Dental Prosthesis Holding Device for Precise Scanning
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Solution Overview
Problem
Current methods lack the capability for automated production of individual dental abutments and other prosthesis parts, which are typically standardized and not adaptable to specific implants, limiting precision and customization in dental treatments.
Innovation Solution
A holding device with distinct areas for modeling and identification, featuring flat surfaces and shape markings, allows for precise positioning and scanning, enabling the creation of digital models that account for the inner shape of dental prostheses, facilitating automated production using CAM processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If standard abutments are used, then production is simplified and cost is reduced, but adaptability to specific implants and customization capability are limited
Solution Approach 1:
The patent creates a digital model of the implant site and abutment in advance using scanning and modeling techniques. This preliminary digital representation allows for customization planning before actual production, enabling both standardization benefits and custom adaptability by pre-defining the precise geometric parameters needed for the specific implant site.
2Manufacturing precision
If individualized abutments are produced, then adaptability and precision are improved, but production complexity and time increase
Solution Approach 1:
The patent replaces traditional mechanical modeling and fitting processes with optical scanning and digital modeling systems. The scanning device captures precise geometric data, and software automatically generates digital models and production files, eliminating complex manual measurements and iterations while achieving high individualization precision.
Solution Approach 2:
The system uses digital parameters to define abutment geometry precisely. By changing digital model parameters rather than physical tooling, the system can quickly adapt to different implant sites and requirements, reducing production complexity while maintaining high precision for individualized abutments.
3Loss of information
If the entire holding device is scanned, then complete geometric data is obtained, but identification of the holding device position becomes difficult
Solution Approach 1:
The patent introduces a connecting part as an intermediary element between the model area and the holding device. This connecting part serves as a reference feature that appears in both the scan data and the holding device structure, enabling precise position identification without compromising the completeness of geometric data from the full scan.
4Area of stationary object
If the model covers the entire holding device, then complete coverage is achieved, but optical accessibility for position detection is lost
Solution Approach 1:
The patent divides the holding device into functionally distinct areas: a model area for supporting the abutment model and a second area with flat surfaces for position identification. This segmentation allows the model to cover the model area completely while leaving the second area optically accessible for scanning and position detection, resolving the conflict between coverage and detectability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables the precise modeling and production of customized dental abutments and prostheses, allowing for individualized dental treatments by defining the inner shape through optical or mechanical scanning, and enabling production using methods like milling or 3D lithography.
Implementation Method 1
the position of the holding device can be detected... the second area remains optically accessible... easily recognized, for example, with an optical or mechanical scanner
Data Source
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AI summary
The invention relates to a device for holding a model of a dental prosthesis, such as an abutment, comprising a first area in which the model of the prosthesis can be modeled and a second area that allows for unambiguous positional identification of the holder. The description also discloses a device for scanning objects, such as jaw models and/or dental models and/or sawtooth model sections, with a holder into which the above device can be held with a unique orientation and scanned.Furthermore, the description discloses a method for creating a digital model of a dental prosthesis, such as an abutment, comprising the steps of evaluating the scan data to capture at least part of the shape of the prosthesis model and evaluating the scan data to capture at least the position of the holder, a data carrier with instructions for carrying out such a method, and a method for manufacturing a dental prosthesis.