Pivotable Collar Abutment for Angled Dental Implant Anchoring
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Solution Overview
Problem
Existing dental devices face challenges in securely anchoring artificial teeth at angled orientations within the mouth, leading to excessive wear and user discomfort due to non-parallel implants, which existing one-piece ball-shaped abutments cannot effectively manage.
Innovation Solution
A dental device featuring a pivotable collar with a hemispherical convex bottom and a hollow structure, allowing adjustable angular orientation and secure fixation using a retention device, such as an attachment screw, to accommodate angled implants and prevent reorientation, thereby ensuring proper alignment and reducing wear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If one-piece ball shaped abutments are used to connect overdentures to implants, then the structure is simple and manufacturing is easy, but the device cannot accommodate angled implants beyond a few degrees and causes excessive wear
Solution Approach 1:
The device is divided into multiple components: a collar component with a spherical interface, an abutment component with a corresponding spherical recess, and a retainer component. This segmentation allows the collar to pivot relative to the abutment, accommodating implant angles while maintaining manufacturing simplicity through modular assembly.
Solution Approach 2:
The collar component is designed to be movable rather than fixed, allowing it to pivot and adjust to various angular orientations of the implant. The retainer component secures the collar in the desired position, providing both adaptability and stability.
2Adaptability or versatility
If implants are positioned at angled orientations to accommodate irregular bone structure, then adaptability to patient anatomy is improved, but existing abutments cannot be easily seated and cause excessive wear
Solution Approach 1:
The collar component features a spherical interface that interfaces with a spherical recess in the abutment component. This spherical geometry allows for smooth pivoting and angular adjustment to accommodate irregular bone structures while distributing contact forces evenly, thereby reducing excessive wear at any single point.
3Adaptability or versatility
If the collar is made pivotable to accommodate various angles, then angular adaptability is improved, but device complexity increases
Solution Approach 1:
The device is divided into discrete components (collar, abutment, retainer) that can be manufactured separately using standard processes and then assembled. This segmentation maintains manufacturing simplicity while enabling the pivotable functionality through the interface between components.
Solution Approach 2:
The retainer component acts as an intermediary that secures the collar to the abutment at a specific angular position. It provides the locking function without requiring complex mechanisms, simply maintaining the collar in its adjusted position.
Data Source
AI summary
A dental device for anchoring a dental appliance within a patient's mouth, including an abutment with a distal end characterized by a substantially concave surface and a first hollow, a pivotable collar with a substantially convex bottom and a second hallow formed through it from top to bottom, and an attachment screw. The bottom of the pivotable collar is configured to pivotally rest against the concave surface of the abutment. The attachment screw is configured to extend partially through the collar and connect with the abutment so as to secure the collar to the abutment. When not secured, the collar can be angulated relative to the abutment to provide for the orientation of a dental prosthesis within a patient's mouth.