CN219940832U

CN219940832U - Lingual retainer

Info

Publication number: CN219940832U
Application number: CN202221802725.9U
Authority: CN
Inventors: 李祖安; 高志钟; 马金龙; 陈思远
Original assignee: Guangzhou Riton Biomaterial Co Ltd
Current assignee: Guangzhou Riton Biomaterial Co Ltd
Priority date: 2022-07-12
Filing date: 2022-07-12
Publication date: 2023-11-03
Anticipated expiration: 2032-07-12

Abstract

The utility model discloses a lingual retainer, comprising: a positioner and a retaining wire; a positioning cavity which is suitable for being matched with the incised end of the teeth of the patient is formed in the positioner, a clamping part is arranged on the side part of the positioner along the lingual direction, and the clamping part is suitable for being connected with the retaining wire in a matched manner; the retaining wire is in a shape manufactured according to the personalized correction target of the patient; the retaining wire is connected to the buckling part of the positioner so that the retaining wire is attached to the side face of the tooth tongue; the retaining wire is used for adhering and fixing with the lingual side of the tooth. The utility model has the advantages of high fitting degree and high accuracy, is convenient to operate, saves the time beside the chair of the patient and the doctor, and effectively improves the correction experience of the patient.

Description

Lingual retainer

Technical Field

The utility model relates to the field of orthodontic treatment, in particular to a lingual retainer.

Background

Orthodontic treatment is mainly carried out on teeth, jawbone and facial deformity, so that a patient gradually recovers normal occlusion function. When orthodontic treatment is finished, certain potential instability and recurrence exist, particularly, patients with crowded front teeth and adopting non-tooth extraction correction are involved, so that the corrected patients need to wear an orthodontic retainer for a period of time to consolidate the treatment effect, and the teeth can be stabilized at a new position after being maintained by the orthodontic retainer. Orthodontic retainers are therefore an essential component of the process of orthodontic treatment and are effective measures to prevent recurrence of deformity.

The prior orthodontic retainer mainly comprises a Harley retainer, a transparent retainer, a lingual retaining wire and the like, but has respective defects. Although the Harley retainer is firm and difficult to use, the Harley retainer is suitable for more cases, but has poor aesthetic property and complex manufacturing process. Transparent holders, while aesthetically pleasing, require periodic replacement, and subsequent maintenance costs are high, requiring high compliance. The lingual retaining wire is relatively attractive in appearance, high in comfort level and good in stability, but needs to be bent beside a chair by a doctor, and is long in time consumption, low in accuracy, poor in tooth fitting degree, easy to plug food residues, capable of affecting oral hygiene and causing periodontal diseases, and meanwhile, the retaining wire bent manually is usually broken or concentrated in stress, and is worn for a long time to have the risk of breakage, so that the tooth retaining effect is affected.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model aims to provide a lingual retainer which can solve the problems of poor tooth fitting degree, low accuracy, long chair side time and inconvenient operation of the existing lingual retaining wire.

The utility model is realized by the following technical scheme:

a lingual retainer comprising: a positioner and a retaining wire; a positioning cavity suitable for matching with the incised ends of teeth of a patient is formed in the positioner, a clamping part is arranged on the side part of the positioner along the lingual direction, and the clamping part is suitable for being connected with a retaining wire in a matched manner; the retaining wire is in a shape manufactured according to the personalized correction target of the patient; the retaining wire is connected to the clamping part of the locator so that the retaining wire is attached to the lingual side of the teeth; the retaining wire is used for being adhered and fixed with the lingual side of the teeth.

Further, a plurality of U-shaped curved structures are arranged on the retaining wire.

Further, the positioning cavity also comprises a plurality of grooves, and the grooves are matched with the shapes of the cut ends of the teeth to be corrected of the patient in a one-to-one correspondence mode.

Further, the depth of the positioning cavity is smaller than the distance between the labial bracket on the tooth surface of the patient and the tooth tangential surface.

Further, the locator is a resin locator.

Further, the holding wire is a holding wire manufactured by 3D printing or a holding wire manufactured by heat setting processing.

Further, the retaining wire is a titanium-nickel alloy or a titanium-nickel alloy.

Further, the cross-sectional shape of the retaining wire is circular or elliptical.

Further, the retaining wire and the lingual side of the tooth are fixed by light curing of a dental-specific photosensitive resin.

Further, 3 buckling parts are arranged on the positioner, two ends of the holding wire are respectively connected to the buckling parts positioned at the left side and the right side, and the middle part of the holding wire is connected with the buckling parts positioned between the two sides.

Compared with the prior art, the utility model has the following beneficial effects: through with patient's tooth cut end assorted location chamber in the locator, can install the locator on patient's tooth fast, accurately, because the shape of location chamber is according to patient's tooth condition personalized design, the mounted position of location is unique for keep the silk can accurately realize closely laminating with tooth tongue side, have the advantage that laminating degree is high, accurate high. Meanwhile, the utility model has convenient operation, saves the time beside the chair of the patient and the doctor, and effectively improves the correction experience of the patient.

Drawings

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic view of the internal structure of the present utility model;

FIG. 3 is a schematic view of the present utility model in use;

FIG. 4 is a front view of the utility model in use;

fig. 5 shows a schematic view of a retaining wire.

In the figure: 10. a positioner; 11. a positioning cavity; 111. a groove; 12. a fastening part; 20. holding the wire; 21. a U-shaped curved structure; 30. teeth; 40. labial bracket.

Detailed Description

The present utility model will be further described with reference to the accompanying drawings and detailed description, wherein it is to be understood that, on the premise of no conflict, the following embodiments or technical features may be arbitrarily combined to form new embodiments.

In the description of the present utility model, it should be understood that the terms "center," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The utility model discloses a lingual retainer, referring to FIGS. 1-3, comprising: a positioner 10 and a retaining wire 20. The positioner 10 is used for installation and positioning, a positioning cavity 11 is formed in the positioner, the shape of the positioning cavity 11 is matched with the shape of the cut end of the teeth 30 of the patient, and the positioner 10 can be accurately sleeved on the tooth surface of the patient. Of course, the number of teeth 30 to be forced depends on the patient, and the number of teeth 30 corresponding to the positioning cavity 11 depends on the correction, and the present utility model may be a half-mouth retainer, a full-mouth retainer, or any other number of teeth 30. The side of the retainer 10 is provided with a snap-fit portion 12 in the lingual direction for mating connection with the retaining wire 20. The retaining wire 20 is shaped according to the patient's personalized corrective goal, and the retaining wire 20 is attached to the clasp 12 of the positioner 10. When the positioner 10 is sleeved on the tooth surface, the retaining wires 20 are tightly attached to the lingual side surfaces of the teeth 30, and the retaining wires 20 are fixedly bonded to the lingual side surfaces of the teeth 30, so that the correction force is transmitted to the teeth 30.

Through the positioning cavity 11 which is matched with the cut end of the teeth 30 of the patient in the positioning device 10, the positioning device 10 can be quickly and accurately installed on the teeth 30 of the patient, and the installation position of the positioning device is unique because the shape of the positioning cavity 11 is personally designed according to the tooth condition of the patient, so that the retaining wire 20 can be accurately and tightly attached to the lingual side of the teeth 30, and the positioning device has the advantages of high attaching degree and high accuracy. Meanwhile, the utility model has convenient operation, saves the time beside the chair of the patient and the doctor, and effectively improves the correction experience of the patient.

In order to prevent the problem of misalignment of the magnitude and direction of the correction force caused by the rotation of the retaining wire 20 in the mouth, it is preferable that a plurality of U-shaped curved structures 21 are provided on the retaining wire 20, referring to fig. 5.

Preferably, referring to fig. 2, the positioning cavity 11 specifically includes a plurality of grooves 111, the number of grooves 111 corresponds to the number of teeth 30 required by the patient, and the internal shape of the grooves 111 matches to the switching shape of the teeth 30 required.

The retainer provided by the utility model can be used avoiding the labial bracket 40 of a patient, and the patient can still normally use the retainer when wearing the labial bracket 40. Preferably, referring to FIG. 4, the depth of the positioning cavity 11 is less than the distance between the labial bracket 40 on the patient's face and the tangent plane of the tooth 30 so that the labial bracket 40 is not covered by the positioner 10 when worn on the tooth 30.

Preferably, the positioner 10 is specifically selected from a resin material.

Preferably, the retaining wire 20 may be manufactured by 3D printing or by a heat setting process.

Preferably, the retaining wire 20 is made of titanium-nickel alloy or titanium-nickel alloy, and other retaining wire 20 materials known in the art may be used.

Preferably, the cross-sectional shape of the retaining wire 20 may be circular or oval, or other cross-sectional shapes known in the art.

Preferably, the retaining wire 20 and lingual side of the tooth 30 are adhesively secured by photo-curing of a dental-specific photo-sensitive resin.

In a specific embodiment, 3 fastening portions 12 are provided on the positioner 10, two ends of the retaining wire 20 are respectively connected to the fastening portions 12 located on the left and right sides, and the middle portion of the retaining wire 20 is connected to one fastening portion 12 located between the two sides. Of course, the number and location of the fastening portions 12 are not particularly limited in the present utility model, and should be determined according to the specific correction requirements.

The retainer provided by the utility model is individually designed according to the tooth condition and the correction target of a patient, and the manufacturing method is as follows:

s1, a module taking step: obtaining teeth 30 data in the oral cavity of a patient through CT scanning, and converting the dental model into a three-dimensional model through reconstructing a tooth 30 model;

s2, designing: selecting a plane of the retaining wire 20, drawing a three-dimensional retaining wire 20 shape model on the plane according to the dental arch shape, and designing a heat setting mold with grooves and a retaining wire 20 positioner 10 model according to the three-dimensional retaining wire 20 model.

S3, shaping: the holding wire 20 to be shaped is placed into a heat-shaping die and heat-processed for shaping.

In the above steps S2 and S3, the holding wire 20 is manufactured by heat setting. In addition, the holding wire 20 may be manufactured by 3D printing, and the three-dimensional holding wire 20 shape data in the step S2 is imported into a 3D printing apparatus, and then a real holding wire 20 is printed out.

The application method of the utility model is as follows: the retainer 10 is worn on the teeth 30, the groove 111 in the positioning cavity 11 is sleeved on the cut end of the teeth 30, the retaining wire 20 is fixed at the position of the clamping part 12, and the positioning of the retaining wire 20 is completed, and at the moment, the retaining wire 20 and the lingual side of the teeth 30 are accurately and tightly attached. Finally, the retaining wire 20 is adhesively secured by photocuring with a dental-specific photosensitive resin at the lingual contact location of the retaining wire 20 and the tooth 30.

The above embodiments are only preferred embodiments of the present utility model, and the scope of the present utility model is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present utility model are intended to be within the scope of the present utility model as claimed.

Claims

1. A lingual retainer comprising: a positioner (10) and a retaining wire (20); a positioning cavity (11) which is suitable for being matched with the cutting end of the teeth (30) of the patient is formed in the positioner (10), a clamping part (12) is arranged on the side part of the positioner (10) along the lingual direction, and the clamping part (12) is suitable for being connected with the retaining wire (20) in a matching way; the retaining wire (20) is in a shape manufactured according to the personalized correction target of the patient; the retaining wire (20) is connected to the buckling part (12) of the positioner (10) so that the retaining wire (20) is attached to the lingual side of the teeth (30); the retaining wire (20) is used for being adhered and fixed with the lingual side of the tooth (30).

2. Lingual retainer according to claim 1, wherein said retaining wire (20) is provided with a plurality of U-shaped curved structures (21).

3. The lingual retainer of claim 1 wherein said positioning cavity (11) further includes a plurality of grooves (111) therein, said grooves (111) being in one-to-one correspondence with the cut-end shapes of the teeth (30) to be corrected by the patient.

4. Lingual retainer according to claim 1 wherein the depth of said positioning cavity (11) is less than the distance between the labial bracket (40) on the patient's tooth surface and the tangent plane of the tooth (30).

5. Lingual retainer according to claim 1, wherein said retainer (10) is a resin retainer (10).

6. Lingual retainer according to claim 1, wherein said retaining wire (20) is a retaining wire (20) made by 3D printing or a retaining wire (20) made by a heat setting process.

7. Lingual retainer according to claim 1, wherein said retaining wire (20) is a titanium-nickel alloy or a titanium-nickel base alloy.

8. Lingual retainer according to claim 1, wherein said retaining wire (20) has a circular or oval cross-sectional shape.

9. Lingual retainer according to claim 1 wherein said retaining wire (20) and said lingual side of said tooth (30) are light cured by a dental specific light sensitive resin for adhesive securement.

10. Lingual retainer according to claim 1, wherein said retainer (10) is provided with 3 snap parts (12), both ends of said retaining wire (20) are connected to said snap parts (12) located at both left and right sides, respectively, and a middle part of said retaining wire (20) is connected to said snap parts (12) located between both sides.