CN219207418U

CN219207418U - False tooth based on 3D prints

Info

Publication number: CN219207418U
Application number: CN202223318974.3U
Authority: CN
Inventors: 杨继忠; 李亚玲; 李吉海
Original assignee: Quanzhou Bojun Chenggong Ceramic Tooth Co ltd
Current assignee: Quanzhou Bojun Chenggong Ceramic Tooth Co ltd
Priority date: 2022-12-10
Filing date: 2022-12-10
Publication date: 2023-06-20
Anticipated expiration: 2032-12-10

Abstract

The utility model relates to a false tooth based on 3D prints, package implant, abutment and dental crown, the abutment sets up in the top of implant, the mounting groove of installing in the abutment is seted up to the bottom of dental crown, the mounting groove is located to the abutment card, the mounting groove is circular, the perisporium of mounting groove slides and is connected with the card and establishes the piece, the perisporium of abutment is provided with the card that supplies the card to establish the piece and establishes the groove, the diameter on abutment upper portion diminishes gradually along the direction of keeping away from the implant in order to form the guide surface, the dental crown is provided with the drive card and establishes the piece card and locate the first drive piece of card establishing the groove, the one end butt in the guide surface of abutment, works as when the dental crown moves to the direction that is close to the implant, the guide surface forces the card to establish the piece card and establishes the groove. The present application has the potential effect of reducing the relative rotation of the crown and abutment.

Description

False tooth based on 3D prints

Technical Field

The application relates to the technical field of dental restoration, in particular to a false tooth based on 3D printing.

Background

Dentures are what is commonly known as "dentures". As with "artificial leg", "prosthesis" and "prosthetic" are referred to as "prosthetic", the term "prosthetic" is meant to refer to the teeth that "obligate" a human. In oral medical treatment, false teeth matched with a patient are frequently printed through a 3D printing technology, the common false teeth comprise an implant, a base and a dental crown, the implant is firstly implanted into the upper and lower jawbones of a human tooth part in a surgical mode in the process of dental implantation, after a wound heals, the dental crown is mounted on the base through a mounting base on the implant and screws and the like after the wound heals.

In the actual mounting process, after the crown is mounted on the abutment by the screw, the crown and the abutment are likely to rotate relatively, thereby causing loosening of the crown.

Disclosure of Invention

To reduce the likelihood of crown and abutment rotation relative to one another, the present application provides a 3D printing-based denture.

The denture based on 3D printing adopts the following technical scheme:

the utility model provides a denture based on 3D prints, wraps implant, abutment and dental crown, the abutment sets up in the top of implant, the mounting groove of installing in the abutment is seted up to the bottom of dental crown, the mounting groove is located to the abutment card, the mounting groove is circular, the perisporium of mounting groove slides and is connected with the block of establishing, the perisporium of abutment is provided with the block that supplies the block to establish and establishes the groove of establishing, the diameter on abutment upper portion diminishes gradually along the direction of keeping away from the implant in order to form the guide surface, the dental crown is provided with the drive block that the block card was established in the first drive block, the one end butt of first drive block is in the guide surface of abutment, when the dental crown moves to the direction that is close to the implant, the block card is established to the block card is forced to establish to the guide surface card and establishes the groove.

Through adopting above-mentioned technical scheme, the dental crown card is located on the base station, and the guide surface of base station forces the card to establish the piece and slides, and when the card was established the piece and is reached the position of establishing the piece, the card established the piece and is established the inslot to the card is established to the complete card of card, establishes the cooperation in groove with the card through the card to establish the piece and establish the cooperation in groove to the relative rotation of dental crown and base station is spacing, thereby improves the connection stability of dental crown and base station.

Preferably, the clamping blocks are arranged in a plurality, the plurality of clamping blocks are distributed in a circumferential array along the circle center of the mounting groove, and the plurality of clamping grooves are correspondingly arranged.

Through adopting above-mentioned technical scheme, be provided with a plurality of blocks of establishing, reduce the shearing force that the block received is established to single card, and the atress is more balanced, improves the joint strength of dental crown and abutment.

Preferably, the first driving block is connected to the dental crown in a sliding manner, the dental crown is connected with the second driving block in a sliding manner, the sliding direction of the second driving block is parallel to the sliding direction of the clamping block, one end, close to each other, of the first driving block and the second driving block is provided with a first wedge-shaped surface in mutual matching and abutting connection, and the other end of the second driving block and one end, far away from the clamping groove, of the clamping block are provided with a second wedge-shaped surface in mutual matching and abutting connection.

Through adopting above-mentioned technical scheme, when the crown moved to the direction that is close to the implant, the guide surface forced first drive piece to be close to the direction of second drive piece and slide, and the first drive piece is slided the back and is forced the second drive piece through first wedge surface and slide, and the second drive piece is slided the back and is forced the card and is established the piece and slide in order to block to establish the inslot.

Preferably, the upper end face of the implant is provided with a limiting groove, the limiting groove is rectangular, and the lower end face of the base station is provided with a limiting block clamped in the limiting groove.

Through adopting above-mentioned technical scheme, the spacing groove cooperates with the stopper, and rotation between base station and the planting body is restricted to reduce base station and bolt and as whole follow the planting body spiral and keep away from the planting body in the planting body, thereby be favorable to further promoting the stability of being connected between base station and the planting body.

Preferably, the base is provided with a bolt, the bolt passes through the base and is connected with the implant, the base is provided with a sinking groove, the bolt cap of bolt is located the sinking groove, the groove is established to the card and is linked together in sinking groove, works as the card is established the piece card and is established the groove when, the card is established the piece one end and is supported tightly in the perisporium of bolt cap.

Through adopting above-mentioned technical scheme, when the block card is established to the card and is located the card and establish the groove, the terminal surface of block is established to the card and the mutual butt of perisporium of bolt cap has the trend of taking place to rotate when the bolt, and the block is established to the card has certain resistance to the bolt to hinder the bolt to rotate, reduce the possibility that the bolt becomes flexible.

Preferably, the tail end of the clamping block is provided with an arc-shaped part, and the arc-shaped part is matched with the peripheral wall of the bolt cap of the bolt.

Through adopting above-mentioned technical scheme, be provided with arc portion to increase the card and establish the area of contact of piece and bolt cap perisporium, when the bolt has the trend that takes place to rotate, the resistance that the piece was established to it to the card can be increased.

Preferably, the dental crown is printed by 3D metal, and the outer edge of the dental crown is provided with a porcelain layer.

By adopting the technical scheme, the porcelain tooth made of metal has good biocompatibility, reduces the possibility of affecting the cavity tissue by the implant, and improves the safety.

Preferably, the surface of the dental crown is provided with a plurality of arc-shaped bulges.

By adopting the technical scheme, the arc-shaped bulges are arranged on the surface of the dental crown, so that the contact area between the porcelain layer and the surface of the dental crown can be increased, and the firmness of the porcelain layer attached to the surface of the dental crown can be improved.

In summary, the utility model has the following beneficial effects:

1. through the arrangement of the clamping blocks, the crown can be limited to rotate to the east relative to the abutment, and the clamping blocks are abutted against the peripheral wall of the bolt cap while limiting the crown, so that the possibility of rotation of the bolt is reduced, and the possibility of loosening of the bolt is reduced;

2. the arc-shaped bulges are arranged on the surface of the dental crown, so that the contact area between the porcelain layer and the surface of the dental crown can be increased, and the firmness of the porcelain layer attached to the surface of the dental crown can be improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present embodiment;

fig. 2 is a schematic diagram showing a state before denture attachment based on 3D printing in the present embodiment;

fig. 3 is a schematic structural view of the clamping block in the present embodiment;

fig. 4 is a schematic view of the structure of the crown in this embodiment.

In the figure, 1, an implant; 2. a base station; 21. a guide block; 211. a guide surface; 22. a clamping groove is formed; 23. sinking grooves; 24. a bolt; 25. a limiting block; 26. a limit groove; 3. a dental crown; 31. a mounting groove; 32. a second slip groove; 33. a third slip groove; 34. a first slip groove; 35. a first driving block; 36. a second driving block; 37. a block is clamped; 371. an arc-shaped portion; 38. arc-shaped protrusions.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-4.

The embodiment of the application discloses artificial tooth based on 3D prints, refer to fig. 1, including implant 1, abutment 2 and crown 3, implant 1 implants in the bone tissue, and the one end that the stiff end was kept away from to implant 1 passes through bolt 24 with abutment 2 to be connected, and mounting groove 31 has been seted up to the bottom of crown 3, and abutment 2 is kept away from the one end of implant 1 and inserts and establish and bond in mounting groove 31.

Referring to fig. 1 and 2, an implant 1 is provided with external threads, and an end of the implant 1 remote from a abutment 2 is screw-coupled to be implanted in bone tissue. The end face of the abutment 2, which is close to the dental crown 3, is provided with a countersunk groove 23 in the direction, which is close to the implant 1, the abutment 2 is provided with a bolt 24, the bolt 24 penetrates through the abutment 2 and is connected with the implant 1 in a threaded manner, and a bolt cap of the bolt 24 is positioned in the countersunk groove 23 and is abutted against the bottom wall of the countersunk groove 23.

Referring to fig. 1 and 2, the mounting groove 31 is circular, the first sliding grooves 34 are formed in the circumferential wall of the mounting groove 31 along the radial direction of the mounting groove 31, the first sliding grooves 34 are provided in a plurality of numbers, in this embodiment, the number of the first sliding grooves 34 is two, the two sliding grooves are distributed in a circumferential array around the center of the mounting groove 31, the dental crown 3 is provided with a clamping block 37 which is connected with the first sliding grooves 34 in a sliding manner, and the circumferential wall of the abutment 2 is provided with a clamping groove 22 for clamping the clamping block 37.

Referring to fig. 1 and 2, a second sliding groove 32 and a third sliding groove 33 corresponding to the first sliding groove 34 are formed in the dental crown 3, the second sliding groove 32 is located above the first sliding groove 34, and the third sliding groove 33 is located between the first sliding groove 34 and the second sliding groove 32. The length direction of the second sliding groove 32 is parallel to the length direction of the first sliding groove 34, the third sliding groove 33 is vertically arranged, one end of the third sliding groove 33 is communicated with the first sliding groove 34, and the other end of the third sliding groove 33 is communicated with the second sliding groove 32.

Referring to fig. 1 and 2, the dental crown 3 is provided with a first driving block 35 slidably connected to the second sliding groove 32, the dental crown 3 is provided with a second driving block 36 slidably connected to the second sliding groove 32, first wedge surfaces which are mutually matched and abutted are respectively provided at one ends of the first driving block 35 and the second driving block 36, and second wedge surfaces which are mutually matched and abutted are respectively provided at one ends of the second driving block 36 and the clamping block 37. The clamping groove 22 comprises a plugging area and an avoidance area, the plugging area is used for plugging and clamping the clamping block 37, and the avoidance area is used for allowing the clamping block 37 to avoid the base station 2 in the clamping process. The upper portion of base station 2 is provided with guide block 21, and guide block 21 fixed connection is in the up end of base station 2, and the diameter of guide block 21 diminishes along the direction that keeps away from to implant 1 in order to form guide surface 211, and first drive block 35 is provided with the third wedge face that is used for with guide surface 211 butt complex away from the one end of second drive block 36. When the dental crown 3 moves towards the direction approaching the implant 1, the guide surface 211 forces the first driving block 35 to slide towards the direction approaching the second driving block 36, the first driving block 35 slides and then forces the second driving block 36 to slide downwards through the first wedge-shaped surface, and the second driving block 36 slides downwards and then forces the clamping block 37 to slide so as to be clamped in the clamping groove 22.

Referring to fig. 1 and 3, the clamping groove 22 is communicated with the sinking groove 23, the tail end of the clamping block 37 is provided with an arc-shaped portion 371, the arc-shaped portion 371 is used for adapting to the outer peripheral wall of the bolt 24 bolt cap, and when the clamping block 37 is completely clamped in the plugging area of the clamping groove 22, the arc-shaped portion 371 is abutted against the outer peripheral wall of the bolt 24 bolt cap.

Referring to fig. 1 and 4, the crown 3 is a metal 3D printed crown 3, and a porcelain layer is provided on the outer surface of the crown 3. The outer surface equipartition of crown 3 is by a plurality of arc protruding 38, and the crown 3 can have a plurality of support piece that print required after printing, polishes the support piece, makes the support piece polished into arc protruding 38 to can increase the area of contact of porcelain layer and crown 3 surface, improve the stability that porcelain layer attached to crown 3 surface.

The implementation principle of the denture based on 3D printing is as follows: when the dental crown 3 moves towards the direction close to the implant 1, the guide surface 211 forces the first driving block 35 to slide towards the direction close to the second driving block 36, the first driving block 35 slides and then forces the second driving block 36 to slide through the first wedge surface, the second driving block 36 slides and then forces the clamping block 37 to slide so as to be clamped in the clamping groove 22, the arc-shaped part 371 at the tail end of the clamping block 37 is mutually abutted with the peripheral wall of the bolt 24 bolt cap, and when the bolt 24 has a tendency of rotating, the clamping block 37 has a certain resistance to the bolt 24, so that the bolt 24 is prevented from rotating, and the possibility of loosening the bolt 24 is reduced.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. Denture based on 3D prints, its characterized in that: including implant (1), abutment (2) and dental crown (3), abutment (2) set up in the top of implant (1), mounting groove (31) in abutment (2) are seted up to the bottom of dental crown (3), mounting groove (31) are located to abutment (2) card, mounting groove (31) are circular, the perisporium of mounting groove (31) slides and is connected with card establishes piece (37), the perisporium of abutment (2) is provided with card that supplies card to establish piece (37) and establishes groove (22) that the card established, the diameter on abutment (2) upper portion is along keeping away from the direction of implant (1) and becoming gradually little in order to form guide surface (211), dental crown (3) are provided with drive card and establish first drive piece (35) of piece (37) card and establish groove (22), one end butt in abutment of base (2) guide surface (211), when dental crown (3) are close to implant (1) and move card direction (211) and establish guide surface (211).

2. A 3D printing-based denture according to claim 1, wherein: the clamping blocks (37) are arranged in a plurality, the clamping blocks (37) are distributed in a circumferential array along the circle center of the mounting groove (31), and the clamping grooves (22) are correspondingly arranged in a plurality.

3. A 3D printing-based denture according to claim 1, wherein: the first driving block (35) is connected to the dental crown (3) in a sliding mode, the dental crown (3) is connected with the second driving block (36) in a sliding mode, the sliding direction of the second driving block (36) is parallel to the sliding direction of the clamping block (37), one end, close to each other, of the first driving block (35) and the second driving block (36) is provided with a first wedge-shaped surface in mutual matching and abutting connection, and the other end of the second driving block (36) and one end, far away from the clamping groove (22), of the clamping block (37) are provided with a second wedge-shaped surface in mutual matching and abutting connection.

4. A 3D printing-based denture according to claim 1, wherein: the upper end face of the implant (1) is provided with a limiting groove (26), the limiting groove (26) is rectangular, and the lower end face of the base (2) is provided with a limiting block (25) clamped in the limiting groove (26).

5. A 3D printing-based denture according to claim 1, wherein: the base station (2) is provided with a bolt (24), the bolt (24) is arranged on the base station (2) in a penetrating mode and is connected with the implant (1), the base station (2) is provided with a sinking groove (23), a bolt cap of the bolt (24) is located in the sinking groove (23), the clamping groove (22) is communicated with the sinking groove (23), and when the clamping block (37) is clamped in the clamping groove (22), one end of the clamping block (37) abuts against the peripheral wall of the bolt cap of the bolt (24).

6. A 3D printing-based denture according to claim 5, wherein: the tail end of the clamping block (37) is provided with an arc-shaped part (371), and the arc-shaped part (371) is matched with the outer peripheral wall of the bolt cap of the bolt (24).

7. A 3D printing-based denture according to claim 1, wherein: the dental crown (3) is formed by printing the dental crown (3) through 3D metal, and a porcelain layer is arranged on the outer surface of the dental crown (3).

8. The 3D printing-based denture of claim 7, wherein: the surface of the dental crown (3) is provided with a plurality of arc-shaped bulges (38).