Dental Abutment Indexing Element for Angled Implant Orientation
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Solution Overview
Problem
The production of dental prostheses with angled abutments is hindered by the inability to accurately determine the orientation of the apical section of the implant during digital scanning, leading to inaccuracies and increased effort, as manual intervention is often required due to the lack of data on gum tissue surrounding the jaw.
Innovation Solution
An abutment with an indexing element on its coronal section, which cooperates with a display element to specify the orientation of the apical section, allowing for unambiguous determination of the apical section's orientation during digital scanning, enabling precise adaptation of the dental prosthesis and automated 3D printing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If digital scanning is used to capture the oral situation, then productivity is improved, but measurement precision deteriorates because the orientation of the apical section cannot be determined
Solution Approach 1:
An indexing element (protrusion or recess) is introduced as an intermediary feature on the abutment's outer surface. This indexing element cooperates with the display element during digital scanning to transmit orientation information about the apical section, enabling the scanning system to accurately determine the implant's orientation without manual intervention.
2Measurement precision
If manual modeling is used to adapt the dental prosthesis, then measurement precision is improved, but productivity deteriorates due to increased effort and time
Solution Approach 1:
The abutment is designed with self-describing features (indexing elements) that automatically provide orientation information during digital scanning. This eliminates the need for manual modeling or additional documentation steps, as the system self-determines the apical section orientation through the indexing element's geometric features.
3Adaptability or versatility
If angled abutments are used to accommodate various jaw shapes, then adaptability is improved, but device complexity increases due to the need for coordinated rotational and axial orientations
Solution Approach 1:
The indexing element is designed with asymmetric geometric features (specifically shaped protrusions or recesses) that encode orientation information. This asymmetric design allows the system to distinguish between different rotational positions and axial orientations, enabling accurate determination of the apical section's orientation without requiring complex coordination procedures.
Data Source
AI summary
An abutment for holding a dental prosthesis to a jaw implant, having: an apical section detachably fastening the abutment to the jaw implant, the apical section being structured along a first central axis; a coronal section detachably fastening the dental prosthesis to the abutment, the coronal section being structured along a second central axis, wherein the second central axis extends at an angle to the first central axis; and an indexing element in a shell surface of the coronal section specifying an orientation of a display element that is coupleable to the coronal section for a digital scanning operation, based on an orientation of the first central axis. A display element coupling to an abutment coronal section, and displaying a position and orientation of the abutment for a digital scanning operation, a tooth model system having an abutment and a display element, and a method producing a dental prosthesis.