Modular Dental Prosthesis Apparatus with Articulated Rods
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Solution Overview
Problem
The installation of multiple dental prostheses is hindered by the challenge of connecting stumps with varying inclinations, requiring artisanal modeling of titanium bars, which increases installation time and generates stress due to unbalanced extensions.
Innovation Solution
A modular apparatus comprising a chain of articulated rods with adjustable length and inclination, using spherical joints and radial forks to connect stumps, allowing for precise alignment and stabilization through welding points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If artisanal modeling of titanium bars is used to connect stumps with varying inclinations, then the connection can be customized to fit each specific case, but the installation time increases significantly
Solution Approach 1:
The titanium bar is divided into multiple modular segments that can be independently adjusted and connected. Each segment can be customized to accommodate different stump inclinations through simple assembly rather than complex artisanal modeling, thereby reducing installation time while maintaining adaptability.
Solution Approach 2:
The connection system incorporates adjustable elements that allow dynamic adaptation to varying stump inclinations. The modular segments can be positioned and oriented to match the specific angular requirements of each stump, eliminating the need for time-consuming custom modeling while preserving versatility.
2Stability of the object's composition
If the titanium bar is welded laterally to each stump to ensure centered positioning, then the connection is stable, but stress and unbalanced extension are generated between the elements
Solution Approach 1:
The single rigid titanium bar is segmented into multiple flexible sections that can independently accommodate the position and inclination of each stump. This segmentation distributes mechanical stress across multiple connection points rather than concentrating it at lateral weld points, reducing unbalanced extension while maintaining overall connection stability.
Solution Approach 2:
The connection system allows for adjustment of geometric parameters (position, angle, length) of each segment to optimize the distribution of forces. By changing these parameters, the system achieves balanced extension across all stumps, eliminating stress concentrations while preserving stability through proper mechanical alignment.
3Manufacturing precision
If the operator models the bar in a dedicated way for each prosthesis to account for misalignment conditions, then precise fitting is achieved, but the installation process becomes non-repetitive and time-consuming
Solution Approach 1:
The bar is segmented into standardized modular units that can be assembled in different configurations to accommodate various misalignment conditions. This eliminates the need for dedicated modeling of each entire bar while maintaining precise fitting through modular adjustment, thereby restoring repetitiveness and efficiency to the installation process.
Solution Approach 2:
The modular segments are designed with universal connection interfaces and adjustable geometry that can accommodate multiple misalignment scenarios. A single set of standardized segments can be used across different prosthesis cases, enabling the operator to achieve precise fitting through assembly rather than custom modeling, thus improving productivity while maintaining manufacturing precision.
Data Source
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AI summary
Modular apparatus for installation of multiple dental prostheses. A modular apparatus for installation of multiple dental prostheses, said apparatus being adapted to connect and join various cylindrical stumps protruding from the maxillary or mandibular bone of a patient.