Temporary Abutment with Scanning Markers and Removable Cap
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Solution Overview
Problem
Existing dental healing abutments often result in discrepancies between the emergence profile of the gingiva and the installed prosthesis, requiring additional visits and potentially compromising the aesthetic outcome. Additionally, there is a need to integrate scanning technologies with temporary prosthesis temporization.
Innovation Solution
A temporary abutment assembly that includes a temporary abutment with anti-rotational features and retention grooves, along with a temporary abutment cap that covers informational markers on the temporary abutment. This assembly allows for the attachment of a temporary prosthesis, enabling gingival healing and subsequent scanning to generate data for creating a patient-specific abutment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a round healing abutment is used, then the implant can be temporarily protected and healed, but the emergence profile of the gingiva does not match the final prosthesis shape, requiring additional visits and compromising aesthetic outcome
Solution Approach 1:
The abutment assembly is divided into multiple components: a base abutment portion, a removable abutment cap, and a temporary prosthesis. This segmentation allows each component to serve its specific function - the base abutment provides structural support and scanning features, the removable cap allows access for scanning while maintaining protection, and the temporary prosthesis guides the gingival emergence profile to match the final restoration.
Solution Approach 2:
The temporary prosthesis is placed on the abutment before the final prosthesis is fabricated. This preliminary action allows the gingival tissue to heal around a shape that already approximates the final prosthesis geometry, so when the final prosthesis is made, the emergence profile is already correct, eliminating the need for additional adjustment visits.
2Measurement precision
If scanning features are integrated into the abutment, then accurate data can be collected for patient-specific prosthesis creation, but the abutment structure becomes more complex
Solution Approach 1:
The scanning features (informational markers) are merged with the abutment structure itself rather than being separate components. The markers are positioned on the abutment surface at known locations relative to the implant, allowing the abutment to serve dual purposes: as a protective healing component and as a scanning reference structure. This integration provides accurate scanning data while adding minimal structural complexity.
3Manufacturing precision
If a temporary prosthesis is placed to approximate the final shape, then the gingival emergence profile is improved, but the device complexity increases
Solution Approach 1:
The temporary prosthesis is designed as a separate, removable component that fits over the abutment cap. This segmentation allows the temporary prosthesis to be easily placed and removed without permanently altering the abutment structure. The temporary prosthesis provides the correct emergence profile guidance while the modular design keeps the overall system relatively simple and manageable.
Data Source
AI summary
A lower region of a temporary abutment includes an anti-rotational feature for non-rotationally mating with a dental implant. An upper region of the temporary abutment includes a first anti-rotational structure and at least one retention groove. A top surface of the temporary abutment includes one or more informational markers that provide information concerning the dental implant. A temporary abutment cap is configured to be coupled to the upper region of the temporary abutment. The temporary abutment cap has at least one projection configured to mate with the at least one retention groove of the temporary abutment. The temporary abutment cap has a second anti-rotational structure that is configured to slidably engage the first anti-rotational structure of the temporary abutment. The temporary abutment cap is configured to be coupled with a temporary prosthesis such that the temporary prosthesis and the temporary abutment cap are removable from the temporary abutment.