Duplex type adjacent surface forming sheet system

Abstract

The invention discloses a duplex adjacent surface forming sheet system, which belongs to the field of oral cavity medical instruments and comprises a first forming sheet and a second forming sheet, the fixing ring is used for clamping the two sides between the first forming piece and the second forming piece which are attached to ensure that the first forming piece and the second forming piece are attached to teeth; a hollow groove is formed in the middle of the second forming sheet, and a positioning connecting structure connected with the second forming sheet is arranged on the first forming sheet; the positioning connecting structure comprises mounting holes which are symmetrically formed in the two sides of the middle of the first forming piece and matched with the two ends of the second forming piece. By means of the design, the two forming pieces can be overlaid at the same time, and perfect wrapping of the adjacent faces of the two teeth and accurate recovery of the contact are achieved. In addition, the gap between the two adjacent faces can be integrally planned through the mode, and many defects caused by respective filling in a traditional mode are overcome, for example, the problems that filling of the other adjacent face hole is hindered due to the fact that one filling body is too large, and food is impacted due to deviation of a contact area are solved.

Description

Technical Field

[0001] This application relates to the technical field of oral medical devices, and specifically to a dual-sided proximal matrix system. Background Art

[0002] Proximal caries, as a very common type of caries clinically, refers to caries occurring at the adjacent parts of two teeth. Because it is relatively hidden in the new development stage, patients usually have difficulty detecting it. Clinical studies have shown that food impaction is the main cause of proximal caries. Food residues and bacteria are frequently impacted between the tooth gaps, and after a period of time, caries will gradually form on both sides of this area.

[0003] During the repair process of proximal caries lesions, the commonly used clinical method is to use a matrix to block the adjacent tooth surfaces, thereby separating the area to be filled from the adjacent teeth to avoid the two teeth being connected together during tooth filling. To ensure the fixation of the matrix to the tooth position, a matrix retainer is currently mostly used to firmly fix the matrix on the tooth.

[0004] However, when facing the filling of proximal cavities of two adjacent teeth, traditional proximal matrices expose many limitations. On the one hand, traditional proximal matrices cannot meet the filling requirements of two proximal cavities simultaneously. It is often necessary to carry out filling work around the adjacent surfaces of their respective teeth in sequence, which means applying the matrix twice and performing two filling operations, not only time-consuming but also labor-intensive. On the other hand, if two traditional proximal matrices are tried to be stacked to achieve simultaneous filling, it will inevitably increase the thickness of the proximal gap, resulting in an overly large proximal filling gap. In addition, when forming the proximal cavities of two adjacent teeth separately, it is difficult to overall plan the gap between the two proximal cavities before filling, and it is very easy to have a situation where one filling body is too large, which in turn hinders the filling of the other proximal cavity. At the same time, it may also cause contact area deviation, greatly increasing the risk of postoperative food impaction. Moreover, when filling separately, it is easier to generate flash, which not only reduces the filling effect but also prolongs the time required for finishing.

[0005] Therefore, this application provides a dual-sided proximal matrix system to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a dual-sided proximal matrix system to solve the problems such as cumbersome operation and poor filling effect of traditional proximal matrices during the filling of proximal cavities of adjacent teeth, and to achieve simultaneous, efficient, and precise filling of two proximal cavities, improve the quality of tooth filling, and reduce patient discomfort.

[0007] To achieve the above object, the present application provides the following technical solution: A double - type proximal - forming strip system, including a first forming strip and a second forming strip for separating the area to be filled from adjacent teeth; further including a retaining ring for clamping both sides between the attached first forming strip and the second forming strip to ensure that the first forming strip and the second forming strip are in contact with the teeth. To reduce the discomfort caused to adjacent teeth by the thickness of the contact between the first forming strip and the second forming strip: A hollow groove is provided in the middle of the second forming strip, for forming a single - piece contact with adjacent teeth between the middle parts of the second forming strip and the first forming strip, reducing patient discomfort. To facilitate the installation of the second forming strip on the first forming strip: A positioning connection structure connected to the second forming strip is provided on the first forming strip, for enabling the free end of the second forming strip to form a connection at a preset position on the first forming strip; the positioning connection structure includes mounting holes symmetrically opened on both sides of the middle part of the first forming strip and adapted to both ends of the second forming strip. This facilitates the installation operation of the second forming strip on the first forming strip, and at the same time, this shape is conducive to subsequent wrapping of two adjacent teeth. Moreover, this design can stack two forming strips simultaneously, achieving a perfect wrap of the adjacent surfaces of two teeth and an accurate restoration of the contact point. In addition, in this way, the gaps between the two adjacent surfaces can be overall planned, avoiding many drawbacks in the traditional separate filling method, such as an oversized filling body hindering the filling of another proximal cavity, food impaction caused by deviation of the contact area, etc.

[0008] Preferably, to ensure the stability of the connection between the second forming strip and the mounting hole: The mounting hole is elliptical in shape, and the inner wall shape of the mounting hole is the same as the outer wall shapes of both sides of the second forming strip and they fit each other. This greatly improves the stability of the connection between the second forming strip and the mounting hole, thus ensuring the reliability of the entire forming strip system during use.

[0009] Preferably, to facilitate the second forming strip to pass through the mounting hole: The ends of the first forming strip and the second forming strip are both in a convex arc shape. This facilitates the second forming strip to pass through the mounting hole and improves the operation efficiency.

[0010] Preferably, to improve the effect of the first forming strip and the second forming strip in wrapping adjacent teeth: The middle tops of the first forming strip and the second forming strip are both in a convex arc shape. This significantly improves the effect of the first forming strip and the second forming strip in wrapping adjacent teeth, enhances the sealing of the adjacent surface, and is beneficial to subsequent tooth filling operations.

[0011] Preferably, to make the first forming strip and the second forming strip fit the teeth better: The middle bottoms of the first forming strip and the second forming strip are both in a convex arc shape. This improves the fit degree between the forming strip and the teeth, reduces the gaps, and helps to improve the quality of tooth filling.

[0012] Preferably, one side of the first forming piece and the second forming piece facing the area to be filled is a concave surface that is recessed away from the area to be filled, and one side of the first forming piece and the second forming piece facing the adjacent tooth is a convex surface that protrudes towards the adjacent tooth. This not only facilitates the filling of the filling material but also ensures a tight fit with the adjacent tooth, improving the accuracy and effect of tooth filling.

[0013] Preferably, for the convenience of connecting with the retainer: Two connection holes for placing the wing tips of the retainer are provided on both sides of the first forming piece and the second forming piece. This facilitates the connection operation between the forming piece and the retainer and provides convenience for the fixation of the entire forming piece system on the tooth.

[0014] Preferably, the first forming piece, the second forming piece, and the retaining ring are all made of medical stainless steel material. This ensures the durability and safety of the forming piece system and can be used stably in oral treatment for a long time.

[0015] Preferably, to ensure the tightness of the first forming piece and the second forming piece fitting with the tooth: Wedges are provided at both opposite ends of the retaining ring, and the angles between the wedges and the first forming piece and the second forming piece are in contact. This ensures the tightness of the first forming piece and the second forming piece fitting with the tooth and prevents the forming piece from shifting during tooth filling, affecting the tooth filling effect.

[0016] Preferably, to improve the stability of the wedge clamping the first forming piece and the second forming piece: The parts of the wedge in contact with the first forming piece and the second forming piece are triangular. This improves the stability of the wedge clamping the first forming piece and the second forming piece and further ensures the reliability of the forming piece system during use.

[0017] When installing this application, the two ends of the second forming piece are respectively passed through the two installation holes on the first forming piece. At this time, the first forming piece and the second forming piece form a shape similar to "X". The installation holes are used to position the second forming piece so that it can be accurately installed at the preset position on the first forming piece. This facilitates the installation operation of the second forming piece on the first forming piece, and this shape is conducive to the subsequent wrapping of the two adjacent teeth. Moreover, this design can stack two forming pieces at the same time to achieve a perfect wrap of the adjacent surfaces of the two teeth and an accurate restoration of the contact point. In addition, through this method, the gaps between the two adjacent surfaces can be overall planned, avoiding many drawbacks in the traditional method of separate filling, such as an oversized filling body hindering the filling of the other adjacent surface cavity, problems such as food impaction caused by deviation of the contact area, etc.

[0018] The double - type adjacent - surface forming piece system of the present invention can fill the adjacent - surface cavities of two adjacent teeth simultaneously, greatly shortening the treatment time and improving the treatment efficiency.

[0019] Through a unique structural design, perfect wrapping of the adjacent surfaces of two teeth and precise restoration of the contact points are achieved, effectively avoiding problems such as uneven filling body size, contact area deviation, and food impaction in the traditional method, improving the quality of dental filling. It reduces the compression of the adjacent teeth by the fitting thickness of the matrix band, and reduces the discomfort of the patient during the treatment process. The design of each component optimizes the operation process, facilitates the operation of the doctor, and improves the operation efficiency. Description of the Drawings

[0020] Figure 1 It is a schematic structural diagram of a double-connected adjacent surface matrix band system; Figure 2 It is a plan view of the structure of the first matrix band; Figure 3 It is a plan view of the structure of the second matrix band; Figure 4 It is a three-dimensional view of the structure of the first matrix band.

[0021] In the figure: 1. The first matrix band; 2. The second matrix band; 21. The hollow groove; 3. The retaining ring; 31. The wedge; 4. The positioning connection structure; 41. The mounting hole; 5. The connection hole. Detailed Embodiment

[0022] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0023] This embodiment provides a double-connected adjacent surface matrix band system, as Figures 1-4 shown. This matrix band system includes a first matrix band 1 and a second matrix band 2 for separating the area to be filled from the adjacent teeth; it also includes a retaining ring 3 for clamping both sides between the fitted first matrix band 1 and the second matrix band 2 to ensure the fitting of the first matrix band 1 and the second matrix band 2 with the teeth; In order to reduce the discomfort caused by the fitting thickness between the first matrix band 1 and the second matrix band 2 to the adjacent teeth: a hollow groove 21 is opened in the middle of the second matrix band 2, which is used to form a single-piece contact with the adjacent teeth in the middle of the second matrix band 2 and the first matrix band 1, reducing the discomfort of the patient; when the first matrix band 1 and the second matrix band 2 are used in combination, this hollow groove 21 enables the middle area of the second matrix band 2 and the first matrix band 1 to contact the adjacent teeth only in a single-piece form. It effectively reduces the discomfort of the patient during the treatment process and avoids the discomfort effects such as compression on the adjacent teeth caused by the too large fitting thickness of the matrix band.

[0024] For the convenience of installing the second forming piece 2 on the first forming piece 1: A positioning and connecting structure 4 connected to the second forming piece 2 is provided on the first forming piece 1, which is used to make the free end of the second forming piece 2 form a connection at a preset position on the first forming piece 1; The positioning and connecting structure 4 includes mounting holes 41 symmetrically opened on both sides of the middle of the first forming piece 1 and adapted to the two ends of the second forming piece 2. During installation, the two ends of the second forming piece 2 are respectively passed through the two mounting holes 41 on the first forming piece 1. At this time, the first forming piece 1 and the second forming piece 2 form a shape similar to "X". The second forming piece 2 is positioned by the mounting holes 41 so that it can be accurately installed at the preset position on the first forming piece 1. This facilitates the installation operation of the second forming piece 2 on the first forming piece 1, and at the same time this shape is beneficial for subsequent wrapping of two adjacent teeth. Moreover, this design can stack two forming pieces at the same time to achieve perfect wrapping of the adjacent surfaces of two teeth and precise restoration of the contact points. In addition, in this way, the gaps between the two adjacent surfaces can be overall planned, avoiding many drawbacks in the traditional method of separate filling, such as a too large filling body hindering the filling of the other adjacent surface cavity, food impaction caused by deviation of the contact area, etc.

[0025] Just through the two mounting holes 41, the two ends of the second forming piece 2 can pass through to form a back-to-back appearance. After passing through, the first forming piece 1 and the second forming piece 2 form a shape similar to "X", which is beneficial for wrapping two adjacent teeth. This design stacks two forming pieces at the same time to form perfect wrapping of the adjacent surfaces of two teeth and restoration of the contact points. At the same time, since there is a hole at each end of one of the forming pieces, the other forming piece with a hollowed-out contact area can pass through. On the one hand, this ensures that the contact area has only the thickness of one forming piece. On the other hand, it ensures the restoration of the contact area and the embrasure, as well as the wrapping of each tooth. At the same time, the gaps between the two adjacent surfaces can be overall planned. During installation, the two ends of the second forming piece 2 are respectively passed through the two mounting holes 41 on the first forming piece 1, and then the first forming piece 1 and the second forming piece 2 are installed between the adjacent teeth, so that the middle bottom where the first forming piece 1 and the second forming piece 2 contact is located at the bottom between the adjacent teeth, and the middle top where the first forming piece 1 and the second forming piece 2 contact is located above the adjacent teeth, avoiding resistance to the adjacent teeth. The hollow grooves 21 on the first forming piece 1 and the second forming piece 2 are in contact with the middle part between the adjacent teeth to ensure the stability of the position of the forming pieces, form perfect wrapping of the adjacent surfaces of two teeth and restoration of the contact points. At the same time, the first forming piece 1 and the second forming piece 2 are in single-piece contact with the adjacent teeth, avoiding the phenomenon that the traditional stacking of two adjacent surface forming pieces increases the thickness of the adjacent surface gap, resulting in too large an adjacent surface filling gap and causing discomfort to the patient. Then, the opposite ends of the retaining ring 3 are respectively clamped on both sides where the first forming piece 1 and the second forming piece 2 are in contact by the forming piece clamp, so that the first forming piece 1 and the second forming piece 2 are respectively wrapped around the teeth.

[0026] To ensure the stability of the connection between the second forming piece 2 and the mounting hole 41: The mounting hole 41 is elliptical in shape, and the shape of the inner wall of the mounting hole 41 is consistent with the shapes of the outer walls on both sides of the second forming piece 2 and they fit tightly together. Based on this tightly fitting shape design, when the second forming piece 2 passes through the mounting hole 41, it can remain stable within the mounting hole 41 and is not prone to shaking or displacement. This greatly improves the stability of the connection between the second forming piece 2 and the mounting hole 41, thereby ensuring the reliability of the entire forming piece system during use.

[0027] To facilitate the passing of the second forming piece 2 through the mounting hole 41: The ends of the first forming piece 1 and the second forming piece 2 are both convex arc-shaped. During the insertion operation, such as when the second forming piece 2 passes through the mounting hole 41, the convex arc-shaped ends can reduce the frictional resistance between components, making the insertion action smoother. This facilitates the passing of the second forming piece 2 through the mounting hole 41 and improves the operation efficiency.

[0028] To improve the effect of the first forming piece 1 and the second forming piece 2 in surrounding adjacent teeth: The middle tops of the first forming piece 1 and the second forming piece 2 are both convex arc-shaped. When installing the forming piece between adjacent teeth, the convex arc-shaped middle tops can better fit the outer contour of the adjacent teeth and tightly wrap the top area of the adjacent teeth. This significantly improves the effect of the first forming piece 1 and the second forming piece 2 in surrounding adjacent teeth, enhances the sealing of the adjacent surface, and is beneficial for subsequent filling operations.

[0029] To make the first forming piece 1 and the second forming piece 2 fit the teeth better: The middle bottoms of the first forming piece 1 and the second forming piece 2 are both convex arc-shaped. During the installation process, the convex arc-shaped middle bottoms can tightly fit the bottom area between adjacent teeth, making the fit between the forming piece and the teeth closer. This improves the fit degree between the forming piece and the teeth, reduces the gaps, and helps to improve the quality of filling.

[0030] One side of the first forming piece 1 and the second forming piece 2 facing the area to be filled is a concave surface that is recessed away from the area to be filled, and the side of the first forming piece 1 and the second forming piece 2 facing the adjacent teeth is a convex surface that protrudes towards the adjacent teeth. This special concave-convex surface design enables the forming piece, after installation, to better accommodate the filling material on the recessed side, while the convex side tightly fits the surface of the adjacent teeth. This not only facilitates the filling of the filling material but also ensures a tight fit with the adjacent teeth, improving the accuracy and effect of filling.

[0031] To facilitate connection with the retainer: Two connection holes 5 for placing the wing tips of the retainer are provided on both sides of the first forming piece 1 and the second forming piece 2. Through these connection holes 5, the wing tips of the retainer can be accurately placed and fixed, thereby firmly connecting the forming piece and the retainer. This facilitates the connection operation between the forming piece and the retainer and provides convenience for the fixation of the entire forming piece system on the teeth.

[0032] The first forming piece 1, the second forming piece 2, and the retaining ring 3 are all made of medical stainless steel. The medical stainless steel has good strength, toughness, and corrosion resistance, and can maintain a stable shape and performance in the oral environment. This ensures the durability and safety of the forming piece system, and it can be stably used in oral treatment for a long time.

[0033] To ensure the tight fit between the first forming piece 1 and the second forming piece 2 and the tooth: Wedges 31 are provided at both opposite ends of the retaining ring 3, and the angles between the wedges 31 and the first forming piece 1 and the second forming piece 2 are in contact. Among them, the wedges 31 are made of medical silicone or rubber materials. During installation, by pressing the wedges 31 against the angles between the first forming piece 1 and the second forming piece 2, the squeezing force generated by the elastic deformation of the wedges 31 is used to make the first forming piece 1 and the second forming piece 2 fit more tightly on the tooth. This ensures the tight fit between the first forming piece 1 and the second forming piece 2 and the tooth, and avoids the displacement of the forming piece during the filling process, which affects the filling effect.

[0034] To improve the stability of the clamping of the first forming piece 1 and the second forming piece 2 by the wedges 31: The contact parts of the wedges 31 with the first forming piece 1 and the second forming piece 2 are triangular. The triangular contact parts can provide a more concentrated and stable squeezing force, and can better clamp and fix the first forming piece 1 and the second forming piece 2 on the tooth compared with other shapes. This improves the stability of the clamping of the first forming piece 1 and the second forming piece 2 by the wedges 31, and further ensures the reliability of the forming piece system during use.

[0035] During installation, pass the two ends of the second forming piece 2 through the two installation holes 41 on the first forming piece 1 respectively, so that the first forming piece 1 and the second forming piece 2 form a shape similar to "X". Install the assembled first forming piece 1 and second forming piece 2 between adjacent teeth, so that the middle bottom where the first forming piece 1 and the second forming piece 2 contact is located at the bottom between adjacent teeth, and the middle top is located above the adjacent teeth, avoiding resistance to the area between adjacent teeth. At the same time, make the hollow grooves 21 on the first forming piece 1 and the second forming piece 2 contact the middle part between adjacent teeth to ensure the stability of the position of the forming piece. Clamp the two opposite ends of the retaining ring 3 on both sides of the joint between the first forming piece 1 and the second forming piece 2 respectively, and fix the retaining ring 3 through the forming piece clamp. At this time, the first forming piece 1 and the second forming piece 2 are respectively wrapped around the teeth. Place the wedge 31 at the included angle between the two opposite ends of the retaining ring 3 and the first forming piece 1 and the second forming piece 2, and use the elastic deformation of the wedge 31 to generate a squeezing force, so that the first forming piece 1 and the second forming piece 2 fit more closely on the teeth. After the installation of the forming piece system is completed, the doctor can fill the filling material into the concave surface of the first forming piece 1 and the second forming piece 2 facing the area to be filled. Since the forming piece fits closely with the adjacent teeth, it can effectively prevent the filling material from overflowing into the adjacent tooth area and ensure the accuracy of filling. After filling, wait for the filling material to solidify, and then remove the forming piece system. Due to the reasonable design of the forming piece system, the filling body can form a good external shape and adjacent surface contact relationship, effectively avoiding various problems that occur in the traditional filling method.

[0036] It should be noted that the various standard parts used in the present invention can all be obtained from the market, and the non-standard parts can be specially customized. The connection methods adopted in the present invention are also very common means in the mechanical field, and the inventor will not elaborate here.

[0037] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application, according to the technical solution and its concept of the present application, makes equivalent substitutions or changes, and should be covered within the protection scope of the present application.

Claims

1. A double-sided proximal matrix system, comprising a first matrix (1) and a second matrix (2) for separating the area to be filled from adjacent teeth; It further comprises a retainer ring (3) for clamping both sides between the fitted first matrix (1) and the second matrix (2) to ensure that the first matrix (1) and the second matrix (2) are fitted to the teeth; It is characterized in that: A hollow groove (21) is formed in the middle of the second matrix (2) for the middle parts of the second matrix (2) and the first matrix (1) to contact the adjacent teeth as a single piece, reducing the discomfort of the patient; A positioning and connecting structure (4) connected to the second matrix (2) is arranged on the first matrix (1) for connecting the free end of the second matrix (2) at a preset position on the first matrix (1); The positioning and connecting structure (4) comprises mounting holes (41) symmetrically formed on both sides of the middle of the first matrix (1) and adapted to both ends of the second matrix (2).

2. The double-sided proximal matrix system according to claim 1, wherein: The mounting holes (41) are oval in shape, and the inner wall shape of the mounting holes (41) is the same as the outer wall shape of both sides of the second matrix (2) and they are in mutual fit.

3. The double-sided proximal forming sheet system according to claim 1, wherein: The ends of the first matrix (1) and the second matrix (2) are both in a convex arc shape.

4. The double-sided proximal matrix system according to claim 1, wherein: The middle tops of the first matrix (1) and the second matrix (2) are both in a convex arc shape.

5. The double-sided proximal matrix system according to claim 1, characterized in that: The middle bottoms of the first matrix (1) and the second matrix (2) are both in a convex arc shape.

6. The double-sided proximal matrix system according to claim 1, wherein: The surfaces of the first matrix (1) and the second matrix (2) facing the area to be filled are concave surfaces recessed in the direction away from the area to be filled, and the surfaces of the first matrix (1) and the second matrix (2) facing the adjacent teeth are convex surfaces protruding in the direction of the adjacent teeth.

7. The double-sided proximal matrix system according to claim 1, wherein: Two connection holes (5) for placing the wing tips of the retainer are formed on both sides of the first matrix (1) and the second matrix (2).

8. The double-sided proximal matrix system according to claim 1, wherein: The first matrix (1), the second matrix (2) and the retainer ring (3) are all made of medical stainless steel material.

9. The double-sided proximal matrix system according to claim 1, wherein: Wedges (31) are arranged at both opposite ends of the retainer ring (3), and the wedges (31) are in contact with the angles between the first matrix (1) and the second matrix (2).

10. The double-sided proximal matrix system according to claim 9, characterized in that: The parts of the wedges (31) in contact with the first matrix (1) and the second matrix (2) are triangular in shape.

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