A light-cured molding jaw-facial prosthesis

Abstract

The utility model belongs to the dental prosthetic technology field, concretely relates to a kind of light-cured forming's maxillofacial prosthesis, including lower jaw prosthesis, lower jaw prosthesis top surface is set up alveolus, alveolus surface is connected with alveolar bone by screw thread, alveolar bone top surface is connected with limit post, limit post surface is symmetrically bonded rubber block, rubber block surface is engaged and connected in tooth bottom groove, lower jaw prosthesis is connected with the surface of connecting block using rotating lever rotation on alveolus one side, the surface of connecting block other side is connected with upper jaw prosthesis, upper jaw prosthesis bottom surface is set up alveolus, rotating lever one end surface is connected with screw rod, and screw rod surface is connected with butterfly nut by screw thread.The utility model, through the cooperation between the tooth that can be engaged disassembly and limit post, can disassemble tooth on upper and lower jaw prosthesis according to patient's tooth loss situation, to more intuitively explain tooth repair treatment situation to patient, to better explain the significance and effect of light-cured forming repair.

Description

Technical Field

[0001] This utility model belongs to the field of dental restoration technology, specifically relating to a light-cured maxillofacial prosthesis. Background Technology

[0002] In the field of dentistry and maxillofacial restoration, light-cured molding technology is revolutionizing the field. Traditional maxillofacial restoration methods often struggle to accurately match the complex and unique maxillofacial structures of patients, resulting in poor fit and limited functional recovery. The advent of light-cured molding technology, however, has brought a turning point to the fabrication of maxillofacial prostheses.

[0003] Leveraging advanced digital technology, it can precisely construct personalized 3D models based on patients' CT and MRI imaging data, achieving "reverse design." Building upon this, it utilizes photopolymerization principles to solidify photosensitive resin layer by layer under ultraviolet light, creating prostheses that highly conform to the patient's maxillofacial defects. For example, the laser 3D-printed maxillofacial bone defect repair body approved for marketing by Zhongke Kangtai achieves a pre- and post-operative fitting accuracy of ±0.2mm.

[0004] Dental prostheses fabricated using this technology offer significant advantages. They closely match the patient's maxillofacial structure, effectively restoring speech, chewing, and biting functions while reducing the feeling of a foreign body. During the procedure, doctors can omit the traditional pre-bending step of titanium plates, simplifying the surgical process, shortening the operation time, and increasing the success rate. From an aesthetic perspective, they can be designed based on the normal bone structure of the contralateral side, resulting in a more natural appearance of the restored maxillofacial structure and a more comfortable experience for the patient. This technology has immense application value in the field of oral and maxillofacial restoration.

[0005] Existing prosthesis structures are fixed, making it difficult to visually demonstrate the structure between the upper and lower jawbones and teeth when explaining to patients. This makes it difficult for patients to understand how the prosthesis works in conjunction with their own jawbone and teeth after implantation, thus affecting the effectiveness and quality of preoperative communication. Utility Model Content

[0006] The purpose of this invention is to provide a light-cured maxillofacial prosthesis, which aims to solve the problem that existing prosthesis structures are fixed and cannot be visually demonstrated to patients when explaining to them. This makes it difficult for patients to understand how the prosthesis works in conjunction with their own jawbone and teeth after implantation, thus affecting the effectiveness and quality of preoperative communication.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a light-cured maxillofacial prosthesis, including a mandibular prosthesis, characterized in that: an alveolar socket is formed on the top surface of the mandibular prosthesis, the alveolar socket is threadedly connected to the alveolar bone, a limiting post is connected to the top surface of the alveolar bone, rubber clips are symmetrically bonded to the surface of the limiting post, the rubber clips are engaged with the groove at the bottom of the tooth, the side of the mandibular prosthesis away from the alveolar socket is rotatably connected to the surface of a connecting block by a rotating rod, the other side of the connecting block is connected to a maxillary prosthesis, an alveolar socket is formed on the bottom surface of the maxillary prosthesis, a screw is connected to one end of the rotating rod, a wing nut is threadedly connected to the surface of the screw, and the wing nut movably abuts against the surface of the mandibular prosthesis.

[0008] As a preferred embodiment of the photocurable maxillofacial prosthesis of this invention, the alveolar bone surface is provided with a threaded structure, the shape and size of which are adapted to the alveolar socket.

[0009] As a preferred embodiment of the light-cured maxillofacial prosthesis of this utility model, a cylindrical groove is provided at the bottom of the tooth body, the shape and size of which are adapted to the limiting post and the rubber block.

[0010] As a preferred embodiment of the photocurable maxillofacial prosthesis of this utility model, a circular through groove is provided laterally at the intersection of the mandibular prosthesis and the connecting block, and its shape and size are adapted to the rotating rod body.

[0011] As a preferred embodiment of the photocurable maxillofacial prosthesis of this invention, the screw surface on the side away from the mandibular prosthesis is connected to a limiting disc.

[0012] As a preferred embodiment of the photocurable maxillofacial prosthesis of this invention, the mandibular prosthesis, the rotating rod, and the connecting block form a rotary connection structure.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] By engaging and disassembling the tooth structure and the limiting post, the teeth on the upper and lower jaw prostheses can be disassembled according to the patient's tooth loss situation, thus providing a more intuitive explanation of the treatment of tooth restoration to the patient, and better explaining the significance and role of light-cured molding restoration.

[0015] Meanwhile, by adjusting the position of the wing nut threaded onto the screw, the angle between the upper and lower jaw prostheses, which are rotatably connected to the rotating rod, can be adjusted, thereby more accurately demonstrating the occlusal effect and force state between the upper and lower jaw prostheses. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 This is a top view of the structure of this utility model;

[0019] Figure 3 This is a side view sectional structural diagram of the present invention;

[0020] Figure 4 This is a schematic diagram of the exploded structure of the mandibular prosthesis and alveolar bone portion of this utility model;

[0021] Figure 5 This is a top sectional view of the mandibular prosthesis of this utility model.

[0022] Figure 6 This utility model Figure 4 Enlarged structural diagram of section A.

[0023] In the diagram: 1. Mandibular prosthesis; 2. Alveolar socket; 3. Alveolar bone; 4. Limiting post; 5. Rubber retainer; 6. Tooth body; 7. Rotating rod; 8. Connecting block; 9. Maxillary prosthesis; 10. Screw; 11. Wing nut. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1-6 The present invention provides the following technical solution: a light-cured maxillofacial prosthesis, comprising a mandibular prosthesis 1, an alveolar socket 2 formed on the top surface of the mandibular prosthesis 1, an alveolar bone 3 threadedly connected to the surface of the alveolar socket 2, a limiting post 4 connected to the top surface of the alveolar bone 3, rubber clips 5 symmetrically bonded to the surface of the limiting post 4, the surface of the rubber clips 5 engaging with the bottom groove of the tooth body 6, the side of the mandibular prosthesis 1 away from the alveolar socket 2 being rotatably connected to the surface of the connecting block 8 by means of a rotating rod 7, the other side of the connecting block 8 being connected to a maxillary prosthesis 9, an alveolar socket 2 formed on the bottom surface of the maxillary prosthesis 9, a screw 10 connected to one end of the rotating rod 7, a wing nut 11 threadedly connected to the surface of the screw 10, the surface of the wing nut 11 being movably abutting against the surface of the mandibular prosthesis 1.

[0026] Preferably, the surface of the alveolar bone 3 is provided with a threaded structure, the shape and size of which are adapted to the alveolar socket 2.

[0027] In actual use, hold the limiting post 4 and rotate the alveolar bone 3 connected at the bottom upward on the threaded alveolar socket 2, thereby disassembling the alveolar bone 3 threaded on the alveolar socket 2.

[0028] Preferably, a cylindrical groove is provided at the bottom of the tooth body 6, the shape and size of which are adapted to the limiting post 4 and the rubber block 5.

[0029] In practical use, the cylindrical groove at the bottom of the tooth body 6 allows the limiting post 4 and the rubber clip 5 to engage and insert onto it, thereby fixing the position of the tooth body 6 at the top of the alveolar bone 3. At the same time, during the demonstration, the tooth body 6 that needs to be disassembled can be quickly separated and disassembled.

[0030] Preferably, a circular through groove is opened laterally at the intersection of the mandibular prosthesis 1 and the connecting block 8, and its shape and size are adapted to the body of the rotating rod 7.

[0031] In practical use, the circular through grooves opened on the surfaces of the mandibular prosthesis 1 and the connecting block 8 allow the rotating rod 7 of the rotating connection to be adjusted by rotating while fixing the connection between the two.

[0032] Preferably, the surface of the screw 10 away from the mandibular prosthesis 1 is connected to the limiting disc.

[0033] In practical use, the wing nut 11 threaded onto the screw 10 is limited by the limiting plate set on one side of the screw 10, so as to prevent it from detaching from the screw 10 during the screw rotation.

[0034] Preferably, the mandibular prosthesis 1, the rotating rod 7, and the connecting block 8 form a rotating connection structure.

[0035] In practical use, by connecting the rotating rod 7 at the intersection of the mandibular prosthesis 1 and the connecting block 8, the angle of the connecting block 8 can be adjusted by rotating the mandibular prosthesis 1 after holding it, thereby adjusting the angle between the mandibular prosthesis 1 and the maxillary prosthesis 9, and demonstrating the occlusal situation of the tooth 6 connected on the surface of the two.

[0036] Working principle: Before dental restoration treatment, the tooth 6, which is fixed to the limiting post 4 and the rubber clasp 5, can be disassembled and replaced according to the patient's tooth loss situation. This allows for a more intuitive demonstration of the patient's condition and treatment plan during preoperative treatment communication. Additionally, when there is excessive tooth damage, the limiting post 4 can be held to rotate the alveolar bone 3 connected to the bottom upwards on the alveolar socket 2, thereby disassembling the threaded connection of the alveolar bone 3 within the alveolar socket 2 to demonstrate the tooth structure to the patient. The threaded connection between the alveolar bone 3 and the alveolar socket 2 is directly formed by light curing, with a pitch of 0.5mm and a triangular tooth shape, ensuring connection strength and ease of disassembly. The gap between the bottom groove of the tooth 6 and the limiting post 4 is controlled within 0.1mm. Quick disassembly is achieved through the elastic deformation of the flexible resin rubber clasp 5. (Detailed explanation follows.)

[0037] Furthermore, during the demonstration, when it is necessary to demonstrate the occlusal operation between the mandibular prosthesis 1 and the maxillary prosthesis 9, the wing nut 11 threaded onto the screw 10 can be rotated outward to disengage from the side of the mandibular prosthesis 1 that is abutting. This allows the mandibular prosthesis 1 and the connecting block 8, which are clamped together, to rotate on the connecting rotating rod 7, thereby adjusting the rotation of the mandibular prosthesis 1 and the maxillary prosthesis 9 and demonstrating the occlusal situation between the teeth 6 connected to them. After the demonstration is completed, the mandibular prosthesis 1 and the maxillary prosthesis 9 can be rotated back to their original positions so that the teeth 6 that are engaged on their surfaces abut together. Then, the wing nut 11 can be rotated in the opposite direction again to adjust its position through the threaded screw 10. Finally, the wing nut 11 abuts against one side of the mandibular prosthesis 1 and cooperates with the upper limit plate of the rotating rod 7 to clamp and fix the intersection of the mandibular prosthesis 1 and the connecting block 8. The above can improve the communication efficiency between doctors and patients when communicating about the treatment plan before the light-cured molding restoration.

[0038] Furthermore, in practical use: the mandibular prosthesis 1 and the maxillary prosthesis 9 are made of medical-grade epoxy acrylate photosensitive resin, cured by SLA, with a tensile strength of 65 MPa and an elongation at break of 8%, meeting the biocompatibility requirements of ISO10993-5. The rubber retainer 5 is made of flexible polyurethane acrylate resin (such as Smooth-OnFlexResin), with an elongation at break of 250% and a Shore hardness of A65, ensuring reliable engagement and multiple disassembly of the tooth 6.

[0039] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A light-cured maxillofacial prosthesis, comprising a mandibular prosthesis (1), characterized in that: The mandibular prosthesis (1) has an alveolar socket (2) on its top surface. The alveolar socket (2) is threaded to the alveolar bone (3). The alveolar bone (3) is connected to a limiting post (4) on its top surface. Rubber clips (5) are symmetrically bonded to the surface of the limiting post (4). The surface of the rubber clips (5) is engaged with the bottom groove of the tooth body (6). The mandibular prosthesis (1) is rotatably connected to the surface of the connecting block (8) on the side away from the alveolar socket (2) by a rotating rod (7). The other side of the connecting block (8) is connected to the maxillary prosthesis (9). The maxillary prosthesis (9) has an alveolar socket (2) on its bottom surface. One end of the rotating rod (7) is connected to a screw (10). The surface of the screw (10) is threaded to a wing nut (11). The surface of the wing nut (11) is movably abutting against the surface of the mandibular prosthesis (1).

2. The maxillofacial prosthesis formed by photopolymerization according to claim 1, characterized in that: The alveolar bone (3) has a threaded structure on its surface, the shape and size of which are adapted to the alveolar socket (2).

3. The maxillofacial prosthesis formed by photocuring according to claim 1, characterized in that: The bottom of the tooth (6) has a cylindrical groove, the shape and size of which are adapted to the limiting post (4) and the rubber block (5).

4. The maxillofacial prosthesis formed by photocuring according to claim 1, characterized in that: A circular through groove is opened laterally at the intersection of the mandibular prosthesis (1) and the connecting block (8), and its shape and size are adapted to the body of the rotating rod (7).

5. A photocurable maxillofacial prosthesis according to claim 4, characterized in that: The screw (10) has a limiting disc connected to the side of its surface away from the mandibular prosthesis (1).

6. A photocurable maxillofacial prosthesis according to claim 4, characterized in that: The mandibular prosthesis (1), the rotating rod (7), and the connecting block (8) form a rotating connection structure.

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