Bridge for tooth implantation and preparation method thereof

Abstract

The invention discloses a bridge frame for tooth implantation and a preparation method thereof, and relates to the technical field of processing and preparation of bridge frames for tooth implantation, the bridge frame for tooth implantation comprises a bridge body and a retainer, and the lower end of the bridge body is provided with a positioning hole used for assisting installation and connection of the retainer. In the preparation process of the bridge for tooth implantation, the auxiliary device is used for centering and positioning the bridge body, in the centering and positioning process, the bridge body is prevented from being damaged in the supporting process through the flexible support, the welding installation operation of the retainer and the bridge body in the preparation process of the bridge is further facilitated, and in the positioning process, the bridge body is prevented from being damaged. And through abutting of the fan-shaped protection plates, the bridge body below is shielded and protected, and the situation that in the welding process of the retainer and the bridge body, part of welding slag falls to the surface of the bridge body, and consequently the bridge body is damaged is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of processing and preparing a dental implant bridge frame, in particular to a dental implant bridge frame and a preparation method thereof. Background Art

[0002] A dental implant bridge is a structure used to support artificial teeth and plays a role in bearing chewing force. The dental implant bridge is mainly composed of a bridge body and a retainer. During the preparation of the dental implant bridge, the retainer and the bridge body are welded and fixed by welding. During the welding process, auxiliary equipment is required to assist in positioning and clamping the bridge body by means of mutual pressure. During the process of mutual pressure on the bridge body, the pressure force is difficult to operate and control. Excessive pressure can easily cause damage to the bridge body, affecting the preparation and processing of the dental implant bridge. For this reason, we propose a dental implant bridge and a preparation method thereof. Summary of the invention

[0003] The object of the present invention is to provide a dental implant bridge and a preparation method thereof, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions: a bridge frame for dental implants, comprising a bridge body and a retainer, wherein a positioning hole for assisting the retainer in installing and connecting is provided at the lower end of the bridge body;

[0005] Also provided is a method for preparing a dental implant bridge, comprising the following steps:

[0006] S1: Abutment tooth preparation: refer to tooth defect restoration to ensure that the abutment tooth axis is parallel and without undercuts to enhance retention;

[0007] S2: Impression and casting: Take accurate and complete impressions and cast them into models to provide a basis for subsequent production;

[0008] S3: Retainer fabrication and trial fit: Fabricate the retainer and try it on the abutment to ensure proper fit and marginal extension;

[0009] S4: Metal bridge fabrication: Fabricate a metal bridge with a certain mechanical strength to withstand the occlusal force;

[0010] S5: bridge formation: the bridge body 101 is fixed by auxiliary equipment and the fixing body 102 is connected and fixed to the positioning hole 103 by welding to form a bridge;

[0011] The auxiliary equipment includes an operating table, a support pad for supporting the bridge body is fixed in the center of the upper end of the operating table, and a plurality of groups of centering clamping components for centering the bridge body are arranged on the operating table, and each group of centering clamping components is arranged in a circular array on the operating table;

[0012] The central clamping assembly includes a support frame, a transmission plate and a clamping plate. The support frame, the transmission plate and the clamping plate are all located above the operating table and are arranged in sequence from the outside to the inside. The support frame is fixed to the upper end of the operating table. A guide assembly for assisting the movement of the transmission plate is arranged between the support frame and the transmission plate. A telescopic assembly for assisting the telescopic connection is arranged between the clamping plate and the transmission plate. A transmission assembly for transmitting each group of transmission plates is arranged on the operating table. Each group of the clamping plates is provided with a flexible support assembly for flexibly clamping the bridge body and a protective assembly for shielding and protecting the bridge body after supporting and clamping the bridge body.

[0013] Preferably, the flexible support component includes groups of mounting grooves provided on the clamping plate, airbags are installed inside each group of the mounting grooves, and an inflation component for inflating the airbags is provided between the transmission plate and the clamping plate.

[0014] Preferably, the telescopic assembly is fixed to multiple groups of first sleeves on the transmission plate, a first slide rod is slidably connected to the first sleeve, one end of the first slide rod is fixed to the clamping plate, a spring is sleeved on the outer side of the first sleeve, and both ends of the spring are respectively connected to the transmission plate and the clamping plate.

[0015] Preferably, the inflation assembly includes an air cylinder fixed to one side of the splint, one end of the air cylinder is communicated with the interior of the airbag, the other end of the air cylinder is slidably connected to a piston rod, and one end of the piston rod is fixed to the transmission plate.

[0016] Preferably, the protection assembly comprises an L-shaped frame fixed to the upper end of the clamping plate, a fan-shaped protection plate is fixed to one end of the L-shaped frame, and an arc-shaped opening is formed on the fan-shaped protection plate.

[0017] Preferably, the guide assembly includes a plurality of groups of second sleeves fixed on the support frame, each group of the second sleeves is slidably connected with a second slide bar, and one end of the second slide bar is fixed to the transmission plate.

[0018] Preferably, the transmission assembly includes a driving disk arranged on the upper end of the operating table, and a connecting assembly for assisting the driving disk in rotating connection is provided on the operating table. A plurality of groups of inclined grooves are provided on the upper end of the driving disk, and a transmission pin is fixed on each group of the transmission plates, and one end of each group of the transmission pins is respectively slidably connected to each group of inclined grooves, and a rotation assembly for rotating the driving disk is provided on the support frame.

[0019] Preferably, the rotating assembly includes a fixed frame fixed to one side of the supporting frame, a gear ring is fixedly mounted on the outer side of the driving disk, a mounting shaft is rotatably connected to the fixed frame, a gear is fixed to one end of the mounting shaft, the gear and the gear ring are meshed with each other, and a driving motor for driving the mounting shaft is installed on the fixed frame.

[0020] Preferably, the connecting assembly comprises an annular groove formed on the upper end of the operating table, an annular plate is rotatably connected inside the annular groove, and the annular plate is fixed to the lower end of the driving disk.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] During the preparation of the dental implant bridge frame of the present invention, an auxiliary device is used to center the bridge body. During the centering process, flexible support is used to prevent the bridge body from being damaged during the support process, which further facilitates the welding and installation operations of the retainer and the bridge body during the preparation of the bridge frame. During the positioning process, the bridge body below is shielded and protected by the mutual abutment of each group of fan-shaped protective plates, so as to prevent part of the welding slag from falling onto the surface of the bridge body and causing damage to the bridge body during the welding of the retainer and the bridge body. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the bridge structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the structure of the bridge body and the retainer of the present invention;

[0025] Figure 3 It is a schematic diagram of the bridge structure of the present invention;

[0026] Figure 4 It is a schematic diagram of the structure of the operating table of the present invention;

[0027] Figure 5 It is a schematic diagram of the structure of the connection assembly of the present invention;

[0028] Figure 6 It is a schematic diagram of the structure of the rotating assembly of the present invention;

[0029] Figure 7 It is a schematic diagram of the transmission assembly structure of the present invention;

[0030] Figure 8 It is a schematic diagram of the protection state of the protection component of the present invention;

[0031] Fig. 9 It is a schematic diagram of the structure of the flexible support assembly and the guide assembly of the present invention;

[0032] Fig.10 It is a schematic diagram of the structures of the telescopic component, the inflatable component and the protective component of the present invention.

[0033] In the figure: 101, bridge body; 102, retainer; 103, positioning hole; 2, operating table; 3, support pad; 401, support frame; 402, transmission plate; 403, clamping plate; 501, first sleeve; 502, first slide bar; 503, spring; 601, mounting groove; 602, air bag; 701, air cylinder; 702, piston rod; 801, second sleeve; 802, second slide bar; 901, driving plate; 902, inclined groove; 903, driving pin; 1001, gear ring; 1002, fixing frame; 1003, mounting shaft; 1004, gear; 1005, driving motor; 1101, annular groove; 1102, annular plate; 1201, L-shaped frame; 1202, fan-shaped protective plate; 1203, arc opening. DETAILED DESCRIPTION

[0034] 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 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 are within the scope of protection of the present invention.

[0035] Example 1

[0036] See also Figure 1-Figure 10 , a dental implant bridge frame shown in the figure includes a bridge body 101 and a retainer 102, and a positioning hole 103 for assisting the retainer 102 to be installed and connected is opened at the lower end of the bridge body 101;

[0037] Also provided is a method for preparing a dental implant bridge, comprising the following steps:

[0038] S1: Abutment tooth preparation: refer to tooth defect restoration to ensure that the abutment tooth axis is parallel and without undercuts to enhance retention;

[0039] S2: Impression and casting: Take accurate and complete impressions and cast them into models to provide a basis for subsequent production;

[0040] S3: Retainer fabrication and trial fit: Fabricate the retainer and try it on the abutment to ensure proper fit and marginal extension;

[0041] S4: Metal bridge fabrication: Fabricate a metal bridge with a certain mechanical strength to withstand the occlusal force;

[0042] S5: bridge formation: the bridge body 101 is fixed by auxiliary equipment and the fixing body 102 is connected and fixed to the positioning hole 103 by welding to form a bridge;

[0043] The auxiliary equipment includes an operating table 2, a support pad 3 for supporting the bridge body 101 is fixed in the center of the upper end of the operating table 2, and multiple groups of center clamping components for center clamping the bridge body 101 are arranged on the operating table 2, and each group of center clamping components is arranged in a ring array on the operating table 2;

[0044] The central clamping assembly includes a support frame 401, a transmission plate 402 and a clamping plate 403. The support frame 401, the transmission plate 402 and the clamping plate 403 are all located above the operating table 2 and are arranged in sequence from the outside to the inside. The support frame 401 is fixed to the upper end of the operating table 2. A guide assembly for assisting the movement of the transmission plate 402 is arranged between the support frame 401 and the transmission plate 402. A telescopic assembly for assisting the telescopic connection is arranged between the clamping plate 403 and the transmission plate 402. A transmission assembly for transmitting each group of transmission plates 402 is arranged on the operating table 2. Each group of clamping plates 403 is provided with a flexible support assembly for flexibly clamping the bridge body 101 and a protective assembly for shielding and protecting the bridge body 101 after supporting and clamping the bridge body 101.

[0045] It should be noted here that: during the preparation of the dental implant bridge, an auxiliary device is used to center the bridge body 101, and during the centering process, flexible support is used to prevent the bridge body 101 from being damaged during the support process, which further facilitates the welding and installation operations of the retainer 102 and the bridge body 101 during the preparation of the bridge, and during the positioning process, the bridge body 101 below is shielded and protected by the mutual abutment of each group of fan-shaped protective plates 1202, so as to prevent part of the welding slag from falling onto the surface of the bridge body 101 and causing damage to the bridge body 101 during the welding of the retainer 102 and the bridge body 101.

[0046] Preferably, the flexible support assembly includes groups of mounting grooves 601 provided on the clamping plate 403, airbags 602 are installed inside each group of mounting grooves 601, and an inflation assembly for inflating the airbags 602 is provided between the transmission plate 402 and the clamping plate 403;

[0047] It should be noted here that: after driving each group of fan-shaped protective plates 1202 to abut against each other, the interior of the airbag 602 is inflated through transmission, and after inflation, the airbag 602 is expanded and abutted against the outside of the bridge body 101 through the pressure inside the airbag 602. The airbag 602 on each group of splints 403 abuts against the four sides of the bridge body 101, and the bridge body 101 is flexibly supported and limited. While ensuring the support and limitation of the bridge body 101, the flexible support is used to avoid damage to the bridge body 101 during the support process, which further facilitates the welding and installation operations of the retaining body 102 and the bridge body 101 during the preparation of the bridge frame.

[0048] Preferably, the telescopic assembly is fixed to a plurality of first sleeves 501 on the transmission plate 402, a first slide bar 502 is slidably connected to the first sleeve 501, one end of the first slide bar 502 is fixed to the clamping plate 403, a spring 503 is sleeved on the outer side of the first sleeve 501, and both ends of the spring 503 are respectively connected to the transmission plate 402 and the clamping plate 403;

[0049] It should be noted that: the first sleeve 501 and the first slide bar 502 facilitate the telescopic connection between the transmission plate 402 and the clamping plate 403, and the groups of springs 503 facilitate the resetting movement of the clamping plate 403 and the transmission plate 402 after the telescopic movement.

[0050] Preferably, the inflation assembly includes an air cylinder 701 fixed to one side of the clamping plate 403, one end of the air cylinder 701 is connected to the inside of the air bag 602, the other end of the air cylinder 701 is slidably connected to a piston rod 702, and one end of the piston rod 702 is fixed to the transmission plate 402;

[0051] It should be noted here that: through transmission, the transmission plate 402 is forced to contract toward the clamping plate 403, and during the movement, the piston rod 702 is pushed to move toward the inside of the air cylinder 701. During the movement, part of the gas inside the air cylinder 701 is squeezed and transported to the inside of the airbag 602 to inflate the inside of the airbag 602.

[0052] Preferably, the protection assembly includes an L-shaped frame 1201 fixed to the upper end of the clamping plate 403, a fan-shaped protection plate 1202 is fixed to one end of the L-shaped frame 1201, and an arc-shaped opening 1203 is opened on the fan-shaped protection plate 1202;

[0053] It should be noted here that: through the transmission component and the guide component, each group of transmission plates 402 after being subjected to force can move towards the center and gather together. During the movement of the transmission plate 402, through the connection and transmission action of the telescopic component, each group of clamping plates 403 and the fan-shaped protective plates 1202 on the L-shaped frame 1201 are driven to move towards the center and gather together. During the movement, the opposite sides of each group of fan-shaped protective plates 1202 are offset against each other. Through the offset of each group of fan-shaped protective plates 1202, the bridge body 101 below is shielded and protected to prevent part of the welding slag from falling onto the surface of the bridge body 101 and causing damage to the bridge body 101 during the welding process of the retaining body 102 and the bridge body 101. After the offset, each group of fan-shaped protective plates 1202 passes through each group of arc-shaped openings 1203, so that the auxiliary retaining body 102 can be normally welded and installed with the bridge body 101.

[0054] Preferably, the guide assembly includes a plurality of groups of second sleeves 801 fixed on the support frame 401, each group of second sleeves 801 is slidably connected to a second slide bar 802, and one end of the second slide bar 802 is fixed to the transmission plate 402; the transmission assembly includes a driving disk 901 arranged at the upper end of the operating table 2, and the operating table 2 is provided with a connecting assembly for assisting the driving disk 901 in rotational connection, and the upper end of the driving disk 901 is provided with a plurality of groups of inclined grooves 902, and each group of transmission plates 402 is fixed with a driving pin 903, and one end of each group of driving pins 903 is respectively slidably connected to each group of inclined grooves 902, and the support frame 401 is provided with a rotating assembly for rotating the driving disk 901;

[0055] It should be noted here that: after the bridge body 101 is placed, the driving disk 901 is rotated by the rotating assembly. During the rotation of the driving disk 901, each group of inclined grooves 902 interacts with each group of transmission pins 903, so that each group of transmission plates 402 are driven to move under force. During the movement of each group of transmission plates 402, the sliding guiding effect of each group of second sleeves 801 and second slide rods 802 causes each group of transmission plates 402 to move toward the center after being subjected to force. During the movement of the transmission plates 402, the connecting transmission effect of the telescopic assembly drives each group of clamping plates 403 and the fan-shaped protective plates 1202 on the L-shaped frame 1201 to move toward the center under force.

[0056] Preferably, the rotating assembly includes a fixing frame 1002 fixed to one side of the supporting frame 401, a gear ring 1001 is sleeved and fixed on the outer side of the driving disk 901, a mounting shaft 1003 is rotatably connected to the fixing frame 1002, a gear 1004 is fixed to one end of the mounting shaft 1003, the gear 1004 and the gear ring 1001 are meshed with each other, and a driving motor 1005 for driving the mounting shaft 1003 is installed on the fixing frame 1002;

[0057] It should be noted here that: the driving motor 1005 drives the installation shaft 1003 to rotate, and during the rotation of the installation shaft 1003, the gear 1004 is driven to rotate. During the rotation of the gear 1004, the mutual meshing transmission between the gear 1004 and the ring gear 1001 causes the driving disk 901 to be forced to move.

[0058] Preferably, the connecting assembly includes an annular groove 1101 opened at the upper end of the operating table 2, and an annular plate 1102 is rotatably connected inside the annular groove 1101, and the annular plate 1102 is fixed to the lower end of the driving disk 901;

[0059] It should be noted here that the annular groove 1101 and the annular plate 1102 facilitate the rotation operation of the auxiliary driving disk 901 after being subjected to force.

[0060] In this scheme: A method for preparing a dental implant bridge comprises the following steps:

[0061] During the preparation of the dental implant bridge, the retainer 102 is fixed to the bridge body 101 by welding. During the welding process, the bridge body 101 is centered by using an auxiliary device. During the centering process, the bridge body 101 is first placed on the support pad 3 of the operating table 2, and the bridge body 101 is auxiliary supported by the support pad 3.

[0062] After the bridge body 101 is placed, the driving disk 901 is rotated by the rotating assembly. During the rotation of the driving disk 901, each group of the inclined grooves 902 interacts with each group of the transmission pins 903, so that each group of the transmission plates 402 are driven to move under force. During the movement of each group of the transmission plates 402, each group of the second sleeves 801 and the second slide rods 802 slide and guide, so that each group of the transmission plates 402 after being subjected to force move toward the center. During the movement of the transmission plates 402, each group of the clamping plates 403 and the fan-shaped protective plates 1202 on the L-shaped frame 1201 are driven to move toward the center through the connection and transmission action of the telescopic assembly. During the movement, the opposite sides of each group of the fan-shaped protective plates 1202 are offset against each other (see FIG. 2 ). Figure 8 The groups of fan-shaped protective plates 1202 are offset against each other to shield and protect the bridge body 101 below, so as to prevent some welding slag from falling onto the surface of the bridge body 101 and causing damage to the bridge body 101 during the welding process of the retainer 102 and the bridge body 101. The groups of fan-shaped protective plates 1202 offset against each other pass through the groups of arc-shaped openings 1203, so that the auxiliary retainer 102 can be normally welded and installed with the bridge body 101.

[0063] After driving each group of fan-shaped protection plates 1202 to abut against each other, the fan-shaped protection plates 1202 abut against the L-shaped frame 1201 and the clamping plate 403, and the transmission plate 402 continues to move, so that the transmission plate 402 is forced to move toward the clamping plate 403 to contract. During the movement, the piston rod 702 is pushed to move toward the inside of the air cylinder 701. During the movement, part of the gas in the air cylinder 701 is squeezed and transported to the inside of the airbag 602 to inflate the inside of the airbag 602, and the airbag 602 After inflation, the pressure inside the airbag 602 causes the airbag 602 to expand and abut against the outer side of the bridge body 101. The airbags 602 on each group of splints 403 abut against the four sides of the bridge body 101, respectively, to flexibly support and limit the bridge body 101. While ensuring the support and limitation of the bridge body 101, the flexible support prevents the bridge body 101 from being damaged during the support process, further facilitating the welding and installation operations of the retainer 102 and the bridge body 101 during the preparation of the bridge frame.

[0064] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0065] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dental implant bridge, comprising a bridge body (101) and a retainer (102), wherein a positioning hole (103) for assisting the retainer (102) in mounting and connecting is provided at the lower end of the bridge body (101); Also provided is a method for preparing a dental implant bridge, comprising the following steps: S1: Abutment tooth preparation: refer to tooth defect restoration to ensure that the abutment tooth axis is parallel and without undercuts to enhance retention; S2: Impression and casting: Take accurate and complete impressions and cast them into models to provide a basis for subsequent production; S3: Retainer fabrication and trial fit: Fabricate the retainer and try it on the abutment to ensure proper fit and marginal extension; S4: Metal bridge fabrication: Fabricate a metal bridge with a certain mechanical strength to withstand the occlusal force; S5: bridge frame formation: using auxiliary equipment to fix the bridge body (101) and connecting and fixing the fixing body (102) and the positioning hole (103) by welding to form a bridge frame; The auxiliary equipment comprises an operating table (2), a support pad (3) for supporting the bridge body (101) being fixed at the center of the upper end of the operating table (2), a plurality of groups of centering clamping components for centering the bridge body (101) being arranged on the operating table (2), and each group of centering clamping components is arranged in a ring array on the operating table (2); The center clamping assembly comprises a support frame (401), a transmission plate (402) and a clamping plate (403). The support frame (401), the transmission plate (402) and the clamping plate (403) are all located above the operating table (2) and are arranged in sequence from the outside to the inside. The support frame (401) is fixed to the upper end of the operating table (2). A guide assembly for assisting the movement of the transmission plate (402) is arranged between the support frame (401) and the transmission plate (402). A telescopic assembly for assisting the telescopic connection is arranged between the clamping plate (403) and the transmission plate (402). A transmission assembly for transmitting each group of transmission plates (402) is arranged on the operating table (2). Each group of the clamping plates (403) is provided with a flexible support assembly for flexibly clamping the bridge body (101) and a protection assembly for shielding and protecting the bridge body (101) after supporting and clamping the bridge body (101).

2. The method for preparing a dental implant bridge according to claim 1, characterized in that: The flexible support component comprises groups of mounting grooves (601) provided on the clamping plate (403), airbags (602) being installed inside each group of the mounting grooves (601), and an inflation component for inflating the airbags (602) is provided between the transmission plate (402) and the clamping plate (403).

3. The method for preparing a dental implant bridge according to claim 2, characterized in that: The telescopic assembly is fixed to a plurality of first sleeves (501) on a transmission plate (402), a first slide bar (502) is slidably connected to the first sleeve (501), one end of the first slide bar (502) is fixed to a clamping plate (403), a spring (503) is sleeved on the outer side of the first sleeve (501), and two ends of the spring (503) are respectively connected to the transmission plate (402) and the clamping plate (403).

4. The method for preparing a dental implant bridge according to claim 2, characterized in that: The inflation assembly comprises an air cylinder (701) fixed on one side of the clamping plate (403), one end of the air cylinder (701) is connected to the interior of the air bag (602), the other end of the air cylinder (701) is slidably connected to a piston rod (702), and one end of the piston rod (702) is fixed to the transmission plate (402).

5. The method for preparing a dental implant bridge according to claim 1, characterized in that: The protection assembly comprises an L-shaped frame (1201) fixed to the upper end of the clamping plate (403), a fan-shaped protection plate (1202) is fixed to one end of the L-shaped frame (1201), and an arc-shaped opening (1203) is provided on the fan-shaped protection plate (1202).

6. The method for preparing a dental implant bridge according to claim 1, characterized in that: The guide assembly comprises a plurality of groups of second sleeves (801) fixed on the support frame (401), each group of the second sleeves (801) is slidably connected to a second sliding rod (802), and one end of the second sliding rod (802) is fixed to the transmission plate (402).

7. The method for preparing a dental implant bridge according to claim 1, characterized in that: The transmission assembly comprises a driving disk (901) arranged at the upper end of the operating table (2); a connecting assembly for assisting the driving disk (901) in rotational connection is arranged on the operating table (2); a plurality of groups of inclined grooves (902) are provided at the upper end of the driving disk (901); a driving pin (903) is fixed on each group of the transmission plates (402); one end of each group of the driving pins (903) is slidably connected to each group of inclined grooves (902); and a rotating assembly for rotating the driving disk (901) is arranged on the support frame (401).

8. The method for preparing a dental implant bridge according to claim 7, characterized in that: The rotating assembly comprises a fixing frame (1002) fixed to one side of the supporting frame (401); a gear ring (1001) is sleeved and fixed on the outer side of the driving disk (901); a mounting shaft (1003) is rotatably connected to the fixing frame (1002); a gear (1004) is fixed to one end of the mounting shaft (1003); the gear (1004) and the gear ring (1001) are meshed with each other; and a driving motor (1005) for driving the mounting shaft (1003) is installed on the fixing frame (1002).

9. The method for preparing a dental implant bridge according to claim 8, characterized in that: The connection assembly comprises an annular groove (1101) formed at the upper end of the operating table (2), an annular plate (1102) being rotatably connected inside the annular groove (1101), and the annular plate (1102) is fixed to the lower end of the driving disk (901).

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