Back tooth crown removing clamp and method for operating crown prosthesis after crown removal
A technology for restorations and crowns, which is applied in the field of posterior crown removal forceps and its use to remove posterior crown restorations. It can solve the problems of large amount of grinding, difficulty in removal, and discomfort of patients, and achieves simple operation methods and shortened time. Dismantling time, the effect of reducing discomfort
Inactive Publication Date: 2016-08-03
SUZHOU HEALTH COLLEGE
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Problems solved by technology
Its disadvantages are as follows: 1. The amount of removal of the crown prepared by the release groove is relatively large, especially the cast crown; 2. The impact force has a great impact on the abutment teeth, and the patient feels more uncomfortable; 3. For the crown restoration with high edge fit, It is difficult for the crown remover to hook the edge of the crown; 4. For crown restorations with high adhesion, thick metal base, and strong retention, it is difficult to remove
The disadvantage is that it produces a certain torsion force on the abutment teeth, and the patient has a certain degree of discomfort, especially the loose teeth.
Method used
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Embodiment 1
[0020] This embodiment provides a posterior tooth crown removing pliers, which is composed of a pliers beak 1, a joint 2, a pliers handle 3, and a spring 4, the pliers beak 1 is vertically arranged on the top of the pliers handle 3, and the pliers handle 3. The thickness of the joint with the pliers beak 1 is 5 mm. The joint 2 is set at the position of the pliers handle 3 close to the pliers beak 1. The pliers handle 3 moves through the joint 2. The spring 4 is set between the pliers handles 3 close to the joint 2 and away from the pliers beak. 1; the joint 2 is a reverse clamp design, the distance between the joint 2 and the pliers beak 1 is 30 mm, and the distance between the joint 2 and the spring 4 is 15 mm, and the spring is in a compressed state; the pliers beak 1 is composed of symmetrical The designed left pliers beak 5 and right pliers beak 6 are composed. The upper end of the left pliers beak 5 is a triangle, and the lower part is a rectangle. The a side of the triang...
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The invention provides a back tooth crown removing clamp and a method for operating crown prosthesis after crown removal. The back tooth crown removing clamp is composed of a clamp beak, a joint, a clamp handle, and a spring. The clamp beak is vertically arranged on the top end of the clamp handle. The joint is arranged on the clamp handle and is close to the clamp beak. The whole crown removing clamp has a back clamping design. The clamp beak is composed of a left clamp beak and a right clamp beak, which are symmetrically arranged. The upper end of the left clamp beak is in a triangular shape, and the lower part is in a rectangular shape. The (a) edge of the triangle is vertical, the included angle between the (b) edge and the horizontal plane is 10 degrees, and the included angle between the (b) edge and the (c) edge is 45 degrees. The provided method for operating crown prosthesis after crown removal is simple, the grinding amount is little, the removal time is largely shortened, at the same time, no impact force or torsion force is loaded on the base teeth, and the discomfort feeling for patients is relieved.
Description
technical field [0001] The invention belongs to the field of oral medical instruments, and in particular relates to a posterior tooth crown removal pliers and a method for removing a posterior crown restoration by using the same. Background technique [0002] For the removal of crown restorations, there are currently two main types of crown removal instruments. One is an impact crown remover. The method of use is: use a diamond bur to grind the release groove on the buccal or lingual side of the crown, release the constraint on the side of the crown, hook the tip of the crown remover to the edge of the crown, slide the sliding hammer at the back of the impact type crown remover, and use the impact force to dislocate the crown restoration from the abutment. Its disadvantages are as follows: 1. The amount of removal of the crown prepared by the release groove is relatively large, especially the cast crown; 2. The impact force has a great impact on the abutment teeth, and the...
Claims
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IPC IPC(8): A61C3/16
CPCA61C3/16
Inventor 朱晔潘灏朱文伟葛兵
Owner SUZHOU HEALTH COLLEGE