A dental implant guide based on 3D printing

Abstract

The present invention relates to the technical field of dental implant guides, and discloses a dental implant guide based on 3D printing, comprising: a guide body and a positioning hole, wherein the guide body is an arc-shaped structure, and the guide body is integrally formed by 3D printing technology and adapted to the shape of the patient's dental arch, and the positioning hole is provided on the surface of the guide body for guiding the implantation. By adopting 3D printing technology to integrally form the guide body, and determining the position of the positioning hole by the patient's oral CT data, the dental implant guide has a high degree of fit with the patient's dental arch, and the positioning hole is accurately positioned. At the same time, the 3D printing technology has low equipment cost and high material utilization rate, which reduces the production cost of the guide body. In addition, digital design and 3D printing technology simplify the guide production process and shorten the production cycle, thereby making the dental implant guide have the advantages of high precision, low cost and simple and convenient production process, and is worthy of wide promotion and application.

Description

Technical Field

[0001] The present invention relates to the technical field of dental implant guide plates, and in particular to a dental implant guide plate based on 3D printing. Background Art

[0002] During dental implant surgery, precise positioning of the implant is one of the key factors for the success of the operation. The dental implant guide can accurately determine the direction and depth of the implant, avoiding errors or complications during the operation and improving the safety of the operation.

[0003] Currently, there are several main methods for making dental implant guides: one is the traditional manual production method, which uses plaster models and manual cutting to form; the second is the CNC machine processing method, which uses CAD / CAM technology to design and then uses CNC machine cutting to form; the third is the light-curing molding method, which uses photosensitive resin to cure under ultraviolet light.

[0004] The above three methods of making dental implant guides have the following defects: the traditional manual production method has low precision and cannot meet the needs of high-precision implant surgery; the CNC machine tool processing method has high equipment costs and is difficult to popularize; the light-curing molding method has high material costs and complex processes, which limits its wide application.

[0005] Therefore, there is an urgent need for a low-cost, high-precision, and simple process method for making dental implant guides. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The present invention provides a dental implant guide based on 3D printing, comprising:

[0008] The guide plate body and the positioning hole are arc-shaped structures, and the guide plate body is integrally formed by 3D printing technology and adapted to the shape of the patient's dental arch. The positioning hole is arranged on the surface of the guide plate body to guide the implantation. The size and position of the positioning hole are precisely designed based on the CT data of the patient's mouth.

[0009] By adopting the above technical solution, the dental implant guide has a high degree of fit with the patient's dental arch and the positioning holes are accurately positioned. At the same time, the 3D printing technology has low equipment cost and high material utilization rate, which reduces the production cost of the guide body. In addition, digital design and 3D printing technology simplify the guide production process and shorten the production cycle.

[0010] Preferably, the guide plate body is made of medical-grade photosensitive resin material.

[0011] By adopting the above technical solution, the guide plate body has good biocompatibility and mechanical strength.

[0012] Preferably, the inner wall of the positioning hole is provided with a titanium-platable coating.

[0013] By adopting the above technical solution, the wear resistance and guiding accuracy of the inner wall of the positioning hole are effectively improved.

[0014] Preferably, a fixing component for fixing the guide plate body to the patient's healthy teeth is provided on the surface of the guide plate body.

[0015] By adopting the above technical solution, the two positioning frames can be fixed conveniently under the action of the fixing assembly on the one hand, and the guide plate body sleeved on the teeth can be effectively fixed on the other hand.

[0016] Preferably, the fixing assembly includes a connecting tube arranged inside the arc-shaped area of the guide plate body, and two symmetrical telescopic columns slidably arranged on the inner wall of the connecting tube. The two telescopic columns are each provided with a positioning frame at one end away from the connecting tube, and the two positioning frames are respectively clamped and arranged on the two end surfaces of the guide plate body.

[0017] By adopting the above technical solution, the fixing assembly can be adapted to guide plate bodies of different specifications by sliding the telescopic column on the inner wall of the connecting pipe.

[0018] Preferably, a rotating frame is fixedly provided at the end of the telescopic column, a rotating shaft is rotatably provided on the inner wall of the rotating frame, a rotating block is fixedly provided on the outer surface of the positioning frame, and a fixing hole is opened on the surface of the rotating block which is fixedly connected to the outer surface of the rotating shaft.

[0019] By adopting the above technical solution, the angle of the positioning frame can be adjusted by rotating the rotating block inside the rotating frame, thereby being able to adapt to guide plate bodies of different specifications and shapes.

[0020] Preferably, two symmetrical clamping plates are slidingly provided on the inner wall of the positioning frame, and a small motor for driving the two clamping plates to move toward the middle at the same time is fixed on the upper surface of the positioning frame. A charging power supply box, a button switch and a small PLC controller are also fixed on the upper surface of the positioning frame, and a charging power supply is provided inside the charging power supply box. Positioning columns are fixed on the opposite surfaces of the two clamping plates, and through holes corresponding to each other and opposite to the positioning columns are opened on the two end surfaces of the guide plate body. A cylindrical cavity is opened on the end of the positioning column, and a buffer column is slidingly provided on the inner wall of the cylindrical cavity. A rubber anti-slip pad is fixed on one end of the buffer column, and a buffer spring is fixed on the other end of the buffer column. The other end of the buffer spring is fixedly connected to the inner wall of the arc cavity, and a contact sensor is fixed on the inner wall of the cylindrical cavity. The contact sensor and the small motor are electrically connected to the small PLC controller through a wire.

[0021] By adopting the above technical solution, the two clamping plates can be driven to move toward the middle at the same time during the process of the small motor driving the bidirectional screw to rotate, thereby driving the two positioning columns to move toward the middle at the same time, and passing through the two through holes on the guide plate body, so that the positioning columns pass through the guide plate body and contact and tighten with the patient's healthy teeth, thereby achieving effective fixation of the guide plate body. Moreover, when the positioning columns contact the teeth, the buffer columns can slide on the inner wall of the cylindrical cavity. When the clamping force between the buffer columns and the tooth surface reaches a certain level, the end of the buffer column can contact the contact sensor. At this time, the contact sensor transmits the signal to the small PLC controller, and the small PLC controller automatically controls the small motor to shut down, thereby achieving the purpose of overload protection for the small motor and effectively ensuring the service life of the small motor.

[0022] Preferably, a rectangular groove is provided on the inner top wall of the positioning frame, a bidirectional screw is rotatably provided on the inner wall of the rectangular groove, the top ends of the two clamps are slidably connected to the inner wall of the rectangular groove, two symmetrical limiting rods are fixed on the inner wall of the rectangular groove, and the surfaces of the two clamps are respectively provided with threaded holes threadedly connected to the outer surface of the bidirectional screw, and sliding holes slidably connected to the outer surfaces of the two limiting rods.

[0023] By adopting the above technical solution, the two clamping plates can be driven to move toward the middle at the same time through the rotation of the bidirectional screw, and the setting of the limit rod effectively ensures the stability of the two clamping plates when moving.

[0024] Preferably, the upper surface of the positioning frame is provided with an opening component for opening the patient's mouth during the process of fixing the guide plate body, the opening component includes a fixed cylinder fixed on the upper surface of the positioning frame, and a sliding column slidably arranged on the inner wall of the fixed cylinder, the top of the sliding column is provided with a support frame for supporting the patient's upper teeth, the top of the sliding column is fixed with a universal ball head, and the lower surface of the support frame is fixed with a rotating seat, and the lower surface of the rotating seat is provided with a spherical rotating cavity rotatably connected to the outer surface of the universal ball head.

[0025] By adopting the above technical solution, the support frame can change its angle according to the situation in the patient's mouth under the action of the universal ball head and the rotating seat, so that the support frame can fit the patient's upper teeth.

[0026] Preferably, the inner bottom wall of the fixed cylinder is rotatably provided with a threaded column extending into the interior of the rectangular groove, and the bottom end of the threaded column and the surface of the bidirectional lead screw are respectively fixed with a third bevel gear and a fourth bevel gear that mesh with each other, an annular groove is opened on the inner ring surface of the bottom of the fixed cylinder, and the output end of the small motor extends to the interior of the annular groove in the fixed cylinder and is fixed with a first bevel gear, and the outer surface of the threaded column is fixed with a second bevel gear that meshes with the first bevel gear;

[0027] By adopting the above technical solution, the rotation of the small motor can drive the first bevel gear to rotate, the rotation of the first bevel gear can drive the second bevel gear and the threaded column to rotate, the rotation of the threaded column can drive the third bevel gear to rotate, and the rotation of the third bevel gear can drive the fourth bevel gear and the bidirectional lead screw to rotate, so that the two splints can be driven to move toward the middle at the same time through the rotation of the small motor.

[0028] Preferably, the bottom end of the sliding column is provided with a cylindrical groove corresponding to the threaded column, and the inner wall of the bottom end of the cylindrical groove is fixed with an internal threaded sleeve, the inner wall of the internal threaded sleeve is threadedly connected to the outer surface of the threaded column, the outer surface of the bottom end of the sliding column is fixed with two symmetrical limit blocks, and the inner wall of the fixed cylinder is provided with a limit sliding groove for the limit block to slide.

[0029] By adopting the above technical solution, the internal threaded sleeve can be driven to move upward during the rotation of the threaded column, thereby driving the sliding column to move upward to push the support frame upward. In addition, during the movement of the sliding column, the stability of the sliding column can be effectively guaranteed under the action of the two limit blocks.

[0030] The beneficial effects of the present invention are:

[0031] The 3D printing-based dental implant guide described in the present invention uses 3D printing technology to integrate the guide body, and determines the position of the positioning hole through the patient's oral CT data, so that the dental implant guide has a high fit with the patient's dental arch and the positioning hole is accurately positioned. At the same time, the 3D printing technology has low equipment cost and high material utilization rate, which reduces the production cost of the guide body. In addition, digital design and 3D printing technology simplify the guide production process and shorten the production cycle, thereby making the dental implant guide have the advantages of high precision, low cost and simple and convenient production process, and is worthy of wide promotion and application.

[0032] The 3D-printed dental implant guide described in the present invention, by providing a fixing component, can drive the positioning posts on the two splints to move toward the middle at the same time through the rotation of a small motor, and then pass through the two through holes on the guide body and press against the surface of the patient's healthy teeth, thereby achieving effective fixation of the guide body and effectively ensuring the stability of the guide body when implanting teeth on the patient.

[0033] The 3D printing-based dental implant guide described in the present invention, by providing an expansion component, can drive the support frame to move upward and effectively support the patient's upper teeth while a small motor drives the bidirectional lead screw to rotate to effectively fix the guide body, thereby achieving the purpose of automatically expanding the patient's mouth and facilitating the doctor's dental implant operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic diagram of the three-dimensional structure of embodiment 1 of the present invention;

[0035] Figure 2 This is a schematic diagram of the three-dimensional structure of the second embodiment of the present invention;

[0036] Figure 3 This is a schematic diagram of the three-dimensional structure of the positioning frame in the second embodiment of the present invention;

[0037] Figure 4 This is a bottom-up structural diagram of the positioning frame in the second embodiment of the present invention;

[0038] Figure 5 This is a schematic side view of the positioning frame structure in the second embodiment of the present invention;

[0039] Figure 6 Schematic diagram of the cross-sectional structure of the positioning frame and the supporting frame in the second embodiment of the present invention;

[0040] Figure 7 This invention Figure 6 A in the middle is an enlarged structural diagram;

[0041] Figure 8 This invention Figure 6 Enlarged structural diagram at point B in the middle.

[0042] Description of reference numerals:

[0043] 100. Guide plate body;

[0044] 200, positioning hole;

[0045] 300, fixing assembly; 301, connecting pipe; 302, telescopic column; 303, positioning frame; 304, rotating frame; 305, rotating shaft; 306, rotating block; 307, clamping plate; 308, small motor; 309, charging power box; 3010, push button switch; 3011, small PLC controller; 3012, positioning column; 3013, buffer column; 3014, rubber anti-slip pad; 3015, buffer spring; 3016, contact sensor; 3017, bidirectional lead screw; 3018, limit rod; 3019, first bevel gear; 3020, second bevel gear; 3021, third bevel gear; 3022, fourth bevel gear;

[0046] 400, expansion assembly; 401, fixing cylinder; 402, sliding column; 403, support frame; 404, universal ball joint; 405, rotating seat; 406, threaded column; 407, internal threaded sleeve; 408, limit block. DETAILED DESCRIPTION

[0047] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed solely to enable those skilled in the art to better understand and implement the subject matter described herein, and that the functions and arrangements of the elements discussed may be varied without departing from the scope of this specification. Various examples may omit, substitute, or add various processes or components as needed. In addition, features described with respect to some examples may also be combined in other examples.

[0048] Example 1

[0049] The following is a further detailed description of the technical solution of the present invention in conjunction with the accompanying drawings and specific embodiments. Figure 1 , this application provides a 3D printed dental implant guide, please refer to Figure 1 , including: a guide plate body 100 and a positioning hole 200. The guide plate body 100 is an arc-shaped structure, and the guide plate body 100 is integrally formed through 3D printing technology and adapted to the shape of the patient's dental arch. The positioning hole 200 is set on the surface of the guide plate body 100 for guiding the implant implantation. The size and position of the positioning hole 200 are precisely designed based on the CT data of the patient's mouth.

[0050] Specifically, the guide plate body 100 is integrally formed by adopting 3D printing technology, and the position of the positioning hole 200 is determined by the patient's oral CT data, so that the dental implant guide has a high degree of fit with the patient's dental arch and the positioning hole 200 is accurately positioned.

[0051] Please refer to Figure 1 The guide plate body 100 is made of medical-grade photosensitive resin material, so that the guide plate body 100 has good biocompatibility and mechanical strength. The inner wall of the positioning hole 200 is provided with a titanium coating for improving the wear resistance and guiding accuracy of the inner wall of the positioning hole 200.

[0052] Specifically, the material of the guide plate body 100 can be replaced with other medical-grade polymer materials, such as polyetheretherketone (PEEK); and the inner wall coating of the positioning hole 200 can be replaced with a ceramic coating.

[0053] The process of making the guide plate body 100 is as follows: first, a three-dimensional model is established using the patient's oral CT data; second, the guide plate body 100 and the positioning hole 200 are designed using CAD software; finally, the guide plate is integrally formed using a 3D printer.

[0054] The manufacturing steps and precautions for the guide plate body 100 are as follows:

[0055] S1: Obtain the patient's oral CT data;

[0056] S2: Design the three-dimensional model of the guide plate using CAD software;

[0057] S3: Import the model into the 3D printer and select medical-grade photosensitive resin material;

[0058] S4: Start the 3D printer to make the guide plate;

[0059] S5: Disinfect the finished guide plate.

[0060] Note: When designing, ensure that the guide plate fits the dental arch.

[0061] In this embodiment, the guide plate body 100 is integrally formed by adopting 3D printing technology, and the position of the positioning hole 200 is determined by the patient's oral CT data, so that the dental implant guide plate has a high degree of fit with the patient's dental arch and the positioning hole 200 is accurately positioned. At the same time, the 3D printing technology equipment has low cost and high material utilization rate, which reduces the production cost of the guide plate body 100. In addition, digital design and 3D printing technology simplify the guide plate production process and shorten the production cycle, thereby making the dental implant guide plate have the advantages of high precision, low cost and simple and convenient production process, and is worthy of wide promotion and application.

[0062] Example 2

[0063] See also Figures 2 to 8 Based on the first embodiment, and different from the first embodiment, please refer to Figure 2 The surface of the guide body 100 is provided with a fixing component 300 for fixing the guide body 100 to the patient's healthy teeth.

[0064] Specifically, under the action of the fixing assembly 300 , on the one hand, the two positioning frames 303 can be fixed, and on the other hand, the guide plate body 100 sleeved on the teeth can be effectively fixed.

[0065] Please refer to Figure 2 and Figure 3 The fixing assembly 300 includes a connecting tube 301 arranged inside the arc-shaped area of the guide plate body 100, and two symmetrical telescopic columns 302 slidably arranged on the inner wall of the connecting tube 301. The two telescopic columns 302 are each provided with a positioning frame 303 at one end away from the connecting tube 301, and the two positioning frames 303 are respectively clamped and arranged on the two end surfaces of the guide plate body 100.

[0066] Specifically, the fixing assembly 300 can adapt to guide plate bodies 100 of different specifications by sliding the telescopic column 302 on the inner wall of the connecting tube 301 .

[0067] Please refer to Figure 3A rotating frame 304 is fixedly provided at the end of the telescopic column 302, and a rotating shaft 305 is rotatably provided on the inner wall of the rotating frame 304. A rotating block 306 is fixedly provided on the outer surface of the positioning frame 303, and a fixing hole is opened on the surface of the rotating block 306 to be fixedly connected to the outer surface of the rotating shaft 305.

[0068] Specifically, the angle of the positioning frame 303 can be adjusted by rotating the rotating block 306 inside the rotating frame 304 , thereby being able to adapt to guide plate bodies 100 of different specifications and shapes.

[0069] Please refer to Figures 5 to 8 The inner wall of the positioning frame 303 is provided with two symmetrical clamping plates 307 for sliding. The upper surface of the positioning frame 303 is fixed with a small motor 308 for driving the two clamping plates 307 to move toward the middle at the same time. The upper surface of the positioning frame 303 is also fixed with a charging power box 309, a button switch 3010 and a small PLC controller 3011. The charging power box 309 is provided with a charging power supply. The opposite surfaces of the two clamping plates 307 are fixed with positioning columns 3012, and the surfaces of both ends of the guide plate body 100 are provided with corresponding and The positioning column 3012 is opposite to the through hole, and a cylindrical cavity is opened at the end of the positioning column 3012, and a buffer column 3013 is slidably provided on the inner wall of the cylindrical cavity, one end of the buffer column 3013 is fixed with a rubber anti-slip pad 3014, and the other end of the buffer column 3013 is fixed with a buffer spring 3015, and the other end of the buffer spring 3015 is fixedly connected to the inner wall of the arc cavity, and a contact sensor 3016 is fixed on the inner wall of the cylindrical cavity, and the contact sensor 3016 and the small motor 308 are electrically connected to the small PLC controller 3011 through wires.

[0070] Specifically, when the small motor 308 drives the bidirectional screw 3017 to rotate, the two clamping plates 307 can be driven to move toward the middle at the same time, thereby driving the two positioning columns 3012 to move toward the middle at the same time, and pass through the two through holes on the guide plate body 100, so that the positioning columns 3012 pass through the guide plate body 100 and contact and tighten with the patient's healthy teeth, thereby achieving effective fixation of the guide plate body 100. Moreover, when the positioning columns 3012 contact the teeth, the buffer columns 3013 can slide on the inner wall of the cylindrical cavity. When the clamping force of the buffer column 3013 and the tooth surface reaches a certain level, the end of the buffer column 3013 can contact the contact sensor 3016. At this time, the contact sensor 3016 transmits a signal to the small PLC controller 3011, and the small PLC controller 3011 automatically controls the small motor 308 to shut down, thereby achieving the purpose of overload protection of the small motor 308, and effectively ensuring the service life of the small motor 308.

[0071] Please refer to Figure 7A rectangular groove is provided on the inner top wall of the positioning frame 303, and a bidirectional screw 3017 is rotatably provided on the inner wall of the rectangular groove. The top ends of the two splints 307 are slidably connected to the inner wall of the rectangular groove, and two symmetrical limiting rods 3018 are fixed on the inner wall of the rectangular groove. The surfaces of the two splints 307 are respectively provided with threaded holes threadedly connected to the outer surface of the bidirectional screw 3017, and sliding holes slidably connected to the outer surfaces of the two limiting rods 3018.

[0072] Specifically, the two clamping plates 307 can be driven to move toward the middle at the same time by the rotation of the bidirectional lead screw 3017, and the setting of the limiting rod 3018 effectively ensures the stability of the two clamping plates 307 when moving.

[0073] Please refer to Figure 5 and Figure 6 The upper surface of the positioning frame 303 is provided with an opening component 400 for opening the patient's mouth during the process of fixing the guide plate body 100. The opening component 400 includes a fixed cylinder 401 fixed on the upper surface of the positioning frame 303, and a sliding column 402 slidably arranged on the inner wall of the fixed cylinder 401. The top of the sliding column 402 is provided with a support frame 403 for supporting the patient's upper teeth. The top of the sliding column 402 is fixed with a universal ball head 404, and the lower surface of the support frame 403 is fixed with a rotating seat 405. The lower surface of the rotating seat 405 is provided with a spherical rotating cavity rotatably connected to the outer surface of the universal ball head 404.

[0074] Specifically, under the action of the universal ball head 404 and the rotating seat 405, the support frame 403 can change its angle according to the situation in the patient's mouth, so that the support frame 403 can fit the patient's upper teeth.

[0075] Please refer to Figure 6 and Figure 7 The inner bottom wall of the fixed cylinder 401 is rotatably provided with a threaded column 406 extending into the interior of the rectangular groove, and the bottom end of the threaded column 406 and the surface of the bidirectional lead screw 3017 are respectively fixed with a third bevel gear 3021 and a fourth bevel gear 3022 that mesh with each other. An annular groove is opened on the inner ring surface of the bottom of the fixed cylinder 401, and the output end of the small motor 308 extends to the interior of the annular groove in the fixed cylinder 401 and is fixed with a first bevel gear 3019. The outer surface of the threaded column 406 is fixed with a second bevel gear 3020 that meshes with the first bevel gear 3019.

[0076] Specifically, the rotation of the small motor 308 can drive the first bevel gear 3019 to rotate, the rotation of the first bevel gear 3019 can drive the second bevel gear 3020 and the threaded column 406 to rotate, the rotation of the threaded column 406 can drive the third bevel gear 3021 to rotate, the rotation of the third bevel gear 3021 can drive the fourth bevel gear 3022 and the bidirectional screw 3017 to rotate, so that the rotation of the small motor 308 can drive the two splints 307 to move toward the middle at the same time.

[0077] Please refer to Figure 6 and Figure 7 The bottom end of the sliding column 402 is provided with a cylindrical groove corresponding to the threaded column 406, and the inner wall of the bottom end of the cylindrical groove is fixed with an internal threaded sleeve 407, the inner wall of the internal threaded sleeve 407 is threadedly connected to the outer surface of the threaded column 406, and the outer surface of the bottom end of the sliding column 402 is fixed with two symmetrical limit blocks 408, and the inner wall of the fixed cylinder 401 is provided with a limit sliding groove for the limit block 408 to slide.

[0078] Specifically, during the rotation of the threaded column 406, the internal threaded sleeve 407 can be driven to move upward, thereby driving the sliding column 402 to move upward and push the support frame 403 upward. Moreover, during the movement of the sliding column 402, the stability of the sliding column 402 during movement can be effectively guaranteed under the action of the two limit blocks 408.

[0079] In this embodiment, by providing a fixing assembly 300, the two positioning frames 303 can be clamped on the two end surfaces of the guide body 100 before the dental implant guide is used. Then, after the dental implant guide is put on the patient's lower teeth, the small motor 308 is started by the button switch 3010. The rotation of the small motor 308 drives the bidirectional screw 3017 to rotate. The rotation of the bidirectional screw 3017 drives the two splints 307 to move toward the middle at the same time, thereby driving the positioning posts 3012 on the two splints 307 to move toward the middle at the same time, and pass through the two through holes on the guide body 100 to press against the surface of the patient's healthy teeth, thereby achieving effective fixation of the guide body 100 and effectively ensuring that the patient's lower teeth are properly fixed. The stability of the guide body 100 during dental implantation is enhanced, and in this embodiment, an expansion assembly 400 is provided. In the process of effectively fixing the guide body 100 by driving the bidirectional lead screw 3017 to rotate through the small motor 308, the rotation of the small motor 308 can drive the first bevel gear 3019 to rotate, and the rotation of the first bevel gear 3019 drives the second bevel gear 3020 and the threaded column 406 to rotate. The rotation of the threaded column 406 drives the sliding column 402 to move upward under the action of the internal threaded sleeve 407, thereby driving the support frame 403 to move upward and effectively support the patient's upper teeth, thereby achieving the purpose of automatically expanding the patient's mouth and facilitating the doctor's dental implant operation.

[0080] Working principle: Before using the dental implant guide, the two positioning frames 303 can be clamped on the two end surfaces of the guide body 100. Then, after the dental implant guide is put on the patient's lower teeth, the small motor 308 is started by the button switch 3010. The rotation of the small motor 308 drives the bidirectional screw 3017 to rotate. The rotation of the bidirectional screw 3017 drives the two splints 307 to move toward the middle at the same time, thereby driving the positioning columns 3012 on the two splints 307 to move toward the middle at the same time, and pass through the two through holes on the guide body 100 to press against the surface of the patient's healthy teeth, thereby achieving effective fixation of the guide body 100 and effectively ensuring that the guide is in place when implanting teeth on the patient. The stability of the main body 100, and in this embodiment, by setting the expansion component 400, in the process of effectively fixing the guide plate body 100 by driving the bidirectional screw 3017 to rotate through the small motor 308, the rotation of the small motor 308 can drive the first bevel gear 3019 to rotate, and the rotation of the first bevel gear 3019 drives the second bevel gear 3020 and the threaded column 406 to rotate. The rotation of the threaded column 406 drives the sliding column 402 to move upward under the action of the internal threaded sleeve 407, thereby driving the support frame 403 to move upward and effectively support the patient's upper teeth, thereby achieving the purpose of automatically expanding the patient's mouth, which is convenient for doctors to perform dental implant operations.

[0081] The above describes an embodiment of this specific implementation method, but this embodiment is not limited to the above specific implementation method. The above specific implementation method is merely illustrative and not restrictive. Ordinary technicians in this field can also make many forms based on the inspiration of this embodiment, all of which are protected by this embodiment.

Claims

1. A dental implant guide based on 3D printing, characterized in that: include: A guide plate body (100) and a positioning hole (200), wherein the guide plate body (100) is an arc-shaped structure, and the guide plate body (100) is integrally formed by 3D printing technology and is adapted to the shape of the patient's dental arch, and the positioning hole (200) is provided on the surface of the guide plate body (100) for guiding implant placement, and the size and position of the positioning hole (200) are precisely designed based on CT data of the patient's oral cavity; The surface of the guide plate body (100) is provided with a fixing component (300) for fixing the guide plate body (100) to the patient's healthy teeth; The fixing assembly (300) comprises a connecting tube (301) arranged inside the arc-shaped area of the guide plate body (100), and two symmetrical telescopic columns (302) slidably arranged on the inner wall of the connecting tube (301), and a positioning frame (303) is provided at one end of the two telescopic columns (302) away from the connecting tube (301), and the two positioning frames (303) are respectively clamped and arranged on the two end surfaces of the guide plate body (100); A rotating frame (304) is fixedly provided at the end of the telescopic column (302), a rotating shaft (305) is rotatably provided on the inner wall of the rotating frame (304), a rotating block (306) is fixedly provided on the outer surface of the positioning frame (303), and a fixing hole is provided on the surface of the rotating block (306) for fixed connection with the outer surface of the rotating shaft (305); The inner wall of the positioning frame (303) is provided with two symmetrical clamping plates (307) for sliding. A small motor (308) for driving the two clamping plates (307) to move toward the middle at the same time is fixed on the upper surface of the positioning frame (303). A charging power supply box (309), a button switch (3010) and a small PLC controller (3011) are also fixed on the upper surface of the positioning frame (303). A charging power supply is provided inside the charging power supply box (309). Positioning columns (3012) are fixed on the opposite surfaces of the two clamping plates (307), and both end surfaces of the guide plate body (100) are provided with corresponding and A through hole is provided opposite to a positioning column (3012), a cylindrical cavity is provided at the end of the positioning column (3012), and a buffer column (3013) is slidably provided on the inner wall of the cylindrical cavity, a rubber anti-slip pad (3014) is fixedly provided at one end of the buffer column (3013), a buffer spring (3015) is fixedly provided at the other end of the buffer column (3013), the other end of the buffer spring (3015) is fixedly connected to the inner wall of the arc cavity, and a contact sensor (3016) is fixedly provided on the inner wall of the cylindrical cavity, and the contact sensor (3016) and the small motor (308) are both electrically connected to the small PLC controller (3011) via a wire.

2. A 3D printing-based dental implant guide according to claim 1, characterized in that: The guide plate body (100) is made of medical-grade photosensitive resin material.

3. The 3D printing-based dental implant guide according to claim 1, characterized in that: The inner wall of the positioning hole (200) is provided with a titanium-platable coating for improving the wear resistance and guiding accuracy of the inner wall of the positioning hole (200).

4. The 3D printing-based dental implant guide according to claim 1, characterized in that: A rectangular groove is provided on the inner top wall of the positioning frame (303), a bidirectional lead screw (3017) is rotatably provided on the inner wall of the rectangular groove, the top ends of the two clamps (307) are slidably connected to the inner wall of the rectangular groove, two symmetrical limiting rods (3018) are fixed to the inner wall of the rectangular groove, and the surfaces of the two clamps (307) are respectively provided with threaded holes threadedly connected to the outer surface of the bidirectional lead screw (3017), and sliding holes slidably connected to the outer surfaces of the two limiting rods (3018).

5. The 3D printing-based dental implant guide according to claim 4, characterized in that: The upper surface of the positioning frame (303) is provided with an opening component (400) for opening the patient's mouth during the process of fixing the guide plate body (100), and the opening component (400) includes a fixing cylinder (401) fixed on the upper surface of the positioning frame (303), and a sliding column (402) slidably arranged on the inner wall of the fixing cylinder (401), and the top of the sliding column (402) is provided with a support frame (403) for supporting the patient's upper teeth, the top of the sliding column (402) is fixed with a universal ball head (404), and the lower surface of the support frame (403) is fixed with a rotating seat (405), and the lower surface of the rotating seat (405) is provided with a spherical rotating cavity that is rotatably connected to the outer surface of the universal ball head (404).

6. The 3D printing-based dental implant guide according to claim 5, characterized in that: The inner bottom wall of the fixed cylinder (401) is rotatably provided with a threaded column (406) extending into the interior of the rectangular groove, and the bottom end of the threaded column (406) and the surface of the bidirectional lead screw (3017) are respectively fixed with a third bevel gear (3021) and a fourth bevel gear (3022) that mesh with each other, an annular groove is formed on the inner ring surface of the bottom of the fixed cylinder (401), and the output end of the small motor (308) extends to the interior of the annular groove in the fixed cylinder (401) and is fixed with a first bevel gear (3019), and the outer surface of the threaded column (406) is fixed with a second bevel gear (3020) that meshes with the first bevel gear (3019); The bottom end of the sliding column (402) is provided with a cylindrical groove corresponding to the threaded column (406), and the inner wall of the bottom end of the cylindrical groove is fixedly provided with an internal threaded sleeve (407), the inner wall of the internal threaded sleeve (407) is threadedly connected to the outer surface of the threaded column (406), the outer surface of the bottom end of the sliding column (402) is fixedly provided with two symmetrical limit blocks (408), and the inner wall of the fixed cylinder (401) is provided with a limit sliding groove for the limit blocks (408) to slide.

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