Crown removal pliers
The novel crown-removing pliers with adjustable spoon-shaped jaws and knurled screw address the limitations of conventional forceps by enabling secure, high-force crown removal without damage, reducing complications and costs.
Patent Information
- Application Number
- DE202025001216
- Authority / Receiving Office
- DE · DE
- Patent Type
- Utility models
- Current Assignee / Owner
- Priority Date
- 2024-06-05
- Filing Date
- 2025-05-13
- Publication Date
- 2025-07-10
- Estimated Expiration
- 2035-05-31
AI Technical Summary
Conventional crown-removing forceps are limited by moderate withdrawal forces, leading to crown detachment issues, potential damage to antagonistic teeth and soft tissues, and high costs due to accidental slipping and remanufacturing needs.
The novel crown-removing pliers feature spoon-shaped jaws made of the same alloy as the handles, adjustable to fit between maximum and minimum crown diameters, and a knurled screw to prevent destructive forces, allowing higher removal forces without damaging the crown.
Enables secure crown removal with reduced risk of accidental slippage and tissue damage, eliminating the need for costly remanufacturing and reducing complications.
Smart Images
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Abstract
Description
In dental practice, crown-removing forceps with protective jaws and adhesives are used.These relatively expensive and expensive tongs only function up to moderate withdrawal forces. The crown 4 to be removed does not rarely remain on the tooth stump 5 located underneath. This additionally involves considerable costs.Moreover, when using conventional crown-removing forceps, accidental slipping off may occur with damage to antagonistic teeth as well as soft tissue injuries.This novel crown removing pliers have spoon-shaped pliers jaws 1 made of the same alloy as the pliers handles 2, and do not use protective jaws or adhesive.Before the crown removal, the ends of the spoon-shaped pliers jaws 1 are adjusted with the knurl screw 3 to a distance 6 which lies between the maximum crown diameter 7 and the minimum crown diameter 8.The knurled screw 3 prevents destructive centripetal forces of the pliers jaws 1 on the crown 4 from occurring and damaging the crown 4. Any remaining metallic abraded material from the edges of the spoon-shaped pliers jaws 1, which can be left on the crown 4 when being removed, can easily be wiped off or polished away.With this novel crown-removing pliers, substantially higher removal forces can be used than with conventional crown-removing pliers, because the metallic edges of the spoon-shaped pliers jaws 1 cannot yield like protective jaws made of softer materials.A fixed seated crown 4 can also be detached from the tooth stump 5 located beneath it with this novel crown-removing pliers. This eliminates the need for costly removal by destroying the crown 4 and its costly remanufacturing.In most cases, the complicated and expensive removal of the crown 4 by separation and its remanufacturing are eliminated.The risk of accidental slippage of the crown-removing forceps with damage to antagonistic teeth and / or soft tissue injuries is significantly reduced with this novel crown-removing forceps.
Claims
A crown removing tong characterized in that its jaws are spoon-like and are made of the same alloy as the tong handles.A crown-removing pliers according to claim 1 characterised in that one of its handles is provided with a thumbscrew.A crown removing pliers according to claim 2 characterised in that its thumb screw is provided with a thumb nut for locking it.
Citation Information
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