Retainer for preventing relapse of partial jaw after orthodontic correction

Abstract

The utility model belongs to a retainer for preventing relapse of partial jaw after orthodontic correction. The utility model aims to solve the problems in the background technology that the design of the conventional retainer focuses on maintaining the stability of tooth arrangement, and the conventional retainer is lack of targeted design for a patient with partial jaw, so that the jaw position and the middle line of the lower jaw cannot be effectively maintained, postoperative recurrence is easily caused, and the maintaining effect is not ideal. According to the technical scheme, according to the upper jaw assembly, a base is connected with a hyperbolic labial arch through a connecting steel wire, two tail ends connected with the hyperbolic labial arch form clamping rings, two traction bends are formed between the hyperbolic labial arch and the clamping rings at the two tail ends, and an anterior tooth jaw biting groove is formed in the arc top of the base; according to the lower jaw assembly, a base plate is connected with a hyperbolic labial arch through a connecting steel wire, clamping rings are formed by connecting the two tail ends of the hyperbolic labial arch, and two traction curves are formed between the hyperbolic labial arch and the clamping rings at the two tail ends. The section of the anterior tooth jaw biting groove is high on two sides and low in the middle. The method is suitable for keeping the state of preventing the relapse of the partial jaw after orthodontic correction.

Description

Technical Field

[0001] This utility model relates to tools used in oral and maxillofacial orthodontics, and in particular to a retainer for preventing relapse of malocclusion after orthodontic treatment. Background Technology

[0002] Malocclusion, a common maxillofacial deformity, is usually caused by genetic factors, environmental factors, or improper lifestyle habits, severely affecting patients' chewing function, facial appearance, and oral health. Correction methods for malocclusion mainly include combined orthognathic and orthodontic treatment and orthodontic camouflage treatment. Orthodontic treatment typically corrects deviation through compensatory tooth movement. However, because malocclusion often involves developmental abnormalities of the jawbone and soft tissues, patients face a high risk of relapse after treatment, especially as maintaining the stability of the mandibular midline is difficult. To effectively address the relapse problem of malocclusion, the use of retainers after treatment has become a crucial aspect of orthodontic treatment. Existing retainer designs mostly focus on maintaining tooth alignment stability, lacking specific designs for patients with malocclusion. Therefore, they cannot effectively maintain the mandibular position and midline, easily leading to postoperative relapse and unsatisfactory maintenance results. Therefore, there is an urgent need for a new type of malocclusion retainer that can combine the function of maintaining tooth alignment after orthodontic treatment, while simultaneously ensuring the stability of the mandibular position and midline, and providing a more comfortable and personalized wearing experience with the Chi-square traction curve, thereby improving the long-term effectiveness and stability of treatment. Utility Model Content

[0003] The purpose of this invention is to propose a retainer for preventing relapse of malocclusion after orthodontic treatment, addressing the existing limitations of the prior art: existing retainer designs primarily focus on maintaining the stability of tooth alignment, lacking specific design considerations for patients with malocclusion, thus failing to effectively maintain the mandibular position and midline, easily leading to postoperative relapse and unsatisfactory retention results. The technical solution adopted to solve this problem is: a retainer for preventing relapse of malocclusion after orthodontic treatment, comprising a maxillary component and a mandibular component, characterized in that: the maxillary component consists of a base connected to a double-curved labial arch via connecting wires, with clasps forming between the two ends of the double-curved labial arch, forming two traction curves between the double-curved labial arch and the two clasps at the ends; and an anterior occlusal groove is provided at the top of the base arc; the mandibular component consists of a base connected to a double-curved labial arch via connecting wires, with clasps forming between the two ends of the double-curved labial arch, forming two traction curves between the double-curved labial arch and the two clasps at the ends; wherein the cross-sectional shape of the anterior occlusal groove is high on both sides and low in the middle. The base is made of resin or other polymer materials and conforms to the soft tissues of the oral cavity and the surface of the teeth. The double-curved labial arch and clasp are made of 0.9mm diameter stainless steel wire, with the free end of the wire embedded in the base. The connecting wire is made of 0.5mm diameter stainless steel wire, with the free end embedded in the base and the other end fixed between the double-curved labial arch and the clasp. The maxillary component has anterior occlusal grooves on the base positions corresponding to the labial sides of the maxillary central incisors and lateral incisors. These anterior occlusal grooves have imprints that mate with the patient's lower anterior teeth. Through their mate with the patient's lower anterior teeth, the correct position of the mandible and the mandibular midline is effectively maintained, thereby maintaining the stability of the mandibular position and midline. The traction loop is located between the double-curved labial arch and the clasp, with a length of 2-4mm and a width of 1-3mm. It is used to attach orthodontic braces. It effectively plays a therapeutic role. If a relapse occurs, the oblique traction can achieve the therapeutic effect. It can both stabilize the condition and correct the relapse well. Most importantly, it does not require rework, which greatly saves costs and time.

[0004] The beneficial effects of this invention compared to the prior art are as follows: Due to the adoption of the above-mentioned technical solution, it possesses superior functionality in maintaining the mandibular midline and jaw position, particularly showing significant effectiveness in preventing relapse of mandibular asymmetry. Through the design of the anterior tooth occlusal groove and impression, this retainer effectively ensures mandibular stability and significantly improves patient comfort, avoiding the shortcomings of traditional retainers in insufficient maintenance of the mandibular midline. Furthermore, the retainer has a simple structure, is easy to adjust, and can meet the personalized needs of different patients. It effectively maintains the treatment effect even after long-term wear. In addition, the vertical adjustment of the Chi-square traction curve effectively addresses the problem of relapse, further enhancing the durability and stability of the treatment, ensuring perfect results after correction. Attached Figure Description

[0005] Figure 1 This is a schematic diagram of the maxillary component of this utility model.

[0006] Figure 2 yes Figure 1 Top view.

[0007] Figure 3 This is a schematic diagram of the mandibular component of this utility model.

[0008] Figure 4 yes Figure 3 Top view. Detailed Implementation

[0009] Example: Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 A retainer for preventing relapse of malocclusion after orthodontic treatment includes a maxillary component and a mandibular component. The maxillary component consists of a base 1 connected to a double-curved labial arch 2 via a connecting wire 3. Two clasps 4 are formed connecting the two ends of the double-curved labial arch 2, and two traction curves 6 are formed between the double-curved labial arch 2 and the two clasps 4. An anterior occlusal groove 5 is provided at the apex of the base 1. The mandibular component consists of a base 1 connected to the double-curved labial arch 2 via a connecting wire 3. Two clasps 4 are formed connecting the two ends of the double-curved labial arch 2, and two traction curves 6 are formed between the double-curved labial arch 2 and the two clasps 4. The anterior occlusal groove 5 has a cross-sectional shape that is high at both sides and low in the middle. The base 1 is made of resin or other polymer material and conforms to the oral soft tissue and tooth surface. The labial arch 2 and clasp 4 are made of 0.9mm diameter stainless steel wire, with the free end of the wire embedded in the base 1; the connecting wire 3 is made of 0.5mm diameter stainless steel wire, with the free end of the wire embedded in the base, and the other end fixed between the double-curved labial arch 2 and clasp 4; the maxillary component has anterior occlusal grooves 5 at the base positions corresponding to the labial sides of the maxillary central incisors and lateral incisors. The anterior occlusal grooves 5 have occlusal grooves that match the imprint of the patient's lower anterior teeth. Through their matching with the patient's lower anterior teeth, the correct position of the mandible and the mandibular midline is effectively maintained, thereby maintaining the stability of the mandibular position and midline; the traction bend 6 is located between the double-curved labial arch 2 and clasp 4, with a length of 2-4mm and a width of 1-3mm, and is used to attach orthodontic braces.

Claims

1. A retainer for preventing relapse of a malocclusion after orthodontic treatment, comprising an upper jaw assembly and a lower jaw assembly, characterized in that: The upper jaw assembly is connected with the double-curved lip arch (2) by the base plate (1) through the connecting steel wire (3), the two tail ends of the double-curved lip arch (2) form the clasp (4), the double-curved lip arch (2) and the clasp (4) of the two tail ends form the two traction curves (6), and the base plate (1) is provided with the front tooth bite slot (5) at the top of the arc; the lower jaw assembly is connected with the double-curved lip arch (2) by the base plate (1) through the connecting steel wire (3), the two tail ends of the double-curved lip arch (2) form the clasp (4), the double-curved lip arch (2) and the clasp (4) of the two tail ends form the two traction curves (6); wherein the cross-sectional shape of the front tooth bite slot (5) is high on both sides and low in the middle.

2. The retainer for preventing relapse of malocclusion after orthodontic treatment according to claim 1, wherein: The base plate (1) is made of a high polymer material and is attached to the soft tissue and tooth surface in the oral cavity.

3. The retainer for preventing relapse of malocclusion after orthodontic treatment according to claim 1, wherein: The double-curved lip arch (2) and the clasp (4) are made of 0.9mm diameter stainless steel wire and are bent, and the free end of the steel wire is embedded in the base plate (1).

4. The retainer for preventing relapse of malocclusion after orthodontic treatment according to claim 1, wherein: The connecting steel wire (3) is made of 0.5mm diameter stainless steel wire and is bent, the free end of the steel wire is embedded in the base plate, and the other end is fixed between the double-curved lip arch (2) and the clasp (4).

5. The retainer for preventing relapse of malocclusion after orthodontic treatment according to claim 1, wherein: The upper jaw assembly is provided with the front tooth bite slot (5) at the position of the base plate corresponding to the upper jaw central incisor and lateral incisor on the labial side to achieve stability, the front tooth bite slot (5) has a tooth mark that matches the lower front teeth of the patient, and the correct position of the mandible and the mandibular midline is effectively maintained through the matching of the front teeth of the patient, so as to maintain the stability of the mandibular jaw position and the midline.

6. The retainer for preventing relapse of malocclusion after orthodontic treatment according to claim 1, wherein: The traction curve (6) is located between the double-curved lip arch (2) and the clasp (4), has a length of 2-4mm and a width of 1-3mm, and is used for hanging orthodontic rubber rings.

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