Composite abutments for dental implant restorations

Abstract

The present invention provides a composite base for dental implant restoration, including a base; further comprising: an upper body, the upper body is used to install a denture, and a fitting surface for fitting the bottom of the denture is arranged on the upper body; the upper body is placed on the top of the base, a round plug hole is opened at the center of the bottom of the upper body, a round socket is fixedly installed at the center of the top of the base, the round plug hole and the round socket are matched and connected, and the upper body is adjusted in height by sliding between the round plug hole and the round socket; a self-positioning mechanism, the self-positioning mechanism is placed between the round plug hole and the round socket; a support plug ring, the support plug ring is placed between the bottom surface of the upper body and the top surface of the base. Through the design of the adjustable height of the upper body at the top of the entire composite base, when the base installation position is too low, the upper body can be increased to compensate for the height, thereby avoiding the problem of inconvenience in the subsequent installation of the denture crown; and through the design of the support plug ring, the distance between the upper body and the base can be blocked to provide blocking support.

Description

Technical Field

[0001] The invention relates to the field of dental implants, in particular to a composite base for dental implant restoration. Background Art

[0002] The composite abutment in dental implant restoration is an important component in the implant restoration process, which connects the implant and the upper denture.

[0003] At present, the traditional composite abutment, such as the existing patent document "CN216365344U A composite abutment for dental implant restoration", includes a connecting shaft and a retainer, the top of the connecting shaft is fixedly installed with a first coating, and the bottom of the connecting shaft is installed with a rotating sleeve, which is connected to the denture crown through the connecting shaft on it; the top of the composite abutment in the above-mentioned prior art is used to connect with the denture crown. The structural position is fixed. Since the gum structure of each patient is different, and different doctors have different implant implantation habits, the implant implantation depth will be different, and the implant may be installed too low. After the composite abutment is installed, the position of the abutment top for installing the denture is too low, resulting in inconvenience in installation. Summary of the invention

[0004] The present invention provides a composite abutment for dental implant restoration in order to solve the technical problem of how to install the denture inconveniently due to the abutment being installed too low.

[0005] The present invention solves the above technical problems through the following technical solutions:

[0006] The present invention provides a composite base for dental implant restoration, comprising a base; further comprising: an upper base, the upper base is used to install a denture, and a fitting surface for fitting the bottom of the denture is arranged on the upper base; the upper base is placed on the top of the base, a round plug hole is opened at the center of the bottom of the upper base, a round socket is fixedly installed at the center of the top of the base, the round plug hole is matched with the round socket, and the height of the upper base is adjusted by sliding between the round plug hole and the round socket; a self-positioning mechanism, the self-positioning mechanism is placed between the round plug hole and the round socket; after the height of the upper base is adjusted, the upper base is automatically positioned by the self-positioning mechanism; a support plug ring, the support plug ring is placed between the bottom surface of the upper base and the top surface of the base to seal the gap between the upper base and the base after the height is adjusted.

[0007] In the present technical solution, the height of the upper body on the top of the entire composite abutment is designed to be adjustable. If the installation position of the abutment is too low, the height can be compensated by increasing the height of the upper body, thereby avoiding the problem of inconvenience in the subsequent installation of the denture crown. The support ring is designed to seal the distance between the upper body and the base for sealing support, so that the downward pressure on the upper body can be applied to the base through the support ring, reducing the pressure of the self-positioning mechanism, and achieving closure of the connection between the upper body and the base through sealing.

[0008] Preferably, there are a plurality of self-positioning mechanisms, and the plurality of self-positioning mechanisms are arranged in a circular array on the outer cylindrical surface of the round socket.

[0009] In this technical solution, multiple self-positioning mechanisms work together to ensure an improved positioning effect.

[0010] Preferably, the self-positioning mechanism includes a positioning plug-in and a height adjustment slot; the height adjustment slot is composed of a vertical slot and a plurality of circular arc short slots, and the vertical slot and the circular arc short slots are both opened on the outer cylindrical surface of the round socket; the vertical slot is arranged along the height direction of the round socket, and the top end surface of the vertical slot is flush with the top surface of the round socket; a plurality of the circular arc short slots are evenly spaced along the length direction of the vertical slot, and one end of the circular arc short slot is connected to the vertical slot, and the other end of the circular arc short slot is provided with a positioning socket for inserting the positioning plug-in along the radial direction of the round socket; the positioning plug-in is installed at the bottom end of the circular socket, and the positioning plug-in is arranged along the radial direction of the circular socket.

[0011] In the technical solution, the positioning after height adjustment is achieved by inserting the positioning plug into the positioning socket.

[0012] Preferably, a first circular hole is opened at the top center of the round socket, and the first circular hole extends to the inside of the base, and one end of the positioning socket away from the arc short groove is connected to the first circular hole.

[0013] In the technical solution, through the first circular hole and the connection between the first circular hole and the positioning socket, a push rod can be inserted through the top of the circular socket and inserted into the positioning socket to push out the positioning plug inserted into the positioning socket.

[0014] Preferably, the positioning plug-in includes a spring and a movable rod; a guide hole arranged along the radial direction of the circular hole is opened on the wall of the circular hole, a spring is arranged in the guide hole, the movable rod is matched and connected with the guide hole, and one end of the movable rod located in the guide hole is fixedly connected to one end of the spring, and the other end of the spring is fixedly connected to the end face of the guide hole.

[0015] In the technical solution, through the compression elastic force of the spring, after the movable plug rod is aligned with the positioning plug hole, the movable plug rod is automatically pushed into the positioning plug hole to achieve self-positioning.

[0016] Preferably, the end of the movable insertion rod located outside the guide hole is spherical; and the top end of the vertical groove is provided with an extrusion inclined surface for extruding the spherical end of the movable insertion rod.

[0017] In the technical solution, the extrusion slope is used to extrude the movable rod so that the movable rod moves into the guide hole. When the movable rod is placed in the height adjustment groove, the spring is in a compressed state to provide force for the movable rod to be inserted into the positioning hole.

[0018] Preferably, the positioning plug-in includes a movable plug rod; a guide hole arranged along the radial direction of the circular socket is opened on the wall of the circular socket, the movable plug rod is cooperatively connected with the guide hole, and the movable plug rod is an iron rod; a magnetic ring is fixedly embedded in the end of the positioning socket away from the circular arc short groove, the magnetic ring is a permanent magnet, and a center hole is arranged in the middle of the magnetic ring.

[0019] In the technical solution, the movable rod is an iron rod, and the positioning socket is provided with a magnetic ring. After the movable rod is aligned with the positioning socket, the movable rod can be inserted into the positioning socket through magnetic attraction.

[0020] Preferably, an upper hole body is opened at the top center of the upper platform, and the upper hole body is connected with the circular socket; it also includes a push rod for inserting into the positioning socket; the push rod is an L-shaped rod, the push rod passes through the upper hole body and the circular socket, and the push rod extends into the first circular hole; a socket is fixedly connected to the top hole wall of the upper hole body, a slot is provided in the socket, an entrance slot is provided on one side of the socket, and the slot width of the entrance slot is smaller than the slot diameter of the slot.

[0021] In the technical solution, the push rod is used to push the movable rod out of the positioning socket. After being pushed out, the push rod is clamped and positioned by the clamping seat to keep the movable rod in the pushed-out state, thereby achieving the releasable positioning effect.

[0022] Preferably, the supporting plug ring comprises a circular ring body and two sealing gaskets; the two sealing gaskets are respectively fixedly mounted on the top and bottom surfaces of the circular ring body, a second circular ring groove is provided on the bottom surface of the upper platform, a first circular ring groove is provided on the top surface of the base, the first circular ring groove and the second circular ring groove are aligned, the two sealing gaskets are respectively fitted with the bottom surface of the upper platform body and the top surface of the base, and the two sealing gaskets are respectively embedded in the first circular ring groove and the second circular ring groove.

[0023] In the technical solution, the support plug ring is used to seal the gap between the support upper platform and the base after the height is adjusted.

[0024] Preferably, a positioning bottom column is fixedly connected at the bottom center of the base, and grooves are provided on both sides of the positioning bottom column; a second circular hole is provided at the bottom center of the positioning bottom column, the second circular hole is connected to the first circular hole, and the aperture of the second circular hole is smaller than the aperture of the first circular hole; it also includes a central bolt, which is composed of a round rod, a pressure head and a stud, the bottom end of the round rod is fixedly connected to the top end of the stud, and the diameters of the round rod and the stud are equal, the top end of the round rod is fixedly connected to the bottom surface of the pressure head, the round rod, the pressure head and the stud are coaxially arranged, the pressure head is matched with the first circular hole, and a hexagonal hole is provided in the middle of the top surface of the pressure head, and the round rod is matched with the second circular hole.

[0025] In this technical solution, the base can be fixed on the implant through a central bolt.

[0026] On the basis of being in accordance with the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present invention.

[0027] The positive and progressive effects of the present invention are:

[0028] The composite abutment for dental implant restoration proposed above is designed by separating the top of the entire composite abutment to form an upper platform. The height position of the upper platform is adjustable by setting a round socket and a round socket and sliding between the round socket and the round socket. A self-positioning mechanism is also provided, which can be positioned after the height adjustment to maintain the height adjustment position. When the installation position of the entire composite abutment is too low, the upper platform can be increased by adjusting the height of the upper platform to compensate for the depth, thereby solving the problem that the position of the top of the abutment for installing the denture is too low. A support plug ring is provided, and is placed between the upper platform and the base. After the denture crown is installed on the upper platform, the denture crown is used for chewing. The downward pressure on the upper platform can act on the base through the support plug ring to share the pressure of the self-positioning mechanism, thereby reducing the downward pressure on the self-positioning mechanism. The support plug ring is further used to seal and fill between the upper platform and the base, thereby providing a sealing function to ensure the sealing of the connection between the upper platform and the base, prevent oral foreign matter from entering the connection between the upper platform and the base, and improve the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall external structure of the present invention.

[0030] Figure 2 It is a schematic structural diagram of the bottom of the base of the present invention.

[0031] Figure 3 It is a schematic diagram of the structure of the present invention when the base and the upper platform are disassembled.

[0032] Figure 4It is a schematic diagram of the structure of the positioning plug-in distributed in the bottom end of the round socket of the present invention.

[0033] Figure 5 It is a front view of the round socket of the present invention.

[0034] Figure 6 It is a schematic diagram of the cross-sectional structure of the base and the upper platform of the present invention when they are not raised.

[0035] Figure 7 For the present invention Figure 6 Schematic diagram of the structure with the A part in the middle enlarged.

[0036] Figure 8 It is a schematic diagram of the cross-sectional structure of the base and the upper platform after height adjustment of the present invention.

[0037] Fig. 9 For the present invention Figure 8 Schematic diagram of the structure with the B part enlarged.

[0038] Fig.10 For the present invention Figure 8 Schematic diagram of the structure enlarged in the middle C part.

[0039] Fig.11 It is a schematic diagram of the structure between the positioning plug-in and the top of the vertical slot when the base and the upper platform are separated in the first embodiment of the present invention.

[0040] Fig.12 It is a schematic diagram of the structure of the positioning plug-in and the vertical slot in the second embodiment of the present invention.

[0041] Fig.13 It is a structural schematic diagram of the positioning plug-in for positioning the upper platform in the second embodiment of the present invention.

[0042] Description of Reference Numerals

[0043] 1. Base; 101. Positioning base column; 1011. Missing groove; 102. Round socket; 1021. Height adjustment groove; 10211. Vertical groove; 10212. Short arc groove; 1022. Extrusion slope; 1023. Positioning socket; 103. First round hole; 104. Second round hole; 105. First annular groove;

[0044] 2. upper platform; 201. upper hole body; 202. fitting surface; 203. second annular groove; 204. guide hole; 205. round plug hole;

[0045] 3. Central bolt; 301. Round rod; 302. Press head; 303. Stud;

[0046] 4. Positioning plug-in; 401. Spring; 402. Movable plug-in rod;

[0047] 5. Support plug ring; 501. Ring body; 502. Sealing gasket;

[0048] 6. Card holder; 601. Entrance slot; 602. Card slot;

[0049] 7. Magnetic ring; 701. Middle hole;

[0050] a. Push rod. DETAILED DESCRIPTION

[0051] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0052] like Figure 1-13 As shown, a composite base for dental implant restoration comprises a base 1; and also comprises: an upper body 2, the upper body 2 being used for mounting a denture, the upper body 2 being provided with a fitting surface 202 for fitting the bottom of the denture; the upper body 2 being placed on the top of the base 1, a round plug hole 205 being provided at the bottom center of the upper body 2, a round socket 102 being fixedly installed at the top center of the base 1, the round plug hole 205 being matched and connected with the round socket 102, the height of the upper body 2 being adjusted by sliding between the round plug hole 205 and the round socket 102; a self-positioning mechanism, the self-positioning mechanism being placed between the round plug hole 205 and the round socket 102; after the height of the upper body 2 is adjusted, the upper body 2 is automatically positioned by the self-positioning mechanism; a support plug ring 5, the support plug ring 5 being placed between the bottom surface of the upper body 2 and the top surface of the base 1 to seal the gap between the upper body 2 and the base 1 after the height is adjusted.

[0053] like Figure 1 , Figure 2 as well as Figure 6 As shown in the figure, as a specific technical solution, a positioning bottom column 101 is fixedly connected at the bottom center of the base 1, and both sides of the positioning bottom column 101 are provided with notches 1011; a second circular hole 104 is provided at the bottom center of the positioning bottom column 101, the second circular hole 104 is connected to the first circular hole 103, and the aperture of the second circular hole 104 is smaller than the aperture of the first circular hole 103; and a central bolt 3 is also included, the central bolt 3 is composed of a round rod 301, a pressure head 30 2 and a stud 303, the bottom end of the round rod 301 is fixedly connected to the top end of the stud 303, and the diameters of the round rod 301 and the stud 303 are equal, the top end of the round rod 301 is fixedly connected to the bottom surface of the pressure head 302, the round rod 301, the pressure head 302 and the stud 303 are coaxially arranged, the pressure head 302 is matched with the first circular hole 103, and a hexagonal hole is arranged in the middle of the top surface of the pressure head 302, and the round rod 301 is matched with the second circular hole 104.

[0054] After the implant is installed, the base 1 is inserted into the matching hole at the top of the implant through the positioning bottom column 101 at the bottom. The positioning bottom column 101 is designed to be non-circular due to the grooves 1011 on both sides, and plays a positioning role after insertion. Then, the pressure head 302 on the central bolt 3 is turned to screw the stud 303 at the bottom of the central screw into the matching screw hole in the implant. After screwing in, the pressure head 302 is pressed tightly on the bottom end surface of the first circular hole 103 to fix the entire base 1 to the implant.

[0055] like Figure 8 As shown, the support plug ring 5 includes a circular ring body 501 and two sealing gaskets 502; the two sealing gaskets 502 are respectively fixedly installed on the top and bottom surfaces of the circular ring body 501, a second circular ring groove 203 is opened on the bottom surface of the upper platform 2, and a first circular ring groove 105 is opened on the top surface of the base 1, the first circular ring groove 105 and the second circular ring groove 203 are aligned, the two sealing gaskets 502 are respectively fitted with the bottom surface of the upper platform 2 and the top surface of the base 1, and the two sealing gaskets 502 are respectively embedded in the first circular ring groove 105 and the second circular ring groove 203.

[0056] Among them, there are several support plug rings 5 ​​in the whole composite base, and the height of the annular body 501 in each support plug ring 5 is different, so that the height of each support plug ring 5 is different, which is used to adapt to the support requirements of the upper platform 2 when it is adjusted to different heights. For example, the support plug ring 5 with the lowest height is used to adapt to the support when the upper platform 2 is adjusted to the lowest height state. At this time, the positioning plug 4 passes through the lowest arc short groove 10212 of the vertical groove 10211 and is plugged into the positioning socket 1023 on it; the support plug ring 5 with the second lowest height is used to adapt to the support when the upper platform 2 is adjusted to the second lowest height state. At this time, the positioning plug 4 passes through the second arc short groove 10212 from the bottom to the top of the vertical groove 10211 and is plugged into the positioning socket 1023 on it; and so on, several support plug rings 5 ​​are respectively adapted to the upper platform 2 when it is adjusted to different heights.

[0057] like Figure 3-9 as well as Fig.11As shown, as a specific technical solution, the number of the self-positioning mechanisms is several, and the several self-positioning mechanisms are arranged in a circular array on the outer cylindrical surface of the round socket 102; the self-positioning mechanism includes a positioning plug-in 4 and a height adjustment groove 1021; the height adjustment groove 1021 is composed of a vertical groove 10211 and a plurality of arc short grooves 10212, and the vertical groove 10211 and the arc short groove 10212 are both opened on the outer cylindrical surface of the round socket 102; the vertical groove 10211 is arranged along the height of the round socket 102 direction, and the top end surface of the vertical groove 10211 is flush with the top surface of the round socket 102; a plurality of the arc short grooves 10212 are evenly spaced along the length direction of the vertical groove 10211, and one end of the arc short groove 10212 is connected to the vertical groove 10211, and the other end of the arc short groove 10212 is provided with a positioning hole 1023 for inserting the positioning plug-in 4 along the radial direction of the round socket 102; the positioning plug-in 4 is installed to the bottom end of the round hole 205, and the positioning plug-in 4 is arranged radially along the round hole 205.

[0058] After the base 1 is installed on the implant, the initial state between the base 1 and the upper platform 2 is as follows: Figure 6 As shown, the upper platform 2 is in the lowest position, and the positioning plug-in 4 is located at the bottom end of the vertical slot 10211. By pulling up the upper platform 2, the round socket 102 and the round socket 205 slide relative to each other, and the positioning plug-in 4 slides in the vertical slot 10211 to adjust the height of the upper platform 2 to a suitable position. The distance between the upper platform 2 and the base 1 is measured by visual inspection with a measuring ruler, such as a ruler. Then, the upper platform 2 is lifted up to make the positioning plug-in 4 leave the top end of the vertical slot 10211, and the removal of the upper platform 2 is completed. Next, a support plug ring 5 close to the measured value is selected and sleeved outside the round socket 102, wherein the sealing gasket 502 at the bottom of the support plug ring 5 is engaged with the first circular groove 105, and then the circular plug hole 205 of the upper platform 2 is reconnected with the round socket 102. During the connection process, several positioning plugs 4 are aligned with the tops of several vertical grooves 10211, so that after the circular plug hole 205 is connected with the round socket 102, several positioning plugs 4 are respectively inserted into several vertical grooves 10211, and the bottom surface of the upper platform 2 is in contact with the top surface of the support plug ring 5, and the support The sealing gasket 502 on the top of the plug ring 5 is engaged with the second circular ring groove 203. After fitting, the upper platform 2 is pressed down to compress the sealing gasket 502. At the same time, the positioning plug-in 4 is aligned with the arc short groove 10212 adapted to the supporting plug ring 5. The upper platform 2 is rotated to make the positioning plug-in 4 enter the arc short groove 10212 from the vertical groove 10211 until the positioning plug-in 4 moves to the end of the arc short groove 10212 away from the vertical groove 10211. The positioning plug-in 4 is automatically inserted into the positioning socket 1023 to provide positioning for the upper platform 2 after it is raised.

[0059] It should be noted that the distance between adjacent arc short grooves 10212 on the vertical groove 10211 is preferably 1-2MM.

[0060] In the above, when selecting the supporting plug ring 5, it is preferred that the supporting plug ring 5 has a height slightly higher than the measured value to ensure the installation height of the subsequent denture crown. The denture crown is installed on the upper platform 2, which is relatively high. By grinding the top surface, it can be fine-tuned to meet the usage requirements.

[0061] like Figure 8 As shown, as a specific technical solution, a first circular hole 103 is opened at the top center of the round socket 102, and the first circular hole 103 extends into the inside of the base 1, and the end of the positioning hole 1023 away from the arc short groove 10212 is connected to the first circular hole 103.

[0062] An upper hole body 201 is opened at the top center of the upper platform 2, and the upper hole body 201 is connected to the circular socket 205; it also includes a push rod a for inserting into the positioning socket 1023; the push rod a is an L-shaped rod, and the push rod a passes through the upper hole body 201 and the circular socket 205, and the push rod a extends into the first circular hole 103; the top hole wall of the upper hole body 201 is fixedly connected with a socket 6, and a slot 602 is arranged in the socket 6, and an entrance groove 601 is arranged on one side of the socket 6, and the groove width of the entrance groove 601 is smaller than the groove diameter of the groove 602.

[0063] After the upper platform 2 is positioned and installed on the base 1, if it is found that the upper platform 2 is not installed properly, the upper platform 2 can be disassembled to readjust the installation height; Figure 8 As shown, through an external tool, that is, the push rod a mentioned above, the push rod a is inserted from the upper hole body 201 and enters into the first circular hole 103, and then the push rod a is moved to be inserted from the positioning socket 1023, and the positioning plug-in 4 is pushed out from the positioning socket 1023. At the same time, the push rod a enters through the entrance groove 601 and is engaged in the card groove 602 to maintain the pushed-out state of the positioning plug-in 4. By using a plurality of push rods a, the positioning of all the positioning plug-ins 4 can be released; after the positioning is released, the upper platform 2 can be rotated to make the positioning plug-in 4 enter the vertical groove 10211 from the arc short groove 10212, and then all the push rods a can be removed.

[0064] Through the above design, the error tolerance of the height adjustment and positioning of the upper platform 2 is improved, and the height adjustment and positioning can be performed again after the height adjustment is inappropriate.

[0065] like Fig.11As shown, as an embodiment of the present invention, the positioning plug-in 4 includes a spring 401 and a movable plug rod 402; a guide hole 204 arranged radially along the circular plug hole 205 is opened on the wall of the circular plug hole 205, a spring 401 is arranged in the guide hole 204, the movable plug rod 402 is matched and connected with the guide hole 204, and one end of the movable plug rod 402 located in the guide hole 204 is fixedly connected to one end of the spring 401, and the other end of the spring 401 is fixedly connected to the end face of the guide hole 204.

[0066] The end of the movable rod 402 outside the guide hole 204 is spherical; the top of the vertical groove 10211 is provided with an extrusion slope 1022 for extruding the spherical end of the movable rod 402.

[0067] The positioning plug-in 4 is located in the vertical groove 10211 and the arc short groove 10212, and the spring 401 is in a compressed state, wherein the depths of the vertical groove 10211 and the arc short groove 10212 are equal, and the positioning plug-in 4 slides in the vertical groove 10211 and the arc short groove 10212, and the compression amount of the spring 401 remains unchanged; when positioning, the movable rod 402 is aligned with the positioning socket 1023, and the elastic force of the spring 401 can make the movable rod 402 inserted into the positioning socket 1023.

[0068] After the upper platform 2 is removed from the base 1, Figure 3-4 As shown, the movable insertion rod 402 loses the obstruction of the vertical groove 10211 and the arc short groove 10212, the spring 401 recovers from the compressed state, and the length of the movable insertion rod 402 extending from the guide hole 204 increases.

[0069] When the round jack 205 and the round socket 102 are re-matched and connected, Fig.11 As shown, the round plug hole 205 is aligned with the round socket 102, and the movable plug rod 402 is aligned with the vertical groove 10211, wherein the top of the vertical groove 10211 is provided with an extrusion slope 1022, so that a large opening is formed at the top of the vertical groove 10211 for the movable plug rod 402 to enter when it is extended from the guide hole 204. During the insertion process of the movable plug rod 402, the top of the vertical groove 10211 gradually decreases from top to bottom to squeeze the movable plug rod 402. The movable plug rod 402 moves to the intersection of the vertical groove 10211 and the opening. The opening here is equal to the depth of the vertical groove 10211, so that the movable plug rod 402 is received in the guide hole 204, and only the part inserted in the vertical groove 10211 is retained, and the spring 401 is compressed at the same time.

[0070] like Figure 12-13As shown, as another embodiment of the present invention, the positioning plug-in 4 includes a movable plug rod 402; a guide hole 204 arranged radially along the circular plug hole 205 is opened on the wall of the circular plug hole 205, and the movable plug rod 402 is matched and connected with the guide hole 204, and the movable plug rod 402 is an iron rod; a magnetic ring 7 is fixedly embedded in one end of the positioning plug hole 1023 away from the arc short groove 10212, and the magnetic ring 7 is a permanent magnet, and a middle hole 701 is provided in the middle of the magnetic ring 7.

[0071] The movable plug rod 402 of the positioning plug 4 is an iron rod, and the iron rod is directly inserted into the guide hole 204 without any other form of connection. The above design provides convenience for the processing and assembly of the positioning plug 4. It is only necessary to open the guide hole 204 at the round plug hole 205, and then insert the movable plug rod 402 into the guide hole 204.

[0072] like Fig.12 As shown, at this time, the movable rod 402 is located in the vertical groove 10211. After the movable rod 402 is aligned with the positioning socket 1023, the movable rod 402 can be magnetically attracted by the magnetic force of the magnetic ring 7, and the movable rod 402 is automatically inserted into the positioning socket 1023.

[0073] The design of the middle hole 701 in the middle of the magnetic ring 7 is used for inserting the rod when releasing the positioning.

[0074] The present invention is not limited to the above-mentioned embodiments. Any changes in shape or structure are within the protection scope of the present invention. The protection scope of the present invention is defined by the attached claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications are within the protection scope of the present invention.

Claims

1. A composite abutment for dental implant restoration, comprising a base (1); characterized in that: Also includes: An upper platform (2), the upper platform (2) being used for mounting a denture, the upper platform (2) being provided with a fitting surface (202) for fitting the bottom of the denture; the upper platform (2) being placed on the top of the base (1), a round plug hole (205) being provided at the center of the bottom of the upper platform (2), a round socket (102) being fixedly installed at the center of the top of the base (1), the round plug hole (205) being matched and connected with the round socket (102), and the height of the upper platform (2) being adjusted by sliding between the round plug hole (205) and the round socket (102); A self-positioning mechanism, the self-positioning mechanism being disposed between the round plug hole (205) and the round socket (102); after the height of the upper platform (2) is adjusted, the upper platform (2) is automatically positioned by the self-positioning mechanism; A support plug ring (5), the support plug ring (5) being placed between the bottom surface of the upper platform (2) and the top surface of the base (1) to seal the gap between the upper platform (2) and the base (1) after the height is adjusted; The self-positioning mechanism comprises a positioning plug-in (4) and a height-adjusting groove (1021); the height-adjusting groove (1021) is composed of a vertical groove (10211) and a plurality of circular arc short grooves (10212), and the vertical groove (10211) and the circular arc short grooves (10212) are both opened on the outer cylindrical surface of the round socket (102); the vertical groove (10211) is arranged along the height direction of the round socket (102), and the top end surface of the vertical groove (10211) is flush with the top surface of the round socket (102). A plurality of the circular arc short grooves (10212) are evenly spaced along the length direction of the vertical groove (10211), and one end of the circular arc short groove (10212) is connected to the vertical groove (10211), and the other end of the circular arc short groove (10212) is provided with a positioning hole (1023) for inserting the positioning plug-in (4) along the radial direction of the round socket (102); the positioning plug-in (4) is installed at the bottom end of the round plug-in (205), and the positioning plug-in (4) is arranged along the radial direction of the round plug-in (205).

2. The composite abutment for dental implant restoration according to claim 1, characterized in that: The number of the self-positioning mechanisms is several, and the several self-positioning mechanisms are arranged in a circular array on the outer cylindrical surface of the round socket (102).

3. The composite abutment for dental implant restoration according to claim 1, characterized in that: A first circular hole (103) is provided at the top center of the circular socket (102), and the first circular hole (103) extends into the interior of the base (1), and one end of the positioning socket (1023) away from the short circular arc groove (10212) is connected to the first circular hole (103).

4. The composite abutment for dental implant restoration according to claim 1, characterized in that: The positioning plug (4) comprises a spring (401) and a movable plug rod (402); a guide hole (204) arranged along the radial direction of the circular plug hole (205) is opened on the wall of the circular plug hole (205); a spring (401) is arranged in the guide hole (204); the movable plug rod (402) is matched and connected with the guide hole (204); one end of the movable plug rod (402) located in the guide hole (204) is fixedly connected to one end of the spring (401); and the other end of the spring (401) is fixedly connected to the end surface of the guide hole (204).

5. The composite abutment for dental implant restoration according to claim 4, characterized in that: The end of the movable insertion rod (402) located outside the guide hole (204) is spherical; the top end of the vertical groove (10211) is provided with an extrusion inclined surface (1022) for extruding the spherical end of the movable insertion rod (402).

6. The composite abutment for dental implant restoration according to claim 1, characterized in that: The positioning plug-in (4) comprises a movable plug rod (402); a guide hole (204) arranged along the radial direction of the circular plug hole (205) is opened on the wall of the circular plug hole (205); the movable plug rod (402) is matched and connected with the guide hole (204); the movable plug rod (402) is an iron rod; a magnetic attraction ring (7) is fixedly embedded and installed in one end of the positioning plug hole (1023) away from the circular arc short groove (10212); the magnetic attraction ring (7) is a permanent magnet, and a middle hole (701) is arranged in the middle of the magnetic attraction ring (7).

7. The composite abutment for dental implant restoration according to claim 3, characterized in that: An upper hole body (201) is provided at the center of the top of the upper platform (2), and the upper hole body (201) is connected to the circular plug hole (205); it also includes a push rod (a) for inserting into the positioning plug hole (1023); the push rod (a) is an L-shaped rod, the push rod (a) passes through the upper hole body (201) and the circular plug hole (205), and the push rod (a) extends into the first circular hole (103); a clamping seat (6) is fixedly connected to the top hole wall of the upper hole body (201), a clamping groove (602) is provided in the clamping seat (6), and an entrance groove (601) is provided on one side of the clamping seat (6), and the groove width of the entrance groove (601) is smaller than the groove diameter of the clamping groove (602).

8. The composite abutment for dental implant restoration according to claim 1, characterized in that: The support plug ring (5) comprises a circular ring body (501) and two sealing gaskets (502); the two sealing gaskets (502) are respectively fixedly mounted on the top surface and the bottom surface of the circular ring body (501); a second circular ring groove (203) is provided on the bottom surface of the upper platform (2); a first circular ring groove (105) is provided on the top surface of the base (1); the first circular ring groove (105) and the second circular ring groove (203) are aligned; the two sealing gaskets (502) are respectively fitted with the bottom surface of the upper platform (2) and the top surface of the base (1); and the two sealing gaskets (502) are respectively embedded in the first circular ring groove (105) and the second circular ring groove (203).

9. The composite abutment for dental implant restoration according to claim 1, characterized in that: A positioning base column (101) is fixedly connected at the bottom center of the base (1), and both sides of the positioning base column (101) are provided with notches (1011); a second circular hole (104) is provided at the bottom center of the positioning base column (101), the second circular hole (104) is connected to the first circular hole (103), and the aperture of the second circular hole (104) is smaller than the aperture of the first circular hole (103); and the central bolt (3) is composed of a round rod (301), a pressure head (302) and a stud (301). 3), the bottom end of the round rod (301) is fixedly connected to the top end of the stud (303), and the diameters of the round rod (301) and the stud (303) are equal, the top end of the round rod (301) is fixedly connected to the bottom surface of the pressure head (302), the round rod (301), the pressure head (302) and the stud (303) are coaxially arranged, the pressure head (302) is matched and connected to the first circular hole (103), and a hexagonal hole is arranged in the middle of the top surface of the pressure head (302), and the round rod (301) is matched and connected to the second circular hole (104).

Images