CN115153921B

CN115153921B - Oral cavity connecting structure and preparation method thereof

Info

Publication number: CN115153921B
Application number: CN202210737871.6A
Authority: CN
Inventors: 高幸荣; 高俊; 包雅星
Original assignee: Gaofeng Medical Equipment Wuxi Co ltd
Current assignee: Gaofeng Medical Equipment Wuxi Co ltd
Priority date: 2022-06-27
Filing date: 2022-06-27
Publication date: 2023-08-18
Anticipated expiration: 2042-06-27
Also published as: CN115153921A

Abstract

The invention discloses an oral cavity connecting structure, which comprises a base structure, wherein the base structure comprises a connecting body and a base body, the base body is arranged at the upper end position of the connecting body, the top of the base body is provided with a sealing component, the connecting body comprises a thread sleeve and a thread cylinder, the top end of the thread cylinder is provided with a meshing section, the outside of the thread sleeve is provided with a thread section, the bottom of the thread sleeve is connected with the meshing section, the bottom end of the thread sleeve is provided with a cone head, the base body comprises a first hydroxyapatite body and a second hydroxyapatite body, and the first hydroxyapatite body is arranged at the lower end of the second hydroxyapatite body; the invention realizes the assembly of the oral cavity connecting structure, meets the requirement of on-site rapid assembly, is provided with the bioactive substances to simulate biological signals so as to stimulate the actions of cell adhesion, proliferation, differentiation and the like, and is beneficial to the fusion process of the oral cavity connecting structure and oral tissues.

Description

Oral cavity connecting structure and preparation method thereof

Technical Field

The invention relates to the field of oral cavity pre-forms, in particular to an oral cavity connecting structure and a preparation method thereof.

Background

The implant denture is to implant an oral cavity connecting structure (artificial tooth root) in an alveolar bone of an oral cavity tooth-missing area, and then to manufacture a prosthesis at the upper end of the implant denture after the oral cavity connecting structure survives. The artificial tooth has the advantages that the chewing function of a patient can be obviously improved, the feeling is comfortable and similar to that of real teeth, and a plurality of difficult repair clinical cases which are difficult to solve by conventional false teeth can obtain satisfactory curative effects by implanting false teeth.

Traditional oral cavity connection structure, the connection effect is general between with the planting body, and the leakproofness is not strong, adopts the connection structure of integral type to use simultaneously for connection structure's application range receives the restriction, and connection structure can not promote the bonding between planting body and the oral cavity structure simultaneously, and the effect is single.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides an oral cavity connecting structure.

The oral cavity connecting structure comprises a base structure, wherein the base structure comprises a connecting body and a base body, the base body is arranged at the upper end of the connecting body, and a sealing assembly is arranged at the top of the base body;

the connector comprises a thread sleeve and a thread cylinder, wherein the top end of the thread cylinder is provided with a meshing section, the outside of the thread sleeve is provided with a thread section, the bottom of the thread sleeve is connected with the meshing section, and the bottom end of the thread sleeve is provided with a conical head;

the base body comprises a first hydroxyapatite body and a second hydroxyapatite body, wherein the first hydroxyapatite body is arranged at the lower end of the second hydroxyapatite body, a plurality of guide posts are arranged on the upper surface of the first hydroxyapatite body close to the edge, a plurality of guide slots matched with the guide posts are formed in the inner side of the second hydroxyapatite body at equal intervals close to the edge, a plurality of arc blocks are integrally connected to the bottom of the second hydroxyapatite body, and a plurality of arc slots matched with the arc blocks are integrally formed in the top surface of the first hydroxyapatite body.

Optionally, the inner wall of screw thread section looks adaptation has been seted up to screw thread section, and the thread bush passes through screw thread section meshing and connects in the inside of screw thread section.

Optionally, a groove meshed with the meshing section is formed in the bottom of the first hydroxyapatite body, and the threaded cylinder is meshed with the first hydroxyapatite body through the meshing section.

Optionally, seal assembly includes the sealing ring, and the inside of sealing ring is provided with the joint ring, is connected with a plurality of connecting plate between the top surface of joint ring and the top surface of sealing ring equidistance.

Optionally, the bottom surface of sealing ring has seted up the joint groove, and a plurality of butt joint groove has been seted up to the bottom surface of joint ring, and the inside equidistance in butt joint groove installs a plurality of fixed plate.

Optionally, the joint recess has been seted up to one side of fixed plate, and a plurality of cardboard is installed to the surface equidistance of guide pillar, and the upper end of guide pillar is located the inboard of butt joint groove, and after the one end card of guide pillar goes into the butt joint inslot, the one end joint of cardboard is in the inboard of joint recess.

Optionally, the top surface of joint ring has seted up the circular slot, and the screw thread groove has been seted up to the inner wall in circular slot, and the degree of depth of screw thread groove is less than the height of joint ring.

Optionally, the clamping groove is clamped at the top peripheral position of the second hydroxyapatite body, and the diameter of the sealing ring is larger than that of the second hydroxyapatite body.

Optionally, the first hydroxyapatite body and the second hydroxyapatite body are connected with the arc block through an arc groove, and the connection part of the first hydroxyapatite body and the second hydroxyapatite body is arranged in a multi-section continuous arc shape.

The preparation method of the oral cavity connecting structure comprises the oral cavity connecting structure, and the preparation method further comprises the following steps:

step one: firstly, preparing a die with a base structure corresponding to each structural shape, and preparing a threaded sleeve, a threaded cylinder, a first hydroxyapatite body and a second hydroxyapatite body;

step two: forming a shaping object of the first hydroxyapatite body and the second hydroxyapatite body on the inner surfaces of the dies for preparing the first hydroxyapatite body and the second hydroxyapatite body, taking the first hydroxyapatite body and the second hydroxyapatite body as bioactive substances to form a structure of a base body, and taking 1-15nm salt crystals or naphthalene crystals as the shaping object of the bioactive structure;

step three: assembling each prepared structure, engaging the thread section outside the thread sleeve in the thread cylinder, screwing the engaged section into the bottom of the first hydroxyapatite body to be connected with the engaged section, inserting each guide pillar on the first hydroxyapatite body into each guide slot in the second hydroxyapatite body, and finally fixing one end of the guide pillar through the sealing component to complete the assembly of the whole oral cavity connecting structure blank;

step four: removing the shaped objects attached to the surfaces of the first hydroxyapatite body and the second hydroxyapatite body, placing the oral cavity connecting structure blank body in warm water at 30-50 ℃ for soaking for 1-1.5h, and removing the shaped objects on the surfaces of the first hydroxyapatite body and the second hydroxyapatite body to obtain the oral cavity connecting structure.

The invention has the beneficial effects that:

1. the invention adopts the hydroxyapatite body I and the hydroxyapatite body II as bioactive substances to form the bioactive structure, and before the dental crowns are planted, the interior of the implant is sealed by the oral cavity connecting structure, so that biological signals can be simulated to stimulate the actions of cell adhesion, proliferation, differentiation and the like, and the oral cavity connecting structure and the oral cavity tissue fusion process are facilitated.

2. The oral cavity connection structure is integrally prepared through a step-by-step reverse die mode, when the oral cavity connection structure is used, the oral cavity connection structure can be assembled on site, the threaded sleeve is meshed with the threaded cylinder, the meshed section is meshed with the first hydroxyapatite body, meanwhile, the first hydroxyapatite body and the second hydroxyapatite body are connected with the arc groove in a matched mode through the arc block, fusion communication is achieved, the guide pillar is connected with the guide groove to be reinforced, the assembly of the oral cavity connection structure is facilitated, meanwhile, the first hydroxyapatite body or the second hydroxyapatite body can be conveniently replaced according to loss conditions, the meshing height of the threaded sleeve and the threaded cylinder can be controlled, the height of the whole oral cavity connection structure can be adjusted, and the oral cavity connection structure is suitable for filling of implants of different specifications.

3. Through set up cardboard and fixed plate butt joint in the outside of guide pillar for all there is the clearance between guide pillar and guide slot and the butt joint inslot wall, has made things convenient for the outside free of hydroxyapatite body a matter molecule that is located the lower part, promotes the oral cavity tissue absorption, has improved the connection speed between oral cavity tissue and the planting body. Through setting up seal assembly, utilize the joint groove that seal ring bottom set up to seal the outward flange of base station body, seal the gap between base station body and the planting body, avoid the intraoral liquid to enter into the inside of planting body and cause the condition of bacterial infection and pollution to appear, set up the joint ring, after the guide pillar card enters into the butt joint groove, seal the upper portion of guide slot, played better sealed effect.

Drawings

FIG. 1 is a schematic view of the overall structure of an oral cavity connecting structure according to the present invention;

FIG. 2 is a split view of the overall structure of an oral cavity connecting structure according to the present invention;

FIG. 3 is a cross-sectional view of a base body in an oral cavity connection structure according to the present invention;

FIG. 4 is a block diagram of a seal assembly in an oral attachment of the present invention;

FIG. 5 is a bottom view of a seal ring and snap ring of an oral connection according to the present invention;

FIG. 6 is a cross-sectional view of a spacing cylinder in an oral connection according to the present invention;

fig. 7 is a bottom view of a fixing plate in an oral cavity connection structure according to the present invention;

fig. 8 is an overall structure application view of an oral cavity connecting structure according to the present invention.

In the figure: 1. a base structure; 2. a connecting body; 3. a base body; 4. a seal assembly; 5. a thread cylinder; 6. a thread sleeve; 7. a conical head; 8. a threaded section; 9. a meshing section; 10. a hydroxyapatite body I; 11. a second hydroxyapatite body; 12. a guide post; 13. an arc groove; 14. a guide groove; 15. an arc block; 16. a seal ring; 17. a clamping ring; 18. a connecting plate; 19. a circular groove; 20. a thread groove; 21. a clamping groove; 22. a butt joint groove; 23. a fixing plate; 24. a clamping groove; 25. and (5) clamping plates.

Detailed Description

The technical solutions of the present invention will be clearly and completely described in connection with the embodiments, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Example 1

Referring to fig. 1-7, an oral cavity connecting structure comprises a base structure 1, wherein the base structure 1 comprises a connecting body 2 and a base body 3, the base body 3 is arranged at the upper end position of the connecting body 2, and a sealing component 4 is arranged at the top of the base body 3;

the connector 2 comprises a thread sleeve 6 and a thread cylinder 5, wherein a meshing section 9 is arranged at the top end of the thread cylinder 5, a thread section 8 is arranged outside the thread sleeve 6, the bottom of the thread sleeve 6 is connected with the meshing section 9, and a conical head 7 is arranged at the bottom end of the thread sleeve 6;

the base body 3 comprises a first hydroxyapatite body 10 and a second hydroxyapatite body 11, the first hydroxyapatite body 10 is arranged at the lower end of the second hydroxyapatite body 11, a plurality of guide posts 12 are arranged on the upper surface of the first hydroxyapatite body 10 close to the edge, a plurality of guide grooves 14 matched with the guide posts 12 are formed in the inner side of the second hydroxyapatite body 11 close to the edge at equal intervals, a plurality of arc blocks 15 are integrally connected to the bottom of the second hydroxyapatite body 11, a plurality of arc grooves 13 matched with the arc blocks 15 are integrally formed in the top surface of the first hydroxyapatite body 10, and the arc blocks 15 are in butt joint with the arc grooves 13, so that the first hydroxyapatite body 10 and the second hydroxyapatite body 11 are more compact when connected.

As a technical optimization scheme of the invention, the inner wall of the thread cylinder 5 is provided with threads matched with the thread segments 8, the thread sleeve 6 is connected in the thread cylinder 5 through the engagement of the thread segments 8, and the thread segments 8 are engaged with the inner wall of the thread cylinder 5 through threads, so that the thread segments 8 can be detached.

As a technical optimization scheme of the invention, the bottom of the first hydroxyapatite body 10 is provided with a groove meshed with the meshing section 9, the threaded cylinder 5 is meshed with the first hydroxyapatite body 10 through the meshing section 9, and the meshing section 9 is meshed with the groove at the bottom of the first hydroxyapatite body 10, so that the butt joint between the connector 2 and the base 3 is realized.

As a technical optimization scheme of the invention, the sealing assembly 4 comprises the sealing ring 16, the clamping ring 17 is arranged in the sealing ring 16, a plurality of connecting plates 18 are connected between the top surface of the clamping ring 17 and the top surface of the sealing ring 16 at equal intervals, the clamping ring 17 is connected with the sealing ring 16 through the connecting plates 18, and the sealing ring 16 is wrapped on the periphery of the base body 3 to play a role in sealing, so that bacterial pollution caused by infiltration of oral liquid into the implant is avoided.

As a technical optimization scheme of the invention, the bottom surface of the sealing ring 16 is provided with the clamping groove 21, the bottom surface of the clamping ring 17 is provided with the plurality of butt joint grooves 22, and the inside of the butt joint grooves 22 is provided with the plurality of fixing plates 23 at equal intervals.

As a technical optimization scheme of the invention, one side of the fixing plate 23 is provided with the clamping grooves 24, the outer surfaces of the guide posts 12 are equidistantly provided with the clamping plates 25, the upper ends of the guide posts 12 are positioned at the inner sides of the butting grooves 22, one ends of the clamping plates 25 are clamped at the inner sides of the clamping grooves 24 after one ends of the guide posts 12 are clamped into the inner sides of the butting grooves 22, and the clamping plates 25 are fixed through the clamping grooves 24 on the fixing plate 23, so that the ends of the guide posts 12 are conveniently fixed.

As a technical optimization scheme of the invention, the top surface of the clamping ring 17 is provided with the circular groove 19, the inner wall of the circular groove 19 is provided with the thread groove 20, the depth of the thread groove 20 is smaller than the height of the clamping ring 17, and the thread groove 20 is arranged to facilitate the whole connection structure to be taken out after the implant and the oral cavity are molded, thereby facilitating the subsequent implantation of the dental crowns.

As a technical optimization scheme of the invention, the clamping groove 21 is clamped at the top peripheral position of the second hydroxyapatite body 11, and the diameter of the sealing ring 16 is larger than that of the second hydroxyapatite body 11.

As a technical optimization scheme of the invention, the first hydroxyapatite body 10 and the second hydroxyapatite body 11 are connected with the arc block 15 through the arc groove 13, and the connection part of the first hydroxyapatite body 10 and the second hydroxyapatite body 11 is arranged in a multi-section continuous arc shape, so that the butt joint between two bioactive structures is facilitated.

The section of the bioactive structure formed by the first hydroxyapatite body 10 and the second hydroxyapatite body 11 is similar to a curve, the joint of the first hydroxyapatite body 10 and the second hydroxyapatite body 11 is formed by a plurality of microstructures, the lowest point of each microstructure is connected into an arc line, and the microstructures are at least partially fused and communicated.

After the epithelial cells were cultured on the surface of the oral cavity connection structure material, it was found by SEM observation that: the fusion process of the implantation structure and the oral tissue is accelerated by about 10 percent, the oral connecting structure is tightly connected with epithelial cells, and no bacterial plaque is formed, so that inflammation is not caused.

Example two

Based on example one, after the epithelial cells were cultured on the surface of the oral cavity connecting structure material, it was found by SEM observation that: the fusion process of the implantation structure and the oral tissue is accelerated by about 15%, the oral connecting structure is tightly connected with epithelial cells, and no bacterial plaque is formed, so that inflammation is not caused.

Example III

Based on example one, after the epithelial cells were cultured on the surface of the oral cavity connecting structure material, it was found by SEM observation that: the fusion process of the implantation structure and the oral tissue is accelerated by about 12.5 percent, the oral connecting structure is tightly connected with epithelial cells, and no bacterial plaque is formed, so that inflammation is not caused.

Example IV

Based on the first embodiment, when 40% of the microstructures are in fusion communication, and the degree of fusion is 22%;

after the epithelial cells were cultured on the surface of the oral cavity connection structure material, it was found by SEM observation that: the implantation structure and the oral tissue fusion process are accelerated by about 24%, the oral connecting structure is tightly connected with epithelial cells, and no bacterial plaque is formed, so that inflammation is not caused.

Example five

Based on the first embodiment, when the microstructures are in 30% fusion communication and the degree of fusion is 40%;

after the epithelial cells were cultured on the surface of the oral cavity connection structure material, it was found by SEM observation that: the implantation structure and the oral tissue fusion process are accelerated by about 25%, the oral connecting structure is tightly connected with epithelial cells, and no bacterial plaque is formed, so that inflammation is not caused.

Example six

Based on the first embodiment, when 50% of the microstructures are in fusion communication, and the degree of fusion is 5%;

after the epithelial cells were cultured on the surface of the oral cavity connection structure material, it was found by SEM observation that: the fusion process of the implantation structure and the oral tissue is accelerated by about 29 percent, the oral connecting structure is tightly connected with epithelial cells, and no bacterial plaque is formed, so that inflammation is not caused.

Example seven

The preparation method of the oral cavity connecting structure specifically comprises the following steps:

step one: firstly, preparing a die of the base structure 1 corresponding to each structure shape, and preparing a threaded sleeve 6, a threaded cylinder 5, a first hydroxyapatite body 10 and a second hydroxyapatite body 11;

step two: forming a shaping object of the first hydroxyapatite body 10 and the second hydroxyapatite body 11 on the inner surface of a die for preparing the first hydroxyapatite body 10 and the second hydroxyapatite body 11, taking the first hydroxyapatite body 10 and the second hydroxyapatite body 11 as bioactive substances to form a structure of a base body 3, and taking 1-15nm salt crystals or naphthalene crystals as shaping objects of the bioactive structures;

step three: assembling each prepared structure, engaging a thread section 8 outside a thread sleeve 6 in a thread cylinder 5, screwing the engaged section 9 into the bottom of a first hydroxyapatite body 10 to be connected with the first hydroxyapatite body, inserting each guide pillar 12 on the first hydroxyapatite body 10 into each guide slot 14 in a second hydroxyapatite body 11, and finally fixing one end of each guide pillar 12 through a sealing assembly 4 to complete the assembly of the whole oral cavity connecting structure blank;

step four: removing the shaped materials attached to the surfaces of the first hydroxyapatite body 10 and the second hydroxyapatite body 11, placing the oral cavity connecting structure blank body in warm water at 50 ℃ for soaking for 1h, and removing the shaped materials on the surfaces of the first hydroxyapatite body 10 and the second hydroxyapatite body 11 to obtain the oral cavity connecting structure.

Example eight

step three: assembling each prepared structure, namely assembling a thread bush 6, meshing a thread section 8 outside the thread bush 6 in a thread cylinder 5, screwing the meshing section 9 into the bottom of a first hydroxyapatite body 10 to be connected with the first hydroxyapatite body, inserting each guide pillar 12 on the first hydroxyapatite body 10 into each guide slot 14 in a second hydroxyapatite body 11, and finally fixing one end of each guide pillar 12 through a sealing assembly 4 to complete the assembly of the whole oral cavity connecting structure blank;

step four: removing the shaped materials attached to the surfaces of the first hydroxyapatite body 10 and the second hydroxyapatite body 11, placing the oral cavity connecting structure blank body in warm water at 30 ℃ for soaking for 1.5 hours, and removing the shaped materials on the surfaces of the first hydroxyapatite body 10 and the second hydroxyapatite body 11 to obtain the oral cavity connecting structure.

Example nine

step four: removing the shaped materials attached to the surfaces of the first hydroxyapatite body 10 and the second hydroxyapatite body 11, placing the blank body of the oral cavity connecting structure in warm water at 30 ℃ for soaking for 1.5 hours, removing the shaped materials on the surfaces of the first hydroxyapatite body 10 and the second hydroxyapatite body 11, and heating the oral cavity connecting structure at high temperature until the surface structural parts of the first hydroxyapatite body 10 and the second hydroxyapatite body 11 of the oral cavity connecting structure are deformed, thereby obtaining the oral cavity connecting structure.

Examples ten

step four: removing the shaped materials attached to the surfaces of the first hydroxyapatite body 10 and the second hydroxyapatite body 11, placing the blank body of the oral cavity connecting structure in warm water at 50 ℃ for soaking for 1h, removing the shaped materials on the surfaces of the first hydroxyapatite body 10 and the second hydroxyapatite body 11, and heating the oral cavity connecting structure at high temperature until the surface structural parts of the first hydroxyapatite body 10 and the second hydroxyapatite body 11 of the oral cavity connecting structure are deformed, thereby obtaining the oral cavity connecting structure.

The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.

Claims

1. The oral cavity connecting structure comprises a base table structure (1), and is characterized in that the base table structure (1) comprises a connecting body (2) and a base table body (3), the base table body (3) is arranged at the upper end position of the connecting body (2), and a sealing assembly (4) is arranged at the top of the base table body (3);

the connecting body (2) comprises a thread sleeve (6) and a thread cylinder (5), the top end of the thread cylinder (5) is provided with a meshing section (9), the outside of the thread sleeve (6) is provided with a thread section (8), the bottom of the thread sleeve (6) is connected with the meshing section (9), and the bottom end of the thread sleeve (6) is provided with a conical head (7);

the base body (3) comprises a first hydroxyapatite body (10) and a second hydroxyapatite body (11), the first hydroxyapatite body (10) is arranged at the lower end of the second hydroxyapatite body (11), a plurality of guide posts (12) are arranged on the upper surface of the first hydroxyapatite body (10) close to the edge, a plurality of guide grooves (14) matched with the guide posts (12) are formed in the inner side of the second hydroxyapatite body (11) at equal intervals close to the edge, a plurality of arc blocks (15) are integrally connected to the bottom of the second hydroxyapatite body (11), and a plurality of arc grooves (13) matched with the arc blocks (15) are integrally formed in the top surface of the first hydroxyapatite body (10);

the inner wall of the thread cylinder (5) is provided with threads matched with the thread section (8), and the thread sleeve (6) is connected in the thread cylinder (5) through the thread section (8) in a meshed manner;

the bottom of the first hydroxyapatite body (10) is provided with a groove meshed with the meshing section (9), and the threaded cylinder (5) is meshed with the first hydroxyapatite body (10) through the meshing section (9).

2. The oral cavity connecting structure according to claim 1, wherein the sealing assembly (4) comprises a sealing ring (16), a clamping ring (17) is arranged in the sealing ring (16), and a plurality of connecting plates (18) are connected between the top surface of the clamping ring (17) and the top surface of the sealing ring (16) at equal intervals.

3. An oral cavity connecting structure according to claim 2, characterized in that the bottom surface of the sealing ring (16) is provided with a clamping groove (21), the bottom surface of the clamping ring (17) is provided with a plurality of butt joint grooves (22), and a plurality of fixing plates (23) are equidistantly arranged in the butt joint grooves (22).

4. An oral cavity connecting structure according to claim 3, wherein a clamping groove (24) is formed in one side of the fixing plate (23), a plurality of clamping plates (25) are equidistantly arranged on the outer surface of the guide post (12), the upper end of the guide post (12) is located at the inner side of the butt joint groove (22), and after one end of the guide post (12) is clamped into the inner side of the butt joint groove (22), one end of the clamping plate (25) is clamped into the inner side of the clamping groove (24).

5. The oral cavity connecting structure according to claim 4, wherein the top surface of the clamping ring (17) is provided with a circular groove (19), the inner wall of the circular groove (19) is provided with a thread groove (20), and the depth of the thread groove (20) is smaller than the height of the clamping ring (17).

6. The oral cavity connecting structure according to claim 5, wherein the clamping groove (21) is clamped at the top peripheral position of the second hydroxyapatite body (11), and the diameter of the sealing ring (16) is larger than that of the second hydroxyapatite body (11).

7. The oral cavity connecting structure according to claim 6, wherein the first hydroxyapatite body (10) and the second hydroxyapatite body (11) are connected with the arc block (15) through the arc groove (13), and the connecting part of the first hydroxyapatite body (10) and the second hydroxyapatite body (11) is arranged in a multi-section continuous arc shape.

8. A method of making an oral connection according to claim 7, further comprising the steps of:

step one: firstly, preparing a die of a base structure (1) corresponding to each structure shape, and preparing a threaded sleeve (6), a threaded cylinder (5) and a hydroxyapatite body I (10) and a hydroxyapatite body II (11);

step two: forming a shaping object of a first hydroxyapatite body (10) and a second hydroxyapatite body (11) on the inner surfaces of a mold for preparing the first hydroxyapatite body (10) and the second hydroxyapatite body (11), taking the first hydroxyapatite body (10) and the second hydroxyapatite body (11) as bioactive substances to form a structure of a base body (3), and taking salt crystals or naphthalene crystals with the diameters of 1-15nm as shaping objects of the bioactive structures;

step three: assembling each prepared structure, engaging a thread section (8) outside a thread sleeve (6) in a thread cylinder (5), screwing the engaged section (9) into the bottom of a first hydroxyapatite body (10) to be connected with the engaged section, inserting guide posts (12) on the first hydroxyapatite body (10) into guide slots (14) in a second hydroxyapatite body (11), and finally fixing one end of the guide post (12) through a sealing component (4) to complete the assembly of the whole oral cavity connecting structure blank;

step four: removing the shaped materials attached to the surfaces of the first hydroxyapatite body (10) and the second hydroxyapatite body (11), placing the oral cavity connecting structure blank body in warm water at 30-50 ℃ for soaking for 1-1.5h, and removing the shaped materials on the surfaces of the first hydroxyapatite body (10) and the second hydroxyapatite body (11) to obtain the oral cavity connecting structure.