Customized personalized abutment and screw, manufacturing equipment and manufacturing method

Abstract

The present invention discloses a customized personalized abutment and screw, a manufacturing device and a manufacturing method, wherein the customized personalized abutment and screw include a personalized abutment, a screw, a crown and a fixing assembly, wherein the personalized abutment includes an upper abutment, a middle abutment is integrally formed at the lower end of the upper abutment, a lower abutment is integrally formed at the lower end of the middle abutment, a coating is provided on the lower end side wall of the upper abutment and the side wall of the middle abutment, and assembly holes are provided in the upper abutment, the middle abutment and the lower abutment in a through manner. The present invention sets a fixing assembly to fix the abutment and the crown, and the crown is installed on the abutment without lateral displacement and rotation through the cooperation of the upper limit projection of the crown and the upper limit groove of the abutment, and after the crown is installed in place, the clamping rod on the abutment and the clamping groove on the crown cooperate to limit the up and down movement between the crown and the abutment, so that the position of the crown after installation is consistent with the set position while ensuring stability during use.

Description

Technical Field

[0001] The present invention belongs to the technical field of dental implantation, and in particular relates to a customized personalized base and screws, a manufacturing device and a manufacturing method. Background Art

[0002] Personalized abutments and screws are important products for dental implant restoration. They can be individually designed and manufactured according to the patient's oral condition and implant location to ensure the stability and aesthetics of the restoration. When implanting a tooth, a pure titanium implant is implanted into the bone, and the implant and bone are tightly combined in a biocompatible manner. The personalized abutment is then fixed to the implant with screws. Once completed, the crown can be connected to the personalized abutment to complete the tooth implant.

[0003] When a crown is installed on a base, it is usually connected by threads or adhesives. When the crown and the base are connected by threads, the position of the crown after tightening is affected by the initial position, making it difficult to adjust the position of the crown after installation. It is not possible to ensure that the crown is in the set position while being firmly installed. When the crown and the base are connected by adhesives, although it can ensure that the crown is in the set position after installation, there is a possibility that the crown and the base may loosen during use. At the same time, both threads and adhesives connect the crown and the base as one. Medical staff have found that many patients have excessive force when chewing after implantation, which causes the crown to be subjected to greater force. The crown will directly transmit the force to the base, resulting in damage to the crown or the base, and re-implantation is required, which increases the cost of implantation for patients and requires them to endure the pain of secondary implantation.

[0004] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0005] The purpose of the present invention is to provide a customized personalized abutment and screws, a manufacturing device and a manufacturing method, which can solve the problems existing in the installation between the crown and the personalized abutment and the problem that the impact force of the crown can easily cause damage to the crown and the abutment.

[0006] In order to achieve the above object, a technical solution provided by a specific embodiment of the present invention is as follows:

[0007] Customized abutment and screws, including:

[0008] A personalized abutment includes an upper abutment, wherein the lower end of the upper abutment is integrally formed with a middle abutment, and the lower end of the middle abutment is integrally formed with a lower abutment. The upper abutment, the middle abutment and the lower abutment are integrally formed to form an abutment, wherein the upper abutment is used for installing a crown, and the lower abutment is used for installing the abutment in an implant. A coating is provided on the lower end side wall of the upper abutment and the side wall of the middle abutment, and the portion of the upper abutment and the middle abutment where the coating is provided is the portion where the abutment contacts the human body, and the coating is provided so that the abutment will not produce rejection after contacting the human body tissue. Assembly holes are provided in the upper abutment, the middle abutment and the lower abutment in a through manner, and the assembly holes are used for fixing the abutment and the implant.

[0009] A screw is used to fix a personalized abutment on an implant, comprising a screw head, the lower end of which is integrally formed with a screw rod. The screw head and the screw rod are installed in an assembly hole, and the lower end of the screw rod is threadedly connected to the implant. The personalized abutment can be stably installed on the implant through crimping of the screw head.

[0010] The dental crown comprises a dental crown body, wherein a mounting groove is provided at the bottom of the dental crown body, and the inner diameter of the mounting groove matches the outer diameter of the upper base, so that the dental crown body can be mounted on the upper base through the mounting groove.

[0011] The fixing assembly includes a sliding groove and a clamping groove, wherein the sliding groove and the clamping groove are both provided with a pair, wherein the pair of sliding grooves are symmetrically opened on the side wall of the upper base, and the pair of clamping grooves are symmetrically opened on the inner side wall of the mounting groove, and when the crown is installed on the personalized base, the central axes of the pair of sliding grooves and the pair of clamping grooves are on the same straight line. A clamping rod is slidably connected in the sliding groove, so that the clamping rod can slide in the sliding groove, and a telescopic spring is sleeved on the clamping rod, and the clamping rod can be pushed to slide in the sliding groove by the telescopic spring. The end of the clamping rod away from the telescopic spring is placed in the clamping groove, one end of the clamping rod is placed in the clamping groove, and the other end of the clamping rod is placed in the sliding groove, so that the personalized base and the crown can be limited to move each other by the clamping rod, thereby ensuring that the crown is stably installed on the personalized base, and a pair of clamping rods are provided, and the two ends of the crown can be fixed on the personalized base by the pair of clamping rods, ensuring the stability of the crown after installation. Since the position of the crown installed on the personalized abutment is fixed when the crown is fixed on the personalized abutment by a pair of clamping rods, it can be ensured that the position of the crown installed on the personalized abutment is consistent with the set position, and the use of a snap connection makes it convenient to install the crown on the personalized abutment, thereby improving the efficiency of installing the crown on the personalized abutment.

[0012] In one or more embodiments of the present invention, the upper base, the middle base and the lower base are all made of stainless steel, the coating is made of polymer biomaterial or pure titanium material, and the coating is arranged on the lower end side wall of the upper base and the side wall of the middle base by cladding. In order to reduce the cost of dental implantation, the upper base, the middle base and the lower base are made of stainless steel. At the same time, in order to prevent the part of the personalized base that contacts the human tissue from being rejected by the human body, the coating is made of polymer material. Since the polymer biomaterial is extremely expensive, only one layer is arranged by cladding at the position where the personalized base contacts the human body.

[0013] In one or more embodiments of the present invention, the assembly hole is provided with a first internal thread at a position located in the lower half of the upper base, and the first internal thread is used to connect the screw, so that the screw is stable when installed in the personalized base. The outer wall of the lower base is provided with a first external thread, and the personalized base can be installed in the implant through the first external thread, so that the personalized base is stable when installed on the implant. The upper end of the upper base is provided with a buffer layer. Since the upper end of the upper base will contact the crown, the buffer layer is provided so that the impact force on the crown can be absorbed by the buffer layer, thereby absorbing the energy generated by the impact force, and the impact force can be well buffered. The coating is provided with a first sealing layer on the outer wall located in the lower half of the upper base, and the crowns are tightly sealed with each other when installed on the personalized base through the first sealing layer.

[0014] In one or more embodiments of the present invention, a second external thread is provided on the outer side wall of the screw head, and the screw head can be threadedly connected to the assembly hole through the cooperation of the second external thread and the first internal thread, so that the screw is stable when installed in the personalized base. A third external thread is provided on the lower end side wall of the screw rod, and the screw can be threadedly connected to the implant through the third external thread, so that the connection between the screw and the implant is stable, so that the personalized base can be stably installed on the implant under the action of the screw. A hexagonal slot is provided on the top of the screw head, and the hexagonal slot facilitates the disassembly and assembly of the screw, so that the screw is firmly installed. The screw head and the screw rod are both made of stainless steel, and the stainless steel material can reduce the cost of the screw.

[0015] In one or more embodiments of the present invention, a second sealing layer is provided on the lower side of the inner side wall of the installation groove, the first sealing layer and the second sealing layer are both made of materials with sealing properties, and the first sealing layer and the installation groove are respectively provided on the outer side wall of the coating and the inner side wall of the second sealing layer by cladding, so that when the crown is installed on the screw, the interaction between the first sealing layer and the second sealing layer makes the crown and the screw well sealed to prevent the entry of contaminants such as saliva. At the same time, when the first sealing layer and the second sealing layer are provided by cladding, it is necessary to ensure that the sealing properties of the material will not be affected after cladding, so the cladding temperature needs to be controlled according to the actual situation of the sealing material during cladding.

[0016] In one or more embodiments of the present invention, an inclined portion is provided at one end of the clamping rod placed in the clamping groove, and the angle between the inclined surface of the clamping rod and the bottom plane is 45 to 60 degrees, so that when the crown is installed on the personalized base by means of a sleeve connection, when the bottom side wall of the crown contacts the inclined surface of the clamping rod, the clamping rod will retract into the sliding groove under the action of the lateral force after being stressed, so that when the crown is installed, the clamping rod can automatically retract after being stressed, which is convenient for the installation of the crown. A limiting ring is fixedly connected to the side wall of the clamping rod, one end of the telescopic spring is mounted on the limiting ring, and the other end of the telescopic spring is mounted on the bottom side wall of the sliding groove away from the opening, so that the telescopic spring will apply a pushing force to the limiting ring, so as to drive the clamping rod to slide in the sliding groove through the limiting ring, so that the end of the clamping rod with the inclined surface can be pushed into the clamping groove. A pair of slide rails are provided on the inner side wall of the sliding groove, and a slider is slidably connected in each of the pair of slide rails. One end of the slider is fixedly connected to the side wall of the limiting ring. The sliding direction of the slider is limited by the pair of slide rails, so that the sliding direction of the limiting ring can be limited by the slider, thereby limiting the reverse direction of the sliding of the clamping rod, so that the clamping rod is stable when pushed to slide by the telescopic spring.

[0017] In one or more embodiments of the present invention, a buffer ring is installed in the clamping groove, and one end of the clamping rod placed in the clamping groove is placed in the buffer ring. When the crown is subjected to impact force, the clamping groove will contact the buffer ring, so that the impact force on the clamping groove can be buffered by the buffer ring, ensuring that the crown and the personalized base will not be damaged by the impact force. A pair of mounting holes are opened on the side wall of the crown body in a through manner, and the pair of mounting holes are respectively connected to the pair of clamping grooves. A push rod is slidably connected in the mounting hole so that the push rod can slide in the mounting hole. One end of the push rod is placed in the clamping groove, and one end of the push rod placed in the clamping groove is fixedly connected to a push plate, so that when the push rod slides, it can drive the push plate to slide, so that the clamping rod is pushed to move by the sliding of the push plate, so that one end of the inclined surface of the clamping rod is retracted into the sliding groove, so that the crown can be removed from the personalized base, making the disassembly between the crown and the personalized base convenient. A sealing ring is arranged between the mounting hole and the push rod, and the sealing ring should be made of a material with good sealing performance and can promote sliding, so that the sealing ring will not affect the sliding of the push rod in the mounting hole, and can prevent contaminants such as saliva from entering the mounting hole, ensuring that the push rod can slide in the mounting hole when the crown is installed for a long time. A pair of limiting grooves are opened on the side wall of the upper base, and the pair of limiting grooves are arranged directly above the pair of sliding grooves. A pair of limiting protrusions are integrally formed on the inner side wall of the mounting groove, and the pair of limiting protrusions are arranged directly above the pair of clamping grooves. The pair of limiting protrusions are respectively slidably connected to the pair of limiting grooves. Through the cooperation of the limiting protrusions and the limiting grooves, the horizontal movement of the crown installed on the personalized base can be limited. At the same time, when the crown slides downward on the personalized base, it can be ensured that the positions of the sliding groove and the clamping groove correspond to each other, so that the clamping rod can extend into the clamping groove, so that the vertical movement of the crown when it is installed on the personalized base is limited by the clamping rod, so that the crown is stably installed on the personalized base.

[0018] In one or more embodiments of the present invention, the buffer layer and the buffer ring are both made of rubber material, which has good buffering performance, so as to facilitate buffering the force between the crown and the personalized abutment. The rubber material is one of silicone rubber or fluororubber, which has good wear resistance, thereby increasing the service life of the buffer layer and the buffer ring, ensuring that they can have the performance of buffering the impact force for a long time.

[0019] A manufacturing device for customized personalized abutments and screws, the manufacturing device comprising:

[0020] The model building system includes an image acquisition component and a three-dimensional model building component; the image acquisition component collects images of the patient's oral cavity, and the three-dimensional modeling component can obtain a three-dimensional map of the patient's oral cavity through the collected images. Then, medical staff customize a three-dimensional map of the implant, personalized abutment, screw and crown that matches the patient according to the three-dimensional map of the patient's oral cavity.

[0021] The preparation system includes a 3D printing device, wherein the 3D printing device is a 3D printing device with a laser cladding function. The 3D printing device prepares each component according to a three-dimensional image of an implant, a personalized abutment, a screw, and a crown.

[0022] A method for manufacturing a customized personalized abutment and screw manufacturing device, the manufacturing method comprising:

[0023] S1. A three-dimensional image of a personalized abutment and screws is obtained through a model building system, and an image of the patient's oral cavity is obtained through an image acquisition component. The three-dimensional model building component obtains a three-dimensional image of the patient's oral cavity through the image. Medical staff establish three-dimensional images of the implants, personalized abutments, screws, and crowns that need to be implanted based on the three-dimensional image of the patient's oral cavity. When performing dental implants on patients, in order to make the implanted teeth highly match the patient, the image of the patient's oral cavity is obtained through image acquisition equipment such as CT. The three-dimensional modeling component can obtain a three-dimensional model of the patient's oral cavity through the three-dimensional model building component based on the image. Medical staff can design three-dimensional images of implants, personalized abutments, screws, and crowns that are highly matched with the patient's oral cavity based on the patient's oral model to facilitate their production.

[0024] S2. The preparation system prepares implants, personalized abutments, screws and crowns according to the three-dimensional diagram. The preparation of personalized abutments and screws is completed by 3D printing equipment. When the 3D printing equipment is used to make personalized abutments, the upper abutment, the middle abutment and the lower abutment are first prepared by 3D printing using the printing material of stainless steel material, and then the biomaterial layer is melted on the outer side of the upper abutment and the middle abutment by melting, so as to complete the production of the coating. At the same time, it is necessary to ensure that the sliding of the clamping rod in the sliding groove is smooth, and the performance of the telescopic spring is stable; when the 3D printing equipment is used to make crowns, after the printing is completed for the production of the crown body, it is necessary to ensure that the push rod slides smoothly in the mounting hole, and that the sealing ring has good sealing between the mounting hole and the push rod. When the first sealing layer and the second sealing layer are made by cladding, the cladding temperature needs to be controlled to ensure that the performance of the sealing material will not be affected by high temperature.

[0025] Compared with the prior art, the present invention has the following advantages:

[0026] The present invention sets a fixing assembly to fix the base and the crown. The upper limit projection of the crown cooperates with the upper limit groove of the base, so that the crown will not be displaced or rotated laterally when it is installed on the base. After the crown is installed in place, the clamping rod on the base cooperates with the clamping groove on the crown to limit the up and down movement between the crown and the base, so that the position of the crown after installation is consistent with the set position while ensuring stability, and avoiding loosening of the crown when it is used.

[0027] The present invention provides a buffer layer on the base and a buffer ring in the clamping groove of the crown. When the crown is subjected to a large impact force during occlusion, the buffer layer and the buffer ring can effectively buffer and absorb the impact force, thereby preventing the crown from directly applying the impact force to the base, thereby effectively preventing the crown or the base from being damaged due to the impact force, and avoiding the burden of replantation on the patient.

[0028] The personalized base and screw main body materials of the present invention are both made of stainless steel. At the same time, the part of the personalized base that contacts the human tissue is provided with a coating of polymer biomaterials, which reduces the cost of the personalized base and screws while ensuring their performance in use, and has good promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] 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 or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 A front view of a customized personalized abutment and screws in one embodiment of the present invention;

[0031] Figure 2 A three-dimensional diagram of a customized personalized abutment and screws in one embodiment of the present invention;

[0032] Figure 3 A cross-sectional view of a customized personalized abutment and screws in one embodiment of the present invention;

[0033] Figure 4 The explosion of a customized personalized base and screw in one embodiment of the present invention Figure 1 ;

[0034] Figure 5 The explosion of a customized personalized base and screw in one embodiment of the present invention Figure 2 ;

[0035] Figure 6A cross-sectional view of a customized personalized abutment and screws in one embodiment of the present invention;

[0036] Figure 7 In one embodiment of the present invention Figure 6 The enlarged view of point A in the middle;

[0037] Figure 8 A schematic diagram of a personalized base station in one embodiment of the present invention;

[0038] Fig. 9 is a schematic diagram of a screw in one embodiment of the present invention;

[0039] Fig.10 is a schematic diagram of a dental crown in one embodiment of the present invention;

[0040] Fig.11 Schematic diagram of the connection of the clamping rod in one embodiment of the present invention.

[0041] Description of main reference numerals:

[0042] 1-personalized abutment, 11-upper abutment, 12-middle abutment, 13-lower abutment, 14-coating, 15-assembly hole, 16-first internal thread, 17-first external thread, 18-buffer layer, 19-first sealing layer, 2-screw, 21-screw head, 22-screw, 23-second external thread, 24-third external thread, 25-hexagonal slot, 3-crown, 31-crown body, 32-mounting slot, 33-second sealing layer, 4-fixing component, 41-sliding slot, 42-clamping slot, 43-clamping rod, 44-telescopic spring, 45-limiting ring, 46-slide rail, 47-slider, 48-buffer ring, 49-mounting hole, 410-push rod, 411-push plate, 412-sealing ring, 413-limiting protrusion, 414-limiting slot. DETAILED DESCRIPTION

[0043] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only 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 should fall within the scope of protection of the present invention.

[0044] like Figure 1 to Figure 6 As shown, a customized personalized abutment and screw in one embodiment of the present invention includes a personalized abutment 1, a screw 2, a crown 3 and a fixing component 4.

[0045] like Figure 1 to Figure 6As shown, the personalized abutment 1 includes an upper abutment 11, a middle abutment 12 is integrally formed at the lower end of the upper abutment 11, a lower abutment 13 is integrally formed at the lower end of the middle abutment 12, and the upper abutment 11, the middle abutment 12 and the lower abutment 13 are integrally formed to form a personalized abutment, wherein the upper abutment 11 is used for installing a crown, and the lower abutment 13 is used for installing the abutment in an implant. A coating 14 is provided on the lower end side wall of the upper abutment 11 and the side wall of the middle abutment 12, and the portion of the upper abutment 11 and the middle abutment 12 where the coating 14 is provided is the portion where the abutment contacts the human body, and the coating 14 is provided so that the abutment will not produce rejection after contacting the human body tissue. An assembly hole 15 is provided in the upper abutment 11, the middle abutment 12 and the lower abutment 13 in a through manner, and the assembly hole 15 is used for fixing the abutment and the implant.

[0046] Preferably, the upper base 11, the middle base 12 and the lower base 13 are all made of stainless steel, the coating 14 is made of polymer biomaterial or pure titanium material, and the coating 14 is arranged on the lower end side wall of the upper base 11 and the side wall of the middle base 12 by cladding. In order to reduce the cost of dental implantation, the upper base 11, the middle base 12 and the lower base 13 are made of stainless steel. At the same time, in order to prevent the part of the personalized base 1 that contacts the human tissue from being rejected by the human body, the coating 14 is made of polymer material or pure titanium material. Since polymer biomaterial and pure titanium material are extremely expensive, only one layer is arranged by cladding at the position where the personalized base 1 contacts the human body, so as to reduce the cost of the personalized base.

[0047] like Figure 8 As shown, the assembly hole 15 is provided with a first internal thread 16 at the lower half of the upper base 11, and the first internal thread 16 is used to connect the screw 2, so that the screw 2 is stable when installed in the personalized base 1. The outer wall of the lower base 13 is provided with a first external thread 17, through which the personalized base 1 can be installed in the implant, so that the personalized base 1 is stable when installed on the implant.

[0048] like Figure 6 and Figure 8 As shown, a buffer layer 18 is provided at the upper end of the upper base 11. Since the upper end of the upper base 11 will contact the crown 3, the buffer layer 18 is provided so as to absorb the impact force received by the crown 3 through the buffer layer 18, thereby absorbing the energy generated by the impact force, and thus the impact force can be well buffered. The coating 14 is provided with a first sealing layer 19 on the outer wall located at the lower half of the upper base 11, and the crown 3 is tightly sealed with each other when installed on the personalized base 1 through the first sealing layer 19.

[0049] like Figure 1 to Figure 6As shown, the screw 2 is used to fix the personalized abutment 1 on the implant. The screw 2 includes a screw head 21. The lower end of the screw head 21 is integrally formed with a screw rod 22. The screw head 21 and the screw rod 22 are installed in the assembly hole 15. By threading the lower end of the screw rod 22 into the implant, the personalized abutment 1 can be stably installed on the implant through the crimping of the screw head 21.

[0050] like Fig. 9 As shown, a second external thread 23 is provided on the outer wall of the screw head 21. Through the cooperation of the second external thread 23 and the first internal thread 16, the screw head 21 can be threadedly connected to the assembly hole 15, so that the screw 2 is stably installed in the personalized base 1. A third external thread 24 is provided on the lower end side wall of the screw rod 22. Through the third external thread 24, the screw 2 can be threadedly connected to the implant, so that the connection between the screw 2 and the implant is stable, so that the personalized base 1 can be stably installed on the implant under the action of the screw 2. A hexagonal slot 25 is provided on the top of the screw head 21, which facilitates the disassembly and assembly of the screw 2, so that the screw 2 is firmly installed.

[0051] Preferably, the screw head 21 and the screw rod 22 are both made of stainless steel, which can reduce the cost of the screw 2.

[0052] like Figure 1 to Figure 6 As shown, the crown 3 includes a crown body 31 , a mounting groove 32 is provided at the bottom of the crown body 31 , and the inner diameter of the mounting groove 32 matches the outer diameter of the upper base 11 , so that the crown body 31 can be installed on the upper base 11 through the mounting groove 32 .

[0053] like Fig.10 As shown, a second sealing layer 33 is provided on the lower side of the inner wall of the installation groove 32, and the first sealing layer 19 and the second sealing layer 33 are both made of materials with sealing properties, and the first sealing layer 19 and the second sealing layer 33 are respectively provided on the outer wall of the coating 14 and the inner wall of the installation groove 32 by cladding, so that when the crown 3 is installed on the screw 2, the interaction between the first sealing layer 19 and the second sealing layer 33 makes the crown 3 and the screw 2 well sealed to prevent the entry of pollutants such as saliva. At the same time, when the first sealing layer 19 and the second sealing layer 33 are provided by cladding, it is necessary to ensure that the sealing properties of the material will not be affected after cladding, so the cladding temperature needs to be controlled according to the actual situation of the sealing material during cladding.

[0054] like Figure 3~Figure 7As shown, the fixing assembly 4 includes a sliding groove 41 and a clamping groove 42, and a pair of the sliding grooves 41 and the clamping grooves 42 are provided. The pair of sliding grooves 41 is symmetrically opened on the side wall of the upper base 11, and the pair of clamping grooves 42 is symmetrically opened on the inner side wall of the installation groove 32, and when the crown 3 is installed on the personalized base 1, the central axes of the pair of sliding grooves 41 and the pair of clamping grooves 42 are on the same straight line. A clamping rod 43 is slidably connected in the sliding groove 41, so that the clamping rod 43 can slide in the sliding groove 41, and a telescopic spring 44 is sleeved on the clamping rod 43, and the telescopic spring 44 can push the clamping rod 43 to slide in the sliding groove 41. One end of the clamping rod 43 away from the telescopic spring 44 is placed in the clamping groove 42, one end of the clamping rod 43 is placed in the clamping groove 42, and the other end of the clamping rod 43 is placed in the sliding groove 41. The clamping rod 43 can limit the movement between the personalized base 1 and the crown 3, thereby ensuring that the crown 3 is stably installed on the personalized base 1. At the same time, a pair of clamping rods 43 are provided. Through a pair of clamping rods 43, the two ends of the crown 3 can be fixed on the personalized base 1 to ensure the stability of the crown 3 after installation.

[0055] Preferably, since the position of the crown 3 installed on the personalized abutment 1 is fixed when the crown 3 is fixed on the personalized abutment 1 by a pair of clamping rods 43, it can be ensured that the position of the crown 3 installed on the personalized abutment 1 is consistent with the set position, and the snap connection method makes it convenient to install the crown 3 on the personalized abutment 1, thereby improving the efficiency of installing the crown 3 on the personalized abutment 1.

[0056] like Figure 7 and Figure 8 As shown, one end of the clamping rod 43 placed in the clamping groove 42 is provided with an inclined portion, and the angle between the inclined surface of the clamping rod 43 and the bottom plane is 45 to 60 degrees, so that when the crown 3 is installed on the personalized base 1 by means of sleeve connection, when the bottom side wall of the crown 3 contacts the inclined surface of the clamping rod 43, the clamping rod 43 will retract into the sliding groove 41 under the action of the lateral force after being subjected to force, so that when the crown 3 is installed, the clamping rod 43 can automatically retract after being subjected to force, which is convenient for the installation of the crown 3.

[0057] like Figure 7 As shown, a limiting ring 45 is fixedly connected to the side wall of the clamping rod 43, one end of the telescopic spring 44 is installed on the limiting ring 45, and the other end of the telescopic spring 44 is installed on the bottom side wall of the sliding groove 41 away from the opening, so that the telescopic spring 44 will apply a pushing force to the limiting ring 45, so that the clamping rod 43 can be driven to slide in the sliding groove 41 through the limiting ring 45, and the end of the clamping rod 43 with the inclined surface can be pushed into the clamping groove 42.

[0058] like Figure 7 and Fig.11As shown, a pair of slide rails 46 are provided on the inner side wall of the sliding groove 41, and a slider 47 is slidably connected in the pair of slide rails 46. One end of the slider 47 is fixedly connected to the side wall of the limiting ring 45. The sliding direction of the slider 47 is limited by the pair of slide rails 46, so that the sliding direction of the limiting ring 45 can be limited by the slider 47, thereby limiting the sliding direction of the clamping rod 43, and further limiting the sliding direction of the clamping rod 43, so that the clamping rod 43 is stable when pushed to slide by the telescopic spring 44.

[0059] like Figure 7 As shown, a buffer ring 48 is installed in the clamping groove 42, and one end of the clamping rod 43 placed in the clamping groove 42 is placed in the buffer ring 48. When the crown 3 is subjected to impact force, the clamping groove 42 will contact with the buffer ring 48, so that the impact force of the clamping groove 42 can be buffered by the buffer ring 48, ensuring that the crown 3 and the personalized base 1 will not be damaged by the impact force.

[0060] like Figure 6 and Figure 7 As shown, a pair of mounting holes 49 are opened in a through manner on the side wall of the crown body 31, and the pair of mounting holes 49 are respectively connected to a pair of clamping grooves 42, and a push rod 410 is slidably connected in the mounting hole 49, so that the push rod 410 can slide in the mounting hole 49, and one end of the push rod 410 is placed in the clamping groove 42, and the end of the push rod 410 placed in the clamping groove 42 is fixedly connected with a push plate 411, so that when the push rod 410 slides, it can drive the push plate 411 to slide, so that the clamping rod 43 can be pushed to move by the sliding of the push plate 411, so that one end of the inclined surface of the clamping rod 43 is retracted into the sliding groove 41, so that the crown 3 can be removed from the personalized base 1, making the disassembly between the crown 3 and the personalized base 1 convenient. A sealing ring 412 is provided between the mounting hole 49 and the push rod 410. Meanwhile, the sealing ring 412 should be made of a material with good sealing performance and capable of promoting sliding, so that the sealing ring 412 will not affect the sliding of the push rod 410 in the mounting hole 49, and can prevent pollutants such as saliva from entering the mounting hole 49, thereby ensuring that the push rod 410 can slide in the mounting hole 49 when disassembling and assembling after the crown 3 has been installed for a long time.

[0061] like Figure 4 and Figure 5As shown, a pair of limiting grooves 414 are provided on the side wall of the upper base 11, and the pair of limiting grooves 414 are arranged directly above the pair of sliding grooves 41. A pair of limiting protrusions 413 are integrally formed on the inner side wall of the installation groove 32, and the pair of limiting protrusions 413 are arranged directly above the pair of clamping grooves 42. The pair of limiting protrusions 413 are respectively slidably connected to the pair of limiting grooves 414. Through the cooperation of the limiting protrusions 413 and the limiting grooves 414, the horizontal movement of the crown 3 installed on the personalized base 1 can be limited. At the same time, when the crown 3 slides downward on the personalized base 1, it can be ensured that the positions of the sliding groove 41 and the clamping groove 42 correspond to each other, so that the clamping rod 43 can be extended into the clamping groove 42, thereby limiting the up and down movement of the crown 3 when it is installed on the personalized base 1 through the clamping rod 43, so that the crown 3 is stably installed on the personalized base 1.

[0062] Preferably, the buffer layer 18 and the buffer ring 48 are both made of rubber material, which has excellent buffering performance, thereby facilitating buffering of the force between the crown 3 and the personalized base 1. The rubber material is one of silicone rubber or fluororubber, which has excellent wear resistance, thereby increasing the service life of the buffer layer 18 and the buffer ring 48, ensuring that they can have the performance of buffering the impact force for a long time.

[0063] During use, after the implant is implanted and firmly fused, the personalized abutment 1 is threadedly connected to the implant through the first external thread 17, and then the screw 2 is placed in the assembly hole 15, and the screw 2 is driven to rotate by a hexagonal wrench, and the screw 2 is threadedly connected to the implant through the third external thread 24, and at the same time, the screw 2 is threadedly connected to the personalized abutment 1 through the second external thread 23, so that the implant, the personalized abutment 1 and the screw 2 are firmly installed with each other;

[0064] When installing the crown 3, it is necessary to ensure that a pair of limiting protrusions 413 on the crown 3 are slidably connected to a pair of limiting grooves 414 on the side wall of the personalized base 1, so that the limiting protrusions 413 slide in the limiting grooves 414, thereby making the crown 3 slide downward on the personalized base 1. When sliding, the bottom side wall of the crown 3 will contact the inclined portion of the clamping rod 43, and the inclined portion will be subjected to lateral force so that the clamping rod 43 is pushed into the sliding groove 41. When the sliding groove 41 is retracted into the sliding groove 41, the telescopic spring 44 will be compressed. When the crown 3 continues to move downward, it moves to the sliding groove 41 and the clamping groove 42. When the positions correspond, the telescopic spring 44 will push the clamping rod 43 to extend out from the sliding groove 41, so that one end of the clamping rod 43 with the inclined portion extends into the clamping groove 42, so that the clamping rod 43 can limit the up and down movement between the crown 3 and the personalized base 1, so as to ensure that the crown 3 is installed on the personalized base 1 in a position consistent with the setting and remains stable; when removing the crown 3, the pair of push rods 410 are pushed by a tool to move closer to each other, so that the clamping rod 43 can be pushed back into the sliding groove 41, so that the fixing component 4 can slide out from the personalized base 1;

[0065] At the same time, when the crown 3 is installed on the personalized base 1, the impact force on the crown 3 can be buffered under the action of the buffer layer 18 and the buffer ring 48, so that the crown 3 will not transmit the impact force to the personalized base 1, thereby ensuring that the crown 3 and the personalized base 1 will not be damaged by the impact.

[0066] The manufacturing equipment of the customized personalized abutment and screw in one embodiment of the present invention comprises:

[0067] The model building system includes an image acquisition component and a three-dimensional model building component; the image acquisition component collects images of the patient's oral cavity, and the three-dimensional modeling component can obtain a three-dimensional map of the patient's oral cavity through the collected images. Then, medical staff customize a three-dimensional map of the implant, personalized abutment, screw and crown that matches the patient according to the three-dimensional map of the patient's oral cavity.

[0068] The preparation system includes a 3D printing device, which uses a 3D printing device with a laser cladding function. The 3D printing device prepares each component based on a three-dimensional image of an implant, a personalized abutment, a screw, and a crown.

[0069] A method for manufacturing a customized personalized abutment and screw manufacturing device in one embodiment of the present invention comprises:

[0070] S1. A three-dimensional image of a personalized abutment and screws is obtained through a model building system, and an image of the patient's oral cavity is obtained through an image acquisition component. The three-dimensional model building component obtains a three-dimensional image of the patient's oral cavity through the image. Medical staff establish three-dimensional images of the implants, personalized abutments, screws, and crowns that need to be implanted based on the three-dimensional image of the patient's oral cavity. When performing dental implants on patients, in order to make the implanted teeth highly match the patient, the image of the patient's oral cavity is obtained through image acquisition equipment such as CT. The three-dimensional modeling component can obtain a three-dimensional model of the patient's oral cavity through the three-dimensional model building component based on the image. Medical staff can design three-dimensional images of implants, personalized abutments, screws, and crowns that are highly matched with the patient's oral cavity based on the patient's oral model to facilitate their production.

[0071] S2. The preparation system prepares implants, personalized bases, screws and crowns according to the three-dimensional diagram. The preparation of personalized bases and screws is completed by 3D printing equipment. When the 3D printing equipment makes the personalized base 1, firstly, the upper base 11, the middle base 12 and the lower base 13 are prepared by 3D printing using the printing material of stainless steel material, and then the biomaterial layer is melted on the outer side of the upper base 11 and the middle base 12 by melting, so as to complete the preparation of the coating 14. At the same time, it is necessary to ensure that the clamping rod 43 slides smoothly in the sliding groove 41 during the preparation, and it is necessary to ensure that the performance of the telescopic spring 44 is stable; when the 3D printing equipment makes the crown 3, after the crown body 31 is printed, it is necessary to ensure that the push rod 410 slides smoothly in the mounting hole 49, and the sealing ring 412 has good sealing between the mounting hole 49 and the push rod 410. When the first sealing layer 19 and the second sealing layer 33 are manufactured by cladding, the cladding temperature needs to be controlled to ensure that the performance of the sealing material is not affected by high temperature.

[0072] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0073] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. Customized personalized abutment and screws, characterized in that: include: A personalized base, comprising an upper base, a middle base is integrally formed at the lower end of the upper base, a lower base is integrally formed at the lower end of the middle base, a coating is provided on the lower end side wall of the upper base and the side wall of the middle base, and assembly holes are provided in the upper base, the middle base and the lower base in a through manner; A screw, comprising a screw head, wherein a screw rod is integrally formed at the lower end of the screw head; A dental crown, comprising a dental crown body, wherein a mounting groove is provided at the bottom of the dental crown body; The fixing component comprises a sliding groove and a clamping groove, wherein the sliding groove and the clamping groove are both provided with a pair, wherein the sliding grooves are symmetrically opened on the side wall of the upper base, and the clamping grooves are symmetrically opened on the inner side wall of the mounting groove, a clamping rod is slidably connected in the sliding groove, a telescopic spring is sleeved on the clamping rod, the end of the clamping rod away from the telescopic spring is placed in the clamping groove, and the end of the clamping rod placed in the clamping groove is provided with an inclined portion, and the angle between the inclined surface of the clamping rod and the bottom plane is 45 to 60 degrees, a limiting ring is fixedly connected to the side wall of the clamping rod, one end of the telescopic spring is installed on the limiting ring, and the other end of the telescopic spring is installed on the bottom side wall of the sliding groove away from the opening, a pair of slide rails are opened on the inner side wall of the sliding groove, and a pair of slide rails are slidably connected with sliders The lockhole that is formed on the upper and lower surfaces of the toothed plate is formed on the bottom surface of the toothed plate, and the lockhole that is formed on the upper and lower surfaces of the toothed plate is formed on the bottom surface of the toothed plate.

2. The customized personalized abutment and screw according to claim 1, characterized in that: The upper base, the middle base and the lower base are all made of stainless steel, the coating is made of polymer biomaterial or pure titanium material, and the coating is arranged on the lower end side wall of the upper base and the side wall of the middle base by cladding.

3. The customized personalized abutment and screw according to claim 1, characterized in that: The assembly hole is provided with a first internal thread at a position located in the lower half of the upper base, the outer wall of the lower base is provided with a first external thread, the upper end of the upper base is provided with a buffer layer, and the coating is provided with a first sealing layer on the outer wall located in the lower half of the upper base.

4. The customized personalized abutment and screw according to claim 1, characterized in that: A second external thread is arranged on the outer side wall of the screw head, a third external thread is arranged on the lower side wall of the screw rod, a hexagonal slot is arranged on the top of the screw head, and the screw head and the screw rod are both made of stainless steel.

5. The customized personalized abutment and screw according to claim 3, characterized in that: A second sealing layer is arranged on the lower side of the inner wall of the installation groove, the first sealing layer and the second sealing layer are both made of materials with sealing properties, and the first sealing layer and the second sealing layer are respectively arranged on the outer wall of the coating and the inner wall of the installation groove by cladding.

6. The customized personalized abutment and screw according to claim 5, characterized in that: The buffer layer and the buffer ring are both made of rubber material, and the rubber material is one of silicone rubber or fluororubber.

7. A method for manufacturing a customized personalized abutment and screw, used for manufacturing the customized personalized abutment and screw as claimed in claims 1 to 6, characterized in that: The production method comprises: S1. The image acquisition component obtains the image of the patient's oral cavity, and the 3D model building component obtains a 3D map of the patient's oral cavity through the image. The medical staff establishes the 3D map of the implant, personalized abutment, screws and crown to be implanted based on the 3D map of the patient's oral cavity; S2. The preparation system prepares implants, personalized abutments, screws and crowns based on the three-dimensional image, and the personalized abutments and screws are prepared through 3D printing equipment.

Images