CN115645093A - Digital planting repair method and device and computer readable storage medium - Google Patents

Abstract

The application discloses a digital planting and repairing method, which comprises the following steps: scanning the implant impression to obtain the oral scanning data of the patient; importing the oral scanning data of the patient into design software to generate an oral digital model; calling data of a database according to the model of the substitute to generate a digital model of the personalized base station; the method comprises the following steps of editing a crown digital model based on the personalized abutment digital model, matching different adjustment parameters of the crown digital model according to different implantation and repair modes to match the crown digital model with the personalized abutment digital model, wherein the adjustment parameters at least comprise: adhesive parameters, additional adhesive parameters, distance to edge line, smoothing distance, stitching radius, and stitching compensation spacing; and processing the personalized abutment digital model, the dental crown digital model and the oral cavity digital model to form the personalized abutment, the dental crown and the oral cavity model. Has the advantages of simplifying production process, improving production efficiency and saving production cost.

Description

A digital implant restoration method, device and computer-readable storage medium

technical field

The present application relates to the technical field of dental equipment manufacturing, and more specifically, relates to a digital implant restoration method, device and computer-readable storage medium.

Background technique

Dental implants are also called artificial dental implants. They are not really planted with natural teeth, but through medical methods, pure titanium metal with high compatibility with human bone is precisely designed and manufactured into cylinders or other shapes similar to tooth roots. , implanted in the alveolar bone of the edentulous area by a minor surgical operation, and after 1 to 3 months, when the artificial tooth root and the alveolar bone are tightly bonded, a porcelain crown is made on the artificial tooth root. Dental implants can achieve a restoration effect that is very similar to natural teeth in terms of function, structure, and aesthetics, and have become the preferred restoration method for more and more patients with missing teeth. Because it is not destructive, dental implants have been recognized by the stomatological profession as the preferred restoration method for missing teeth.

In the prior art, a dental implant includes an implant, an implant abutment, and an implant crown. on the planting platform. The whole dental implant composed of implant, implant abutment and implant crown can restore the missing teeth in the patient's oral cavity, thereby replacing the missing teeth to realize the beauty of the oral cavity and the function of chewing food.

The internal condition of each patient's mouth is different. Therefore, only by installing matching dental implants can a good restoration effect be achieved. damage. Therefore, before the implementation of dental implant surgery, it is necessary to pre-fabricate the corresponding implant, implant abutment and implant crown according to the internal condition of the patient's oral cavity.

For example, in the prior art, the model is made by pouring plaster, which requires the processes of bottom grinding, base addition, maxillary frame, abutment selection, and abutment grinding. It can be seen that the operation process steps are cumbersome, and the cross-departmental process needs to go through multiple steps, and the process takes a long time; the flow and vibration of the gypsum during the casting will cause the hidden danger of the replacement body to loosen and move, resulting in the deviation of the implant displacement, which will affect the quality of the implant. Implant restoration failed.

Therefore, the prior art needs to further optimize the production model.

Contents of the invention

The purpose of the present application is to provide a digital implant restoration method, device and computer-readable storage medium, which can improve the precision and production efficiency of the restoration crown on the upper part of the implant.

In order to achieve the above object, the technical scheme adopted by the application is:

The application provides a digital implant repair method, wherein the method includes the following steps:

Scan the implant impression to obtain the patient's oral scan data, in which the shape of the patient's mouth is pre-formed on the implant impression;

Import the patient's oral scan data into the design software to generate a plaster scan digital model;

According to the model of the substitute on the implant impression, the data in the database in the design software is retrieved and adjusted to generate a personalized digital model of the abutment;

The digital model of the crown is edited based on the digital model of the personalized abutment, and the digital model of the crown is matched with different adjustment parameters according to different implant restoration methods, so that the digital model of the crown matches the digital model of the personalized abutment. The parameters include at least: adhesive parameters, additional adhesive parameters, distance to edge line, smoothing distance, bur radius and bur compensation spacing;

Combining the digital model of the personalized abutment and the digital model of the crown of the missing tooth, edit the digital model of the plaster scan to obtain the digital model of the oral cavity;

Process personalized abutment digital models, crown digital models and oral cavity digital models to form personalized abutment, dental crown and oral cavity models.

In one embodiment, the scanning of the implant impression to obtain the scan data of the patient's oral cavity, wherein the step of pre-forming the patient's intraoral shape on the implant impression includes:

Assemble the transfer rod on the implant in the patient's oral cavity, and collect the three-dimensional data of the patient's oral cavity through the implant impression, so that the transfer rod is fixed on the implant impression;

Take out the implant impression in the patient's mouth, and reset the analog on the transfer rod on the implant impression, and simulate the implant through the analog;

The implant impression is scanned by the oral three-dimensional scanner to obtain the scanning data of the implant impression.

In one embodiment, the step of calling the data in the database in the design software according to the model of the analog on the implant impression, and adjusting and generating the personalized abutment digital model includes:

Select the corresponding analog digital model in the analog database according to the model of the analog on the implant impression;

Insert the analog digital model into the reference point position of the missing tooth of the plaster scanned digital model;

Obtain the model data in the implant model database according to the implant model database corresponding to the analog digital model, and correspondingly generate a three-dimensional data model of the preset abutment;

Design the 3D data model of the preset abutment according to the shape parameters of the missing teeth, and design the height of the 3D data model of the preset abutment according to the 3D data of the contralateral teeth, and form a personalized digital model of the abutment, among which the shape parameters Including: gingival contour, gingival height, cuff shape, interjaw distance and implant placement direction.

In one embodiment, the step of editing the digital model of the dental crown based on the personalized abutment digital model includes:

Design the anatomical shape data of the crown of the missing tooth based on the personalized abutment digital model, where the anatomical shape data include at least: arch curvature, jaw curve, size ratio of the opposite tooth with the same name, and jaw plane;

The digital crown model is generated according to the anatomical shape data of the crown, so that the digital model of the crown matches the gingival contour, gingival penetration height, and cuff shape of the personalized abutment digital model.

In one embodiment, the step of editing the digital model of the oral cavity in combination with the digital model of the personalized abutment and the digital model of the crown of the missing tooth includes:

According to the digital model of the personalized abutment and the digital model of the crown, the plaster scanning digital model is modified, the redundant parts of the plaster scanning digital model are trimmed, and the complete dentition, palatal folds, frenulum and mucosal folds of the digital model of the occlusal plane are preserved;

Add jaw frame labels to trimmed plaster scan digital models;

Edit the size, direction and position of the gums on the oral digital model according to the shape of the plaster scanned digital model, personalized abutment digital model and crown digital model.

In one embodiment, the step of processing the personalized abutment digital model, the dental crown digital model and the oral cavity digital model to form the personalized abutment, the dental crown and the oral cavity model includes:

Transfer the data of the personalized abutment digital model to the corresponding cutting equipment, so that the cutting equipment can cut the abutment blank to form a personalized abutment;

The data of the digital model of the crown is transmitted to the corresponding cutting equipment, so that the cutting equipment can cut and sinter the crown blank to form the crown;

The data of the oral cavity digital model is transmitted to the printing device for 3D printing to obtain the oral cavity model.

In one embodiment, the step of transmitting the data of the personalized digital model of the abutment to the corresponding cutting equipment, so that the cutting equipment can cut the abutment blank, and the step of forming the personalized abutment includes:

The cutting equipment uses 4 sets of cutters to grind the abutment blank in turn, so that the surface of the abutment can reach a gap difference of 0.01; the radius of the T1 cutter = 1.5mm, the radius of the T2 cutter = 1.0mm, and the radius of the T3 cutter ＝0.75mm, the radius of tool T4＝0.5mm,

The step of transmitting the data of the digital model of the dental crown to the corresponding cutting equipment, so that the cutting equipment cuts and sinters the blank of the dental crown, and the step of forming the dental crown includes:

The cutting equipment uses 3 sets of cutters to carry out rough grinding, trimming and fine grinding and finishing on the crown blank in turn. Among them, the rough grinding form uses the No. 1 tool with a radius of 0.75mm, and the crown shape uses the No. 2 tool with a radius of 0.5mm. The minimum radius of No. 3 cutter is 0.3mm for fine grinding and fine repairing of the auxiliary ditch.

In addition, in order to achieve the above object, the present application also provides a device, wherein the device includes a memory, a processor and a processing device, the digital implant restoration program is stored in the memory, and the digital implant restoration program runs on the processor to realize the above-mentioned According to the digital implant restoration method described above, the processing equipment is used to process personalized abutments, crowns and oral models.

In addition, in order to achieve the above object, the present application also provides a computer-readable storage medium, wherein the computer-readable storage medium stores a digital implant restoration program, and when the digital implant restoration program is executed by a processor, the above-mentioned The steps of the digital implant restoration method.

Beneficial effects: Compared with the prior art, the present application provides a digital implant restoration method, device and computer-readable storage medium. The three-dimensional data of the patient's oral cavity is obtained through the implant impression, and the oral digital model is generated according to the three-dimensional data of the patient's oral cavity. Design a personalized abutment digital model; edit the digital crown model based on the personalized abutment digital model; process the personalized abutment digital model, crown digital model and oral model to form a materialized personalized abutment and crown and oral models. This application carries out accurate design and matching through the digitized personalized abutment digital model, dental crown digital model and oral cavity digital model, and then directly produces the real object corresponding to the digital model according to these digital models, so as to ensure that the real objects can also be accurately matched. Matching can further optimize the production model, improve the accuracy of personalized abutment and crown design, simplify the production process, improve production efficiency, and save production costs.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the accompanying drawings that need to be used in the descriptions of the embodiments or the prior art will be briefly introduced below. Obviously, the accompanying drawings in the following description are only for the present application For some embodiments, those of ordinary skill in the art can also obtain other drawings based on these drawings without any creative effort.

Fig. 1 is a flow chart of a preferred embodiment of a digital implant restoration method according to Embodiment 1 of the present application;

FIG. 2 is a schematic diagram of the process flow of the main steps of a digital implant restoration system according to Embodiment 1 of the present application;

FIG. 3 is a schematic diagram of the operation of a preferred embodiment of a device according to Embodiment 2 of the present application;

Fig. 4 is a schematic diagram of resetting the prosthesis on the implant impression in Example 1 of the present application;

FIG. 5 is a schematic diagram of a scanning implant impression in Embodiment 1 of the present application;

FIG. 6 is a schematic diagram of obtaining three-dimensional data of adjacent teeth in Embodiment 1 of the present application;

FIG. 7 is a schematic diagram of a replacement body in Embodiment 1 of the present application;

FIG. 8 is a schematic diagram of obtaining data of a complete dentition in Embodiment 1 of the present application;

FIG. 9 is a schematic diagram of a matching base station in Embodiment 1 of the present application;

Fig. 10 is a schematic diagram of the designed abutment in Embodiment 1 of the present application;

Fig. 11 is an effect diagram of the personalized abutment in Embodiment 1 of the present application;

Fig. 12 is a schematic diagram of setting the occlusal plane in Embodiment 1 of the present application;

FIG. 13 is a schematic diagram of a pruning model in Embodiment 1 of the present application;

Figure 14 is a schematic diagram of labeling in Embodiment 1 of the present application;

Fig. 15 is a schematic diagram of generating an oral cavity model in Embodiment 1 of the present application;

Fig. 16 is an effect diagram of the edited oral cavity model in Embodiment 1 of the present application;

Fig. 17 is an effect diagram of the editing model and abutment in Embodiment 1 of the present application;

Fig. 18 is a schematic diagram of a designed dental crown in Example 1 of the present application;

Fig. 19 is a schematic diagram of the edited gingiva in Example 1 of the present application.

Detailed ways

In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, not to limit the present application.

Embodiment one

The digital implant repair method described in the preferred embodiment of the present application, as shown in Figure 1 and Figure 2, the digital implant repair method includes the following steps:

S100. Scanning the implant impression to obtain the scan data of the patient's oral cavity, wherein the implant impression is pre-formed with the shape of the patient's mouth.

Specifically, the three-dimensional data of the patient's oral cavity is obtained through the implant impression. For example, the shape of the patient's oral cavity is first collected with the implant impression, and then the three-dimensional data of the patient's oral cavity can be obtained by scanning the implant impression. After that, the intraoral scanner can scan the patient's oral cavity. The 3D data is uploaded to the system through the wireless network, which is convenient for the subsequent calling of the system.

Step S100 specifically includes the following steps:

S110. Assemble the transfer rod on the implant in the patient's oral cavity, and collect the three-dimensional data of the patient's oral cavity through the implant impression, so that the transfer rod is fixed on the implant impression.

S120. Take out the implant impression in the patient's oral cavity, and reset the substitute on the transfer rod on the implant impression, and simulate the implant through the substitute.

S130. Scan the impression of the implant with a three-dimensional oral scanner, and obtain scanning data of the impression of the implant.

Specifically, in order to obtain the remaining dentition in the patient's mouth and the three-dimensional position of the implant or abutment, an appropriate implant impression technique should be selected according to the patient's specific conditions to obtain an accurate implant impression in the patient's mouth. Assemble the transfer rod on the implant, put the implant impression into the patient's mouth for collection, and collect the shape and shape characteristics of the patient's oral cavity through the implant impression. 4); then install the analog in the implant impression, fix the analog on the transfer rod through the fixing screws, and realize the reset of the transfer rod on the implant impression; scan the implant impression by 3Shape oral three-dimensional scanner (As shown in Figure 5), obtain the scan data of the implant impression; use the 3Shape oral 3D scanner to restore the scan data of the implant impression to the form of plaster scan data, and then obtain the three-dimensional data in the patient's oral cavity obtained through the implant impression, wherein, The three-dimensional data of the patient's oral cavity at least include the three-dimensional data of adjacent teeth (as shown in Figure 6), the shape and coordinate data of the analog body (as shown in Figure 7), and the data of the complete dentition (as shown in Figure 8). For example, after scanning the implant impression through the 3shape warehouse, the software will automatically reverse the data, so that the scanned data of the implant impression can be restored to the shape of the plaster model scan data. Before using the scanner to scan the implant impression, it is necessary to apply scanning powder on the implant impression work area and the analog to prevent the analog from being blurred due to the reflection of the surface of the analog during the scanning process; During the scanning process, it is necessary to scan the impression working area to ensure the accuracy of the scan; by scanning the implant impression, the scanning software will convert the shape parameters of the implant impression into digital three-dimensional data of the working model.

Step S200, importing the scan data of the patient's oral cavity into the design software to generate a plaster scan digital model.

Specifically, the scanned data of the implant impression is imported into the 3Shape design software, so that the virtual form of the implant impression can be seen in the display interface of the software. In order to show the actual situation of the patient's oral cavity, it is necessary to directly generate a plaster scan digital model that matches the virtual shape of the implant impression through the software. That is, the plaster scanning digital model is the specific shape of the patient's oral cavity, which is directly generated through the matching relationship in the software. (For example, the inner contour of the virtual shape of the implant impression corresponds to the outer contour of the digital model of the plaster scan. This process is also called legal phase reversal data.) In this way, the shape of the patient's oral cavity can be intuitively virtualized through tools such as computers.

Step S300, according to the model of the analog on the implant impression, retrieve the data in the database in the design software, and adjust and generate a personalized digital model of the abutment.

Specifically, according to the model of the substitute selected on the implant impression, the corresponding substitute model is selected in the substitute database for matching, and the position of the implant matched to the digital model of the oral cavity is reset, and the implant corresponding to the substitute is retrieved. Model database, generate the blanks that have been created in the corresponding database-virtual abutment (the virtual abutment includes the implant interface, the inclination angle of the abutment, the diameter of the abutment, the diameter of the abutment interface and the Morse taper, and the inclination angle of the screw channel and other parameters). The virtual abutment is a preset three-dimensional data model of the abutment, which can be a standard model provided by the software, or a three-dimensional data model of the abutment saved after subsequent modification by the user.

Wherein, step S300 includes the following steps:

S305 , establishing a database of the substitute body, so that the model of the substitute body corresponds to the three-dimensional data model of the preset abutment one by one.

S310. Select the corresponding digital model of the substitute in the substitute database according to the model of the substitute on the implant impression;

S320, inserting the analog digital model into the reference point position of the missing tooth of the plaster scanning digital model;

S330. Obtain the model data in the implant model database according to the implant model database corresponding to the analog digital model, and correspondingly generate a three-dimensional data model of the preset abutment;

S340. Design the preset three-dimensional data model of the abutment according to the shape parameters of the missing teeth, and design the height of the preset three-dimensional data model of the abutment according to the three-dimensional data of the contralateral teeth, and form a personalized digital model of the abutment, wherein Shape parameters include: gingival contour, transgingival height, cuff shape, intermaxillary distance, and implant placement orientation.

Specifically, select the corresponding substitute according to the missing tooth in the scan data form, the model of the substitute is known above, and then select the corresponding digital model of the substitute in the database; insert the digital model of the substitute into the reference of the missing tooth in the plaster scan data form Point position, and then match the corresponding abutment according to the analog (as shown in Figure 9); determine the gingival contour, gingival penetration height and cuff shape of the abutment to be formed according to the three-dimensional data of the missing tooth gingiva, and according to the three-dimensional data of the contralateral tooth, Personalize the height (intermaxillary distance) of the preset abutment 3D data model (as shown in Figure 10); gingival contour, gingival penetration height, cuff shape, intermaxillary distance and implant placement direction, generate personalized The digital model of the abutment (as shown in Figure 11). Adjust the position of the personalized abutment digital model with the reference point of the analog as the reference point. As mentioned above, after scanning the implant impression with 3shape, the software will automatically reverse the data, so that the scanned data of the implant impression can be restored to the shape of the digital model of the plaster scan. Through the three-dimensional data of the patient's oral cavity, a suitable substitute can be selected. In terms of data morphology, insert the analog into the reference point position of the missing tooth, and then match the corresponding abutment according to the analog, determine the gingival contour, gingival penetration height and cuff shape of the abutment according to the 3D data of the missing tooth gingiva, and determine the data for highly individual design of standard abutment digital models. Combined with gingival contour, gingival height, cuff shape, intermaxillary distance and implant placement direction, a personalized abutment digital model is generated. After that, the position of the three-dimensional data of the personalized abutment is adjusted with the reference point of the analog as the reference point.

It is also necessary to choose whether the neck edge of the personalized abutment digital model is located under the gingiva or flush with the gums according to clinical requirements, and a V-shaped groove is designed on the top of the abutment, and finally a personalized abutment that meets the actual situation of the patient is designed. digital model.

It may also include another step: S350, storing the digital model of the personalized abutment into the database of the design software to form a new three-dimensional data model of the personalized abutment, and storing the contour of the gingiva, the height of the gingival penetration and the shape of the cuff Parameters are used as matching elements for automatic matching in the next design.

In the specific process, when the patient's oral scan data is imported next time, before step S330 and step S340, the imported patient's oral scan data (such as the three-dimensional data of the contralateral teeth) can also be imported, with the gingival contour, gingival penetration height and cuff shape. The shape parameters of the abutment are matched and searched in the database as matching elements, and the pre-stored personalized abutment 3D data model with the smallest difference is found, and the model is directly exported to the display interface of the software. Then step S340 is executed. It can greatly reduce the workload of editing and improve efficiency.

S400. The digital model of the crown is edited based on the digital model of the personalized abutment, and the digital model of the crown is matched with different adjustment parameters according to different implant restoration methods, so that the digital model of the crown matches the digital model of the personalized abutment, The adjustment parameters at least include: adhesive parameters, additional adhesive parameters, distance to edge line, smoothing distance, bur radius and bur compensation distance.

Specifically, the digital model of the crown is obtained based on the digital model of the personalized abutment (as shown in Figure 18). After the design of the personalized abutment is completed, the upper restoration needs to be designed simultaneously to design the anatomical shape of the crown. , taking into account factors such as arch curvature, jaw curve, overjaw coverage, contralateral homonymous tooth size ratio, jaw plane and other factors to complete the anatomical shape design of the crown. The designed crown needs to meet the adjacency, occlusion, edge, shape and color and other standards. Different implant restoration methods (implant all-ceramic crown/bridge, implant porcelain crown/bridge, implant all-zirconium crown/bridge) need to set different adjustment parameters, and the adjustment parameters specifically include: adhesive parameters, additional adhesive parameters, to the edge Line distance, smoothing distance, bur radius and bur compensation spacing. Finally, choose whether to make holes in the crown and maxillofacial surface according to the implant restoration method (holes are required for screw retention, and no holes are required for bonding retention). For different materials, the adjustment parameters are as follows:

Numerical table of the adjustment parameters of the crown digital model of different implant restoration methods

According to the adjustment parameters of the crown digital model set according to the different implant restoration methods in the above table, the obtained virtual data during the restoration design corresponds to the 1:1 size of the sintered and crystallized crown of the abutment. It is the best value when designing the digital model of the dental crown. It can ensure the precise assembly of the crown and abutment on the upper part of the implant. Make the crown and the abutment fit completely and achieve excellent reduction and connection.

Wherein, step S400 includes the following steps:

S410. Design the anatomical shape data of the crown of the missing tooth according to the personalized abutment digital model, wherein the anatomical shape data at least include: dental arch curvature, jaw curve, size ratio of the opposite tooth with the same name, and jaw plane;

S420. Generate a digital crown model according to the anatomical form data of the crown, so that the digital crown model matches the gingival contour, gingival penetration height, and cuff shape of the personalized abutment digital model.

Specifically, on the plaster scanning digital model, design the three-dimensional data of the anatomical shape data of the crown of the missing tooth according to the personalized digital model of the abutment. The three-dimensional data of the anatomical shape data include at least: arch curvature, jaw curve, and the size of the opposite tooth Proportion, maxillary plane. The three-dimensional data of the anatomical shape data of the crown can be matched with the gingival contour, gingival penetration height, and cuff shape of the personalized abutment digital model. Based on the personalized abutment digital model, the three-dimensional data of the missing tooth crown is instantiated to generate a digital model of the missing tooth crown. Afterwards, the oral model is edited by combining the three-dimensional data of the patient's oral cavity, the digital model of the personalized abutment, and the digital model of the crown of the missing tooth.

S500. Combining the personalized abutment digital model and the digital model of the crown of the missing tooth, edit the digital model of the plaster scan to obtain the digital model of the oral cavity.

After designing the personalized abutment digital model and the digital model of the missing tooth crown, the occlusal plane model is set on the plaster scanning digital model according to the patient's oral three-dimensional data, and then the occlusal plane model is trimmed, and the redundant parts of the occlusal plane model are trimmed , retain the complete dentition, palatal folds, frenulum, and mucosal folds of the occlusal plane model, then add jaw frame labels to the occlusal plane model, scan digital models based on plaster, personalized abutment digital models, and crown numbers of missing teeth Edit the gingiva for the model, and generate a digital model of the oral cavity based on the digital model of the plaster scan and the visualization of the gingiva. Figure 16 is the rendering of the digital model of the oral cavity generated. (As shown in Figure 17 and Figure 18).

Step S500 specifically includes:

S510. Modify the plaster scan digital model according to the personalized abutment digital model and the crown digital model, trim redundant parts of the plaster scan digital model, and retain the complete dentition, palatal folds, frenulum, and mucosal folds of the plaster scan digital model .

Specifically, according to the three-dimensional data of the patient's oral cavity, the personalized digital model of the abutment, and the digital model of the crown of the missing tooth, the occlusal plane model (as shown in Figure 12) is set on the plaster scanning digital model; the occlusal plane model is trimmed, and the bite The redundant parts of the maxillary plane model were trimmed, and the complete dentition, palatal folds, frenulum and mucosal folds of the occlusal plane model were preserved (as shown in Figure 13);

S520. Add a jaw frame label to the trimmed plaster scanned digital model.

Specifically, a jaw frame label is added to the occlusal plane model obtained after trimming the plaster and scanning the digital model (as shown in FIG. 14 );

S530. Edit the size, direction and position of the gingiva on the plaster scanned digital model according to the shape of the plaster scanned digital model, the personalized abutment digital model and the dental crown digital model.

Specifically, the gingiva is edited according to the plaster scanning digital model, the personalized abutment digital model and the missing tooth crown digital model (as shown in Figure 19); the oral digital model is generated according to the patient's oral three-dimensional data and gingival visualization (as shown in Figure 15) .

S600. Process personalized abutment digital models, dental crown digital models and oral cavity digital models to form personalized abutment, dental crown and oral cavity models.

Specifically, the personalized abutment digital model, the crown and the oral cavity model are produced through different processing methods to form the personalized abutment digital model, the dental crown and the oral cavity model in kind. For example, the personalized abutment digital model, crown digital model and oral cavity model are formed into processing data, and then processed and printed according to the processing data to obtain the personalized abutment, dental crown and oral cavity model.

Step S600 specifically includes:

Step S610, transmitting the data of the digital model of the personalized abutment to the corresponding cutting equipment, so that the cutting equipment can cut the blank of the abutment to form the personalized abutment.

Personalized abutments are processed on standard finished abutments. While waiting for the finished abutment to be purchased, crown cutting and 3D printing of the oral cavity model are carried out simultaneously. After the finished abutment is delivered, the data of the completed digital model of the personalized abutment is retrieved for processing, so that the finished abutment is processed to be consistent with the shape of the digital model of the personalized abutment, and the precision assembly is finally completed, thereby improving the tooth quality of the upper part of the implant. Crown precision and production efficiency. It avoids the traditional steps of pouring plaster working model, grinding abutment, and adjusting crown abutment and occlusal, which reduces the cost and improves work efficiency, and this method has guiding significance for the production process of dentures, making the production process of dentures more standardized.

In this embodiment, the cutting equipment for processing the finished abutment adopts 4 sets of cutting tools to grind the abutment blank in sequence, so that the surface of the abutment can reach a gap difference of 0.01; wherein the radius of the T1 tool is 1.5mm, and the T2 tool The radius of the tool = 1.0mm, the radius of the T3 tool = 0.75mm, and the radius of the T4 tool = 0.5mm. Using the strategy execution of the processing tool, the finish machining of the surface of the finished abutment reaches a gap difference of 0.01, ensuring that the shape of the formed personalized abutment is consistent with the design data.

Step S620, transmitting the data of the digital model of the dental crown to the corresponding cutting equipment, so that the cutting equipment can cut and sinter the blank of the dental crown to form the dental crown.

In this embodiment, the cutting equipment for processing the crown blank adopts 3 sets of cutters to carry out rough grinding, trimming and fine grinding on the crown blank in sequence, wherein the rough grinding form adopts No. 1 tool with a radius of 0.75mm, and the crown shape The radius of the No. 2 cutter is 0.5mm, and the minimum radius of the No. 3 cutter is 0.3mm for the fine grinding and fine repair of the auxiliary groove. According to the typesetting method above, the diameter and tool path of the testing and verification tool are selected to cut the abutment centeringly, and 4 sets of tools are set for precise grinding of the finished abutment. The cutting order of radius selection is: T1 number = 1.5 mm, T2 size = 1.0mm, T3 size = 0.75mm, T4 size = 0.5mm. According to the execution of the machining strategy, the finish machining of the surface of the abutment achieves a gap difference of 0.01. It solves the difference between the tool and the jig in the prior art: the jig used for the personalized abutment generally uses a positive clamp or a double clamp to fix the titanium column, but both of these two ways are fixed by a support rod, resulting in damage to the maxillofacial surface .

According to the cutting crown and the compensation angle of the bur in the crown, the data is expanded and supplemented. For the inside of the crown of the key crown, the No. 1 tool with a radius of 0.75mm is selected for rough grinding, and the No. 2 tool with a radius of 0.5mm is used for trimming. Then select No. 3 bur with the smallest radius of 0.3mm for fine grinding. In this way, the knife path inside the crown is completely cut and finely cut.

The parameter template of the cutting machine, the bur and the fixture of the equipment machine tool are used to achieve high-precision cutting requirements, so as to meet the precision assembly of the implant upper restoration crown and the finished abutment after sintering. The processing parameter template requirements are as follows:

parameter settings value parameter settings value Draft angle/° 2.0 Grid size/mm 1.0 Shoulder radius/mm 1.2 Vertical compensation/mm 0 Top fillet radius/mm 0.4 Hole wall thickness/mm 0 Edge chamfer radius/mm 0 Hole fillet/mm 0

Processing parameter template requirement table

Step S630, transmitting the data of the oral cavity digital model to the printing device for 3D printing to obtain the oral cavity model.

In the above process, according to the criteria of the tightness of the abutment and the restoration, the tightness of the edge, and the judgment of anti-rotation, the finished abutment completed by machine cutting is compared with the current process of grinding the abutment after scanning-design-cutting; machine-cutting is integrated The molding precision is higher, and the tightness is better, which meets the production requirements. After cutting, the occlusal and adjoining of the abutment and the crown on the model were also consistent with the design, and there was no deflection phenomenon. The abutments and crowns formed in this example are precision devices for implant upper restoration crowns and finished abutments of various strains of materials, which are closely fitted to achieve a good in-position effect and meet the requirements of abutments, crowns and models. Synchronous completion test criteria. The specific effect data is as follows:

Inspection results of abutments, crowns and models completed simultaneously

Finally, the product is polished and cleaned to complete the finished product.

Embodiment two

As shown in FIG. 3 , in order to achieve the above purpose, the present application also provides an apparatus, which includes a processor 10 , a memory 20 , a display 30 and processing equipment. Figure 3 shows only some of the components of the device, but it should be understood that implementation of all of the illustrated components is not required and that more or fewer components may alternatively be implemented.

The memory 20 may be an internal storage unit of the device in some embodiments, such as a hard disk or a memory of the device. The memory 20 can also be an external storage device of the device in other embodiments, such as a plug-in hard disk equipped on the device, a smart memory card (Smart Media Card, SMC), a secure digital (SecureDigital, SD ) card, flash memory card (Flash Card), etc. Further, the memory 20 may also include both an internal storage unit of the device and an external storage device. The memory 20 is used to store application software and various data installed in the device, such as program codes of the installed device. The memory 20 can also be used to temporarily store data that has been output or will be output. In one embodiment, the digital implant restoration program 40 is stored in the memory 20, and the digital implant restoration program 40 can be executed by the processor 10, so as to implement the digital implant restoration method in this application.

The processor 10 in some embodiments may be a central processing unit (Central Processing Unit, CPU), a microprocessor or other data processing chips for running program codes stored in the memory 20 or processing data, for example Execute the digital implant restoration method and the like.

In some embodiments, the display 30 may be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, an OLED (Organic Light-Emitting Diode, Organic Light-Emitting Diode) touch device, and the like. The display 30 is used for displaying information on the device and for displaying a visual user interface. The components 10-30 of the device communicate with each other via a system bus.

In one embodiment, when the processor 10 executes the digital implant restoration program 40 in the memory 20, the following steps are implemented:

Scan the impression of the implant to obtain the patient's oral scan data, in which the shape of the patient's mouth is pre-formed on the implant impression; import the patient's oral scan data into the design software to generate a digital model of the plaster scan;

According to the model of the substitute on the implant impression, the data in the database in the design software is retrieved and adjusted to generate a personalized digital model of the abutment;

The digital model of the crown is edited based on the digital model of the personalized abutment, and the digital model of the crown is matched with different adjustment parameters according to different implant restoration methods, so that the digital model of the crown matches the digital model of the personalized abutment. The parameters include at least: adhesive parameters, additional adhesive parameters, distance to edge line, smoothing distance, bur radius and bur compensation spacing;

Combining the digital model of the personalized abutment and the digital model of the crown of the missing tooth, edit the digital model of the plaster scan to obtain the digital model of the oral cavity;

Process personalized abutment digital models, crown digital models and oral cavity digital models to form personalized abutment, dental crown and oral cavity models.

Embodiment three

The present application also provides a computer-readable storage medium, wherein the computer-readable storage medium stores an optimization program for digital implant restoration, and when the optimization program for digital implant restoration is executed by a processor, the above-mentioned digital implant restoration can be realized. The steps of the optimization method for repair.

In summary, this application proposes a digital implant restoration method, device, and computer-readable storage medium. The solution of this application can simultaneously perform crown cutting and 3D printing of oral cavity models while waiting for the purchase of finished abutments. After the finished abutment is delivered, the data of the completed digital model of the personalized abutment is retrieved for processing, so that the finished abutment is processed to be consistent with the shape of the digital model of the personalized abutment, and the precision assembly is finally completed, thereby improving the tooth quality of the upper part of the implant. Crown precision and production efficiency. It avoids the traditional steps of pouring plaster working model, grinding abutment, and adjusting crown abutment and occlusal, which reduces the cost and improves work efficiency, and this method has guiding significance for the production process of dentures, making the production process of dentures more standardized. After the employee selects the abutment model, directly match the developed corresponding abutment model toolkit to carry out the machinable design of the finished abutment and the design of the upper crown. During the design, it is necessary to test and adjust the parameters of the abutment. At present, the test of the parameters such as the shoulder radius and the top fillet radius of the finished abutment has been completed. According to the parameters of the abutment, adjust and test the appropriate adhesive gap, extra gap, and edge line The distance, smoothing distance and other parameters, and constantly adjust the parameter template, bur, and fixture of the cutting machine to meet the high-precision cutting requirements. While waiting for the finished abutment to be purchased, crown and bridge cutting is performed simultaneously, and the model is 3D printed. After the finished abutment is delivered, the data of the finished abutment that has completed the personalized design is retrieved to process the abutment, and the precision assembly is finally completed, thereby improving the accuracy and production efficiency of the upper restoration crown of the implant. At this point, the abutment, crown, and model can be completed The process of synchronous processing avoids the traditional steps of pouring gypsum working model, grinding abutment, and adjusting crown abutment and occlusal, which reduces the cost and improves work efficiency, and this method has guiding significance for the production process of dentures. The denture manufacturing process is more standardized.

The above descriptions are only preferred embodiments of the application, and are not intended to limit the application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the application should be included in the protection of the application. within range.

Claims (10)

1. A digital implant restoration method, characterized in that said method comprises the following steps: Scan the implant impression to obtain the patient's oral scan data, in which the shape of the patient's mouth is pre-formed on the implant impression; Import the patient's oral scan data into the design software to generate a plaster scan digital model; According to the model of the substitute on the implant impression, the data in the database in the design software is retrieved and adjusted to generate a personalized digital model of the abutment; The digital model of the crown is edited based on the digital model of the personalized abutment, and the digital model of the crown is matched with different adjustment parameters according to different implant restoration methods, so that the digital model of the crown matches the digital model of the personalized abutment. The parameters include at least: adhesive parameters, additional adhesive parameters, distance to edge line, smoothing distance, bur radius and bur compensation spacing; Combining the digital model of the personalized abutment and the digital model of the crown of the missing tooth, edit the digital model of the plaster scan to obtain the digital model of the oral cavity; Process personalized abutment digital models, crown digital models and oral cavity digital models to form personalized abutment, dental crown and oral cavity models. 2. The digital implant restoration method according to claim 1, wherein the scanning implant impression is used to obtain the patient's oral cavity scan data, wherein the step of pre-forming the patient's intraoral shape on the implant impression comprises: Assemble the transfer rod on the implant in the patient's oral cavity, and collect the three-dimensional data of the patient's oral cavity through the implant impression, so that the transfer rod is fixed on the implant impression; Take out the implant impression in the patient's mouth, and reset the analog on the transfer rod on the implant impression, and simulate the implant through the analog; The implant impression is scanned by the oral three-dimensional scanner to obtain the scanning data of the implant impression. 3. The digital implant restoration method according to claim 1, characterized in that, according to the model of the analog on the implant impression, the data in the database in the design software is transferred, and the personalized abutment digital model is adjusted and generated The steps include: Select the corresponding analog digital model in the analog database according to the model of the analog on the implant impression; Insert the analog digital model into the reference point position of the missing tooth of the plaster scanned digital model; Obtain the model data in the implant model database according to the implant model database corresponding to the analog digital model, and correspondingly generate a three-dimensional data model of the preset abutment; Design the 3D data model of the preset abutment according to the shape parameters of the missing teeth, and design the height of the 3D data model of the preset abutment according to the 3D data of the contralateral teeth, and form a personalized digital model of the abutment, among which the shape parameters Including: gingival contour, gingival height, cuff shape, interjaw distance and implant placement direction. 4. The digital implant restoration method according to claim 1, wherein the step of editing the digital model of the crown based on the personalized abutment digital model comprises: Design the anatomical shape data of the crown of the missing tooth based on the personalized abutment digital model, where the anatomical shape data include at least: arch curvature, jaw curve, size ratio of the opposite tooth with the same name, and jaw plane; The digital crown model is generated according to the anatomical shape data of the crown, so that the digital model of the crown matches the gingival contour, gingival penetration height, and cuff shape of the personalized abutment digital model. 5. The digital implant restoration method according to claim 4, wherein the step of editing the oral digital model in combination with the personalized abutment digital model and the crown digital model of the missing tooth comprises: According to the digital model of the personalized abutment and the digital model of the crown, the plaster scanning digital model is modified, the redundant parts of the plaster scanning digital model are trimmed, and the complete dentition, palatal folds, frenulum and mucosal folds of the plaster scanning digital model are retained; Add jaw frame labels to trimmed plaster scan digital models; Edit the size, direction and position of the gingiva on the plaster scan digital model according to the shape of the plaster scan digital model, personalized abutment digital model and crown digital model. 6. The digital implant restoration method according to claim 4, wherein the personalized abutment digital model, the crown digital model and the oral cavity digital model are processed to form the personalized abutment, the dental crown and the oral cavity model The steps include: Transfer the data of the personalized abutment digital model to the corresponding cutting equipment, so that the cutting equipment can cut the abutment blank to form a personalized abutment; The data of the digital model of the crown is transmitted to the corresponding cutting equipment, so that the cutting equipment can cut and sinter the crown blank to form the crown; The data of the oral cavity digital model is transmitted to the printing device for 3D printing to obtain the oral cavity model. 7. The digital implant restoration method according to claim 6, wherein the data of the personalized abutment digital model is transmitted to the corresponding cutting equipment, so that the cutting equipment can cut the abutment blank to form a personalized abutment. The abutment steps include: The cutting equipment uses 4 sets of cutters to grind the abutment blank in turn, so that the surface of the abutment can reach a gap difference of 0.01; the diameter of No. 1 cutter = 1.5mm, the diameter of No. 2 cutter = 1.0mm, and the diameter of No. 3 cutter = 0.75mm, the diameter of No. 4 tool = 0.5mm. 8. The digital implant restoration method according to claim 6, wherein the data of the digital model of the dental crown is transmitted to the corresponding cutting equipment, so that the cutting equipment can cut and sinter the blank of the dental crown to form a dental crown. The crown steps include: The cutting equipment adopts 3 sets of cutters to carry out rough grinding, trimming and fine grinding on the crown blank in turn. Among them, No. 1 tool with a diameter of 0.75 mm is used for rough grinding, No. 2 tool with a diameter of 0.5 mm is used for trimming, and No. 3 tool is used for fine grinding. The minimum diameter is 0.3mm. 9. A device, characterized in that the device includes a memory, a processor and a processing device, the memory stores a digital implant restoration program, and the digital implant restoration program runs on the processor to achieve the following: The digital implant restoration method according to any one of claims 1-8; the processing equipment is used to process personalized abutments, crowns and oral cavity models. 10. A computer-readable storage medium, characterized in that, the computer-readable storage medium stores a digital implant restoration program, and when the digital implant restoration program is executed by a processor, it realizes any one of claims 1-8. Steps of the digital implant restoration method described above.

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