Height-Adjustable Abutment Holder for Dental Bonding Gap Control
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Solution Overview
Problem
Current dental restoration methods face issues with the supra structure coming loose from the abutment, leading to complex reworks and material loss, despite attempts to follow manufacturer specifications and apply preload during bonding.
Innovation Solution
A supra structure abutment holder with a clamping device and auxiliary device that allows for precise height adjustment and bonding pressure control, ensuring a consistent bonding gap and alignment, using fine-pitch threads and elastic components to account for adhesive viscosity and occlusal surface features.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the supra structure is connected to the abutment by means of a positive fit with dental cement, then the bonding process is simplified, but the supra structure may come loose leading to complex reworks and material loss
Solution Approach 1:
The patent applies preliminary action by pre-adjusting the height of the abutment relative to the supra structure using a height-adjustable abutment holder before the bonding process. This ensures that the bonding gap is precisely controlled and the components are properly aligned prior to cement application, preventing loose connections and reducing the need for rework.
Solution Approach 2:
The patent employs parameter changes by allowing precise adjustment of the bonding gap dimensions and abutment height through the height-adjustable holder mechanism. This control over geometric parameters ensures optimal bonding conditions and prevents connection failures.
2Reliability
If preload is applied during bonding to hold supra structure and abutment, then bonding stability improves, but device complexity increases
Solution Approach 1:
The patent applies dynamics by incorporating a height-adjustable abutment holder that can be dynamically positioned and locked at different heights. This dynamic adjustment capability allows the operator to optimize the bonding gap and apply appropriate preload without requiring overly complex fixed mechanisms.
Solution Approach 2:
The holder mechanism is segmented into adjustable height components that can be independently positioned, allowing for precise control of the bonding gap while maintaining operational simplicity.
3Manufacturing precision
If the abutment is clamped with an implant screw before bonding, then alignment is improved, but the accessibility of the implant screw is reduced after supra structure attachment
Solution Approach 1:
The patent applies preliminary action by achieving precise alignment of the abutment relative to the supra structure using the height-adjustable holder before the supra structure is permanently attached. This preliminary alignment eliminates the need for subsequent access to the implant screw for alignment adjustments.
4Manufacturing precision
If fine-pitch threads and elastic components are used for height adjustment, then bonding pressure control is improved, but device complexity increases
Solution Approach 1:
The patent employs parameter changes by using fine-pitch threads to provide precise, incremental height adjustment of the abutment. This allows for accurate control of the bonding gap dimensions and bonding pressure while maintaining a relatively simple mechanical thread-based mechanism.
Solution Approach 2:
The patent incorporates elastic components in the height-adjustable holder to compensate for minor variations and ensure uniform bonding pressure distribution. The elastic elements provide flexibility that simplifies the overall mechanism while improving pressure control.
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 solution provides a stable and precise bonding process, reducing the risk of misalignment and material loss by ensuring consistent bonding pressure and gap dimensions, thus enhancing the reliability of dental restorations.
Implementation Method 1
using fine-pitch threads and elastic components to account for adhesive viscosity and occlusal surface features
Data Source
AI summary
The invention concerns a supra structure abutment holder for holding an arrangement of supra structure 16 and abutment 14, with a clamping device 12 for the arrangement, and is characterized in that clamping device 12 is adjustable in its height relative to an auxiliary device 26, in particular via threads.