Method of making dental object and system of making dental object

Abstract

The embodiment of the invention is suitable for the technical field of dentistry and 3D printing, and provides a method and system for manufacturing a dental object, the method comprises the following steps: obtaining a dental model, the dental model comprising at least one abutment and a repair part associated with a dental prosthesis model; establishing a stent model, wherein the stent model is configured to be mounted on an abutment tooth; a base model is established, the base model comprises a first part and a second part, the support model is clamped between the first part and the second part, and the first part of the base model is aligned with the repair part of the dental model; establishing a tooth prosthesis model, wherein the tooth prosthesis model is aligned with the second part of the denture model; manufacturing a base plate based on the first part and the second part of the base plate model, and manufacturing a stent based on the stent model; the base and the stent are connected to obtain a dental object. By adopting the method, the dental object can be manufactured in a digital mode, and the manufacturing efficiency and accuracy of the dental object are improved.

Description

Technical Field

[0001] This application relates to the fields of dental and 3D printing technology, and in particular to a method and system for manufacturing dental objects. Background Technology

[0002] Removable prostheses with a superstructure are removable dental restorations. They consist of a metal or resin framework as the main support structure, with artificial teeth, a denture base, and other components restoring the shape and function of the missing teeth. Their key features include stable retention provided by the framework design (such as a framework cast from cobalt-chromium alloy), connection to natural teeth or implants via clasps and attachments, and a denture base covering the alveolar ridge to distribute occlusal forces. They are suitable for patients with multiple or complete edentulism. This restorative method balances strength and aesthetics, facilitates cleaning and maintenance, and can be adjusted to accommodate changes in alveolar bone resorption.

[0003] like Figure 1 The diagram shown is a schematic representation of a restorative denture manufactured using existing technology. Among them, Figure 1 Part (a) shows a prosthesis made using traditional methods. The traditional process for making prostheses is primarily manual, involving taking precise impressions clinically, pouring a working model in a factory, designing the metal framework, arranging the artificial teeth, and creating a wax model. Finally, the prosthesis is assembled, ground, and polished. This entire process is not only tedious and time-consuming but also prone to accuracy reduction due to manual operation. Summary of the Invention

[0004] In view of this, embodiments of this application provide a method and system for fabricating dental objects, which employ digital methods to create dental object models and combine them with 3D printing technology to print the corresponding dental objects, thereby improving the efficiency and accuracy of dental object fabrication. For example, by applying the above-described method and system provided in embodiments of this application, dental objects such as removable prostheses with support frames can be fabricated efficiently and accurately.

[0005] A first aspect of this application provides a method for manufacturing dental objects, comprising:

[0006] Obtain a dental model, the dental model including at least one abutment tooth and a prosthetic portion associated with a dental prosthesis model;

[0007] A scaffold model is created, and the scaffold model is configured to be installed onto the abutment tooth;

[0008] A dental base model is constructed, the dental base model comprising a first part and a second part, wherein the support model is sandwiched between the first part and the second part, and the first part of the dental base model is aligned with the restorative portion of the dental model;

[0009] A dental prosthesis model is created, and the dental prosthesis model is aligned with the second part of the denture base model;

[0010] The base is manufactured based on the first and second parts of the base model, and the support is manufactured based on the support model; and

[0011] Connect the base and the bracket to obtain the dental object.

[0012] A second aspect of this application provides a system for fabricating dental objects, comprising:

[0013] The processor, configured as follows:

[0014] - Obtain a dental model, which includes at least one abutment tooth and a prosthetic portion associated with a dental prosthesis model;

[0015] - Create a scaffold model, which is configured to be installed onto the abutment tooth;

[0016] - Establish a dental base model, the dental base model comprising a first part and a second part, wherein the support model is sandwiched between the first part and the second part, and the first part of the dental base model is aligned with the restorative portion of the dental model;

[0017] - Create a dental prosthesis model, which is aligned with the second part of the denture base model;

[0018] At least one manufacturing unit is configured to manufacture a base based on a first part and a second part of the base model, and to manufacture a support based on the support model; and to connect the base and the support to obtain the dental object.

[0019] A third aspect of this application provides a computer device including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the computer device performs the method described in the first aspect above.

[0020] A fourth aspect of this application provides a computer-readable storage medium storing a computer program that, when executed by a computer, implements the method described in the first aspect above.

[0021] A fifth aspect of this application provides a computer program product, including a computer program that, when run, causes the method described in the first aspect to be executed.

[0022] Compared with the prior art, the embodiments of this application have the following beneficial effects:

[0023] In this embodiment, by acquiring a dental model and establishing a framework model, a base model, and a dental prosthesis model, the framework model can be installed onto the abutment teeth of the dental model. The framework model can be sandwiched between the first and second parts of the base model, ensuring that the first part of the base model is aligned with the restorative part of the dental model, and the second part is aligned with the dental prosthesis model. The framework model and base model constituting the dental object model can be designed digitally. Based on the framework model and base model obtained through modeling, solid manufacturing is performed to obtain the corresponding framework and base. By connecting the framework and base, the final dental object is obtained. Applying the method provided in this embodiment to manufacture dental objects allows for the digital creation of models of dental objects or models of the various units constituting the dental object, improving the accuracy of dental object manufacturing. Manufacturing dental objects based on the established models improves the efficiency of dental object manufacturing.

[0024] In existing technologies, a metal support is used to connect a resin base. However, because resin and metal cannot bond, the base is prone to detachment after bonding. In this embodiment, a support with at least one hole is used, allowing the upper and lower bases to be directly bonded using resin base liquid through the hole. As a chemical adhesive, the resin base liquid enables chemical bonding between the upper and lower bases. The bonding method provided in this embodiment helps improve the strength of the bond.

[0025] Secondly, in the case of removable dentures manufactured using existing technology, the metal framework covers the buccal side of the denture base, and the metal color is clearly visible through the base after bonding. Similarly, the tooth retention in existing technologies uses large metal abutment structures, which also show the metal color after bonding, resulting in an unattractive appearance for both the denture base and the teeth. The embodiments of this application, by using a printed denture base to cover the buccal gingiva, avoid the metal color of the framework being visible through the base, thus improving the aesthetics of the removable denture for the patient.

[0026] Third, in existing technologies, when assembling the movable support and base, the bonding area is located on the upper part of the base, and horizontal lines easily appear at this bonding area after grinding and polishing. The upper base manufactured according to the method provided in the embodiments of this application can completely cover the lower base, and because the bonding area is located at the bottom of the base, no horizontal lines will appear at the bonding area after grinding and polishing the base. Compared with the prior art, the movable denture provided in the embodiments of this application is more aesthetically pleasing and will not have any adverse effects on the user.

[0027] Fourth, in existing technologies, the crowns used in removable dentures are typically made of zirconia, fabricated by machining. During assembly, the zirconia crowns need to be manually bonded to the removable framework. Because zirconia crowns are too hard and heavy, they are unsuitable for removable restorations. Furthermore, bonding zirconia crowns to metal frameworks requires specific adhesives, making the bonding process complex. In addition, a support structure is needed during framework fabrication; removing this structure requires grinding the framework, which can easily cause rotation or tilting during bonding, leading to inaccurate bonding. The solution in this application uses a single-piece printing process for the base and crown, eliminating the bonding operation and ensuring more accurate matching between the crown and base.

[0028] Fifth, existing technologies often use large-area lower bases. When fabricating them horizontally, the support structure needs to be placed on the tissue surface or assembly surface; if fabricated vertically, a support structure also needs to be placed within the assembly surface. Furthermore, grinding is required before bonding, making the process complex and prone to loss of precision. The lower base in this embodiment can be completely enclosed by the upper base, resulting in a smaller volume. The lower base can be fabricated using 3D printing, allowing for vertical printing. The support structure can be placed at the edge of the lower base, and this structure is easily removed after printing.

[0029] Sixth, existing removable dentures use a single sheet of metal to fabricate the framework for the missing tooth, with related structures at the adjacent tooth contact points, affecting aesthetics. Furthermore, if the missing tooth is an anterior tooth, removable dentures made according to existing technology are unusable. This application's embodiment, by designing a base that covers the gum line, can completely cover the framework structure at the adjacent tooth contact points, ensuring the aesthetics of the removable denture. In addition, the removable denture provided in this application embodiment can also be applied to patients with missing anterior teeth, further expanding the applicability of removable dentures.

[0030] Seventh, the embodiments of this application design an integrated base model, which can be separated into an upper base and a lower base using separation software, making the overall operation process relatively simple and convenient. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 These are schematic diagrams related to restorative dentures manufactured using existing technologies;

[0033] Figure 2 This is a schematic diagram of a method for manufacturing dental objects according to an embodiment of this application;

[0034] Figure 3 This is a schematic diagram illustrating the structural relationship between a dental object and a dental model, provided in an embodiment of this application.

[0035] Figure 4 This is a schematic diagram of a support model provided in an embodiment of this application;

[0036] Figure 5 This is a schematic diagram of a baseboard model provided in an embodiment of this application;

[0037] Figure 6 This is a schematic diagram illustrating the connection relationship between a base and a support according to an embodiment of this application;

[0038] Figure 7 This is a schematic diagram of a printing method provided in an embodiment of this application;

[0039] Figure 8 This is a schematic diagram of an installation feature provided in an embodiment of this application;

[0040] Figure 9 This is a schematic diagram of a system for fabricating dental objects provided in an embodiment of this application;

[0041] Figure 10 This is a schematic diagram of a computer device provided in an embodiment of this application. Detailed Implementation

[0042] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0043] The technical solution of this application will be described below through specific embodiments.

[0044] Reference Figure 2 The diagram illustrates a method for manufacturing dental objects according to an embodiment of this application, which may specifically include the following steps:

[0045] S201. Obtain a dental model, the dental model including at least one abutment tooth and a prosthetic portion associated with the dental prosthesis model.

[0046] This method can be applied to systems for manufacturing dental objects. That is, the subject of this method can be a system for manufacturing dental objects. By executing the various steps of this method, the system can manufacture the corresponding dental objects.

[0047] In one possible implementation of this application, the system for manufacturing dental objects may include a processor and at least one manufacturing unit. The processor may be configured to handle functions related to various digital models. For example, acquiring or creating various models required for manufacturing the dental object. The manufacturing unit may be used to perform corresponding manufacturing based on the digital models. For example, 3D printing of the dental object or its components represented by the digital model, and connecting and assembling the dental object or its components according to corresponding connection or assembly relationships to obtain the dental object.

[0048] In the embodiments of this application, dental objects can be objects related to oral treatment and tooth restoration. For example, dental objects can be restorative dentures or removable restorative dentures including a framework and base. This application does not limit this specific application.

[0049] like Figure 3 The diagram shown is a schematic representation of the structural relationship between a dental object and a dental model provided in an embodiment of this application. Figure 3 In the dental mold, there are abutment teeth 912 and 914, and a framework 920 is used to fix them to the abutment teeth 912 and 914. A first portion 932 and a second portion 934 of the denture base sandwich the framework 920 in between. A prosthesis (denture) 940 is arranged on the second portion 934 of the denture base. The prosthesis 940 and the second portion 934 of the denture base can be printed integrally, for example, by dual-material printing. Below, in conjunction with... Figure 3 The structural diagram shown illustrates the digital manufacturing process for dental objects.

[0050] Before digitally creating dental objects, the system can first acquire a dental model, which can be a digital model obtained through oral scans.

[0051] In one possible implementation of this application, the dental model obtained by oral scanning can be generated by scanning the patient's oral cavity with a scanning device such as a CT scanner to obtain corresponding scanning data. The scanning device can transmit the dental model to the system for further processing.

[0052] In another possible implementation of this application embodiment, the dental model obtained through oral scanning can also be obtained by scanning and modeling using other types of digital devices. For example, an intraoral scanner can be used to scan inside a patient's oral cavity to obtain a dental model. Using an intraoral scanner, continuous photographs can be taken inside the patient's oral cavity, obtaining multiple images of various parts of the patient's oral cavity. By processing these images, the complete morphology of the patient's oral cavity can be obtained, which can be characterized by a dental model.

[0053] In this embodiment, taking a dental prosthesis or removable prosthesis as an example, the dental model required for fabricating such a dental object may include at least one abutment tooth and a restorative portion associated with the dental prosthesis model. The abutment tooth is a natural tooth or implant used in oral restoration to support fixed prostheses (such as bridges or crowns), and is a key structure for restoring missing teeth. The restorative portion associated with the dental prosthesis model can refer to a portion designed based on its matching relationship with the dental prosthesis model that can represent the patient's actual missing tooth. The intraoral region of the patient's mouth corresponding to this restorative portion in the dental model is the oral cavity site or area requiring restoration, such as the location of the patient's missing tooth.

[0054] In one possible implementation of this application, the dental model may include a first abutment tooth and a second abutment tooth, and the restorative portion in the dental model may be located between the first abutment tooth and the second abutment tooth. Alternatively, the dental model may include a third abutment tooth, and the restorative portion may be adjacent to the third abutment tooth. Still another possibility is that the dental model includes a first abutment tooth, a second abutment tooth, and a third abutment tooth, and the restorative portion is located not only between the first abutment tooth and the second abutment tooth but also includes a portion adjacent to the third abutment tooth.

[0055] The first, second, and third abutments mentioned above can be abutments used to restore missing teeth in patients. The terms "first," "second," and "third" are only used to distinguish different abutments, and the order of these terms is not limited in the embodiments of this application.

[0056] S202. Establish a scaffold model, which is configured to be installed on the abutment tooth.

[0057] The framework model is a digital model that can be obtained by modeling the abutment teeth included in the dental model. The established abutment tooth model can be installed on the abutment tooth site of the dental model.

[0058] In one possible implementation of this application embodiment, the scaffold model can be used to fabricate a scaffold in a subsequent process, which can be a component of a prosthesis or a removable prosthesis.

[0059] like Figure 4 The diagram shown is a schematic diagram of a support model provided in an embodiment of this application. Figure 4 The bracket model shown includes multiple holes that can be used to connect the baseplate model during subsequent manufacturing processes, helping to secure the first and second parts of the baseplate model.

[0060] S203. Establish a dental base model, the dental base model comprising a first part and a second part, wherein the support model is sandwiched between the first part and the second part, and the first part of the dental base model is aligned with the restorative part of the dental model.

[0061] The Kittor model is a digital model, which can be obtained through digital modeling.

[0062] In the embodiments of this application, the basement model may include a first part and a second part. For example, the first part may be the lower basement model, i.e., the lower basement model, and the second part may be the upper basement model, i.e., the upper basement model. In this way, the upper basement model and the lower basement model can constitute a complete basement model.

[0063] The denture base model, as a component of the prosthesis, should be aligned with the prosthesis portion in the dental model. Specifically, the part aligned with the prosthesis portion in the dental model can be the first part of the denture base model, i.e., the lower denture base model. In the structure of the prosthesis, the lower denture base model can refer to the denture base model closer to the gingiva.

[0064] The scaffold model established in S202 can be sandwiched between the first and second parts of the base model. In this way, the scaffold model can provide support for the base model.

[0065] like Figure 5 The image shown is a schematic diagram of a baseplate model provided in an embodiment of this application. Figure 5 Part (a) shows the first part 510 of the base model, namely the lower base model; Figure 5 Part (b) shows the second part 520 of the basement model, namely the upper basement model, which shows a schematic diagram of its lingual portion. Figure 4 The bracket model shown can be clamped in Figure 5 Between the first part shown in part (a) and the second part shown in part (b).

[0066] In one possible implementation of the embodiments of this application, see [link to relevant documentation]. Figure 4 The support model may include at least one hole sandwiched between the first and second parts of the base model. The support model can be connected to the base model through the hole structure to provide support for the base model.

[0067] In this embodiment, the modeling of the basement model can be achieved by performing Boolean operations with the scaffold model. Specifically, an initial basement model can first be modeled to obtain an initial model, and then the scaffold model is used to perform a Boolean difference with the initial basement model to determine the first part and the second part that make up the basement model. The first part and the second part together constitute the basement model.

[0068] S204. Establish a dental prosthesis model, and align the dental prosthesis model with the second part of the base model.

[0069] A dental prosthesis model can be obtained by modeling the teeth that the patient actually needs to restore. Based on this model, a prosthesis can be fabricated to repair the patient's missing teeth. When creating the dental prosthesis model, it is essential to ensure that the model is aligned with the denture base model. Specifically, the dental prosthesis model should be aligned with the second part of the denture base model, namely the upper denture base model, which can refer to the part of the base model closer to the crown.

[0070] S205. Manufacture a base based on the first and second parts of the base model, and manufacture a support based on the support model.

[0071] After obtaining the base and support models through modeling, the base and support can be manufactured based on these models. That is, the base is manufactured based on the base model, and the support is manufactured based on the support model. The first and second parts of the base model can be manufactured separately. For example, the first and second parts of the base can be manufactured separately, and then combined to form the base. Alternatively, the base, including both the first and second parts, can be manufactured as a single piece.

[0072] In one possible implementation of this application embodiment, the base and bracket can be manufactured using 3D printing.

[0073] The process of manufacturing the dental base and support can be completed by at least one manufacturing unit in the aforementioned system for manufacturing dental objects. For example, the manufacturing unit can be a 3D printing device. Thus, the 3D printing device can use 3D printing technology to manufacture the dental base and support.

[0074] In the embodiments of this application, the base can be obtained by additive manufacturing.

[0075] In one example, the manufacturing unit can use additive manufacturing to create the base using a photosensitive resin. In another example, when using a photosensitive resin material to manufacture the base, supports can also be provided at the edges of the base.

[0076] In one possible implementation of this application, when the manufacturing unit obtains the denture base through additive manufacturing, it can integrally form the second part of the denture base and the dental prosthesis using both the denture base material and the dental prosthesis material. In this way, the dental prosthesis can be integrally printed with the denture base, and the resulting second part of the denture base also includes the dental prosthesis. By integrally printing the dental prosthesis and denture base, the process of bonding the second part of the denture base and the crown is saved, further improving the bonding accuracy between the crown and the second part of the denture base. The specific method for integrally fabricating the dental prosthesis and denture base through additive manufacturing can employ multi-material preparation methods, as described in, for example, the relevant description in Chinese patent application number 202411553161.3, which will not be repeated here.

[0077] Combination Figure 1 As shown in section (g) of the prior art, dental crowns are fabricated by cutting zirconia and then manually bonded to the framework. Since cut zirconia typically has high strength, it easily wears down teeth and is unsuitable for manufacturing restorative dentures. Furthermore, bonding zirconia to metal requires specific adhesives, making the bonding process complex. The embodiments of this application use resin crowns, which reduces wear on teeth. Moreover, the embodiments of this application use a one-piece printing method for the dental prosthesis and base, which avoids the bonding process and allows for a more accurate positional relationship between the dental prosthesis and the base.

[0078] The framework manufactured by the manufacturing unit can extend along the alignment direction of the dental prosthesis, and the second part of the base can cover the framework in a direction perpendicular to the alignment direction. In this way, the second part of the base can completely cover the framework, improving the aesthetics of the final dental object.

[0079] Combination Figure 1 As shown in parts (b), (e), and (f), existing prostheses use a metal framework covering the buccal base. After the base and framework are bonded, the metal color shows through the base. Furthermore, due to the use of large metal abutment structures in existing technologies, the metal color also shows through the base after bonding, making both the base and teeth aesthetically unappealing. The embodiments of this application use a base that covers both the framework and the buccal gingiva, resulting in a more aesthetically pleasing outcome. In addition, combined with… Figure 1 As shown in section (h), the existing framework design uses a single sheet of metal for the missing tooth portion. While there is a metal framework at the adjacent tooth junction, there is no base covering it, severely impacting aesthetics and usability. Furthermore, if the missing tooth is an anterior tooth, then... Figure 1 The bracket and base design shown in section (h) is completely unusable. For example... Figure 6The diagram shown illustrates the connection between a denture base and a support frame according to an embodiment of this application. As shown, the denture base 620 completely covers the buccal gingiva, and no metallic color shows through the denture base 640. Compared to existing technologies, the denture base provided in this embodiment is more aesthetically pleasing.

[0080] On the other hand, combining Figure 1 As shown in section (f), the existing technology uses a large-area lower base design. During printing, if printing horizontally, support needs to be added to the tissue surface or assembly surface; if printing vertically, support needs to be provided within the assembly surface. The support needs to be sanded before bonding, making the operation complex and prone to loss of accuracy. Figure 7 The diagram shown is a schematic of a printing method provided in an embodiment of this application. In this embodiment, the lower base is wrapped by the upper base. The area of ​​the lower base is small, so it can be printed vertically. The support during printing can be set only at the edge of the lower base, which is easy to remove.

[0081] In this embodiment, the manufacturing unit can also manufacture a dental mold based on the acquired dental model. The manufacturing process of the dental mold can also be achieved by 3D printing, that is, by using 3D printing technology to print the dental model to obtain the corresponding dental mold.

[0082] S206. Connect the base and the bracket to obtain the dental object.

[0083] Because the framework model is modeled as being sandwiched between the first and second parts of the base model, the framework model has a corresponding assembly or connection relationship with the first and second parts of the base model. After the base and framework are manufactured, the manufacturing unit can connect them to assemble the final dental object. For example, a removable prosthesis or a restorative denture.

[0084] In one possible implementation of this application embodiment, the support model includes at least one hole sandwiched between the first and second parts of the base model. Accordingly, the manufactured support also includes at least one hole through which the support and the base can be connected.

[0085] For example, the first and second parts of the base model can be configured to be made of a target photosensitive resin material. Thus, the base can be manufactured using the photosensitive resin via additive manufacturing.

[0086] During the process of connecting the support and the base, the manufacturing unit can apply a target photosensitive resin material to at least one hole in the support model, and then expose the target photosensitive resin material to cure it. Since the base is also made of the same target photosensitive resin material, the cured target photosensitive resin material applied to the hole in the support can connect the base and the support, ensuring a secure connection between them.

[0087] In one possible implementation, the target photosensitive resin material used to manufacture the base and the target photosensitive resin material applied to at least one hole in the support can be the same photosensitive resin material. In another possible implementation, the target photosensitive resin material used to manufacture the base and the target photosensitive resin material applied to at least one hole in the support can be different photosensitive resin materials but with similar material properties. Manufacturing the base and connecting the base and support in both of these ways ensures a secure connection between the support and the base.

[0088] In another possible implementation of this application, the manufacturing unit may also use an adhesive to fix the base to the bracket. This application does not limit the specific type of adhesive used.

[0089] For example, a resin adhesive can be used to bond the base and the support, with the bonding location at the bottom of the base. Since the support includes at least one hole (various shapes are permitted, such as triangular, circular, rectangular, and hexagonal), using a resin adhesive to bond the base and support allows the first and second parts of the base to be directly bonded through the hole. Thus, compared to the related art where the resin base is directly bonded to the metal support, which often results in detachment due to the inability of the resin to bond with the metal, this embodiment uses a chemical adhesive to directly bond the base and support, further improving the strength of the bond.

[0090] Combination Figure 1 As shown in parts (c) and (d) of the prior art, the bonding position between the base and the bracket is located on the upper part of the base. After grinding and polishing the base and the bracket, a horizontal line is easily found at the bonding position, for example... Figure 1 The horizontal lines indicated by the red arrows in parts (c) and (d) affect the aesthetics of use. In the solution provided in this application embodiment, the bonding position between the base and the bracket is located at the bottom of the base. After grinding and polishing the base and bracket, similar horizontal lines will not appear.

[0091] In another possible implementation of this application embodiment, the bracket and the base can also be connected based on specific structural features. Specifically, the bracket model may have a first mounting feature, and a first portion of the base model may have a first mating feature complementary to the first mounting feature. Thus, through the mating of the first mounting feature and the first mating feature, the manufactured bracket can be connected to the first portion of the base. On the other hand, the bracket model may also have a second mounting feature, and a second portion of the base model may have a second mating feature complementary to the second mounting feature. Thus, through the mating of the second mounting feature and the second mating feature, the manufactured bracket can be connected to the second portion of the base. For example... Figure 8The diagram shown is a schematic representation of an installation feature provided in an embodiment of this application. Figure 8 The installation feature shown is located at Figure 4 The mounting features on the bracket model shown. Figure 8 Part (a) shows the mounting feature 820, which is complementary to the second part of the base model in the bracket model. Figure 8 Part (b) shows mounting feature 840 in the bracket model that is complementary to the first part of the base model. See also Figure 8 The mounting features marked with red boxes in parts (a) and (b) are both protrusions. Figure 8 The protrusion in part (a), which is a complementary installation feature to the second part of the base model, is a semi-cylindrical protrusion. It can serve as a positioning structure for the second part of the base model to fix the upper base model. Figure 8 The protrusion in part (b), which is a cylindrical protrusion that complements the first part of the base model, can serve as a positioning structure for the first part of the base model to fix the lower base model.

[0092] For example, the first mounting feature may be a hole, and correspondingly, the first mating feature may be a protrusion. Thus, when connecting the bracket and the base, the protrusion on the first portion of the base can be inserted into the hole on the bracket, allowing the bracket to be securely connected to the first portion of the base. See, for example, [link to relevant documentation]. Figure 5 In part (a), the support model has a hole, and the first part of the base model has a protrusion complementary to the hole, which is embedded in the hole to form... Figure 5 The connection structure shown in part (a) of the diagram.

[0093] Alternatively, the first mounting feature can be a protrusion, and correspondingly, the first mating feature can be a hole. In this way, the protrusion on the bracket can be inserted into the hole in the first part of the base, thus achieving a secure connection between the bracket and the first part of the base.

[0094] Similarly, the second mounting feature can be a hole, and correspondingly, the second mating feature can be a protrusion. Thus, when connecting the bracket and the base, the protrusion on the second portion of the base can be inserted into the hole on the bracket, allowing the bracket to be securely connected to the second portion of the base.

[0095] Alternatively, the second mounting feature can be a protrusion, and correspondingly, the second mating feature can be a hole. In this way, the protrusion on the bracket can also be inserted into the hole in the second part of the base, thus achieving a secure connection between the bracket and the second part of the base.

[0096] In this embodiment, by acquiring a dental model and establishing a framework model, a base model, and a dental prosthesis model, the framework model can be installed onto the abutment teeth of the dental model. The framework model can be sandwiched between the first and second parts of the base model, ensuring that the first part of the base model is aligned with the restorative part of the dental model and the second part is aligned with the dental prosthesis model. The framework model and base model constituting the dental object model can be designed digitally. Based on the modeled framework and base models, physical manufacturing is performed to obtain the corresponding framework and base. By connecting the framework and base, the final dental object can be obtained. Applying the method provided in this embodiment to manufacture dental objects allows for the digital creation of models of the dental object or models of the various units constituting the dental object, improving the accuracy of dental object manufacturing. Manufacturing dental objects based on established models improves the efficiency of dental object manufacturing.

[0097] Based on the foregoing descriptions of the various embodiments, this application also provides a system for fabricating dental objects. For example... Figure 9 The diagram shown is a schematic of a system for manufacturing dental objects according to an embodiment of this application. The system 900 may include a processor 901 and at least one manufacturing unit 902, wherein:

[0098] Processor 901 is configured as follows:

[0099] - Obtain a dental model, which includes at least one abutment tooth and a prosthetic portion associated with a dental prosthesis model;

[0100] - Create a scaffold model, which is configured to be installed onto the abutment tooth;

[0101] - Establish a dental base model, the dental base model comprising a first part and a second part, wherein the support model is sandwiched between the first part and the second part, and the first part of the dental base model is aligned with the restorative portion of the dental model;

[0102] - Create a dental prosthesis model, which is aligned with the second part of the denture base model;

[0103] At least one manufacturing unit 902 is configured to manufacture a base based on a first part and a second part of the base model, and to manufacture a support based on the support model; and to connect the base and the support to obtain the dental object 903.

[0104] The functions implemented by the processor 901 and the manufacturing unit 902 can be found in the descriptions of the aforementioned method embodiments, and will not be repeated here.

[0105] Reference Figure 10The diagram illustrates a computer device provided in an embodiment of this application. Figure 10 As shown, the computer device 1000 in this embodiment includes: a processor 1010, a memory 1020, and a computer program 1021 stored in the memory 1020 and executable on the processor 1010. When the processor 1010 executes the computer program 1021, it implements the steps in the various embodiments of the method for fabricating dental objects described above, for example... Figure 2 Steps S201 to S206 are shown. Alternatively, the processor 1010 may implement the computer program 1021 when executing the computer program. Figure 9 The processor 901 shown has the following functions. The computer device 1000 can be connected to at least one manufacturing unit to control the manufacturing unit to manufacture a dental base and a dental frame based on established base and frame models, and to connect the two to obtain a dental object. For example, the manufacturing unit connected to the computer device 1000 could be… Figure 9 Manufacturing unit 902 in the middle.

[0106] For example, the computer program 1021 may be divided into one or more modules / units, which are stored in the memory 1020 and executed by the processor 1010 to complete this application. The one or more modules / units may be a series of computer program instruction segments capable of performing specific functions, which may be used to describe the execution process of the computer program 1021 in the computer device 1000.

[0107] The computer device 1000 may be an electronic device capable of performing the relevant steps in the aforementioned method embodiments for fabricating dental objects. The computer device 1000 may be a desktop computer, a cloud server, or other similar device. The computer device 1000 may include, but is not limited to, a processor 1010 and a memory 1020. Those skilled in the art will understand that... Figure 10 This is merely one example of computer device 1000 and does not constitute a limitation on computer device 1000. It may include more or fewer components than shown, or combine certain components, or different components. For example, computer device 1000 may also include input / output devices, network access devices, buses, etc.

[0108] The processor 1010 can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor or any conventional processor.

[0109] The memory 1020 can be an internal storage unit of the computer device 1000, such as a hard disk or RAM of the computer device 1000. The memory 1020 can also be an external storage device of the computer device 1000, such as a plug-in hard disk, Smart Media Card (SMC), Secure Digital (SD) card, Flash Card, etc., equipped on the computer device 1000. Furthermore, the memory 1020 can include both internal and external storage units of the computer device 1000. The memory 1020 is used to store the computer program 1021 and other programs and data required by the computer device 1000. The memory 1020 can also be used to temporarily store data that has been output or will be output.

[0110] This application also discloses a computer device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, it implements the methods described in the foregoing embodiments.

[0111] This application also discloses a computer-readable storage medium storing a computer program that, when executed by a computer, implements the methods described in the foregoing embodiments.

[0112] This application also discloses a computer program product, including a computer program that, when run on a computer, causes the computer to perform the methods described in the foregoing embodiments.

[0113] The embodiments described above are only used to illustrate the technical solutions of this application, and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A method for manufacturing dental objects, characterized in that, include: Obtain a dental model, the dental model including at least one abutment tooth and a prosthetic portion associated with a dental prosthesis model; A scaffold model is created, and the scaffold model is configured to be installed onto the abutment tooth; A dental base model is constructed, the dental base model comprising a first part and a second part, wherein the support model is sandwiched between the first part and the second part, and the first part of the dental base model is aligned with the restorative portion of the dental model; A dental prosthesis model is created, and the dental prosthesis model is aligned with the second part of the denture base model; The base is manufactured based on the first and second parts of the base model, and the support is manufactured based on the support model; and Connect the base and the bracket to obtain the dental object.

2. The method according to claim 1, wherein obtaining the dental model comprises: Dental models are obtained through oral cavity scanning.

3. The method according to claim 1, wherein, - The dental model includes a first abutment tooth and a second abutment tooth, and the restoration is located between the first abutment tooth and the second abutment tooth; and / or - The dental model includes a third abutment tooth, and the restoration is adjacent to the third abutment tooth.

4. The method according to claim 1, wherein, The support model includes at least one hole sandwiched between the first and second parts of the base model.

5. The method according to claim 4, wherein connecting the base and the bracket comprises: A target photosensitive resin material is applied to at least one hole of the support model, and the target photosensitive resin material is exposed to cure and connect the base and the support, wherein a first part and a second part of the base model are configured to be made of the target photosensitive resin material.

6. The method according to claim 1, wherein connecting the base and the bracket comprises: Use an adhesive to secure the base to the bracket.

7. The method according to claim 1, wherein, - The bracket model has a first mounting feature, and the first part of the base model has a first mating feature that is complementary to the first mounting feature; and / or - The bracket model has a second mounting feature, and the second part of the base model has a second mating feature that is complementary to the second mounting feature.

8. The method according to claim 7, wherein, - The first mounting feature is a hole, and the first mating feature is a protrusion; or - The first mounting feature is a protrusion, and the first mating feature is a hole; or - The second mounting feature is a hole, and the second mating feature is a protrusion; or - The second mounting feature is a protrusion, and the second mating feature is a hole.

9. The method according to claim 1, wherein manufacturing the base comprises: The base is manufactured using photosensitive resin through additive manufacturing.

10. The method of claim 1, wherein manufacturing the base based on the first and second portions of the base model comprises: The second part of the base and the dental prosthesis are integrally formed using base material and dental prosthesis material through additive manufacturing.

11. The method according to claim 1, further comprising: Based on the dental model, a dental mold is manufactured.

12. The method of claim 1, wherein the support extends along the arrangement direction of the dental prosthesis, and a second portion of the base covers the support in a direction perpendicular to the arrangement direction.

13. The method according to claim 9, wherein the step of manufacturing the base using photosensitive resin further comprises: Supports are provided at the edges of the base.

14. The method according to claim 1, wherein establishing the Kittow model comprises: The Boolean difference between the scaffold model and the initial base model is used to determine the first and second parts that make up the base model.

15. A system for manufacturing dental objects, characterized in that, include: The processor is configured as follows: - Obtain a dental model, which includes at least one abutment tooth and a prosthetic portion associated with a dental prosthesis model; - Create a scaffold model, which is configured to be installed onto the abutment tooth; - Establish a dental base model, the dental base model comprising a first part and a second part, wherein the support model is sandwiched between the first part and the second part, and the first part of the dental base model is aligned with the restorative portion of the dental model; - Create a dental prosthesis model, which is aligned with the second part of the denture base model; At least one manufacturing unit is configured to manufacture a base based on a first part and a second part of the base model, and to manufacture a support based on the support model; And connect the base and the bracket to obtain the dental object.

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