A healing base and construction method, preparation method, computer readable storage medium, and device

Abstract

The present invention provides a healing abutment and a construction method, a preparation method, a computer-readable storage medium, and a device. The healing abutment is provided with a healing cap and a connection part for connecting an implant from top to bottom, and the healing cap is provided with a regeneration section, a subgingival section, and a gingival margin section from the proximal connection end to the distal connection end; the height of the regeneration section is 2.2 to 2.8 mm, and the shape is a shape of 0.8 to 1.2 mm inward from the same position of the original natural tooth on the tooth to be implanted; the subgingival section is an area from the gingival plane to 0.3 to 0.7 mm below the gingival plane, and the shape is a shape of 0.2 to 0.6 mm inward from the same position of the original natural tooth on the tooth to be implanted; the gingival margin section is an area 0.8 to 1.2 mm above the subgingival section, and the shape is a shape of the same position of the original natural tooth on the tooth to be implanted. The present invention can close the alveolar socket, avoid the exposure of the internal bone replacement material and infection, and has a supporting effect on the original gums, and can obtain an ideal gum shape.

Description

Technical Field

[0001] The present invention belongs to the technical field of implant accessories, and in particular relates to a healing abutment and a construction method, a preparation method, a computer-readable storage medium, and a device. Background Art

[0002] In recent years, dental implants have become the preferred treatment option for patients with edentulous teeth due to their extremely high success rate (>95%). According to incomplete statistics, more than 2.5 million implants were implanted in Chinese patients in 2019, and the number of implants implanted in Chinese patients has maintained an average annual growth rate of more than 30% in recent years.

[0003] In the early days of implant technology, all implants needed to heal for 6 months under the gingival mucosa before they could be functionally loaded. With the advancement and development of implant surgery concepts, the use of implant healing abutments for transmucosal healing has become the mainstream clinical technology. The use of implant healing abutments can avoid secondary surgery, reduce patient trauma and reduce treatment costs.

[0004] At present, the mainstream commercial implant healing abutments are all prefabricated circular titanium alloy shapes. After conventional implant surgery, the gingival contour is round, which is significantly different from the round triangle shape of the denture. Therefore, additional temporary dentures are often required to shape the gingival shape to obtain a more ideal gingival shape. On the other hand, with the continuous advancement of implant technology, the clinical use of immediate implantation, that is, the technology of implanting implants immediately after tooth extraction, is becoming more and more widely used in clinical practice, which also puts forward personalized requirements for implant healing abutments. During immediate implantation, the implant healing abutment is usually required to close the alveolar socket to avoid exposure of the internal bone replacement material and infection. In addition, the implant healing abutment is also required to provide certain support to the original gums. Summary of the invention

[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a healing abutment and construction method, preparation method, computer-readable storage medium, and device. The present invention can seal the alveolar socket, prevent the internal bone replacement material from being exposed and infected, and has a supporting effect on the original gums, so as to obtain an ideal gum shape.

[0006] To achieve the above-mentioned and other related purposes, the present invention provides a healing abutment in a first aspect, which is provided with a healing cap and a connection portion for connecting an implant in sequence from top to bottom, wherein the healing cap is provided with a regeneration section, a subgingival section and a gingival margin section in sequence from a proximal connection portion end to a distal connection portion end;

[0007] The height of the regenerated section is 2.2 to 2.8 mm, and the shape of the regenerated section is the shape of the original natural tooth at the same position on the implant site, which is retracted 0.8 to 1.2 mm;

[0008] The subgingival section is the area from the gingival plane to 0.3 to 0.7 mm below the gingival plane, and the shape of the subgingival section is the shape of the original natural tooth at the same position on the implant site, which is 0.2 to 0.6 mm inward;

[0009] The gingival margin section is a region 0.8 to 1.2 mm above the subgingival section, and the shape of the gingival margin section is the shape of the original natural tooth at the same position on the tooth to be implanted.

[0010] The gingival plane is the plane that is flush with the gums.

[0011] Preferably, it also includes at least one of the following technical features:

[0012] 1) The upper edge of the subgingival section is configured so that when the healing abutment is installed in the tooth to be implanted, the upper edge of the subgingival section can be flush with the periodontal gingiva at the tooth to be implanted;

[0013] 2) A mounting hole is provided on the end surface of the distal implant of the gingival margin segment;

[0014] 3) Select one of the following connection methods:

[0015] Connection method 1: the healing cap and the connection part are integrated;

[0016] Connection method 2: the healing cap and the connecting part are detachably connected;

[0017] Connection mode three: the regeneration section is provided with a first regeneration unit and a second regeneration unit in sequence from the proximal connection end to the distal connection end; the first regeneration unit and the second regeneration unit are detachably connected, and the first regeneration unit and the connection part are integrated;

[0018] 4) The material of the healing base includes polyetheretherketone and titanium monoxide, or polyetheretherketone and hydroxyapatite. i4 G or i2 G.

[0019] More preferably, it also includes at least one of the following technical features:

[0020] 31) In the first connection mode of feature 3), the connection portion is provided with a first fixing unit and a first threaded section for connecting the implant in sequence from the proximal healing cap end to the distal healing cap end;

[0021] 32) In the second connection mode of feature 3), the connection portion is provided with a first threaded section for connecting the implant, a first fixing unit and a second threaded section for connecting the healing cap in sequence from the distal healing cap end to the proximal healing cap end, and the bottom of the healing cap is provided with a groove with threads, and the threads of the groove match the threads of the second threaded section;

[0022] 33) In the third connection mode of feature 3), the first regeneration unit is provided with a first regeneration thread segment, the bottom of the second regeneration unit is provided with a groove with a thread, the thread of the groove matches the thread of the first regeneration thread segment, and the connection part is provided with a first fixing unit and a first thread segment for connecting the implant in sequence from the proximal healing cap end to the distal healing cap end;

[0023] 34) In the connection mode 3 of feature 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;

[0024] 41) The mass ratio of polyetheretherketone to titanium monoxide is 80:20 to 75:25; the mass ratio of polyetheretherketone to hydroxyapatite is 2:1 to 3:1.

[0025] The second aspect of the present invention provides a method for constructing the above-mentioned healing abutment model, comprising the following steps:

[0026] 1) Construct the upper and lower jaw models of the patient;

[0027] 2) simulating tooth extraction on the upper and lower jaw models and simulating the placement of implants;

[0028] 3) Construct a gingival margin segment model based on the outer surface of the natural tooth in the area from the gingival plane to 0.8 to 1.2 mm above the gingival plane;

[0029] Constructing a subgingival segment model according to the shape of the natural tooth outer surface retracted 0.2 to 0.6 mm in the area from the gingival plane to 0.3 to 0.7 mm below the gingival plane;

[0030] The regeneration segment model was constructed based on the shape of the natural tooth outer surface in the area 2.2 to 2.8 mm below the subgingival segment, where the outer surface was retracted 0.8 to 1.2 mm, thereby obtaining the initial healing cap model;

[0031] 4) constructing a connection model below the initial healing cap model, wherein the connection model matches the implant, thereby obtaining a healing abutment model.

[0032] Preferably, it also includes at least one of the following technical features:

[0033] 1) In step 1), the upper and lower jaw models of the patient are constructed from CT data;

[0034] 2) In step 3), a mounting hole is constructed on the end surface of the distal implant of the gingival margin segment model;

[0035] 3) Construct one of the following connection methods:

[0036] Connection method 1: constructing the connection part model and the initial healing cap model as an integrated whole;

[0037] Connection method 2: The connection part model and the initial healing cap model are detachably connected;

[0038] Connection method three: The regeneration section model is provided with a first regeneration unit model and a second regeneration unit model in sequence 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.

[0039] More preferably, feature 3) further includes at least one of the following technical features:

[0040] 31) In the first connection mode, the connection part model is constructed, and a first fixing unit model and a first thread segment model for connecting the implant are sequentially provided from the proximal initial healing cap model end to the distal initial healing cap model end;

[0041] 32) In the second connection mode, the connection part model is constructed to be provided with a first thread segment model for connecting the implant, a first fixing unit model and a second thread segment model for connecting the initial healing cap model in sequence from the distal healing cap model end to the proximal healing cap model end, and a groove with a thread is constructed at the bottom of the initial healing cap model, and the thread of the groove matches the thread of the second thread segment model;

[0042] 33) In connection method one, the first regeneration unit model is constructed with a first regeneration thread segment, the bottom of the second regeneration unit model is provided with a groove with a thread, the thread of the groove matches the thread of the first regeneration thread segment model, and the connection part model is provided with a first fixing unit model and a first thread segment model for connecting the implant in sequence from the proximal healing cap model end to the distal healing cap model end.

[0043] A third aspect of the present invention provides a method for preparing the above-mentioned healing abutment, the preparation method comprising: constructing a healing abutment model using the above-mentioned method for constructing a healing abutment model, and preparing the healing abutment.

[0044] Preferably, the healing abutment is prepared by 3D printing, and the raw materials for 3D printing include polyetheretherketone and titanium monoxide, or polyetheretherketone and hydroxyapatite.

[0045] More preferably, the mass ratio of polyetheretherketone to titanium monoxide is 80:20-75:25, such as 80:20-70:20 or 70:20-75:25; the mass ratio of polyetheretherketone to hydroxyapatite is 2:1-3:1, such as 2:1-2.5:1 or 2.5:1-3:1.

[0046] A fourth aspect of the present invention provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements 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.

[0047] The computer-readable storage medium, as can be understood by ordinary technicians in this field, can be implemented by hardware related to the computer program. The aforementioned computer program can be stored in a computer-readable storage medium. When the program is executed, the execution includes the steps of the aforementioned method embodiments; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk and other media that can store program codes.

[0048] The fifth aspect of the present invention provides a device, comprising: a processor and a memory, wherein the memory is used to store a computer program, and the processor is used to execute the computer program stored in the memory so that the device performs 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.

[0049] As mentioned above, the above technical solution has the following beneficial effects:

[0050] 1) The present invention can seal the alveolar socket, avoid exposure of the internal bone replacement material and infection, and has a supporting effect on the original gums, thereby obtaining an ideal gum shape.

[0051] 2) The material of the healing base of the present invention includes polyetheretherketone and titanium monoxide, or polyetheretherketone and hydroxyapatite, which can improve the strength of the healing base, improve the polishability of the simple polyetheretherketone healing cap, reduce plaque accumulation, and significantly improve the biological compatibility of the material surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 Schematic diagram of the healing abutment structure showing connection method one.

[0053] Figure 2 Schematic diagram of the healing abutment structure showing connection method three.

[0054] Figure 3 This is a schematic diagram showing the structure of the healing abutment when it is in use with connection method three.

[0055] Figure 4 Exploded view showing the use of the healing abutment for connection method three.

[0056] Figure 5 Shown is a schematic diagram of the structure of the healing abutment when used in the mouth.

[0057] Figure 6Shown is a schematic diagram of the Healing Abutment in use in the mouth.

[0058] Figure 7 Image showing the Medraw software window display for importing patient DICOM data.

[0059] Figure 8 Displayed as a reconstructed 3D model.

[0060] Fig. 9 Shown is a diagram simulating the process of extracting a tooth.

[0061] Fig.10 Shown is a simulated implant placement diagram.

[0062] Fig.11 Shown is an image of a designed healing abutment.

[0063] Fig.12 MTT was used to detect the proliferation ability of MC3T3-E1 on PEEK and PEEK / TiO.

[0064] Fig.13 Laser confocal imaging of MC3T3-E1 on PEEK and PEEK / TiO surfaces.

[0065] Reference numerals

[0066] 1 Healing Cap

[0067] 11 Regeneration section

[0068] 111 First regeneration unit

[0069] 1111 First regenerated thread segment

[0070] 112 Second regeneration unit

[0071] 1121 Groove

[0072] 12 Subgingival segment

[0073] 13 Gingival margin

[0074] 14 Mounting holes

[0075] 2 Connection

[0076] 21 First fixed unit

[0077] 22 First thread segment

[0078] 3 Implants DETAILED DESCRIPTION

[0079] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0080] See also Figures 1 to 13 . It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings in this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0081] A healing abutment, such as Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, a healing cap 1 and a connection portion 2 for connecting an implant 3 are provided in sequence from top to bottom, and 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 connection end to a distal connection end;

[0082] The height of the regeneration section 11 is 2.2 to 2.8 mm, and the shape of the regeneration section 11 is a shape that is 0.8 to 1.2 mm inward of the original natural tooth at the same position on the implant site.

[0083] The subgingival section 12 is the area from the gingival plane to 0.3 to 0.7 mm below the gingival plane, and the shape of the subgingival section 12 is the shape of the original natural tooth at the same position on the implant site, which is 0.2 to 0.6 mm inward.

[0084] The gingival margin section 13 is a region 0.8 to 1.2 mm above the subgingival section 12 , and the shape of the gingival margin section 13 is the same shape as the original natural tooth at the implant site.

[0085] The height of the regeneration section 11 is 2.2-2.8 mm, and the shape of the regeneration section 11 is 0.8-1.2 mm inward of the original natural tooth at the implant site, so as to leave enough space for blood clots, bone graft materials or soft tissue transplant materials.

[0086] The subgingival section 12 is an area from the gingival plane to 0.3 to 0.7 mm below the gingival plane. The shape of the subgingival section 12 is a shape of the original natural tooth at the same position on the implant site, which is retracted 0.2 to 0.6 mm inward, so as to retain the soft tissue thickness as much as possible.

[0087] The gingival margin section 13 is the area 0.8 to 1.2 mm above the subgingival section 12. The shape of the gingival margin section 13 is the same shape as the original natural tooth at the implant site to ensure the complete closure of the alveolar socket and prevent food and plaque from entering the implant area.

[0088] In a preferred embodiment, the upper edge of the subgingival segment 12 is configured so that when the healing abutment is installed in the tooth implant site, the upper edge of the subgingival segment 12 can be flush with the periodontal gingiva at the tooth implant site.

[0089] In a preferred embodiment, a mounting hole 14 is provided on the end surface of the gingival margin segment 13 distal to the implant.

[0090] In a preferred embodiment, one of the following connection modes is selected:

[0091] Connection method 1: the healing cap 1 and the connection part 2 are integrated.

[0092] Connection method two: the healing cap 1 and the connecting part 2 are detachably connected.

[0093] Connection method three: the regeneration section 11 is provided with a first regeneration unit 111 and a second regeneration unit 112 in sequence from the proximal connection end to the distal 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.

[0094] like Figure 1 As shown, in the first connection mode, the connection portion 2 is provided with a first fixing unit 21 and a first threaded section 22 for connecting the implant in sequence from the proximal healing cap end to the distal healing cap end.

[0095] In the second connection method, the connecting part 2 is provided with a first threaded segment 22 for connecting the implant, a first fixing unit 21 and a second threaded segment for connecting the healing cap 1 in sequence from the distal healing cap end to the proximal healing cap end, and a groove with a thread is provided at the bottom of the healing cap 1, and the thread of the groove matches the thread of the second threaded segment.

[0096] like Figure 2As shown, in the third connection mode, the first regeneration unit 111 is provided with a first regeneration thread segment 1111, and the bottom of the second regeneration unit 112 is provided with a groove 1121 with a thread, and the thread of the groove 1121 matches the thread of the first regeneration thread segment 1111, and the connecting part 2 is provided with a first fixing unit 21 and a first thread segment 22 for connecting the implant in sequence from the proximal healing cap end to the distal healing cap end. When the healing abutment is used, Figure 3 and Figure 4 As shown, the healing abutment is connected to the implant 3 via the first regeneration thread segment 1111 , the groove 1121 and the first thread segment 22 .

[0097] In a preferred embodiment, 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.

[0098] Example 1

[0099] A healing abutment, such as Figure 1 As shown, it comprises a healing cap 1 and a connecting portion 2 for connecting an implant 3, wherein the healing cap 1 and the connecting portion 2 are integrated; the healing cap 1 is provided with a regeneration segment 11, a subgingival segment 12 and a gingival margin segment 13 in sequence from the proximal connecting portion end to the distal connecting portion end;

[0100] The height of the regeneration section 11 is 1.8 to 2.2 mm, and the shape of the regeneration section 11 is a shape that is 0.8 to 1.2 mm inward of the original natural tooth at the same position on the implant site;

[0101] The subgingival section 12 is the area from the gingival plane to 0.3 to 0.7 mm below the gingival plane, and the shape of the subgingival section 12 is the shape of the original natural tooth at the same position on the implant site, which is 0.2 to 0.6 mm inward.

[0102] The gingival margin section 13 is a region 0.8 to 1.2 mm above the subgingival section 12 , and the shape of the gingival margin section 13 is the same shape as the original natural tooth at the implant site.

[0103] The connection portion 2 is provided with a first fixing unit 21 and a first threaded section 22 for connecting the implant in sequence from the proximal healing cap end to the distal healing cap end.

[0104] The material of the healing base comprises polyetheretherketone and titanium monoxide. i4 G, the mass ratio of polyetheretherketone and titanium monoxide is 3: 1. The strength of the healing abutment is 90MPa. The material can improve the strength of the healing abutment, improve the polishability of the simple polyetheretherketone healing cap, and reduce plaque accumulation.

[0105] MTT assay: Detection of the proliferation ability of mouse osteoblast precursor cells (MC3T3-E1) on PEEK / TiO

[0106] Place PEEK and PEEK / TiO (mass ratio 3:1) sheets in a 12-well plate and add 4 ml of MC3T3-E1 cell suspension (2*10 4 Cells / ml) were evenly distributed on the surface of the material, and 4 parallels were set up in each group. After 1, 4, and 7 days of culture, CCK-8 reagent was added according to the instructions of the CCK-8 kit to detect the absorbance of each well at A450nm, and the cell proliferation was calculated according to the following formula: Proliferation rate = A experimental well / A control well. The results obtained are as follows Fig.12 As shown in the figure, compared with PEEK, the proliferation ability of PEEK / TiO in the present invention is significantly increased.

[0107] Laser confocal microscopy: testing biocompatibility

[0108] Place PEEK and PEEK / TiO (mass ratio 3:1) sheets in a 12-well plate and add 4 ml of MC3T3-E1 cell suspension (2*10 4 Cells / ml) were evenly distributed on the surface of the material, with 4 parallels in each group. After 7 days of culture, the culture medium was discarded, 4% paraformaldehyde was added to fix at room temperature for 30 minutes, PBS was washed 3 times, 5uM Dil fluorescent probe was added for staining for 5 minutes, and then an appropriate amount of anti-fluorescence quencher was added to the surface of the material. After the treatment was completed, the surface of the material was observed using a laser confocal microscope and photographed. Fig.13 As shown in the figure, compared with PEEK, the PEEK / TiO of the present invention has better biocompatibility.

[0109] The following materials were used as the materials for the healing base, and the following performance test results were obtained by the same test method as above:

[0110] a) The materials of the healing base include polyetheretherketone and titanium monoxide. Polyetheretherketone is i4 G, the mass ratio of polyetheretherketone and titanium monoxide is 4:1.

[0111] The strength of the healing base is 78 MPa. The material can improve the strength of the healing base, improve the polishability of the simple polyetheretherketone healing cap, and reduce plaque accumulation. The cell proliferation rate after 1 day of culture is 1.2%, the cell proliferation rate after 4 days of culture is 2.6%, and the cell proliferation rate after 7 days of culture is 6.1%.

[0112] b) The materials of the healing base include polyetheretherketone and titanium monoxide. Polyetheretherketone is i2 G, the mass ratio of polyetheretherketone and titanium monoxide is 3.5:1.

[0113] The strength of the healing base is 87 MPa. The material can improve the strength of the healing base, improve the polishability of the simple polyetheretherketone healing cap, and reduce plaque accumulation. The cell proliferation rate after 1 day of culture is 1.3%, the cell proliferation rate after 4 days of culture is 2.6%, and the cell proliferation rate after 7 days of culture is 7.1%.

[0114] c) The materials of the healing base include polyetheretherketone and hydroxyapatite. Polyetheretherketone is i2 G, the mass ratio of polyetheretherketone and hydroxyapatite is 2:1.

[0115] The strength of the healing base is 70 MPa. The material can improve the strength of the healing base, improve the polishability of the simple polyetheretherketone healing cap, and reduce plaque accumulation. The cell proliferation rate after 1 day of culture is 1.8%, the cell proliferation rate after 4 days of culture is 2.9%, and the cell proliferation rate after 7 days of culture is 7.4%.

[0116] d) The materials of the healing base include polyetheretherketone and hydroxyapatite. i4 G, the mass ratio of polyetheretherketone and hydroxyapatite is 3:1.

[0117] The strength of the healing base is 68 MPa. The material can improve the strength of the healing base, improve the polishability of the simple polyetheretherketone healing cap, and reduce plaque accumulation. The cell proliferation rate after 1 day of culture is 1.4%, the cell proliferation rate after 4 days of culture is 2.7%, and the cell proliferation rate after 7 days of culture is 6.5%.

[0118] e) The materials of the healing base include polyetheretherketone and hydroxyapatite. Polyetheretherketone is i4 G, the mass ratio of polyetheretherketone and hydroxyapatite is 2.5:1.

[0119] The strength of the healing base is 69 MPa. The material can improve the strength of the healing base, improve the polishability of the simple polyetheretherketone healing cap, and reduce plaque accumulation. The cell proliferation rate after 1 day of culture is 1.5%, the cell proliferation rate after 4 days of culture is 2.7%, and the cell proliferation rate after 7 days of culture is 6.8%.

[0120] Preparation method of healing abutment: Based on the appropriate threshold parameters of the patient's DICOM data, the patient's head model is reconstructed to simulate tooth extraction and implant placement, and an individualized healing abutment is designed according to the patient's tooth defect condition, and finally the physical object is printed with the help of 3D printing technology. In this way, different forms of healing abutments are designed according to the different tooth defect conditions of each patient, and the effect of replacing the traditional healing abutment is achieved. The preparation method comprises the following steps:

[0121] 1) Construct the upper and lower jaw models of the patient;

[0122] 11) If Figure 7 As shown, import the patient's DICOM data into Medraw software, adjust the appropriate window width and window level, and observe whether the patient's data is available. The patient's DICOM data is the patient's CBCT data.

[0123] 12) If Figure 8 As shown, the grayscale value of CBCT was adjusted until the alveolar bone surface was continuously and smoothly reconstructed into a three-dimensional model.

[0124] 2) simulating tooth extraction on the upper and lower jaw models and simulating the placement of implants;

[0125] 21) Fig. 9 As shown, the extraction of a tooth is simulated in the software.

[0126] 22) Fig.10 As shown, after the tooth is extracted, the placement of the implant is simulated according to the patient's tooth defect condition.

[0127] 3) constructing a gingival segment model based on the outer surface of the natural tooth in the area from the gingival plane to 0.8 to 1.2 mm above the gingival plane; constructing a subgingival segment model based on the shape of the natural tooth outer surface in the area from the gingival plane to 0.3 to 0.7 mm below the gingival plane, which is retracted 0.2 to 0.6 mm; constructing a regeneration segment model based on the shape of the natural tooth outer surface in the area 2.2 to 2.8 mm below the subgingival segment, which is retracted 0.8 to 1.2 mm, and constructing a mounting hole on the end face of the distal implant of the gingival segment model to obtain an initial healing cap model; simulating a connection part model that is integrated with the initial healing cap model and matches the implant, constructing a connection part model that is provided with a first fixing unit model and a first threaded segment model for connecting the implant in sequence from the proximal end of the initial healing cap model to the distal end of the initial healing cap model, thereby obtaining a healing abutment model;

[0128] like Fig.11 As shown, after the implant is placed, an individualized healing abutment is designed according to the shape of the remaining tooth defect;

[0129] 4) The completed personalized healing abutment model is exported as an STL file and sent to a 3D printing center for printing using 3D printing materials including polyetheretherketone and titanium monoxide.

[0130] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A healing abutment, characterized in that: A healing cap (1) and a connection portion (2) for connecting an implant (3) are provided in sequence from top to bottom, wherein 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 connection end to a distal connection 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 is 0.8-1.2 mm inward of the same position of the original natural tooth on the tooth to be implanted; The subgingival section (12) is an area from the gingival plane to 0.3-0.7 mm below the gingival plane, and the shape of the subgingival section (12) is a shape that is 0.2-0.6 mm inward of the same position of the original natural tooth on the implant site; The gingival margin section (13) is a region 0.8 to 1.2 mm above the subgingival section (12), and the shape of the gingival margin section (13) is the same shape as the original natural tooth at the same position on the implant site; The material of the healing base includes polyetheretherketone and titanium monoxide, and the mass ratio of the polyetheretherketone to titanium monoxide is 70:20; The connection method of the healing base is that the regeneration section (11) is provided with a first regeneration unit (111) and a second regeneration unit (112) in sequence from the proximal connection end to the distal 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; The first regeneration unit (111) is provided with a first regeneration thread segment (1111), and the bottom of the second regeneration unit (112) is provided with a groove (1121) with threads, and the threads of the groove (1121) match the threads of the first regeneration thread segment (1111).

2. The healing abutment according to claim 1, characterized in that Also includes at least one of the following technical features: 1) The upper edge of the subgingival section (12) is configured so that when the healing abutment is installed in the tooth to be implanted, the upper edge of the subgingival section (12) can be flush with the periodontal gingiva at the tooth to be implanted; 2) A mounting hole (14) is provided on the end surface of the gingival margin segment (13) distal to the implant.

3. The healing abutment according to claim 1, characterized in that Also includes at least one of the following technical features: 31) The connecting portion (2) is provided with a first fixing unit (21) and a first threaded section (22) for connecting the implant in sequence from the proximal healing cap end to the distal healing cap end; 32) 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 preparing a healing abutment according to any one of claims 1 to 3, characterized in that: The preparation method comprises: a method for constructing a healing abutment model to obtain a healing abutment model and prepare a healing abutment, and the method for constructing a healing abutment model comprises the following steps: 1) Construct the upper and lower jaw models of the patient; 2) simulating tooth extraction on the upper and lower jaw models and simulating the placement of implants; 3) Construct a gingival margin segment model based on 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 subgingival segment model based on the shape of the natural tooth outer surface retracted 0.2-0.6 mm in the area from the gingival plane to 0.3-0.7 mm below the gingival plane; The regeneration segment model was constructed based on the shape of the natural tooth outer surface in the area 2.2-2.8 mm below the subgingival segment, with the outer surface retracted 0.8-1.2 mm, so as to obtain the initial healing cap model; 4) constructing a connection model under the initial healing cap model, wherein the connection model matches the implant, thereby obtaining a healing abutment model; The healing base is prepared by 3D printing, wherein the raw materials for 3D printing include polyetheretherketone and titanium monoxide, and the mass ratio of the polyetheretherketone to the titanium monoxide is 70:20; The connection method of the model for constructing the healing abutment is that the regeneration segment model is provided with a first regeneration unit model and a second regeneration unit model in sequence from the proximal connection part model end to the distal 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; The first regeneration unit model is constructed with a first regeneration thread segment, and the bottom of the second regeneration unit model is provided with a groove with threads, and the threads of the groove match the threads of the first regeneration thread segment model.

5. The method for preparing a healing abutment according to claim 4, characterized in that: The method for constructing the healing abutment model further includes at least one of the following technical features: (1) In step 1), the upper and lower jaw models of the patient are constructed from CT data; (2) In step 3), a mounting hole is constructed on the end surface of the distal implant of the gingival margin model.

6. The method for preparing a healing abutment according to claim 4, characterized in that: The connection part model is provided with a first fixing unit model and a first thread segment model for connecting the implant in sequence from the proximal healing cap model end to the distal healing cap model end.

7. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the steps of the method for preparing a healing abutment according to any one of claims 4 to 6 are implemented.

8. A device for preparing a healing abutment, comprising: A processor and a memory, wherein the memory is used to store a computer program, and the processor is used to execute the computer program stored in the memory so that the device performs the steps of the method for preparing a healing abutment as described in any one of claims 4 to 6.

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