Dental Prosthesis Mother Matrix Mold via Digital Jaw Model
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Solution Overview
Problem
The traditional production process of dental prostheses, crowns, and bridges is complex, time-consuming, and results in anisotropic structures with aesthetic and surface quality issues due to layering methods, which complicates achieving stability and pleasing aesthetics.
Innovation Solution
A mother matrix mould is produced using a digitalized virtual model of the jaw, enabling rapid manufacturing or prototyping to create a functional model that is then invested and filled with denture material, allowing for the use of established materials and eliminating the need for layer-by-layer construction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If layering methods are used to build up dental prostheses, then the production process can be automated and time reduced, but the resulting structure becomes anisotropic with poor surface quality and aesthetic properties
Solution Approach 1:
The patent uses a digital copy of the patient's jaw and teeth (digital model) as the basis for producing the prosthesis. This digital copy is processed through CAD/CAM systems to generate precise tooling and molds, eliminating the need for physical layer-by-layer construction while maintaining high manufacturing precision and surface quality.
Solution Approach 2:
The patent replaces mechanical layering processes with digital modeling and computer-controlled manufacturing systems. The digital model is used to generate precise molds and tooling that can be manufactured using conventional manufacturing techniques, substituting the mechanical layering process with a digital-to-physical manufacturing approach that achieves superior surface quality.
2Ease of manufacture
If traditional layer-by-layer construction methods are used, then material selection is limited and post-processing is required, but using established materials directly eliminates post-processing and improves efficiency
Solution Approach 1:
The patent performs preliminary digital modeling and planning using the digital jaw model to determine the optimal prosthesis design and material selection before manufacturing. This preliminary action allows for the selection of established materials that can be directly processed without requiring subsequent layer-by-layer construction or extensive post-processing, as the design is optimized in advance.
Solution Approach 2:
The patent utilizes changes in material parameters and properties by selecting established dental materials with specific physical and chemical characteristics that allow for direct manufacturing. The digital model enables precise control over material parameters during the manufacturing process, allowing the use of conventional materials to be processed efficiently without post-processing.
3Productivity
If rapid prototyping methods are used to produce functional models, then production speed increases, but the resulting structures have anisotropic properties requiring additional treatment
Solution Approach 1:
The patent creates a digital copy of the jaw and teeth that serves as the basis for producing the prosthesis. This digital model is used to generate precise tooling and molds that can be manufactured using conventional manufacturing techniques, producing structurally stable components without the anisotropic properties associated with rapid prototyping layering methods.
Solution Approach 2:
The patent divides the prosthesis production into distinct segments: digital modeling, tooling production, and final manufacturing. This segmentation allows each stage to be optimized independently, using rapid digital modeling for design and conventional manufacturing for production, thereby achieving both speed and structural stability.
Data Source
AI summary
For producing a mother matrix mouldof a full or partial dental prosthesis orof a temporary crown or bridgeor of a permanent crown or bridge,the data of a digitalised virtual model reflecting the status of the jaw is used to generate a data setof the digital tooth set-up of the full or partial dental prosthesis orof the temporary crown or bridge orof the permanent crown or bridge,based on which a rapid manufacturing or rapid prototyping method is used to produce a functional model of the full or partial dental prosthesis or of the temporary crown or bridge or of the permanent crown or bridge that is then invested in a curable elastic impression material from which the mother matrix mould is produced after curing the elastic impression material.