Friction-Locking Conical Cap for Dental Implant Abutment
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Solution Overview
Problem
Existing dental implant arrangements require time-consuming and complex processes involving self-curing plastics to correctly position and secure conical caps on abutment posts, which is inefficient and prone to errors, especially during chewing loads.
Innovation Solution
The arrangement features an abutment post with a conically inclined outer surface and a conical cap with an inclined inner surface, enabling frictional locking for a secure, tension-resistant, and safe-to-chew connection without adhesives or screws, utilizing specific angles of inclination for optimal tensile strength and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If self-curing plastics are used to fix the conical cap, then the connection becomes secure and tension-resistant, but the processing time increases and the procedure becomes more complex
Solution Approach 1:
The patent extracts and eliminates the self-curing plastic component from the connection process. Instead of using adhesive materials, the invention achieves secure fixation through a purely mechanical friction-locking connection between the conical cap and abutment post, removing the time-consuming plastic application step while maintaining connection reliability
Solution Approach 2:
The patent replaces the chemical bonding mechanism (self-curing plastics) with a mechanical friction-locking system. The conical geometry creates sufficient friction force through normal contact pressure to secure the connection, substituting chemical adhesion with mechanical interlocking
2Manufacturing precision
If self-curing plastics are used to position the conical cap, then correct positioning is achieved, but the number of working steps increases
Solution Approach 1:
The patent removes the plastic application step from the workflow. The conical cap is positioned and fixed directly through the friction-locking mechanism, eliminating the intermediate plastic application and curing steps while maintaining positioning accuracy through the self-centering conical geometry
Solution Approach 2:
The conical geometry enables self-positioning and self-fixation. When the conical cap is inserted onto the abutment post, the conical surfaces automatically align and create the friction-locking connection without requiring external adhesive materials or additional positioning steps
3Reliability
If the conical cap is filled with plastic from the side of the dental prosthesis, then the conical cap can be fixed correctly, but the process becomes time-consuming
Solution Approach 1:
The patent replaces the labor-intensive plastic filling process with a simple mechanical insertion operation. The conical cap is secured through friction-locking achieved by inserting the cap onto the abutment post, eliminating the need for side filling and curing operations while maintaining fixation security
Solution Approach 2:
The patent extracts the plastic filling operation from the procedure. The fixation is achieved purely through the mechanical friction-locking connection between conical surfaces, removing the time-consuming plastic application step entirely
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
This solution allows for a quick, secure, and reliable connection of conical caps to abutment posts, reducing processing steps and ensuring stability under chewing forces, suitable for immediate or delayed loading in dental treatments, including incisor and molar replacements.
Implementation Method 1
The inner surface of the conical cap and the outer surface of the abutment post are inclined relative to one another in such a manner that the conical cap can be connected to the abutment post by a friction locking between the inner surface and the outer surface
Data Source
AI summary
An arrangement for mounting to a dental implant and a tool for use therewith. The arrangement includes an abutment post connected to a conical cap. The abutment post has a conical section with a conical outer surface configured to be complementary to a conical inner surface of a conical recess of the conical cap in such a manner that the conical cap can be placed on the conical section so as to at least partially receive the conical section in its conical recess. The inner surface of the conical cap and the outer surface of the abutment post are inclined relative to one another in such a manner that the conical cap can be connected to the abutment post by friction locking between the inner surface and the outer surface. The conicity of the conical section differs from the conicity of the conical recess.