Dental Implant Direct Superstructure Connection
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Solution Overview
Problem
Conventional dental prostheses require abutments for connecting the dental implant and superstructure, which are time-consuming, costly, and prone to adhesive gaps, limiting design flexibility and durability due to the need for multiple abutment sizes and shapes, and can be biomechanically unsuitable for elongated superstructures.
Innovation Solution
A dental implant with an external thread for jawbone fixation and an internal thread for superstructure attachment, featuring a convex interface with a rounded curvature and annular support surface for radial force absorption and centering, allowing direct connection without an abutment, enabling stable and cost-effective manufacturing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an abutment is used to connect the dental implant and superstructure, then the connection is achieved, but the manufacturing process becomes time-consuming and costly
Solution Approach 1:
The patent merges the abutment and superstructure into a single integrated component. The superstructure includes an integrated connection element with external threads that directly engage with the implant's internal threads, eliminating the need for a separate abutment. This integration reduces the number of manufacturing steps and assembly operations while maintaining connection stability.
Solution Approach 2:
The connection element is designed as a universal component that can be directly attached to various implant types. The external threaded structure on the connection element provides multi-functionality by enabling direct screwing onto the internal threaded implant body, serving both as a structural connector and as the final abutment function.
2Adaptability or versatility
If multiple abutments of different sizes and shapes are used, then different superstructures can be accommodated, but storage costs and device complexity increase
Solution Approach 1:
The patent segments the superstructure into modular components: the crown portion and the connection element. The connection element with its standardized external threads can be attached to different implant types, allowing versatility without requiring multiple specialized abutments. This modular approach reduces the variety of components that need to be stored and managed.
Solution Approach 2:
The connection element serves as a universal interface that can be attached to various implant types through its external threaded structure. This single multi-functional component replaces the need for multiple specialized abutments, reducing device complexity while maintaining adaptability to different superstructure requirements.
3Adaptability or versatility
If a short and small abutment is used, then it fits any anatomy, but biomechanical suitability for elongated superstructures is compromised
Solution Approach 1:
The connection element is designed with a dynamic geometry that adapts to different anatomical requirements. The external threaded structure allows for variable engagement lengths and angles, enabling the connection to be optimized for each specific case while maintaining biomechanical strength. The geometry can be adjusted to accommodate both short and elongated superstructures.
Solution Approach 2:
The patent employs parameter changes in the connection element's geometry, particularly in the thread pitch, diameter, and engagement length, to optimize biomechanical strength for different superstructure lengths. These parameter adjustments allow the same basic design to accommodate various anatomical requirements while maintaining structural integrity.
4Manufacturing precision
If manual grinding and bonding are used, then precise results are achieved, but the process is time-consuming and cost-intensive
Solution Approach 1:
The patent replaces the manual mechanical process of grinding and bonding with a standardized threaded connection system. The external threads on the connection element engage directly with the internal threads in the implant, providing a mechanical interlock that eliminates the need for manual grinding and adhesive bonding. This substitution maintains precision while significantly improving manufacturing efficiency.
Solution Approach 2:
The connection system uses standardized thread parameters (pitch, diameter, profile) that can be manufactured with high precision through automated processes. These standardized parameters ensure consistent connection quality without requiring manual grinding, thereby improving productivity while maintaining manufacturing precision.
Data Source
AI summary
Dental implant, comprising an external thread arranged on an outside of the dental implant for fastening the dental implant to a jawbone. Further, the implant comprises an opening extending along a longitudinal axis of the dental implant, in which opening an internal thread for fastening a superstructure to the dental implant is arranged. Still further, the implant comprises an interface for fastening the superstructure to the dental implant, which interface is arranged at a front end of the dental implant. The interface is suitable for direct attachment of a superstructure to the dental implant without the use of an abutment.