3D Digital Tooth Model Restoration for Missing Scan Sections
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Solution Overview
Problem
Existing 3D digital tooth models often contain defects such as missing tooth sections, which can be caused by incomplete or erroneous scans, posing challenges in accurately representing the patient's tooth structure for dental restoration.
Innovation Solution
A method to supplement the 3D digital defective tooth model by overlaying and merging it with a 3D digital artificial tooth model to fill in the missing sections, ensuring precise fitting and restoration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If 3D digital tooth models are generated using scan data, then digital representation of tooth structure is achieved, but defects such as missing tooth sections occur due to incomplete or erroneous scans
Solution Approach 1:
The patent creates a complete 3D digital tooth model by copying geometric information from a reference tooth model to fill missing sections in the scanned tooth model. This copying process transfers accurate geometric data from the reference model to restore incomplete areas, ensuring the final model is both complete and accurate without requiring perfect scan data
Solution Approach 2:
The patent performs preliminary identification of missing tooth sections before final model completion. By detecting and marking incomplete areas in advance, the system can systematically retrieve corresponding sections from the reference model and integrate them, ensuring no information is lost and the model is fully restored
2Manufacturing precision
If missing tooth sections are filled using reference models, then complete tooth surface is restored, but complexity of the restoration process increases
Solution Approach 1:
The patent implements automated algorithms that perform the entire restoration process without manual intervention. The system automatically identifies missing sections, retrieves corresponding data from reference models, merges the geometry, and generates the complete restored model, eliminating the need for complex manual restoration procedures while maintaining high precision
Solution Approach 2:
The patent transforms the complex restoration task into a systematic parameter-based process by defining specific geometric parameters and transformation rules. By changing the approach from manual modeling to automated parameter-driven reconstruction, the system achieves high accuracy while simplifying the overall process complexity
Data Source
AI summary
The invention relates to a computer-implemented method for restoring a 3D digital defective tooth model of a tooth of a patient. The 3D digital defective tooth model is missing one or more tooth sections. The method comprises receiving a 3D digital teeth model of at least a part of a dentition of a patient comprising the 3D digital defective tooth model. A 3D digital supplemented tooth model of the tooth of the patient is generated. The generating of the 3D digital supplemented tooth model comprises supplementing the 3D digital defective tooth model with one or more filling tooth sections used to fill one or more of the missing tooth sections.