WO2019153573A1

WO2019153573A1 - Additive and subtractive composite processing and forming method for personalized dental implant abutment

Info

Publication number: WO2019153573A1
Application number: PCT/CN2018/087870
Authority: WO
Inventors: 刘睿诚; 张志霄; 邹善方; 吴利苹; 姚圳珠; 曾益伟
Original assignee: 成都优材科技有限公司
Priority date: 2018-02-08
Filing date: 2018-05-22
Publication date: 2019-08-15
Also published as: CN108309477B; CN108309477A

Abstract

An additive and subtractive composite processing and forming method for a personalized dental implant abutment, the additive and subtractive composite processing and forming method for a personalized dental implant abutment comprises the following steps: designing a personalized implant abutment: designing a personalized implant abutment according to medical case; data processing: designing cutting allowance for a part of the personalized implant abutment that needs to be cut, performing sectioning processing, which is required for additive manufacturing, on the abutment, and planning a cutting path for cutting the abutment; additive manufacturing: processing a semi-finished product of the abutment by means of additive manufacturing; subtractive manufacturing: cutting the semi-finished product of the abutment to manufacture the personalized implant abutment. The processing and forming method combines the advantages of additive manufacturing and subtractive manufacturing to achieve high efficiency and high precision for a personalized implant abutment, the method being suitable for cobalt-chromium alloys, titanium, titanium alloys and so on, and thus the range of available materials is wider.

Description

Composite processing method for increasing or decreasing material of personalized dental implant abutment

Technical field

The invention relates to the field of additive manufacturing, in particular to the field of additive manufacturing dental implants, in particular to a method for composite processing of augmented and reduced materials of personalized dental implant abutments.

Background technique

Dental implant surgery is currently the most effective repair method for tooth loss. The implant abutment is the structural part of the dental implant that is exposed to the oral cavity through the gum. The abutment is the connecting part between the implant and the superstructure. The personalized planting abutment is customized according to the shape of the patient's gums, and has a good anatomical shape and correction angle; the abutment can best match the mechanical structure of the implant body, fit the anatomy of the gum around the implant, and is simple to manufacture and high in precision for the patient. And the doctor brings great convenience and becomes the repairing trend of future implant dentures. Structurally, the implant abutment usually includes a repair joint portion, an implant joint portion, and an interface. The so-called repair joint portion refers to a portion of the implant abutment exposed to the oral cavity, and the crown is installed at the repair joint portion thereof. The implant connection portion refers to the portion of the implant that is hidden in the gum, and the implant connection portion is provided with an interface for connection with the implant.

Since cobalt-chromium alloys and titanium alloy materials have excellent mechanical properties in terms of strength, hardness, wear resistance, and toughness, they have become the most commonly used materials for individualized planting abutments.

At present, the commonly used dental metal implants are processed by mechanical cutting, and are cut on the basis of semi-finished abutments to obtain personalized abutments. However, this molding method takes a long time, has low utilization rate of raw materials, and is lacking in precision. At present, the precision of bur cutting can reach 60μm, and the accuracy and quality of the personalized dental implant abutment will be reduced due to the loss of the cutting bur. The cutting needle can not be formed in the cutting process, adjacent The local precision is not good, so that the abutment and the implant, the abutment and the upper restoration cannot be precisely fitted, which affects the accuracy and the overall quality of the planting and restoration. Moreover, in the cutting process of the semi-finished abutments, it is often the case that the semi-finished abutments cannot satisfy the individual abutment form. Therefore, the cutting manufacturing method is not suitable for high-performance, automatic and rapid production of personalized planting abutments.

3D printing is another name for additive manufacturing. It rebuilds the 3D digital model and uses the metal powder layer-by-layer principle to manufacture solid parts, making the entire manufacturing process truly intelligent and digital. Laser selective melting is the most widely used laser selective melting technology. It is a technology based on laser melting metal powder. It integrates laser technology, digital intelligent control technology, computer aided design analysis and rapid prototyping. It can directly manufacture metallurgical bonding. Metal parts with compact structure, good mechanical properties and high precision.

Among them, the laser selective melting technology has the advantages of high degree of individuality, simple process, short production cycle and high material utilization rate, which can meet the technical requirements of personalized, complicated and difficult oral repair, and at the same time make up for the deficiencies of the prior art. Then worry about the effects of cutting temperature. Therefore, laser selective melting has been applied more and more to the manufacture of oral prostheses, and has become an indispensable emerging technology for oral digital processing.

However, when the laser selection is melted in the processing of metal materials, due to the forming mechanism of the sudden heat and quenching, the thermal stress of the planting bracket is large during the processing, and it is easy to be deformed; after the support of the processing planting bracket is added for 3D printing, the post-processing of the parts is time consuming. And it is easy to affect the accuracy of the interface with the implant, so it is very difficult to directly process the individualized abutment with laser selective melting. Since the parts currently melted by laser selection usually require low precision, the edges of the parts after the one-time laser scanning have burrs and other uneven structures, which is not allowed in the dental implant abutment.

Summary of the invention

The technical problem to be solved by the invention is to provide a composite processing method for increasing and reducing materials of a personalized dental implant abutment, combining the advantages of the two methods of additive manufacturing and material reduction to realize the high efficiency and high individualized abutment. Precision.

The method for composite processing of augmenting and reducing materials of a personalized dental implant abutment disclosed by the invention comprises the following steps:

Design a personalized planting abutment: design a personalized planting abutment based on the case;

Data processing: Designing the cutting allowance for the part of the individualized abutment that needs to be machined, designing the semi-finished abutment, slicing the semi-finished abutment for the additive manufacturing, and planning the cutting of the semi-finished abutment Cutting path

Additive manufacturing: manufacturing semi-finished products by additive manufacturing;

Reduced material manufacturing: The individual planting abutments are manufactured by cutting the semi-finished products of the abutments.

Preferably, during data processing, the substrate is designed, and the personalized implanting abutment is disposed on the substrate;

When the additive is manufactured, the semi-finished base is processed by the additive on the substrate;

When the material is reduced, the semi-finished base on the substrate is cut by clamping the substrate;

After the material is reduced, the post-processing of the parts is performed to separate the individualized implanted abutments from the substrate to produce a personalized implanted base product.

Preferably, at least two personalized planting abutments are provided on the same substrate.

Preferably, in the data processing, the cutting allowance is designed on the implant connecting portion and the interface of the personalized planting abutment, and the semi-finished base station is designed;

When the material is reduced, the implant connection portion and the interface of the semi-finished base are cut.

Preferably, in the data processing, the repair connection portion of the personalized planting abutment is disposed close to the substrate, so that the implant connecting portion of the personalized planting abutment is away from the substrate.

Preferably, during data processing, the cutting allowance added to the implant connecting portion and the interface of the personalized planting abutment is 0.6-0.8 mm.

Preferably, during the data processing, by adjusting the relative positions of the substrate and the personalized planting abutment, it is ensured that the center axis of the interface of the personalized planting abutment in the cutting and clamping state is parallel to the Z axis of the cutting device.

Preferably, when the data is processed, a positioning platform is added on the substrate, and the positioning platform is provided with a positioning hole, and the positioning hole is matched with the positioning needle of the cutting device;

When the additive is manufactured, the positioning table is processed by the additive manufacturing on the substrate;

When the material is reduced, the positioning needle of the cutting device is inserted into the positioning table to determine the precise position of the semi-finished base on the substrate.

Preferably, the number of the positioning stations is three, and the three positioning platforms are arranged in a triangle.

Preferably, when the data is processed, the three positioning platforms are arranged in a right triangle;

When the substrate is in the cutting and clamping state, one of the right-angled sides of the right-angled triangle formed by the positioning table is parallel to the X-axis of the cutting device, and the other right-angled side is parallel to the Y-axis.

Preferably, a gap of 0.04-0.05 mm is left between the positioning hole of the positioning table and the positioning needle of the cutting device.

Preferably, when the data is processed, a support structure is added between the substrates on the personalized planting base;

At the time of additive manufacturing, the support structure is processed by additive manufacturing.

After the material is reduced, the parts are post-treated, and the individualized abutment finished products are manufactured after cutting, removing the support structure and grinding.

Preferably, the support structure is a small cross support, and the small cross support comprises two crisscross support bars.

Preferably, the length of the support bar of the small cross support is 0.6-0.9 mm, and the distance between adjacent small cross supports is 0.4-0.6 times of the length of the support bar.

Preferably, the material used for the personalized planting abutment is pure titanium, titanium alloy or cobalt chromium alloy.

Preferably, in the manufacture of the additive, the laser selective melting technique is used for the additive manufacturing, and the chessboard partition scanning strategy is adopted in the laser selective melting process.

Preferably, the thickness of each slice is 0.02-0.03 mm during the slicing process required for the additive manufacturing of the semi-finished base 6 .

Compared with the existing semi-finished abutment direct cutting method, the invention has the following beneficial effects:

(1) The design of the personalized abutment can be processed without any limitation of the shape of the semi-formed abutment, and the personalized abutment of any complicated shape can be processed;

(2) It can save more materials and has higher precision and mechanical properties;

(3) The semi-finished abutment that is added and processed according to the personalized design of the personalized planting abutment is easier to cut and can effectively improve the processing efficiency.

Compared with the existing additive manufacturing method, the invention has the following beneficial effects:

(1) The accuracy of individualized planting abutments can be effectively improved by the method of composite processing of additive and material reduction;

(2) It can effectively avoid the occurrence of uneven structures such as burrs on the edge of the personalized planting abutment.

In addition, the present invention is applicable to cobalt chromium alloys, titanium and titanium alloys, and the like, and a wider range of materials are available.

DRAWINGS

1 is a flow chart of one embodiment of a method for forming a composite material of a personalized dental implant abutment;

Figure 2 is a data processing layout diagram of composite processing of individual base augmentation and reduction materials;

Figure 3 is a schematic view of the personalized planting abutment after the composite processing of the increased and decreased materials;

Figure 4 is a schematic view of a small cross support.

LIST OF REFERENCE NUMERALS: No.1 positioning table 1, No.2 positioning table 2, No.3 positioning table 3, abutment implant connection part cutting allowance 4, abutment interface cutting allowance 5, semi-finished base table 6, substrate 7, repair The connecting portion 8, the implant connecting portion 9, and the interface 10.

Detailed ways

The invention is further illustrated below.

Design a personalized planting abutment: design a personalized planting abutment based on the case.

The existing personalized planting abutment can be used. The specific design method can adopt three-dimensional scanning, and the three-dimensional design based on the scanning result is designed to design a personalized planting abutment adapted to the case situation.

Data processing: Designing the cutting allowance for the part of the individualized abutment that needs to be machined, designing the semi-finished abutment 6, and processing the semi-finished abutment 6 for the additive manufacturing, and planning the semi-finished abutment 6 a cutting path for cutting;

The purpose of the data processing is to finally obtain two kinds of data suitable for both additive manufacturing and material reduction manufacturing. In short, the semi-finished base 6 is processed by additive manufacturing and the semi-finished base 6 is processed by the reduced material manufacturing. The data of the final product. Specifically, as described above, on the basis of the designed personalized abutment, the position requiring cutting and finishing is selected to increase the cutting allowance, the semi-finished base 6 is designed, and the semi-finished base 6 is sliced to obtain the additive manufacturing. The data of the semi-finished base 6 can be processed in the design process, and the fine-grain manufacturing can be considered to fine-tune the semi-finished base 6 . Then, the cutting tool path from the semi-finished base 6 to the finished product is planned, and the data of the finished personalized planting abutment from the semi-finished base 6 is obtained. In actual design, the cutting efficiency, precision and consumables can also be reversed. The shape and structure of the semi-finished base 6 are fine-tuned.

In the data processing, data on the manufacture of the semi-finished base 6 by the additive has been obtained, and the semi-finished base 6 can be produced by the additive by using the data.

In the data processing, data for processing the semi-finished base 6 into a final product by means of material reduction is also obtained, and with these data, the semi-finished base 6 can be cut into a designed individual planting abutment.

Due to the small size of the individual implanted abutments and the high surface precision requirements, it is difficult for the cutting equipment to clamp well during the cutting process, which affects the normal processing of the cutting process. To this end, in the technical aspects of the above scheme, the following improvements have been made:

During data processing, the substrate 7 is designed, and the personalized implanting abutment is disposed on the substrate 7;

When the additive is manufactured, the semi-finished base 6 is processed by the additive on the substrate;

When the material is reduced, the semi-finished base 6 on the substrate 7 is cut by the clamping substrate 7;

After the material is reduced, the post-processing of the parts is performed, and the individualized implant abutments after cutting are separated from the substrate 7 to produce a personalized planting base product.

The personalized planting abutment is disposed on the substrate 7, which not only facilitates the clamping of the material cutting, but also helps maintain the stability during the additive manufacturing process, but after the substrate 7 is set, an additional part post-processing step is provided. The personalized planting abutment is separated from the substrate 7 to obtain a finished product. After the substrate 7 is set, the personalized planting abutments that can be placed on the same substrate 7 are not limited to one, but two or more personalized planting abutments can be placed, and these personalized planting abutments can simultaneously Processing, saving a lot of manpower, reducing human error, and improving the processing efficiency of personalized planting abutments.

In the data processing, the semi-finished abutment 6 can be designed by adding the cutting allowance to the original design of the original planting abutment. After the additive is manufactured, the whole cutting is performed, so that the personalized planting abutment processed has the highest precision. However, relatively speaking, processing is more difficult and less efficient. In fact, the personalized planting abutment and the repairing connecting portion 8 are used for installing the crown, the precision requirement is relatively low, the precision of the additive manufacturing can meet the requirements, and the implant connecting portion 9 and the interface 10 are directly related to Gingival contact and docking with the implant require higher surface accuracy, and additive manufacturing alone may not meet the accuracy requirements. For this reason, in the data processing, the cutting allowance is designed on the implant connecting portion 9 and the interface 10 of the personalized planting abutment, and the semi-finished base 6 is designed; when the material is reduced, the implant connecting portion 9 of the semi-finished base 6 is manufactured. And the interface 10 performs cutting processing. Only the implant connection portion 9 and the interface 10, which require high surface precision, increase the cutting allowance and perform cutting processing, which not only can effectively save materials, but also can reduce the processing difficulty and improve the processing efficiency. As shown in Fig. 2, the cutting allowance 4 of the abutment implant connecting portion 9 and the cutting allowance 5 of the abutment interface 10 are preferably 0.6-0.8 mm.

In the case where the substrate 7 is provided, the personalized planting abutment is placed on the substrate 7, and the personalized planting abutment must have a part directly or indirectly connected to the substrate 7, in order to facilitate the implant connecting portion of the semi-finished base 6 9 and the cutting process of the interface 10, the repair connection portion 8 of the personalized planting abutment is placed close to the substrate 7, so that the implant connecting portion 9 of the personalized planting abutment is away from the substrate 7. In other words, the personalized planting abutment is placed upside down on the substrate 7, so that the implant connecting portion 9 and the interface 10 portion of the personalized planting abutment can be better precision cut to obtain a higher surface. Precision.

Further, in order to perform the cutting process better, in the data processing, it is ensured that the center axis of the interface of the individualized planting base of the substrate 7 in the cutting and clamping state is parallel to the Z axis of the cutting apparatus. The cutting equipment usually has three axial directions of X, Y and Z. The X and Y axes are located on the horizontal plane and perpendicular to each other, and the Z axis is perpendicular to the horizontal plane. The angle between the substrate 7 and the central axis of the interface is adjusted by data processing. The central axis of the interface is parallel to the Z axis of the cutting device. For example, when the substrate 7 is perpendicular to the Z axis of the cutting device during cutting and clamping, then the center axis of the interface is perpendicular to the substrate 7, so that the center axis of the interface is parallel to the Z axis during cutting.

The substrate 7 can not only provide a clamping function in cutting, but also realize a positioning effect. In order to realize positioning, in the data processing, a positioning platform is added on the substrate 7, and the positioning platform is provided with a positioning hole, and the positioning is performed. The hole is matched with the positioning bur of the cutting device; when the additive is manufactured, the positioning table is manufactured by the additive manufacturing on the substrate 7; when the material is reduced, the positioning needle of the cutting device is inserted into the positioning table to determine The precise position of the semi-finished base 6 on the substrate 7. The positioning hole of the positioning table is adapted to the positioning needle of the precision cutting, and the gap of 0.04-0.05 mm is usually left on the basis of the position of the locating needle into the positioning table.

The number of positioning stations may be one or more, but in order to enable a better positioning effect, the number of positioning platforms is three, and the three positioning platforms are arranged in a triangle to ensure accurate positioning on the horizontal plane. Sex, and there will be no reverse installation problems like the two positioning stations. Furthermore, the role of the positioning table is to locate the X-axis direction and the Y-axis direction. If the two directions are clearly positioned, it is more conducive to the design and control of the cutting process. The specific method is three positioning tables during data processing. Arranged in a right-angled triangle; when the substrate 7 is in the cutting and clamping state, one of the right-angled sides of the right-angled triangle formed by the positioning table is parallel to the X-axis of the cutting device, and the other right-angled side is parallel to the Y-axis. For example, as shown in FIG. 2, the substrate 7 is respectively provided with a positioning platform 1, a positioning platform 2, and a positioning platform 3, and the length ratio of the two right sides of the right triangle formed by the three positioning tables is set to 3: 4, wherein the right angle side formed by the second positioning table 2 and the third positioning table 3 is a long side, and along the X axis direction, the right angle side formed by the first positioning table 1 and the second positioning table 2 is a short side along the Y axis The orientation can ensure the positioning of the substrate 7 on the X-axis and the Y-axis, determine the precise position of the components on the substrate 7, and combine the positioning of the central axis of the interface with the Z-axis to achieve an all-round positioning effect. Provides effective protection for cutting.

In the case where the substrate 7 is provided, the personalized planting abutment should not be directly connected to the substrate 7, and the direct connection is not convenient for the separation of the two, and may affect the surface quality of the personalized implanted abutment support surface. Therefore, it is preferable to add a support structure between the substrate 7 in the personalized planting base. The support structure can adopt various structures. In the embodiment shown in FIG. 4, in the data processing, the implant base and the substrate 7 are personalized. A small cross support is provided, the small cross support comprising two crisscross support bars. The length of the small cross support is preferably 0.6-0.9 mm, and the distance between the adjacent small cross supports is 0.4-0.6 times the length of the small cross support, where the separation distance refers to the closest between the two adjacent small cross supports. The distance of the part; after the material is manufactured, the post-processing of the parts, wire cutting, removal of the small cross support and grinding, to produce a personalized planting abutment finished product. The small cross support is relatively easy to remove and reduces the post-treatment of the part. It should be noted that the support structure cannot be added to the internal circular hole and step area of the personalized planting abutment to prevent the support structure from affecting the surface precision.

There are many types of additive manufacturing, such as laser stereo printing technology based on polymer polymerization, polymer printing technology, micro-stereo printing, etc. Selective laser sintering technology based on sintering and melting, laser selection Melting technology, electron beam melting technology, etc. The combination of the corresponding materials can be used to print a personalized implant abutment. However, as a preferred embodiment, the present invention employs laser selective melting technology for additive manufacturing, and employs a checkerboard partition scanning strategy, as embodied by:

In the data processing, after the semi-finished base 6 is designed, the semi-finished base 6 is subjected to additive manufacturing, and the thickness of each layer is 0.02-0.03 mm.

At the time of additive manufacturing, the metal powder of each cross-sectional area of the substrate 7 is melt-molded by laser scanning of a 3D printing apparatus by a laser-selected molten metal metal 3D printing apparatus using micron-sized spherical metal powder as a material, and then The layers are superimposed as metal parts; the individualized planting abutments, support structures and positioning tables are machined, and the entire substrate 7 is removed for use.

Wherein the laser scanning melting process uses a checkerboard partition scanning, which divides the section of the part into a plurality of squares, and the laser performs an "S"-shaped scanning in each square. The order in which the laser completes each square fill is random, that is, the temperature field changes for each section are random. This strategy reduces the thermal stress of the abutment forming process, so that the post-processing part of the part does not need to be subjected to stress relief annealing, which simplifies the molding process.

As shown in Figure 1, a flow chart of a preferred embodiment of the present invention is shown.

The specific process is as follows:

Designing a personalized planting abutment: Using a conventional dental digital processing method, a personalized planting abutment is designed according to the case.

Data processing: processing the data of the personalized planting abutment, and finally obtaining two kinds of data suitable for both additive manufacturing and material reduction manufacturing;

The data processing process includes: positioning of the personalized abutment, addition of the support structure, adding the positioning table, designing the cutting allowance for the abutment implant connecting portion 9 and the interface 10, manufacturing the slice, and reducing the material to manufacture the cutting path plan. .

Additive manufacturing: The individualized abutment, support structure and positioning table are processed, and the whole molded substrate 7 is taken out for use.

Reduced material manufacturing: The substrate 7 finished by laser additive manufacturing is placed on the fixture of the precision cutting equipment to complete the precision cutting process. The material reduction manufacturing steps include needle positioning and precision machining.

Post-treatment of parts: After wire cutting, de-supporting and sanding, a personalized planting abutment is obtained.

Claims

A method for composite processing of augmented or reduced material of a personalized dental implant abutment, comprising the steps of:

Design a personalized planting abutment: design a personalized planting abutment based on the case;

Data processing: designing the cutting allowance for the part of the individualized abutment that needs to be machined, designing the semi-finished abutment (6), and slicing the semi-finished abutment (6) for the additive manufacturing, and planning the out a semi-finished abutment (6) for cutting the cutting path;

Additive manufacturing: manufacturing semi-finished products by additive manufacturing;

Reduced material manufacturing: The individual planting abutments are manufactured by cutting the semi-finished products of the abutments.
The method for composite processing of augmented or reduced material of a personalized dental implant abutment according to claim 1, wherein:

During data processing, the substrate (7) is designed to be placed on the substrate (7);

When the additive is manufactured, the semi-finished base (6) is processed by the additive on the substrate;

When the material is reduced, the semi-finished base (6) on the substrate (7) is cut by clamping the substrate (7);

After the material is reduced, the post-processing of the parts is performed, and the individualized implant abutments after cutting are separated from the substrate (7) to produce a personalized planting base product.
The method for composite forming and forming of a personalized dental implant abutment according to claim 2, characterized in that at least two individual implanted abutments are arranged on the same substrate (7).
The method for composite processing of augmented or reduced material of a personalized dental implant abutment according to claim 2, wherein:

In the data processing, the cutting allowance is designed in the implant connecting part (9) and the interface (10) of the personalized planting abutment, and the semi-finished abutment (6) is designed;

When the material is reduced, the implant connecting portion (9) and the interface (10) of the semi-finished base (6) are cut.
A method for composite processing of augmented or reduced material of a personalized dental implant abutment according to claim 4, wherein:

In the data processing, the repair connection portion (8) of the personalized planting abutment is placed close to the substrate (7), so that the implant connecting portion (9) of the personalized planting abutment is away from the substrate (7).
A method for composite processing of augmented or reduced material of a personalized dental implant abutment according to claim 4, wherein:

In the data processing, the cutting allowance added to the implant connecting portion (9) and the interface (10) of the personalized planting abutment is 0.6-0.8 mm.
The method for composite processing of augmented or reduced material of a personalized dental implant abutment according to claim 2, wherein:

During data processing, by adjusting the relative position of the substrate (7) and the individual implanted abutment, it is ensured that the central axis of the interface of the individual implanted abutment in the cutting and clamping state of the substrate (7) is parallel to the Z axis of the cutting device.
The method for composite processing of augmented or reduced material of a personalized dental implant abutment according to claim 2 or 7, wherein:

During data processing, a positioning table is added on the substrate (7), and the positioning table is provided with a positioning hole, and the positioning hole is matched with the positioning needle of the cutting device;

When the additive is manufactured, the positioning table is processed by the additive manufacturing on the substrate (7);

When the material is reduced, the positioning needle of the cutting device is inserted into the positioning table to determine the precise position of the upper semi-finished base (6) of the substrate (7).
The method for composite forming and shaping of a personalized dental implant abutment according to claim 8, wherein the number of the positioning platforms is three, and the three positioning platforms are arranged in a triangle.
A method for composite processing of augmented or reduced material of a personalized dental implant abutment according to claim 9, wherein:

During data processing, the three positioning stages are arranged in a right triangle;

When the substrate (7) is in the cutting and clamping state, one of the right-angled sides of the right-angled triangle formed by the positioning table is parallel to the X-axis of the cutting device, and the other right-angled side is parallel to the Y-axis.
The composite processing method for augmenting or reducing material of a personalized dental implant abutment according to claim 8, wherein a gap of 0.04-0.05 mm is left between the positioning hole of the positioning table and the positioning needle of the cutting device.
The method for composite processing of augmented or reduced material of a personalized dental implant abutment according to claim 2, wherein: in the data processing, a support structure is added between the substrates on the individual implanted abutments;

When the additive is manufactured, the support structure is processed by additive manufacturing;

After the material is reduced, the parts are post-treated, and the individualized abutment finished products are manufactured after cutting, removing the support structure and grinding.
The method of forming and processing a composite material for a personalized dental implant abutment according to claim 12, wherein the support structure is a small cross support, and the small cross support comprises two crisscross support bars.
The composite processing method for augmenting and reducing materials of a personalized dental implant abutment according to claim 13, wherein the length of the support bar of the small cross support is 0.6-0.9 mm, and the interval between adjacent small cross supports is The distance is 0.4-0.6 times the length of the support bar.
The method according to claim 1, wherein the material for the personalized planting abutment is pure titanium, titanium alloy or cobalt chromium alloy.
The method for composite processing of augmented or reduced material of a personalized dental implant abutment according to claim 1, wherein: in the manufacture of the additive, the laser selective melting technique is used for additive manufacturing, and the board partition is used in the laser selective melting process. Scanning strategy.
The composite processing method for augmenting or reducing material of a personalized dental implant abutment according to claim 1, wherein in the slicing process required for additive manufacturing of the semi-finished base 6, the thickness of each slice is 0.02. -0.03mm.