Novel adjacent surface forming system

Abstract

The utility model discloses a novel adjacent surface forming system, which belongs to the technical field of dental restoration, and comprises two symmetrically arranged tip shaping blocks, the tip shaping blocks are respectively arranged at the end parts of a first clamp arm and a second clamp arm, and when the first clamp arm and the second clamp arm are close to each other, the tip shaping blocks are arranged on the tip shaping blocks. The tip shaping block tightly presses a shaping sheet for tooth restoration, the first forceps arm and the second forceps arm are rotatably connected through a connecting rotating shaft, a first elastic piece is fixedly connected between the first forceps arm and the second forceps arm, a second elastic piece is detachably connected between the first forceps arm and the second forceps arm, and the first elastic piece is detachably connected with the second elastic piece. The first elastic piece and the second elastic piece are both used for providing force for the first clamp arm and the second clamp arm to get close to each other. The opening and closing functions of the two clamp arms are maintained through the first elastic piece, then the second elastic piece is assembled, and the tip shaping block compresses the forming piece through pulling force provided by the second elastic piece.

Description

Technical Field

[0001] This utility model relates to the field of dental restoration technology, and in particular to a novel proximal surface shaping system. Background Technology

[0002] Resin-filled proximal cavity shaping systems are a technique for dental restoration, primarily used to treat Class II cavities in posterior teeth, i.e., defects that extend to the pulp. This system comprises multiple components, such as shaping pieces, piece clips, separating rings, and wedges, which work together to restore the tooth's physiological shape and functional contact relationships. In practice, the neck of the proximal cavity is first filled with a highly filler-type flowable resin to improve the adaptability of the cavity walls and margins. Subsequently, a deeper filling can be achieved using a hybrid filler-type composite resin through a centripetal deposition technique.

[0003] Traditional adjacent face forming systems, such as Figure 1 As shown, the two forming clips are held by the dividing ring, pressing the forming clips surrounding the defective tooth tightly against the tooth. Then, the neck edge of the cavity is filled with a high-filler type of flowing resin. However, in the traditional proximal forming system, since the dividing ring alone provides the holding force, the required force is relatively large. Tools are needed to open the dividing ring to facilitate placing the forming clips on both sides of the tooth. This is not convenient or labor-saving. Moreover, the fixed holding force of the dividing ring can easily damage some fragile teeth. In addition, the traditional forming clips have fixed sharp corners, which cannot guarantee a full fit with the tooth edge after pressing the forming clips. Wedges are often required for filling, making it less flexible to use. Utility Model Content

[0004] The purpose of this invention is to solve the problems of difficult and laborious operation and inflexible use of the traditional proximal surface molding system, and to provide a new type of proximal surface molding system. It has the advantages of using two elastic elements to cooperate, which improves the ease of operation and is flexible in use for different types of tooth stability applications.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A novel proximal shaping system includes two symmetrically arranged tip shaping blocks, which are respectively mounted on the ends of a first clamp arm and a second clamp arm. When the first clamp arm and the second clamp arm approach each other, the tip shaping blocks press against a shaping piece for dental restoration. The first clamp arm and the second clamp arm are rotatably connected via a connecting shaft. A first elastic element is fixedly connected between the first clamp arm and the second clamp arm, and a second elastic element is detachably connected between the first clamp arm and the second clamp arm. Both the first elastic element and the second elastic element are used to provide a force for the first clamp arm and the second clamp arm to approach each other.

[0007] Preferably, the elastic force of the second elastic element is greater than the elastic force of the first elastic element.

[0008] Preferably, the end of the first clamp arm away from the tip molding block is connected to the first operating arm, and the end of the second clamp arm away from the tip molding block is connected to the second operating arm. The first and second clamp arms are moved away from each other by the first and second operating arms moving closer to each other. The first elastic element is a torsion spring, which is installed between the first and second operating arms.

[0009] Preferably, the plane containing the first and second operating arms is higher than the plane containing the first and second clamping arms, and the two clamping arms are curved upwards to connect the two operating arms.

[0010] Preferably, the second elastic element is a rubber ring, and limiting protrusions are fixed on both the first and second clamp arms. The first and second clamp arms are connected by the two ends of the rubber ring being fitted onto the limiting protrusions.

[0011] Preferably, the first clamp arm has a single limiting protrusion, and the second clamp arm has multiple limiting protrusions along the length of the second clamp arm, so that the elastic force changes when the rubber ring is fitted onto different limiting protrusions.

[0012] Preferably, the second elastic element is a rubber chain ring, which has a long strip structure with several through holes distributed along its length on its surface. The elasticity of the rubber chain ring is changed by fitting it onto the limiting protrusion through different through holes.

[0013] Preferably, the tip shaping block is detachably installed at the ends of the two clamp arms. The tip shaping block includes a connecting sleeve, and a connector is provided at the end of the clamp arm. The connecting sleeve and the connector are inserted into each other.

[0014] Preferably, the tip shaping block further includes a base, with a connecting sleeve on one side of the base and a clamp on the other side. The clamp is a triangular block, and the included angle of the end of the triangular block away from the base can be set to different angles.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The first elastic element allows the two clamp arms to return to their closed state when opened, fulfilling the opening and closing function of the clamp arms. The pulling force of the second elastic element brings the two clamp arms closer together, pressing the tip molding block against the forming piece. Since the second elastic element is detachably connected and its elastic force is greater than that of the first elastic element, when using this system, the smaller elastic force of the first elastic element allows the two clamp arms to be easily opened, bringing the tip molding block close to the forming piece. Then, the second elastic element is put on, and its pulling force pulls the tip molding block to press the forming piece, making the system convenient and labor-saving to operate, and ensuring a more secure pressing of the forming piece when repairing teeth.

[0017] 2. By setting the first elastic element to have an adjustable stretch length, the appropriate stretch length can be selected for different patients' teeth, which can effectively ensure that the pressure of the tip molding block extruding the forming sheet is not too large or too small, resulting in better stability.

[0018] 3. By making the tip shaping block and the clamp arm detachable, it is convenient to replace tip shaping blocks of different specifications, so that the chuck of the tip shaping block can fit different types of teeth, making the system more flexible and reliable to use, and also reducing the cost of use. Attached Figure Description

[0019] Figure 1 This is a schematic diagram illustrating the application of a traditional adjacent-face forming system.

[0020] Figure 2 This is a schematic diagram of the overall structure of the adjacent surface forming system of this utility model.

[0021] Figure 3 This is a schematic diagram of the connection structure between the clamp arm and the operating arm of this utility model.

[0022] Figure 4 This is a schematic diagram of the structure of the rubber ring of this utility model fitted onto different limiting protrusions.

[0023] Figure 5 This is a schematic diagram of the connection structure of the rubber chain ring of this utility model.

[0024] Figure 6 This is a schematic diagram of the structure of the tip shaping block of different specifications of this utility model.

[0025] In the diagram: 1. First clamp arm, 2. Second clamp arm, 3. First operating arm, 4. Second operating arm, 5. Connecting shaft, 6. Anti-slip pad, 7. First elastic element, 8. Limiting protrusion, 9. Second elastic element, 10. Tip shaping block, 11. Base, 12. Clamp, 13. Connecting sleeve, 14. Connector, 15. Rubber chain ring. Detailed Implementation

[0026] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0027] like Figure 2 As shown, a novel proximal molding system includes two symmetrically arranged tip molding blocks 10, which are respectively installed at the ends of a first clamping arm 1 and a second clamping arm 2. When the first clamping arm 1 and the second clamping arm 2 approach each other, the tip molding blocks 10 press against the molding piece used for dental restoration. The first clamping arm 1 and the second clamping arm 2 are rotatably connected by a connecting shaft 5. A first elastic element 7 is fixedly connected between the first clamping arm 1 and the second clamping arm 2. A second elastic element 9 is also detachably connected between the first clamping arm 1 and the second clamping arm 2. Both the first elastic element 7 and the second elastic element 9 are used to provide the force for the first clamping arm 1 and the second clamping arm 2 to approach each other, and the elastic force of the second elastic element 9 is greater than the elastic force of the first elastic element 7. The first clamp arm 1 and the second clamp arm 2 are rotatably connected. The first elastic element 7 provides a force to bring the first clamp arm 1 and the second clamp arm 2 closer together. Since the elastic force of the first elastic element 7 is small and the second elastic element 9 is detachable, the second elastic element 9 is not installed when the system is in use. The user can easily pry open the first clamp arm 1 and the second clamp arm 2 to separate the two tip shaping blocks 10. After the tip shaping blocks 10 are placed on both sides of the molding sheet, the prying force is released, and the first elastic element 7 can pull the two clamp arms closer together so that the tip shaping blocks 10 initially contact the molding sheet. Then the second elastic element 9 is connected, and the pulling force of the second elastic element 9 is used to pull the tip shaping blocks 10 to press the molding sheet, waiting for the filling resin operation in the dental restoration process.

[0028] To facilitate opening the first clamp arm 1 and the second clamp arm 2, as follows: Figure 2 As shown, the end of the first clamping arm 1 away from the tip shaping block 10 is connected to the first operating arm 3, and the end of the second clamping arm 2 away from the tip shaping block 10 is connected to the second operating arm 4. The first operating arm 1 and the second operating arm 2 are moved away from each other by the first operating arm 3 and the second operating arm 4. The first elastic element 7 is a torsion spring, which is installed between the first operating arm 3 and the second operating arm 4. The first operating arm 1 and the second clamping arm 2 are indirectly driven by the first operating arm 3 and the second operating arm 4. A lever is formed between the first clamping arm 1, the connecting shaft 5 and the first operating arm 3. In this way, the first clamping arm 1 and the second operating arm 2 can be separated simply by bringing the first operating arm 3 and the second operating arm 4 closer together. There is no need to open them apart from each other. Because there are other teeth in the area surrounded by the first clamping arm 1 and the second operating arm 2 when the system is in use, this pinching and opening method is not hindered by teeth compared with the traditional method of opening from the inside, and is more convenient to operate. The outer walls of the first operating arm 3 and the second operating arm 4 are covered with anti-slip pads 6 to prevent the user from slipping when in contact.

[0029] The first operating arm 3 and the second operating arm 4 adopt a rotational motion, so the selection of a torsion spring for the first elastic element 7 can fully utilize the elastic force release of the first elastic element 7.

[0030] To further avoid the operating arm touching other teeth in the mouth, such as Figure 3 As shown, the plane where the first operating arm 3 and the second operating arm 4 are located is higher than the plane where the first clamp arm 1 and the second clamp arm 2 are located. The two clamp arms are bent upwards in an arc shape to connect the two operating arms, forming a height difference between the operating arms and the clamp arms. In this way, when the clamp arms are close to the teeth, the operating arms are slightly higher than the teeth and will not touch the teeth.

[0031] The second elastic element 9 mentioned above adopts a detachable connection method, such as... Figure 2 As shown, the connection of the second elastic element 9 is described in detail. The second elastic element 9 is a rubber ring. The first clamp arm 1 and the second clamp arm 2 are both fixed with limiting protrusions 8. The first clamp arm 1 and the second clamp arm 2 are connected by the two ends of the rubber ring being fitted onto the limiting protrusions 8. The method of fitting the rubber ring onto the limiting protrusions 8 is convenient for disassembly and assembly. The rubber ring is for single use and can also ensure hygiene.

[0032] Because different patients have different tooth sizes and varying degrees of strength, using the same rubber ring can only provide fixed elasticity and cannot meet the needs of different patients. To solve this problem, such as... Figure 4 As shown, a single limiting protrusion 8 is provided on the first clamp arm 1, and multiple limiting protrusions 8 are provided along the length of the second clamp arm 2. This changes the elastic force when the rubber ring is fitted onto different limiting protrusions 8. Since the distance between the limiting protrusion 8 on the first clamp arm 1 and the limiting protrusions 8 at different positions on the second clamp arm 2 is different, the deformation length produced by the same specification rubber ring fitted onto different limiting protrusions 8 is also different. The change in deformation length changes the elastic force of the rubber ring. For example, for larger or weaker teeth, a shorter deformation length of the rubber ring is required, so the rubber ring can be connected to two limiting protrusions 8 that are closer together. Conversely, for smaller or stronger teeth, the rubber ring can be connected to two limiting protrusions 8 that are farther apart. This allows for flexible adjustment of the elastic force of the second elastic element 9.

[0033] There are many ways to change the elastic force of the second elastic element 9, such as... Figure 5As shown, another structural style of the second elastic element 9 is shown. The second elastic element 9 is a rubber chain ring 15. The rubber chain ring 15 has a long strip structure with several through holes distributed along its length on its surface. The elastic force of the rubber chain ring 15 can be changed by fitting different through holes onto the limiting protrusions 8. Using the rubber chain ring 15, it is not necessary to set multiple limiting protrusions 8. When it is necessary to change the elastic force, it is only necessary to fit through holes with different spacings onto the limiting protrusions 8 to change the tension of the rubber chain ring 15.

[0034] like Figure 6 As shown, the tip shaping block 10 is detachably mounted on the ends of the two clamp arms. The tip shaping block 10 includes a connecting sleeve 13, and a connector 14 is provided at the end of the clamp arm. The connecting sleeve 13 and the connector 14 are inserted into each other. The tip shaping block 10 is detachably mounted, allowing for the replacement of different specifications of tip shaping blocks 10 for use, thus reducing operating costs. The tip shaping block 10 also includes a base 11. The connecting sleeve 13 is provided on one side of the base 11, and a chuck 12 is provided on the other side. The chuck 12 is a triangular block, and the included angle of the end of the triangular block away from the base 11 can be set to different angles. Since the gap size between different types of teeth is different, selecting a chuck 12 with a different tip included angle for different gaps can better ensure that the chuck 12 fits the gap between the teeth more closely. Therefore, when the shaping piece is pressed, the shaping piece fits the teeth more tightly, increasing the stability and flexibility of the system.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0036] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A new kind of proximal contouring system, comprising two symmetrically arranged tip contouring blocks (10) mounted at the end of a first jaw arm (1) and a second jaw arm (2) respectively, when the first jaw arm (1) and the second jaw arm (2) are close to each other, the tip contouring blocks (10) press the contouring sheet for tooth restoration, characterized in that, The first jaw arm (1) and the second jaw arm (2) are rotatably connected through a connecting pivot (5), the first jaw arm (1) and the second jaw arm (2) are fixedly connected with a first elastic member (7), and the first jaw arm (1) and the second jaw arm (2) are further detachably connected with a second elastic member (9); the first elastic member (7) and the second elastic member (9) are used for providing a force for the first jaw arm (1) and the second jaw arm (2) to approach each other.

2. A novel proximal forming system according to claim 1, characterized in that, The elastic force of the second elastic member (9) is greater than that of the first elastic member (7).

3. A novel proximal forming system as claimed in claim 1, wherein, The first jaw arm (1) is connected with a first operating arm (3) at one end away from the tip shaping block (10), the second jaw arm (2) is connected with a second operating arm (4) at one end away from the tip shaping block (10), the first jaw arm (1) and the second jaw arm (2) are caused to move away from each other by the first operating arm (3) and the second operating arm (4) approaching each other, and the first elastic member (7) is a torsion spring installed between the first operating arm (3) and the second operating arm (4).

4. A novel proximal forming system as claimed in claim 1, wherein, The first operating arm (3) and the second operating arm (4) are located at a plane higher than the plane where the first jaw arm (1) and the second jaw arm (2) are located, and the two jaw arms are curved in an arc shape to connect the two operating arms.

5. A novel proximal forming system as claimed in claim 1, wherein, The second elastic member (9) is a rubber ring, and the first jaw arm (1) and the second jaw arm (2) are fixed with limiting protrusions (8); the first jaw arm (1) and the second jaw arm (2) are connected by the rubber ring being sleeved on the limiting protrusions (8).

6. A novel proximal forming system according to claim 5, wherein, The limiting protrusion (8) on the first jaw arm (1) is provided with a single limiting protrusion (8), and the limiting protrusions (8) on the second jaw arm (2) are provided with a plurality of limiting protrusions (8) along the length direction of the second jaw arm (2), so that the elastic force of the rubber ring changes when the rubber ring is sleeved on different limiting protrusions (8).

7. A novel proximal forming system as claimed in claim 1, wherein, The second elastic member (9) is a rubber chain ring (15), the rubber chain ring (15) has a strip-shaped structure, a plurality of through holes are distributed on the surface along the length direction, and the elastic force of the rubber chain ring (15) is changed by being sleeved on the limiting protrusions (8) through different through holes.

8. A novel proximal forming system as claimed in claim 1, wherein, The tip shaping block (10) is detachably installed at the end of the two jaw arms, the tip shaping block (10) comprises a connecting sleeve (13), the end of the jaw arm is provided with a connecting head (14), and the connecting sleeve (13) and the connecting head (14) are inserted.

9. A novel proximal forming system according to claim 8, characterized in that, The tip shaping block (10) further comprises a base (11), one side of the base (11) is provided with the connecting sleeve (13), and the other side is provided with a chuck (12); the chuck (12) is a triangular block, and the included angle of one end of the triangular block away from the base (11) can be set to different angles.

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