A removable Twin Block orthodontic appliance with an expanding bow.

Abstract

The utility model discloses a kind of expansion arch, removable Twin block appliance, including maxillary expansion arch, maxillary palatal pad and mandibular appliance;Maxillary expansion arch includes first connecting plate, second connecting plate and screw spring assembly, screw spring assembly is connected with the first end of first connecting plate, the first end of second connecting plate respectively, and the included angle between first connecting plate and second connecting plate is greater than 90 degrees;Maxillary palatal pad is connected with the second end of first connecting plate, the second end of second connecting plate respectively.The utility model makes maxillary palatal pad respectively with first connecting plate, second connecting plate can be detachably connected, the installation and disassembly of maxillary palatal pad are facilitated, pronunciation is avoided by palatal side thick heavy base plate influence and avoid the influence of movable appliance to children pronunciation, expression, and language learning, make more comfortable to wear, patient is easily accepted.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and more specifically, to an expander, removable Twin Block orthodontic appliance. Background Technology

[0002] Early intervention has always been a hot topic in orthodontic clinical treatment, and mandibular retrusion is a typical and prevalent malocclusion in my country. Orthodontists correct mandibular retrusion by contacting the narrow upper dental arch and guiding the mandible forward. The Twin Block is currently the most widely used mandibular forward-guiding appliance in clinical practice, with proven effectiveness. Clinically, it is often used in conjunction with the maxillary spiral expander. The Twin Block combined with the maxillary expander is available in fixed and removable versions. The removable appliance is more comfortable and easier for patients to accept, and can be removed in situations requiring vocalization or when eating is difficult.

[0003] However, the expansion effect of removable orthodontic appliances is not ideal. The reasons are as follows: First, compared to fixed metal braces, the base of removable orthodontic appliances has significantly less expansion force; second, the expansion effect of removable appliances depends entirely on patient compliance, and the expanded coil springs often retract during removal and removal; third, removable expanders produce more buccal tilting, and cannot achieve the same precise three-dimensional control of tooth movement as fixed orthodontic appliances to obtain more skeletal effects. Furthermore, the occlusal pads of maxillary fixed orthodontic appliances are not removable, resulting in poor patient comfort and difficulty in compliance.

[0004] Therefore, how to provide an expander, removable Twin Block orthodontic appliance has become a technical problem that urgently needs to be solved in this field. Utility Model Content

[0005] One objective of this invention is to provide a new technical solution for an expander, removable Twin Block orthodontic appliance.

[0006] According to a first aspect of the present invention, a removable Twin block orthodontic appliance is provided, comprising: a maxillary expander, a maxillary pad, and a mandibular appliance;

[0007] The maxillary expander includes a first connecting plate, a second connecting plate, and a spring assembly. The two ends of the spring assembly are respectively connected to the first end of the first connecting plate and the first end of the second connecting plate, and the included angle between the first connecting plate and the second connecting plate is greater than 90 degrees.

[0008] The maxillary pad is detachably connected to the second end of the first connecting plate and the second end of the second connecting plate, respectively.

[0009] Optionally, the second end of the first connecting plate and the second end of the second connecting plate each have a protrusion.

[0010] Optionally, notches are provided on the first connecting plate and the second connecting plate respectively.

[0011] Optionally, the first connecting plate and the second connecting plate are made of iron;

[0012] The maxillary pad includes a side pad and a magnet. The side pad has a groove, and the magnet is disposed in the groove. The magnet is magnetically attracted to the first connecting plate and the second connecting plate.

[0013] Optionally, the outer side of the side pad is provided with a first connecting surface, and the two ends of the magnet are respectively provided with a second connecting surface and a first engaging surface, the second connecting surface being connected to the first connecting surface, and the first engaging surface being in contact with the protrusion.

[0014] Optionally, at least a portion of the maxillary expander, at least a portion of the side pads, and at least a portion of the mandibular appliance are made of resin.

[0015] Optionally, the maxillary expander is bonded to the maxillary teeth.

[0016] The beneficial effects of this utility model are as follows:

[0017] This invention connects the two ends of the spring assembly to the first end of the first connecting plate and the first end of the second connecting plate, respectively, with the included angle between the first and second connecting plates greater than 90 degrees. This allows the maxillary arch expander to be connected to the second ends of the first and second connecting plates. By fixing the maxillary arch expander to the maxillary teeth, this invention achieves tooth correction and effectively avoids the problem of the expanded spring retracting during repeated removal and replacement of the expander, which can lead to poor tooth correction. This facilitates efficient achievement of treatment goals. Furthermore, the maxillary arch expander is detachably connected to the first and second connecting plates, making installation and removal convenient. It avoids the impact of a heavy palatal base on pronunciation and the negative effects of removable orthodontic appliances on children's pronunciation, expression, and language learning, making it more comfortable and easier for patients to accept.

[0018] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0019] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0020] Figure 1 This is a structural diagram of the arch expander, removable Twin block orthodontic appliance of this utility model;

[0021] Figure 2 This is an exploded view of the expander, removable Twin Block orthodontic appliance of this utility model.

[0022] The following are labeled in the diagram: 1. Maxillary expander; 11. First connecting plate; 12. Second connecting plate; 13. Spring assembly; 14. Protrusion; 15. Notch; 16. Opening; 17. Second occlusal surface; 2. Maxillary pad; 21. Side pad; 22. Magnet; 23. Groove; 24. First connecting surface; 25. Second connecting surface; 26. First occlusal surface. Detailed Implementation

[0023] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0024] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0025] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0026] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0027] like Figure 1 and Figure 2 As shown, this utility model embodiment provides an arch expander, removable Twin block orthodontic appliance, including: a maxillary arch expander 1, a maxillary chin pad 2, and a mandibular appliance. It should be noted that the mandibular appliance is a traditional removable chin pad, which is fixed by arrow clips and interproximal hooks, and will not be described here.

[0028] The maxillary expander 1 includes a first connecting plate 11, a second connecting plate 12, and a spring assembly 13. The two ends of the spring assembly 13 are connected to the first end of the first connecting plate 11 and the first end of the second connecting plate 12, respectively, and the included angle between the first connecting plate 11 and the second connecting plate 12 is greater than 90 degrees.

[0029] The maxillary pad 2 is detachably connected to the second end of the first connecting plate 11 and the second end of the second connecting plate 12, respectively.

[0030] Specifically, an opening 16 is provided between the first connecting plate 11 and the second connecting plate 12, and the opening 16 is triangular in shape, which reduces the weight of the expander and removable Twin block orthodontic appliance of this utility model and achieves lightweight design.

[0031] It should be noted that the mandibular appliance and the spring assembly 13 of this utility model adopt the structure of the prior art. This utility model does not involve any improvement to the mandibular appliance and the spring assembly 13, so there is no need to elaborate on them here.

[0032] There are two maxillary pads 2, which are respectively matched with the first connecting plate 11 and the second connecting plate 12. The first connecting plate 11 and the second connecting plate 12 have the same structure and are arranged symmetrically.

[0033] This invention connects the two ends of the spring assembly 13 to the first end of the first connecting plate 11 and the first end of the second connecting plate 12, respectively, with the included angle between the first connecting plate 11 and the second connecting plate 12 being greater than 90 degrees. This allows the maxillary arch expander 2 to be connected to the second ends of the first connecting plate 11 and the second connecting plate 12, respectively. By fixing the maxillary arch expander 1 to the maxillary teeth, this invention achieves tooth correction and effectively avoids the problem of poor tooth correction caused by the retraction of the expanded spring during repeated removal and replacement of the expander in existing orthodontic appliances. This facilitates efficient achievement of treatment goals. Furthermore, the maxillary arch expander 2 is detachably connected to the first connecting plate 11 and the second connecting plate 12, facilitating its installation and removal. This avoids the impact of a heavy palatal base on pronunciation and the influence of removable orthodontic appliances on children's pronunciation, expression, and language learning, making it more comfortable and easier for patients to accept.

[0034] In one embodiment of the expander, removable Twin Block orthodontic appliance of this utility model, such as Figure 1 and Figure 2 As shown, the second end of the first connecting plate 11 and the second end of the second connecting plate 12 each have a protrusion 14.

[0035] Specifically, the protrusion 14 has a second occlusal surface 17, which corresponds to the structure of the molar.

[0036] In use, the second occlusal surface 17 of the protrusion 14 is fitted onto the molar.

[0037] In one embodiment of the expander, removable Twin Block orthodontic appliance of this utility model, such as Figure 1 and Figure 2 As shown, notches 15 are respectively provided on the first connecting plate 11 and the second connecting plate 12.

[0038] Specifically, the two ends of the spring assembly 13 are connected to the first connecting plate 11 located at one end of the notch 15 and the second connecting plate 12 located at one end of the notch 15, respectively. Due to the setting of the notch 15, the weight of the expander and removable Twin block orthodontic appliance of this utility model is further reduced, making it more convenient and comfortable for users to use.

[0039] In one embodiment of the expander, removable Twin Block orthodontic appliance of this utility model, such as Figure 1 and Figure 2 As shown, the first connecting plate 11 and the second connecting plate 12 are made of iron. This arrangement allows the force of the spring expansion assembly to be directly transmitted to the base tooth through the metal first connecting plate 11 and the second connecting plate 12, effectively avoiding the defect of insufficient expansion force of the movable base in the prior art.

[0040] The maxillary chin pad 2 includes a side pad 21 and a magnet 22. The side pad 21 has a groove 23, and the magnet 22 is disposed in the groove 23. The magnet 22 is magnetically attracted to the first connecting plate 11 and the second connecting plate 12.

[0041] It should be noted that the first connecting plate 11 and the second connecting plate 12 can also be made of resin. Iron plates are provided on the first connecting plate 11 and the second connecting plate 12. The iron plates can be provided on the surface of the second end of the first connecting plate 11 and the second end of the second connecting plate 12, or they can be provided inside the second end of the first connecting plate 11 and the second end of the second connecting plate 12. The side pad 21 is fixed by magnetic attraction between the magnet 22 and the iron plate.

[0042] This invention embeds iron plates at the second ends of the first connecting plate 11 and the second connecting plate 12, and places magnets 22 in the grooves 23. The magnets 22 magnetically attract the first connecting plate 11 and the second connecting plate 12, thereby fixing the side pad 21 to the first connecting plate 11 and the second connecting plate 12. This allows the user to remove the maxillary pad 2 when they are uncomfortable eating with the jaw pad in the early stages of treatment and cannot refuse it. This enhances the patient's cooperation and compliance, improves comfort, and makes it more acceptable to the patient.

[0043] In one embodiment of the expander, removable Twin Block orthodontic appliance of this utility model, such as Figure 1 and Figure 2 As shown, the side pad 21 has a first connecting surface 24 on its outer side, and the magnet 22 has a second connecting surface 25 and a first engaging surface 26 on its two ends respectively. The second connecting surface 25 is connected to the first connecting surface 24, and the first engaging surface 26 is in contact with the protrusion 14.

[0044] This invention provides a first connecting surface 24 on the outer side of the side pad 21, and provides a second connecting surface 25 and a first engaging surface 26 at both ends of the magnet 22, so that the second connecting surface 25 is connected to the first connecting surface 24 and the first engaging surface 26 is in contact with the protrusion 14, thereby enabling the magnet 22 to be stably installed on the side pad 21 and increasing the stability of the installation.

[0045] In one embodiment of the arch expander and removable Twin block orthodontic appliance of this utility model, at least part of the maxillary arch expander 1, at least part of the side pads 21 and at least part of the mandibular orthodontic appliance are made of resin.

[0046] In one embodiment of the removable Twin Block appliance of this utility model, the maxillary expander 1 is bonded to the maxillary teeth. This arrangement allows the maxillary expander 1 to be stably fixed to the maxillary teeth, effectively controlling the three-dimensional movement of the teeth. It enables rapid expansion of the arch while achieving overall tooth movement, and makes the expansion effect better.

[0047] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A removable Twin Block orthodontic appliance with an expanding bow, characterized in that, include: Maxillary expander, maxillary pad, and mandibular appliance; The maxillary expander includes a first connecting plate, a second connecting plate, and a spring assembly. The two ends of the spring assembly are respectively connected to the first end of the first connecting plate and the first end of the second connecting plate, and the included angle between the first connecting plate and the second connecting plate is greater than 90 degrees. The maxillary pad is connected to the second end of the first connecting plate and the second end of the second connecting plate, respectively.

2. The expander, removable Twin block orthodontic appliance according to claim 1, characterized in that, The second end of the first connecting plate and the second end of the second connecting plate each have a protrusion.

3. The expander, removable Twin block orthodontic appliance according to claim 1, characterized in that, Both the first connecting plate and the second connecting plate have notches.

4. The expander, removable Twin block orthodontic appliance according to claim 2, characterized in that, The first connecting plate and the second connecting plate are made of iron; The maxillary pad includes a side pad and a magnet. The side pad has a groove, and the magnet is disposed in the groove. The magnet is magnetically attracted to the first connecting plate and the second connecting plate.

5. The expander, removable Twin block orthodontic appliance according to claim 4, characterized in that, The side pad has a first connecting surface on its outer side, and the magnet has a second connecting surface and a first engaging surface at its two ends, respectively. The second connecting surface is connected to the first connecting surface, and the first engaging surface is in contact with the protrusion.

6. The expander, removable Twin block orthodontic appliance according to claim 4, characterized in that, At least a portion of the maxillary expander, at least a portion of the side pads, and at least a portion of the mandibular orthodontic appliance are made of resin.

7. The expander, removable Twin block orthodontic appliance according to claim 4, characterized in that, The maxillary expander is bonded to the maxillary teeth.

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