the orthodontic appliance. Preferably, in at least one process step, the aligner encloses the entire set of teeth in three spatial directions. Preferably, in at least one process step, the aligner encloses the orthodontic appliance in three spatial directions. Furthermore, it is also conceivable, in at least one process step, that the aligner and the EE 16209 WO orthodontic appliance are arranged side by side. In this case, the aligner encloses, in particular, only a portion of the set of teeth.This can provide a particularly advantageous level of comfort. Furthermore, it can facilitate particularly effective orthodontic treatment.

[0034] The orthodontic device and method according to the invention are not limited to the application and embodiment described above. In particular, the orthodontic device and method according to the invention may, to achieve a functionality described herein, comprise a different number of individual elements, components, and units than the number specified herein. Furthermore, values ​​within the specified limits of the value ranges stated in this disclosure are also considered disclosed and freely usable.

[0035] Drawings

[0036] Further advantages will become apparent from the following description of the drawings. The drawings illustrate two exemplary embodiments of the invention. The drawings, the description, and the claims contain numerous features in combination. A person skilled in the art will expediently consider the features individually and combine them into meaningful further combinations.

[0037] They show:

[0038] Fig. 1 shows an orthodontic device comprising a distal component, with a coupling element, with a first guide element, a mesial component, with a second guide element and with at least one retention element, and a force-exerting element, in a schematic representation.

[0039] Fig. 2 shows a distal component, with a coupling element, with a first guide element, in a schematic representation.

[0040] Fig. 3 shows a top view of a distal component, with a coupling element, with a first guide element, in a schematic representation.

[0041] Fig. 4 shows a side view of a distal component, with a coupling element, with a first guide element, in a schematic representation, EE 16209 WO

[0042] Fig. 5 shows a side view of a distal component, with a coupling element, with a first guide element, in a schematic representation.

[0043] Fig. 6 shows a mesial component, with a second guide element and with at least one retaining element, in a schematic representation.

[0044] Fig. 7 shows a side view of a mesial component, with a second guide element and with at least one retaining element, in a schematic representation.

[0045] Fig. 8 shows a force-exerting element in a schematic representation.

[0046] Fig. 9 shows a schematic flowchart of a method for correcting a malocclusion using the orthodontic device according to the invention.

[0047] Fig. 10 shows a schematic flowchart of a method for correcting a malocclusion using the orthodontic device according to the invention.

[0048] Fig. 11 shows a schematic exploded view of a method for correcting a malocclusion using the orthodontic device according to the invention and

[0049] Fig. 12 shows a modular jaw correction system with an orthodontic device and another force-exerting element, in a schematic representation.

[0050] Description of the exemplary implementations

[0051] Fig. 1 shows an orthodontic device 10a comprising a distal component 12a with a coupling element 14a, a first guide element 16a which has a coupling point with a tooth 18a via the coupling element 14a, a mesial component 20a with a second guide element 22a and a retention element 24a which has a coupling point with a further tooth 26a via the retention element 24a, and a force-exerting element 28a. The first guide element 16a is slidably connected to the second guide element 22a. The principal axis of extension of the force-exerting element 28a is spaced apart from the principal axis of extension of the second guide element 22a. The orthodontic device 10a is designed to move teeth 18a, 26a within a jaw 42a without tipping and rotations and, for example, to actively close gaps 44a EE 16209 WO between teeth 18a, 26a.The movement of teeth 18a, 26a occurs along a dental arch 46a. The orthodontic appliance 10a is rigidly connected to teeth 18a, 26a of the maxilla or teeth 18a, 26a of the mandible. The orthodontic appliance 10a is located in a posterior region 48a. Alternatively, the orthodontic appliance 10a is located in an anterior region 50a. The distal component 12a is located in a posterior region of the oral cavity 52a, near the pharynx 54a. The orthodontic appliance 10a connects at least one tooth 18a, in particular movably, to at least one other tooth 26a. The mesial component 20a is located in an anterior region of the oral cavity 52a, near the anterior region 50a.

[0052] The distal component 12a has a first guide element 16a (see Figs. 2, 3, 4 and 5). The first guide element 16a is designed as a sliding bearing. The first guide element 16a is designed as an elongated cuboid. The elongated cuboid has a recess 58a in its center, resulting in a U-shape perpendicular to a principal extension plane of the first guide element 16a.

[0053] Alternatively, other shapes that would appear sensible to a specialist are also conceivable. Furthermore, the first guide element 16a has a feedthrough 56a. The feedthrough 56a runs through the entire cuboid in its main direction of extension. The feedthrough 56a has a rectangular cross-section perpendicular to the main direction of extension. Alternatively, a polygonal or circular cross-section is also conceivable.

[0054] The distal component 12a has a coupling element 14a (see Figs. 2-5). The coupling element 14a forms a connection point with a first tooth 18a. The connection point is designed as an adhesive bond. A removable connection is also conceivable. The coupling element 14a of the distal component 12a is designed as an orthodontic band. The orthodontic band is formed by a metal ring. The metal ring encircles the tooth in four directions. The coupling element 14a has at least one connecting element 76a, which is designed to engage positively in the corresponding recesses on an inner surface of an aligner 40a in order to achieve advantageous properties with regard to retention and force and torque transmission between the aligner 40a and the orthodontic device 10a. EE 16209 WO

[0055] The connecting element 76a is formed integrally, in particular as a single piece, with the coupling element 14a. The connecting element 76a is designed as a protrusion projecting from the surface of the coupling element 14a. The connecting element 76a is cuboid in shape. Alternatively, any other shape of the connecting element 76a that would appear sensible to a person skilled in the art is also conceivable.

[0056] The distal component 12a has a connecting element 34a (see Figs. 2-5). The coupling element 14a and the first guide element 18a are integrally connected to each other via the connecting element 34a. The connecting element 34a is formed centrally in the main extension direction of the first guide element 18a. Alternatively, a design without a connecting element is also conceivable. Furthermore, the coupling element 14a and the first guide element 18a are formed integrally to each other. The connecting element 34a is formed on the inner side of the orthodontic band in the direction of the tongue. The force-exerting element 28a has a coupling point with the distal component 12a. The force-exerting element 28a has a detachable coupling point with the distal component 12a.Alternatively, an insoluble coupling point between the force-exerting element 28a and the distal component 12a is also conceivable.

[0057] The distal component 12a has a first connecting element 62a for the force-exerting element 28a (see Figs. 2-5). The first connecting element 62a is integrally connected to the distal component 12a. Alternatively, the first connecting element 62a is formed with the distal component 12a in a material-bonded manner. The first connecting element 62a is formed in a position abutting the first guide element 16a. Alternatively, other arrangements of the first connecting element 62a on the distal component 12a that would appear advantageous to a person skilled in the art are also conceivable. The first connecting element 62a is formed in the shape of a hook. Furthermore, it is conceivable that the first connecting element 62a has a locking element that secures the force-exerting element 28a against springing out of the first connecting element 62a. Alternatively, other shapes of the first connecting element 62a that would appear advantageous to a person skilled in the art are also conceivable.The first connecting element 62a is arranged on the underside of the first guide element 16a. EE 16209 WO.

[0058] The mesial component 20a has a second guide element 22a (see Figs. 6 and 7). The second guide element 22a is designed as a guide rib and has a curvature along its principal direction of extension. The second guide element 22a is designed as an elongated component. The second guide element 22a extends along the jaw arch 46a. Alternatively, a second guide element 22a in a straight embodiment is also conceivable. The second guide element 22a has a polygonal cross-section perpendicular to its principal direction of extension. Furthermore, a particularly round cross-section perpendicular to the principal direction of extension is also conceivable. Alternatively, other cross-sectional shapes of the second guide element 22a that would appear sensible to a person skilled in the art are also conceivable. The second guide element 22a is rigid.

[0059] The first guide element 16a of the distal component 12a and the second guide element 22a of the mesial component 20a are designed to be appropriately matched to each other. The first guide element 16a and the second guide element 22a form a clearance fit. Alternatively, a transition fit is also conceivable. The cross-section of the feedthrough 56a perpendicular to the main direction of extension of the first guide element 16a and the cross-section perpendicular to the main direction of extension of the second guide element 22a are designed to be appropriately matched to each other.

[0060] The mesial component 20a has a retaining element 24a (see Figs. 6 and 7). The retaining element 24a forms a coupling point with another tooth 26. The coupling point is designed as an adhesive bond. A removable connection is also conceivable as the coupling point. Alternatively, other insoluble connections that would appear sensible to a person skilled in the art are also conceivable. The retaining element 24a is designed as a retaining hook. The second guide element 22a is formed with the retaining element 24a in a material-bonded manner. The retaining element 24a is arranged at one end of the second guide element in the main direction of extension. Furthermore, a connection via a connecting element between the retaining element 24a and the second guide element 22a is particularly conceivable. Alternatively, other connections between the retaining element 24a and the second guide element 22a that would appear sensible to a person skilled in the art are also conceivable.

[0061] The mesial component 20a has a first connection element 64a for the force-exerting element 28a (6 - 7). The first connection element 64a is integrally connected to the mesial component 20a (EE 16209 WO). Alternatively, the first connection element 64a is formed with the mesial component 20a by a material bond. The first connection element 64a is formed in abutting the second guide element 22a. Alternatively, other arrangements of the first connection element 64a on the mesial component 20a that would appear sensible to a person skilled in the art are also conceivable. The first connection element 64a is formed in a hook shape. Furthermore, it is conceivable that the first connection element 64a has a locking element that secures the force-exerting element 28a against springing out of the first connection element 64a. Alternatively, other shapes of the first connection element 64a that would appear sensible to a person skilled in the art are also conceivable.The first connecting element 64a is arranged on a bottom side of the second guide element 22a.

[0062] The orthodontic device 10a has a force-exercising element 28a (see Fig. 8). In an operating state, the force-exercising element 28a is arranged vertically below the second guide element 22a. Alternatively, other arrangements of the force-exercising element 28a that would be considered useful to a person skilled in the art are also conceivable. The force-exercising element 28a generates a directed force along its principal axis of extension. The distance between a principal axis of extension 30a of the force-exercising element 28a and a principal axis of extension 32a of the second guide element 22a is greater than half the diameter perpendicular to the principal direction of extension of the force-exercising element 28a. Furthermore, other distances that would be considered useful to a person skilled in the art are conceivable. The force-exerting element 28a displaces the first guide element 16a against the second guide element 22a.The force-applying element 28a displaces the first guide element 16a along the second guide element 22a along the jaw arch 46a. The first guide element 16a slides on the second guide element 22a due to the directed force generated by the force-applying element 28a. The force-applying element 28a generates a directed force over time. This results, in particular, in a movement of the first guide element 16a relative to the second guide element 22a over time.

[0063] The force-applying element 28a is formed by a spring and / or an elastomeric chain. The spring and / or elastomeric chain is installed in a pre-tensioned operating state. The spring and / or elastomeric chain is in an EE 16209 WO

[0064] In its operating state, the element is elastically deformed and generates a spring force or tension force. The force-exerting element 28a is formed by at least one tension spring in Fig. 1. The tension spring exerts a tensile force between the first guide element 16a and the second guide element 22a.

[0065] The force-exerting element 28a has two second connecting elements 66a at the coupling point with the distal component 12a and the mesial component 20a. The second connecting elements 62a are force-fitted to the force-exerting element 28a. The second connecting elements 66a are arranged at the ends in the main extension direction of the force-exerting element 28a. The connecting elements 66a are integrated into the spring. The spring is formed by twisting into the connecting elements 66a. Alternatively, the force-exerting element 28a forms the second connecting element 66a. Furthermore, other second connecting elements 66a that would appear useful to a person skilled in the art are also conceivable. The first connecting elements 62a, 64a and the second connecting elements 66a form a force-fit, detachable coupling point. Furthermore, the first connecting elements 62a, 64a and the second connecting elements 66a form a positive-locking detachable coupling point.Alternatively, a particularly inseparable coupling point between the first connection elements 62a, 64a and the second connection elements 66a is also conceivable. The first connection elements 62a, 64a and the second connection elements 66a are designed to be compatible with each other.

[0066] Figures 9 and 10 show two schematic flowcharts of a procedure for correcting a malocclusion using an orthodontic device 10a (Figures 9 and 10). When the orthodontic device 10a is used with an aligner 40a, the orthodontic device 10a prevents teeth 18a and 26a from tipping or rotating during movement. In a procedure step 74a, teeth 18a and 26a are moved by the aligner 40a and / or the orthodontic device 10a. At the start of the jaw correction 74a, the aligner 40a and the orthodontic device 10a are inserted into a dentition 68a in a procedure step 74a. The aligner 40a is then attached to the dentition 68a in a removable manner during treatment in a procedure step 74a. In the procedures, in a process step 74a, the orthodontic device 10a is used simultaneously (see Fig. 9) and / or consecutively (see Fig. 10) with an aligner 40a.In a first procedure, the orthodontic appliance 10a and an aligner 40a are used simultaneously (Fig. 9). For this purpose, in at least one procedure step 74a, the orthodontic appliance 10a is positioned between the aligner 40a and at least one tooth 18a (Fig. 11). The aligner 40a is designed for use in combination with the orthodontic appliance 10a. The aligner 40a is placed onto the orthodontic appliance 10a. In a procedure step 74a, the aligner 40a encloses the entire dentition 68a in three spatial directions. In a procedure step 74a, the aligner 40a encloses the orthodontic appliance 10a in three spatial directions. Furthermore, it is also conceivable in at least one process step 74a that the aligner 40a and the orthodontic device 10a are arranged side by side.In a first procedure step 74a, the orthodontic appliance 10a and an aligner 40a are used consecutively (Fig. 10). Following procedure step 74a, the orthodontic appliance 10a is inserted after the aligner 40a is inserted in the subsequent procedure step 74a. At the end of the jaw correction 72a, the aligner 40a and the orthodontic appliance 10a are removed from the dentition 68a in a procedure step 74a.

[0067] Figure 12 shows another embodiment of the invention. The following descriptions and drawings are essentially limited to the differences between the embodiments, whereby, with regard to identically designated components, particularly those with the same reference numerals, reference may also be made to the drawings and / or the description of the other embodiments, especially Figures 1 to 11. To distinguish the embodiments, the letter "a" is appended to the reference numerals of the embodiment in Figures 1 to 11. In the embodiment of Figure 12, the letter "a" is replaced by the letter "b".

[0068] Fig. 12 shows a modular orthodontic correction system 36b with an orthodontic appliance 10b and an additional force-exerting element 38b. The force-exerting element 28b is replaced by the additional force-exerting element 38b depending on the application. The additional force-exerting element 38b is designed as a compression spring. The force-exerting element 28b is replaced modularly by the additional force-exerting element 38b. The additional force-exerting element 38b exerts a compressive force between a first guide element 16b and a second guide element 22b. The orthodontic appliance 10 has a first connecting element 62b, 64b and a second connecting element 66b. The first connecting elements 62b, 64b are designed to be adapted to a compression spring. The first connecting elements 62b, 64b are mushroom-shaped. Alternatively, other forms of the first connecting element 62b, 64b that would appear sensible to a specialist are also conceivable.The first connecting elements 62b; 64b and the second.

[0069] The connecting elements 66b are designed to be compatible with each other. The connection between the first connecting elements 62b, 64b and the second connecting elements 66b of the further force-exerting element 38b is made in accordance with the connection between the first connecting elements 62b, 64b and the second connecting elements 66b of the force-exerting element 28b.

[0070] Reference sign

[0071] 10 orthodontic appliances

[0072] 12 distal components

[0073] 14 coupling element

[0074] 16 first guide element

[0075] 18 teeth

[0076] 20 mesial component

[0077] 22 second guide element

[0078] 24 retaining element

[0079] 26 teeth

[0080] 28 force-exerting element

[0081] 30 Main extension axis

[0082] 32 Main extension axis

[0083] 34 Connecting element

[0084] 36 modular jaw correction system

[0085] 38 other force-exerting element

[0086] 40 aligners

[0087] 42 pine trees

[0088] 44 Gap

[0089] 46 jaw arches

[0090] 48 Posterior region

[0091] 50 Anterior region

[0092] 52 Oral cavity

[0093] 54 throats

[0094] 56 Implementation

[0095] 58 recess

[0096] 62 first connection element

[0097] 64 first connection element

[0098] 66 second connection element

[0099] 68 Denture EE 16209 WO Start Jaw Correction End Jaw Correction Procedure Step Connecting Element

Claims

EE 16209 WO 04.09.2025 Claims 1. Orthodontic device (10a) comprising at least one distal component (12a), with at least one coupling element (14a), with at least one first guide element (16a), in particular a sliding bearing, which has a coupling point with a tooth (18a) via the coupling element (14a), at least one mesial component (20a), with at least one second guide element (22a) and with at least one retention element (24a), which has a coupling point with a further tooth (26a) via the retention element (24a), and at least one force-exerting element (28a), wherein the first guide element (16a) is slidably connected to the second guide element (22a), characterized in that the principal extension axis (30a) of the force-exerting element (16a) is arranged at a distance from the principal extension axis (32a) of the second guide element (22a).

2. Orthodontic device (10a) according to claim 1, characterized in that the force-exerting element (28a) displaces the first guide element (16a) against the second guide element (22a).

3. Orthodontic device (10a) according to claims 1 and 2, characterized in that the first guiding element (16a) of the distal component (12a) and the second guiding element (22a) of the mesial component (20a) are designed to be adequately matched to each other.

4. Orthodontic device (10a) according to one of the preceding claims, characterized in that the force-exerting element (28a) is formed by a spring and / or an elastomeric chain. EE 16209 WO 5. Orthodontic device (10a) according to one of the preceding claims, characterized in that the force-exerting element (28a) is formed by at least one tension spring.

6. Orthodontic device (10a) according to one of the preceding claims, characterized in that the force-exerting element (28a) has a coupling point with the distal component (12a).

7. Orthodontic device (10a) according to one of the preceding claims, characterized in that the force-exerting element (28a) has a coupling point with the mesial component (20a).

8. Orthodontic device (10a) according to one of the preceding claims, characterized in that the coupling element (14a) and the first guide element (16a) are integrally connected to each other via a connecting element (34a).

9. Orthodontic device (10a) according to one of the preceding claims, characterized in that the retaining element (24) and the second guide element (22a) are formed in one piece.

10. Orthodontic device (10a) according to one of the preceding claims, characterized in that the coupling element (14a) of the distal component (12a) is designed as an orthodontic band.

11. Modular jaw correction system (36b) with an orthodontic device (10b) according to one of the preceding claims, characterized by a further force-exerting element (38b), wherein the force-exerting element (28b) can be replaced by the further force-exerting element (38b) depending on the application, wherein the further force-exerting element (38b) is designed as a compression spring.

12. Method for correcting a malposition of teeth by means of an orthodontic device (10a) according to any one of claims 1 to 10. EE 16209 WO 13. Method according to claim 12, characterized in that in at least one method step (74a) the orthodontic device (10a) is used simultaneously and / or consecutively with an aligner (40a).

14. Method according to claim 12, characterized in that in at least one method step (74a) the orthodontic device (10a) is arranged between the aligner (40a) and the at least one tooth (18a, 26a).

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