Oral planting mold taking tray capable of being detachably positioned and using method thereof

Abstract

The invention belongs to the technical field of oral cavity medical instruments, and particularly relates to a detachable positioning oral cavity planting mold taking tray and a using method thereof.The detachable positioning oral cavity planting mold taking tray comprises a tray support, an outer baffle, an inner net and an inner baffle, and the outer baffle, the inner net and the inner baffle are sequentially arranged on the tray support from outside to inside; the inner net is horizontally arranged and detachably placed on the upper surface of the tray support, the edge of the inner net and the edge of the tray support coincide with each other in the vertical plane, a vertically-penetrating through hole is formed in the surface of the tray support, and a plurality of vertically-penetrating first overflow holes are formed in the surface of the inner net. A plurality of first overflow holes are formed in the inner net, any four adjacent first overflow holes and the inner net jointly form windowing shells, the windowing shells are arrayed in the length direction of the inner net, and a plurality of horizontally-penetrating second overflow holes are formed in the surface of the outer baffle. The working efficiency is low, and the application range is not wide.

Description

Technical Field

[0001] This invention belongs to the field of oral medical device technology, specifically relating to a detachable and positionable dental implant impression tray and its usage method. Background Technology

[0002] In dental implantology departments, the current impression-taking devices are primarily disposable prefabricated trays, similar to those used in other departments. However, after implant surgery, precise transfer of the intraoral implant's spatial position to the plaster model is required. This necessitates the installation of a transfer device on the implant. Currently, most techniques employ a window-type transfer, where a hole is drilled in the tray to accommodate the transfer rod, allowing it to pass smoothly through the hole during impression taking. However, during drilling, it's difficult to position the transfer rod on the tray, often requiring multiple adjustments and intraoral trials. This process is extremely labor-intensive, and drilling generates a large amount of debris and dust, which can cause discomfort for the dentist with prolonged inhalation. Furthermore, large openings increase the probability of impression loss or lead to impression deformation, resulting in poor final restoration outcomes. Excessively long tray edges cause patient discomfort, and the long handles are inconvenient to use. Therefore, it is necessary to provide a new type of implant tray that can effectively complete the impression-taking process without drilling. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a detachable and positionable dental implant impression tray and its method of use, in order to solve the problem that the current trays need to be perforated on their surface during the impression process, resulting in low work efficiency and limited applicability.

[0004] To achieve the above objectives, the present invention provides the following technical solution: A detachable and positionable dental implant impression tray includes a tray support and, from the outside in, an outer baffle, an inner mesh, and another inner baffle, arranged sequentially on the tray support. The outer surface of the tray support has a handle. The inner mesh is horizontally positioned and detachably placed on the upper surface of the tray support, with the edges of the inner mesh and the tray support coinciding in the vertical plane. The surface of the tray support has a vertically penetrating through-hole. The surface of the inner mesh has multiple vertically penetrating first overflow holes, and any four adjacent first overflow holes together with the inner mesh form a window housing. The window housing has multiple components arranged in an array along the length of the inner mesh. The outer baffle has multiple horizontally penetrating second overflow holes on its surface, and these second overflow holes are arranged in an array along the length of the outer baffle. The inner baffle is detachably connected to the inner side of the tray support and is positioned opposite to the outer baffle. The inner baffle also has multiple third overflow holes arranged in an array along its length. Both adjacent surfaces of the outer baffle and the inner baffle are provided with baffles that abut against the upper surface of the inner mesh. Each baffle is horizontally positioned and extends along the length of the inner mesh. Each baffle and the tray support abut against the inner mesh and fix it to the tray support. The outer baffle, the inner mesh, and the adjacent surfaces of the inner baffle together form the molding cavity.

[0005] Furthermore, the tray support includes two mirror-image first supports and second supports, both of which are detachably connected to the handle; the outer baffle includes two mirror-image first outer baffles and second outer baffles, with the first outer baffle corresponding to and fixedly connected to the first support, and the second outer baffle corresponding to and fixedly connected to the second support; the inner mesh includes two mirror-image first main meshes and second main meshes, which are detachably connected to each other, with the first main mesh corresponding to the first support and the second main mesh corresponding to the second support; the inner baffle includes two mirror-image first inner baffles and second inner baffles, with the first inner baffle corresponding to the first support and the second inner baffle corresponding to the second support.

[0006] Furthermore, each of the first and second supports is connected to a first reinforcing rib. Two first reinforcing ribs are located within the through holes of the first and second supports, respectively, and each through hole in the first and second supports is divided in two by the first reinforcing rib. Each of the first and second main grids consists of two grid plates, and each grid plate corresponds one-to-one with each through hole of the first and second supports. Each of the first and second outer supports consists of an outer support support, second reinforcing ribs mounted on the outer support support, and an outer mesh plate detachably connected to the outer support support. The positions of the second reinforcing ribs correspond one-to-one with the first reinforcing ribs, and each second reinforcing rib divides the outer support support into two areas for placing the outer mesh plate. Furthermore, the outer block also includes an auxiliary block disposed between the first outer block and the second outer block. The auxiliary block is fixedly connected to the handle and detachably connected to the first outer block and the second outer block. The surface of the auxiliary block has a horizontally arranged opening, and a block mesh plate is detachably connected to the opening. The surface of the block mesh plate has a plurality of second overflow holes.

[0007] Furthermore, the surfaces of the first outer baffle, the second outer baffle, and the auxiliary baffle are all provided with connecting strips, and magnets are fixed on the surfaces of the connecting strips. The surfaces of each outer baffle mesh plate and the baffle mesh plate are provided with magnetic materials that cooperate with the magnets. When each outer baffle mesh plate is magnetically attracted to the first outer baffle and the second outer baffle, and the auxiliary mesh plate is magnetically attracted to the auxiliary baffle, each outer baffle mesh plate and the auxiliary mesh plate are all located on the side close to the inner mesh.

[0008] Furthermore, each of the outer baffle plate, the baffle plate, and the grid plate has a thin film covering one side surface, and each film is located on the side away from the mold cavity.

[0009] A method for using a detachable and positionable dental implant impression tray, comprising the following steps: Step S1: Preoperative preparation and component selection. Clean and disinfect each component before the operation. Based on the patient's oral examination results, determine the implant position, dental arch width, gingival thickness, and whether there is dental arch asymmetry. Select the corresponding components according to the patient's implant position and assemble them. Step S2: Tray and support assembly and adjustment. Select the corresponding first or second support and the corresponding first or second inner guard according to the position of the patient's dental implant. Connect the handle to the selected first support. Then install the outer guard mesh plate and the mesh plate in sequence. Finally, connect the selected first inner guard to the first support and fix the mesh plate on the upper surface of the first support to form a mold cavity corresponding to the position of the implant. Step S3: Implant positioning operation. Hold the handle and place the assembled part of the tray support into the patient's mouth, aligning the mold cavity with the tooth where the implant is located. Then, slowly push the handle along the implant axis until the transfer rod pushes open the window shell at the corresponding position of the grid plate. Confirm that the through hole and the size of the transfer rod are compatible. If the window is not fully opened, slightly adjust the tray angle and push the handle again to ensure that the window shell is completely detached. Step S4: Impression material filling and extrusion molding. Remove the tray support and evenly apply the uniformly mixed silicone rubber impression material into the mold cavity. Place the tray support into the patient's mouth again and pass the transfer rod through the through hole on the mesh plate. The medical staff applies uniform pressure to the tray support to ensure that the impression material completely covers the implant healing abutment, surrounding teeth and gums, forming a continuous and uniform extrusion force on the impression material in the mold cavity, and wait for it to cure. Step S5: Impression removal and component disassembly and cleaning. The medical staff holds the handle and slowly removes the tray support from the patient's mouth. First, remove the first inner barrier, and then separate the impression material from the tray support to complete the impression of the implant.

[0010] The beneficial effects of this invention are as follows: 1. This invention, through the interaction of the U-shaped inner mesh structure with the outer and inner baffles and their corresponding baffles, effectively restricts multiple degrees of freedom of the inner mesh, achieving precise fixation of the inner mesh on the tray support. The diamond-shaped window shell designed on the surface of the inner mesh is connected to the inner mesh through four connection points, resulting in low connection strength. When the transfer rod abuts against the inner mesh, it can automatically open the window shell to form an opening, eliminating the need for manual grinding. This not only significantly shortens the doctor's operation process and time but also effectively avoids the risk of damage to the impression material that may occur during manual grinding, ensuring the accuracy of the transfer rod positioning and subsequent secondary engagement between the inner mesh and the transfer rod. In addition, the various types of overflow holes set on the outer baffle, inner baffle, and inner mesh surface can promptly discharge excess impression material during the impression process. Furthermore, the overflow holes with special shapes such as squares and triangles can cause the overflowing impression material to form an inverted concave structure, generating a strong clamping force, effectively preventing demolding and significantly improving the stability of the impression material after curing. 2. Adopting a modular and detachable overall design, the core components such as the tray support, outer barrier, inner mesh, and inner guard are divided into two mirror-image sets. The corresponding components can be selectively assembled according to the specific location of the patient's implant area, eliminating the need to place the entire assembly into the patient's mouth. This significantly reduces the space occupied by the tray in the oral cavity, making the operation more flexible and convenient. In terms of cost control, only disposable consumables such as the inner mesh after drilling need to be replaced. The main components, such as the tray support, outer barrier, and inner guard, can be reused after cleaning and disinfection. Simultaneously, the partitioned impression chamber design can precisely match the implant area, reducing the consumption of silicone rubber impression material and significantly lowering the overall operating cost. Furthermore, the cooperative design of the auxiliary blocks and block mesh plates can accommodate the impression needs of some patients with irregular implant areas, such as malformed central incisors, further broadening the product's applicability. The magnetic connection structure enables quick assembly and disassembly of the outer barrier mesh plate and block mesh plate, improving assembly efficiency. The thin film design on the surface of each mesh plate optimizes the overflow direction and rate of impression material, reducing discomfort caused by the overflowing material contacting the patient's oral cavity and improving the patient's treatment experience.

[0011] Other advantages, objectives, and features of the invention will be set forth in the following description and will be apparent to those skilled in the art in some respects, or may be learned by practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0012] To make the objectives, technical solutions, and beneficial effects of this invention clearer, the following figures are provided for illustration: Figure 1 This is a schematic diagram of the overall structure of the tray support of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of the tray support of the present invention. Figure 2 ; Figure 3 This is an exploded view of the pallet support portion of the present invention; Figure 4 This is a schematic diagram of the structure of the first support and the outer baffle plate of the present invention; Figure 5 This is a schematic diagram of the grid plate structure of the present invention; Figure 6 This is a schematic diagram of the overall structure of the pallet support in Embodiment 2 of the present invention. Figure 1 ; Figure 7 This is a schematic diagram of the overall structure of the pallet support in Embodiment 2 of the present invention. Figure 2 ; Figure 8 This is a schematic diagram of the film and outer support structure in Embodiment 2 of the present invention.

[0013] The following labels are shown in the attached diagram: 1. Tray support, 101. First support, 102. Second support, 2. Outer baffle, 3. Inner mesh, 4. Inner baffle, 401. First inner baffle, 402. Second inner baffle, 5. Handle, 6. First overflow hole, 7. Window housing, 8. Second overflow hole, 9. Third overflow hole, 10. Stop bar, 11. Molding chamber, 12. First reinforcing rib, 13. Mesh plate, 14. Outer baffle support, 15. Second reinforcing rib, 16. Outer baffle mesh plate, 17. Stop block mesh plate, 18. Connecting strip, 19. Film, 20. Pressing block, 21. Auxiliary stop block. Detailed Implementation

[0014] Example 1: like Figures 1-5 As shown, A detachable and positionable dental implant impression tray includes a tray support 1 and an outer baffle 2, an inner mesh 3, and an inner baffle 4 arranged sequentially from the outside to the inside of the tray support 1. The outer surface of the tray support 1 has a handle 5. The inner mesh 3 is U-shaped and horizontally positioned and detachably placed on the upper surface of the tray support 1, with the edges of the inner mesh 3 and the tray support 1 coinciding in the vertical plane. The surface of the tray support 1 has a vertically penetrating through-hole. The surface of the inner mesh 3 has multiple vertically penetrating first overflow holes 6, and any four adjacent first overflow holes 6 together with the inner mesh 3 form a window housing 7. The window housing 7 is rhomboid in the horizontal plane and has multiple components arranged in a regular array along the length of the inner mesh 3. The surface of the outer baffle 2 has multiple horizontally penetrating second overflow holes 8. The second overflow holes 8 are arrayed along the length direction of the outer baffle 2, and each second overflow hole 8 is rectangular in the vertical plane. The inner baffle 4 is detachably connected to the inner side of the tray support 1 and is arranged opposite to the outer baffle 2. The surface of the inner baffle 4 is provided with a plurality of third overflow holes 9 arrayed along its length direction. Each third overflow hole 9 is formed in the vertical plane in the form of a circle or a triangle. The two adjacent surfaces of the outer baffle 2 and the inner baffle 4 are provided with baffles 10 that abut against the upper surface of the inner mesh 3. Each baffle 10 is horizontally arranged and extends along the length direction of the inner mesh 3. The lower surface of each baffle 10 abuts against the upper surface of the inner mesh 3, and the lower surface of each baffle 10 and the upper surface of the tray support 1 abut against the inner mesh 3 and fix it on the tray support 1. The adjacent surfaces of the outer baffle 2, the inner mesh 3 and the inner baffle 4 together form the mold cavity 11.

[0015] As shown in the diagram, when taking an impression of the patient's implant area, first remove the inner barrier 4, then place the inner mesh 3 on the upper surface of the tray support 1, and then fix the inner barrier 4 onto the tray support 1, ensuring that the retaining strips 10 on the outer barrier 2 and the inner barrier 4 abut against the upper surface of the inner mesh 3. Since the inner mesh 3 is U-shaped, and the edges of the inner mesh 3 and the tray support 1 coincide in the vertical plane, the cooperation between the retaining strips 10 and the tray support 1 can restrict multiple degrees of freedom of the inner mesh 3 and fix the inner mesh 3 to the upper surface of the tray support 1. Then, place the assembled tray support 1 into the patient's mouth, align the impression chamber 11 with the area of ​​the tooth to be implanted, and then move the tray support 1 towards the implant by holding the handle 5 until one end of the transfer rod on the implant abuts against the surface of the inner mesh 3 and pushes open the corresponding window housing 7, thus completing the "window opening" process. Since the window housing 7 is rhomboid, the window housing 7 and the inner mesh 3 are connected by four connection points. The connection has low strength, and it can detach when the window housing 7 is subjected to vertical pressure. After the window housing 7 is opened, the surface of the inner mesh 3 forms an opening through which the transfer rod can pass, allowing one end of the transfer rod to extend out and achieve precise positioning of the transfer rod. There is no need to grind the opening again, allowing the transfer rod to automatically push out the corresponding window housing 7 on the surface of the inner mesh 3, effectively reducing the operation process and significantly reducing the doctor's operation time. At the same time, it avoids the risk of damage to the impression material caused by manual grinding, and also ensures the accuracy when the inner mesh 3 is used in conjunction with the transfer rod in the future. After positioning the transfer rod, the tray support 1 is taken out of the patient's mouth, and the mixed silicone rubber impression material is evenly applied to the mold cavity 11. Then the tray support 1 is put back into the patient's mouth, ensuring that one end of the transfer rod passes through the opening on the surface of the inner mesh 3. Then, it is aligned with the implant area and gently pressed to ensure that the impression material completely covers the healing abutment and surrounding teeth and gums, completing the impression work for the patient's implant area. During the molding process, excess molding material flows out from the first overflow hole 6, the second overflow hole 8, and the third overflow hole 9. The square and triangular overflow holes allow the molding material to form a concave shape after overflowing, generating a strong clamping force to prevent demolding and improve the stability of the outer support body after the molding material has cured. After the molding material has cured, the inner baffle 4 can be removed, and the cured molding material can be separated from the inner net 3 and the outer baffle 2. The inner net 3 is a disposable material that can be replaced. Then, it is combined with the inner baffle 4 and the outer baffle 2 to form a new molding chamber 11. After disinfection, the next molding of the planting area is performed. Compared with traditional disposable molding trays, this invention can effectively reduce costs.

[0016] In this embodiment, the tray support 1 includes two mirror-image first support 101 and second support 102, both of which are detachably connected to the handle 5 via bolts (of course, they can also be detachably connected via snap-fit ​​or other known technologies, which will not be elaborated here); the outer baffle 2 includes two mirror-image first outer baffles and second outer baffles, with the first outer baffle corresponding to and fixedly connected to the first support 101, and the second outer baffle corresponding to and fixedly connected to the second support 102; the inner mesh 3 includes two mirror-image first main meshes and second main meshes, which are detachable from each other. The first main grid is connected to the first support 101, and the second main grid is connected to the second support 102. The inner block 4 includes two mirror-set first inner block 401 and second inner block 4024, and the positions of the first inner block 401 and the first support 101, and the second inner block 4024 and the second support 102 are respectively connected. The outer surface of the first inner block 401 and the first support 101 are detachably connected (the detachable connection can be achieved by existing known technologies such as bolts or buckles, which is common knowledge to those skilled in the art and will not be elaborated here). The surface of the second support 102 and the second inner block 4024 are detachably connected.

[0017] As shown in the figure, the first support 101 and the first outer barrier are fixed together to form an integral structure. Similarly, the second support 102 and the second outer barrier are fixed together to form an integral structure, and both are detachably connected to the handle 5. When it is necessary to take an impression of the patient's implantation area, the corresponding first support 101 or second support 102 is selected according to the location of the implantation area. Assuming that the patient's implantation area corresponds to the first support 101, it is only necessary to fix the handle 5 to the first support 101. Then, the first main grid is placed on the upper surface of the first support 101, and then the first inner barrier 401 is fixedly connected to the first support 101. Since the first main grid has an arc-shaped structure in the horizontal plane, the first inner barrier 401, the first outer barrier, and the barrier strip can effectively fix the first main grid to the surface of the first support 101, thereby forming the molding chamber 11. Compared with the above-mentioned method of placing the complete inner barrier 4, outer barrier 2, and tray support 1 into the patient's mouth, the present invention... The first main grid, first support 101, first inner baffle 401, and first outer baffle are placed into the patient's mouth, reducing the volume by half. This not only reduces the footprint of the tray support 1 when working in the patient's mouth, making operation more flexible, but also reduces the utilization rate of idle equipment. Since the patient's implants are generally concentrated in one area, the corresponding first support 101 or second support 102 and subsequent corresponding equipment can be selected according to the location of the implant. Other unused equipment does not need to be connected to the handle 5. The inner grid 3 can also be divided into two parts, which can also effectively reduce its consumption. In addition, it will also reduce the amount of silicone rubber impression material placed in the impression chamber 11. This will not affect the impression work on the patient's implant area, effectively improving the flexibility of the invention. At the same time, only the first main grid or the second main grid after the hole is opened needs to be replaced. The rest can be disinfected and reused, greatly reducing the cost of using the impression tray.

[0018] In this embodiment, each of the first brackets 101 and the second brackets 102 is fixedly connected with a horizontally arranged first reinforcing rib 12. The two first reinforcing ribs 12 are respectively located within the through holes of the first bracket 101 and the second bracket 102, and the through holes in the first bracket 101 and the second bracket 102 are each divided in two by the first reinforcing rib 12. The first main grid and the second main grid are each composed of two grid plates 13, and each grid plate 13 corresponds one-to-one with each through hole of the first bracket 101 and the second bracket 102. The connection points between each grid plate 13 correspond to the first reinforcing rib 12. The first outer baffle and the second outer baffle are both composed of an outer baffle bracket 14. The outer support bracket 14 consists of a second reinforcing rib 15 and an outer mesh plate 16 detachably connected to the outer support bracket 14. Each second reinforcing rib 15 corresponds to the position of the first reinforcing rib 12, and each second reinforcing rib 15 divides the outer support bracket 14 into two areas for placing the outer mesh plate 16. Each outer mesh plate 16, together with the corresponding mesh plate 13, the first inner baffle 401, and the second inner baffle 4024, forms a mold cavity 11. Each mesh plate 13 is also arc-shaped in the horizontal plane. Therefore, each mesh plate 13 will be fixed on the surface of the first support bracket 101 and the second support bracket 102 under the action of the outer baffle 2, the inner baffle 4, and the baffle strip 10.

[0019] As shown in the figure, the through holes on the surfaces of the first bracket 101 and the second bracket 102 are divided in two by the two first reinforcing ribs 12, and each through hole corresponds to a mesh plate 13. Similarly, the first outer baffle and the second outer baffle are also divided into two areas for placing the outer baffle 2 mesh plates by the second reinforcing ribs 15, and the position and number of each outer baffle 2 mesh plate and the mesh plate 13 correspond one-to-one. Each mesh plate 13, together with the corresponding outer baffle mesh plate 16, the first inner baffle 401 and the second inner baffle 4024, forms a small mold cavity 11. Compared with the previous method of using the entire outer baffle 2 and inner baffle 102, this method is more efficient. The mold material chamber 11, composed of the inner mesh 4 and the inner mesh 3, is designed to reduce its volume by nearly a quarter. When it is necessary to make an impression on the patient's implantation area, first select the corresponding mesh plate 13, outer baffle plate 16, and first inner baffle 401 / second inner baffle 4024 according to the location of the patient's implantation area. Then install the corresponding components and form the mold material chamber 11 corresponding to the location of the patient's implantation area. Hold the mold material chamber 11 into the patient's mouth with the handle 5 and repeat the above steps of pushing out the window shell 7 on the inner mesh 3 with the transfer rod and taking out the mold material chamber 11 and filling it with impression material.

[0020] In summary, each grid plate 13 can be simply assigned to a mold chamber 11, and the corresponding mold chamber 11 can be selected according to the location of the patient's implantation area. The remaining mold chambers 11 no longer need to be assembled, which not only improves the flexibility of the invention in use, but also further reduces the wear and tear of each component and lowers the cost of use.

[0021] In this embodiment, the outer block 2 further includes an auxiliary block 203 disposed between the first outer block and the second outer block. The auxiliary block 203 is fixedly connected to the handle 5. The auxiliary block 203 is detachably connected to the first outer block and the second outer block by bolts. The surface of the auxiliary block 203 has a horizontally arranged opening, and a block mesh plate 17 is detachably connected to the opening. The surface of the block mesh plate 17 has a plurality of second overflow holes 8.

[0022] As shown in the figure, when taking impressions of the patient's implant area, the implant area of ​​a small number of patients is irregularly positioned and malformed, such as the central incisors of the upper and lower jaws, which are everted. In this case, an artificial hole can be made at the stop plate 17 so that the hole position corresponds to the implant area position of the malformed central incisor (of course, this requires the tray bracket 1 to be placed in advance and aligned with the implant area position before making the opening). Then, two mesh plates 13, two outer stop plates 2, and inner stop plates 4 are installed near the stop plate 17, which together form a mold cavity 11, and then subsequent impression processing is carried out.

[0023] Therefore, by cooperating with the auxiliary stop 203 and the stop mesh plate 17, it is possible to accommodate implantation of malformed central incisors in a small number of patients. Since these patients are few in number, medical staff need to manually grind the through holes on the stop mesh plate 17 corresponding to the transfer rods. After the holes are drilled, the stop mesh plate 17 becomes a disposable material and needs to be replaced with a new one. The stop mesh plate 17 without holes can be disinfected and reused, which further improves the flexibility and applicability of the present invention.

[0024] In this embodiment, the surfaces of the first outer baffle, the second outer baffle, and the auxiliary block 203 are all integrally formed with connecting strips 18, and magnets are embedded in the surface of the connecting strips 18. The surfaces of each outer baffle mesh plate 16 and the block mesh plate 17 are provided with magnetic materials (such as iron) that cooperate with the magnets. When each outer baffle mesh plate 16 is magnetically attracted to the first outer baffle and the second outer baffle, and the auxiliary mesh plate is magnetically attracted to the auxiliary block 203, each outer baffle mesh plate 16 and the auxiliary mesh plate are all located on the side close to the inner mesh 3.

[0025] As shown in the figure, by attracting the magnets to the magnetic material, the outer baffle 16 and the baffle 17 can be quickly fixed to the surfaces of the first outer baffle, the second outer baffle, and the auxiliary baffle 203, forming a mold cavity 11 with each grid plate 13 and the inner baffle 4. The four outer baffles 16, the four grid plates 13, and the first inner baffle 401 and the second inner baffle 4024 can be flexibly combined to meet the needs of patients for taking impressions at different implant positions.

[0026] In this embodiment, each of the outer baffle plate 16, the stop block plate 17, and the grid plate 13 has a film 19 covering one side surface, and each film 19 is located on the side away from the mold cavity 11. The film 19 is a transparent plastic film. The edge of the film 19 on the surface of the outer baffle plate 16 is fixed to the outer baffle 2 by the abutment action of the connecting strip 18 and the outer baffle plate 16. Similarly, the film 19 on the surface of the stop block plate 17 is fixed to the outer baffle plate 16 by the abutment action of the connecting strip 18 and the stop block plate 17. The film 19 on the surface of each grid plate 13 is also fixed to its surface by the abutment action of the grid plate 13 with the first support 101 and the second support 102.

[0027] As shown in the figure, the film 19 is already bonded together with each outer baffle plate 16, baffle plate 17, and mesh plate 13 at the factory. When it is necessary to take an impression of the patient's dental implant, the corresponding outer baffle plate 16, mesh plate 13, and first inner baffle 401 / second inner baffle 4024 are selected according to the position of the patient's dental implant. After the selected components are assembled, the mold cavity 11 is formed. At this time, the outer baffle plate 16, mesh plate 13, and baffle plate 17 are all bonded and covered with the film 19 on the side of the outer baffle plate 16, mesh plate 13, and baffle plate 17 away from the mold cavity 11. When the medical staff holds the handle 5 and positions the mold cavity 11 with the transfer rod of the patient's implant area, one end of the transfer rod will push open the window shell 7 on the surface of the corresponding mesh plate 13. Then the mold cavity 11 is taken out, and the film 19 is placed on the surface of the opened window shell 7. An opening is made on the surface of the impression chamber 11, and impression material is injected. The chamber 11 is then placed in the patient's mouth. One end of the transfer rod passes through the mesh plate 13 and the film 19. The impression material is squeezed by the patient's teeth and flows out through the first overflow hole 6, the second overflow hole 8, and the third overflow hole 9. Since the outer mesh plate 16 and the side of the mesh plate 13 away from the impression chamber 11 are covered with the film 19, the squeezed impression material only passes through the second overflow hole 8 and the first overflow hole 6 before being blocked by the film 19. This causes the impression material to overflow through the third overflow hole 9 and the outside of the impression chamber 11, limiting the overflow direction and rate of some impression material. This allows the impression material to effectively imprint the shape of the implant area teeth while reducing discomfort caused by some impression material overflowing from the impression chamber 11 and contacting the patient's mouth. After the impression is taken, the used films 19 can be removed and replaced with new films 19. The operation is simple and convenient.

[0028] In this embodiment, the inner surfaces of both the first stent 101 and the second stent 102 are integrally formed with two horizontally arranged pressing blocks 20, which are symmetrically arranged about the horizontal axis of the stent. The pressing blocks 20 facilitate medical staff to apply uniform pressure to the first stent 101 and the second stent 102, effectively improving the uniformity of the impression material covering the patient's implant.

[0029] In this embodiment, the first support 101, the second support 102, the outer baffle 2 support, the auxiliary baffle 203, the handle 5, the first reinforcing rib 12, the second reinforcing rib 15, and the pressing block 20 are all made of medical-grade titanium alloy material, and each of the mesh plates 13, the outer baffle mesh plate 16, and the baffle mesh plate 17 is made of medical-grade plastic material with a smooth surface.

[0030] A method for using a detachable and positionable dental implant impression tray, comprising the following steps: Step S1: Preoperative preparation and component selection. Clean and disinfect each component before the operation. Based on the patient's oral examination results, determine the implant position, dental arch width, gingival thickness, and whether there is dental arch asymmetry. Select the corresponding components according to the patient's implant position and assemble them. Step S2: Assemble and adjust the tray support 1. Select the corresponding first support 101 or second support 102 and the corresponding first inner block 401 or second inner block 4024 according to the position of the patient's dental implant. Assume that only the first support 101 and its corresponding first inner block 401 are selected here. Connect the handle 5 to the selected first support 101. Then install the outer baffle 16 and the mesh plate 13 in sequence. Finally, connect the selected first inner block 401 to the first support 101 and fix the mesh plate 13 to the upper surface of the first support 101 to form the mold cavity 11 corresponding to the position of the implant. Step S3: Implant positioning operation. Holding the handle 5, place the assembled partial tray support 1 into the patient's oral cavity, aligning the mold cavity 11 with the tooth where the implant is located. Then, slowly push the handle 5 along the implant axis until the transfer rod pushes open the window housing 7 at the corresponding position of the grid plate 13. Confirm that the through hole and the size of the transfer rod are compatible. If the window is not fully opened, slightly adjust the tray angle and push the handle 5 again to ensure that the window housing 7 is completely dislodged. Step S4: Impression material filling and extrusion molding. Take out the tray support 1 and check whether the position of the film 19 corresponding to the window shell 7 has also been opened. If not, make an opening manually. Then, evenly apply the mixed silicone rubber impression material to the mold cavity 11. Put the tray support 1 into the patient's mouth again, so that the transfer rod passes through the through hole on the grid plate 13 and the film 19. The medical staff applies uniform pressure to the pressing block 20 on the tray support 1 to ensure that the impression material completely covers the implant healing abutment, surrounding teeth and gums, and forms a continuous and uniform extrusion force on the impression material in the mold cavity 11, and waits for it to cure. Step S5: Impression removal and component disassembly and cleaning. Medical staff hold handle 5 and slowly remove tray support 1 from the patient's mouth. After the impression material has solidified, first remove the first inner barrier 401, and then separate the solidified impression material from tray support 1 to complete the impression of the implant. Clean and disinfect the used first support 101, first inner barrier 401 and outer mesh plate 16 for the next use. The mesh plate 13 is discarded as a disposable material.

[0031] Similarly, when it is necessary to select components such as the second bracket 102 or the second outer retainer according to the patient's dental implant position, the operation steps are similar to those above, and will not be elaborated on here.

[0032] Example 2: The difference between this embodiment and Embodiment 1 is that: the areas where each of the outer support brackets 14, auxiliary blocks 21, first support 101 / second support 102 connects to the adjacent grid plate 13 all share a notch, such as... Figure 6 , Figure 7 The shape shown is irregular; and a film 19 (as shown in Figure 8) is also provided at the gap. The film 19 is simultaneously abutted and fixed on the tray support 1 by two outer baffle plates 16, a baffle plate 17 and two grid plates 13. After the film 19 at the gap is abutted and fixed, it covers the entire gap. The purpose of this gap is to facilitate medical staff in taking impressions of the planting area, reducing the need for steps such as using a positioning transfer rod and grinding the outer mesh panel 16. Figure 7 , Figure 8As shown, when the patient's implant area is located at the position of the central or lateral incisors of the upper or lower jaw, due to the special position of the teeth (which are inclined and not vertically arranged), when using the tray support 1 and related components in Embodiment 1 to position the transfer rod in the implant area, the connection of the outer baffle 14, the auxiliary baffle 21, and the first support 101 / second support 102 will block the positioning of the transfer rod. This causes medical staff to need to constantly correct the position of the tray support 1, and at the same time, they also need to grind the outer baffle mesh 16, which further increases the workload of medical staff. Therefore, this embodiment has a notch in this location. When medical staff take impressions for the dental implant, they no longer need to first place the tray support 1 into the patient's mouth for positioning. They only need to place the film 19 in the corresponding position, then place the two outer baffles 16 with notches on the corresponding outer baffles 14, install the baffles 17, and then place the two mesh plates 13 with notches on the upper surfaces of the first support 101 and the second support 102 respectively. During installation, each outer baffle 16, mesh plate 13, and baffle 17 will abut against the film 19 and fix it to the tray support 1. At this time, the film 19 covers the notch, and each outer baffle 16, mesh plate 13, baffle 17, and inner baffle 4 together form the impression chamber. The impression material is filled into the impression chamber. Then, the tray support 1 with the impression material is placed into the patient's mouth. One end of the transfer rod of the implant area will pass through the corresponding notch and the film 19, and the film 19 will prevent the impression material from passing through the notch, so that the impression material can effectively imprint the shape of the implant area.

[0033] The notch, along with the corresponding film 19, outer support bracket 14, auxiliary block 21, mesh plate 13, and first support 101 / second support 102, can effectively improve the work efficiency of medical staff when taking impressions of the upper / lower central incisors or lateral incisors, and also demonstrates the flexibility of the device in use.

[0034] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of the present invention.

Claims

1. A detachable and positionable dental implant impression tray, comprising a tray support (1) and an outer baffle (2), an inner mesh (3), and an inner baffle (4) arranged sequentially from the outside to the inside on the tray support (1). The outer surface of the tray support (1) is provided with a handle (5). The inner mesh (3) is horizontally arranged and detachably placed on the upper surface of the tray support (1), and the edges of the inner mesh (3) and the tray support (1) coincide with each other in the vertical plane. The surface of the tray support (1) is provided with a vertically penetrating through hole. The surface of the inner mesh (3) is provided with a plurality of vertically penetrating first overflow holes (6), and any four adjacent first overflow holes (6) together with the inner mesh (3) form a window shell (7). The window shell (7) is provided with multiple parts arranged in an array along the length direction of the inner mesh (3). The surface of the baffle (2) is provided with a plurality of horizontally penetrating second overflow holes (8), and each second overflow hole (8) is arranged in an array along the length direction of the outer baffle (2). The inner baffle (4) is detachably connected to the inner side of the tray support (1) and is arranged opposite to the outer baffle (2). The surface of the inner baffle (4) is provided with a plurality of third overflow holes (9) arranged in an array along its length direction. The two adjacent surfaces of the outer baffle (2) and the inner baffle (4) are provided with baffle strips (10) that abut against the upper surface of the inner mesh (3). Each baffle strip (10) is arranged horizontally and extends along the length direction of the inner mesh (3). Each baffle strip (10) and the tray support (1) abut against the inner mesh (3) and fix it on the tray support (1). The adjacent surfaces of the outer baffle (2), the inner mesh (3) and the inner baffle (4) together form the mold cavity.

2. The detachable and positionable impression tray for dental implant according to claim 1, wherein: The tray support (1) includes two mirror-image first support (101) and second support (102), and both the first support (101) and second support (102) are detachably connected to the handle (5); the outer baffle (2) includes two mirror-image first outer baffle and second outer baffle, and the first outer baffle corresponds to and is fixedly connected to the first support (101), and the second outer baffle corresponds to and is fixedly connected to the second support (102); the inner mesh (3) includes two mirror-image first main mesh and second main mesh, and the first main mesh and second main mesh are detachably connected to each other, and the first main mesh corresponds to the first support (101) and the second main mesh corresponds to the second support (102) one by one; the inner baffle (4) includes two mirror-image first inner baffle (401) and second inner baffle (402), and the first inner baffle (401) corresponds to the first support (101) and the second inner baffle (402) corresponds to the second support (102) one by one.

3. The removable positioned dental implant impression tray of claim 2, wherein: Each of the first brackets (101) and the second brackets (102) is connected to a first reinforcing rib (12). The two first reinforcing ribs (12) are located in the through holes of the first brackets (101) and the second brackets (102), respectively. The through holes in the first brackets (101) and the second brackets (102) are divided into two by the first reinforcing ribs (12). The first main grid and the second main grid are each composed of two grid plates (13), and each grid plate (13) corresponds one-to-one with each through hole of the first brackets (101) and the second brackets (102). The first outer baffle and the second outer baffle are each composed of an outer baffle bracket (14), a second reinforcing rib (15) set on the outer baffle bracket (14), and an outer baffle (2) grid plate that is detachably connected to the outer baffle bracket (14). The positions of the second reinforcing ribs (15) correspond one-to-one with the positions of the first reinforcing ribs (12), and each second reinforcing rib (15) divides the outer baffle bracket (14) into two areas for placing the outer baffle (2) grid plate.

4. The removable positioned dental implant impression tray of claim 3, wherein: The outer block (2) also includes an auxiliary block (203) disposed between the first outer block and the second outer block. The auxiliary block (203) is fixedly connected to the handle (5) and detachably connected to the first outer block and the second outer block. The surface of the auxiliary block (203) is provided with a horizontally arranged opening, and a block mesh plate (17) is detachably connected to the opening. The surface of the block mesh plate (17) is provided with a plurality of second overflow holes (8).

5. The removable positioned dental implant impression tray of claim 4, wherein: The surfaces of the first outer baffle, the second outer baffle, and the auxiliary block (203) are all provided with connecting strips (18), and magnets are fixed on the surface of the connecting strips (18). The surfaces of the outer baffle (2) mesh plates and the block mesh plates (17) are all provided with magnetic materials that cooperate with the magnets. When the outer baffle (2) mesh plates are magnetically attracted to the first outer baffle and the second outer baffle, and the auxiliary mesh plate is magnetically attracted to the auxiliary block (203), the outer baffle (2) mesh plates and the auxiliary mesh plates are all located on the side close to the inner mesh (3).

6. A detachable and positionable dental implant impression tray according to claim 5, characterized in that: Each of the outer baffle (2) mesh plate, baffle mesh plate (17) and mesh plate (13) has a thin film (19) covering one side surface, and each thin film (19) is located on the side away from the mold cavity.

7. A method of using a detachable and positionable dental implant impression tray, applied to the detachable and positionable dental implant impression tray described in claims 1-6, characterized in that, The implementation steps include the following: Step S1: Preoperative preparation and component selection. Clean and disinfect each component before the operation. Based on the patient's oral examination results, determine the implant position, dental arch width, gingival thickness, and whether there is dental arch asymmetry. Select the corresponding components according to the patient's implant position and assemble them. Step S2: Assemble and adjust the tray support (1). Select the corresponding first support (101) or second support (102) and the corresponding first inner block (401) or second inner block (402) according to the position of the patient's dental implant. Connect the handle (5) to the selected first support (101). Then install the outer block (2) mesh plate and the mesh plate (13) in sequence. Finally, connect the selected first inner block (401) to the first support (101) and fix the mesh plate (13) on the upper surface of the first support (101) to form a mold cavity corresponding to the position of the implant. Step S3: Implant positioning operation. Hold the handle (5) and place the assembled part of the tray support (1) into the patient's mouth, aligning the mold cavity with the tooth where the implant is located. Then, slowly push the handle (5) along the implant axis until the transfer rod pushes open the window shell (7) at the corresponding position of the grid plate (13). Confirm that the through hole and the size of the transfer rod are compatible. If the window is not fully opened, the tray angle can be slightly adjusted and the handle (5) can be pushed again to ensure that the window shell (7) is completely detached. Step S4: Filling and extruding the impression material. Take out the tray support (1), and evenly apply the mixed silicone rubber impression material to the mold cavity. Put the tray support (1) into the patient's mouth again, and let the transfer rod pass through the through hole on the grid plate (13). The medical staff apply uniform pressure to the tray support (1) to ensure that the impression material completely covers the implant healing abutment, surrounding teeth and gums, and to form a continuous and uniform extrusion force on the impression material in the mold cavity, and wait for it to cure. Step S5: Impression removal and component disassembly and cleaning. The medical staff holds the handle (5) and slowly removes the tray support (1) from the patient's mouth. First, remove the first inner guard (401), and then separate the impression material from the tray support (1) to complete the impression of the implant.

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