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

Abstract

The application discloses a digital implant restoration method, comprising the following steps: scanning an implant impression to obtain oral scanning data of a patient; importing the oral scanning data of the patient into design software to generate an oral digital model; according to a model of a substitute body, data in a database is called to generate a personalized abutment digital model; a crown digital model is edited based on the personalized abutment digital model, and the crown digital model is matched with different adjustment parameters according to different implant restoration modes, so that the crown digital model is matched with the personalized abutment digital model, wherein the adjustment parameters at least include: adhesive parameters, additional adhesive parameters, distance to a marginal line, smooth distance, lathe needle radius and lathe needle compensation spacing; the personalized abutment digital model, the crown digital model and the oral digital model are processed to form a personalized abutment, a crown and an oral model. The method has the advantages of simplifying a production process, improving production efficiency and saving production cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of dental equipment manufacturing, and more particularly to a digital implant restoration method, device and computer readable storage medium. BACKGROUND

[0002] Implant teeth, also known as artificial implant teeth, are not really planted with natural teeth, but through medical methods, pure titanium metal with high compatibility with human bone is precisely designed into a cylindrical body or other shapes similar to tooth roots, implanted into the alveolar bone of the edentulous area through a small surgical operation, and after 1-3 months, when the artificial tooth root is integrated with the alveolar bone, a porcelain crown is made on the artificial tooth root. Implant teeth can achieve a repair effect similar to the function, structure and aesthetic effect of natural teeth, and have become the preferred repair method for more and more edentulous patients. Because it is non-destructive, implant teeth have been recognized by the dental medical community as the preferred repair method for edentulous patients.

[0003] In the prior art, implant teeth include an implant body, an implant abutment and an implant crown, the implant body is punched into the alveolar bone of the patient, the implant abutment is fixedly arranged on the implant body, and the implant crown is fixedly sleeved on the implant abutment. The implant teeth composed of the implant body, the implant abutment and the implant crown can repair the missing teeth in the patient's oral cavity, thereby replacing the missing teeth to achieve the functions of oral aesthetics and chewing food.

[0004] The inside of each patient's oral cavity is different, so only the implant teeth that match it can achieve good repair effect, otherwise it not only cannot effectively repair, but also can cause damage to other healthy teeth. Therefore, before performing the implant tooth surgery, the corresponding implant body, implant abutment and implant crown need to be made in advance according to the inside of the patient's oral cavity.

[0005] For example, in the prior art, a model is made by using reverse mold gypsum, which needs to go through processes such as grinding bottom, adding base, maxillary frame, selecting abutment and grinding abutment. It can be seen that the operation process steps are complicated, the cross-department process needs to go through multiple steps, and the process takes a long time; the flow and vibration of the gypsum during reverse molding may cause the implant body to shift, which may cause the deviation of the implant body shift, thereby affecting the success of the implant restoration.

[0006] Therefore, the prior art needs to be further optimized to make a model. SUMMARY

[0007] The purpose of the present application is to provide a digital implant restoration method, device and computer readable storage medium, which can improve the accuracy and efficiency of the upper implant crown restoration.

[0008] To achieve the above-mentioned purpose, the technical solution adopted by the present application is:

[0009] The application provides a digital implant restoration method, which comprises the following steps:

[0010] scanning an implant impression to obtain patient oral cavity scanning data, wherein the patient's intraoral shape is pre-formed on the implant impression;

[0011] importing the patient oral cavity scanning data into design software to generate a gypsum scanning digital model;

[0012] according to the model of the substitute on the implant impression, calling the data in the database of the design software, and adjusting to generate a personalized abutment digital model;

[0013] editing a crown digital model based on the personalized abutment digital model, wherein the crown digital model matches different adjustment parameters according to different implant restoration modes, so that the crown digital model matches the personalized abutment digital model, wherein the adjustment parameters at least include: adhesive parameters, additional adhesive parameters, distance to the edge line, smoothing distance, turning needle radius and turning needle compensation spacing;

[0014] combining the personalized abutment digital model and the crown digital model of the missing tooth, editing the gypsum scanning digital model, thereby obtaining an oral cavity digital model;

[0015] processing the personalized abutment digital model, the crown digital model and the oral cavity digital model to form a personalized abutment, a crown and an oral cavity model.

[0016] In an embodiment, the step of scanning the implant impression to obtain patient oral cavity scanning data, wherein the patient's intraoral shape is pre-formed on the implant impression comprises:

[0017] assembling a transfer rod on the implant in the patient's oral cavity, collecting three-dimensional data of the patient's oral cavity through the implant impression, and fixing the transfer rod on the implant impression;

[0018] taking out the implant impression in the patient's oral cavity, and resetting the substitute on the transfer rod on the implant impression to simulate the implant through the substitute;

[0019] scanning the implant impression through an oral cavity three-dimensional scanner to obtain implant impression scanning data.

[0020] In an embodiment, the step of according to the model of the substitute on the implant impression, calling the data in the database of the design software, and adjusting to generate a personalized abutment digital model comprises:

[0021] selecting a corresponding substitute digital model in the substitute database according to the model of the substitute on the implant impression;

[0022] inserting the digital model of the substitute body into the reference point position of the missing tooth of the gypsum scanning digital model;

[0023] According to the implant model database corresponding to the digital model of the substitute body, the model data in the implant model database is obtained, and a preset abutment three-dimensional data model is generated accordingly;

[0024] According to the contour parameters of the missing tooth, the height of the preset abutment three-dimensional data model is designed, and a personalized abutment digital model is formed, wherein the contour parameters include gum contour, transgingival height, cuff shape, interarch distance, and implant implantation direction.

[0025] In one embodiment, the step of editing the crown digital model based on the personalized abutment digital model comprises:

[0026] According to the anatomic form data of the crown of the missing tooth, the anatomic form data of the crown of the missing tooth is designed, wherein the anatomic form data at least includes: dental arch curvature, jaw curve, size ratio of contralateral homonym tooth, jaw plane;

[0027] According to the anatomic form data of the crown, the crown digital model is generated, so that the crown digital model matches the gum contour, transgingival height and cuff shape of the personalized abutment digital model.

[0028] In one embodiment, the step of combining the personalized abutment digital model and the crown digital model of the missing tooth to edit the oral digital model comprises:

[0029] According to the personalized abutment digital model and the crown digital model, the gypsum scanning digital model is modified, the excess part of the gypsum scanning digital model is trimmed, and the complete dentition, palatal rugae, frenulum and mucosal rugae of the occlusion plane digital model are retained;

[0030] Adding a jaw frame label to the trimmed gypsum scanning digital model;

[0031] According to the shape of the gypsum scanning digital model, the personalized abutment digital model and the crown digital model, the size, direction and position of the gum on the oral digital model are edited.

[0032] In one embodiment, the step of processing the personalized abutment digital model, the crown digital model and the oral digital model to form the personalized abutment, the crown and the oral model comprises:

[0033] The data of the personalized abutment digital model is transmitted to the corresponding cutting equipment, so that the cutting equipment cuts the abutment blank to form the personalized abutment;

[0034] transmitting the data of the crown digital model to a corresponding cutting device to make the cutting device cut the crown blank and perform sintering to form the crown;

[0035] transmitting the data of the oral cavity digital model to a printing device for 3D printing to obtain the oral cavity model.

[0036] In an embodiment, the step of transmitting the data of the personalized abutment digital model to a corresponding cutting device to make the cutting device cut the abutment blank to form the personalized abutment comprises:

[0037] The cutting device adopts four sets of cutters to sequentially grind the abutment blank, so that the surface of the abutment reaches a gap difference of 0.01; wherein the radius of the T1 cutter is 1.5 mm, the radius of the T2 cutter is 1.0 mm, the radius of the T3 cutter is 0.75 mm, and the radius of the T4 cutter is 0.5 mm,

[0038] The step of transmitting the data of the crown digital model to a corresponding cutting device to make the cutting device cut the crown blank and perform sintering to form the crown comprises:

[0039] The cutting device adopts three sets of cutters to sequentially perform rough grinding, trimming, and fine grinding and finishing on the crown blank, wherein the radius of the No. 1 cutter for rough grinding is 0.75 mm, the radius of the No. 2 cutter for trimming the crown is 0.5 mm, and the minimum radius of the No. 3 cutter for fine grinding and finishing the tooth flower auxiliary groove is 0.3 mm.

[0040] In addition, in order to achieve the above-mentioned purpose, the present application also provides a device, wherein the device comprises a memory, a processor and a processing device, the memory stores a digital implant restoration program, the digital implant restoration program runs on the processor, and the digital implant restoration method as described above is realized, and the processing device is used to process the personalized abutment, the crown and the oral cavity model.

[0041] In addition, in order to achieve the above-mentioned purpose, the present application also provides a computer readable storage medium, wherein the computer readable storage medium stores a digital implant restoration program, and the digital implant restoration program realizes the steps of the digital implant restoration method as described above when executed by a processor.

[0042] Beneficial effects: compared with the prior art, the digital implant restoration method, device and computer readable storage medium provided by the application obtain three-dimensional data of the patient's oral cavity through an implant impression, generate an oral digital model and design a personalized abutment digital model according to the three-dimensional data of the patient's oral cavity; edit a crown digital model based on the personalized abutment digital model; process the personalized abutment digital model, the crown digital model and the oral model to form a personalized abutment, a crown and an oral model in a physical form. The personalized abutment digital model, the crown digital model and the oral digital model are accurately designed and matched, and then the physical objects corresponding to the digital models are directly produced according to the digital models, so that the physical objects can also be accurately matched, the production model can be further optimized, the accuracy of the personalized abutment and crown design is improved, the production process is simplified, the production efficiency is improved, and the production cost is saved. BRIEF DESCRIPTION OF DRAWINGS

[0043] In order to more clearly illustrate the technical solutions in the embodiments of the application, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0044] Figure 1 The flow chart of a preferred embodiment of a digital implant restoration method of embodiment one of the application;

[0045] Figure 2 The process flow principle diagram of the main steps of a digital implant restoration system of embodiment one of the application;

[0046] Figure 3 The running schematic diagram of a preferred embodiment of a device of embodiment two of the application;

[0047] Figure 4 The schematic diagram of resetting the substitute body on the implant impression in embodiment one of the application;

[0048] Figure 5 The schematic diagram of scanning the implant impression in embodiment one of the application;

[0049] Figure 6 The schematic diagram of obtaining the three-dimensional data of the adjacent teeth in embodiment one of the application;

[0050] Figure 7 The schematic diagram of setting the substitute body in embodiment one of the application;

[0051] Figure 8 The schematic diagram of obtaining the data of the complete dentition in embodiment one of the application;

[0052] Figure 9 The schematic diagram of matching the base in the embodiment one of the present application;

[0053] Figure 10 The schematic diagram of designing the base in the embodiment one of the present application;

[0054] Figure 11 The effect diagram of the personalized base in the embodiment one of the present application;

[0055] Figure 12 The schematic diagram of setting the bite plane in the embodiment one of the present application;

[0056] Figure 13 The schematic diagram of trimming the model in the embodiment one of the present application;

[0057] Figure 14 The schematic diagram of adding the label in the embodiment one of the present application;

[0058] Figure 15 The schematic diagram of generating the oral model in the embodiment one of the present application;

[0059] Figure 16 The effect diagram of editing the oral model in the embodiment one of the present application;

[0060] Figure 17 The effect diagram of editing the model and the base in the embodiment one of the present application;

[0061] Figure 18 The schematic diagram of designing the crown in the embodiment one of the present application;

[0062] Figure 19 The schematic diagram of editing the gum in the embodiment one of the present application. DETAILED DESCRIPTION

[0063] In order to make the technical problems to be solved by the present application, the technical solutions and beneficial effects clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.

[0064] Embodiment one

[0065] The digital implant restoration method described in the preferred embodiment of the present application, as shown in Figure 1 、 Figure 2 The digital implant restoration method includes the following steps:

[0066] S100, scanning the implant impression to obtain the oral scanning data of the patient, wherein the implant impression is pre-formed with the shape of the patient's mouth.

[0067] Specifically, the three-dimensional data of the patient's oral cavity is obtained by planting the impression, for example, the shape of the patient's oral cavity is collected by using the implant impression, then the three-dimensional data of the patient's oral cavity can be obtained by scanning the implant impression, and then the intraoral scanner can upload the three-dimensional data of the patient's oral cavity to the system through the wireless network, which is convenient for subsequent calling of the system.

[0068] Step S100 specifically includes the following steps:

[0069] S110, assemble the transfer rod on the implant in the patient's oral cavity, collect the three-dimensional data of the patient's oral cavity by the implant impression, and fix the transfer rod on the implant impression.

[0070] S120, take out the implant impression in the patient's oral cavity, and reset the transfer rod on the implant impression to replace the body, and simulate the implant by the replacement body.

[0071] S130, scan the implant impression by the oral three-dimensional scanner to obtain the implant impression scanning data.

[0072] Specifically, in order to obtain the three-dimensional position of the remaining dentition in the patient's oral cavity, the implant or the abutment, the appropriate implant impression technology should be selected according to the specific situation of the patient to obtain the accurate implant impression in the patient's oral cavity. The transfer rod is assembled on the implant, the implant impression is placed into the patient's oral cavity for collection, the shape features in the patient's oral cavity are collected by the implant impression, and the transfer rod is taken out of the oral cavity together with the fixing screw along with the implant impression (as shown in Figure 4 ); then the replacement body is installed in the implant impression, the replacement body is fixed on the transfer rod through the fixing screw, and the transfer rod is reset on the replacement body in the implant impression; the implant impression is scanned by the 3Shape oral three-dimensional scanner (as shown in Figure 5 ), and the implant impression scanning data is obtained; the implant impression scanning data is restored to the form of gypsum scanning data by the 3Shape oral three-dimensional scanner, and then the three-dimensional data of the patient's oral cavity obtained by the implant impression is obtained, wherein the three-dimensional data of the patient's oral cavity at least includes the three-dimensional data of the adjacent teeth (as shown in Figure 6 ), the form and coordinate data of the replacement 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 by the 3shape warehouse, the software will automatically flip the data to restore the form of the gypsum model scanning data. Before the step of scanning the implant impression by the scanner, scanning powder needs to be applied on the implant impression work area and the replacement body to prevent the replacement body from being unclear due to the reflection of the replacement body surface to the light during the scanning process; the implant impression work area needs to be scanned during the scanning process to ensure the accuracy of the scanning; by scanning the implant impression, the scanning software will convert the shape form parameters of the implant impression into digital work model three-dimensional data.

[0073] Step S200, importing the patient's oral cavity scanning data into the design software to generate a gypsum scanning digital model.

[0074] Specifically, the scanning 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, a gypsum scanning digital model matching the virtual form of the implant impression needs to be directly generated by the software. That is, the gypsum scanning digital model is the specific form 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 form of the implant impression corresponds to the outer contour of the gypsum scanning digital model, and this process is also called law phase flip data) This can intuitively virtualize the form in the patient's oral cavity through a computer or other tools.

[0075] Step S300, according to the model of the substitute on the implant impression, call the data in the database in the design software, and adjust to generate a personalized abutment digital model.

[0076] Specifically, according to the selected substitute model on the implant impression, the corresponding substitute model is selected in the substitute database for matching, and the implant position of the digital model in the oral cavity is reset. The corresponding implant model database of the substitute is called to generate the embryo-virtual abutment (the virtual abutment includes implant interface, abutment inclination angle, abutment diameter, abutment interface diameter and Morse taper, screw channel inclination angle, etc.) created by the database. The virtual abutment is a preset abutment three-dimensional data model, which can be a standard model provided by the software, or a modified and saved abutment three-dimensional data model by the user.

[0077] Among them, step S300 includes the following steps:

[0078] S305, establishing a substitute database so that the substitute model corresponds to the preset abutment three-dimensional data model one by one.

[0079] S310, selecting the corresponding substitute digital model in the substitute database according to the model of the substitute on the implant impression;

[0080] S320, inserting the substitute digital model into the reference point position of the missing tooth of the gypsum scanning digital model;

[0081] S330, according to the implant model database corresponding to the substitute digital model, obtaining the model data in the implant model database, and corresponding generating a preset abutment three-dimensional data model;

[0082] S340, design the preset abutment three-dimensional data model according to the shape parameters of the missing tooth, and design the height of the preset abutment three-dimensional data model according to the three-dimensional data of the opposite tooth, and form a personalized abutment digital model, wherein the shape parameters include: gum contour, transgingival height, cuff shape, interarch distance and implant implantation direction.

[0083] Specifically, according to the shape of the missing tooth scanned data, the corresponding replacement body is selected, and the type of the replacement body is known as described above, and then the corresponding replacement body digital model is selected in the database; the replacement body digital model is inserted into the reference point position of the missing tooth in the gypsum scanning data shape, and then the corresponding abutment is matched according to the replacement body (as shown in Figure 9 The gum contour, transgingival height and cuff shape of the abutment to be formed are determined according to the three-dimensional data of the missing tooth gum, and the height (interarch distance) of the preset abutment three-dimensional data model is personalized designed according to the three-dimensional data of the opposite tooth (as shown in Figure 10 The gum contour, transgingival height, cuff shape, interarch distance and implant implantation direction are used to generate a personalized abutment digital model (as shown in Figure 11 The reference point of the replacement body is used as the reference point to adjust the position of the personalized abutment digital model. As described above, after scanning the implant impression by 3shape, the software will automatically flip the data to restore the implant impression scanning data to the shape of the gypsum scanning digital model. Through the three-dimensional data of the patient's oral cavity, a suitable replacement body can be selected, and the replacement body is inserted into the reference point position of the missing tooth in the gypsum scanning data shape. Then, according to the replacement body, the corresponding abutment is matched, the gum contour, transgingival height and cuff shape of the abutment are determined according to the three-dimensional data of the missing tooth gum, and the height of the standard abutment digital model is personalized designed according to the three-dimensional data of the opposite tooth. And combined with the gum contour, transgingival height, cuff shape, interarch distance and implant implantation direction, a personalized abutment digital model is generated. Then, the reference point of the replacement body is used as the reference point to adjust the position of the personalized abutment three-dimensional data.

[0084] It is also necessary to select the neck edge of the personalized abutment digital model according to the requirements of the clinic, that is, to be located subgingivally or to be flush with the gum, and to design a V-shaped groove on the top of the abutment, and finally to design a personalized abutment digital model that meets the actual situation of the patient.

[0085] It can also include another step: S350, store the personalized abutment digital model into the database of the design software to form a new personalized abutment three-dimensional data model, and use the shape parameters of the gum contour, transgingival height and cuff shape as matching elements for automatic matching in the next design.

[0086] In a specific process, after importing the patient's oral scan data next time, before steps S330 and S340, the imported patient's oral scan data (for example, the three-dimensional data of the opposite teeth) can also be imported to search for the matching elements in the database, such as the gingival contour, the transgingival height, and the sleeve shape, to find the pre-stored personalized abutment three-dimensional data model with the smallest difference, and directly export the model to the display interface of the software. Then step S340 is executed. The amount of editing tasks can be greatly reduced, and the efficiency is improved.

[0087] S400, editing a crown digital model based on the personalized abutment digital model, the crown digital model matching different adjustment parameters according to different implant restoration modes, wherein the adjustment parameters at least include: adhesive parameters, additional adhesive parameters, distance to the marginal line, smoothing distance, bur radius and bur compensation distance.

[0088] Specifically, the crown digital model is edited based on the personalized abutment digital model (as shown in Figure 18 After the design of the personalized abutment is completed, the upper restoration body needs to be designed synchronously, and the anatomic shape of the crown is designed. Considering factors such as dental arch curvature, jaw curve, overbite, size ratio of opposite teeth, jaw plane, etc., the anatomic shape of the crown is designed. The designed crown needs to meet the standards of adjacency, occlusion, edge, shape and color. Different implant restoration modes (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, distance to the marginal line, smoothing distance, bur radius and bur compensation distance. Finally, according to the implant restoration mode, it is selected whether to open a hole in the crown (screw retention needs to open a hole, and adhesive retention does not need to open a hole). For different materials, the adjustment parameters are as follows:

[0089]

[0090] The numerical table of the adjustment parameters of the crown digital model of different implant restoration modes

[0091] The adjustment parameters of the crown digital model set according to the different implant restoration modes in the above table, the virtual data obtained during the restoration design corresponds to the sintered crystalline crown with a 1:1 size of the abutment. It is the best value when designing the crown digital model. It can ensure the precise assembly of the implant upper crown and the abutment. The crown and the abutment are perfectly matched and achieve excellent repositioning connection.

[0092] Among them, step S400 includes the following steps:

[0093] S410, design the anatomical form data of the crown of the missing tooth according to the personalized abutment digital model, wherein the anatomical form data at least includes: dental arch curvature, jaw curve, size ratio of the contralateral homonym tooth, jaw plane;

[0094] S420, generate the digital model of the crown according to the anatomical form data of the crown, so that the digital model of the crown matches the gum contour, the transgingival height, and the cuff form of the personalized abutment digital model.

[0095] Specifically, on the plaster scanning digital model, the anatomical form data three-dimensional data of the crown of the missing tooth is designed according to the personalized abutment digital model, the anatomical form data three-dimensional data at least includes: dental arch curvature, jaw curve, size ratio of the contralateral homonym tooth, jaw plane. The anatomical form data three-dimensional data of the crown matches the gum contour, the transgingival height, and the cuff form of the personalized abutment digital model. The three-dimensional data of the crown of the missing tooth is instantiated to generate the digital model of the crown of the missing tooth based on the personalized abutment digital model. Then, the oral cavity model is edited in combination with the three-dimensional data of the patient's oral cavity, the personalized abutment digital model, and the digital model of the crown of the missing tooth.

[0096] S500, edit the plaster scanning digital model in combination with the personalized abutment digital model and the digital model of the crown of the missing tooth, thereby obtaining the digital model of the oral cavity.

[0097] After designing the personalized abutment digital model and the digital model of the crown of the missing tooth, the bite plane model is set on the plaster scanning digital model according to the three-dimensional data of the patient's oral cavity. Then, the bite plane model is trimmed, the excess part of the bite plane model is trimmed, and the complete dentition, the palatal rugae, the frenulum, and the mucosal rugae of the bite plane model are retained. Then, the bite plane model is added with a jaw frame label, the gum is edited according to the plaster scanning digital model, the personalized abutment digital model, and the digital model of the crown of the missing tooth, and the digital model of the oral cavity is visualized according to the plaster scanning digital model and the gum. Figure 16 The effect picture of the generated digital model of the oral cavity is shown in the figure, in which the hole of the substitute body on the gum is matched with the personalized abutment digital model and the digital model of the crown (as shown in Figure 17 and Figure 18 ).

[0098] Step S500 specifically includes:

[0099] S510, modify the plaster scanning digital model according to the personalized abutment digital model and the digital model of the crown, trim the excess part of the plaster scanning digital model, and retain the complete dentition, the palatal rugae, the frenulum, and the mucosal rugae of the plaster scanning digital model.

[0100] Specifically, the bite plane model is set on the plaster scanning digital model according to the three-dimensional data of the patient's oral cavity, the personalized abutment digital model, and the digital model of the crown of the missing tooth (as shown inFigure 12 trimming the plaster scan digital model, trimming the excess part of the plaster scan digital model, keeping the complete dentition, palatal rugae, frenulum and mucosal folds of the plaster scan digital model (as shown in Figure 13

[0101] S520, adding the frame label to the trimmed plaster scan digital model.

[0102] Specifically, adding the frame label to the occlusal plane model obtained after trimming the plaster scan digital model (as shown in Figure 14

[0103] S530, according to the shape of the plaster scan digital model, the personalized abutment digital model and the crown digital model, editing the size, direction and position of the gingiva on the plaster scan digital model.

[0104] Specifically, editing the gingiva according to the plaster scan digital model, the personalized abutment digital model and the crown digital model of the missing tooth (as shown in Figure 19 Figure 15

[0105] S600, processing the personalized abutment digital model, the crown digital model and the oral digital model to form the personalized abutment, the crown and the oral model.

[0106] Specifically, the personalized abutment digital model, the crown and the oral model are produced by different processing methods to form the personalized abutment digital model, the crown and the oral model. For example, the personalized abutment digital model, the crown digital model and the oral model are formed into processing data, and then processed and printed according to the processing data to obtain the personalized abutment, the crown and the oral model.

[0107] Step S600 specifically includes:

[0108] Step S610, transmitting the data of the personalized abutment digital model to the corresponding cutting equipment to make the cutting equipment cut the abutment blank to form the personalized abutment.

[0109] ​​​​The personalized abutment is obtained by processing on a standard finished abutment. During the waiting period for purchasing the finished abutment, the crown cutting is carried out synchronously, and the 3D printing of the real object of the oral model is carried out. After the finished abutment is delivered, the data of the completed personalized abutment digital model are called to process, so that the finished abutment is processed to be consistent with the shape of the personalized abutment digital model, and finally the precision assembly is completed, thereby improving the precision and production efficiency of the implant upper crown. The steps of traditional pouring plaster work model, grinding abutment, adjusting the abutment and occlusion of the crown are avoided, the cost is reduced, the work efficiency is improved, and the method has guiding significance for the production process of the denture, so that the production process of the denture is more standardized.

[0110] In the embodiment, the cutting equipment for processing the finished abutment adopts four sets of cutters to sequentially grind the abutment blank, so that the surface of the abutment reaches a gap difference of 0.01; the radius of the T1 cutter is 1.5 mm, the radius of the T2 cutter is 1.0 mm, the radius of the T3 cutter is 0.75 mm, and the radius of the T4 cutter is 0.5 mm. The processing cutters are executed according to the strategy, the surface of the finished abutment is precisely processed to reach a gap difference of 0.01, and the consistency of the shape of the formed personalized abutment with the designed data is ensured.

[0111] In step S620, the data of the crown digital model are transmitted to the corresponding cutting equipment, so that the cutting equipment cuts and sinter the crown blank to form the crown.

[0112] In the embodiment, the cutting equipment for processing the crown blank adopts three sets of cutters to sequentially coarsely grind, trim and finely grind the crown blank. The coarsely grinding form adopts a No. 1 cutter with a radius of 0.75 mm, the trimming form adopts a No. 2 cutter with a radius of 0.5 mm, and the finely grinding form adopts a No. 3 cutter with a minimum radius of 0.3 mm. The above selects the diameter and tool path of the test verification cutter according to the layout mode to cut the abutment, sets four sets of cutters to precisely grind the finished abutment, and the radius sizes are sequentially selected in the order of T1 = 1.5 mm, T2 = 1.0 mm, T3 = 0.75 mm, and T4 = 0.5 mm. According to the processing strategy, the surface of the abutment is precisely processed to reach a gap difference of 0.01. The present technology solves the problem of different clamps for cutters: the clamp used for the personalized abutment generally uses a positive clamp or a double clamp to fix the titanium column, but both of them are fixed in the form of a support rod, which causes damage to the jaw surface.

[0113] According to the cutting of the crown, the data of the compensation angle of the needle in the crown are expanded and supplemented, the key crown inside the crown is coarsely ground by a No. 1 cutter with a radius of 0.75 mm, trimmed by a No. 2 cutter with a radius of 0.5 mm, and finely ground by a No. 3 cutter with a minimum radius of 0.3 mm. Thus, the tool path of the crown inside is completely and finely cut.

[0114] The parameter template of the cutting machine, the turning needle of the matching equipment machine tool and the clamp are used to achieve high-precision cutting requirements, so as to achieve the key role of meeting the precise assembly of the implant upper repair crown and the finished product base after sintering of the implant upper repair crown. The processing parameter template requirements are as follows:

[0115] Parameter setting Value Parameter setting Value Draft angle / ° 2.0 Mesh 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

[0116] Processing parameter template requirements

[0117] Step S630, transmit the data of the oral digital model to the printing equipment for 3D printing to obtain the oral model.

[0118] In the above process, according to the standards of the tightness of the base and the restoration, the edge tightness, and the anti-rotation determination, the finished product base machined by the machine is compared with the ground base after the scanning-designing-cutting of the present process flow; the machining integrated molding precision is higher, the tightness is better, and the requirements of production are met. After the cutting, the base and the crown are assembled in place, and the occlusion and the adjacent on the model are consistent with the design, and there is no deflection phenomenon. In the embodiment, the base and the crown formed are obtained. The precision device of the implant upper repair crown and the finished product base of various material types meets the good positioning effect of the tight fit, and meets the inspection standard of synchronous completion of the base, the crown and the model. The specific effect data are as follows:

[0119]

[0120] Inspection results of synchronous completion of the base, the crown and the model

[0121] Finally, the product is polished, cleaned and finished.

[0122] Example Two

[0123] As shown in Figure 3 In order to achieve the above-mentioned purposes, the application also provides a device, which comprises a processor 10, a memory 20, a display 30 and a processing equipment. Figure 3 Only part of the components of the device are shown, but it should be understood that it is not required to implement all the shown components, and more or fewer components can be alternatively implemented.

[0124] The memory 20 can be an internal storage unit of the device, such as a hard disk or a memory of the device, in some embodiments. The memory 20 can also be an external storage device of the device, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. equipped on the device, in other embodiments. Further, the memory 20 can include both an internal storage unit and an external storage device of the device. The memory 20 is used to store application software installed on the device and various types of data, such as program codes of the installed device, etc. The memory 20 can also be used to temporarily store data that has been output or will be output. In an embodiment, the memory 20 stores a digital implant restoration program 40 that can be executed by the processor 10 to implement the digital implant restoration method of the present application.

[0125] The processor 10 can be a central processing unit (CPU), a microprocessor, or other data processing chip, used to run program codes or process data stored in the memory 20, such as to execute the digital implant restoration method, in some embodiments.

[0126] The display 30 can be an LED display, a liquid crystal display, a touch liquid crystal display, an OLED (Organic Light-Emitting Diode) touch, etc. in some embodiments. The display 30 is used to display information of the device and to display a visualized user interface. The components 10-30 of the device communicate with each other through a system bus.

[0127] In an embodiment, the following steps are implemented when the processor 10 executes the digital implant restoration program 40 in the memory 20:

[0128] scanning an implant impression to obtain oral scanning data of a patient, wherein the implant impression is pre-formed with an intraoral shape of the patient; importing the oral scanning data of the patient into a design software to generate a gypsum scanning digital model;

[0129] According to the model of the substitute body on the implant impression, data in a database in the design software is called and a personalized abutment digital model is generated by adjustment;

[0130] The crown digital model is edited based on the personalized abutment digital model, and the crown digital model matches different adjustment parameters according to different implant restoration modes, so that the crown digital model matches the personalized abutment digital model, wherein the adjustment parameters at least include: adhesive parameters, additional adhesive parameters, distance to the marginal line, smoothing distance, pin radius and pin compensation spacing;

[0131] The plaster scanning digital model is edited in combination with the personalized abutment digital model and the crown digital model of the missing tooth, so as to obtain the oral digital model.

[0132] The personalized abutment digital model, the crown digital model and the oral digital model are processed to form the personalized abutment, the crown and the oral model.

[0133] Embodiment three

[0134] The application also provides a computer readable storage medium, wherein the computer readable storage medium stores an optimization program for digital implant restoration, and the optimization program for digital implant restoration, when executed by a processor, implements the steps of the optimization method for digital implant restoration as described above.

[0135] To sum up, the application provides a digital implant restoration method and device and a computer readable storage medium. The scheme of the application can simultaneously perform crown cutting and 3D printing of the oral model during the waiting period for purchasing the finished abutment. After the finished abutment is delivered, the data of the completed personalized abutment digital model are called to process the finished abutment, so that the finished abutment is consistent with the shape of the personalized abutment digital model after processing, and finally the precise assembly is completed, thereby improving the precision and production efficiency of the implant upper crown. The steps of traditional pouring of a gypsum working model, grinding of the abutment, and adjustment of the crown abutment and occlusion are avoided, the cost is reduced, the work efficiency is improved, and the method has guiding significance for the production process of the denture, so that the production process of the denture is more standardized. After the staff selects the abutment model, the corresponding abutment model tool kit developed is directly matched for the design of the finished abutment and the upper crown. The parameters of the abutment need to be tested and adjusted during the design. The shoulder radius of the finished abutment, the top corner radius and other parameters have been tested. According to the abutment parameters, the appropriate adhesive gap, additional gap, distance to the edge line, smoothing distance and other parameters are adjusted, and the parameter template, the needle and the clamp of the cutting machine are continuously adjusted to meet the high-precision cutting requirements. During the waiting period for purchasing the finished abutment, the crown cutting and model 3D printing are simultaneously performed. After the finished abutment is delivered, the data of the finished abutment with the completed personalized design are called to process the abutment, and finally the precise assembly is completed, thereby improving the precision and production efficiency of the implant upper restoration crown. Thus, the process flow of synchronous processing of the abutment, the crown and the model can be completed, the steps of traditional pouring of a gypsum working model, grinding of the abutment, and adjustment of the crown abutment and occlusion are avoided, the cost is reduced, the work efficiency is improved, and the method has guiding significance for the production process of the denture, so that the production process of the denture is more standardized.

[0136] The above merely describes preferred embodiments of the application and is not intended to limit the application. Any modification, equivalent replacement and improvement within the spirit and principle of the application should be included in the protection scope of the application.

Claims

1. A method of digitalized implant restoration, characterized in that, The method includes the following steps: Scan the implant impression to obtain the patient's oral cavity scan data, where the implant impression has the patient's intraoral shape pre-formed on it; Import the patient's oral cavity scan data into the design software to generate a plaster scan digital model; Based on the model of the substitute on the planting impression, data is retrieved from the database in the design software, and a personalized digital model of the base is generated. The crown digital model is edited based on the personalized abutment digital model. The crown digital model is matched with different adjustment parameters according to different implant restoration methods to make the crown digital model match the personalized abutment digital model. The adjustment parameters include at least: adhesive parameters, additional adhesive parameters, distance to the margin line, smoothing distance, bur radius, and bur compensation spacing. By combining the personalized abutment digital model and the crown digital model of the missing tooth, the plaster scan digital model is edited to obtain the oral cavity digital model; The personalized abutment digital model, crown digital model, and oral cavity digital model are processed to form a personalized abutment, crown, and oral cavity model.

2. The method of claim 1, wherein, The step of scanning the implant impression to acquire the patient's oral cavity scan data, wherein the implant impression pre-formed with the patient's intraoral shape includes: The transfer rod is attached to the implant in the patient's mouth, and three-dimensional data of the patient's mouth is collected through the implant impression, so that the transfer rod is fixed on the implant impression; Remove the implant impression from the patient's mouth and reposition the replacement body on the transfer rod on the implant impression to simulate the implant. Implant impressions are scanned using a 3D oral scanner to obtain implant impression data.

3. The method of claim 1, wherein the digital implant restoration is a digital implant crown. The steps of retrieving data from the database in the design software based on the model of the substitute on the implantation impression, and adjusting and generating a personalized digital abutment model include: Select the corresponding digital model of the substitute from the substitute database based on the model of the substitute on the planting impression. Insert the digital model of the substitute into the reference point position of the missing tooth in the plaster scan digital model; Based on the implant model database corresponding to the digital model of the replacement body, obtain the model data in the implant model database, and generate a preset abutment three-dimensional data model accordingly. Based on the external parameters of the missing tooth, a three-dimensional data model of the pre-set abutment is designed. Based on the three-dimensional data of the contralateral tooth, the height of the pre-set abutment three-dimensional data model is designed, forming a personalized abutment digital model. The external parameters include: gingival contour, transgingival height, cuff shape, intermaxillary distance, and implant placement direction.

4. The method of claim 1, wherein the digital implant restoration is a digital implant crown. The steps for editing the crown digital model based on the personalized abutment digital model include: ​ The anatomical morphology data of the crown of the missing tooth is designed based on the personalized abutment digital model. The anatomical morphology data includes at least: arch curvature, occlusal curve, size ratio of the contralateral corresponding tooth, and occlusal plane. A digital model of the crown is generated based on the anatomical morphology data of the crown, so that the digital model of the crown matches the gingival contour, transgingival height, and cuff shape of the personalized abutment digital model.

5. The method of claim 4, wherein the digital implant restoration is a digital implant crown. The steps for editing the oral digital model by combining the personalized abutment digital model and the crown digital model of the missing tooth include: According to the individualized abutment digital model and the crown digital model, the plaster scanning digital model is modified, and the redundant part of the plaster scanning digital model is trimmed, and the complete dentition, the palatal rugae, the frenulum and the mucosal folds of the plaster scanning digital model are retained; A jaw frame label is added to the trimmed plaster scanning digital model; According to the shapes of the plaster scanning digital model, the individualized abutment digital model and the crown digital model, the size, direction and position of the gingiva on the plaster scanning digital model are edited.

6. The method of claim 4, wherein the digital implant restoration is a digital implant crown. The step of processing the individualized abutment digital model, the crown digital model and the oral digital model to form the individualized abutment, the crown and the oral model comprises: The data of the individualized abutment digital model is transmitted to the corresponding cutting equipment to make the cutting equipment cut the abutment blank to form the individualized abutment; The data of the crown digital model is transmitted to the corresponding cutting equipment to make the cutting equipment cut the crown blank and sinter to form the crown; The data of the oral digital model is transmitted to the printing equipment for 3D printing to obtain the oral model.

7. The method of digital implant restoration of claim 6, wherein, The step of transmitting the data of the individualized abutment digital model to the corresponding cutting equipment to make the cutting equipment cut the abutment blank to form the individualized abutment comprises: The cutting equipment adopts four sets of cutters to sequentially grind the abutment blank, so that the surface of the abutment reaches a gap difference of 0.01; wherein the diameter of No. 1 cutter is 1.5 mm, the diameter of No. 2 cutter is 1.0 mm, the diameter of No. 3 cutter is 0.75 mm, and the diameter of No. 4 cutter is 0.5 mm.

8. The method of claim 6, wherein the digital implant restoration is a digital implant crown. The step of transmitting the data of the crown digital model to the corresponding cutting equipment to make the cutting equipment cut the crown blank and sinter to form the crown comprises: ​ The cutting equipment adopts three sets of cutters to sequentially roughen, trim and fine grind the crown blank, wherein the diameter of No. 1 cutter for roughening is 0.75 mm, the diameter of No. 2 cutter for trimming is 0.5 mm, and the minimum diameter of No. 3 cutter for fine grinding is 0.3 mm.

9. A digitalized implant restoration device, characterized by, The digital implant restoration device comprises a memory, a processor and a processing equipment, the memory stores a digital implant restoration program, the digital implant restoration program runs on the processor, and the digital implant restoration method of any one of claims 1-8 is realized; the processing equipment is used to process the individualized abutment, the crown and the oral model.

10. A computer-readable storage medium, characterized in that, The computer readable storage medium stores a digital implant restoration program, and the digital implant restoration program is executed by the processor to realize the steps of the digital implant restoration method of any one of claims 1-8.

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