Two-Part Abutment Blank Holder That Protects the Implant Connection
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Solution Overview
Problem
Existing holding devices for dental abutment blanks during milling often exert forces on the implant connection, risking damage and complicating the coupling process, which can lead to inaccurate seating and potential inflammation.
Innovation Solution
A two-part holding frame system with a main frame and a blank holder, featuring a fixation element that transitions between a floating and engaged position, allowing secure attachment of the abutment blank without direct contact to the implant interface, thereby minimizing stress on the implant connection and simplifying coupling and decoupling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the abutment blank is held on the implant connection during machining, then the blank is securely retained for machining, but forces are exerted on the implant connection risking damage
Solution Approach 1:
A holder is introduced as an intermediary component between the abutment blank and the clamping device. The holder receives clamping forces on its own structure rather than transmitting them to the implant connection, thereby protecting the implant interface from damaging forces while still enabling secure retention of the abutment blank during machining operations.
2Reliability
If the abutment blank is coupled to the holder via the implant connection, then the blank is securely retained, but the coupling process becomes complex requiring additional components
Solution Approach 1:
The coupling function is extracted from the implant connection and relocated to a dedicated holder component. The implant connection is taken out from the coupling process entirely, serving only its original purpose of connecting the abutment to the implant. This separation simplifies the coupling mechanism by concentrating all coupling functions in the holder, reducing the need for additional complex components.
3Manufacturing precision
If the implant connection is used for holding the blank, then the blank position is fixed, but the implant connection may be damaged compromising seating accuracy
Solution Approach 1:
The holder acts as a mediator that provides the fixing function during machining without involving the implant connection. By clamping the abutment blank to the holder instead of fixing it directly to the implant, the implant connection is protected from forces that could compromise its integrity or seating accuracy, while the holder ensures precise positioning throughout the machining process.
Data Source
AI summary
According to one example, a holding device system including a two-part holding frame having a blank holder coupled to a main frame is disclosed. The two-part holding frame can define a processing space and a fixation space. The holding device system can further include at least one fixation element having a head positioned within the fixation space and a threaded shaft extending within and engaged with a bore of the two-part holding frame. In one example, when the blank holder is coupled to the main frame, the at least one fixation element is unable to be removed from the two-part holding frame.