Alternative dentition orthodontic retainer and kit thereof

Abstract

The utility model provides a replacement dentition orthodontic retainer and a kit thereof, the replacement dentition orthodontic retainer comprises a palatal side plate and a tooth socket part, the palatal side plate is connected with the tooth socket part, and the palatal side plate and the tooth socket part define an open area; the tooth socket part is arranged to be suitable for wrapping a first part of teeth, the open area is arranged to be located at the position of a second part of teeth, and the second part of teeth are teeth in a dentition replacement period; the tooth socket part is also provided with a first connecting structure, and the first connecting structure is suitable for being matched with a second connecting structure arranged in an oral cavity, so that the retention of the orthodontic retainer in the dentition replacement period is enhanced when the orthodontic retainer is worn.

Description

Technical Field

[0001] The utility model relates to the field of medical instruments, in particular to an orthodontic retainer for the replacement dentition period and a kit thereof. Background Art

[0002] Orthodontic treatment for children and adolescents during the period of replacement of dentition, such as for reasons such as overbite, malocclusion or impacted teeth, will change the arrangement of teeth and the structure of bones and soft tissues. However, due to the specificity of periodontal tissues, there is a tendency to return to the position before treatment, so orthodontic treatment has potential instability and recurrence. Therefore, in order to ensure the long-term stability of orthodontic treatment and reduce the recurrence rate, orthodontic retainers must be worn all day for at least one year.

[0003] Commonly used orthodontic retainers include Halley retainers, transparent retainers and lingual retainers. Transparent retainers are made by lamination and can cover the entire dentition. They have the advantages of close fit with teeth, low irritation to oral mucosa, and good appearance. However, for children and adolescents in the dentition replacement period, their lateral dentition may experience dynamic processes such as loosening and shedding of deciduous teeth and eruption of permanent teeth. Therefore, wearing traditional transparent retainers may cause the following problems:

[0004] (1) Pain and discomfort caused by loose deciduous teeth;

[0005] (2) Before loose deciduous teeth fall out, they may shift, during which time the retainer cannot be worn, affecting the retention effect;

[0006] (3) The newly erupted permanent teeth are interfered with by the retainer and cannot erupt normally;

[0007] (4) The crowns of teeth during the replacement dentition period are relatively short, resulting in poor retention of transparent retainers. Utility Model Content

[0008] In view of the problems in the prior art, the utility model provides an orthodontic retainer for the replacement dentition period, the orthodontic retainer for the replacement dentition period comprising a palatal plate and a braces portion, the palatal plate being connected to the braces portion, and the two define an open area; the braces portion is configured to be suitable for wrapping a first portion of teeth, and the open area is configured to be located at the position of a second portion of teeth, and the second portion of teeth are teeth in the replacement dentition period; the braces portion is also provided with a first connecting structure, the first connecting structure being suitable for cooperating with a second connecting structure arranged in the oral cavity, so as to enhance the retention of the orthodontic retainer for the replacement dentition period when worn.

[0009] Furthermore, the contour of one side of the palatal plate is adapted to the contour of the upper palate of the patient.

[0010] Furthermore, the first part of teeth includes central incisors, lateral incisors and first molars.

[0011] Furthermore, the second part of teeth includes deciduous canines, first deciduous molars and second deciduous molars.

[0012] Furthermore, the second connection structure is an attachment adhered to the first part of teeth, and the first connection structure is a groove matched with the attachment.

[0013] Further, an attachment corresponding to the groove is arranged on all or part of the teeth of the first part.

[0014] Further, an attachment corresponding to the groove is arranged on the labial and buccal side and / or the lingual side of the first part of teeth.

[0015] Furthermore, the coverage area of ​​the palatal plate extends to the distal surface of the first molar.

[0016] Furthermore, the palatal plate and the braces portion are integrally formed.

[0017] The utility model also provides an orthodontic retainer kit for the alternate dentition period, wherein the orthodontic retainer kit for the alternate dentition period comprises the above-mentioned orthodontic retainer for the alternate dentition period and a second connecting structure used in conjunction with the orthodontic retainer for the alternate dentition period.

[0018] In view of the current situation that there are no retainers specifically designed for the dentition replacement period on the market, the utility model's orthodontic retainer for the dentition replacement period is designed to follow the tooth growth patterns of children and adolescents during the dentition replacement period. By providing an open area to expose the deciduous teeth that are in a dynamic process, it avoids the pain and discomfort of loose deciduous teeth that may be caused by wearing traditional transparent retainers; the retainer cannot be worn due to tooth displacement before the loose deciduous teeth fall out; the newly erupted permanent teeth cannot erupt normally due to interference from the retainer, and other problems. At the same time, by providing a palatal side plate and a groove used with accessories, on the one hand, the large area of ​​the palatal side plate can make the overall structure more stable and ensure the stability of the retainer. On the other hand, the cooperation of the accessories and the groove enhances the retention of the retainer, effectively solving the problem of poor retention due to the relatively short crowns of the dentition replacement period.

[0019] The concept, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of an orthodontic retainer for the dentition replacement period according to an embodiment of the utility model;

[0021] Figure 2 yes Figure 1Schematic diagram of an orthodontic retainer after wearing in the dentition replacement period, wherein the central incisor, lateral incisor and first molar are covered by the brace portion 200, and the deciduous canines, first deciduous molars and second deciduous molars are exposed in the open area 300.

[0022] Description of reference numerals:

[0023] 100—palatal plate,

[0024] 200—Braces Department,

[0025] 210—groove,

[0026] 300—Open area. DETAILED DESCRIPTION

[0027] In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. The drawings are schematic diagrams or conceptual diagrams, and the relationship between the thickness and width of each part, the proportional relationship between the parts, etc., are not completely consistent with their actual values.

[0028] Existing transparent retainers may cause pain and discomfort to loose deciduous teeth when worn by children and adolescents in the replacement dentition period; retainers cannot be worn because of tooth displacement before the loose deciduous teeth fall out; newly erupted permanent teeth cannot erupt normally due to interference from retainers; and retention is poor because tooth crowns are relatively short in the replacement dentition period.

[0029] Figure 1 A schematic structural diagram of an orthodontic retainer for the alternating dentition period according to an embodiment of the utility model is shown, which includes a palatal plate 100 and a brace portion 200 . The palatal plate 100 is connected to the brace portion 200 , and the two define an open area 300 .

[0030] The orthodontic retainer for the alternate dentition period of this embodiment is worn on the maxillary dentition, wherein the palatal plate 100 corresponds to the upper palate of the patient, and preferably the contour of one side thereof is adapted to the contour of the upper palate of the patient, so that when the retainer is worn, the palatal plate 100 can fit the upper palate of the patient. The braces portion 200 is connected to the edge of the palatal plate 100, distributed along the dental arch shape, and is configured to be suitable for wrapping the first part of the teeth. The arrangement of the braces portion 200 on the edge of the palatal plate 100 is not continuous, and there is a gap therein, which defines an open area 300. The open area 300 is arranged on the second part of the teeth, so that when the patient wears the retainer, the braces portion 200 does not wrap the entire dentition, but only wraps the first part of the teeth, while the second part of the teeth is exposed to the open area 300 and is in an open state, so that the retainer does not form an obstruction or resistance to the growth and change of the second part of the teeth, such as Figure 2 shown.

[0031] In the present application, the first part of teeth and the second part of teeth are distinguished according to the state of the maxillary teeth in the corresponding replacement dentition period, wherein the first part of teeth are permanent teeth that have grown out after the deciduous teeth have fallen out or permanent teeth that have grown directly in the replacement dentition period, that is, teeth with stable states; the second part of teeth are teeth or their tooth positions (when the teeth have fallen out) involved in the process from the shedding of deciduous teeth to the growing of permanent teeth in the replacement dentition period.

[0032] In this embodiment, the first part of teeth includes central incisors, lateral incisors and first molars. Usually, permanent teeth have grown out of the above teeth before the age of 9 in children and adolescents. The second part of teeth includes deciduous canines, first deciduous molars and second deciduous molars. Usually, the above teeth will be replaced when children and adolescents are around 10 to 12 years old. Therefore, when the orthodontic retainer for the replacement dentition period of this embodiment is worn, the brace part 200 can cover the central incisor, lateral incisor and first molar, and at the same time, the deciduous canines, first deciduous molars and second deciduous molars are exposed to the open area 300.

[0033] In order to enhance the retention of the retainer when it is worn, the orthodontic retainer for the alternate dentition period of this embodiment is further provided with a plurality of grooves 210 on the brace portion 200. The grooves 210 cooperate with the accessories pasted on the first part of the teeth, and the shape of the grooves 210 is adapted to the shape of the accessories used in conjunction therewith. When the orthodontic retainer for the alternate dentition period of this embodiment is worn, the brace portion 200 wraps around the first part of the teeth. At the same time, when accessories are pasted on the first part of the teeth, the accessories are confined in the corresponding grooves 210 on the brace portion 200, thereby further making the retainer less likely to fall off, which helps to enhance its retention when it is worn. In this embodiment, there is no restriction on the shape of the accessories, and the purpose is to enhance the retention of the retainer by cooperating with the accessories. Those skilled in the art may select accessories of known shapes to enhance retention, such as accessories with circular, square, triangular, cross-shaped or other cross-sections.

[0034] The position of the groove 210 on the dental brace part 200 reflects the desired position of the accessory on the corresponding tooth during design. When the retainer is made, the required accessory can be pasted on the corresponding position of the dental mold, so that the corresponding groove 210 is obtained when the retainer is made and formed. The position and number of the groove 210 (or the accessory) are set, including but not limited to the following or a combination thereof:

[0035] (1) An attachment is provided on each tooth of the first part of teeth;

[0036] (2) Attachments are provided on part of the first part of the teeth, such as attachments only on the first molars, or attachments are provided on the first molars and the central incisors or lateral incisors;

[0037] (3) The attachment is arranged on the labial and buccal side and / or the lingual side of the first part of teeth.

[0038] Connecting the brace part 200 through the palatal side plate 100 can enhance the stability of the overall structure of the retainer and prevent the retainer from affecting the retention effect of the dentition due to the setting of the open area 300. The palatal side plate 100 is preferably able to cover a larger area, such as most areas of the hard palate of the patient's upper palate. In this embodiment, the edge of the palatal side plate 100 on the side facing the direction of entering the oral cavity reaches the distal surface of the first molar.

[0039] The orthodontic retainer for the dentition replacement period of this embodiment is integrally formed, that is, the palatal plate 100 and the brace portion 200 are integrally formed. For example, the retainer can be formed by die-casting, which may specifically include the following steps:

[0040] (1) Take a maxillary cast;

[0041] (2) Make a maxillary model, including the maxillary dentition and palate;

[0042] (3) affixing attachments to all or part of the teeth in the first part of the maxillary model;

[0043] (4) forming a preliminary transparent retainer by lamination;

[0044] (5) Polishing the transparent retainer and removing the film layer covering the second part of the teeth to form an orthodontic retainer for the replacement dentition period.

[0045] In other embodiments, a digital model of the upper jaw is obtained through intraoral scanning, and further processing is performed on the basis of the above digital model, such as removing the model portion covering the second part of the teeth, adding grooves that cooperate with the accessories (the accessories can also be pasted on the teeth before intraoral scanning), etc., so as to obtain a digital alternative dentition orthodontic retainer model, and a physical retainer is manufactured using the digital alternative dentition orthodontic retainer model, such as by 3D printing.

[0046] The orthodontic retainer for the replacement dentition period of this embodiment can effectively solve the pain and discomfort caused by loose deciduous teeth that may be caused by wearing traditional orthodontic retainers in children during the replacement dentition period; the retainer cannot be worn because the loose deciduous teeth shift before they fall out; the newly erupted permanent teeth cannot erupt normally due to interference from the retainer; the crowns of teeth in the replacement dentition period are relatively short, resulting in poor retention and other problems.

[0047] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. An orthodontic retainer for the dentition period, characterized in that: It includes a palatal plate and a brace part, the palatal plate is connected to the brace part, and the two define an open area; the brace part is configured to be suitable for wrapping a first part of teeth, and the open area is configured to be located at the position of a second part of teeth, and the second part of teeth are teeth in the replacement dentition period; the brace part is also provided with a first connecting structure, and the first connecting structure is suitable for cooperating with a second connecting structure arranged in the oral cavity, so as to enhance the retention of the replacement dentition period orthodontic retainer when worn.

2. The orthodontic retainer for the dentition period according to claim 1, characterized in that: The contour of one side of the palatal plate is adapted to the contour of the patient's upper palate.

3. The orthodontic retainer for the dentition period according to claim 1, characterized in that: The first part of teeth includes central incisors, lateral incisors and first molars.

4. The orthodontic retainer for the dentition period according to claim 1, characterized in that: The second portion of teeth includes deciduous canines, first deciduous molars and second deciduous molars.

5. The orthodontic retainer for the dentition period according to claim 1, characterized in that: The second connection structure is an attachment adhered to the first part of teeth, and the first connection structure is a groove matched with the attachment.

6. The orthodontic retainer for the dentition period according to claim 5, characterized in that: Attachments corresponding to the grooves are arranged on all or part of the teeth of the first part of teeth.

7. The orthodontic retainer for the dentition period according to claim 5, characterized in that: Attachments corresponding to the grooves are arranged on the labial and buccal sides and / or lingual sides of the first part of teeth.

8. The orthodontic retainer for the dentition period as claimed in claim 3, characterized in that: The coverage area of ​​the palatal plate extends to the distal surface of the first molar.

9. The orthodontic retainer for the dentition period according to claim 1, characterized in that: The palatal plate and the brace portion are integrally formed.

10. An orthodontic retainer kit for the dentition period, characterized in that: It comprises an orthodontic retainer for the replacement dentition period as claimed in any one of claims 1 to 9, and a second connecting structure used in conjunction with the orthodontic retainer for the replacement dentition period.

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