Dental Prosthesis Color Application via 3D Scanning and Digital Control
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Solution Overview
Problem
Current methods for applying color to dental prostheses lack precision and accuracy, making it difficult to achieve individualized tooth color matching for dental restorations.
Innovation Solution
A method and device utilizing a 3D scanner to generate scan data, a processing unit to calculate and display colored images of the dental prosthesis, and a color application device with individually controllable nozzles to apply tooth color accurately, allowing for real-time adjustments and precise color placement on the prosthesis or carrier foil.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manual coloring methods (brush or modeling instrument) are used, then the process is simple and easy to operate, but the precision and accuracy of individual tooth color matching cannot be achieved
Solution Approach 1:
The coloring system is segmented into multiple independent components: 3D scanner for geometry acquisition, processing unit for data analysis, display device for visualization, and color application device with controllable nozzles for precise color deposition. Each component performs a specific function, allowing the system to achieve high precision while maintaining operational simplicity through modular design.
Solution Approach 2:
The system creates a digital copy of the dental prosthesis through 3D scanning, allowing virtual visualization and planning of the coloring process before actual application. This digital model serves as a precise template that guides the color application device, ensuring accurate tooth color matching without requiring complex manual dexterity.
2Manufacturing precision
If standardized tooth shade guide or electronic color capturing is used, then the tooth color can be determined, but accurate application of the desired tooth color is not possible with known methods
Solution Approach 1:
The system incorporates feedback through the display device that shows the planned color application on the digital model, allowing verification before actual coloring. The color application device then executes the coloring based on this feedback, ensuring accurate reproduction of the desired tooth color while simplifying the operator's task through automated guidance.
Solution Approach 2:
The system replaces manual mechanical coloring methods with an automated color application device that uses digital data to control color deposition. This substitution eliminates the imprecision of manual brushing while maintaining ease of operation through computerized control and automated positioning.
3Adaptability or versatility
If manual coloring is used, then the process is straightforward, but individualized tooth color matching cannot be achieved
Solution Approach 1:
The system performs preliminary actions by acquiring the 3D geometry and determining the desired tooth color before actual application. The processing unit analyzes this data and plans the color application strategy, allowing individualized customization to be precisely executed without requiring complex real-time adjustments during the coloring process.
Data Source
AI summary
The invention relates to a method for applying color in the field of dental technology, including generating scan data by means of detecting the dental prosthesis using a scanner; computing an image of the dental prosthesis from the scan data; displaying the image, wherein the image is displayed as colored with a tooth color; receiving a user input; in response to the user input: a) applying the tooth color onto the dental prosthesis or onto a carrier foil for the dental prosthesis, or b) displaying the image, wherein the image is displayed as colored with a different tooth color, and receiving a further user input, wherein in response to the further user input, an application of the altered tooth color by means of a color application device onto the dental prosthesis, or onto the carrier foil for the dental prosthesis takes place.