Gingiva Healing Abutment with Movable Reference Member
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Solution Overview
Problem
Existing healing screws in dental implantology require frequent removal and manipulation during impression taking, leading to time-consuming and unpleasant procedures for patients, increased risk of peri-implantitis, and unnatural gingival healing contours.
Innovation Solution
A healing abutment with a foot and head aligned along an axis Z, connected by a clamping screw, featuring a reference member that defines a reference frame oriented in at least two dimensions, allowing precise elemental positioning without the need for removal during impression taking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a healing screw is used to prevent food residue deposition and promote gingival healing, then the gingiva can heal around the implant, but the healing screw requires frequent removal and manipulation during impression taking, which is time-consuming and increases the risk of peri-implantitis
Solution Approach 1:
The invention extracts the reference function from the healing screw by adding a separate reference member with reference fingers. This allows the healing screw to remain in place for continuous gingival healing without needing removal for impression taking, as the reference member provides the necessary positioning information.
Solution Approach 2:
The reference member acts as an intermediary between the healing screw and the impression taking process. It provides reference fingers that can be read during impression taking without requiring removal of the healing screw, thus mediating between the need for continuous healing and the need for precise measurement.
2Reliability
If a healing screw is used to promote gingival healing, then the implant can be protected, but the gingiva heals in an unnatural circular contour, resulting in an unnatural emergence profile
Solution Approach 1:
The invention applies local quality by providing different reference functions at different locations. The reference fingers are positioned at specific locations on the reference member to provide directional guidance for gingival healing, allowing the gingiva to heal in a natural contour rather than a uniform circular shape.
3Measurement precision
If the healing screw is removed for impression taking, then precise measurement of available space can be obtained, but the risk of peri-implantitis increases and the procedure becomes unpleasant for the patient
Solution Approach 1:
The reference member serves as an intermediary that enables precise measurement without requiring removal of the healing screw. The reference fingers on the reference member can be read during impression taking to determine the position and orientation of the healing abutment, providing the necessary measurement information while the healing screw remains in place to protect the implant.
4Loss of time
If a healing abutment with reference member is used, then frequent manipulation is eliminated and peri-implantitis risk is reduced, but the device complexity increases
Solution Approach 1:
The invention segments the healing abutment into distinct functional components: the healing screw for protection and healing, the reference member for positioning information, and the abutment body for structural support. This segmentation allows each component to perform its specific function independently, reducing the need for manipulation while maintaining clarity in the overall structure.
Data Source
AI summary
A healing abutment configured to be provided in an implant prior to fitting a prosthetic tooth and comprising a leg and a head which are aligned along an axis Z and connected by means of a tensioning screw, the leg comprising a lower leg portion configured to cooperate with the implant, the head comprising a lower head portion configured to cooperate with an upper portion of the leg, the healing abutment comprising a reference member which defines a reference point and is configured to cooperate with the leg in order to define a plurality of basic reference point positions and is movably mounted relative to an upper portion of the head having a predetermined shape in order to allow the selection of at least one optimum basic position from the plurality of basic positions.