A double-sided molding sheet for adjacent tooth proximal shaping
By designing a double-C structure for the double-sided molding sheet, the problem of needing two placements and adjustments in existing technologies is solved, enabling simultaneous filling of adjacent teeth and improving treatment efficiency and filling effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 徐州市口腔医院
- Filing Date
- 2025-05-07
- Publication Date
- 2026-06-23
Smart Images

Figure CN224387561U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of oral medical device technology, specifically to a double-sided molding sheet that can be used for molding the adjacent surfaces of teeth. Background Technology
[0002] A double-sided molding sheet is a tool used to repair cavities on the proximal surfaces of teeth, especially suitable for the restoration and treatment of anterior and posterior teeth, such as the repair of proximal caries, filling of interdental spaces, and the isolation and positioning of restorations. Molding sheets are typically made of high-strength polymers or metals, possessing good corrosion resistance and wear resistance, and can be shaped and adjusted according to the specific morphology of the patient's teeth.
[0003] During treatment, a molded piece is placed in the interdental space and fixed with an interproximal wedge to ensure a tight fit. When two adjacent teeth need to be filled, it is generally necessary to fix one molded piece first, fill one tooth, and after the filling is completed, adjust the direction of the molded piece before filling the other adjacent tooth.
[0004] The above method not only requires two placements of the molding piece, prolonging the treatment time, but also increases patient discomfort when installing the molding piece and interproximal wedge on the proximal surface of another tooth after filling one adjacent tooth. The placement of the molding piece and interproximal wedge is difficult and may require repeated adjustments. If two sets of molding pieces are used at the same time, the fixed thickness in the space between adjacent teeth will be increased, thereby expanding the space after filling. This makes it difficult to accurately control the filling range, resulting in an excessively large space or an unsatisfactory filling shape. Utility Model Content
[0005] The purpose of this invention is to provide a double-sided molding sheet that can be used for molding the adjacent surfaces of adjacent teeth, so as to solve the technical problem that the molding sheet in the prior art is not conducive to the simultaneous filling of adjacent teeth.
[0006] To solve the above-mentioned technical problems, this utility model specifically provides the following technical solution:
[0007] A double-sided molding sheet for molding adjacent surfaces of teeth includes a separating end, on which two molding ends are provided. Each molding end is composed of two arc-shaped pieces, which are symmetrically arranged on the separating end to form a U-shaped opening.
[0008] The U-shaped openings of the two sets of forming ends face outwards and form a double C structure with the separating end.
[0009] In a preferred embodiment of this utility model, the thickness of the separating end is the same as the thickness of the forming end, and both sides of the separating end are provided with arc surfaces.
[0010] The curvature of the arc surface matches the curvature of the arc-shaped piece, and the surface of the arc surface is smooth.
[0011] As a preferred embodiment of this utility model, the two sides of the arc-shaped piece are respectively provided with a facing surface and a back surface, the surface of the facing surface is a glossy surface, and the surface of the back surface is a frosted surface.
[0012] As a preferred embodiment of this utility model, a protrusion is provided on one side of the dividing end. The protrusion has an arc-shaped structure, and the two sides of the protrusion are connected to the forming end to form an integrated structure.
[0013] As a preferred embodiment of the present invention, a multi-purpose hole is formed on at least one of the arc-shaped pieces, and the multi-purpose hole is located at one end of the arc-shaped piece away from the separating end.
[0014] Compared with the prior art, this utility model has the following advantages:
[0015] This invention employs an integrated structure to form a double-sided molding sheet capable of double-sided filling. The molding sheet has double C-shaped ends facing the adjacent tooth surfaces, which facilitates simultaneous filling and repair of both adjacent tooth surfaces. This reduces the need for repeated position adjustments by fixing the filling in one go. The integrated structure can reduce the thickness within the gap between adjacent teeth, thus facilitating more accurate control of the filling range and improving the filling and repair effect by reducing the gap between adjacent teeth during treatment. Attached Figure Description
[0016] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.
[0017] Figure 1 A top view of the overall structure is provided for the embodiments of this utility model;
[0018] Figure 2 A schematic diagram of the overall front section structure is provided for the embodiments of this utility model;
[0019] Figure 3 A schematic diagram of a single-sided flat structure is provided for an embodiment of this utility model.
[0020] The labels in the diagram represent the following:
[0021] 10 - Separating end; 20 - Forming end;
[0022] 11-Curved surface; 12-Protrusion;
[0023] 21-U-shaped opening; 22-arc-shaped piece; 23-multi-purpose hole; 221-face; 222-back side. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] like Figure 1 and Figure 2 As shown, this utility model provides a double-sided molding sheet that can be used for molding adjacent teeth proximal surfaces, including a separating end 10, on which two molding ends 20 are provided. The molding ends 20 are composed of two arc-shaped pieces 22, which are symmetrically arranged on the separating end 10 and form a U-shaped opening 21.
[0026] The U-shaped openings 21 of the two forming ends 20 face outwards and form a double C structure with the separating end 10.
[0027] This invention employs an integrated structure to form a double-sided molding sheet capable of double-sided filling. The molding sheet has double C-shaped ends facing the adjacent tooth surfaces, which facilitates simultaneous filling and repair of both adjacent tooth surfaces. This reduces the need for repeated position adjustments by fixing the filling in one go. The integrated structure can reduce the thickness within the gap between adjacent teeth, thus facilitating more accurate control of the filling range and improving the filling and repair effect by reducing the gap between adjacent teeth during treatment.
[0028] By providing molding ends 20 on both sides of a dividing end 10, it is convenient to fix the dividing end 10 in the interdental space. The two molding ends 20 are fixed to the outside of adjacent teeth respectively. They are connected to the outside of the teeth through the U-shaped opening 21, which facilitates the filling and repair of the adjacent teeth within the range of the U-shaped opening 21. This greatly shortens the time required to fix two molding pieces at the same time, reduces the possibility of repeated position adjustments, and makes it easier to fix adjacent teeth at one time, thus improving treatment efficiency.
[0029] like Figure 1 and Figure 2 As shown, the thickness of the dividing end 10 is the same as the thickness of the forming end 20, and arc surfaces 11 are provided on both sides of the dividing end 10.
[0030] The curvature of the curved surface 11 matches the curvature of the curved piece 22, and the surface of the curved surface 11 is smooth.
[0031] The thickness of the separating end 10 is the same as that of the molding end 20, which reduces the combined thickness when two molding pieces are stacked and fixed in the traditional way. This reduces the area occupied by the separating end 10 in the interdental space, expands the filling range, and makes it easier for medical staff to control the filling degree of the interdental space more accurately, reduce the gap distance, and thus achieve a better filling effect.
[0032] The arc surface 11 and the arc-shaped piece 22 are integrally molded structures that can adapt to the shape of the tooth surface. The separating end 10 and the molding end 20 are made of high-strength polymer or metal, which have good corrosion resistance and wear resistance, and can be shaped and adjusted according to the specific shape of the patient's teeth.
[0033] The separating end 10 and the forming end 20 are connected at the middle contact position. A certain gap is reserved at the upper and lower ends of the separating end 10 so that the two forming ends 20 are not completely fitted to the side connected to the separating end 10. After the forming piece is placed in the adjacent tooth gap, the adjacent wedge can be placed through the gap reserved at the upper and lower ends of the separating end 10, which facilitates the fixing of the forming piece.
[0034] like Figure 1 As shown, the two sides of the arc-shaped piece 22 are respectively provided with a facing 221 and a back surface 222. The surface of the facing 221 is smooth, and the surface of the back surface 222 is frosted.
[0035] Both the curved surface 11 and the veneer 221 are attached to one side of the tooth surface. The smooth surface helps to reduce the friction on the tooth surface during fixation. At the same time, it helps to improve the smoothness of the filling surface when filling material is used, and it is easier to separate the filling material from the molded piece when it is removed, which is more conducive to filling and shaping.
[0036] By using a frosted surface on the back side 222 of the arc-shaped piece 22, the friction on the outer side of the forming piece is increased, which helps to increase the friction between the tool and the forming piece when clamping, enhances the anti-slip effect, and makes it easier for the operator to clamp and place. When placed in the tooth gap, it is less likely to be resisted by external forces and slide between the tool, which is more conducive to accurate placement.
[0037] like Figure 3 As shown, a protrusion 12 is provided on one side of the dividing end 10. The protrusion 12 has an arc-shaped structure, and the two sides of the protrusion 12 are connected to the forming end 20 to form an integrated structure.
[0038] By having one side of the protrusion 12 contact the gingival side, it is easier to accurately place the septum 10, thereby helping with positioning. The height of the protrusion 12 can be slightly higher than one side of the septum 10, making it a supragingival shaping piece suitable for supragingival placement under normal circumstances.
[0039] When a patient has a subgingival defect, a protrusion 12 with a certain protrusion height can be used as a subgingival molding piece, which is more suitable for cases with subgingival defects.
[0040] It makes full use of the point contact characteristics of teeth, effectively and quickly shaping the tooth structure during restoration, without the need for repeated movement.
[0041] like Figure 3 As shown, a multi-purpose hole 23 is provided on at least one arc-shaped piece 22, and the multi-purpose hole 23 is located at the end of the arc-shaped piece 22 away from the separating end 10.
[0042] The multi-purpose hole 23 facilitates its use with other instruments, and the reserved operating port expands the applicability of the molding piece. Furthermore, the position of the multi-purpose hole 23 does not affect the filling treatment of adjacent tooth gaps, and it further enhances the friction of the surface of the curved piece 22, making it easier for medical staff to use tools for grasping and adjustment.
[0043] The above embodiments are merely exemplary embodiments of this application and are not intended to limit this application. The scope of protection of this application is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this application within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this application.
Claims
1. A double-sided molding sheet which can be used for proximal shaping of adjacent teeth, characterized by, Includes a dividing end (10), on which two forming ends (20) are provided. The forming ends (20) are composed of two arc-shaped pieces (22), which are symmetrically arranged on the dividing end (10) to form a U-shaped opening (21). The U-shaped openings (21) of the two sets of forming ends (20) face outward and form a double C structure with the separating end (10); The thickness of the dividing end (10) is the same as the thickness of the forming end (20), and both sides of the dividing end (10) are provided with arc surfaces (11). The curvature of the arc surface (11) matches the curvature of the arc-shaped piece (22), and the surface of the arc surface (11) is smooth.
2. A double-sided molding sheet for molding adjacent surfaces of teeth according to claim 1, characterized in that, The arc-shaped piece (22) has a facing (221) and a back surface (222) on both sides respectively. The surface of the facing (221) is smooth, and the surface of the back surface (222) is frosted.
3. A double-sided molding sheet for molding adjacent surfaces of teeth according to claim 1, characterized in that, A protrusion (12) is provided on one side of the dividing end (10). The protrusion (12) has an arc-shaped structure, and the two sides of the protrusion (12) are connected to the forming end (20) to form an integrated structure.
4. A double-sided molding sheet for molding adjacent surfaces of teeth according to claim 1, characterized in that, A multi-purpose hole (23) is provided on at least one of the arc-shaped pieces (22), the multi-purpose hole (23) being located at one end of the arc-shaped piece (22) away from the separating end (10).