IRREGULAR CELLULAR STRUCTURE IMPLANT-SUPPORTED DENTAL PROSTHESIS SUB-STRUCTURE
Patent Information
- Application Number
- TR202612585
- Authority / Receiving Office
- TR · TR
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2026-07-27
- Publication Date
- 2026-08-21
Smart Images
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Abstract
Description
1 TARIFF IRREGULAR CELLULAR STRUCTURE IMPLANT-SUPPORTED DENTAL PROSTHESIS SUB-STRUCTURE TECHNICAL AREA 5 The invention relates to dentistry, dental implant technologies, and dental prosthetic infrastructures. It is related to the technical aspects of design and production. More specifically; implant-supported dental Cobalt-chromium (Co-Cr) based dental prosthetic substructures used in prostheses It relates to the structural arrangement of a prosthesis with an irregular cellular structure. It is aimed at creating their infrastructure. 10 The invention involves the creation of an irregular structure within the implant-supported dental prosthesis infrastructure. This relates to the structural characteristics of the cellular structure and the prosthetic infrastructure in question. structuring it in a way that can be produced using additive manufacturing technologies It includes. The structural arrangement created within the scope of the invention; implant-mounted The distribution of irregular cellular structures within the internal volume of the dental prosthesis infrastructure, 15 It is related to density and geometric organization. STATE OF THE ART In implant-supported dental prosthesis applications, prostheses are placed on the implants. Substructures that provide mechanical strength to fixed prostheses are made of different biomaterials. 20 It is produced using Cobalt-Chrome (Co-Cr). In clinical applications, it is commonly used. alloys, titanium alloys, zirconia-based substructures, and polymer-based hybrids Infrastructures such as casting, machining, or additive manufacturing are preferred. It can be produced using manufacturing methods. In implant-supported full-mouth dental prosthesis applications, especially in occluso-gingival 25 In cases where the height increases, Co-Cr based infrastructures are economical. Although commonly preferred, the weight of the prosthesis increases due to the increased volume. There is an increase in this. In contrast, titanium-based infrastructures are lower. High production capacity, while providing a weight advantage due to their density. Due to their costs, they are not preferred in every clinical application. Polymer-based 30 While hybrid infrastructures offer a more economical alternative, their mechanical strength and longevity are also questionable. The period has various limitations in terms of usage and aesthetic features. Monolithic zirconia restorations, however, are expensive and carry a risk of fracture. 2 It is not a suitable option for every patient group. For these reasons, implants economical, with sufficient mechanical properties and weight, for dental prosthesis infrastructures above the standard. Work is ongoing to develop reduced-volume structures. Digital design techniques, finite element analysis, and additive manufacturing. With advancements in technology, computer-aided dental prosthesis infrastructures are now available. It has become possible to model it and manufacture it using additive manufacturing methods. These developments have resulted in the geometry of prostheses not only changing the external surface but also the internal surface. This has also made it possible to design its structure. However, the existing In a significant number of applications, the internal structure is a fully filled, regular lattice. It is formed in the form of cellular geometry with a structured or homogeneous distribution. 10 In these structures, the distribution of cellular geometry within the prosthesis is generally uniform. and local stress distribution depending on the region of the structure. No change in density is created. In patent and literature searches related to the technical field in which the invention is based, UD SMARTHYBRIDE 15, which was also stated by the inventors as the closest technical designation. In the solution, the implant-supported prosthesis infrastructure has a wire mesh character and is regular. It appears that the weight is reduced homogeneously using cellular structure. In contrast... In this approach, it depends on the stress distribution occurring within the prosthesis. as a result of the formation of irregular cellular structures with varying densities in different regions. There is no structural arrangement in place for this purpose. 20 Also included in the patent search is WO 2009 / 102850 A1. The document discusses the creation of three-dimensional digital dental models and digital dental prostheses. It describes the processes involved in designing it. However, the aforementioned The document describes the stress in the internal volume of the implant-supported Co-Cr dental prosthesis substructure. irregular cellular structure with varying density depending on distribution 25 There is no structural arrangement in place for its creation. Similarly, patent document US 8,457,772 B2 describes patient-specific treatment. Methods related to computer-aided design of dental components It explains that the internal structure of the prosthetic infrastructure differs from the prosthetic body. 30 variable regions containing irregular cellular structures with varying densities a structure description for creating irregular cellular geometry in high density It does not. 3 Published by the inventors in the Journal of Prosthetic Dentistry Topology design and structural optimization of Co-Cr frameworks for implant- In the scientific study titled "supported prostheses," implant-supported Co-Cr prostheses were discussed. Although topological design approaches have been examined in their infrastructures, the aforementioned The request for protection is independent of the scientific explanations of the study in question, 5 implant-supported dental with structural features defined in the specifications and requirements It is geared towards prosthetic infrastructure. THE TECHNICAL PROBLEM WE AIM TO SOLVE In implant-supported dental prosthesis applications, especially in occluso-gingival areas 10 Co-Cr based dental prosthesis used in full mouth restorations where height is increased. In their infrastructures, the total structural weight also increases due to the increase in prosthesis volume. It is increasing. Due to the increased weight, lower intensity is required in clinical applications. Titanium-based infrastructures can be preferred, but the high quality of these materials... Production costs limit its economic use. A lower cost option is available. Alternatively, polymer-based hybrid infrastructures are used, which offer mechanical strength and longevity. limitations in terms of periodic performance and aesthetic features Monolithic zirconia substructures, however, have cost and brittleness characteristics. Therefore, it does not constitute a viable solution in every clinical situation. On the other hand, metal produced by traditional casting and machining methods 20 In essential dental prosthesis infrastructures, formations occur in different regions of the internal structure of the prosthesis. It is possible to create variable cellular geometries according to mechanical load distribution. However, this is not the case in applications where additive manufacturing technologies can be used. Existing solutions are mostly based on regularly or homogeneously distributed cellular structures. It is created by taking 25% of the stress distribution that occurs within the prosthesis. Depending on the context, there is an irregular cellular structure with varying densities in different regions. There is no structural arrangement in place for its creation. Therefore, the structural basis of implant-supported Co-Cr-based dental prosthesis is crucial. in a way that preserves its integrity, the cellular structure located within the internal volume of the prosthesis 30 by taking into account the mechanical load and stress distribution in different regions A new structural arrangement is needed that will allow for its regulation. 4 A BRIEF DESCRIPTION OF THE INVENTION The invention is intended for use in implant-supported dental prosthesis applications. It relates to a structured Cobalt-Chrome (Co-Cr) based dental prosthesis infrastructure. The dental prosthesis framework described in this invention is designed to be attached to implants. It includes a constructed prosthetic body. The prosthetic body must have at least one 5 In this section, an irregular cellular structure is formed within the internal volume. This irregular cellular structure forms in different regions of the prosthesis body. The regional density will vary taking into account the mechanical load and stress distribution. It is arranged in this way. The irregular cellular structure is the same in different regions of the prosthesis body. not formed at a single density, but at varying density throughout the prosthetic body. It contains distributed cellular geometry. The cellular structure is located within the prosthesis body. It consists of continuously repeating cells, and the cell geometry is Schwarz. Gyroid, Diamond, Neovius, or their technical equivalents, disordered cellular It can include at least one of the following structures. 15 Within the scope of the invention, a prosthetic body in which an irregular cellular structure is created, It is structured in a way that allows it to be produced using additive manufacturing methods. Dental prosthesis its infrastructure can be produced in a single piece using Co-Cr based material. It has a structural arrangement. The invention defines the external geometry of the prosthetic body. without altering it, through the irregular cellular structure created within its internal volume 20 This text discusses the structured implant-supported dental prosthesis infrastructure. LIST OF FIGURES Figure 1. Perspective view of the three-dimensional digital model of the implant-supported dental prosthesis infrastructure. appearance. 25 Figure 1a. Front view of a three-dimensional digital model of an implant-supported dental prosthesis substructure. appearance. Figure 2. Loading and limiting applied to implant-supported dental prosthesis substructure. A perspective schematic representation of the conditions. Figure 2a. Loading and limit applied to implant-supported dental prosthesis substructure 30 A schematic representation of the requirements in advance. Figure 3. Finite element analysis of implant-supported dental prosthesis infrastructure. Schematic representation of the results. Figure 3a. Finite element analysis of implant-supported dental prosthesis infrastructure. Schematic representation of the results. Figure 3b. Finite element analysis of implant-supported dental prosthesis infrastructure. 5 Schematic representation of the results. Figure 4. Examples of cellular geometry types and their use in implant-supported dental prostheses. An example cross-sectional view of its application to the infrastructure. Figure 4a. Examples of cellular geometry types and their use in implant-supported dental prostheses. Example horizontal cross-section view of its application to the infrastructure. 10 Figure 4b. Examples of cellular geometry types and their use in implant-supported dental prostheses. An example cross-sectional view of its application to the infrastructure. Figure 4c. Examples of cellular geometry types and their use in implant-supported dental prostheses. An example vertical cross-sectional view of its application to the infrastructure. Figure 4d. Examples of cellular geometry types and their use in implant-supported dental prostheses. 15 An example vertical cross-sectional view of its application to the infrastructure. Figure 4e. Examples of cellular geometry types and their use in implant-supported dental prostheses. An example vertical cross-sectional view of its application to the infrastructure. Figure 5. Weight reduction ratio and equivalent of different cellular structure configurations. (von Mises) Tabular representation of the comparison of stress values. 20 Figure 6. Maximum displacement and parameters for different cellular structure configurations. A diagram illustrating the comparison of reaction force values. DESCRIPTION OF THE FIGURES Figures 1 and 1a show the three-dimensional 25-degree view of the implant-supported dental prosthesis infrastructure that is the subject of the invention. The digital model is shown. In the figure, the prosthetic infrastructure including the implant sockets is depicted. The general geometric structure of the prosthetic body is given as an example. The aforementioned The model is a basic prosthesis in which an irregular cellular structure will be applied within the scope of the invention. It represents the infrastructure. 6 Figure 2 shows the mechanical engineering performed on the implant-supported dental prosthesis infrastructure. The loading and boundary conditions used in the analyses are shown schematically. The figure shows the areas where occlusal loads are applied and the implant attachment areas. The defined support conditions are given as examples. Figure 3 shows the results obtained from finite element analyses of the implant-supported dental prosthesis infrastructure. The sample analysis results are shown in the figure. In order: A) maximum displacement distribution, B) Equivalent (von Mises) stress distribution, C) The reaction force distribution is shown as an example. Figure 4 shows the 10 that can be used in the internal volume of implant-supported dental prosthesis infrastructure. Example geometries of irregular cellular structures are shown in the figure. In the figure, Schwarz, Example unit cell geometries of Gyroid and Diamond cell types, and these cellular structures... Example cross-section showing the application of structures to implant-supported dental prosthesis infrastructure. Their appearances are included. Figure 5 shows the weight reduction ratio for different cellular structure configurations with 15. A tabular comparison of equivalent (von Mises) stress values. It has been shown. Figure 6 shows the maximum displacements and values for different cellular structure configurations. A comparison of reaction force values is shown. DETAILED DESCRIPTION OF THE INVENTION The invention is intended for use in implant-supported dental prosthesis applications. It relates to a structured Cobalt-Chrome (Co-Cr) based dental prosthesis infrastructure. More specifically, the invention lies in the internal volume of the implant-supported dental prosthesis infrastructure. A structured physical prosthesis created thanks to the irregular cellular structure 25 It deals with its infrastructure. The dental prosthesis infrastructure described in the invention can be fixed onto implants. It has a body structure formed in this way. The body structure is designed for implant connection. It includes the prosthetic support sections and the portion extending between them. (Figure 1) A sample view of the implant-supported dental prosthesis infrastructure that is the subject of the invention. 30 It is shown. 7 In this invention, the external geometry of the prosthetic infrastructure is preserved while the internal volume of the body is reduced. At least one section involves an irregular cellular structure. Irregular cellular The structure is a uniform cellular structure formed with the same characteristics throughout the body. not, but cellular structures with varying densities arranged in different regions of the prosthesis. It includes geometry. 5 The irregular cellular structure consists of three continuously repeating patterns within the prosthetic body. It consists of three-dimensional cells. Cell geometry depends on the application. such as Schwarz, Gyroid, Diamond, Neovius, or those with the same technical principle. It can be formed using at least one of the other irregular cellular structures. Figure 4 shows example geometries of different cellular structure types and implants of these cells. Sample cross-sectional views created within the dental prosthesis infrastructure. It is shown. Within the scope of the invention, the cellular structure is only available in the space within the prosthesis body. It is not placed for the purpose of creating a cellular structure. The cellular structure is different from the prosthetic body. Considering the mechanical load and stress distribution occurring in these regions, 15 The regional density is adjusted to vary. Thus, the prosthesis cell density, cell distribution, cell in different regions of the body Their organization and cellular volume ratio can differ from one another. In the structure that is the subject of the invention, the cellular geometry is the same throughout the prosthetic body. Unlike the regular lattice structure that continues in density, the prosthesis has different 20 They are formed with different densities in these regions. Thus, the cellular structure of the prosthesis It is not homogeneous throughout, exhibiting variable structural characteristics along the stem. It shows a distribution. When constructing the cellular structure, factors such as cell size, cell density, and lattice thickness are considered. Cellular organization and cell type can be altered individually or in combination. 25 Each of these parameters differs in different regions of the prosthesis body. It can be determined in such a way. In an application example, the cellular structure is a continuously repeating three-dimensional unit. It consists of cells. Unit cell size and lattice thickness are applied. It can be selected according to the requirement. Example 30 described in the invention disclosure form. In practice, the lattice thickness is selected between 0.4 mm and 3 mm, and the unit cell 8 It has been stated that the dimensions are 5 mm × 5 mm × 5 mm. However, These measurements relate only to the example application and the invention is not limited to them. The prosthetic infrastructure subject to the invention is made of a single piece of Co-Cr based material. It is structured in a way that allows for production. In one application example, production is done using Selective Laser. Selective Laser Melting (SLM) or Direct Metal Laser Sintering 5 This is achieved using the Direct Metal Laser Sintering (DMLS) method. However, the invention allows for other methods that enable the creation of an irregular cellular structure. It is also capable of being produced using suitable additive manufacturing methods. Figure 2 shows an example performed on an implant-supported dental prosthesis infrastructure. The loading and boundary conditions used in mechanical analyses are shown in Figure 10. The loading conditions shown are an example application for the disclosure of the invention. This should not be interpreted in a way that would limit the scope of the invention. Biomechanical loading on a prosthetic infrastructure in an application example. conditions are defined and different cellular structure configurations are created. It has been analyzed comparatively. 15 Figure 5 shows examples of prostheses with different cellular structure configurations. equivalent (von Mises) stress values with weight reduction ratios of their infrastructures The results in the table are presented together. The results in the table show that different cellular structure arrangements Sample analysis results regarding the comparison in terms of mechanical behavior. This shows that the data in the table indicates a different 20 irregular cellular structure. Example application data showing that it can be implemented in various configurations. It is of that nature. Figure 3 shows the maximum values obtained from sample finite element analyses. displacement, equivalent (von Mises) stress and reaction force distributions as shown. The analysis results in the figure show different cellular structures 25 Examples of mechanical behavior of prosthetic infrastructures with appropriate regulations It shows. Figure 6 shows the maximum values for different cellular structure configurations. Displacement and reaction force values are given comparatively. The results presented in the table illustrate the mechanical analysis of different cellular structural arrangements. 30 This shows a sample comparison of the outputs. This data indicates that the invention... 9 These are sample analysis results regarding its implementation and limit the scope of protection. It is not of that quality. In one application example, a three-dimensional digital model of the patient was used as the basis. An implant-supported dental prosthesis infrastructure has been created. The prosthesis body that has been created... An irregular cellular structure has been formed within its internal volume, and the cellular structure parameters are 5. Considering the mechanical load and stress distribution in different regions of the prosthesis body It was regionally organized based on the data obtained. The resulting digital model is used in additive manufacturing. transferred to the system and formed as a single piece using Co-Cr based metal powder. The mechanical analysis results of the produced sample prosthetic infrastructure are shown in Figure 3. This is shown as an example in Table 1 and Table 2. 10 The results given in Table 1 and Table 2 represent the different designs created within the scope of the invention. It shows example application results for cellular structure configurations. The numerical values in the tables are based on a specific design, specific analysis conditions, and specific criteria. These are sample results obtained under loading conditions and define the scope of the invention. It should not be interpreted in a way that would limit the different 15 irregular cellular structures. geometries, different cell densities, different cell distributions, and different production methods. Different mechanical analysis results can be obtained when applied using these parameters. It is possible. The irregular cellular structure that is the subject of the invention has three internal volumes within the prosthetic body. It is designed to create a three-dimensional cellular geometry. Cellular 20 The structure can be created throughout the entire prosthetic body or only in specific areas. It can also be formed in these regions. The regions where the cellular structure is formed are: The supporting portion extending between the implant attachment sites, posterior region, anterior region. It may include at least one of the regions or areas where these are found together. The cellular structure consists of 25 cells of a single cell type within the prosthesis body. It can be created by using two or more different cell types together. This can also be achieved by creating different cells in different regions within the same prosthesis body. Their geometries can be used together. In one application example, the prosthetic substructure is made of Co-Cr-based alloy. is produced. In alternative applications, Co-Cr alloy is used in different commercial or technical 30 applications. Equivalent alloys can be used. The prosthetic body can be made as a single piece. Although it is preferred to produce parts using this method, parts are created using different production techniques. Applications created by combining these methods are also included within the scope of the invention. can be evaluated. In one application example, production is carried out using a metal-based additive manufacturing method. This is accomplished using [method / technique]. As an additive manufacturing method; SLM, DMLS or metal powder are layered in 5 layers. Other suitable production methods that enable shaping can be used. The production method is an example of how to create the physical structure of the invention. It is an application and does not limit the scope of protection. Figure 4 shows examples of cellular geometry types. The figures given... The Schwarz, Gyroid, and Diamond cell types are examples only. Invention 10 other three-dimensional cell types that can form irregular cellular geometry within this scope It can also be used. Only one type of cell can be used within the same prosthesis body. such as, a hybrid cellular structure formed by two or more cell types It can be created. The cell type, cell size, and cell density described in this specification are 15. cellular space ratio, lattice thickness, manufacturing method, loading conditions, analysis parameters and application examples examples relating to the application of the invention These are regulations, provided that the technical specifications defined in the requests are maintained. Any modifications that can be made to these are also considered within the scope of the invention. In one application example of the invention, an implant-supported full-mouth dental prosthesis 20 Implant-supported dental implants are designed based on the upper jaw anatomy of a patient who will undergo the procedure. A three-dimensional digital model of the prosthetic infrastructure has been created. The three-dimensional model... the implant attachment areas and the external geometry of the prosthesis body during its creation The design has been defined and the outer surface of the prosthetic body has been preserved. The internal volume of the created prosthetic body has an irregular cellular structure. 25 It is designed to be suitable for creation. In this context, prosthetics Although the same cellular geometry is used in different regions of the body, the cellular The regional density of the structure has been altered; in alternative applications, different cell types are used. Hybrid cellular structures were created by using these types together. In an application example, the cellular structure could be Schwarz, Gyroid, Diamond, or 30. It was created using at least one of the Neovius cell types. Alternative 11 in applications where multiple cell types can be used together within the same prosthesis body. Hybrid cellular arrangements can also be created using these methods. Cell density and cell size are important factors in the formation of the cellular structure. Latissimus thickness and cellular organization parameters vary depending on the prosthetic body. The regions are defined differently from each other. Thus, the prosthetic body is 5 A non-homogeneous, irregular cellular geometry was obtained throughout. In an application example, the lattice thickness is calculated using values of 0.4 mm, 2 mm, and 3 mm. The selected unit cell size is 5 mm × 5 mm × 5 mm. With this... However, the dimensions in question relate only to the example application, and the invention does not include them. not limited. 10 The prepared digital model was transferred to a metal-based additive manufacturing system. In one application example, production is done using Selective Laser Melting (SLM). This was achieved using the Direct Metal Laser method. Alternative applications include Direct Metal Laser. Sintering (Direct Metal Laser Sintering - DMLS) method or other metal-based methods Additive manufacturing methods can also be used. 15 On the implant-supported dental prosthesis infrastructure obtained after production. Sample mechanical analyses have been performed. The loading conditions are shown in Figure 2. In the analyses based on different cellular structure configurations Their mechanical behaviors were compared. Table 1 shows the weight reduction ratios for different cellular structure configurations. The ratios and equivalent (von Mises) stress values are given comparatively. The results presented in Table 1 illustrate the mechanical effects of different cellular structural arrangements. an example that shows it produces different results in terms of behavior These are the results of the application. Table 2 shows the maximum of 25 different cellular structure configurations. Displacement and reaction force values are given comparatively. The results in the table are mechanical analyses performed under sample analysis conditions. It shows application data related to the evaluations. Figure 3 shows the maximum displacement obtained from sample analyses, equivalent to... (von Mises) stress and reaction force distributions are shown. These analyses, 30 Examples of different cellular structure arrangements created within the scope of the invention. 12 It shows the application results and is of a nature that limits the scope of the invention. It is not. The invention creates a framework for implant-supported dental prosthesis infrastructure within its internal volume. It relates to the physical arrangement of the irregular cellular structure. As described in the specification. cell type, cell geometry, cell size, cell density, cellular space ratio, 5 lattice thickness, production method, analysis method, loading conditions and application. These are examples of model arrangements for the realization of the invention, These can be done provided that the technical specifications defined in the requests are preserved. Modifications and technical equivalents are also considered within the scope of the invention. Within the scope of the invention, an irregular cellular structure is applied throughout the prosthetic body. It can be created in any way, or only in specific regions. In practice, different cellular densities were observed in the anterior and posterior regions. While usable in one application, in another application implant attachment sites and intermediate carriers Different cellular arrangements can be formed in these regions. The cellular structure... The number, location, and geometric distribution of the regions in which it is created depend on the application. 15 It can be changed accordingly. The cell types described in this invention are illustrative. Irregular three other Cellular structures are also considered within the scope of the invention. Similarly, Co-Cr alloys, metal-based additive manufacturing methods and their technical aspects 20 The invention is also considered valid if its equivalents meet the technical specifications defined in the claims. It is evaluated within this scope. 30
Claims
14 REQUESTS 1. Designed for use in implant-supported dental prosthesis applications. It is a cobalt-chromium (Co-Cr) based implant-supported dental prosthesis infrastructure, the characteristic of which is; a prosthetic body designed to be attached to implants 5 including at least a portion of the internal volume of the prosthetic body in question. It contains an irregular cellular structure that forms and that cellular structure with different cellular densities in different regions of the prosthetic body It is characteristic.
2. According to Claim 1, it is an implant-supported dental prosthesis infrastructure, characterized by its irregular shape. 10 by the cellular structure containing a continuously repeating three-dimensional cellular geometry It is characteristic.
3. According to Claim 2, it is an implant-supported dental prosthesis infrastructure, characterized by its irregular shape. cellular structure from Schwarz, Gyroid, Diamond or Neovius cell types It is characterized by containing at least one of them. 15 4. According to any of the requirements, it has an implant-supported dental prosthesis infrastructure, Its characteristic feature is that the irregular cellular structure differs in different regions of the prosthesis body. cell size, containing different cellular densities and / or different lattice thicknesses It is characteristic. 25