Virtual Secondary Machining of Gingiva Models
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Solution Overview
Problem
The construction of a full denture with an artificial gum is time-consuming due to the need for manual, step-by-step construction using existing methods, which lack efficient anatomical adaptation tools.
Innovation Solution
A method for virtual post-processing of a virtual three-dimensional gingival model using a virtual tool to modify defined surface structures such as interdental spaces, papillae, and transition areas, allowing for anatomically meaningful adjustments through computer-aided analysis and input devices like a mouse or keyboard.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manual step-by-step construction methods are used to create artificial gum models, then anatomical adaptation can be achieved, but the process becomes time-consuming and labor-intensive
Solution Approach 1:
The patent replaces manual mechanical modeling operations with automated computer-aided analysis and virtual tools. The system automatically analyzes the 3D gingival model and provides virtual instruments for modifying surface structures, eliminating the need for time-consuming manual wax application and physical model manipulation while maintaining anatomical precision.
Solution Approach 2:
The system enables self-service by automatically performing complex analytical tasks. The computer-aided analysis method autonomously processes the 3D gingival model data, identifies anatomical features, and provides modification options without requiring continuous manual intervention, thereby reducing construction time while preserving anatomical accuracy.
2Ease of operation
If conventional CAD tools are used to modify 3D models point by point, then detailed control is possible, but anatomical structures are not properly considered
Solution Approach 1:
The patent applies local quality by enabling selective modification of specific anatomical surface structures (such as interdental spaces, papillae, and gingival margins) while preserving the integrity of surrounding anatomical features. The virtual tools allow operators to target and modify individual anatomical regions with precision, ensuring that each modification maintains anatomical meaningfulness rather than treating the model as a uniform surface.
Solution Approach 2:
The system segments the gingival model into distinct anatomical surface structures that can be individually selected and modified. By dividing the continuous gingival surface into meaningful anatomical units (interdental spaces, papillae, margins), the system enables targeted modifications that respect anatomical boundaries and relationships, improving both ease of operation and anatomical precision.
3Adaptability or versatility
If full manual construction of gingival models is performed, then complete control over the model is achieved, but the process complexity increases significantly
Solution Approach 1:
The patent introduces a computer-aided analysis system as an intermediary between the raw 3D scan data and the final gingival model. This intermediary automatically processes the scan data, identifies anatomical features, and presents modification options to the operator, thereby reducing process complexity while maintaining complete control over the final model through the virtual tools.
Data Source
Figure 1
Figure 2~3
AI summary
The invention relates to a method for the virtual secondary machining of a virtual three-dimensional gingiva model (10) produced during the planning of an artificial gingiva. The virtual gingiva model (10) is subjected to a virtual secondary machining by modifying at least one defined three-dimensional surface structure (11, 12, 13, 14, 15, 6) of the gingiva model by means of a virtual tool using a computer (3).