Unilateral alveolar split newborn maxilla orthopedic device

By adding a buccal traction attachment and a cushioning liner to the maxillary orthodontic appliance for newborns with alveolar clefts, the problem of unsatisfactory alveolar bone orthodontic results was solved, achieving precise expansion of the maxillary alveolar bone and improving patient comfort, simplifying clinical operation and improving treatment efficiency.

CN223930237UActive Publication Date: 2026-02-24SHANGHAI NINTH PEOPLES HOSPITAL SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE
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Patent Information

Application Number
CN202520342976.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-28
Publication Date
2026-02-24
Estimated Expiration
2035-02-28

AI Technical Summary

Technical Problem

Existing orthodontic appliances for unilateral alveolar cleft neonates cannot effectively expand the width of the maxillary alveolar bone after initial installation, resulting in unsatisfactory alveolar bone correction effects and poor patient experience.

Method used

Adding buccal traction attachments to the edge of the palatal plate of the orthodontic device creates tension on the gingival tissue, promoting buccal alveolar bone growth. Combined with cushioning lining and retention stabilizing attachments, this improves the device's comfort and retention.

Benefits of technology

It enables precise and controllable movement of the maxillary alveolar bone, increases lateral width, improves alveolar bone morphology, enhances treatment outcomes and patient experience, and lays the foundation for subsequent surgical procedures.

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Abstract

The unilateral alveolar split newborn maxilla orthopedic device comprises a palate plate and a retention stabilizing accessory, buccal side stretching accessories are connected to the outer portions of the left side edge and the right side edge of the palate plate, the material of the buccal side stretching accessories is softer than that of the palate plate, and the buccal side stretching accessories and the palate plate are of an integrated structure; the cheek side stretching accessory upwards protrudes out of the outer parts of the left and right side edges of the palate plate. The cheek side distraction accessory can generate an outward distraction effect on gingival tissues at the maxillary vestibular sulcus part, promote formation of new bones at the cheek side of maxillary alveolar bones, realize accurate quantitative controllable movement of alveolar bone sections, particularly effectively increase the transverse width, improve the comfort of the distraction effect due to the design of the edge buffer soft lining, and improve the safety of the distraction of the maxillary alveolar bones. The treatment effect is improved.
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Description

Technical Field

[0001] This utility model relates to a maxillary orthodontic device for newborns with unilateral alveolar cleft, belonging to the field of medical device technology. Background Technology

[0002] Congenital alveolar cleft is the most common congenital malformation of the oral and maxillofacial region. It not only affects oral functions such as speech and eating, but also impacts facial appearance, causing significant psychological burden and serious mental distress. For patients with severe malformations, early intervention is necessary starting in the neonatal stage, namely preoperative nasal-alveolar bone reshaping therapy, which corrects the maxillary alveolar bone deformity non-surgically.

[0003] Existing neonatal maxillary orthodontic devices for unilateral alveolar cleft only provide a growth space for the maxillary alveolar bone segment to be corrected after initial installation using a palatal plate. Therefore, they cannot effectively expand the transverse width of the maxillary alveolar bone, resulting in unsatisfactory results in shaping the width of the maxillary alveolar bone. This leads to a poor experience for patients during treatment and causes inconvenience for users.

[0004] Therefore, this utility model proposes a buccal traction attachment for a unilateral alveolar cleft neonatal jawbone orthodontic device. Summary of the Invention

[0005] The purpose of this invention is to provide a newborn alveolar bone orthodontic device for unilateral alveolar cleft, which adds a buccal traction attachment. The attachment generates traction on the buccal gingival mucosa of the left and right maxillary alveolar bone segments of the patient with unilateral alveolar cleft. The traction is transmitted to the buccal surface of the alveolar bone, so that the alveolar bone obtains a buccal growth effect.

[0006] The present invention adopts the following technical solution:

[0007] A unilateral alveolar cleft neonatal maxillary orthodontic device includes a palatal plate 1 and a retention and stabilization attachment 5. The outer sides of the left and right edges of the palatal plate 1 are connected to a buccal traction attachment 2. The buccal traction attachment 2 is made of a softer material than the palatal plate 1 and is integrally formed with the palatal plate 1. The buccal traction attachment 2 protrudes upward beyond the outer sides of the left and right edges of the palatal plate 1.

[0008] Preferably, the palatal plate 1 is made of rigid plastic, and the buccal tensioning attachment 2 is made of soft plastic.

[0009] Furthermore, the buccal tension attachment 2 is also wrapped with a palatal edge buffer liner 3, which is made of a softer plastic material than the buccal tension attachment 2.

[0010] Preferably, the front part of the palatal plate 1 is provided with a premaxillary baffle 4, and the bottom of the palatal plate 1 is connected with a fixation and stabilization attachment 5, which has a columnar structure.

[0011] Furthermore, the lower part of the fixation and stabilization attachment 5 is provided with a groove 6 for fixing the traction rubber band.

[0012] Furthermore, the palatal plate edge buffer liner 3 and the buccal tension attachment 2 are an integrated structure, and the thickness of the palatal plate 1 is 2.5 mm.

[0013] Furthermore, the buccal tension attachment 2 and the palatal plate edge buffer liner 3 are movably connected, and both the buccal tension attachment 2 and the palatal plate edge buffer liner 3 are provided in two sets.

[0014] Furthermore, the buccal traction attachment 2 is ridge-shaped, and the thickness of the buccal traction attachment 2 is 2.5 mm and the height is 3 mm.

[0015] Furthermore, the fixation and stabilization attachment 5 and the palatal plate 1 are an integrated structure, and the included angle between the palatal plate 1 and the fixation and stabilization attachment 5 is 45 degrees.

[0016] Furthermore, the fixation and stabilization attachment 5 is cylindrical, and the groove 6 on the fixation and stabilization attachment 5 has a width of 2.0 mm and a depth of 1.0 mm.

[0017] The beneficial effects of this utility model are as follows:

[0018] 1) The buccal traction attachment can exert an outward traction effect on the gingival tissue in the maxillary vestibule, promote the formation of new bone on the buccal side of the maxillary alveolar bone, and achieve precise and controllable movement of the alveolar bone segment, especially effectively increasing the lateral width.

[0019] 2) The design of the edge-cushioned soft lining improves the comfort of this traction effect and enhances the therapeutic effect;

[0020] 3) It solves the problems of traditional preoperative orthodontic appliances having smooth tissue surfaces, poor retention, and difficulty in exerting orthodontic force, allowing the orthodontic appliance to attach better to the maxillary gingival tissue surface and have better retention.

[0021] 4) The application of orthodontic devices is accurate and reliable. It can significantly promote the transverse width of the maxillary alveolar bone in newborns with unilateral complete cleft lip and palate, reduce the degree of jaw deformity, and improve the morphology of the maxillary alveolar bone. This refined preoperative orthodontic system can simplify clinical operations, improve treatment efficiency, improve the patient experience, and lay a good foundation for subsequent surgical reconstructive surgery. It can also make the comprehensive sequential treatment system for cleft lip and palate more and more perfect, generating good social and economic benefits. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the new invention: a unilateral alveolar cleft neonatal maxillary orthodontic device.

[0023] Figure 2 This is a cross-sectional schematic diagram of the new invention: a unilateral alveolar cleft neonatal maxillary orthodontic device.

[0024] In the diagram: 1. Palatal plate; 2. Buccal traction attachment; 3. Palatal plate edge cushioning liner; 4. Premaxillary baffle; 5. Retention and stabilization attachment; 6. Groove. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0026] This invention provides a unilateral alveolar cleft neonatal jawbone orthodontic device with a buccal traction attachment, which solves the problem that orthodontic devices are difficult to apply precise and controllable orthodontic force to the maxillary alveolar bone segment during use, and cannot effectively expand the transverse width of the maxillary alveolar bone, thus resulting in unsatisfactory jawbone shaping effect, thereby improving the patient's experience during treatment.

[0027] A buccal traction attachment is set at the edge of the palatal plate of the unilateral alveolar cleft neonatal jawbone orthodontic device. This attachment can generate traction on the gingival tissue on the buccal side of the maxillary alveolar bone. The traction on the gingival tissue is transmitted to the buccal side of the alveolar bone, stimulating bone deposition on the buccal side of the maxillary alveolar bone, thereby increasing the lateral width of the maxillary alveolar bone, so that the growth of the maxilla can adapt to the effect of jawbone orthodontics.

[0028] Please see Figure 1-2 A maxillary orthodontic device for unilateral alveolar cleft neonates includes a palatal plate 1 and a retention and stabilization attachment 5. A buccal traction attachment 2 is connected to the middle of the palatal plate 1, and a soft liner 3 is placed on its upper part. A premaxillary baffle 4 is placed at the front of the palatal plate 1, and the retention and stabilization attachment 5 is connected to the bottom of the palatal plate 1, with a groove 6 at its lower end. The palatal plate 1 and its edge are an integrated structure, and the palatal plate 1 is 2.5 mm thick. During use, the softness of the palatal plate edge prevents direct contact between the maxillary alveolar ridge and hard palate and the palatal plate 1. This improves the comfort of palatal plate 1 after placement and also enhances the overall durability of its structure. The buccal tension attachment 2 and the soft liner 3 are connected by a movable connection, and both the buccal tension attachment 2 and the soft liner 3 are provided in two sets. The two sets of buccal tension attachment 2 and soft liner 3 allow them to fit against the buccal gingival mucosa of the maxillary alveolar bone segment on the left and right sides of the unilateral alveolar cleft, thus facilitating the fixation of the attachment. The soft liner 3 also improves the comfort of the buccal tension attachment 2 when it is engaged, while the movable connection structure of the soft liner 3 facilitates cleaning and replacement after use.

[0029] The buccal traction attachment 2 is fin-shaped, with a thickness of 2.5 mm and a height of 3 mm. Through the fin-shaped structure of the buccal traction attachment 2, during use, the buccal traction attachment extends deep into the gingival mucosa of the vestibular sulcus, causing the protruding edge to pull on the tissue surface of the gingival mucosa. The resulting tension promotes the growth of alveolar bone towards the buccal direction, increasing the lateral width of the maxillary alveolar bone, thereby producing an orthodontic effect.

[0030] The retention and stabilization attachment 5 is an integrated structure with the palatal plate 1, and the included angle between the palatal plate 1 and the retention and stabilization attachment 5 is 45 degrees. During use, the retention and stabilization attachment 5 forms a 40-degree angle with the occlusal plane. The retention and stabilization attachment 5 effectively supports the palatal plate 1, thereby improving the stability of the palatal plate 1 during use. The integrated structure between the retention and stabilization attachment 5 and the palatal plate 1 also enhances the robustness of the connection structure. The retention and stabilization attachment 5 is cylindrical, with a groove 6 on it that is 2.0 mm wide and 1.0 mm deep. The retention and stabilization attachment 5 is a cylindrical structure with a length of 12.0 mm and a diameter of 4.0 mm. This structure facilitates the retention of the orthodontic device, and the groove 6 facilitates the fixation of the traction elastic band, preventing it from slipping during use and thus improving safety during use.

[0031] Working Principle: For this type of buccal traction attachment in neonatal jawbone orthotics for unilateral alveolar cleft, the palatal plate 1 is first installed. The palatal plate 1 and its edge are an integrated structure, and the thickness of the palatal plate 1 is 2.5mm. During use, the softness of the palatal plate edge prevents direct contact between the maxillary alveolar ridge and hard palate and the palatal plate 1, improving the comfort after placement and enhancing the overall durability. The two sets of buccal traction attachments 2 and the soft liner 3 are then installed to ensure contact with the buccal gingival mucosa of the maxillary alveolar bone segments on both sides of the unilateral alveolar cleft, facilitating the fixation of the attachment. The soft liner 3 further enhances the stability of the buccal traction attachments 2. The device provides comfort during occlusion, while the movable connection structure of the soft liner 3 facilitates cleaning and replacement after use. The ridge-like structure and fin-like protrusions of the buccal traction attachment 2 pull on the gingival mucosa, generating a traction effect that promotes alveolar bone growth towards the buccal direction, increasing the lateral width of the maxillary alveolar bone. During use, the retention and stabilization attachment 5 forms a 40-degree angle with the occlusal plane, effectively supporting the palatal plate 1. The groove 6 facilitates the fixation of the traction elastic band, preventing slippage during use and thus improving safety. Finally, the entire buccal traction attachment of the unilateral alveolar cleft neonatal jawbone orthodontic device is used.

[0032] The palatal plate edge of the buccal traction attachment of this unilateral alveolar cleft neonatal jawbone orthodontic device is an integrated structure, and the thickness of the palatal plate is 2.5mm. Through the setting of the buffer edge, direct contact between the maxillary buccal vestibular sulcus gingival mucosa and the palatal plate is avoided during use. The soft properties of the edge improve the comfort after the palatal plate is placed, and the integrated structure of the soft lining and the palatal plate improves the durability of its overall structure.

[0033] This unilateral alveolar cleft neonatal jawbone orthodontic device features two sets of buccal traction attachments and a soft liner. These two sets of attachments and liner ensure proper fit with the gingival mucosa of the maxillary vestibule on both sides of the unilateral alveolar cleft. The soft liner enhances comfort during attachment engagement, while its structure facilitates cleaning and replacement after use. The buccal traction attachments are fin-shaped, with each attachment being 2.5mm thick and 3mm high. This fin-like structure allows for easy extension of the attachments into the deep gingival mucosa of the vestibule, causing the protruding edges to pull on the mucosa. This traction effect promotes alveolar bone growth towards the buccal region, increasing the lateral width of the maxillary alveolar bone and thus achieving an orthodontic effect.

[0034] The buccal traction attachment 2 of this unilateral alveolar cleft neonatal jawbone orthodontic device has an integrated retention and stabilization attachment 5 with the palatal plate 1, and the angle between the palatal plate 1 and the retention and stabilization attachment 5 is 45 degrees. During use, the retention and stabilization attachment 5 forms a 40-degree angle with the occlusal plane. The retention and stabilization attachment effectively supports the palatal plate 1, thereby improving the stability of the palatal plate during use. The integrated structure between the retention and stabilization attachment 5 and the palatal plate 1 also enhances the robustness of the connection structure. Furthermore, the retention and stabilization attachment is cylindrical, with a groove 6 on the retention and stabilization attachment 5 that is 2.0 mm wide and 1.0 mm deep. The retention and stabilization attachment 5 is a cylindrical structure with a length of 12.0 mm and a diameter of 4 mm. This structure facilitates the retention of the orthodontic device, and the groove 6 facilitates the fixation of the traction elastic band, preventing slippage during use and thus improving safety.

[0035] It should be noted that traction-type orthodontic treatment targeting the maxilla or teeth is an existing technology. This application mainly provides a maxillary traction-type orthodontic device for unilateral alveolar cleft in newborns. Since all the teeth of the newborn have not yet erupted (within 30 days of birth), the attachment material for traction in this application is made of soft plastic with a smooth surface and a fin-like shape. The traction tension is 200g, which is lower than the traction tension of about 800g for metal "traction hooks" used in the prior art for maxillary orthodontic treatment of adolescents.

[0036] This novel buccal traction attachment can exert inward traction on the gingival tissue in the maxillary vestibule, promoting new bone formation on the buccal side of the maxillary alveolar bone. This allows for precise and controllable movement of the alveolar bone segment, particularly increasing its lateral width. The edge-buffered soft lining design enhances the comfort of this traction effect and improves treatment outcomes. It solves the problems of traditional preoperative orthodontic devices having smooth tissue surfaces, poor retention, and difficulty in exerting corrective force, allowing the device to better attach to the maxillary gingival tissue surface and achieve better retention. The orthodontic device is accurate and reliable, significantly promoting the lateral width of the maxillary alveolar bone in newborns with unilateral complete cleft lip and palate, reducing the degree of jaw deformity, and improving the morphology of the maxillary alveolar bone. This refined preoperative orthodontic system simplifies clinical operation, improves treatment efficiency, enhances the patient experience, and lays a good foundation for subsequent surgical reconstructive surgery. This further perfects the comprehensive sequential treatment system for cleft lip and palate, generating significant social and economic benefits.

[0037] The above are preferred embodiments of the present utility model. Those skilled in the art can make their own modifications or improvements based on this. Without departing from the overall concept of the present utility model, these modifications or improvements should all fall within the scope of protection claimed by the present utility model.

Claims

1. A maxillary orthodontic device for neonates with unilateral alveolar cleft, comprising a palatal plate (1) and a retention and stabilization attachment (5), characterized in that: The outer sides of the left and right edges of the palatal plate (1) are connected to a buccal tension attachment (2), which is made of a softer material than the palatal plate (1) and is integral with the palatal plate (1). The buccal stretching attachment (2) protrudes upwards from the outer edges of the left and right sides of the palatal plate (1).

2. The unilateral alveolar cleft neonatal maxillary orthodontic device as described in claim 1, characterized in that: The palatal plate (1) is made of hard plastic, and the buccal tension attachment (2) is made of soft plastic.

3. The unilateral alveolar cleft neonatal maxillary orthodontic device as described in claim 2, characterized in that: The buccal tension attachment (2) is further wrapped with a palatal edge cushioning liner (3), which is made of a softer plastic material than the buccal tension attachment (2).

4. The unilateral alveolar cleft neonatal maxillary orthodontic device as described in claim 1, characterized in that: The front part of the palatal plate (1) is provided with a premaxillary baffle (4), and the bottom of the palatal plate (1) is connected with a fixation and stabilization attachment (5), which has a columnar structure.

5. The unilateral alveolar cleft neonatal maxillary orthodontic device as described in claim 4, characterized in that: The lower part of the fixed stabilizing accessory (5) is provided with a groove (6) for fixing the traction rubber band.

6. The unilateral alveolar cleft neonatal maxillary orthodontic device as described in claim 3, characterized in that: The palatal plate edge buffer liner (3) and the buccal tension attachment (2) are an integrated structure, and the thickness of the palatal plate (1) is 2.5 mm.

7. The unilateral alveolar cleft neonatal maxillary orthodontic device as described in claim 3, characterized in that: The buccal tension attachment (2) and the palatal edge buffer liner (3) are movably connected, and both the buccal tension attachment (2) and the palatal edge buffer liner (3) are provided in two sets.

8. The unilateral alveolar cleft neonatal maxillary orthodontic device as described in claim 4, characterized in that: The buccal traction attachment (2) is ridge-shaped, and the thickness of the buccal traction attachment (2) is 2.5 mm and the height is 3 mm.

9. The unilateral alveolar cleft neonatal maxillary orthodontic device as described in claim 4, characterized in that: The fixation and stabilization attachment (5) and the palatal plate (1) are an integrated structure, and the included angle between the palatal plate (1) and the fixation and stabilization attachment (5) is 45 degrees.

10. The unilateral alveolar cleft neonatal maxillary orthodontic device as described in claim 4, characterized in that: The fixation and stabilization attachment (5) is cylindrical, and the groove (6) on the fixation and stabilization attachment (5) has a width of 2.0 mm and a depth of 1.0 mm.