CN111870372A

CN111870372A - Healing abutment, construction method, preparation method, computer-readable storage medium and equipment

Info

Publication number: CN111870372A
Application number: CN202010898231.4A
Authority: CN
Inventors: 史俊宇; 赖红昌; 李元; 乔士冲; 钱姝娇
Original assignee: Ninth Peoples Hospital Shanghai Jiaotong University School of Medicine
Current assignee: Ninth Peoples Hospital Shanghai Jiaotong University School of Medicine
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2020-11-03

Abstract

The invention provides a healing abutment, a construction method, a preparation method, a computer-readable storage medium and equipment. The healing abutment is sequentially provided with a healing cap and a connecting part for connecting an implant from top to bottom, and the healing cap is sequentially provided with a regeneration section, a lower gingival section and a gingival margin section from a near connecting part end to a far connecting part end; the height of the regeneration section is 2.2-2.8 mm, and the appearance of the regeneration section is a shape that the original natural tooth on the tooth position to be implanted is adducted by 0.8-1.2 mm; the lower gingival section is an area from the gingival plane to 0.3-0.7 mm below the gingival plane, and the shape is that the original natural tooth on the tooth position to be implanted is adducted by 0.2-0.6 mm; the gingival margin section is an area 0.8-1.2 mm above the lower gingival section, and the shape is the same as that of the original natural tooth on the tooth position to be implanted. The invention can seal the alveolar socket, avoid the infection caused by the exposure of the internal bone substitute material, has the supporting function on the original gum and can obtain an ideal gum form.

Description

Healing abutment, construction method, preparation method, computer-readable storage medium and equipment

Technical Field

The invention belongs to the technical field of implant accessories, and particularly relates to a healing abutment, a construction method, a preparation method, a computer-readable storage medium and computer-readable equipment.

Background

In recent years, dental implants have become the treatment of choice for edentulous patients due to their extremely high success rate (> 95%). According to incomplete statistics, over 250 million plant implantation treatments are received by Chinese patients in 2019, and the plant implantation number of Chinese patients keeps the growth rate of over 30% every year in recent years.

In the early stages of implant technology development, all implants required 6 months of healing below the gingival mucosa before functional load could be applied. With the progress and development of the implant surgery concept, a technology of performing transmucosal healing using an implant healing abutment has become a mainstream technology in clinical practice. The use of the implant healing abutment can avoid secondary operations, reduce the wound of a patient and reduce the treatment cost.

At present, the mainstream commercial planting healing abutment is in a preformed form of round titanium alloy. After conventional implantation, the molded transgingival contour is a circular shape which is significantly different from the triangular circular shape of the denture, so that additional temporary denture molding is often required to obtain a more ideal gingival shape. On the other hand, with the continuous progress of the implantation technology, the clinical application of the immediate implantation, i.e. the technology of implanting the implant immediately after tooth extraction, is more and more widely applied in the clinic, which also puts demands on the personalized form of the implant healing abutment. It is often desirable to have an implant healing abutment that seals the socket cavity to prevent infection from exposure of the bone substitute material within, and to provide some support to the existing gums during immediate implantation.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, it is an object of the present invention to provide a healing abutment as well as a method of construction, a method of preparation, a computer readable storage medium, a device. The invention can seal the alveolar socket, avoid the infection caused by the exposure of the internal bone substitute material, has the supporting function on the original gum and can obtain an ideal gum form.

In order to achieve the above and other related objects, a first aspect of the present invention provides a healing abutment, which is provided with a healing cap and a connection portion for connecting an implant in this order from top to bottom, the healing cap being provided with a regeneration section, a subgingival section, and a gingival margin section in this order from a proximal connection portion end to a distal connection portion end;

the height of the regeneration section is 2.2-2.8 mm, and the shape of the regeneration section is a shape that the original natural tooth on the tooth position to be implanted is retracted by 0.8-1.2 mm;

the lower gingival section is an area from the gingival plane to 0.3-0.7 mm below the gingival plane, and the shape of the lower gingival section is a shape which is 0.2-0.6 mm adducted in the position of the original natural tooth on the tooth position to be implanted;

the gingival margin section is an area which is 0.8-1.2 mm above the lower gingival section, and the shape of the gingival margin section is the same as that of the original natural tooth on the tooth position to be implanted.

The gingival plane is the plane flush with the gingiva.

Preferably, at least one of the following technical features is also included:

1) an upper edge of the subgingival section is configured to be flush with a periodontal gingiva at a tooth site to be implanted when the healing abutment is installed into the tooth site to be implanted;

2) the end surface of the gingival margin section far away from the implant is provided with a mounting hole;

3) is selected from one of the following connection modes:

the first connection mode is as follows: the healing cap and the connecting part are integrated;

and a second connection mode: the healing cap is detachably connected with the connecting part;

the third connection mode: the regeneration section is sequentially provided with a first regeneration unit and a second regeneration unit from a near connection end to a far connection end; the first regeneration unit is detachably connected with the second regeneration unit, and the first regeneration unit and the connecting part are integrated;

4) the healing base stationThe material of (1) comprises polyetheretherketone and titanium monoxide, or polyetheretherketone and hydroxyapatite. The polyetheretherketone can be

i 4G or

i2 G。

More preferably, at least one of the following technical characteristics is also included:

31) in the first connection mode of the characteristic 3), the connection part is sequentially provided with a first fixing unit and a first thread section for connecting the implant from the near healing cap end to the far healing cap end;

32) in the second connection mode of the characteristic 3), a first thread section for connecting the implant, a first fixing unit and a second thread section for connecting the healing cap are sequentially arranged on the connection part from the far healing cap end to the near healing cap end, a groove with threads is arranged at the bottom of the healing cap, and the threads of the groove are matched with the threads of the second thread section;

33) in the third connection mode of the characteristic 3), the first regeneration unit is provided with a first regeneration thread section, the bottom of the second regeneration unit is provided with a groove with threads, the threads of the groove are matched with the threads of the first regeneration thread section, and the connection part is sequentially provided with a first fixing unit and a first thread section for connecting the implant from the near healing cap end to the far healing cap end;

34) in the third connection mode of the characteristic 3), the height of the first regeneration unit is 0.4-0.6 mm, and the height of the second regeneration unit is 1.8-2.2 mm;

41) the mass ratio of the polyether-ether-ketone to the titanium monoxide is 80: 20-75: 25; the mass ratio of the polyether-ether-ketone to the hydroxyapatite is 2: 1-3: 1.

the second aspect of the present invention provides a method for constructing the healing abutment model, comprising the steps of:

1) constructing a patient upper and lower jaw model;

2) simulating to pull out teeth on the upper and lower jaw models, and simulating to place the implant;

3) constructing a gingival margin section model according to the outer surface of the natural tooth in the area from the gingival plane to 0.8-1.2 mm above the gingival plane;

constructing a lower gingival model according to a shape of 0.2-0.6 mm inward adduction of the outer surface of the natural tooth in an area from the gingival plane to 0.3-0.7 mm below the gingival plane;

constructing a regeneration section model according to the shape of 0.8-1.2 mm adduction in the outer surface of the natural tooth in the area 2.2-2.8 mm below the lower gingival section, thereby obtaining an initial healing cap model;

4) and constructing a connecting part model arranged below the initial healing cap model, wherein the connecting part model is matched with the implant, so that a healing abutment model is obtained.

Preferably, at least one of the following technical features is also included:

1) in the step 1), a patient upper and lower jaw model is constructed according to CT data;

2) in the step 3), a mounting hole is constructed on the end face of the gingival margin section model far away from the implant;

3) constructing one of the following connection modes:

the first connection mode is as follows: constructing a connecting part model and an initial healing cap model as an integral body;

and a second connection mode: constructing a detachable connection between the connection part model and the initial healing cap model;

the third connection mode: the regeneration section model is sequentially provided with a first regeneration unit model and a second regeneration unit model from the near connection part model end to the far connection part model end, the first regeneration unit model and the second regeneration unit model are constructed to be detachably connected, and the first regeneration unit model and the connection part model are integrated.

More preferably, in the feature 3), at least one of the following technical features is further included:

31) in the first connection mode, a first fixed unit model and a first thread section model used for connecting an implant are sequentially arranged from the end close to the initial healing cap model to the end far away from the initial healing cap model for constructing the connection part model;

32) in the second connection mode, a first thread section model used for connecting an implant, a first fixed unit model and a second thread section model used for connecting an initial healing cap model are sequentially arranged from the far healing cap model end to the near healing cap model end for constructing the connection part model, a groove with threads is constructed at the bottom of the initial healing cap model, and the threads of the groove are matched with the threads of the second thread section model;

33) in the first connection mode, a first regeneration unit model is constructed and provided with a first regeneration thread section, the bottom of a second regeneration unit model is provided with a groove with threads, the threads of the groove are matched with the threads of the first regeneration thread section model, and the connection part model is sequentially provided with a first fixing unit model and a first thread section model used for connecting an implant from the end close to the healing cap model to the end far away from the healing cap model.

The present invention in its third aspect provides a method for preparing the above healing abutment, comprising: the healing abutment model is constructed and obtained by the construction method of the healing abutment model, and the healing abutment is prepared.

Preferably, the healing abutment is prepared by 3D printing, the raw materials of the 3D printing comprising polyetheretherketone and titanium monoxide, or polyetheretherketone and hydroxyapatite.

More preferably, the mass ratio of polyetheretherketone to titanium monoxide is 80: 20-75: 25, as 80: 20-70: 20 or 70: 20-75: 25; the mass ratio of the polyether-ether-ketone to the hydroxyapatite is 2: 1-3: 1, as 2: 1-2.5: 1 or 2.5: 1-3: 1.

a fourth aspect of the present invention provides a computer-readable storage medium having stored thereon a computer program which, when being executed by a processor, carries out the steps of the method for constructing a healing abutment model as described above, or the steps of the method for preparing a healing abutment as described above.

The computer-readable storage medium, as will be appreciated by one of ordinary skill in the art: all or part of the steps for implementing the above method embodiments may be performed by hardware associated with a computer program. The aforementioned computer program may be stored in a computer readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.

A fifth aspect of the invention provides an apparatus comprising: a processor and a memory, the memory for storing a computer program, the processor for executing the computer program stored by the memory to cause the apparatus to perform the steps of the method of constructing a healing abutment model as described above or the steps of the method of preparing a healing abutment as described above.

As mentioned above, the technical scheme has the following beneficial effects:

1) the invention can seal the alveolar socket, avoid the infection caused by the exposure of the internal bone substitute material, has the supporting function on the original gum and can obtain an ideal gum form.

2) The healing abutment material comprises polyether-ether-ketone and titanium monoxide or polyether-ether-ketone and hydroxyapatite, the strength of the healing abutment can be improved, the polishable performance of a pure polyether-ether-ketone healing cap is improved, plaque accumulation is reduced, and the biological compatibility of the material surface can be obviously improved.

Drawings

Fig. 1 is a schematic structural view of a healing abutment in a first connection mode.

Fig. 2 is a structural diagram of a healing abutment in a third connection mode.

Fig. 3 is a schematic view showing the healing abutment in the third connection mode in use.

Fig. 4 is an exploded view of the healing abutment in the third connection mode.

Figure 5 is a schematic view showing the healing abutment in use within the oral cavity.

Figure 6 is a schematic view of the healing abutment in use within the oral cavity.

Fig. 7 shows a display of a Medraw software window for importing patient DICOM data.

Fig. 8 shows a reconstructed three-dimensional model.

FIG. 9 is a graph showing a process of simulating tooth extraction.

Fig. 10 shows a layout of a simulated implant.

Figure 11 shows a view of a designed healing abutment.

FIG. 12 shows MTT assay for the proliferation of MC3T3-E1 on PEEK and PEEK/TiO.

FIG. 13 shows the laser confocal measurements of MC3T3-E1 on PEEK and PEEK/TiO surfaces.

Reference numerals

1 healing cap

11 regeneration section

111 first regeneration unit

1111 first regenerated thread segment

112 second regeneration unit

1121 groove

12 lower gingival part

13 gingival margin section

14 mounting hole

2 connecting part

21 first fixing unit

22 first thread segment

3 implant

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

Please refer to fig. 1 to 13. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.

A healing abutment, as shown in fig. 1, fig. 2, fig. 5 and fig. 6, is provided with a healing cap 1 and a connecting part 2 for connecting an implant 3 in sequence from top to bottom, the healing cap 1 is provided with a regeneration section 11, a subgingival section 12 and a gingival margin section 13 in sequence from a proximal connecting part end to a distal connecting part end;

the height of the regeneration section 11 is 2.2-2.8 mm, and the shape of the regeneration section 11 is that the original natural tooth on the tooth position to be implanted is adducted by 0.8-1.2 mm;

the lower gingival section 12 is an area from the gingival plane to 0.3-0.7 mm below the gingival plane, and the shape of the lower gingival section 12 is a shape which is 0.2-0.6 mm adducted in the position of the original tooth on the tooth position to be implanted;

the gingival margin section 13 is an area which is 0.8-1.2 mm above the lower gingival section 12, and the shape of the gingival margin section 13 is the same as that of the original natural tooth on the tooth position to be implanted.

The height of the regeneration section 11 is 2.2-2.8 mm, and the shape of the regeneration section 11 is that the original natural tooth on the tooth position to be implanted is adducted by 0.8-1.2 mm in the same position so as to leave enough space for blood clots, bone grafting materials or soft tissue transplantation materials.

The lower gingival section 12 is an area from the gingival plane to 0.3-0.7 mm below the gingival plane, and the shape of the lower gingival section 12 is a shape which is 0.2-0.6 mm adducted in the original position of the tooth to be implanted so as to keep the thickness of soft tissues as far as possible.

The gingival margin section 13 is the area of 0.8 ~ 1.2mm more than the lower gingival section 12, the shape of gingival margin section 13 is the shape of the same position of former natural tooth in the tooth position of waiting to plant to ensure the complete closure of alveolus nest, avoid food and plaque to get into the planting area.

In a preferred embodiment, the upper edge of the sub-gingival 12 is configured such that when the healing abutment is installed in the tooth site to be implanted, the upper edge of the sub-gingival 12 is able to be flush with the periodontal gingiva at the tooth site to be implanted.

In a preferred embodiment, the gingival margin section 13 is provided with a mounting hole 14 on the end surface of the distal implant.

In a preferred embodiment, the attachment means is selected from one of the following attachment means:

the first connection mode is as follows: the healing cap 1 and the connecting part 2 are integrated.

And a second connection mode: the healing cap 1 is detachably connected with the connecting part 2.

The third connection mode: the regeneration section 11 is provided with a first regeneration unit 111 and a second regeneration unit 112 in sequence from a near connection end to a far connection end; the first regeneration unit 111 and the second regeneration unit 112 are detachably connected, and the first regeneration unit 111 and the connection part 2 are integrated.

As shown in fig. 1, in the first connection mode, the connection part 2 is provided with a first fixing unit 21 and a first thread section 22 for connecting the implant in sequence from the proximal healing cap end to the distal healing cap end.

In a second connection mode, the connection part 2 is sequentially provided with a first thread section 22, a first fixing unit 21 and a second thread section for connecting the healing cap 1 from a far healing cap end to a near healing cap end, the bottom of the healing cap 1 is provided with a groove with threads, and the threads of the groove are matched with the threads of the second thread section.

In the third connection mode, as shown in fig. 2, the first regeneration unit 111 is provided with a first regeneration thread section 1111, the bottom of the second regeneration unit 112 is provided with a groove 1121 with threads, the threads of the groove 1121 match with the threads of the first regeneration thread section 1111, and the connection part 2 is provided with a first fixing unit 21 and a first thread section 22 for connecting the implant in sequence from the proximal healing cap end to the distal healing cap end. In use, as shown in fig. 3 and 4, the healing abutment is connected to the implant 3 via the first regenerative thread section 1111, the recess 1121 and the first thread section 22.

In a preferred embodiment, the height of the first regeneration unit 111 is 0.4 to 0.6mm, and the height of the second regeneration unit 112 is 1.8 to 2.2 mm.

Example 1

A healing abutment, as shown in figure 1, comprises a healing cap 1 and a connecting part 2 for connecting an implant 3, wherein the healing cap 1 and the connecting part 2 are integrated; the healing cap 1 is provided with a regeneration section 11, a lower gingival section 12 and a gingival margin section 13 in sequence from a proximal connection end to a distal connection end;

the height of the regeneration section 11 is 1.8-2.2 mm, and the shape of the regeneration section 11 is that the original natural tooth on the tooth position to be implanted is adducted by 0.8-1.2 mm;

The connecting part 2 is provided with a first fixing unit 21 and a first thread section 22 for connecting the implant in sequence from the proximal healing cap end to the distal healing cap end.

The healing abutment is made of polyether-ether-ketone and titanium monoxide, wherein the polyether-ether-ketone is

i 4G, wherein the mass ratio of the polyether-ether-ketone to the titanium monoxide is 3: 1. the healing base station has the strength of 90MPa, and the material can improve the strength of the healing base station, improve the polishing performance of a pure polyether-ether-ketone healing cap and reduce plaque accumulation.

MTT test: detection of proliferation potency of mouse osteogenic precursor cells (MC3T3-E1) on PEEK/TiO

Place PEEK and PEEK/TiO (3: 1 by mass) tablets in a 12-well plate, add 4ml of MC3T3-E1 cell suspension (2 x 10)⁴Cells/ml) were distributed evenly over the surface of the material, 4 in each group. After 1,4 and 7 days of culture according to CCK-8 reagentDescription of the cassettes CCK-8 reagent was added to measure the absorbance at A450nm for each well and cell proliferation was calculated according to the following formula: the proliferation rate (proliferation rate) obtained from the experimental a/control wells is shown in fig. 12, and the proliferation potency of PEEK/TiO is significantly increased compared to PEEK in the present invention.

Laser confocal experiments: detection of biocompatibility

Place PEEK and PEEK/TiO (3: 1 by mass) tablets in a 12-well plate, add 4ml of MC3T3-E1 cell suspension (2 x 10)⁴Cells/ml) were distributed evenly over the surface of the material, 4 in each group. Culturing for 7 days, removing the culture medium, adding 4% paraformaldehyde, fixing at room temperature for 30min, washing with PBS for 3 times, adding 5uM Dil fluorescent probe, dyeing for 5min, and adding appropriate amount of anti-fluorescence quencher dropwise onto the surface of the material. After the treatment, the surface of the material was observed by confocal laser microscopy and photographed, as shown in fig. 13, the PEEK/TiO of the present invention has better biocompatibility than PEEK.

The following respective materials were used as the materials for the healing abutment, and the following performance test results were obtained by the same test method as described above:

a) the healing abutment material comprises polyether-ether-ketone and titanium monoxide, wherein the polyether-ether-ketone is

i 4G, wherein the mass ratio of the polyether-ether-ketone to the titanium monoxide is 4: 1.

the healing base station has the strength of 78MPa, and the material can improve the strength of the healing base station, improve the polishing performance of a pure polyether-ether-ketone healing cap and reduce plaque accumulation. The cell growth rate after 1 day of culture was 1.2%, the cell growth rate after 4 days of culture was 2.6%, and the cell growth rate after 7 days of culture was 6.1%.

b) The healing abutment material comprises polyether-ether-ketone and titanium monoxide, wherein the polyether-ether-ketone is

i 2G, wherein the mass ratio of the polyether-ether-ketone to the titanium monoxide is 3.5: 1.

the healing base station has the strength of 87MPa, and the material can improve the strength of the healing base station, improve the polishing performance of a pure polyether-ether-ketone healing cap and reduce bacterial plaque accumulation. The cell growth rate after 1 day of culture was 1.3%, the cell growth rate after 4 days of culture was 2.6%, and the cell growth rate after 7 days of culture was 7.1%.

c) The healing abutment material comprises polyether-ether-ketone and hydroxyapatite, wherein the polyether-ether-ketone is

i 2G, wherein the mass ratio of the polyether-ether-ketone to the hydroxyapatite is 2: 1.

the healing base station has the strength of 70MPa, and the material can improve the strength of the healing base station, improve the polishing performance of a pure polyether-ether-ketone healing cap and reduce plaque accumulation. The cell growth rate after 1 day of culture was 1.8%, the cell growth rate after 4 days of culture was 2.9%, and the cell growth rate after 7 days of culture was 7.4%.

d) The healing abutment material comprises polyether-ether-ketone and hydroxyapatite, wherein the polyether-ether-ketone is

i 4G, wherein the mass ratio of the polyether-ether-ketone to the hydroxyapatite is 3: 1.

the healing base station has the strength of 68MPa, and the material can improve the strength of the healing base station, improve the polishing performance of a pure polyether-ether-ketone healing cap and reduce plaque accumulation. The cell growth rate after 1 day of culture was 1.4%, the cell growth rate after 4 days of culture was 2.7%, and the cell growth rate after 7 days of culture was 6.5%.

e) The healing abutment material comprises polyether-ether-ketone and hydroxyapatite, wherein the polyether-ether-ketone is

i 4G, wherein the mass ratio of the polyether-ether-ketone to the hydroxyapatite is 2.5: 1.

the healing base station has the strength of 69MPa, and the material can improve the strength of the healing base station, improve the polishing performance of a pure polyether-ether-ketone healing cap and reduce plaque accumulation. The cell growth rate after 1 day of culture was 1.5%, the cell growth rate after 4 days of culture was 2.7%, and the cell growth rate after 7 days of culture was 6.8%.

The preparation method of the healing abutment comprises the following steps: based on the appropriate threshold parameter of patient DICOM data, the head model of the patient is rebuilt, the placement of tooth extraction and implant is simulated, the individualized healing abutment is designed according to the tooth defect condition of the patient, and finally the real object is printed by means of the 3D printing technology. Therefore, the healing abutment with different forms is designed according to different tooth defect conditions of each patient, and the traditional healing abutment is replaced. The preparation method comprises the following steps:

1) constructing a patient upper and lower jaw model;

11) as shown in fig. 7, the patient DICOM data is imported into Medraw software, and the appropriate window width level is adjusted to see whether the patient data is available. The patient DICOM data is patient CBCT data.

12) As shown in fig. 8, the gray values of CBCT are adjusted until the alveolar bone surface continues to smoothly reconstruct the three-dimensional model.

21) as shown in fig. 9, a tooth pull was simulated in the software.

22) As shown in FIG. 10, the placement of the implant is simulated according to the tooth defect condition of the patient after the tooth is pulled out.

3) Constructing a gingival margin section model according to the outer surface of the natural tooth in the area from the gingival plane to 0.8-1.2 mm above the gingival plane; constructing a lower gingival model according to a shape of 0.2-0.6 mm inward adduction of the outer surface of the natural tooth in an area from the gingival plane to 0.3-0.7 mm below the gingival plane; constructing a regeneration section model according to the shape that the outer surface of the natural tooth is contracted by 0.8-1.2 mm in the area 2.2-2.8 mm below the lower gingival section, and constructing a mounting hole on the end surface of the gingival margin section model far away from the implant, thereby obtaining an initial healing cap model; simulating a connecting part model integrated with the initial healing cap model and matching with the implant, and constructing a first fixed unit model and a first thread section model for connecting the implant, which are sequentially arranged on the connecting part model from the end close to the initial healing cap model to the end far away from the initial healing cap model, so as to obtain a healing abutment model;

as shown in fig. 11, after the implant is placed, an individualized healing abutment is designed according to the shape of the remaining tooth defect;

4) exporting the designed personalized healing base station model to an STL file, handing the STL file to a 3D printing center, and printing by using 3D printed raw materials comprising polyether-ether-ketone and titanium monoxide.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. A healing abutment is characterized in that a healing cap (1) and a connecting part (2) for connecting an implant (3) are sequentially arranged from top to bottom, and the healing cap (1) is sequentially provided with a regeneration section (11), a subgingival section (12) and a gingival margin section (13) from a near connecting part end to a far connecting part end;

the height of the regeneration section (11) is 2.2-2.8 mm, and the shape of the regeneration section (11) is a shape that the original natural tooth on the tooth position to be implanted is adducted by 0.8-1.2 mm;

the lower gingival section (12) is an area from the gingival plane to 0.3-0.7 mm below the gingival plane, and the shape of the lower gingival section (12) is a shape which is 0.2-0.6 mm inward of the original natural tooth position on the tooth position to be implanted;

the gingival margin section (13) is an area which is 0.8-1.2 mm above the lower gingival section (12), and the shape of the gingival margin section (13) is the same shape as the original natural tooth on the tooth position to be implanted.

2. The healing abutment of claim 1, further comprising at least one of the following technical features:

1) the upper edge of the subgingival section (12) is configured such that when the healing abutment is installed into the tooth site to be implanted, the upper edge of the subgingival section (12) is able to be flush with the periodontal gingiva at the tooth site to be implanted;

2) a mounting hole (14) is formed in the end face, far away from the implant, of the gingival margin section (13);

3) is selected from one of the following connection modes:

the first connection mode is as follows: the healing cap (1) and the connecting part (2) are integrated;

and a second connection mode: the healing cap (1) is detachably connected with the connecting part (2);

the third connection mode: the regeneration section (11) is provided with a first regeneration unit (111) and a second regeneration unit (112) in sequence from a near connection end to a far connection end; the first regeneration unit (111) is detachably connected with the second regeneration unit (112), and the first regeneration unit (111) and the connecting part (2) are integrated;

4) the materials of the healing abutment comprise polyether-ether-ketone and titanium monoxide or polyether-ether-ketone and hydroxyapatite.

3. The healing abutment of claim 2, further comprising at least one of the following technical features:

31) in the first connection mode of the characteristic 3), the connection part (2) is sequentially provided with a first fixing unit (21) and a first thread section (22) for connecting the implant from the near healing cap end to the far healing cap end;

32) in the second connection mode of the characteristic 3), the connection part (2) is sequentially provided with a first thread section (22) for connecting the implant, a first fixing unit (21) and a second thread section for connecting the healing cap (1) from the far healing cap end to the near healing cap end, the bottom of the healing cap (1) is provided with a groove with threads, and the threads of the groove are matched with the threads of the second thread section;

33) in the third connection mode of the characteristic 3), the first regeneration unit (111) is provided with a first regeneration thread section (1111), the bottom of the second regeneration unit (112) is provided with a groove (1121) with threads, the threads of the groove (1121) are matched with the threads of the first regeneration thread section (1111), and the connection part (2) is sequentially provided with a first fixing unit (21) and a first thread section (22) for connecting the implant from the near healing cap end to the far healing cap end;

34) in the third connection mode of the characteristic 3), the height of the first regeneration unit (111) is 0.4-0.6 mm, and the height of the second regeneration unit (112) is 1.8-2.2 mm;

4. the method for constructing a healing abutment model according to any one of claims 1 to 3, comprising the steps of:

1) constructing a patient upper and lower jaw model;

5. The method for constructing a healing abutment model according to claim 4, further comprising at least one of the following technical features:

3) constructing one of the following connection modes:

6. The method for constructing a healing abutment model according to claim 5, wherein the feature 3) further comprises at least one of the following technical features:

7. The method for preparing a healing abutment according to any one of claims 1 to 3, wherein the method for preparing comprises: the healing abutment model constructed by the method of constructing a healing abutment model according to any one of claims 4 to 6, the healing abutment model being prepared.

8. The method for preparing a healing abutment according to claim 7, wherein the healing abutment is prepared by 3D printing, and the raw material of the 3D printing comprises PEEK and titanium monoxide, or PEEK and hydroxyapatite.

9. The method for preparing a healing abutment according to claim 8, wherein the weight ratio of polyetheretherketone to titanium monoxide is 80: 20-75: 25; the mass ratio of the polyether-ether-ketone to the hydroxyapatite is 2: 1-3: 1.

10. A computer readable storage medium, having stored thereon a computer program, characterized in that said program, when being executed by a processor, is adapted to carry out the steps of the method for constructing a healing abutment model according to any one of claims 4 to 6 or the steps of the method for preparing a healing abutment according to any one of claims 7 to 9.

11. An apparatus, comprising: a processor and a memory for storing a computer program, the processor for executing the computer program stored by the memory to cause the apparatus to perform the steps of the method of constructing a healing abutment model according to any one of claims 4 to 6 or the steps of the method of preparing a healing abutment according to any one of claims 7 to 9.