Bone expansion device with molar distalization function

Abstract

The utility model is specifically related to a kind of bone expansion arch device with molar distal movement correction function, including expansion arch body, the both sides of expansion arch body are provided with first connecting arch body and second connecting arch body, the end of first connecting arch body and the end of second connecting arch body are respectively provided with first correction band ring and second correction band ring, the upper of first correction band ring is provided with guide rod, the second correction band ring is provided with guide pipe, the guide rod is slidably connected with guide pipe, spring is set on the guide rod, and the spring is located between guide pipe and first correction band ring.The utility model has the beneficial effects as follows: single device can realize bone expansion arch and molar distal movement, and the structure is simple and reliable.

Description

Technical Field

[0001] This utility model relates to the field of oral medical devices, specifically a skeletal arch expander with molar distalization correction function. Background Technology

[0002] In the clinical field of orthodontics, narrow dental arches and crowded teeth are common malocclusion problems. To address the mismatch between the length and width of the dental arch, two core orthodontic techniques are widely used: skeletal arch expansion and molar distalization.

[0003] The core objective of skeletal arch expansion is to open the midpalatal suture between the two maxillae, achieving true growth in maxillary width through distraction osteogenesis, thus providing more skeletal space for the dental arch. This method is the fundamental solution to insufficient transverse development of the maxilla.

[0004] Molar distalization aims to move molars (usually the first and second molars) backward in the mouth, using the resulting space to align crowded teeth in the anterior segment or correct mild to moderate malocclusion. It is a method of increasing the effective length of the dental arch in the sagittal direction.

[0005] When dealing with complex malocclusion cases that require simultaneous skeletal expansion and molar distalization, existing skeletal expanders only have skeletal expansion functions, which are limited in function. There is a lack of an orthodontic device that can efficiently and stably integrate skeletal expansion and molar distalization functions into one device. Utility Model Content

[0006] The purpose of this invention is to provide a skeletal arch expander with molar distalization correction function, which can realize skeletal arch expander and molar distalization with a single device, and has a simple and reliable structure.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a skeletal expander with molar distalization correction function, comprising an expander body, a first connecting bow and a second connecting bow on both sides of the expander body, a first corrective band and a second corrective band respectively provided at the ends of the first and second connecting bows, a guide rod provided on the first corrective band, a guide tube provided on the second corrective band, the guide rod and the guide tube being slidably connected, a spring sleeved on the guide rod, and the spring being located between the guide tube and the first corrective band.

[0008] Furthermore, the first connecting bow body is integrated with the first corrective belt loop and the main body of the bow expander; the second connecting bow body is integrated with the second corrective belt loop and the main body of the bow expander.

[0009] Furthermore, the first connecting bow body, the second connecting bow body, the first corrective belt ring, and the bow expander body are made of nickel-titanium alloy.

[0010] Furthermore, there are two guide rods, which are disposed on both sides of the first corrective belt loop, and there are two guide tubes, which are disposed on both sides of the second corrective belt loop.

[0011] Furthermore, a J-shaped protrusion is provided on the side of the first corrective belt loop away from the second corrective belt loop.

[0012] Furthermore, the first and second corrective bands have notches at their centers.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: it can realize the functions of skeletal arch expansion and molar distalization with a single device, and the structure is simple and reliable. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the usage state of this utility model.

[0016] In the diagram: 1. Bow expander body; 2. First corrective belt ring; 3. Second corrective belt ring; 4. First connecting bow body; 5. Second connecting bow body; 6. Guide rod; 7. Guide tube; 8. Spring; 9. J-shaped protrusion. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Example:

[0019] Please see Figure 1-2 A skeletal expander with molar distalization correction function includes an expander body 1. A first connecting bow 4 and a second connecting bow 5 are provided on both sides of the expander body 1. A first corrective band 2 and a second corrective band 3 are respectively provided at the ends of the first connecting bow 4 and the second connecting bow 5. A guide rod 6 is provided on the first corrective band 2, and a guide tube 7 is provided on the second corrective band 3. The guide rod 6 and the guide tube 7 are slidably connected. A spring 8 is sleeved on the guide rod 6 and is located between the guide tube 7 and the first corrective band 2.

[0020] The first connecting bow body 4 is integrated with the first orthodontic band 2 and the main body 1 of the expander. In use, the first orthodontic band 2 is fixedly embedded in the first molar. The second connecting bow body 5 is integrated with the second orthodontic band 3 and the main body 1 of the expander. In use, the second orthodontic band 3 is fixedly embedded in the second molar.

[0021] The first connecting bow body 4, the second connecting bow body 5, the first corrective belt ring 2, and the bow expander body 1 are made of nickel-titanium alloy, which has good corrosion resistance and good elasticity, making them relatively more comfortable to wear.

[0022] There are two guide rods 6, and the two guide rods 6 are located on both sides of the first corrective belt ring 2. There are two guide tubes 7, and the two guide tubes 7 are located on both sides of the second corrective belt ring 3.

[0023] A J-shaped protrusion 9 is provided on the side of the first corrective band 2 away from the second corrective band 3.

[0024] A notch is provided in the center of the first orthodontic band 2 and the second orthodontic band 3 to reduce the impact on chewing and facilitate tooth cleaning.

[0025] The working principle of this utility model is as follows: When this device is in use, the main body 1 of the expander is fixedly installed on the maxilla of the oral cavity, the first orthodontic band 2 is fixedly embedded on the first molar, and the second orthodontic band 3 is fixedly embedded on the second molar. After the first orthodontic band 2 and the second orthodontic band 3 are fixedly embedded, based on the skeletal expansion function of the expander itself, the second molar is pushed away from the first molar under the action of the elastic force of the spring 8 due to the spring 8 being in a compressed state, thus realizing the function of pushing the molar distally.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A skeletal arch expander with molar distalization correction function, characterized in that: The device includes a bow expander body (1), on both sides of which are provided a first connecting bow body (4) and a second connecting bow body (5). At the ends of the first connecting bow body (4) and the second connecting bow body (5), a first corrective belt ring (2) and a second corrective belt ring (3) are respectively provided. A guide rod (6) is provided on the first corrective belt ring (2), and a guide tube (7) is provided on the second corrective belt ring (3). The guide rod (6) and the guide tube (7) are slidably connected. A spring (8) is sleeved on the guide rod (6), and the spring (8) is located between the guide tube (7) and the first corrective belt ring (2).

2. The skeletal arch expander with molar distalization correction function according to claim 1, characterized in that: The first connecting bow body (4) is integrated with the first corrective belt loop (2) and the bow expander body (1); the second connecting bow body (5) is integrated with the second corrective belt loop (3) and the bow expander body (1).

3. A skeletal arch expander with molar distalization correction function according to claim 2, characterized in that: The first connecting bow body (4), the second connecting bow body (5), the first corrective belt ring (2) and the bow expander body (1) are made of nickel-titanium alloy.

4. A skeletal arch expander with molar distalization correction function according to claim 1, characterized in that: There are two guide rods (6), and the two guide rods (6) are located on both sides of the first correction belt ring (2). There are two guide tubes (7), and the two guide tubes (7) are located on both sides of the second correction belt ring (3).

5. A skeletal arch expander with molar distalization correction function according to claim 1, characterized in that: The first corrective band (2) has a J-shaped protrusion (9) on the side away from the second corrective band (3).

6. A skeletal arch expander with molar distalization correction function according to claim 1, characterized in that: The first corrective band (2) and the second corrective band (3) have a notch at their center.

Images