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
  • A61C7/28—Securing arch wire to bracket
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
  • A61C13/00—Dental prostheses; Making same
  • A61C13/0003—Making bridge-work, inlays, implants or the like
  • A61C13/0006—Production methods
  • A61C13/0013—Production methods using stereolithographic techniques
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
  • A61C13/00—Dental prostheses; Making same
  • A61C13/0003—Making bridge-work, inlays, implants or the like
  • A61C13/0006—Production methods
  • A61C13/0019—Production methods using three dimensional printing
• • 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
  • A61C7/002—Orthodontic computer assisted systems
• • 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
  • A61C7/145—Lingual brackets
• • 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
  • A61C7/30—Securing arch wire to bracket by resilient means; Dispensers therefor
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
  • A61C2201/00—Material properties
  • A61C2201/007—Material properties using shape memory effect
• • 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
  • A61C7/148—Brackets; Fixing brackets to teeth with occlusal or gingival archwire slot opening
• • 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
  • A61C7/20—Arch wires

Definitions

• the present application relates to a bracket for an orthodontic
• a device comprising a bracket base having a mounting surface for attaching the bracket to an associated surface of a tooth, at least one bracket slot for receiving at least one archwire of the orthodontic device, wherein the bracket slot is disposed on a side facing away from the mounting surface of the bracket base, and at least one locking means, by means of which at least the Bracketlot is at least partially lockable such that falling out of a
• the present application relates to an orthodontic appliance comprising at least one archwire, a plurality of brackets for receiving the archwire, the brackets being adapted to be connected in each case to a surface of a tooth in a force-transmitting manner, wherein by means of Brackets of the archwire is receivable such that a force-transmitting connection between the archwire and the teeth cooperating with the brackets can be produced, wherein the bracket has at least one Bracketslot for receiving the archwire and the archwire is fixable in the bracket slot by means of a locking means such that a movement of the archwire is blocked relative to the Bracketslot at least in a direction perpendicular to a longitudinal axis of the archwire, wherein the Bracketslot cooperates with an insertion opening of the bracket, through which the archwire is inserted into the Bracketslot, wherein the Brackets are each integrally formed.
• the present application relates to methods for the production of brackets.
• the "orthodontic appliance” is commonly referred to as a brace that is adapted to actively treat a patient's malocclusion, such that at least one archwire of the brace is engaged with the described brackets so that a transmission of force between the archwire and the respective teeth to be treated can take place
• Bracket base refers to the part of the bracket that is directly brought into contact with a respective adjacent tooth, for which the bracket base has the attachment surface, which effectively provides a contact surface between the bracket
• the bracket slot is the part of a bracket that is suitable for accommodating a respective archwire, and in particular square archwires are used in the art, so that a bracket slot of a bracket is typically also angular Training the Bracketlots, it may be particularly important that it is adapted as possible to the dimensions of the respective arch wire, so that a power transmission between the arch wire and the bracket can be made as lossless, that is without a
• the "locking means" is a means by means of which the respective archwire can be fixed in the bracket slot, the fixation of the archwire not necessarily comprising a complete one
• Fixation that is, one that blocks movement of the archwire relative to the bracket or the Bracketslot in all directions. Instead, in particular, it may already be sufficient if the locking means the
• Brackets solder only closes so that falling out of the archwire is prevented from the Bracketslot, however, nevertheless, for example, allows a relative movement between the archwire and the bracket in a direction parallel to a longitudinal axis of the archwire. It is understood that such means as
• Locking means in the sense of the present application are conceivable, the one can cause complete blockage of any relative movement between an archwire and the respective bracket.
• an "archwire” is understood to be an elongated, arched element which is used to connect the individual brackets to one another Depending on the type of orthodontic appliance used, the archwire can have an active or a passive role In any case, it is not absolutely necessary that the archwire be formed by a “wire” in the sense of a metallic wire, although this is generally the case.
• bracket is manufactured from a single piece, and in particular it is conceivable that the bracket is machined out of a block of material, for example by cutting out by means of a laser, by means of water cutting or by means of
• the water cutting is to be preferred in particular when the material block has a certain thickness, the water cutting brings the advantage of a lack of heating of the workpiece with it.
• bracket according to the invention at the latest in a finished state of the same, it is not possible to distinguish individual components or elements of the bracket from one another. Instead, all sections or areas of the bracket are connected together so that they merge directly into one another.
• bracket according to the invention is formed entirely from a material part and consequently from a single material. Nevertheless, it is basically also conceivable for a one-piece design that during the
• Brackets of the type described above are already known in the art. Reference is made in particular to International Patent Applications WO 96/09015 A1 and WO 201 1/012486 A1.
• the former document discloses a self-ligating bracket having a bracket base and a bracket slot. At the bracket base so-called wings are arranged on a side facing away from a mounting surface of the bracket, which laterally surround the bracket slot of the local bracket. At one of the bracket bases
• This locking means is in the form of projecting lugs, which in a
• the presented in the document bracket comprises a total of two pair of wings, which are spaced from each other on the bracket base. Between these pairs of wings inserted in the Bracketslot or formed by means of the wing pairs Bracketslots arch wire is guided freely.
• Injection molding is made of a plastic.
• a bracket is also described, which is also designed self-ligating.
• the peculiarity of the presented there bracket is that the bracket is made as a whole in one piece from Nitinol, in particular, the side wings of the bracket are integrally formed with the bracket base.
• the Bracketslot is hook-shaped
• Treatment procedure is quite common in practice.
• a coarse direction of the respective misaligned positions is treated by means of a conventional brace
• a second treatment step only remaining minor misaligned positions are treated by means of a dental splint become.
• the latter has the disadvantage that it is relatively poorly suited to induce large movements of the teeth and consequently to treat more severe malocclusions completely.
• it has the advantage that in the context of
• the present application is therefore based on the object to provide a way to orthodontic treatment of a patient in principle
• a “bulge” is understood to mean an area of the bracket in which an outer contour of the bracket is arched, the back of the bracket being at least in one dimension, in particular in the direction parallel to the vertical axis of the bracket, According to the invention, the curvature is convex.
• the "vertical axis" of a bracket is understood to mean that axis which extends perpendicularly to a longitudinal axis of the bracket slot and also includes an upper and a lower end point of the mounting surface of the bracket base
• the mounting surface is to some extent a contact surface between the bracket and the respective surface of the tooth Attachment surface has relative to a vertical axis of a respective tooth to be treated in a sense an upper and a lower terminal point at which a contact zone between the respective tooth surface and the mounting surface ends.
• the attachment surface has a slightly convex shape that conforms to a convex shape of a lingual surface of the particular tooth to be treated. The attachment surface is therefore often not completely in a plane, as each
• Corresponding tooth surface is equally not even.
• the vertical axis therefore, it is not appropriate to describe a parallelism of the same to a plane of the mounting surface, but rather a parallelism to a plane that includes both an upper edge and a lower end of the mounting surface, that is, in a sense opposite endpoints between the bracket base and the adjacent tooth surfaces.
• These terminals can be determined independently of the connection of a respective bracket with a tooth on the bracket, since the bracket taken alone forms a dedicated mounting surface. This will be exemplified below in connection with the set forth
• the bracket according to the invention has many advantages.
• the invention was based on the idea of designing the brackets in such a way that they act directly as an attachment for the first treatment step, in which the teeth are treated by the orthodontic appliance, for the second treatment step, namely the splint therapy, are reusable.
• the suitability for use as an attachment provides the bracket due to the bulge according to the invention, which can be used as a point of attack for a dental splint in the context of a splint therapy.
• Treatment step does not depend on the respective tooth treated, but rather to leave in the oral cavity of the patient and continue to use in the function of an attachment for a subsequent splint therapy.
• the rear side thereof is formed, at least in the region of the bulge, preferably completely, without a jump-back. Under “return-free” is in the sense of the present
• Recesses are known, which are directed towards the bracket base. Above all, such a recess can be formed by an insertion opening for a bracket slot.
• the back has no indentations, slots or the like in the region of the curvature.
• the back of the bracket is formed undercut.
• the design of the bulge in a non-returnable manner offers the advantage that the dental splint as such, whose wall thicknesses are comparatively thin, can not "tighten” on the bracket in such a way that a change of the respective dental splint against a Further dentition is impossible or at least excessively difficult
• Splint Therapy A variety of splints can be inserted one after another in a specific order, with each splint a specific one
• the bulge extending further extends over at least 60% of the height of the bracket, preferably at least 70%, more preferably at least 80%. Since brackets are often very small, the relatively large formation of the bulge can ensure that an attack surface of a respective Zahrischiene on the bracket (in its function as an attachment) is sufficient to transmit desired forces or sufficiently act as an active lever.
• the bracket according to the invention can be particularly advantageous if a thickness of the bracket, measured in a direction perpendicular to the vertical axis of the bracket, is at least one and a half times, preferably at least twice, an average thickness in the region of the protrusion Brackets outside the
• the bracket extends by means of the bulge in a direction away from the tooth surface direction.
• brackets extend to a certain extent in the direction of a tongue of the respective patient.
• Such a prominently formed bulge is particularly well suited as a target for a dental splint in the context of a splint therapy.
• the appropriately designed bracket is particularly good in function as an attachment reusable.
• the same is at least partially, preferably completely, formed by a highly elastic material, preferably a shape memory material.
• a "highly elastic material” is understood as meaning a material which has a pronounced elastic range, that is to say that such a material can carry out considerable elastic deformations without permanently, ie plastically, deforming such a material is capable of accepting an elongation of at least 1%, preferably at least 2%, more preferably at least 3%, without undergoing plastic deformation.
• One type of material which typically exhibits the described high elastic properties is so-called “shape memory material”. Under such a super-elastic material is understood in the context of the present application. Also, such material is sometimes referred to in the art as shape memory alloy.
• Polyether ketone in particular polyetheretherketone (PEEK), of a thermoplastic fluoroplastic, in particular polyvinylidene fluoride (PVFD), of polyoxymethylene (POM) or of a polymide, in particular polyetherimide (PEI) may be formed.
• PVFD polyvinylidene fluoride
• POM polyoxymethylene
• PEI polyetherimide
• the locking means of the bracket is formed by a highly elastic material. This is based on the consideration that the locking means must be moved in the course of inserting an archwire in the Bracketlot, so that an insertion opening of the Bracket slot is so wide that the cross section of the archwire fits through. Once the archwire is inserted into the bracket slot, the locking means must be deformed back so that it blocks the insertion again from now on.
• the highly elastic material is based on the consideration that the locking means must be moved in the course of inserting an archwire in the Bracketlot, so that an insertion opening of the Bracket slot is so wide that the cross section of the archwire fits through. Once the archwire is inserted into the bracket slot, the locking means must be deformed back so that it blocks the insertion again from now on.
• the locking means can move due to its elastic properties to a certain extent automatically due to the formed restoring force back and thus close the insertion opening. In particular, it is possible to repeatedly open and close such a locking means, without thereby the bracket is damaged, as the
• the bracket according to the invention is especially recommended for such treatments, at where a plurality of archwires are used depending on the treatment progress. These can be used particularly easily in succession by means of the bracket according to the invention and removed again.
• an insertion opening thereof is aligned with the bracket such that the insertion of an archwire into the bracket slot is made possible in a direction at least substantially parallel to a vertical axis of the bracket.
• the insertion opening describes an opening of the bracket through which an archwire can be inserted into the bracket slot. It is possible that a bracket has several insertion openings, if, for example, several wire bows are to be used.
• the arc is not - as typically in the prior art - introduced in a direction perpendicular to the tooth surface direction in the Bracketslot, but rather moves in a direction parallel to the tooth surface direction. From this
• bracket has its insertion opening in particular "upwards" or on an upper side, but in any case not on its rear side avoid.
• Tooth surface shows vertical direction.
• bracket slot is bounded on one side surface of the locking means and on an opposite side surface of the bracket base. It is understood that the bracket slot must basically have a plurality of walls that define a space for receiving a respective archwire. At least one of these walls should be from the
• Locking means may be formed so that by a movement of the locking means, this wall can be released to either an archwire in the respective Insert bracket slot or remove it again.
• a particular advantage of this embodiment is that a thickness of the bracket measured perpendicular to a respective tooth surface, despite the bulge
• bracket slot can be comparatively low.
• the smaller dimensions of the bracket according to the invention contribute in particular to an increased wearing comfort and to a lower risk that the respective bracket accidentally detached from the tooth surface due to purchasing power or the like. Nevertheless, the suitability of the bracket designed as an attachment remains the same, since the bracket clearly projects beyond the surface of the respective tooth by means of its bulge.
• a corresponding embodiment of a bracket is particularly well based on the following embodiments.
• the bracket base passes directly into the locking means.
• a transition from the bracket base to the locking means is advantageously formed by a web whose cross section at the thickest point measured at most 50%, preferably at most 40%, more preferably at most 30%, a parallel to the vertical axis of the bracket
• Locking means can be moved or deformed relative to the bracket base, so that the insertion opening for the archwire or the Bracketlot can be expanded and finally released.
• the bracket base has at least one filling area, in which the fastening surface springs back relative to the remaining fastening surface.
• the at least one Verhell Scheme prevented in direct contact between the local portion of the mounting surface and a surface of a respective adjacent tooth. This means that even when applying the bracket to a respective tooth the
• the bracket has at least one edge recess which forms the filling area.
• a filling area is particularly suitable for receiving a connecting means that is suitable for the force-transmitting connection of the bracket to the respective tooth.
• a connecting means is formed by a plastic which is applied in a liquid state to the tooth surface and then cures, so that a force flow between the respective tooth and the bracket is made.
• the filling area has the effect that the respective
• Connecting means may occur in this area and in this way can produce a better bond between the bracket and the tooth.
• the bracket according to the invention is further configured so that a cross-section of the bracket is constant over an entire width of the bracket, measured parallel to a longitudinal axis of the bracket slot, so that all are perpendicular to the longitudinal axis of the bracket
• Bracket slots through the bracket guided cross-sections are identical.
• Such a bracket is particularly easy to manufacture compared to the prior art and in particular requires no complex three-dimensional design.
• a production of such a "two-dimensional" (in terms of always the same cross-sectional profile) bracket is particularly simple. [40] Regardless of the other design of the bracket according to the invention, it can also be of particular advantage if a parallel to a longitudinal axis of the
• Bracket slots measured width of the bracket at least in the range of Bracket Lot at least 1, 5 mm, preferably at least 2 mm, more preferably at least 2.5 mm. It is basically advantageous if a support length of the Bracket slot over which an archwire is continuously supported or sustainable in the bracket slot is at least 1.5 mm, preferably at least 2 mm, more preferably at least 2.5 mm.
• Bracket slots allows to exert a couple of forces on the bracket by means of the archwire. In other words, it is thus possible to transmit a bending moment between the archwire and the respective bracket. For this it is by means of according to the invention, one-piece design of the bracket only necessary to arrange a single bracket on the respective tooth surface and connect to this.
• a particularly advantageous treatment method of tooth misalignments which can be implemented particularly easily, especially by means of the bracket according to the invention, can be designed as follows:
• a method of treating a malocclusion comprising the following
• treated orthodontic device comprising at least one arch wire and a plurality of interacting with the teeth brackets, wherein forces exerted by means of the arch wire forces are transmitted by means of the brackets on the teeth.
• Rail treatment step the tooth misalignment treated by means of a plurality of successively inserted toothed rails, each adapted to a respective present at the moment of insertion tooth position
• Dental rail is brought into engagement with the teeth to be treated, so that a power transmission between at least a portion of a tooth-facing surface of the dental splint and the teeth is possible.
• Brackets are left in engagement with the respective teeth after completion of the clasp treatment step and within the framework of the
• the method can proceed as follows: First, a tooth misalignment is treated with a typical "brace", wherein at least one bracket, preferably a plurality of brackets, is formed by a bracket according to the invention Typically, a large number of different arch wires are used in succession, with each arch causing a certain movement increment of the teeth to be treated The brackets are ideally placed permanently on the respective teeth.A replacement of the brackets does not take place on schedule.An advantage of one of a highly elastic material, in particular one
• Shape memory material, formed brackets consists in the fact that the material of the bracket, in particular the locking means, not fatigued and therefore the
• Insertion opening for the respective arch wire can be expanded as often as desired and “closed” again.
• the last archwire is removed from the brackets, while at least a portion of the brackets remain on the respective teeth.
• at least one dental splint typically a plurality of splints, is now used to effect further movement of the teeth.
• a toothed rail is in each case slipped over the teeth, wherein an inner surface of the toothed rail cooperates with the respective brackets, so that the brackets act as so-called "attachments.”
• the brackets according to the invention therefore fulfill a double function in this treatment, namely first as anchoring means for one or more Wire bows and on the other (in connection) as a transfer element / attachment for a
• the underlying object is achieved in that at least one of the brackets on one of its mounting surface facing away from back in the form of a convex protrusion is formed, the return free over at least 50% of an entire extends parallel to a vertical axis of the respective bracket measured height of the bracket.
• bracket according to the invention can be produced particularly simply by means of the following method according to the invention:
• a bracket is designed virtually using a CAD method.
• bracket is produced by means of a CAM method, wherein the bracket is machined out of a material part in such a way that it is in one piece after completion of the working out and immediately has its final shape.
• At least one virtual bracket is designed that
• a mounting surface (3) of the virtual bracket (1) is at least substantially formed on a corresponding surface of the respective tooth, so that the attachment surface (3) at least substantially over the entire surface of the surface of the each tooth can be applied.
• a corresponding real bracket (1) is machined out of a material part or molded by a 3D printing process, wherein the bracket is present in one piece after completion of the working out or the primary molding and immediately has its final form.
• CAD Computer Aided Design
• CAM Computer Aided Manufac- turing
• 3D printing is understood to mean the layered construction of three-dimensional workpieces. "Such a method generally runs computer-controlled and based on digitally designed models Printing process, especially plastics, resins, ceramics and metals Techniques of 3D printing are selective laser melting, selective laser sintering, stereolithography and fused filament fabrication, the three latter in particular also being used for plastics or even predominantly for plastics. [52] After completion of the procedure, the respective bracket is immediately in its final form. It may only be necessary to release the bracket from a bracket carrier. However, the shape of the bracket itself is not changed here. It is also conceivable that the bracket should possibly be reworked, for example, to remove residues of a 3D printing. In this case, the final shape of the bracket is no longer changed.
• the method according to the invention has many advantages.
• the respective bracket is completed immediately and requires no further extensive editing or assembly. This is a significant difference from the prior art, in which the brackets are in any case composed of several individual parts.
• the one-piece brackets are in any case composed of several individual parts.
• the feeling in the oral cavity for the patient with a "wide bracket” comparatively uncomfortable.
• the Anformung of the mounting surface of the bracket to the respective tooth surface "essentially” describes such a molding, which leads to the real bracket after attachment to the respective tooth at least substantially fully applied to the tooth surface.
• a distance between a respective location of the tooth surface and a nearest location of the mounting surface of the bracket over the entire mounting surface of the bracket away not more than 0.5 mm, preferably not more than 0.4 mm, more preferably not more than 0.3 mm.
• the bracket is machined out of a material part, in particular cut out of a metal sheet, wherein a surface of the metal sheet is oriented parallel to a side face of the later bracket.
• the bracket can preferably be machined out of the material part such that a temporary cutting axis, for example a laser or water jet, runs parallel to a width axis of the bracket or longitudinal axis of the bracket slot.
• Fig. 7 A schematic cross section through a tooth together with a bracket arranged thereon according to the prior art
• Fig. 8 The cross section according to Figure 7, but with an inventive
• Bracket 1 comprising a bracket base 2 and a locking means 5.
• the bracket base 2 and the locking means 5 are by means of a web. 8 directly connected.
• the bracket 1 has on a surface 28, not shown in FIG. 1, of a tooth 27 facing side a mounting surface 3, which is at least indirectly, preferably directly connected to the respective surface 28 in an inserted state of the bracket 1.
• the bracket base 2 in the area facing the surface 28 has a plurality of undercuts which are dovetail-shaped in the example shown. These undercuts each form a filling area 11, which is suitable for receiving a fastening medium by means of which the bracket 1 is fastened to the respective tooth 27.
• brackets 1 it is common practice to attach brackets 1 to a respective tooth 27 by means of a plastic.
• a plastic is applied in a liquid state to the respective surface 28 of the respective tooth 27 and connected to the respective bracket 1.
• the plastic hardens, wherein the curing either happens independently over time or by means of a special treatment, such as a heat treatment, triggered / accelerated.
• the Verhell Schemee 11 serve that the initially liquid plastic enter said Ver Reichll Suitee 11 and then in the course of curing of the plastic can form a particularly durable bond between the respective surface 28 and the bracket 1 according to the invention. [60] It is noticeable that the mounting surface 3 is curved.
• Such an embodiment may be individually adapted to a respective surface 28 of a tooth 27 so that over the entire mounting surface 3, a respective shortest distance of each location of the mounting surface 3 to the corresponding surface 28 in the inserted state of the bracket 1 is not more than 0, 5 mm, preferably not more than 0.4 mm, more preferably not more than 0.3 mm.
• the individual configuration of the attachment surface 3 as a function of the shape and contour of a respective tooth 27 is particularly easy to carry out by means of the manufacturing method according to the invention, wherein the respective tooth 27 is detected individually, for example by means of an intraoral scan, and the bracket 1 is designed as a function of the data thus acquired and finally produced.
• the bracket 1 On a side of the bracket base 2 facing away from the attachment surface 3, the bracket 1 has a bracket slot 4.
• This bracket slot 4 is suitable for receiving an archwire 20 (not shown in FIG. 1) in a form-fitting manner.
• movements of the respective archwire 20 are prevented, which are oriented perpendicular to its longitudinal axis 24, that is, as it were located in the plane of Figure 1.
• the fixation of the archwire 20 within the Bracketlots 4 is mainly effected by means of the locking means 5. This is in a sense designed in the form of a half-pliers, which extends from a lower region of the bracket 1 substantially vertically upwards parallel to the bracket base 2.
• the bracket 1 according to the invention is formed in one piece.
• the locking means 5 and the bracket base 2 are formed directly by the same "piece” and thus, as it were, merely designate different portions of one and the same component.
• the material from which the bracket 1 shown here is formed is a highly elastic material in the form of a shape memory material, namely a nickel-titanium alloy (“Nitinol®”)
• a respective archwire 20 is inserted to a certain extent in a direction parallel to a surface 28 of a tooth 27 facing the bracket 1 in the bracket slot 4.
• a mounting direction of the respective archwire 20 is in the inventive bracket 1 according to Figure 1 oriented at least approximately parallel to a vertical axis 7 of the bracket 1.
• Bracket base 2 is not too thick or too wide.
• a height 9 of the web 8 is less than half of a total height 10 of the bracket 1. It is understood that the bracket 1 as a whole - and consequently also the locking means 5 - would be significantly stiffened if the web 8 of the bracket 1 would have a greater height 9. This greater rigidity of the bracket 1 would also be reflected in that the locking means 5 could not be moved in the same way relative to the bracket base 2 and consequently the insertion opening 6 could be expanded. Therefore, the embodiment shown in the bracket 1 according to the invention is to be evaluated as particularly advantageous. [65] According to the invention, the bracket 1 according to the invention has on its the bracket 1 according to the invention.
• This bulge 12 has initially only a minor function for the function of the bracket 1 as a fastening element for transmitting forces between the respective tooth 27 and the respective archwire 20.
• the bulge 12 serves to continue to use the bracket 1 according to the invention after completion of a treatment step in which the respective teeth to be treated are moved by means of one or more active archwires 20, in the context of a further treatment step using toothed rails.
• Such tooth rails are slipped over the teeth to be treated, wherein a respective toothed rail is dimensioned such that it can not be accurately fitted on the teeth to be treated.
• a pressure forming between the dental splint and the teeth which occurs due to the lack of fit between the two parts, then causes the teeth to be moved relative to each other. It is understood that with skillful design of the toothed rail just such Movements of the teeth can be provoked, which are favorable for the desired treatment success.
• attachment are used, which are applied to a respective tooth surface and serve as a kind of
• Stop element for the respective toothed rail In order to achieve this, the attachments are typically designed so that a stop surface of the same, which in
• the bulge 12 has the effect that it provides a stop surface 22 to which a respective toothed rail can rest.
• the bracket 1 in the region 17 of the bulge 12 has a maximum thickness 13, which is in the example shown in about 1, 5 times as large as an average thickness 19 of the bracket 1 outside of the region 17 of the bulge 12.
• the respective Thickness 13, 19 of the bracket 1 is always measured in a direction perpendicular to the vertical axis 7, wherein a parallel to the vertical axis 7 oriented tangent 18 is used as Be2ugsline on the tooth to be treated facing side of the bracket 1.
• the bulge 12 extends overall over a height which corresponds to approximately 60% of the height 10 of the bracket 1.
• the bracket 1 shown has the particular advantage that the back 30 of the same is formed completely free of jumps. In this way, a respective toothed rail is given no opportunity to retire into a recess area, whereby the removal of the toothed rail considerably impeded, if not prevented.
• the bracket slot 4 of the bracket 1 according to the invention is formed in the example shown on one of its side surfaces 31 of the bracket base 2 and on the opposite side surface 32 of the locking means 5.
• a second embodiment shown in FIG. 2 comprises
• the bracket 1 according to the second embodiment differs from the bracket 1 according to the first
• a mounting direction of an archwire to be inserted into the bracket slot 4 of the bracket 1 is not at least substantially parallel to the bracket as in the case of the bracket 1 according to the first exemplary embodiment
• Vertical axis 7 of the bracket 1 is oriented, but substantially perpendicular thereto.
• the second bracket 1 effectively has two locking means 5, each defining one side of the bracket slot 4.
• the locking means 5 are each connected by means of a web 8 with the bracket base 2.
• the bracket slot 4 is not limited in common by the Verriegelungsmittei 5 and the bracket base 2, but by means of two
• bracket base 2 in the example shown does not come into direct contact with a respective archwire inserted into the bracket slot 4.
• the operation of the second inventive bracket 1 is very similar to the operation of the first bracket 1.
• the bracket 1 according to the invention has a bulge 12.
• the webs 8 of the locking means 5 each have such a height 9, which allows the locking means 5 relative to the bracket base 2 and in particular to move elastically relative to each other, so that a respective archwire 20 introduced by means of expansion of the insertion opening 6 in the Bracketlot 4 can be. Due to the elasticity of the material, it is also readily possible to remove the respective archwire 20 again from the bracket slot 4 and, for example, to insert another archwire 20. In other words, the bracket 1 is reusable as often as desired.
• the second bracket 1 according to the invention also has the bulge 12 according to the invention, which is formed on the locking means 5.
• a region 17 of the bulge 12 is a maximum thickness 13 of the bracket 1 here in about 1, 5 times as large as a thickness 19 outside the region 17 of the bulge 12.
• the bulge is also used here, the
• Bracket 1 according to the invention can be used as part of a treatment step using a dental splint in function of a transfer element or attachment.
• Bracket base 2 via a mounting portion 25 on which the mounting surface 3 of the bracket 1 is formed.
• the attachment portion 25 is in turn connected by a web 23 to the rest of the bracket base 2, so that a certain elastic deformation between the attachment portion 25 and the remaining bracket base 2 is possible. This is of particular advantage insofar as the attachment portion 25 together with his
• a third embodiment which is shown in FIG. 3, shows another bracket 1 according to the invention.
• the associated bracket slot 4 is comparable to the first exemplary embodiment to one side by means of the locking means 5 and to the other side by means of the bracket base 2 edged.
• the functionality of the bracket 1 shown is similar to those of the two aforementioned embodiments, in which case comparable to the bracket 1 according to the first embodiment, an archwire 20 in vertical, that is parallel to the vertical axis 7 of the bracket 1 direction in the Bracketslot 4 is inserted.
• the third exemplary embodiment shows that the individual design of a particular bracket according to the invention can be very different without losing the technical advantages of the claimed feature combination.
• the bulge 12 according to the invention extends here approximately over 50% of the height 10 of the bracket 1.
• brackets 1 are furthermore evident from FIGS. 4 to 6. From these views, it can be seen, in particular, that the individual brackets 1 each have a width 15 which, as it were, extends in a direction parallel to a longitudinal axis 24 of a respective archwire 20 extends.
• the width 15 of a respective bracket 1 typically correlates directly with a support length 16, over which a respective archwire 20 is guided in the bracket slot 4 of the respective bracket 1.
• the width 15 of the brackets shown 1 and the support length 16 for the respective archwire 20 of identical extent.
• bracket 1 is basically independent of which geometry or cross-sectional shape has a respective archwire 20.
• inventive bracket 1 since this has an unusually large width 15. This is about 2.5 mm here.
• the support length 16 of the associated bracket 1 is 2.5 mm.
• Such a large support length 16 is particularly well suited to reliably support a respective archwire 20 and in this way to produce a particularly good force transmission between the archwire 20 and the respective bracket 1.
• FIGS. 7 and 8 show a bracket 1 according to the invention.
• the illustrations each have a purely schematic character and merely serve to illustrate the advantage of the individual design of a mounting surface 3 of a bracket 1.
• a bracket 26 must be adapted to the associated tooth 27 or its surface 28 by means of a comparatively thick fastening layer 29.
• the mounting surface 3 of the known bracket 26 is
• the attachment surface 3 is formed by means of a mounting surface 29 to the surface 28 of the tooth 27.
• the bracket 26 is at a comparatively large distance from the tooth 27 and is therefore subject to a high action of forces, in particular chewing forces. This often results in a corresponding bracket 26 tearing off the surface 28 of the tooth 27.
• the attachment surface 3 can be adapted individually to the surface 28 of the tooth 27.
• the bracket 1 of the invention is very close to the Surface 28, the attachment layer 29 is formed very thin.
• the bracket 1 according to the invention protrudes significantly less into the oral cavity and hinders the patient less when chewing.
• the bracket 1 feels much more comfortable compared to that of the prior art because it leaves less foreign matter impression.

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

Applications Claiming Priority (2)

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• 2016
  • 2016-06-02 DE DE102016110161.3A patent/DE102016110161A1/de active Pending
• 2017
  • 2017-05-31 EP EP17728140.9A patent/EP3463171A2/de not_active Withdrawn
  • 2017-05-31 WO PCT/EP2017/063217 patent/WO2017207665A2/de unknown
  • 2017-05-31 JP JP2018563036A patent/JP2019517318A/ja active Pending
  • 2017-05-31 KR KR1020187037830A patent/KR20190015375A/ko not_active Application Discontinuation
  • 2017-05-31 CN CN201780044142.XA patent/CN109475391A/zh active Pending
• 2018
  • 2018-11-20 US US16/197,254 patent/US20190090989A1/en not_active Abandoned

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