Elastic Anchoring Device for Dental Implants
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Solution Overview
Problem
Existing anchoring devices for implant-supported dental prostheses face challenges such as overloading of implants and peri-implant bone, inaccuracies in position transfer, and poor compensation for disparallelities, leading to reduced survival rates and increased stress thresholds.
Innovation Solution
An elastic connecting element is introduced between the anchoring male and the implant, allowing for vertical stability while enabling lateral and angular adjustments, with the option to adjust restoring force via diameter and potentially using shape memory alloys like nickel-titanium, to create a more favorable loading situation and compensate for larger pillar misalignments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If rigid anchoring devices are used to ensure stable connection, then connection strength is improved, but stress concentration and overloading of implants occur
Solution Approach 1:
The patent introduces a resilient element (spring or elastomer) between the anchoring male and base that预先 absorbs and distributes mechanical stresses before they reach the implant. This cushioning mechanism prevents stress concentration and overloading while maintaining secure connection, directly resolving the contradiction between connection strength and stress reduction.
2Measurement precision
If fixed rigid connections are used to maintain precise positioning, then position accuracy is improved, but inability to compensate for manufacturing inaccuracies and disparallelities occurs
Solution Approach 1:
The patent replaces rigid fixed connections with a dynamic resilient connection that allows controlled movement and adjustment. The spring or elastomer enables the anchoring device to adapt to manufacturing tolerances and pillar disparallelities while maintaining stable positioning, resolving the contradiction between position accuracy and adaptability.
3Adaptability or versatility
If resilient elements are added to compensate for misalignments, then adaptability is improved, but device complexity increases
Solution Approach 1:
The patent employs a resilient element (spring or elastomer) as a flexible component that provides adaptability through elastic deformation. This single flexible element compensates for pillar disparallelities and manufacturing inaccuracies without requiring complex adjustment mechanisms, thereby improving adaptability while minimizing increases in device complexity.
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
The elastic anchoring device reduces the loading on the peri-implant bone, improves the restoring force, and enhances the ability to compensate for misalignments, resulting in improved stability and performance compared to traditional anchoring methods, as demonstrated by in vitro studies.
Implementation Method 1
an elastic connecting element (5), in particular a spring or an elastomer, which elastically connects the anchoring male (3) to the base (4)
Implementation Method 2
with the option to adjust restoring force via diameter and potentially using shape memory alloys like nickel-titanium
Data Source
Figure 1
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AI summary
The invention relates to an anchoring device (1) for implant-supported removable dental prostheses, having an anchoring matrix (2); having an anchoring patrix (3) connected to the anchoring matrix (2); and having a base (4) that comprises a connection geometry arrangement (4A) and an implant thread (4B) for fastening the anchoring device (1) in an implant (6), characterized in that the anchoring patrix (3) and the base (4) are interconnected by an elastic connection element (5).