Disposable tooth preparation adjacent surface forming device

Abstract

The utility model discloses a disposable tooth preparation adjacent surface forming device, which is mainly used in a tooth preparation process in which tooth class II hole defects need crown repair, and belongs to the field of storage of oral medical supplies. Comprising a forming surface (4) and a supporting surface (3), the length of the first main wedge is 17mm, the height of the first main wedge is 10mm, the abduction angle of the tip end of the first main wedge is 5 degrees, the thickness of the first main wedge matched sheets is 0.3 mm, the length of the first main wedge matched sheets is 17mm, and the height of the second main wedge matched sheets is 10mm. Comprising a forming face (4) and a supporting face (3), the length is 15 mm, the height is 10 mm, the abduction angle of the tip end is 5 degrees, and the second main wedge matched piece is a uniform-thickness piece with the thickness being 0.3 mm, the length is 15 mm, and the height is 10 mm. The dental implant is reasonable in design, can avoid abrasion of adjacent teeth and waste of materials, ensures tight sealing of the edge of the cavity, can simplify the treatment process and improve the working efficiency, and has high practicability.

Description

Technical Field

[0001] The utility model relates to a disposable tooth preparation proximal surface molding device, which is mainly used in the tooth preparation process of tooth class II cavity defects requiring crown restoration, and belongs to the field of oral medical supplies storage. Background Art

[0002] At present, teeth with Class II cavities, especially those with Class II cavities that have undergone root canal treatment, often require crown restoration. Before tooth preparation, such teeth usually need to be filled with resin materials to fill the defects on the adjacent and occlusal surfaces, and then the tooth preparation is performed. At present, molding sheets are mostly used to restore the adjacent surface morphology of the tooth. The molding sheets are pre-bent and placed between the affected tooth and the adjacent tooth. The molding sheets are fitted to the affected tooth through molding clamps, and then the defects on the adjacent and occlusal surfaces are filled. However, the gingival and adjacent edges of Class II cavities with larger defects are often irregular. When the molding sheet is clamped, it is difficult to fit closely with the surface of the affected tooth. If there is a gap, the filling material on the edge of the cavity often overflows, requiring shaping and polishing, which increases the workload. In addition, after filling the defect, the affected tooth and the adjacent tooth are restored to contact, but part of the adjacent filling material needs to be removed during tooth preparation before crown restoration, so that the adjacent surface of the affected tooth is retracted, and it is extremely important not to wear the adjacent teeth during the process, which not only wastes materials, but also increases operation time and reduces work efficiency. If tooth preparation is performed on the adjacent defect of the affected tooth first and then tooth filling is performed, it is difficult to ensure that the filling material on the gingival side is completely compacted, which may easily lead to gaps at the edge of the gingival cavity or overflow of the filling material. Utility Model Content

[0003] The purpose of the utility model is to provide a disposable proximal surface molding device with reasonable design and simple structure, which reduces the difficulty of molding filling materials, can reduce the stimulation to surrounding soft tissues, avoid waste of materials, and can reduce the steps of anterior tooth preparation operation for crown restoration of Class II cavity teeth, thereby improving work efficiency.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: the disposable proximal surface forming device comprises a first main wedge, four first main wedge matching pieces, and a second main wedge, four second main wedge matching pieces. The first main wedge and its matching pieces are suitable for Class II cavities of molars. The first main wedge is a wedge-shaped piece that is wide at the top and narrow at the bottom, 17 mm long, 10 mm high, and has a tip abduction angle of 5°. The matching pieces of the first main wedge are uniformly thick thin pieces with a thickness of 0.3 mm, 17 mm long, and 10 mm high. The second main wedge and its matching piece are suitable for Class II cavities in premolars. The second main wedge is a wedge-shaped piece that is wide at the top and narrow at the bottom, 15mm long, 10mm high, and has a tip abduction angle of 5°. The second main wedge and matching pieces are all uniform thin pieces with a thickness of 0.3mm, 15mm long, and 10mm high. The main wedge and matching pieces have frosted surfaces and are blunt at the corners. Each main wedge includes a molding surface and a supporting surface. When in use, the molding surface faces the defective surface of the affected tooth, and the supporting surface is adjacent to the adjacent tooth or matching piece corresponding to the defect.

[0005] The utility model uses a main wedge and a corresponding matching piece to shape the adjacent surface of a tooth with a Class II cavity before crown restoration. The defective adjacent tooth body is simply ground off to make it in an inward state, and then an adjacent surface forming piece and a forming clamp are placed to clamp and fix it. Then a corresponding main wedge is placed between the forming piece and the healthy adjacent tooth, with the forming surface facing the forming piece. The main wedge is clamped to deform the forming piece and make it in close contact with the tooth body on the gingival side. If the gap is large and cannot be clamped, a corresponding matching piece is placed on the supporting surface of the main wedge until it is clamped. The abduction angle of the main wedge makes the adjacent surface of the affected tooth form an inward shape to fill the tooth defect. Thereafter, when the tooth body is prepared, the adjacent surface only needs to be simply trimmed, which reduces the risk of wearing the adjacent teeth, avoids material waste, simplifies the treatment process, and shortens the treatment time.

[0006] Preferably, the first main wedge and the second main wedge both include a molding surface and a supporting surface. When the main wedges are placed, they are wedged from the occlusal surface to the gingival side, with the molding surface facing the molding sheet and clamped to the molding sheet, and the supporting surface facing the adjacent teeth corresponding to the defect. If the gap is large and cannot be clamped, a corresponding matching sheet is added to the supporting surface of the main wedge until it is clamped and there is no gap between the molding sheet and the gingival side of the tooth.

[0007] Preferably, when it is inconvenient to add a matching piece inside the mouth, the main wedge and the matching piece can be combined outside the mouth first so that they are wedged into the gap as a whole.

[0008] Preferably, both the main wedge and the matching piece have frosted outer surfaces to enhance the retention effect.

[0009] Preferably, the sheet material is polyester.

[0010] The beneficial effect of the utility model is that the disposable tooth preparation adjacent surface molding device has a simple structure and a reasonable design, which can avoid wearing adjacent teeth, avoid material waste, ensure that the edge of the cavity is tightly closed, and can simplify the crown restoration treatment process for Class II cavity-affected teeth, improve work efficiency, shorten treatment time, and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0012] Figure 1 It is a schematic diagram of the main wedge of the utility model;

[0013] Figure 2 It is a schematic diagram of the matching sheet of the utility model;

[0014] Figure 3 The utility model is a structural schematic diagram of the affected tooth, adjacent teeth, forming piece, main wedge and matching piece when they cooperate with each other.

[0015] In the figure, 1. frosted surface, 2. rounded corners, 3. supporting surface, 4. molding surface, 5. flat surface. DETAILED DESCRIPTION

[0016] The following is a further description of the embodiments of the present invention in conjunction with the accompanying drawings:

[0017] like Figure 1-2 As shown, the disposable proximal surface shaping device of the utility model comprises a main wedge and a main wedge matching sheet. The main wedges are all wedge-shaped, wide at the top and narrow at the bottom, and the tip abduction angle is 5°. Each main wedge comprises a shaping surface and a supporting surface. The shaping surface faces the defective surface of the affected tooth, and the supporting surface is adjacent to the adjacent tooth or matching sheet corresponding to the defect. The matching sheet is a uniformly thick sheet with a thickness of 0.3 mm. The main wedge and the matching sheet are both frosted surfaces and blunt at the corners.

[0018] like Figure 3 As shown in the figure, taking a molar Class II cavity defect that requires tooth preparation before crown restoration and only needs to use a first main wedge and a first main wedge accessory sheet as an example, first perform simple tooth preparation on the adjacent surfaces of the defect before filling the defect. Under full visibility, the adjacent surface gap can be easily opened and prepared into an inward-retracted state to avoid damaging the adjacent teeth. Then, clamp the molding sheet so that its gingival side is in close contact with the gingival side of the tooth defect. The first main wedge and the first main wedge accessory sheet are combined outside the mouth, that is, the accessory sheet is fitted with the main wedge support surface, so that the molding surface faces the molding sheet direction, and then the entire sheet is wedged toward the gingival side until the molding sheet and the tooth are completely pressed and fitted. At this time, use the filling material to fill the defect tightly. After the material solidifies, first take out the adjacent surface molding device and then remove the molding sheet. At this time, the adjacent gingival side of the tooth is tightly filled and has an inward-retracted appearance. Only simple preparation and polishing are required to meet the tooth preparation requirements, which greatly improves work efficiency and has strong practicality.

[0019] The present invention is not limited to the above-mentioned specific implementation modes. Changes, modifications, additions or substitutions made by ordinary technicians in this field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A disposable tooth preparation proximal surface shaping device, comprising a first main wedge, four first main wedge matching pieces, and a second main wedge, four second main wedge matching pieces, characterized in that: The first main wedge is a wedge-shaped device that is wide at the top and narrow at the bottom, including a forming surface (4) and a supporting surface (3), with a length of 17 mm and a height of 10 mm. The angle of the tip outward is 5°. The matching pieces for the first main wedge are all uniformly thick thin pieces with a thickness of 0.3 mm, with a length of 17 mm and a height of 10 mm. The second main wedge is a wedge-shaped device that is wide at the top and narrow at the bottom, including a forming surface (4) and a supporting surface (3), with a length of 15 mm and a height of 10 mm. The angle of the tip outward is 5°. The matching pieces for the second main wedge are all uniformly thick thin pieces with a thickness of 0.3 mm, with a length of 15 mm and a height of 10 mm.

2. The disposable tooth preparation proximal surface shaping device according to claim 1, characterized in that: The main wedge and the matching piece both have frosted surfaces (1).

3. The disposable tooth preparation proximal surface shaping device according to claim 1, characterized in that: The main wedge and the matching piece are both rounded at the corners (2).

4. The disposable tooth preparation proximal surface shaping device according to claim 1, characterized in that: The main wedge and the matching sheet are both made of polyester.

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