Dental Implant Fixture Rotational Alignment via Torque Transfer
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Solution Overview
Problem
The existing methods for connecting dental components to fixtures in dental implant procedures face challenges in accurately positioning and securing components, especially in limited spaces, due to difficulties in rotating small components correctly and ensuring proper rotational orientation, which can lead to incorrect axial positioning and long-term complications.
Innovation Solution
A dental implant set is designed with a fixture, a dental component, and a fixation screw, where the contacting surfaces are arranged to maximize torque transfer between the fixation screw and the dental component, allowing the component to rotate with the screw until it reaches the correct engaged position, enabling one-handed operation and ensuring proper rotational alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If indexing means are used to ensure correct rotational positioning of dental components, then manufacturing precision is improved, but device complexity increases and ease of operation deteriorates due to difficulty in positioning small components in limited space
Solution Approach 1:
The fixation screw serves dual functions: it both secures the dental component to the fixture and simultaneously rotates the component into correct rotational positioning through its torque application. The screw's threading and contact surfaces are designed to automatically guide and rotate the component during the tightening process, eliminating the need for separate manual rotation operations by the dentist.
Solution Approach 2:
The invention combines the rotational positioning function with the fixation function into a single integrated process. The fixation screw not only fastens the component but also performs rotational alignment through its interaction with the component's contacting surfaces, merging two previously separate operations (positioning and fastening) into one unified action.
2Adaptability or versatility
If the dental component is made small to fit limited oral space, then adaptability is improved, but manufacturing precision deteriorates due to difficulty in accurately positioning and rotating small components
Solution Approach 1:
The fixation screw automatically performs the rotational positioning function during the tightening process, eliminating the need for the dentist to manually rotate small components in difficult-to-reach areas. The screw's design with specific contact surfaces and torque characteristics enables it to self-guidedly rotate the component into correct alignment despite the component's small size and limited accessibility.
3Manufacturing precision
If manual rotation of dental components is required to achieve correct orientation, then manufacturing precision can be improved, but productivity deteriorates due to time-consuming rotation process and difficulty in one-handed operation
Solution Approach 1:
The invention merges the rotational positioning operation with the fixation tightening operation into a single unified process. As the dentist tightens the fixation screw, the screw simultaneously rotates the dental component into correct orientation through its contact surfaces and torque application, eliminating the need for separate manual rotation steps and enabling one-handed operation throughout the entire process.
Solution Approach 2:
The fixation screw automatically performs the rotational positioning function during tightening, eliminating the need for separate manual rotation operations. This self-service capability significantly reduces installation time and improves productivity while maintaining precise rotational positioning.
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 simplifies the connection process by allowing the dental component to rotate with the fixation screw, facilitating correct rotational positioning and secure fixation, thereby reducing the risk of axial misalignment and improving the efficiency of dental implant installation.
Implementation Method 1
the maximum capacity to transmit torque is greater between the first and second contacting surfaces than between the third and fourth contacting surfaces, so that when the fixation screw is subject to a torque and an axial force applied by a user, the dental component will rotate with the fixation screw
Data Source
AI summary
The present invention relates to a dental implant set having a fixture for insertion into a bore hole arranged in bone tissue having first indexing means, a dental component having second indexing means and being adaptable to the fixture in an engaged position where the first and second indexing means mate and in an intermediate position where the dental component and the fixture are in contact with each other but the first and the second indexing means do not mate, and a fixation screw being adapted for fixating the dental component to the fixture. The present invention also relates to a method for attaching a dental component to a dental fixture.