Dental Prosthesis Surface Manipulation Interface
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Solution Overview
Problem
Current dental prosthesis design systems provide limited options for manipulating the surface, making it difficult to add or subtract uniform layers, which is essential for modifying the thickness of dental prostheses without altering their contour.
Innovation Solution
A computer-based interface that allows operators to define areas for surface manipulation, adding or subtracting uniform layers up to a predefined limit, regardless of overlap, using input devices like mice or keyboards, enabling precise control over layer addition or removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If current dental prosthesis design systems are used, then the design process can be completed, but the surface manipulation capability is limited and cannot easily add or subtract uniform layers
Solution Approach 1:
The surface is divided into multiple selectable areas or zones that can be independently manipulated. The system allows operators to define specific regions on the prosthesis surface and apply different manipulation operations to each segment, enabling precise control over where uniform layers are added or subtracted without affecting the entire surface.
Solution Approach 2:
The system provides dynamic surface manipulation tools that allow real-time adjustment of layer thickness and distribution. Operators can interactively modify the prosthesis surface by adding or removing uniform layers through intuitive interface controls, with the system automatically updating the 3D model and maintaining geometric constraints throughout the process.
2Stability of the object's composition
If operators want to thicken a portion of a crown for stability, then the stability improves, but the contour may be significantly altered
Solution Approach 1:
The system enables localized thickness adjustment by allowing operators to select specific areas on the crown surface where material should be added or removed. The manipulation is confined to the selected region while preserving the original contour and geometry of the entire crown, thus improving stability without compromising overall shape.
Solution Approach 2:
The system provides controlled parameter adjustment for layer thickness, allowing operators to modify the thickness of added or removed material within predefined limits. This enables precise control over the amount of material added to specific regions, achieving the desired stability enhancement while maintaining the crown's original aesthetic contour through constrained parameter changes.
3Manufacturing precision
If operators manually manipulate surface points to add or subtract material, then control over the surface is achieved, but the process is time-consuming and complex
Solution Approach 1:
The system allows operators to pre-define the areas and parameters for surface manipulation before executing the actual material addition or removal. By specifying the target regions and desired thickness changes in advance, the system can automatically apply the transformations, reducing the time required for manual point-by-point adjustment while maintaining precise control over the final surface geometry.
Data Source
AI summary
Herein are provided methods, systems, computer-readable media, techniques and processes for surface manipulation in dental prosthesis design. These include providing an interface for modifying the surface of a model of a dental prosthesis. This interface may be provided to an operator, dentist, dental practitioner, or any other appropriate person via a computer and a computer display. The operator provides areas in which the operator would like to add a layer or other limited manipulation to the surface of the model. This may include an addition to the surface or a subtraction from the surface. As the operator is defining additional areas to manipulate on the surface (e.g., add or subtract a layer), invariably some of them will overlap. Unlike previous methods, this overlap will not cause the amount added to the surface to increase beyond the predefined limit for the layer. This allows operators to define cleanly added layers or cleanly subtracted layers from dental prostheses.