Dental Blank Fastening Layout for Parallel Axis Milling
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Solution Overview
Problem
Existing dental processing systems are limited in manufacturing customized, angled abutments and prostheses with form-fitting connections due to the need for perpendicular processing, which restricts the ability to mill threads and requires expensive industrial tools and labor-intensive processes.
Innovation Solution
A dental processing piece with a cylindrical base body and a fastening area arranged around the processing area, allowing for parallel processing and flexible repositioning, enabling the creation of threaded bores and various form-fit connections, and accommodating smaller machine tools for efficient and precise manufacturing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the dental piece is processed perpendicular to its longitudinal axis (conventional method), then the holder can be easily arranged, but it is not possible to mill threads or create form-fitting connections and the processing is restricted
Solution Approach 1:
The patent inverts the conventional processing approach by processing the dental piece parallel to its longitudinal axis instead of perpendicular. This inversion enables the milling of threads and form-fitting connections while maintaining a simple holder arrangement through the fastening area design
2Manufacturing precision
If expensive industrial machine tools are used, then high precision processing can be achieved, but the labor effort and cost increase significantly
Solution Approach 1:
The patent changes the processing parameters by orienting the workpiece parallel to the longitudinal axis and designing a specific fastening area geometry. This allows smaller, less expensive machine tools to achieve the same processing precision while improving manufacturing efficiency and reducing labor effort
3Ease of operation
If the holder clamps the piece with frictional engagement, then the piece can be held securely, but it cannot be repositioned multiple times for different processing steps
Solution Approach 1:
The patent segments the dental piece into a processing area and a separate fastening area. This segmentation allows the fastening area to provide secure, repeatable clamping while the processing area can be accessed for multiple processing steps, enabling repositioning without compromising holding security
4Manufacturing precision
If the fastening area is arranged at the end of the piece, then the holder can clamp securely, but the area below the holder is not freely accessible for processing
Solution Approach 1:
The patent transitions from arranging the fastening area at the end (one-dimensional positioning) to arranging it around a section of the processing area (circular/radial arrangement). This dimensional change provides full accessibility to the processing area while maintaining secure clamping through the radial fastening geometry
Data Source
AI summary
The invention relates to a dental piece being processed (1) or blank for producing a dental restoration, in particular an abutment, crown, bridge or snap-on connection, having a processing area (B), which may be processed by a dental processing device (2) and which has a cylindrical base body having a longitudinal axis (X), a top surface (5), a base surface (6) and a lateral surface (7), and a fastening area (F) for fastening the piece being processed (1) to a holder (3) of the processing device (2), wherein the fastening area (F) is arranged radially around the cylindrical base body of the processing area (B), wherein the piece being processed (1) may be mounted in the holder (3) with the aid of the fastening area (F) in such a way that it may be processed in parallel to the longitudinal axis (X) in the mounted state.