Implant Abutment With Adjustment Groove for Stable Occlusion
Solution Overview
Problem
Conventional dental implant abutments face challenges in maintaining a stable coupling force with artificial teeth, especially in cases with a short vertical dimension of occlusion, leading to potential fractures and aesthetic issues due to complex installation procedures and risk of separation under external forces.
Innovation Solution
The implementation of an abutment with an adjustment groove on its upper coupling portion, featuring an inclined inner and outer side surface, which directs external forces towards the fixture, enhancing the coupling force and stability by adjusting the angle of the groove's imaginary surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the length of the abutment inserted into the artificial tooth is shortened to accommodate a small vertical dimension of occlusion, then the aesthetic appearance is improved, but the coupling force between the artificial tooth and the abutment is weakened
Solution Approach 1:
The abutment is divided into multiple sections with different diameters along its length. The upper portion has a larger diameter to provide sufficient coupling force with the artificial tooth, while the lower portion has a smaller diameter to accommodate the limited vertical dimension of occlusion. This segmentation allows the abutment to maintain both aesthetic appearance and structural reliability.
Solution Approach 2:
Different portions of the abutment are given different local qualities in terms of diameter. The upper coupling portion has a larger diameter optimized for bonding strength with the artificial tooth, while the lower portion has a reduced diameter suitable for the short vertical dimension. This local differentiation resolves the contradiction between length and coupling force.
2Reliability
If the vertical dimension of occlusion is large, then the coupling force is improved, but the aesthetic appearance deteriorates due to increased abutment length
Solution Approach 1:
The abutment is segmented into an upper portion with larger diameter for coupling and a lower portion with smaller diameter for aesthetic purposes. This allows the abutment to achieve sufficient coupling force without excessive overall length, improving aesthetic appearance even when vertical dimension of occlusion is large.
Solution Approach 2:
Instead of increasing length in the vertical dimension to improve coupling force, the solution transitions to the radial dimension by increasing the diameter of the upper portion. This dimensional shift allows coupling force improvement without compromising aesthetic appearance.
3Reliability
If a ucla abutment is used to prevent separation in short vertical dimension cases, then the coupling force is improved, but the device complexity and installation procedure become complicated
Solution Approach 1:
The abutment with differentiated diameter sections serves multiple functions: it provides sufficient coupling force for short vertical dimensions, maintains aesthetic appearance, and simplifies installation compared to UCLA abutments. This universal design eliminates the need for specialized complex procedures while achieving the same reliability goals.
4Length of moving object
If the abutment height is lowered to improve aesthetic appearance, then the visual profile is improved, but the structural integrity and coupling force are weakened
Solution Approach 1:
The abutment features local quality differentiation where the upper portion has a larger diameter optimized for coupling strength with the artificial tooth, while the overall height is reduced for aesthetic purposes. This local enhancement of diameter compensates for the reduced height, maintaining structural integrity while improving appearance.
Solution Approach 2:
To compensate for reduced height in the vertical dimension, the solution increases the diameter in the radial dimension. This dimensional substitution allows the abutment to maintain coupling strength despite lowered height, achieving both aesthetic and structural goals.
Data Source
AI summary
An implant abutment capable of stably adjusting vertical dimension of occlusion, the implant abutment comprising: an upper coupling portion that is an upper portion coupled to an artificial tooth; a lower coupling portion that is a lower portion coupled to a fixture; an exposed portion that is a portion exposed to the outside between the upper coupling portion and the lower coupling portion, and an adjustment groove that is formed on an outer circumferential surface of the upper coupling portion and inwardly recessed in the upper coupling portion. According to the implant abutment capable of stably adjusting vertical dimension of occlusion of the present invention, although the abutment has a low upper coupling portion, it can maintain stable coupling with the artificial tooth, thereby ultimately ensuring ease of adjusting a height of the abutment.