Self-adaptive forming sheet clamping ring

Abstract

The self-adaptive forming piece clamping ring comprises a ring body, the ring body is provided with an opening, the two ends of the opening are a first clamping end and a second clamping end, the first clamping end comprises a first fixing part and two first arc-shaped clamping faces, and the first fixing part is fixed to one side of the opening of the ring body; the second clamping end comprises a second fixing part and two second arc-shaped clamping surfaces, and the second fixing part is fixed on the other side of the opening of the ring body; a first elastic connecting part is arranged between the first fixing part and the two first arc-shaped clamping surfaces, one side of the first elastic connecting part is connected with the first fixing part, and the other side of the first elastic connecting part is connected with the two first arc-shaped clamping surfaces. The self-adaptive forming piece clamping ring can adaptively adjust the fitting state of each arc-shaped clamping surface and a tooth wall along with the tooth state to improve the fitting degree of the forming piece and the tooth, is firm in clamping, not easy to fall off, good in tooth filling effect, free from fighting for space with a clearance wedge, and convenient to use.

Description

technical field [0001] The invention relates to the technical field of dental restoration, in particular to an adaptive forming sheet clamping ring. Background technique [0002] In clinical dentistry, when there is a hole in the tooth that needs to be filled and repaired, a forming sheet is used. The forming sheet is a thin metal sheet that is attached to the outside of the cavity and shapes the filling in the cavity. During the use of the forming sheet, a gap wedge will be inserted between two adjacent teeth to make the lower side of the forming sheet close to the tooth wall, and the upper side of the gap wedge will clamp the forming sheet with a clamping ring to better fix the forming sheet. The existing clamping ring is generally a ring made of stainless steel, with an opening, and the two ends of the opening are cylindrical clamping ends. This clamping end is in single-point contact or line contact with the forming piece, and the clamping area is small. , so that the f...

AI Technical Summary

Problems solved by technology

The existing clamping ring is generally a ring made of stainless steel, with an opening, and the two ends of the opening are cylindrical clamping ends. This clamping end is in single-point contact or line contact with the forming piece, and the clamping area is small. , so that the fit between the forming piece and the tooth body is low, and it is easy to cause gaps and form overhangs

In addition, the shape, size, posture, and gap of the teeth vary from person to person, and the shape varies greatly. This kind of clamping end does not have the function of adjusting and adapting to the tooth wall, and there is no retention structure, which makes it less suitable for tooth restoration. The fit between the forming piece and the tooth is further reduced, and it is easy to fall off or shift during the clamping process, resulting in filling failure. At the same time, its clamping force is very limited and cannot generate effective tooth separation force, resulting in impaction after filling

In addition, there is also the problem of space competition between the clamping end and the gap wedge, which brings inconvenience to the use

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