Orthodontic appliance

Abstract

The utility model is applicable to the field of oral medical instruments, and provides an orthodontic appliance, which comprises a palatal arch, a base plate mounted on the palatal arch and two bands capable of being respectively mounted on two molar teeth in the oral cavity, an insertion opening is formed in one side of the belt ring, and a fixing base is arranged on the side, opposite to the insertion opening, of the belt ring; the two ends of the palate arch are inserted into the insertion openings of the two belt rings respectively and then are connected with the insertion openings in a welded mode. Therefore, by optimizing the shape and the size of the palatal arch and the mode that the palatal arch and the insertion hole of the belt ring are welded after being inserted, stimulation of the appliance to soft tissues on the tongue side and in the oral cavity is reduced, and the comfort level of a patient is improved. Meanwhile, the anchorage effect of the molar is enhanced, and movement, torsion or inclination torque loss of the molar in the correction process can be prevented.

Description

Technical Field

[0001] This utility model applies to the field of dental medical devices and provides an orthodontic appliance. Background Technology

[0002] Orthodontic treatment is a treatment method that uses scientific methods and specialized appliances to adjust the alignment of teeth, gums, and jawbones. It aims to improve problems such as misaligned teeth and abnormal occlusion, achieving normal bite and aesthetics. Orthodontic treatment can solve common oral problems such as crowded teeth, malocclusion, and other dental issues, improving patients' oral health and facial aesthetics, as well as chewing function and oral hygiene.

[0003] In orthodontic treatment, the Nance arch is a commonly used auxiliary device, mainly used to enhance molar anchorage, especially in the early stages of orthodontic treatment, to prevent loss of torque due to mesial movement, rotation, or tilting of the molars. The Nance arch typically consists of a bent, arch-shaped metal strip and two support points, which are usually welded to the palatal arch.

[0004] The existing Nance bow has certain issues with its welding connection to the palatal arch, particularly causing a strong foreign body sensation during wear and affecting patient comfort. Because the welding method between the Nance bow and the palatal arch is relatively fixed, the metal welding points are relatively large, which can easily irritate the soft tissues inside the mouth, especially in the palate region, potentially causing discomfort, pain, or oral ulcers. Utility Model Content

[0005] To address the aforementioned deficiencies, the present invention aims to provide an orthodontic appliance to solve the problems mentioned in the background art. The device includes a palatal arch, a base mounted on the palatal arch, and two bands that can be respectively mounted on two molars in the oral cavity. One side of each band has an insertion port, and the side of each band opposite to the insertion port has a fixing seat. The two ends of the palatal arch are respectively inserted into the insertion ports of the two bands and then welded to the insertion ports.

[0006] Furthermore, the band is square-shaped, the palatal arch uses stainless steel wire with a diameter of 0.8-0.9mm, and the two ends of the palatal arch can be inserted into two insertion ports respectively.

[0007] Furthermore, the palatal arch, from a top-down structural perspective, includes a first second bend, two first bends, and a second second bend connected in sequence; both second bends and both first bends are circular arcs.

[0008] Furthermore, the radius of the circle containing the second bend is 16±1mm, and the corresponding central angle is 70-75°, while the radius of the circle containing the first bend is 5±0.2mm, and the corresponding central angle is 55-57°.

[0009] Furthermore, the palatal arch, from a structural side view, includes a third bend, a fourth bend, and a fifth connecting portion connected in sequence; both the third bend and the fourth bend are arcs.

[0010] Furthermore, the radius of the circle containing the third bend is 32±1mm, and the corresponding central angle is 28-30°. The radius of the circle containing the first bend is 50±2mm, and the corresponding central angle is 33-35°.

[0011] Furthermore, a base is installed in the middle of the palatal arch, and the base is a self-curing denture substrate.

[0012] Therefore, this device can achieve the following beneficial effects:

[0013] 1. Comfort: By optimizing the shape and size of the palatal arch and the welding method after the palatal arch is inserted into the socket of the band, the stimulation of the appliance on the tongue and the soft tissue inside the oral cavity is reduced, thus improving the patient's comfort.

[0014] 2. Enhance molar anchorage: The band fits tightly around the molar and, through the connection with the palatal arch, enhances the anchorage of the molar, helping to prevent the loss of torque due to movement, rotation, or tilting of the molar during orthodontic treatment.

[0015] 3. Improved treatment efficiency: The stable structure of the orthodontic appliance can stably support and adjust the teeth, thereby improving treatment efficiency and shortening treatment time.

[0016] 4. Wide applicability: This appliance is suitable for various orthodontic treatments and can meet the needs of different patients. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the device structure;

[0018] Figure 2 This is a schematic diagram of a ring structure;

[0019] Figure 3 This is a schematic diagram of the palatal arch structure.

[0020] Figure 4 Top view of the palatal arch;

[0021] Figure 5 Side view of the palatal arch;

[0022] In the diagram: 1-ring; 11-fixed seat; 12-insertion; 2-palatal arch; 21-first bend; 22-second bend; 23-third bend; 24-fourth bend; 25-fifth connecting part; 3-base. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] It should be noted that, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] Furthermore, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0027] See Figure 1-5 The purpose of this utility model is to provide an orthodontic appliance, including a palatal arch 2, a base 3 mounted on the palatal arch 2, and bands 1 that can be mounted on two molars in the oral cavity; the palatal arch 2 is made of metal wire, and the two bands 1 are welded to the two ends of the palatal arch 2 respectively.

[0028] Specifically, the band 1 is a square tubular metal sleeve, and the internal space of the band 1 is slightly larger than the widest outer circumference of the molar. One side of the band 1 has an insertion port 12, and the opposite side has a fixing seat 11. The metal wire of the palatal arch 2 is made of stainless steel with a diameter of 0.8-0.9 mm, and both ends of the stainless steel wire can be inserted into the insertion port 12.

[0029] In the fabrication of the orthodontic appliance in this scheme, a patient's oral model is required for trial fitting. An impression is taken from the oral model, and wax is applied to the inner palatal side of the impression to prepare for welding, reduce heat dissipation, and increase the welding temperature. Then, the palatal arch 2 is bent and its position is tested on the impression. The matching position between the palatal arch 2 and the insertion port 12 is marked, and excess material is cut off using a grinder. Next, a separating agent is applied to the palatal part of the impression. The palatal arch 2 is inserted into the designated mark in the insertion port 12, and the palatal arch 2 is readjusted. Wax and plaster are then used to fix the relative position of the palatal arch 2 and the band 1. Finally, welding flux is applied, and welding is completed.

[0030] After welding, use a grinder again to smooth the protruding sections of the palatal arch 2 inside the band 1, so that the inner surface of the band 1 is flat.

[0031] See appendix Figure 4 Preferably, the palatal arch 2 includes, from a top-down structural perspective, a first second bend 22, two first bends 21, and a second second bend 22 connected in sequence; both second bends 22 and two first bends 21 are arcs, and the radius of the circle containing the second bend 22 is 16±1mm, with a corresponding central angle of 70-75°, and the radius of the circle containing the first bend 21 is 5±0.2mm, with a corresponding central angle of 55-57°.

[0032] See appendix Figure 5 Preferably, the palatal arch 2 includes a third bend 23, a fourth bend 24, and a fifth connecting part 25 connected in sequence from a structural side view; the third bend 23 and the fourth bend 24 are both arcs, and the radius of the circle containing the third bend 23 is 32±1mm, with a corresponding central angle of 28-30°, and the radius of the circle containing the first bend 21 is 50±2mm, with a corresponding central angle of 33-35°.

[0033] Preferably, a base 3 is installed in the middle of the palatal arch 2, and the base 3 is a self-curing denture substrate. Specifically, the self-curing denture substrate is constructed through the following steps: First, after the palatal arch 2 is fixed to the band 1, an elliptical ring wax dam is constructed in the middle of the palatal arch 2, at the contact point with the palate. After soaking the plaster model, excess water is blown away, orthodontic self-curing denture powder is sprinkled inside the elliptical ring wax dam, self-curing denture substrate is added, and after natural solidification, the base 3 is formed. Finally, the wax dam around the base 3 is removed, completing the construction of the base 3.

[0034] Preferably, the fixing seat 11 is provided with a groove for placing and installing orthodontic archwires and metal wires.

[0035] Preferably, both the fixing base 11 and the belt ring 1 are made of stainless steel.

[0036] In summary, in practical use, this orthodontic appliance securely connects two bands 1 together via the palatal arch 2. The bands 1 fit snugly over the patient's two molars, thus providing effective support and fixation. The shape and size of the palatal arch 2 are carefully designed to conform to the patient's oral structure. After wearing the appliance, the patient can use orthodontic archwires and other accessories in conjunction with the grooves on the fixing base 11 for tooth traction and adjustment. After the palatal arch 2 is welded to the bands 1, the weld joint is smoothed using polishing equipment, reducing the likelihood of contact between the joint and the lingual surface, thus minimizing the feeling of a foreign object during wear. Simultaneously, the base 3 is installed in the middle of the palatal arch 2, contacting the palate and providing additional support and comfort, further reducing irritation to the soft tissues inside the oral cavity. After the base 3 is installed, adhesive is mixed and placed inside the bands 1 for subsequent installation on the patient's teeth.

[0037] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.

Claims

1. An orthodontic appliance, characterized in that, The application relates to a dental appliance, which comprises a palatal arch (2), a base (3) mounted on the palatal arch (2) and two bands (1) respectively mounted on two molar teeth in the oral cavity; one side of the band (1) is provided with a socket (12), and the side of the band (1) opposite to the socket (12) is provided with a fixing seat (11); the two ends of the palatal arch (2) are respectively inserted into the sockets (12) of the two bands (1) and are welded with the sockets (12).

2. The orthodontic appliance of claim 1, wherein, The band (1) is a square tube, the palatal arch (2) is made of stainless steel wire with a diameter of 0.8-0.9 mm, and the two ends of the palatal arch (2) can be respectively inserted into the interiors of the two sockets (12).

3. The orthodontic appliance of claim 1, wherein, The palatal arch (2) comprises a first second bending part (22), two first bending parts (21) and a second second bending part (22) which are sequentially connected in a structure top view; the two second bending parts (22) and the two first bending parts (21) are all circular arcs.

4. The orthodontic appliance of claim 3, wherein, The radius of the circle where the second bending part (22) is located is 16+ / -1 mm, and the corresponding central angle is 70-75 DEG; the radius of the circle where the first bending part (21) is located is 5+ / -0.2 mm, and the corresponding central angle is 55-57 DEG.

5. The orthodontic appliance of claim 4, wherein, The palatal arch (2) comprises a third bending part (23), a fourth bending part (24) and a fifth connecting part (25) which are sequentially connected in a structure side view; the third bending part (23) and the fourth bending part (24) are both circular arcs.

6. The orthodontic appliance of claim 5, wherein, The radius of the circle where the third bending part (23) is located is 32+ / -1 mm, and the corresponding central angle is 28-30 DEG; the radius of the circle where the first bending part (21) is located is 50+ / -2 mm, and the corresponding central angle is 33-35 DEG.

7. The orthodontic appliance of claim 1, wherein, The middle part of the palatal arch (2) is provided with the base (3), and the base (3) is a self-curing dental base water monomer.

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