Invisible appliance assembly and installation method and application thereof

Abstract

The invention provides an invisible orthodontic appliance assembly and a mounting method and application thereof, the invisible orthodontic appliance assembly is used for treating twisted teeth, and the invisible orthodontic appliance assembly comprises an invisible orthodontic tooth socket at least comprising a twisted tooth part, a first adjacent tooth part and a second adjacent tooth part; a local grinding area is arranged at the torsion tooth part, and the surface of the torsion tooth is exposed; the torsion tooth correction assembly comprises a self-ligating bracket, a first arch tube, a second arch tube and an arch wire, wherein the self-ligating bracket is fixed on the surface of a torsion tooth; the first arch tube is arranged on the surface of the first adjacent tooth part, and the second arch tube is arranged on the surface of the second adjacent tooth part; the arch wire comprises a fixed end and a free end, the fixed end is fixed in the first arch tube, and the free end is accommodated in the second arch tube; the middle part of the arch wire is fixed in the self-ligating bracket to form a locking state, and the resilience force generated by the deformed arch wire is used for correcting the twisted teeth. Through the synergistic effect of the invisible orthodontic tooth socket, the self-ligating bracket, the arch tube and the arch wire, efficient orthodontic of twisted teeth is realized.

Description

Technical Field

[0001] The present invention relates to the field of oral orthodontics, and in particular to an invisible appliance assembly, an installation method thereof, and uses thereof. Background Art

[0002] In the clinical treatment of malocclusion, tooth rotation correction is a key and challenging issue in orthodontics. Epidemiological surveys show that the incidence of tooth rotation in malocclusion patients is as high as 61.3%. This deformity manifests as abnormal rotation of the tooth around its long axis (the anatomical axis from the crown to the root apex), which not only affects facial aesthetics and oral function, but long-term uncorrected tooth rotation can also induce complications such as temporomandibular joint disorder and periodontal tissue damage due to occlusal interference, seriously affecting the patient's quality of life.

[0003] The bracketless invisible orthodontic technology currently widely used in clinical practice has become the preferred option for mild to moderate tooth movement cases due to its advantages in removability, aesthetics and comfort. Studies have shown that invisible braces perform well in treatment scenarios such as molar distalization and mild dental crowding, and their tooth movement efficiency can reach more than 80%. However, for severely twisted teeth (rotation angle > 30°), the correction effect of invisible braces is significantly limited. Clinical data show that the average torsion correction efficiency of invisible braces technology for severely twisted teeth is only 56.72%. Especially in the case of abnormal tooth anatomical morphology (such as short crowns and large tooth inclination), the fit between the invisible braces and the tooth surface is significantly reduced, and the contact surface between the invisible braces and the twisted teeth is prone to slippage, unable to form effective constraints, and the direction of the correction force is offset, which makes it difficult to fully transmit the correction force to the twisted teeth, thereby reducing the torsion correction efficiency. Summary of the Invention

[0004] The purpose of the present invention is to provide an invisible braces assembly with higher torsional correction efficiency, which utilizes the synergistic effect between invisible braces and the torsional braces assembly to achieve personalized and efficient treatment of twisted teeth while improving the patient's treatment comfort.

[0005] In order to achieve the above-mentioned object, the present invention provides an invisible braces assembly for treating a twisted tooth, wherein the twisted tooth has two adjacent sides including a first adjacent tooth and a second adjacent tooth, the first adjacent tooth and the twisted tooth being on the same side of the correction movement path, comprising:

[0006] Invisible braces, the invisible braces at least comprising a twisted tooth portion, a first adjacent tooth portion and a second adjacent tooth portion; a local grinding area is provided in the twisted tooth portion to expose the twisted tooth surface;

[0007] Tooth rotation correction component, the tooth rotation correction component includes a self-locking bracket, a first arch tube, a second arch tube, and an arch wire; wherein, the self-locking bracket is fixed on the surface of the rotated tooth; the first arch tube is arranged on the surface of the corresponding position of the first adjacent tooth invisible orthodontic appliance, and the second arch tube is arranged on the surface of the corresponding position of the second adjacent tooth appliance; the arch wire includes a fixed end and a free end, the fixed end is fixed inside the first arch tube, and the free end is received inside the second arch tube; the middle part of the arch wire is fixed inside the self-locking bracket to form a locked state, the arch wire undergoes elastic deformation, and uses its good resilience to generate a resilience force on the self-locking bracket, and further transmits it to the tooth to correct the rotated tooth.

[0008] Optionally, the self-locking bracket is provided with a bracket base, an arch wire receiving groove, and a sliding locking assembly; the bracket base is fixedly connected to the arch wire receiving groove; the arch wire receiving groove extends in the mesiodistal direction for receiving the arch wire; the sliding locking assembly is arranged at the top of the arch wire receiving groove and is slidably connected to the top of the arch wire receiving groove for fixing or releasing the arch wire in the arch wire receiving groove.

[0009] Optionally, the self-locking bracket is arranged on the buccal surface of the rotated tooth; both the first arch tube and the second arch tube are arranged on the buccal surface of the invisible orthodontic appliance.

[0010] Optionally, the self-locking bracket is arranged on the lingual-palatal surface of the rotated tooth; both the first arch tube and the second arch tube are arranged on the lingual-palatal surface of the invisible orthodontic appliance.

[0011] Optionally, the first arch tube and the second arch tube are integrally formed with the invisible orthodontic appliance.

[0012] Optionally, the material of the arch wire is nitinol alloy and has resilience.

[0013] The present invention also provides an installation method for an invisible orthodontic appliance component, including:

[0014] Step 1, providing an above-mentioned invisible orthodontic appliance component, which includes an invisible orthodontic appliance and a tooth rotation correction component; the invisible orthodontic appliance at least includes a rotated tooth part, a first adjacent tooth part, and a second adjacent tooth part; the tooth rotation correction component includes a self-locking bracket, a first arch tube, a second arch tube, and an arch wire; the first arch tube is arranged on the surface of the first adjacent tooth part, and the second arch tube is arranged on the surface of the second adjacent tooth part;

[0015] Step 2, locally grinding the surface of the rotated tooth part of the invisible orthodontic appliance to form a locally ground area, exposing the surface of the rotated tooth;

[0016] Step 3, bonding the self-locking bracket on the surface of the rotated tooth;

[0017] Step 4: Fix one end of the arch wire inside the first arch tube, and insert the other end of the arch wire into the second arch tube.

[0018] Step 5: Fix the middle part of the arch wire inside the self-ligating bracket to form a locked state.

[0019] Optionally, in Step 4, the other end of the arch wire protrudes 3 mm to 5 mm out of the second arch tube.

[0020] Optionally, the installation method further includes: Step 6: After fixing the middle part of the arch wire inside the self-ligating bracket, cut off the part of the arch wire extending outside the second arch tube.

[0021] The present invention also provides a use of the above-mentioned invisible orthodontic appliance assembly. The invisible orthodontic appliance assembly is used for treating severely rotated teeth. The severely rotated teeth rotate counterclockwise or clockwise around their tooth long axes, and the rotation angle exceeds 30°.

[0022] Compared with the prior art, the technical solution of the present invention has at least the following beneficial effects:

[0023] The invisible orthodontic appliance assembly provided by the present invention includes an invisible orthodontic tray and a rotated tooth correction assembly. The opening position of the rotated tooth correction assembly can be customized according to the actual position of the patient's rotated teeth, so as to realize personalized and efficient correction of rotated teeth during the tooth correction process, especially to realize efficient correction of severely rotated teeth. The rotated tooth correction assembly includes a self-ligating bracket, a first arch tube, a second arch tube, and an arch wire; the self-ligating bracket is fixed on the surface of the rotated tooth, the fixed end of the arch wire is fixed inside the first arch tube, the first arch tube is on the same side as the correction direction of the rotated tooth, and the free end of the arch wire is accommodated inside the second arch tube; when the middle part of the arch wire is locked inside the self-ligating bracket, the arch wire is twisted, undergoes elastic deformation, and generates a continuous resilience force towards the first arch tube direction, thereby pulling the rotated tooth to move towards the correction direction (the first arch tube direction). Compared with the traditional invisible orthodontic appliance, faster correction is achieved; at the same time, the invisible orthodontic tray will exert a limiting and restraining effect on the adjacent teeth on both sides of the rotated tooth, so that the adjacent teeth on both sides will not undergo undesired rotation due to the correction of the rotated tooth.

[0024] Furthermore, compared with the prior art in which traction buttons are adhesively bonded locally to the rotated tooth and adjacent teeth and elastic chains are used for interactive traction, in the invisible orthodontic appliance assembly provided by the present invention, the area of the invisible orthodontic tray that needs to be ground is reduced, the number of additional components (traction buttons) that need to be adhesively bonded is reduced, and elastic chains are not required, simplifying the clinical operation process and greatly improving the wearing comfort of patients.

[0025] Furthermore, the invisible orthodontic appliance assembly provided by the present invention does not require the overall replacement of the orthodontic device during the treatment process. It only needs to be worn once, and the orthodontic deviation can be compensated by finely adjusting the degree of deformation of the arch wire between the arch tube and the self-locking bracket. The clinical operation is simple, and it can achieve real-time correction of the orthodontic force, reducing the risk of restarting the treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 FIG. is a top view of an existing assembly for orthodontically treating a rotated tooth by adhesively attaching traction buttons to the rotated tooth and the adjacent teeth locally and using an elastic chain for interactive traction.

[0027] Figure 2 FIG. is a schematic structural view of an invisible orthodontic appliance assembly of the present invention.

[0028] Figure 3 FIG. is a schematic view of a self-locking bracket adhesively attached to the surface of a rotated tooth of the present invention.

[0029] Figure 4 FIG. is a schematic structural view of a self-locking bracket of the present invention; wherein, a represents the self-locking bracket in the unlocked state, b represents the self-locking bracket in the locked state, and c represents a side view of the self-locking bracket in the locked state.

[0030] Figure 5 FIG. is a schematic view of an invisible orthodontic appliance assembly of the present invention worn on a patient's teeth.

[0031] Figure 6 FIG. is a top view of a rotated tooth orthodontic assembly provided on the buccal surface of an invisible orthodontic appliance of the present invention.

[0032] REFERENCE SIGNS:

[0033] Rotated tooth 10,

[0034] Adhesive area 11,

[0035] First adjacent tooth 12,

[0036] Second adjacent tooth 13,

[0037] Invisible orthodontic appliance 20,

[0038] Rotated tooth area 21,

[0039] First adjacent tooth area 22,

[0040] Second adjacent tooth area 23, [[ID=5x4]]

[0041] Rotated tooth orthodontic assembly 30,

[0042] Self-locking bracket 31,

[0043] Bracket base 311,

[0044] Arch wire receiving groove 312,

[0045] First working wing 3121,

[0046] Second working wing 3122,

[0047] Sliding locking member 313,

[0048] Arch wire 32,

[0049] First arch tube 33,

[0050] Second arch tube 34. Detailed implementation mode

[0051] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work shall fall within the protection scope of the present invention.

[0052] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0053] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0054] The "severely rotated tooth" described herein refers to a tooth that rotates counterclockwise or clockwise around its tooth long axis and the rotation angle exceeds 30°.

[0055] The "tooth crown" described herein refers to the part of the tooth exposed in the oral cavity.

[0056] The "tooth root" described herein refers to the part of the tooth buried in the alveolar bone.

[0057] As used herein, "mesial" refers to the direction of a tooth closer to the midline, and "distal" refers to the direction of a tooth farther from the midline; the midline is an imaginary vertical line that divides the craniofacial region into two equal left and right parts, passing through the area between the two eyes, the tip of the nose, and the contact areas of the two maxillary central incisors.

[0058] As used herein, the "mesiodistal direction" refers to the direction along the arc of the dental arch. The dental arch refers to the arcuate structure formed by the natural arrangement of the maxillary and mandibular teeth.

[0059] As used herein, "buccal" refers to the tooth surface closer to the cheek or the outer side of the oral cavity.

[0060] As used herein, "lingual / palatal" refers to the tooth surfaces of the maxillary and mandibular teeth closer to the inner side of the oral cavity (the tongue or the palate).

[0061] As described in the background art, the current invisible orthodontic technology has obvious deficiencies in the treatment of rotated teeth. There is no good contact between the invisible orthodontic appliance (invisible orthodontic tray) and the severely rotated teeth, resulting in difficulty in fully transmitting the orthodontic force to the rotated teeth and a significant reduction in the efficiency of rotation correction.

[0062] Various improvement schemes have been tried to solve the above defects. As one of the improvement schemes, to compensate for the orthodontic deviation, a 20% - 30% overcorrection amount is preset for the invisible orthodontic appliance in the digital design stage in clinical practice to ensure sufficient orthodontic force. However, on the one hand, the actual tooth movement trajectory often deviates from the simulated prediction (the average error reaches 15%), forcing the doctor to re-take impressions, design a new plan, and fabricate a new orthodontic appliance, resulting in an increase in the treatment restart rate to 35%, significantly prolonging the treatment course and increasing the risk of root resorption; on the other hand, clinical studies have shown that the maximum amount of rotation that a single invisible orthodontic appliance can achieve during its treatment stage is only 2°, and the orthodontic speed is limited. As another improvement scheme, see Figure 1 , at the corresponding positions of the invisible orthodontic appliance (not shown in the figure) on the buccal and lingual / palatal sides of the rotated tooth 10 and its adjacent two teeth (adjacent teeth) on both sides, the invisible orthodontic appliance is ground, and at least two groups of traction buttons 50 are bonded to the buccal and lingual / palatal tooth surfaces of the rotated tooth 10 and its adjacent teeth. A couple force is formed by traction between the traction buttons 50 on the same side through a rubber chain 40 to correct the rotation. The defect of this scheme is that a relatively large number of additional traction devices need to be adhesively bonded, and the rubber chain 40 needs to be frequently replaced to form the target orthodontic force on the rotated tooth 10, resulting in cumbersome clinical operations. At the same time, the rubber chain 40 and the traction buttons 50 are likely to cause irritation to the oral mucosa, significantly reducing the treatment comfort of the patient. Figure 1 The arrow direction in indicates the direction of the force acting on the rotated tooth 10 to move.

[0063] To solve the above technical problems, the present invention provides an invisible orthodontic appliance assembly for treating rotated teeth, including an invisible orthodontic appliance and a rotated tooth correction assembly. The rotated tooth correction assembly includes a self-locking bracket, a first arch tube, a second arch tube, and an arch wire. The self-locking bracket is fixed on the surface of the rotated tooth. The first arch tube and the second arch tube are respectively arranged on the corresponding positions of the adjacent teeth on both sides of the rotated tooth on the surface of the invisible orthodontic appliance, and the position of the first arch tube is on the same side as the correction movement path of the rotated tooth. After locking the middle part of the arch wire into the self-locking bracket, the arch wire is in a twisted state, undergoes elastic deformation and generates a resilience force. The resilience force of the arch wire is transmitted to the rotated tooth through the self-locking bracket, thereby applying a traction force to the rotated tooth and efficiently correcting the rotated tooth. At the same time, due to the simplicity of the rotated tooth correction assembly of the present invention, the treatment comfort of the patient is also improved. During the treatment process, the doctor can, according to the rotation conditions of different rotated teeth, after taking out the middle part of the arch wire from the self-locking bracket, control the resilience force of the arch wire and directly adjust the magnitude of the correction force by bending the arch wire to adjust the angle of the arch wire entering the slot or finely adjusting the position of the self-locking bracket bonded to the tooth surface of the rotated tooth, without replacing the entire invisible orthodontic assembly or restarting the treatment, greatly improving the treatment efficiency.

[0064] The following is a detailed description with reference to the accompanying drawings.

[0065] As Figures 2 to 5 shown, the present invention provides an invisible orthodontic appliance assembly for treating rotated teeth. The adjacent sides of the rotated tooth 10 include a first adjacent tooth 12 and a second adjacent tooth 13, and the first adjacent tooth 12 is on the same side as the correction movement path of the rotated tooth 10. As an example, when the rotated tooth 10 undergoes mesial rotation (the tooth crown deviates towards the midline direction), the first adjacent tooth 12 is the distal adjacent tooth of the rotated tooth, and the second adjacent tooth 13 is the mesial adjacent tooth of the rotated tooth 10. See Figure 5 . The invisible orthodontic appliance assembly includes an invisible orthodontic appliance 20 and a rotated tooth correction assembly 30.

[0066] In this embodiment, the invisible orthodontic appliance 20 at least includes a rotated tooth part 21, a first adjacent tooth part 22, and a second adjacent tooth part 23. The rotated tooth part 21 refers to the corresponding position of the rotated tooth 10 on the invisible orthodontic appliance 20, the first adjacent tooth part 22 refers to the corresponding position of the first adjacent tooth 12 on the invisible orthodontic appliance 20, and the second adjacent tooth part 23 refers to the corresponding position of the second adjacent tooth 13 on the invisible orthodontic appliance 20. The invisible orthodontic appliance 20 has a local grinding area opened at the rotated tooth part 21, exposing the surface of the rotated tooth 10.

[0067] The rotated tooth correction assembly 30 includes a self-locking bracket 31, an arch wire 32, a first arch tube 33, and a second arch tube 34, where:

[0068] The self-locking bracket 31 is fixed on the surface of the rotated tooth 10, and the local grinding area of the invisible aligner 20 exposes the self-locking bracket 31. In some embodiments, the bonding area 11 on the surface of the rotated tooth 10 is locally etched to increase the surface roughness, and then the bottom of the self-locking bracket 31 is bonded to the surface of the rotated tooth 10 by using an adhesive. Refer to Figure 3 . As Figure 4 shown in a to c of Figure 4 , the self-locking bracket 31 includes a bracket base 311, an arch wire receiving groove 312, and a sliding locking member 313. Among them, the bracket base 311 is fixedly connected to the arch wire receiving groove 312; the arch wire receiving groove 312 extends in the mesiodistal direction and is used to receive the arch wire 32. First working wings 3121 and second working wings 3122 are provided on both sides of the arch wire receiving groove 312, and the groove size of the arch wire receiving groove 312 matches the diameter of the arch wire 32. As an example, a chute (not shown in the figure) is provided on the first working wing 3121 of the arch wire receiving groove; the sliding locking member 313 is slidably connected to the chute of the first working wing 3121 and can slide in a direction perpendicular to the arch wire receiving groove 312 to fix or release the arch wire 32 in the arch wire receiving groove 312. Specifically, as Figure 4 shown in a of

[0069] , at this time, the self-locking bracket 31 is in an unlocked state, the sliding locking member 313 is in the unlocked position, the groove of the arch wire receiving groove 312 is open, and the arch wire 32 can be inserted into or taken out of the arch wire receiving groove 312; as Figure 2 and Figure 5 shown in b of

[0070] , at this time, the self-locking bracket 32 is in a locked state, the sliding locking member 313 is in the locked position. By pushing the sliding locking member 313 from the unlocked position towards the second working wing 3122, the sliding locking member 313 can cover the groove opening of the arch wire receiving groove 312 and make the sliding locking member 313 engage with the second working wing 3122 of the arch wire receiving groove 312. At this time, the lower surface of the sliding locking member 313 applies an extrusion force to the arch wire 32 to fix the arch wire 32. The first arch tube 33 is provided on the surface of the first adjacent tooth part 22, and the second arch tube 34 is provided on the surface of the second adjacent tooth part 23. Refer to Figure 2 and Figure 5 . In some embodiments, the first arch tube 33 and the second arch tube 34 are respectively movably connected to the surface of the first adjacent tooth part 22 and the surface of the second adjacent tooth part 23 so as to be replaced or removed according to the orthodontic situation. In other embodiments, the first arch tube 33 and the second arch tube 34 are integrally formed with the invisible orthodontic tray 20 to reduce the clinical operation time.

[0070] The archwire 32 includes a fixed end and a free end. The fixed end is fixed inside the first arch tube 33. The middle portion of the archwire 32 is fixed in the groove of the archwire receiving slot 312, forming a locked state, so that the deformed archwire generates a traction force on the self-ligating bracket, which is used to correct the twisted tooth 10. The free end is freely received inside the second arch tube 34. The first arch tube 33 is used to control the rebound direction of the archwire 32. The second arch tube 34 is used to accommodate the free end of the archwire 32. In some embodiments, the archwire 32 is made of nickel-titanium alloy, which generates correction force through its good resilience.

[0071] The correction principle of the invisible braces assembly provided by the present invention is: since the twisted tooth 10 is not in the correct position, when the middle part of the arch wire 32 is fixed inside the self-locking bracket 31 on the surface of the twisted tooth 10, a locked state is formed, and the arch wire 32 is bent and elastically deformed. Since the fixed end of the arch wire 32 is fixed inside the first arch tube 33, the arch wire generates a rebound force in the direction of the first arch tube 33 after elastic deformation, thereby utilizing the rebound force of the arch wire 32 to pull the crooked twisted tooth 10 to rotate in the correction direction (the direction of the first arch tube 33), so that it quickly returns to its normal position.

[0072] In some embodiments, the self-locking bracket 31 is bonded to the buccal surface of the twisted tooth 10, and the first arch tube 33 and the second arch tube 34 are both provided on the buccal surface of the invisible braces 20, see Figure 6 In other embodiments, in order to meet the patient's aesthetic requirements, the self-ligating bracket 31 is bonded to the lingual and palatal surfaces of the twisted tooth 10. At the same time, the first arch tube 33 and the second arch tube 34 are both provided on the lingual and palatal surfaces of the invisible braces 20, thereby achieving more concealed treatment.

[0073] Taking the installation of a twist correction component on the buccal surface of the twisted tooth and invisible braces as an example, the installation method of the invisible brace component provided by the present invention includes:

[0074] Step S1, performing local grinding on the buccal area of the invisible brace surface corresponding to the twisted tooth (the twisted tooth location) to form a local grinding area, exposing the buccal surface of the twisted tooth;

[0075] Step S2, bonding a self-ligating bracket to the buccal surface of the twisted tooth;

[0076] Step S3, fixing one end of the arch wire inside the first arch tube, and inserting the other end into the second arch tube;

[0077] Step S4: fix the middle portion of the arch wire in the self-ligating bracket to form a locked state.

[0078] After the installation of the invisible orthodontic appliance component, during the orthodontic treatment process, the resilience of the arch wire is utilized to generate a traction force, which is transmitted to the rotated tooth through the self-locking bracket, thereby causing the rotated tooth to move under force.

[0079] In order to prevent the arch wire from being too short to be fixed inside the self-locking bracket, in some embodiments, it is required that the length of the arch wire can protrude 3 mm to 5 mm from the second arch tube in the step S3. After the arch wire is fixed to the self-locking bracket, it is in a twisted shape, and the part of the arch wire extending out of the second arch tube retracts inside the second arch tube. In some embodiments, the installation method further includes step S5: after fixing the middle part of the arch wire inside the self-locking bracket, cut off the part of the arch wire extending outside the second arch tube.

[0080] It is worth mentioning that the invisible orthodontic appliance component provided by the present invention greatly simplifies the orthodontic process of rotated teeth. After orthodontic treatment for a period of time, if the resilience of the arch wire is insufficient or excessive, the doctor can unlock the self-locking bracket and bend a curve of appropriate size (such as omega loop, coil spring, vertical loop, T-loop, box loop, etc.) on the arch wire to adjust the angle of the arch wire entering the bracket, or slightly adjust the position of the self-locking bracket bonded to the tooth surface of the rotated tooth, and then fix (lock) the arch wire inside the self-locking bracket, directly changing the deformation size of the arch wire after entering the bracket, so as to adjust the resilience of the arch wire to an appropriate orthodontic force size, simplifying the cumbersome clinical operations caused by the need to re-design the invisible orthodontic appliance component or replace the elastic chain to adjust the orthodontic force in the traditional orthodontic process, and is especially suitable for the orthodontic treatment of severely rotated teeth.

[0081] Moreover, in the invisible orthodontic appliance component provided by the present invention, the invisible orthodontic tray and the rotated tooth orthodontic component act synergistically. When the rotated tooth orthodontic component performs traction orthodontics on the rotated tooth, the invisible orthodontic tray plays a good limiting and constraining role on the adjacent teeth (the first adjacent tooth and the second adjacent tooth) of the rotated tooth. Since when correcting the rotated tooth, its adjacent teeth on both sides are still wrapped inside the invisible orthodontic tray, the invisible orthodontic tray can keep or guide the adjacent teeth on both sides of the rotated tooth in an ideal position without being affected by the movement of the rotated tooth and undergoing an undesired position shift.

[0082] In summary, the present invention provides a personalized adaptable invisible orthodontic appliance assembly, comprising an invisible orthodontic tray and a torsiversion tooth correction assembly, which realizes efficient correction of torsiversion teeth through the synergistic action of the invisible orthodontic tray, self-locking brackets, arch tubes and arch wires. The self-locking brackets are fixed on the surface of the torsiversion teeth. The fixed end of the arch wire is fixed to the first arch tube on the same side of the correction movement path, and the free end extends to the second arch tube. After the middle part of the arch wire is locked into the bracket, the arch wire generates elastic deformation, forming a continuous resilience force towards the first arch tube direction, and traction the torsiversion teeth to be efficiently reset. The invisible orthodontic tray forms a limit constraint on adjacent teeth to avoid correction interference. This solution breakthroughly reduces the grinding area of the appliance, abandons the traction button and chain structure, and only needs to be worn once to adjust the arch wire length in real time to correct the correction force, simplifies the clinical operation steps, and significantly improves the patient's comfort.

[0083] Although the content of the present invention has been introduced in detail through the above preferred embodiments, it should be recognized that the above description should not be considered as a limitation of the present invention. After those skilled in the art have read the above content, various modifications and alternatives to the present invention will be obvious. Therefore, the protection scope of the present invention should be defined by the appended claims.

Claims

1. An invisible orthodontic appliance assembly for treating rotated teeth, wherein the adjacent sides of the rotated teeth include a first adjacent tooth and a second adjacent tooth, and the first adjacent tooth is on the same side as the orthodontic movement path of the rotated tooth, characterized in that, Comprising: An invisible orthodontic appliance, the invisible orthodontic appliance at least comprising a rotated tooth portion, a first adjacent tooth portion and a second adjacent tooth portion; a local grinding area is provided in the rotated tooth portion to expose the surface of the rotated tooth; A rotated tooth correction assembly, the rotated tooth correction assembly comprising a self-locking bracket, a first arch tube, a second arch tube and an arch wire; wherein, the self-locking bracket is fixed on the surface of the rotated tooth; the first arch tube is arranged on the surface of the first adjacent tooth portion, and the second arch tube is arranged on the surface of the second adjacent tooth portion; the arch wire comprises a fixed end and a free end, the fixed end is fixed inside the first arch tube, and the free end is accommodated inside the second arch tube; the middle part of the arch wire is fixed inside the self-locking bracket to form a locked state, and the deformed arch wire generates a traction force on the self-locking bracket for correcting the rotated tooth.

2. The invisible orthodontic appliance assembly according to claim 1, wherein The self-locking bracket is provided with a bracket base, an arch wire accommodating groove and a sliding locking assembly; the bracket base is fixedly connected with the arch wire accommodating groove; the arch wire accommodating groove extends along the mesiodistal direction for accommodating the arch wire; the sliding locking assembly is arranged at the top of the arch wire accommodating groove and is slidably connected with the top of the arch wire accommodating groove for fixing or releasing the arch wire in the arch wire accommodating groove.

3. The invisible orthodontic appliance assembly according to claim 1, wherein, The self-locking bracket is arranged on the buccal surface of the rotated tooth; the first arch tube and the second arch tube are both arranged on the buccal surface of the invisible orthodontic appliance.

4. The invisible orthodontic appliance assembly according to claim 1, wherein The self-locking bracket is arranged on the lingual-palatal surface of the rotated tooth; the first arch tube and the second arch tube are both arranged on the lingual-palatal surface of the invisible orthodontic appliance.

5. The invisible orthodontic appliance assembly according to claim 1, wherein, The first arch tube and the second arch tube are integrally formed with the invisible orthodontic appliance.

6. The invisible orthodontic appliance assembly according to claim 1, wherein The material of the arch wire is nitinol alloy and has resilience.

7. A method for installing an invisible orthodontic appliance component, characterized in that, Including: Step 1, providing an invisible orthodontic appliance assembly as described in any one of claims 1 to 6, which comprises an invisible orthodontic appliance and a rotated tooth correction assembly; the invisible orthodontic appliance at least comprises a rotated tooth portion, a first adjacent tooth portion and a second adjacent tooth portion; The rotated tooth correction assembly comprises a self-locking bracket, a first arch tube, a second arch tube and an arch wire; the first arch tube is arranged on the surface of the first adjacent tooth portion, and the second arch tube is arranged on the surface of the second adjacent tooth portion; Step 2, locally grinding the surface of the rotated tooth portion of the invisible orthodontic appliance to form a local grinding area to expose the surface of the rotated tooth; Step 3, bonding the self-locking bracket on the surface of the rotated tooth; Step 4, fixing one end of the arch wire inside the first arch tube, and threading the other end of the arch wire into the second arch tube; Step 5, fixing the middle part of the arch wire inside the self-locking bracket to form a locked state.

8. The installation method of the invisible orthodontic appliance assembly according to claim 7, characterized in that, In step 4, the other end of the arch wire protrudes 3 mm to 5 mm out of the second arch tube.

9. The installation method of the invisible orthodontic appliance assembly according to claim 8, wherein It further comprises: Step 6, after fixing the middle part of the arch wire inside the self-locking bracket, cutting off the part of the arch wire extending out of the second arch tube.

10. Use of an invisible orthodontic appliance assembly according to any one of claims 1 to 6, characterized in that, The invisible orthodontic appliance assembly is used for correcting severely rotated teeth, and the severely rotated teeth are teeth that rotate counterclockwise or clockwise around their tooth long axis and the rotation angle exceeds 30°.

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