A film-pressing retention type orthodontic lip bumper

Abstract

The utility model belongs to the orthodontic technical field, concretely relates to a kind of orthodontic lip block of membrane pressing retention, including membrane pressing retention layer, the membrane pressing retention layer includes membrane pressing base plate and stopper, the stopper is symmetrically adsorbed to membrane pressing base plate outside, stainless steel wire is embedded on the stopper, two ends of the stainless steel wire are connected with membrane pressing base plate, the middle part of the stainless steel wire is equipped with protrusion.The utility model not only improves the retention stability of lip block, also improves the comfort and aesthetic property of wearing, simultaneously improves cleaning efficiency, effectively improves oral hygiene condition.

Description

Technical Field

[0001] This utility model belongs to the field of orthodontic technology, specifically relating to a pressure-film retention type orthodontic lip guard. Background Technology

[0002] Traditional orthodontic lip guards consist of a lip guard wire and a resin base. The lip guard wire is placed on the labial side of the anterior teeth to block pressure from the lip muscles, while the resin base covers the palatal mucosa in the maxillary molar region to provide retention support.

[0003] However, traditional orthodontic lip guards have the following drawbacks:

[0004] (1) Poor comfort: Traditional resin base is thick (≥2mm) with sharp edges on the lips, which can easily rub against the lip mucosa when speaking or eating, causing patients to feel a strong foreign body sensation. It also compresses the palatal mucosa, causing tenderness or even ulcers. Clinical statistics show that the mucosal damage rate is as high as 60%. It is bulky and uncomfortable for patients.

[0005] (2) Insufficient retention stability: The fit between the resin base and the tooth surface depends on manual fabrication, and gaps are prone to appear at the edges, which can lead to the device falling off or food impaction. The clinical statistics show that the failure rate is about 30%.

[0006] (3) Insufficient aesthetics: The resin base has low transparency, with a light transmittance of <50%, which affects the appearance when exposed, resulting in low patient willingness to wear it, with only 25%;

[0007] (4) Difficult to clean: Food residue is easily left at the connection between the lip guard wire and the resin base, which takes a long time to clean and increases the risk to oral hygiene. Utility Model Content

[0008] To address the aforementioned issues, this invention provides a pressure-film retention type orthodontic lip guard, which not only improves the retention stability of the lip guard but also enhances wearing comfort and aesthetics, while simultaneously increasing cleaning efficiency.

[0009] To achieve the above objectives, the technical solution of this utility model is as follows: a pressure-retaining orthodontic lip retainer, comprising a pressure-retaining layer, the pressure-retaining layer comprising a pressure-retaining base and a retainer block, the retainer block being symmetrically adsorbed on the outside of the pressure-retaining base, the retainer block being embedded with a stainless steel wire, the two ends of the stainless steel wire being connected to the pressure-retaining base, and the middle part of the stainless steel wire being provided with a protrusion.

[0010] As a further embodiment of this utility model: through holes are provided at both ends of the outer side of the pressure film base, and the two ends of the stainless steel wire are connected to the pressure film base through the through holes, and the edge of the pressure film base is rounded.

[0011] As a further improvement of this utility model: the pressure film fixation layer is made of medical-grade transparent polyurethane film, and the thickness of the polyurethane film is 0.3-0.5 mm.

[0012] As a further improvement of this utility model, the stop block and the pressure film base are connected by vacuum hot pressing technology.

[0013] As a further embodiment of this utility model: the pressure film retention layer covers the labial side of the maxillary or mandibular anterior teeth and the alveolar mucosa area, and the bottom edge of the pressure film retention layer extends to 0.5-1 mm below the gingival margin, precisely conforming to the contour of the tooth and mucosal surface.

[0014] As a further embodiment of this utility model: the diameter of the stainless steel wire is 0.9-1.1 mm, the stainless steel wire is arranged in an arc shape along the pressure film base, and the end of the stainless steel wire is flattened to form an anchor head, the width of the anchor head being 1.8-2.2 times the diameter of the stainless steel wire.

[0015] As a further improvement of this utility model: the stainless steel wire has a concave arc near the connection with the pressure film base.

[0016] As a further improvement of this utility model, the height of the protrusion is 3-4 mm.

[0017] As a further improvement of this utility model: the embedding depth of the stainless steel wire into the stop block is 0.25-0.4mm, and the embedding connection of the stop block and the stainless steel wire are both polished.

[0018] As a further improvement of this invention: the curvature of the stainless steel wire is customized according to the patient's dental arch shape, and the angle between it and the horizontal position of the pressure film retention layer is 30°-45°.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] 1. This utility model uses a pressure film material to make a pressure film retention layer, and forms a composite structure with stainless steel wire through a hot pressing process. This avoids the problem of traditional base and stainless steel wire easily falling off, which reduces the thickness of the pressure film base by 60%, reduces mucosal pressure, greatly reduces the incidence of ulcers and the rate of mucosal damage, and significantly improves wearing comfort.

[0021] 2. This invention reduces the bonding error between the pressure-molded retention layer and the tooth surface, significantly improving retention force and reducing the clinical detachment rate from 30% to 8%;

[0022] 3. The pressure film retention layer of this utility model uses transparent pressure film material, which improves the aesthetics of the orthodontic lip guard and increases the willingness of adult patients to wear it;

[0023] 4. This utility model adopts an integrated structure without gaps, and can be directly rinsed with water or cleaned with ultrasound. The cleaning time is shortened, the cleaning efficiency is improved, and the oral hygiene is effectively improved. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the pressure-film retention type orthodontic lip guard of this utility model.

[0025] In the diagram: 1. Press-fit retaining layer; 11. Press-fit base; 12. Stop; 13. Through hole; 2. Stainless steel wire; 21. Protrusion; 22. Concave arc Detailed Implementation

[0026] 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.

[0027] refer to Figure 1 A pressure-retention type orthodontic lip guard includes a pressure-retention layer 1, which includes a pressure-retention base 11 and a block 12. The block 12 is symmetrically attached to the outside of the pressure-retention base 11. A stainless steel wire 2 is embedded in the block 12. The two ends of the stainless steel wire 2 are connected to the pressure-retention base 11. A protrusion 21 is provided in the middle of the stainless steel wire 2 to form a barrier to prevent abnormal lip movement.

[0028] Through holes 13 are provided at both ends of the outer side of the pressure film base 11. The two ends of the stainless steel wire 2 are connected to the pressure film base 11 through the through holes 13. The edge of the pressure film base 11 is rounded.

[0029] The pressure-supported fixation layer 1 uses a medical-grade transparent polyurethane membrane, which is elastic and biocompatible. The thickness of the polyurethane membrane is 0.3-0.5 mm, and the light transmittance is ≥90%.

[0030] The stop block 12 and the pressure film base 11 are connected by vacuum hot pressing technology. After the stop block is softened at 65-75℃, it is adsorbed onto the pressure film base, and the forming accuracy reaches ±0.08mm.

[0031] The pressure-film retention layer 1 covers the labial side of the maxillary or mandibular anterior teeth and the alveolar mucosa area. The bottom edge of the pressure-film retention layer 1 extends 0.5-1 mm below the gingival margin, precisely conforming to the contours of the tooth and mucosal surfaces.

[0032] The stainless steel wire 2 has a diameter of 0.9-1.1 mm. The stainless steel wire 2 is arranged in an arc shape along the pressure film base 11. The end of the stainless steel wire 2 is flattened to form an anchor head. The width of the anchor head is 1.8-2.2 times the diameter of the stainless steel wire 2.

[0033] The stainless steel wire 2 has a concave arc 22 near the connection with the pressure film base 11.

[0034] The height of protrusion 21 is 3-4 mm.

[0035] The stainless steel wire 2 is embedded into the stop block 12 to a depth of 0.25-0.4 mm. The embedded connection of the stop block 12 and the stainless steel wire 2 are polished and there are no exposed burrs.

[0036] The curvature of the stainless steel wire 2 is customized according to the patient's dental arch shape, and the angle between it and the horizontal position of the pressure film retention layer 1 is 30°-45°, which can both block abnormal lip muscle force and not affect normal lip closure.

[0037] The operation process of this utility model is as follows:

[0038] (1) Imaging and design: Scan the patient's oral cavity to obtain a three-dimensional model, and design the edge morphology of the pressure film retention layer and the position of the stainless steel wire;

[0039] (2) Press molding: The polyurethane membrane material is heated to a softened state and vacuum hot-pressed onto the press molding base. After cooling, a press molding retention layer is formed (cooling time ≤ 30 seconds).

[0040] (3) Stainless steel wire embedding: bend the stainless steel wire according to the designed curvature, place it at the predetermined position on the lip side of the pressure film fixing layer, and then hot press again (temperature 55-60℃, pressure 0.4-0.6 MPa) to embed the stainless steel wire into the stop block, with the embedding depth controlled at 0.3-0.4 mm.

[0041] (4) Clinical wearing: Orthodontic lip guards adhere to the teeth through the elastic retention force of the pressure film retention layer. No adhesive is required. Patients can remove and wear them themselves and clean them 1-2 times a day.

[0042] Clinical data of this invention show that the incidence of ulceration of this orthodontic lip guard has decreased from 42% to below 5%, the mucosal damage rate has decreased from 60% to below 5%, the retention force has increased by 60%, the clinical shedding rate has decreased from 30% to 8%, the patient willingness to wear it has increased from 25% to 85%, the single cleaning time has been shortened to within 3 minutes, oral hygiene has improved, and the plaque index has decreased by 40%.

[0043] 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 pressure-film retention type orthodontic lip stop, characterized in that: It includes a pressure film retention layer (1), which includes a pressure film base (11) and a stop (12). The stop (12) is symmetrically adsorbed on the outside of the pressure film base (11). A stainless steel wire (2) is embedded on the stop (12). The two ends of the stainless steel wire (2) are connected to the pressure film base (11). A protrusion (21) is provided in the middle of the stainless steel wire (2).

2. The pressure-film retention type orthodontic lip stop according to claim 1, characterized in that: The outer ends of the pressure film base (11) are provided with through holes (13), and the two ends of the stainless steel wire (2) are connected to the pressure film base (11) through the through holes (13). The edge of the pressure film base (11) is rounded.

3. The pressure-film retention type orthodontic lip stop according to claim 2, characterized in that: The pressure-supported fixation layer (1) is made of medical-grade transparent polyurethane membrane, and the thickness of the polyurethane membrane is 0.3-0.5 mm.

4. The pressure-film retention orthodontic lip stop according to claim 3, characterized in that: The stop block (12) and the pressure film base (11) are connected by vacuum hot pressing technology.

5. The pressure-film retention orthodontic lip stop according to claim 4, characterized in that: The pressure-retention layer (1) covers the labial side of the maxillary or mandibular anterior teeth and the alveolar mucosa area. The bottom edge of the pressure-retention layer (1) extends to 0.5-1 mm below the gingival margin, precisely conforming to the contour of the tooth and mucosa surface.

6. The pressure-film retention orthodontic lip stop according to claim 5, characterized in that: The stainless steel wire (2) has a diameter of 0.9-1.1 mm. The stainless steel wire (2) is arranged in an arc shape along the pressure film base (11). The end of the stainless steel wire (2) is flattened to form an anchor head. The width of the anchor head is 1.8-2.2 times the diameter of the stainless steel wire (2).

7. The pressure-film retention orthodontic lip stop according to claim 6, characterized in that: The stainless steel wire (2) has a concave arc (22) near the connection with the pressure film base (11).

8. The pressure-film retention type orthodontic lip stop according to claim 7, characterized in that: The height of the protrusion (21) is 3-4 mm.

9. The pressure-film retention orthodontic lip stop according to claim 8, characterized in that: The stainless steel wire (2) is embedded into the stop block (12) to a depth of 0.25-0.4 mm. The embedded connection of the stop block (12) and the stainless steel wire (2) are both polished.

10. The pressure-film retention orthodontic lip stop according to claim 9, characterized in that: The curvature of the stainless steel wire (2) is customized according to the patient's dental arch shape, and the angle between it and the horizontal position of the pressure film retention layer (1) is 30°-45°.

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