Mold taking guide plate, using method of mold taking guide plate and manufacturing process of mold taking guide plate

Abstract

The invention discloses a use method of a mold taking guide plate, which comprises the following steps: implanting an implant into a target position of an upper restoration, and fixedly connecting the implant with a mold taking rod; a mold taking guide plate is attached to the surface of the upper restoration, and condensable matter is injected between the mold taking guide plate and the mold taking rod; after the condensable matter is solidified, the mold taking rod and the mold taking guide plate are taken out together; resetting the mold taking guide plate on the prefabricated tooth model; fixing the obtained implant substitute body on the prefabricated tooth model with the obtained target implant information to obtain the actual position of the implant; according to the actual position of the implant, the in-vitro prosthesis is manufactured, and a target prosthesis is obtained. The use method of the mold taking guide plate is the same as that of an implantation guide plate, and workers can conveniently master the mold taking guide plate. The invention further discloses a preparation method of the mold taking guide plate, extra impression data does not need to be used in the manufacturing process of the mold taking guide plate, the manufacturing process of the mold taking guide plate is consistent with the manufacturing process of a conventional implantation guide plate, and equipment requirements and technical difficulty do not need to be improved.

Description

Technical Field

[0001] The present application relates to the field of dental implant technology, and in particular to a mold-taking guide, a method for using the mold-taking guide, and a manufacturing process thereof. Background Art

[0002] In the prior art, the implant in the immediate implant restoration is connected to the upper restoration (artificial denture) through a fine internal connection structure, and plays a stabilizing and anti-rotation function. In order to ensure that the implant can be smoothly positioned with the upper restoration, doctors usually use the following technical means: First, the implant is implanted more accurately with the assistance of a guide plate or navigation to minimize the three-dimensional position deviation of the implant; second, it is necessary to complete the intraoperative mold taking after the implant is implanted, and use the real implant position recorded by the model to complete the rapid processing of the upper restoration.

[0003] However, in the prior art, the mold guides are mostly made by doctors according to the patient's oral condition, resulting in the surgical guides often not fitting well with the patient's oral cavity and failing to accurately implant the implant into the upper restoration. In addition, the mold guides usually need to be used with an oral scanning instrument during surgery, but oral scanning instruments are expensive and many dental hospitals or clinics do not have them in their implant surgery rooms for a long time, which significantly increases the manufacturing cost.

[0004] Therefore, how to design a mold-taking guide plate that can be used during surgery with high precision and low production cost is a technical problem that technical personnel in this field urgently need to solve. Summary of the invention

[0005] The embodiments of the present application provide a mold guide, a method for using the mold guide, and a manufacturing process thereof, to ensure that a mold guide with high precision and low production cost is obtained, so that the operator can implant the implant in the target position.

[0006] To achieve the above objectives, this application provides the following technical solutions:

[0007] A method for using a mold guide plate comprises the following steps:

[0008] S11. The implant is implanted into the target position of the upper restoration under the guidance of the implant guide;

[0009] S12. First install the impression rod on the implant, and then extend the tail end of the impression rod from the reserved hole of the impression guide;

[0010] S13. Inject condensable material between the mold guide plate and the mold rod;

[0011] S14. After the solidifiable material solidifies, the mold rod and the mold guide are removed together to obtain an implant substitute;

[0012] S15. Reset the impression guide on the prefabricated tooth model to obtain the target position information of the implant;

[0013] S16. Fixing the implant substitute obtained in step S14 on the prefabricated tooth model on which the target implant information has been obtained to obtain the actual position of the implant;

[0014] S17. Complete the in vitro restoration fabrication according to the actual position of the implant to obtain the target restoration.

[0015] Furthermore, in step S13, there is a gap between the mold taking guide plate and the mold taking rod, and a condensable material is injected into the gap to rigidly connect the mold taking guide plate and the mold taking rod.

[0016] Furthermore, the condensable material in step S13 is a self-curing resin and / or a light-curing resin.

[0017] The present application also provides a method for manufacturing a mold guide plate, including the following technical solutions:

[0018] A method for manufacturing a mold guide plate comprises the following steps:

[0019] S21. Routinely obtain the patient's CT data and oral scan data, and complete the routine implant guide design plan on the implant guide design software;

[0020] S22. Generate an STL file of the implant guide according to the conventional implant guide design scheme obtained in step S21;

[0021] S23. In the target implantation guide STL file obtained in step S22, the implantation guide structure is modified according to the preset scheme to obtain the mold guide STL file;

[0022] S24. The implantation guide STL file obtained in step S22 and the mold guide STL file obtained in step S3 are transferred to a 3D printer, and a target implantation guide and a target mold guide are manufactured by the 3D printer;

[0023] S25. Sterilize and package the target implantation guide and the target impression guide obtained in step S24.

[0024] Furthermore, the preset modification scheme in step S23 includes:

[0025] Cut off the redundant dentition structures on both sides of the length direction of the implant guide, and only keep the adjacent auxiliary positions of the adjacent teeth;

[0026] Increase the diameter of the guide hole of the implant guide.

[0027] Furthermore, in step S23, the diameter of the guide hole of the implantation guide plate is enlarged to a range of 0.5-1.5 mm.

[0028] The present application also provides a mold guide plate, which is made by the preparation method of any one of claims 4-6.

[0029] One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages: in the present application, the staff first uses the implantation guide to assist the implant to be accurately implanted into the designed position, and then connects the impression rod matching the implant in the mouth; unpacks the sterile impression guide, and puts it in place in the mouth with the help of the adjacent teeth, while ensuring that the impression rod can smoothly pass through the opening; adds self-curing resin or light-curing resin to the gap between the impression rod and the opening, and rigidly connects and fixes the two; after loosening the impression rod screw, the impression rod and the impression guide are taken out together, and the implant substitute is connected to the end of the impression rod; resets the impression guide on the pre-made tooth model (without implant information), and then loosens the impression rod, retains and fixes the implant substitute in the model. At this time, the actual position of the implant is transferred to the model, which is convenient for the staff to complete the temporary restoration in vitro. The method of using the impression guide is the same as the method of using the implant guide, which is easier for the staff to master. There is no need to equip the operating room with an oral scanner, which reduces the cost of hardware equipment and facilitates large-scale clinical oral implant restoration operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments of the present invention or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 A flow chart of a method for using a mold guide provided in an embodiment of the present application;

[0032] Figure 2 A flow chart of a method for preparing a mold guide provided in an embodiment of the present application.

[0033] Figure 3 This is a schematic diagram of the structure of connecting multiple mold guide plates in this application;

[0034] Figure 4 It is a schematic diagram of the structure of the connecting member in this application.

[0035] Icons: 10 - mold guide body; 20 - mounting shell; 21 - push rod; 22 - slider; 23 - elastic member. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] In the description of the embodiments of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limitations on the present invention. The terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to the specific circumstances.

[0038] A method for using a mold guide plate comprises the following steps:

[0039] S11. The implant is implanted into the target position of the upper restoration under the guidance of the implant guide;

[0040] S12. First install the impression rod on the implant, and then extend the tail end of the impression post from the reserved hole of the guide plate;

[0041] S13. Inject condensable material between the mold guide plate and the mold rod;

[0042] S14. After the solidifiable material solidifies, the mold rod and the mold guide are removed together to obtain an implant substitute;

[0043] S15. Reset the impression guide on the prefabricated tooth model to obtain the target position information of the implant;

[0044] S16. Fixing the implant substitute obtained in step S14 on the prefabricated tooth model on which the target implant information has been obtained to obtain the actual position of the implant;

[0045] S17. Complete the in vitro restoration fabrication according to the actual position of the implant to obtain the target restoration.

[0046] The mold-taking guide in this application is mainly used in the mold-taking scenario of the mold-taking rod and the implant guide during oral implant restoration. During the operation, the implant guide is first used to assist the implant to be accurately implanted into the designed position, and then the mold-taking rod matching the implant is connected in the mouth; the sterile mold-taking guide is unpacked and placed in the mouth with the help of the adjacent teeth, while ensuring that the mold-taking rod can smoothly pass through the opening; self-curing resin or light-curing resin is added to the gap between the mold-taking rod and the opening to rigidly connect and fix the two; after loosening the screw of the mold-taking rod, the mold-taking rod and the mold-taking guide are taken out together, and the implant substitute is connected to the end of the mold-taking rod; the mold-taking guide is reset on the pre-made tooth model (without implant information), and the mold-taking rod is loosened at this time, and the implant substitute is retained and fixed in the model. At this time, the actual position of the implant is transferred to the model, which is convenient for the staff to complete the temporary restoration in vitro. In the above process, the method of using the mold-taking guide is the same as that of the implant guide, which is more convenient for the staff to master. There is no need to equip the operating room with an oral scanner, which reduces the cost of hardware equipment and facilitates large-scale clinical oral implant restoration operations.

[0047] In order to prevent the restoration model from being damaged by the stress of the environment around the oral implant restoration during the process of taking the mold, there is a gap between the mold taking guide plate and the mold taking rod in step S13, and a condensable material is injected into the gap to rigidly connect the mold taking guide plate and the mold taking rod. This arrangement also ensures that the mold taking guide plate can smoothly take the oral implant restoration model out of the oral implant restoration.

[0048] To avoid secondary contamination of the oral implant restoration site by the condensable material, the condensable material in step S13 is a self-curing resin and / or a light-curing resin. This arrangement also facilitates the staff to select safe and economical condensable materials to reduce the cost of oral implant restoration.

[0049] A method for manufacturing a mold guide plate comprises the following steps:

[0050] S21. Routinely obtain the patient's CT data and oral scan data, and complete the routine implant guide design plan on the implant guide design software;

[0051] S22. Generate an STL file of the implant guide according to the conventional implant guide design scheme obtained in step S21;

[0052] S23. In the target implantation guide STL file obtained in step S22, the implantation guide structure is modified according to the preset scheme to obtain the mold guide STL file;

[0053] S24. The implantation guide STL file obtained in step S22 and the mold guide STL file obtained in step S3 are transferred to a 3D printer, and a target implantation guide and a target mold guide are manufactured by the 3D printer;

[0054] S25. Sterilize and package the target implantation guide and the target impression guide obtained in step S24.

[0055] The present application also provides a method for manufacturing the mold guide in the above scheme, firstly obtaining the implant guide structure by conventional means, then modifying the implant guide structure to obtain the mold guide structure data of the target in the present application, and uploading the obtained mold guide data to a 3D printer for printing. No additional mold data is required in the manufacturing process of the mold guide in the present application, and its manufacturing process is consistent with the conventional manufacturing process of the implant guide, without increasing the equipment requirements and technical difficulty.

[0056] The preset modification scheme in step S23 includes: cutting off the redundant dentition structures on both sides of the length direction of the implant guide, and only retaining the adjacent auxiliary positions of the adjacent teeth; and enlarging the guide hole diameter of the implant guide. The purpose of this setting is to avoid the need to use the oral scanner again to obtain the structural data of the impression guide, reduce the hardware equipment cost, and facilitate large-scale clinical oral implant restoration operations.

[0057] The structural data of the mold guide in this application is obtained by cutting the implant guide along its length plan. Its manufacturing process is consistent with the manufacturing process of conventional implant guides, and there is no need to increase equipment requirements and technical difficulty. In addition, the material of the mold guide in this application can be consistent with the material of the implant guide, and there is no need to use additional impression materials. Based on the preparation process of the implant guide material itself undergoing high-pressure sterilization and aseptic packaging, the mold guide in this application also avoids secondary contamination of the surgical area to ensure a safe oral implant restoration working environment.

[0058] In order to ensure that the impression rod is stably connected to the obtained target impression guide, the diameter of the guide hole of the implant guide in step S23 is enlarged by 0.5-1.5 mm. Preferably, the diameter of the guide hole of the implant guide in step 23 is enlarged by 1 mm. The purpose of such setting is to avoid the impression guide from being offset when the impression rod is connected to the impression guide due to the structural data of the implant guide, so as to ensure that the oral restoration model formed when the impression rod and the impression guide are taken is consistent with the target model structure.

[0059] The impression guide in the present application is prepared by steps S21-S25. The prepared impression guide can be applicable to a single implant restoration site or to multiple implant restoration sites.

[0060] In order to ensure the convenience and stability of the use of the molding guide body 10 prepared by the preparation method of steps S21 to S25 in the present application, it is feasible that a plurality of molding guide bodies 10 are provided with connectors, and the working end faces of the plurality of connectors are fixedly connected to the corresponding ends of the adjacent molding guide bodies 10, so as to drive the plurality of molding guide bodies 10 to approach or move away from the connectors. The purpose of such a setting is to adjust the gap between adjacent molding guide bodies 10 through the connectors to avoid deformation of the molding guide body 10 when the condensable material solidifies, which may cause discomfort to the patient. In addition, the working end face of the connector is fixedly connected to the molding guide bodies 10 adjacent to its left and right, so as to avoid the risk of deformation of the implant substitute caused by the adjacent molding guide bodies 10 pressing against each other.

[0061] Preferably, the connecting member includes a mounting shell 20, two push rods 21, two sliders 22 and two elastic members 23; the mounting shell 20 is disposed between the two mold guide plate bodies 10, and two sliders 22 with equal spacing are disposed at the bottom of the mounting shell 20 to slide toward each other, and one end of the two sliders 22 close to the outside of the mounting shell 20 extends out of the outside of the mounting shell 20 and is fixedly connected to the adjacent mold guide plate body 10. One end of the two push rods 21 vertically passes through the interior of the mounting shell 20 and abuts against the side of the corresponding slider 22, so as to drive the two sliders 22 to slide toward each other inside the mounting shell 20; one end of the two elastic members 23 is fixedly connected to one side of the two sliders 22 close to the outside of the mounting shell 20.

[0062] The two push rods 21, two sliders 22, and two elastic members 23 in the present application are arranged together on the mounting shell 20, effectively utilizing the space of the adjacent mold guide plate body 10. Among them, one end of the two push rods 21 extends into the mounting shell 20 and abuts against the corresponding side surfaces of the two sliders 22. When the staff rotates or pushes one or both of the push rods 21 to move the push rods 21 upward or downward in the mounting shell 20, the end of the push rod 21 will continue to abut against the side surfaces of the two sliders 22, driving the two sliders 22 to slide toward each other, thereby making the mold guide plate body 10 fixedly connected to one end of the two sliders 22 close to the outside of the mounting shell 20 move closer or farther away, so as to adjust the spacing between the mold guide plate bodies 10 located on both sides of the mounting shell 20.

[0063] Preferably, the end of the push rod 21 in the present application that extends into the mounting shell 20 is in a conical structure, and its narrow end face abuts against the side of the slider 22, and the other end of the push rod 21 is in a threaded structure and is screwed to the housing of the mounting shell 20. This arrangement is not only convenient for installing and disassembling the push rod 21, but also convenient for the staff to adjust the gap between adjacent mold guide plate bodies 10.

[0064] Preferably, the elastic member 23 in the present application is a spring, one end of the elastic member 23 is fixedly connected to a side of the slider 22 close to the mold guide body 10, and the other end is fixedly connected to the inner wall of the mounting shell 20. The purpose of such a setting is to utilize the deformation ability of the elastic member 23 to prevent the bottom of the two sliders 22 from sliding relative to the inner wall of the mounting shell 20, thereby avoiding the relative displacement of the mold guide body 10 on both sides of the mounting shell 20, resulting in deformation of the implant substitute.

[0065] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other. Each embodiment focuses on the differences from other embodiments.

[0066] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit the present application. Although the present application has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some or all of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the present application.

Claims

1. A method for using a mold guide plate, characterized in that: The following steps are involved: S11. The implant is implanted into the target position of the upper restoration under the guidance of the implant guide; S12. First install the impression rod on the implant, and then extend the tail end of the impression post from the reserved hole of the guide plate; S13. Inject condensable material between the mold guide plate and the mold rod; S14. After the solidifiable material solidifies, the mold rod and the mold guide are removed together to obtain an implant substitute; S15. Reset the impression guide on the prefabricated tooth model to obtain the target position information of the implant; S16. Fixing the implant substitute obtained in step S14 on the prefabricated tooth model on which the target implant information has been obtained to obtain the actual position of the implant; S17. Complete the in vitro restoration fabrication according to the actual position of the implant to obtain the target restoration.

2. The method for using the mold guide plate according to claim 1, characterized in that: In step S13, there is a gap between the mold taking guide plate and the mold taking rod, and a condensable material is injected into the gap to rigidly connect the mold taking guide plate and the mold taking rod.

3. The method for using the mold guide plate according to claim 2, characterized in that: The condensable material in step S13 is a self-curing resin and / or a light-curing resin.

4. A method for manufacturing a mold guide plate, characterized in that: The following steps are involved: S21. Routinely obtain the patient's CT data and oral scan data, and complete the routine implant guide design plan on the implant guide design software; S22. Generate an STL file of the implant guide according to the conventional implant guide design scheme obtained in step S21; S23. In the target implantation guide STL file obtained in step S22, the implantation guide structure is modified according to the preset scheme to obtain the mold guide STL file; S24. The implantation guide STL file obtained in step S22 and the mold guide STL file obtained in step S3 are transferred to a 3D printer, and a target implantation guide and a target mold guide are manufactured by the 3D printer; S25. Sterilize and package the target implantation guide and the target impression guide obtained in step S24.

5. The method for manufacturing the mold guide plate according to claim 4, characterized in that: The preset modification scheme in step S23 includes: Cut off the redundant dentition structures on both sides of the length direction of the implant guide, and only keep the adjacent auxiliary positions of the adjacent teeth; Increase the diameter of the guide hole of the implant guide.

6. The method for manufacturing the mold guide plate according to claim 5, characterized in that: In step S23, the diameter of the guide hole of the implantation guide plate is enlarged in a range of 0.5-1.5 mm.

7. A mold guide plate, characterized in that: The method is prepared according to any one of claims 4 to 6.

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