A molded sheet for resin filling of the buccal and lingual surfaces

By designing a molded patch for resin filling of the buccal and lingual surfaces, combined with a fixing wing and adjustment mechanism, the problem of traditional bean-shaped molded patches being difficult to fix and adjust on the buccal and lingual sides has been solved, achieving stable fixation and individualized positional adaptation, thus improving the restoration effect.

CN224441484UActive Publication Date: 2026-07-03CHINA AEROSPACE SCI & IND GRP 731 HOSPITAL

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA AEROSPACE SCI & IND GRP 731 HOSPITAL
Filing Date
2025-07-14
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Traditional soybean-shaped tablets are difficult to fix in place and difficult to adjust the position on the buccal and lingual sides, making them inconvenient to use in the repair of buccal and lingual defects or caries.

Method used

A molded piece for buccal and lingual resin filling was designed, comprising a fixing wing, an auxiliary retention ring, and an adjustment mechanism. The fixing wing provides initial fixation to adjacent teeth, the auxiliary retention ring enhances stability, and the adjustment mechanism, such as the cooperation of a support rod and a threaded groove, enables fine-tuning of the molded piece's position and adaptation to adjacent teeth with different height differences.

Benefits of technology

It achieves stable fixation and position adjustment on the buccal and lingual sides, adapting to the height differences between different patients and between different teeth of the same patient, thus improving the success rate of restoration and the physiological conformity of resin filling.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a molded sheet for buccal and lingual resin filling, comprising a molded sheet body located on the intermediate tooth. A fixing wing is fixedly disposed on one side of the molded sheet body, and the fixing wing is inserted between the left adjacent tooth and the intermediate tooth. An auxiliary retention ring is clamped and installed on the left adjacent tooth. A first retention protrusion is fixedly disposed at one end of the auxiliary retention ring, and a second retention protrusion is fixedly disposed at the other end of the auxiliary retention ring. The first retention protrusion abuts against the upper buccal side of the fixing wing, and the second retention protrusion abuts against the lower lingual palatal side of the fixing wing. An adjustment mechanism is fixedly disposed on the top of the other side of the molded sheet body. This utility model solves the problem that traditional bean-shaped molded sheets are only suitable for mesiodistal surface filling and are difficult to use for buccal and lingual defects or caries repair.
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Description

Technical Field

[0001] This utility model relates to the field of oral medical technology, and in particular to a molded sheet for resin filling of the buccal and lingual surfaces. Background Technology

[0002] Dental caries is a common oral disease, often affecting the proximal and buccal / lingual surfaces of teeth. Restoring the convexity of the proximal surfaces is crucial in caries restoration, effectively preventing food impaction and overhangs. Currently, there are bean-shaped filling sheets on the market for mesial and distal proximal surfaces. Their curved design effectively mimics the natural bean-shaped convexity of the proximal surfaces, allowing the filling resin to form a more physiological shape and contact point, significantly improving the success rate of restorations.

[0003] However, traditional molded sheets are only suitable for molding the mesial and distal surfaces, are not easy to fix, and are difficult to adjust the position of the buccal and lingual surfaces. Therefore, they are inconvenient to use for repairing buccal and lingual defects or caries. Therefore, this invention proposes a molded sheet for resin filling of the buccal and lingual surfaces to solve the above problems. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a molded sheet for resin filling of the buccal and lingual surfaces.

[0005] To achieve the above objectives, this utility model provides a molded sheet for buccal and lingual resin filling, comprising a molded sheet body located on the intermediate tooth. A fixing wing is fixedly disposed on one side of the molded sheet body, and the fixing wing is inserted between the left adjacent tooth and the intermediate tooth. An auxiliary retention ring is clamped and installed on the left adjacent tooth. A first retention protrusion is fixedly disposed at one end of the auxiliary retention ring, and a second retention protrusion is fixedly disposed at the other end of the auxiliary retention ring. The first retention protrusion abuts against the upper buccal side of the fixing wing, and the second retention protrusion abuts against the lower lingual palatal side of the fixing wing. An adjustment mechanism is fixedly disposed on the top of the other side of the molded sheet body. The adjustment mechanism is used to adjust the position of the molded sheet body. After the position of the molded sheet body is adjusted to the correct position, resin filling is performed on the filling area of ​​the intermediate tooth.

[0006] Furthermore, the adjustment mechanism includes a support rod, one end of which is fixedly disposed on the top of the molded sheet body, and the other end of which is fitted with an adjacent tooth support body. The adjacent tooth support body is placed on the right adjacent tooth, and the position of the molded sheet body is adjusted between the adjacent tooth support body and the right adjacent tooth by placing a rubber sheet.

[0007] Furthermore, the bottom of the support rod is longitudinally provided with a threaded groove, and a threaded rod is threadedly inserted into the threaded groove. An adjacent tooth support body is fixedly provided at the bottom end of the threaded rod, and the installation position of the threaded rod can be fixed.

[0008] Furthermore, a positioning screw is provided on the lower front end of the support rod, the positioning screw is threadedly engaged with the support rod, and the threaded rod is fixed by tightening the positioning screw.

[0009] Furthermore, the molded sheet body is bean-shaped, and the outer end of the positioning screw has a locking hole, which is square in shape.

[0010] Furthermore, the molding sheet body, the fixed wing piece, and the auxiliary retaining ring are all made of titanium alloy, and the support rod, the adjacent tooth support body, the threaded rod, the positioning screw, and the adjacent tooth support body are all made of stainless steel. The internal structure of the first retaining protrusion and the second fixing protrusion is the same.

[0011] Furthermore, the second fixing protrusion includes an inner base layer, a reinforcing layer is fixedly disposed on the outer side of the inner base layer, an outer base layer is fixedly disposed on the outer side of the reinforcing layer, and an anti-slip layer is fixedly disposed on the outer side of the outer base layer. Both the inner base layer and the outer base layer are made of stainless steel, and the reinforcing layer is made of titanium alloy.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model involves inserting a fixing wing on one side of the molded piece body between the left adjacent tooth and the middle tooth, using the fixing wing to provide initial fixation for the molded piece. An auxiliary retention ring is then installed on the left adjacent tooth. One end of the auxiliary retention ring is provided with a first retention protrusion, and the other end is provided with a second retention protrusion. The first retention protrusion abuts against the upper buccal side of the fixing wing, and the second retention protrusion abuts against the lower lingual palatal side of the fixing wing, further enhancing the stability of the molded piece.

[0014] 2. This utility model adjusts the position of the molded sheet body on the buccal and lingual sides by placing the adjacent tooth support body on the right adjacent tooth and placing rubber sheets of different thicknesses between the adjacent tooth support body and the right adjacent tooth. A threaded groove is opened longitudinally at the bottom of the support rod, and a threaded rod is threaded into the threaded groove. The depth of the threaded rod inserted into the threaded groove is adjusted, and the positioning screw is tightened to hold the threaded rod against it, thereby adapting to adjacent teeth with different height differences and realizing the adjustment of the position of the molded sheet body.

[0015] 3. The first fixing protrusion and the second fixing protrusion of this utility model have the same internal structure, both including an inner base layer, a reinforcing layer, an outer base layer and an anti-slip layer. The reinforcing layer is made of titanium alloy to further enhance the structural strength, and the anti-slip layer increases the friction between the second fixing protrusion and the fixing wing, further enhancing the fixing effect of the second fixing protrusion on the fixing wing. Attached Figure Description

[0016] To more clearly illustrate the solutions in this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a top view schematic diagram of Embodiment 1 provided by this utility model;

[0018] Figure 2 This is a top view schematic diagram of Embodiment 2 provided by this utility model;

[0019] Figure 3 This is a schematic diagram of the second fixed convex structure provided by this utility model;

[0020] Figure 4 This is a sectional view of the support rod provided by this utility model;

[0021] Figure 5 This is an enlarged schematic diagram of part A provided by this utility model;

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Fixed wing; 2. Molded sheet body; 3. Support rod; 4. Auxiliary retaining ring; 5. Left adjacent tooth; 6. First retaining protrusion; 7. Right adjacent tooth; 8. Adjacent tooth support; 9. Middle tooth; 10. Second fixing protrusion; 101. Anti-slip layer; 102. Outer base layer; 103. Reinforcing layer; 104. Inner base layer; 11. Filling area; 12. Rubber sheet; 13. Positioning screw; 14. Threaded groove; 15. Threaded rod. Detailed Implementation

[0024] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings, so that the advantages and features of this utility model can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] The terms "comprising" and "having," and any variations thereof, used in the specification, claims, and accompanying drawings of this utility model are intended to cover non-exclusive inclusion. The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this utility model are used to distinguish different objects, not to describe a specific order.

[0026] Example 1

[0027] Please see Figure 1 , Figure 3 A molded sheet for buccal and lingual resin filling includes a molded sheet body 2, which is bean-shaped to better simulate the convexity of the natural proximal surfaces of teeth, making the filled resin form a more physiological shape and contact point. The molded sheet body 2 is located on the intermediate tooth 9. A fixing wing 1 is fixedly provided on one side of the molded sheet body 2. The fixing wing 1 is inserted and installed between the left adjacent tooth 5 and the intermediate tooth 9, and the fixing wing 1 provides initial fixation for the molded sheet 2. An auxiliary retention ring 4 is installed on the left adjacent tooth 5. A first retention protrusion 6 is fixedly provided at one end of the auxiliary retention ring 4, and a second retention protrusion 10 is fixedly provided at the other end of the auxiliary retention ring 4. The first retention protrusion 6 abuts against the upper buccal side of the fixing wing 1, and the second retention protrusion 10 abuts against the lower lingual palatal side of the fixing wing 1. The setting of the auxiliary retention ring 4 further enhances the stability of the molded sheet 2.

[0028] An adjustment mechanism is fixedly installed on the top of the other side of the molded sheet body 2. The adjustment mechanism is used to adjust the position of the molded sheet body 2. The adjustment mechanism includes a support rod 3. One end of the support rod 3 is fixedly installed on the top of the molded sheet body 2, and the other end of the support rod 3 is equipped with an adjacent tooth support 8. The adjacent tooth support 8 is placed on the right adjacent tooth 7. The position of the molded sheet body 2 on the buccal and lingual sides is adjusted by placing rubber sheets 12 of different thicknesses between the adjacent tooth support 8 and the right adjacent tooth 7. After the position of the molded sheet body 2 is adjusted, the filling area 11 of the intermediate tooth 9 is filled with resin. Specifically, the adjacent tooth support 8 is placed on the occlusal surface or proximal surface of the right adjacent tooth 7 as a support point. The rubber sheet 12 is placed between the adjacent tooth support 8 and the right adjacent tooth 7. By changing the rubber sheet 12 of different thicknesses, the vertical distance between the adjacent tooth support 8 and the right adjacent tooth 7 is changed. Since the support rod 3 connects the adjacent tooth support 8 and the molded sheet body 2, the change in the height of the adjacent tooth support 8 will cause the molded sheet body 2 to move slightly in the buccal and lingual direction, thereby realizing the fine adjustment of the position of the molded sheet body 2.

[0029] As an improvement to the above technical solution, the molding body 2, the fixed wing 1, and the auxiliary retaining ring 4 are all made of titanium alloy, which has good biocompatibility and strength. The support rod 3, the adjacent tooth support body 8, the threaded rod 15, the positioning screw 13, and the adjacent tooth support body 8 are all made of stainless steel to ensure the stability and durability of the structure. The internal structure of the first retaining protrusion 6 and the second fixing protrusion 10 is the same. The second fixing protrusion 10 includes an inner base layer 104. A reinforcing layer 103 is fixedly provided on the outside of the inner base layer 104. The reinforcing layer 103 is made of titanium alloy to further enhance the structural strength. An outer base layer 102 is fixedly provided on the outside of the reinforcing layer 103. Both the inner base layer 104 and the outer base layer 102 are made of stainless steel. An anti-slip layer 101 is fixedly provided on the outside of the outer base layer 102. The anti-slip layer 101 increases the friction between the second fixing protrusion 10 and the fixed wing 1, further enhancing the fixing effect of the second fixing protrusion 10 on the fixed wing 1.

[0030] Example 2

[0031] Please see Figure 2 , Figure 4 and Figure 5 In another embodiment, the adjustment mechanism takes a different form. Specifically, the bottom of the support rod 3 has a longitudinally threaded groove 14, and a threaded rod 15 is threadedly inserted into the groove 14. The bottom end of the threaded rod 15 is fixedly provided with an adjacent tooth support body 8. The installation position of the threaded rod 15 can be fixed. The lower end of the support rod 3 is provided with a positioning screw 13, which is threadedly engaged with the support rod 3. The threaded rod 15 is fixed by tightening the positioning screw 13. By adjusting the depth of the threaded rod 15 inserted into the threaded groove 14 and tightening the positioning screw 13 to hold the threaded rod 15 in place, the mechanism can adapt to adjacent teeth with different height differences, thereby adjusting the position of the molded piece body 2. Specifically, different patients have different tooth height differences, and even different teeth of the same patient have different height differences. According to the different tooth height differences of the patients, the length of the support structure can be flexibly adjusted by adjusting the depth of the threaded rod 15 inserted into the threaded groove 14 to adapt to individual tooth height differences.

[0032] The outer end of the positioning screw 13 is provided with a retaining hole, which is square in shape. A tool is inserted into the retaining hole to easily tighten or loosen the positioning screw 13.

[0033] The working principle and usage of this utility model:

[0034] In use, the fixing wing 1 on one side of the molding piece body 2 is inserted and installed between the left adjacent tooth 5 and the middle tooth 9. The fixing wing 1 provides initial fixation for the molding piece. An auxiliary retention ring 4 is installed on the left adjacent tooth 5. One end of the auxiliary retention ring 4 is provided with a first retention protrusion 6, and the other end is provided with a second retention protrusion 10. The first retention protrusion 6 abuts against the upper buccal side of the fixing wing 1, and the second retention protrusion 10 abuts against the lower lingual palatal side of the fixing wing 1, further enhancing the stability of the molding piece.

[0035] The adjacent tooth support 8 is placed on the right adjacent tooth 7. The position of the molding sheet body 2 on the buccal and lingual sides is adjusted by placing rubber sheets 12 of different thicknesses between the adjacent tooth support 8 and the right adjacent tooth 7. A threaded groove 14 is longitudinally opened at the bottom of the support rod 3, and a threaded rod 15 is threaded into the threaded groove 14. The depth of the threaded rod 15 inserted into the threaded groove 14 is adjusted, and the positioning screw 13 is tightened to hold the threaded rod 15, thereby adapting to adjacent teeth with different height differences and realizing the adjustment of the position of the molding sheet body 2. After the position of the molding sheet body 2 is adjusted, the filling area 11 of the intermediate tooth 9 is filled with resin. The molding sheet body 2 is shaped like a bean, which can better simulate the convexity of the natural proximal surface of the tooth, so that the resin after filling forms a shape and proximal point that is more in line with physiology.

[0036] This patented molding piece is mainly used in dental clinics for resin filling operations when repairing caries or defects on the buccal and lingual surfaces of teeth. It is especially suitable for buccal and lingual restoration scenarios that traditional molded pieces cannot handle. Compared with existing technologies, this molding piece achieves more stable positioning through the cooperation of fixed wings and auxiliary retention rings. At the same time, the adjustment mechanism can flexibly adjust the position of the molding piece according to the height difference between adjacent teeth to adapt to adjacent teeth with different height differences.

[0037] The above description is only used to illustrate the technical solution of this utility model, and is not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Any equivalent structural or procedural transformations made using the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A molding sheet for buccal lingual resin filling, characterized by: The device includes a molding body (2) located on the intermediate tooth (9). A fixing wing (1) is fixedly provided on one side of the molding body (2). The fixing wing (1) is inserted between the left adjacent tooth (5) and the intermediate tooth (9). An auxiliary retention ring (4) is installed on the left adjacent tooth (5). A first retention protrusion (6) is fixedly provided at one end of the auxiliary retention ring (4). A second retention protrusion (10) is fixedly provided at the other end of the auxiliary retention ring (4). The first retention protrusion (6) abuts against the upper buccal side of the fixing wing (1). The second retention protrusion (10) abuts against the lower lingual palatal side of the fixing wing (1). An adjustment mechanism is fixedly provided on the top of the other side of the molding body (2). The adjustment mechanism is used to adjust the position of the molding body (2). After the position of the molding body (2) is adjusted to the correct position, the filling area (11) of the intermediate tooth (9) is filled with resin.

2. A molding sheet for buccal lingual resin filling according to claim 1, wherein: The adjustment mechanism includes a support rod (3), one end of which is fixedly mounted on the top of the molding sheet body (2), and the other end of which is fitted with a tooth support (8). The tooth support (8) is placed on the right adjacent tooth (7), and the position of the molding sheet body (2) is adjusted between the tooth support (8) and the right adjacent tooth (7) by placing a rubber sheet (12).

3. A molding sheet for buccal lingual resin filling according to claim 2, wherein: The bottom of the support rod (3) has a longitudinally threaded groove (14), and a threaded rod (15) is threadedly inserted into the threaded groove (14). The bottom end of the threaded rod (15) is fixedly provided with a toothed support body (8), and the installation position of the threaded rod (15) can be fixed.

4. A molding sheet for buccal lingual resin filling according to claim 3, wherein: The lower end of the support rod (3) is provided with a positioning screw (13), which is threadedly engaged with the support rod (3). The threaded rod (15) is fixed by tightening the positioning screw (13).

5. A molding sheet for buccal lingual resin filling according to claim 4, wherein: The molded sheet body (2) is shaped like a bean, and the outer end of the positioning screw (13) is provided with a locking hole, which is square in shape.

6. A molded sheet for resin filling of the buccal and lingual surfaces according to claim 4, characterized in that: The molding sheet body (2), the fixed wing (1) and the auxiliary retaining ring (4) are all made of titanium alloy. The support rod (3), the adjacent tooth support body (8), the threaded rod (15), the positioning screw (13) and the adjacent tooth support body (8) are all made of stainless steel. The internal structure of the first retaining protrusion (6) and the second fixing protrusion (10) is the same.

7. A molding sheet for buccal lingual resin filling according to claim 1, wherein: The second fixed protrusion (10) includes an inner base layer (104), a reinforcing layer (103) is fixedly disposed on the outer side of the inner base layer (104), an outer base layer (102) is fixedly disposed on the outer side of the reinforcing layer (103), and an anti-slip layer (101) is fixedly disposed on the outer side of the outer base layer (102). The inner base layer (104) and the outer base layer (102) are both made of stainless steel, and the reinforcing layer (103) is made of titanium alloy.