Cheek depression repairing device

Abstract

The utility model provides a cheek recess repair device, the cheek recess repair device comprises a retainer and a repair body, the retainer is fixed on the maxillary molar buccal surface, the repair body is detachably connected with the retainer, the repair body is filled between the maxillary molar and the buccal mucosa and is used for repairing the cheek recess, the repair body comprises a binding surface and a tissue surface, and the binding surface and the tissue surface are connected with each other. The binding face is provided with a connecting piece connected with the retainer, the binding face protrudes to form a tissue face, and the tissue face makes contact with the buccal mucosa. The cheek depression repairing device can be worn in the mouth, is used for improving cheek depression, can be taken off and worn according to needs, is easy to clean, does not affect daily speech chewing of a patient, is high in comfort level, and can be used for improving the cheek depression in comparison with a traditional cheek depression improving mode. The traditional Chinese medicine has the advantages of no pain, light adverse reaction, low production cost, adjustability, instant effect and the like.

Description

Technical Field

[0001] The utility model belongs to the field of medical instruments and relates to a facial correction device, in particular to a cheek depression repairing device. Background Art

[0002] Cheek depression is very common in clinical practice, and the causes include congenital maldevelopment, emaciation, and aging changes. Cheek depression can affect the facial contour curve, making people look thin, old, and unfriendly.

[0003] Facial depression, especially cheek depression, can affect one's appearance, making one look thin and older than people of the same age. In the prior art, hyaluronic acid, autologous fat, etc. are usually used to fill facial depressions, or face lifting surgery is used to solve the problem.

[0004] Patent CN114391934A discloses a safe filling treatment method for facial depressions, including mixing the prepared peeling compound liquid through a three-way valve; moving the needle to the subcutaneous fat layer, administering the drug while inserting the needle until the edge of the designed area, administering the drug and withdrawing the needle, and changing the angle and layer, through the needle insertion and withdrawal action and liquid peeling, to achieve multi-plane and multi-tunnel, until the marked area is flattened and pressed to shape; after the operation is completed, the patient's face is cleaned.

[0005] CN114028053A discloses a facial improvement system, comprising a tension and expansion device for expanding the facial concave part from outside the oral cavity; and a facial improvement method corresponding to the system and device.

[0006] However, the above existing methods may cause certain body damage, pain and side effects, and the filling materials used, such as hyaluronic acid filling, will be gradually absorbed, requiring secondary or multiple injections for filling. In addition, each operation is prone to infection and may also have sequelae. Utility Model Content

[0007] In view of this, the utility model aims to provide a cheek depression repair device, which can improve cheek depression and make the facial contour full and smooth by wearing the repair device in the mouth.

[0008] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0009] The utility model provides a cheek depression repair device, comprising a retainer and a prosthesis, wherein the retainer is fixed to the buccal surface of the maxillary molar, the prosthesis and the retainer are detachably connected, the prosthesis is filled between the maxillary molar and the buccal mucosa to repair the cheek depression, the prosthesis comprises a fitting surface and a tissue surface, the prosthesis is provided with a connecting piece connected to the retainer, the fitting surface is raised to form a tissue surface, and the tissue surface is in contact with the buccal mucosa.

[0010] Furthermore, the number of the retainer and the connector connected to the retainer is 1-3, for example, 1, 2 or 3.

[0011] Furthermore, the restoration and the retainer are detachably connected by snapping, hooking, threading or magnetism.

[0012] Furthermore, the restoration is detachably connected to the retainer by snapping, the retainer comprises a maxillary molar adhesive and a protrusion fixed on the maxillary molar adhesive, the connecting piece is arranged on the maxillary molar fitting surface, and the connecting piece is a groove for accommodating the protrusion.

[0013] Furthermore, the protrusion is spherical, inverted cone or square, and the groove is engaged with the protrusion.

[0014] Furthermore, the number of the grooves and protrusions is 1-3.

[0015] Furthermore, the restoration and the retainer are detachably connected via a hook, the retainer comprises a maxillary molar adhesive and a slot fixed on the maxillary molar adhesive, the connecting piece is arranged on the maxillary molar fitting surface, and the connecting piece is a hook that can be engaged in the slot.

[0016] Furthermore, the number of the hooks and slots is 1-3.

[0017] Furthermore, the restoration is detachably connected to the retainer through threads, the retainer comprises a maxillary molar adhesive and a bolt fixed on the maxillary molar adhesive, the connecting member is a nut embedded in the restoration, and the nut is threadedly connected to the bolt;

[0018] Preferably, the restoration comprises a porous frame and a polymer material wrapped outside the porous frame, and the porous frame is connected to the nut.

[0019] Furthermore, the restoration is detachably connected to the retainer through magnetism, and the retainer comprises a maxillary molar adhesive, and the maxillary molar adhesive is made of magnetic material or a magnetic coating is provided on the maxillary molar adhesive.

[0020] Furthermore, the connecting member is a magnetic coating disposed on the fitting surface of the restoration, or the connecting member is a magnetic block disposed in the restoration.

[0021] Furthermore, the restoration is made of magnetic material, and the restoration is provided with a connecting piece connected to the retainer.

[0022] The contour structure of the restoration of the utility model can be determined by the following method:

[0023] A three-dimensional model of the patient's head is obtained as the initial form based on the maxillofacial CT data and facial scan data, and the alveolar bone of the maxillary posterior teeth area of ​​the three-dimensional model is longitudinally divided into several parts, and the several parts are moved outward at different amplitudes until the cheek contour reaches the target shape after restoration, the target shape being the target shape recognized by the patient, the target shape recognized by the physician, or the target shape agreed upon by the patient and the physician, and the initial contour of the restoration is set according to the outward moving area, and the initial contour includes a fitting surface and an initial tissue surface; the buccal mucosal thickness of the patient in a natural state and the rate of change of buccal mucosal thickness are measured; the initial tissue surface is increased outward by the natural buccal mucosal thickness × the rate of change of buccal mucosal thickness to obtain an adjusted tissue surface; 3D printing is performed according to the molar fitting surface and the adjusted tissue surface to obtain a restoration.

[0024] The method for measuring the buccal mucosa thickness change rate comprises the following steps:

[0025] The MRI data were used to measure the buccal mucosa thickness of the patient in the natural state and the compressed mucosa thickness of the patient with the standard restoration mold. The buccal mucosa thickness change rate = (buccal mucosa thickness in the natural state - compressed mucosa thickness) / buccal mucosa thickness in the natural state. The surface of the standard restoration mold is arc-shaped, which can be selected according to the distance of alveolar bone movement, for example, 1cm, 1.5cm, 2cm, 2.5cm, etc.

[0026] Compared with the prior art, the cheek depression repair device described in the utility model has the following advantages:

[0027] (1) The cheek depression repair device described in the utility model can be worn in the mouth to improve cheek depression. The restoration generated by establishing a three-dimensional model simulation calculation can make the facial contour full and smooth. At the same time, it can be removed and put on as needed, is easy to clean, does not affect the patient's daily speech and chewing, and is highly comfortable.

[0028] (2) Compared with the traditional method of improving cheek depression, the cheek depression repairing device described in the utility model has the advantages of being painless, having few adverse reactions, having low production cost, being adjustable, and having immediate effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0030] Figure 1 This is a schematic diagram of dividing the alveolar bone of the maxillary posterior teeth area longitudinally into three parts according to the first embodiment of the utility model;

[0031] Figure 2Schematic diagrams of the structures of the retainer and the restoration according to the first embodiment of the present invention, wherein (a) is a schematic diagram of the structure of the retainer, and (b) is a schematic diagram of the structure of the restoration;

[0032] Figure 3 Schematic diagram of the structure of the retainer and the restoration according to the second embodiment of the present invention, wherein (a) is a schematic diagram of the structure of the retainer, and (b) is a schematic diagram of the structure of the restoration;

[0033] Figure 4 Schematic diagrams of the structures of the retainer and the restoration described in Example 4 of the utility model, wherein (a) is a schematic diagram of the structure of the retainer, (b) is a schematic diagram of the structure of the restoration, and (c) is a schematic diagram of the structure of the connection between the porous frame inside the restoration and the nut.

[0034] Description of reference numerals:

[0035] 1. Maxillary molar adhesive; 2. Protrusion; 3. Prosthesis; 4. Connector; 5. Porous frame; 6. Polymer material; 7. Bolt. DETAILED DESCRIPTION

[0036] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0037] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0038] Embodiment 1

[0039] The cheek depression repair device of this embodiment includes a retainer and a restoration 3. The retainer is made of resin material. The retainer includes a maxillary molar adhesive 1 and a protrusion 2 fixed on the maxillary molar adhesive 1. The protrusion 2 is spherical. The connecting piece 4 on the fitting surface of the restoration 3 is a spherical groove for accommodating the protrusion 2. Figure 2 shown.

[0040] The restoration was prepared as follows:

[0041] The maxillofacial CT data and facial scan data were imported into the Proplan software to obtain a three-dimensional model of the patient's head as the initial shape. The alveolar bone of the maxillary posterior teeth area of ​​the three-dimensional model was divided into three parts longitudinally, namely area A, area B, and area C. Figure 1 As shown, the several portions are moved outwards at different amplitudes until the cheek contour reaches the target shape after restoration, and the horizontal distances between the tooth surface and the buccal mucosa corresponding to area A, area B, and area C are measured to be 17.17 mm, 15.29 mm, and 15.16 mm, respectively. The initial contour of the restoration 3 is set according to the outward moving area, and the initial contour includes the fitting surface and the initial tissue surface;

[0042] The thickness of the buccal mucosa in the patient's natural state was measured by MRI data, which was 12.56 mm. Then, the thickness of the compressed mucosa of the patient with a standard repair mold of 1.5 cm was measured. According to the formula, the change rate of buccal mucosa thickness = (the thickness of the buccal mucosa in the natural state - the thickness of the compressed mucosa) / the thickness of the buccal mucosa in the natural state, the change rates of the buccal mucosa thickness in area A, area B, and area C were 18%, 12%, and 11%, respectively.

[0043] The initial tissue surface was increased outward by the natural buccal mucosa thickness × the buccal mucosa thickness change rate to obtain the adjusted tissue surface, with the thickness of area A being 19.43 mm, the thickness of area B being 16.8 mm, and the thickness of area C being 16.54 mm;

[0044] 3D printing was performed based on the molar fitting surface and the adjusted tissue surface to obtain restoration 3.

[0045] Embodiment 2

[0046] The difference from the first embodiment is that the protrusion 2 in the second embodiment is in the shape of a square, and the connecting member 4 on the fitting surface is a square groove for accommodating the protrusion 2, such as Figure 3 shown.

[0047] The restoration 3 in Example 2 is prepared by the same preparation method as that in Example 1.

[0048] Embodiment 3

[0049] The difference from the first embodiment is that the retainer in the third embodiment includes a maxillary molar adhesive 1 and a slot fixed on the maxillary molar adhesive 1, the connecting piece 4 on the bonding surface is a hook that can be engaged in the slot, and the number of the hooks and the slot is 2.

[0050] The restoration 3 in Example 3 is prepared by the same preparation method as that in Example 1.

[0051] Embodiment 4

[0052] The difference from the first embodiment is that the retainer in the fourth embodiment includes a maxillary molar adhesive 1 and a bolt 7 fixed to the maxillary molar adhesive 1, the connecting member 4 on the bonding surface is a nut embedded in the restoration 3, the nut is threadedly connected to the bolt 7, and the restoration 3 is made of a polymer material 6 wrapped outside a porous frame 5, such as Figure 4 shown.

[0053] Embodiment 5

[0054] The difference from the first embodiment is that the retainer in the fifth embodiment includes a maxillary molar adhesive 1 and an armature fixed on the maxillary molar adhesive 1, the connecting piece 4 on the fitting surface is a magnet wrapped in the restoration 3, and the fitting surface and the retainer are connected by magnetic attraction.

[0055] Application Example 1

[0056] In this application example, the cheek depression repair device of Example 1 is bonded to the teeth of the test subject by light curing. The specific method is as follows:

[0057] First, the tooth surface was etched with 37% phosphoric acid for 30 seconds, rinsed and dried, and the adhesive was applied and light-cured for 10 seconds. The resin cement was applied to the retainer and gently placed on the tooth surface. The overflowed cement was removed with a small brush, and light-cured for 10 seconds. Then, the restoration and the retainer were connected by a buckle. After the subjects wore the cheek depression repair device for 1 month, they gave satisfactory evaluations from the six dimensions of aesthetic effect, retention function, stability function, chewing function, language function, and comfort. The wearing effect of the subjects using the cheek depression repair device in the utility model was highly consistent with the effect of simulating the target morphology.

[0058] Application Example 2

[0059] The difference from the first application example is that in the second application example, the cheek depression repair device of the first application example is chemically bonded to the teeth of the test subject, and the specific method is as follows:

[0060] First, the tooth surface was etched with 37% phosphoric acid for 30 seconds, rinsed and dried, a thin layer of triethylene glycol dimethacrylate was brushed on the tooth surface and the retainer respectively, and then a thin layer of silanized quartz was coated on the retainer, and then the retainer was immediately bonded to the tooth surface for self-curing.

Claims

1. A cheek depression repair device, characterized in that: It includes a retainer and a prosthesis, wherein the retainer is fixed to the buccal surface of the maxillary molar, the prosthesis is detachably connected to the retainer, the prosthesis is filled between the maxillary molar and the buccal mucosa to repair cheek depression, the prosthesis includes a fitting surface and a tissue surface, the prosthesis is provided with a connecting piece connected to the retainer, the fitting surface is raised to form a tissue surface, and the tissue surface is in contact with the buccal mucosa.

2. The cheek depression repair device according to claim 1, characterized in that: The number of the retainer and the connecting pieces connected to the retainer is 1-3.

3. The cheek depression repair device according to claim 1, characterized in that: The restoration and the retainer are detachably connected by snapping, hooking, threading or magnetism.

4. The cheek depression repair device according to claim 1, characterized in that: The restoration is detachably connected to the retainer by snapping, the retainer comprises a maxillary molar adhesive and a protrusion fixed on the maxillary molar adhesive, the connecting piece is arranged on the maxillary molar fitting surface, and the connecting piece is a groove for accommodating the protrusion.

5. The cheek depression repair device according to claim 4, characterized in that: The protrusion is spherical, inverted cone or square, and the groove is engaged with the protrusion.

6. The cheek depression repair device according to claim 1, characterized in that: The restoration is detachably connected to the retainer via a hook, the retainer comprises a maxillary molar adhesive and a slot fixed on the maxillary molar adhesive, the connector is arranged on the maxillary molar fitting surface, and the connector is a hook that can be engaged in the slot.

7. The cheek depression repair device according to claim 1, characterized in that: The restoration is detachably connected to the retainer through threads. The retainer includes a maxillary molar adhesive and a bolt fixed on the maxillary molar adhesive. The connecting piece is a nut embedded in the restoration, and the nut is threadedly connected to the bolt.

8. The cheek depression repair device according to claim 7, characterized in that: The repair body comprises a porous frame and a polymer material wrapped outside the porous frame, and the porous frame is connected to a nut.

9. The cheek depression repair device according to claim 1, characterized in that: The restoration is detachably connected to the retainer through magnetism, the retainer comprises a maxillary molar adhesive, the maxillary molar adhesive is made of magnetic material or is provided with a magnetic coating, the connecting piece is a magnetic coating provided on the fitting surface of the restoration, or the connecting piece is a magnetic block provided in the restoration.

10. The cheek depression repair device according to claim 1, characterized in that: The restoration is detachably connected to the retainer through magnetism, the retainer comprises a maxillary molar adhesive, the maxillary molar adhesive is made of magnetic material or the maxillary molar adhesive is provided with a magnetic coating, the restoration is made of magnetic material, and the restoration is constituted of a connector connected to the retainer.

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