A multi-functional invisible orthodontic cutting forceps and its usage method

Abstract

This invention discloses a multi-functional cutting pliers for invisible orthodontic treatment and its usage method. The pliers include a cutting component, a left plier arm, and a right plier arm. The left and right plier arms are staggered and hinged together. The left plier arm has a left jaw and a first handle located on either side of its hinge point with the right plier arm. The right plier arm has a right jaw and a second handle located on either side of its hinge point with the left plier arm. The cutting component is movably connected to the left jaw. The head of the cutting component has a convex blade, and along the width of the convex blade are arranged sharp-angle cutting blocks, large-round-angle cutting blocks, and small-round-angle cutting blocks for cutting purposes. Correspondingly, the right jaw has a concave blade, which has sharp-angle concave holes, large-round-angle concave holes, and small-round-angle concave holes that cooperate with the sharp-angle cutting blocks, large-round-angle cutting blocks, and small-round-angle cutting blocks. Using the same cutting pliers, sharp-angle, large-round-angle, or small-round-angle notches can be cut into clear aligners, making the processing of clear aligners more convenient and faster.

Description

Technical Field

[0001] This invention belongs to the field of dental instrument technology, and specifically relates to a multifunctional invisible orthodontic cutting forceps and its usage method. Background Technology

[0002] The Fourth National Oral Health Epidemiological Survey Report shows that the prevalence of malocclusion in China is 74%. This huge market has grown under the stimulus of rising per capita disposable income, and clear aligners, which fully meet people's aesthetic needs, have become a new trend in the treatment of malocclusion.

[0003] Compared to traditional wire braces, clear aligners have the advantages of being removable and transparent, making it impossible to see the teeth being corrected up close. Made of transparent, elastic material, clear aligners allow for continuous, small-range movements of the teeth for correction. Before wearing the clear aligners, dentists attach small attachments to the teeth. These attachments secure the aligners and better control the direction of tooth movement, allowing for more precise control. Attaching orthodontic attachments requires cutting notches in the clear aligners, which requires large round-corner pliers; cutting small circular notches to hook orthodontic attachments requires small round-corner pliers; and cutting excess pointed plastic pieces between the teeth requires multiple cuts with scissors. Currently, the cutting pliers on the market are separate. With the increasing use of clear aligners, dentists need to cut more and more aligners. Using separate pliers is inconvenient, requiring dentists to search for the correct pliers and frequently change them, wasting time and effort. Summary of the Invention

[0004] To address the problems of existing technologies, the purpose of this invention is to provide a concealed, corrective, multi-functional cutting pliers. The cutting head has a convex blade with sharp-angle cutting blocks, large-round-angle cutting blocks, and small-round-angle cutting blocks arranged on it. Correspondingly, the right jaw has a concave blade with sharp-angle, large-round-angle, and small-round-angle recessed areas that mate with the sharp-angle, large-round-angle, and small-round-angle cutting blocks. By selecting different cutting blocks, sharp-angle, large-round-angle, or small-round-angle notches can be cut without changing the pliers, making it more convenient to use.

[0005] The technical solution adopted in this invention is as follows:

[0006] A multi-functional invisible orthodontic cutting pliers includes a cutting component, a left clamp arm, and a right clamp arm. The left and right clamp arms are staggered and hinged to each other. The left clamp arm has a left jaw and a first handle located on both sides of its hinge point with the right clamp arm. The right clamp arm has a right jaw and a second handle located on both sides of its hinge point with the left clamp arm. The cutting component is movably connected to the left jaw, and the head of the cutting component has a convex blade. Along the width direction of the convex blade, there are sharp-angle cutting blocks and large-round-angle cutting blocks for cutting purposes. The right jaw has a small rounded corner cutting section; the right jaw has a corresponding concave blade, which has a pointed corner concave hole area, a large rounded corner concave hole area, and a small rounded corner concave hole area that cooperate with the pointed corner cutting section, the large rounded corner cutting section, and the small rounded corner cutting section. When the left jaw rotates relative to the right jaw about its hinge point, the left jaw drives the cutting part to move, forcing the convex blade to move in a straight line along the depth of the concave hole to withdraw or insert the concave blade, so that different cutting sections can cut the object of cutting into the corresponding shape.

[0007] A better solution is that the convex cutter head has a protrusion facing the concave cutter head. The protrusion is an integral structure and includes a main body. The sharp corner shearing block, the large rounded corner shearing block, and the small rounded corner shearing block are formed by extending outward from the corresponding positions of the main body. Similarly, the concave cutter head has an integral through hole. The sharp corner concave hole area, the large rounded corner concave hole area, and the small rounded corner concave hole area are also set at the corresponding positions of the concave hole and extend outward.

[0008] In the first implementation scheme, the protrusions on the convex cutter head have sharp-corner shearing blocks, large-round-corner shearing blocks, and small-round-corner shearing blocks that cooperate with the sharp-corner concave hole areas, large-round-corner concave hole areas, and small-round-corner concave hole areas on the concave cutter head to cut out sharp-corner, large-round-corner, and small-round-corner notches. The integral construction of the protrusions and the integral through-hole on the concave cutter head make processing easier; only the edges need to be processed into a predetermined shape. That is, a single unit can realize the shearing function of multiple blocks.

[0009] A better solution is to place the sharp-corner shearing block in the middle of the main body and extend upwards, while the large rounded-corner shearing block and the small rounded-corner shearing block are placed on both sides of the main body and extend outwards at an angle.

[0010] The sharp-corner shearing block is located in the middle of the main body, while the large-corner and small-corner shearing blocks are located on both sides of the main body, making processing easier. Furthermore, the central location of the sharp-corner shearing block, with the large-corner and small-corner shearing blocks on either side, makes it easier to distinguish between them.

[0011] A better solution is to use semicircles for both the large and small rounded corner shearing blocks, with the large rounded corner shearing block having a radius of 2.8-4mm and the small rounded corner shearing block having a radius of 1-2.5mm.

[0012] Furthermore, a teardrop-shaped block extends outward from the main body. The teardrop-shaped block is composed of the small rounded corner shearing block and the narrow-side drooping block. The narrow-side drooping block is located between the small rounded corner shearing block and the main body. Similarly, a teardrop-shaped concave hole area that matches the teardrop-shaped block is formed on the concave hole of the concave cutter head.

[0013] As a second implementation scheme, the small rounded corner cutting block and the narrow-edge drooping block form a teardrop-shaped block. Placing the clear aligner in the small rounded corner cutting block can cut out a small rounded corner notch, and placing the clear aligner in the teardrop-shaped block can cut out a teardrop-shaped notch. In other words, the teardrop-shaped block can cut out small rounded corners and teardrop-shaped notches by adjusting the position of the clear aligner, so one cutting area has two functions. Then, combined with the large rounded corner cutting block and the sharp corner cutting block, three blocks can achieve four cutting functions, maximizing the implementation of functions in a compact space and meeting the goal of multi-purpose use.

[0014] A better embodiment is that the teardrop-shaped block is located in the middle of the protrusion, and the sharp-corner shearing block and the large-rounded corner shearing block are located on both sides of the teardrop-shaped block; the teardrop-shaped concave hole area is located in the upper middle of the concave hole, and the sharp-corner concave hole area and the large-rounded corner concave hole area are located on both sides of the teardrop-shaped concave hole area.

[0015] The teardrop-shaped blocks are positioned in the middle because they occupy less area on the convex cutting head, making them easier to process and more distinctive. They can also be used independently without interfering with each other.

[0016] A better embodiment is that a groove is provided on the bottom surface of the cutting piece, the left jaw is located in the groove, and the upper part of the left jaw has a semi-circular cross section, thereby forming an outwardly convex arc surface on the upper part of the left jaw. When the left jaw arm rotates relative to the right jaw arm around its hinge point, the arc surface abuts against the groove wall and drives the cutting piece to move.

[0017] This facilitates the rotation of the left jaw and prevents the outer wall of the left jaw from colliding and being damaged by the groove wall when the left jaw abuts against the groove wall and moves the cutting piece.

[0018] A better embodiment is provided with a guide post on the cutting piece and a guide hole on the right jaw. The guide hole is in the same depth direction as the hole of the concave cutter head. The guide post is inserted into the guide hole. When the left jaw abuts against the groove wall of the groove and drives the cutting piece to move, the guide post slides in the guide hole.

[0019] As the left jaw abuts against the groove wall and moves the workpiece, the guide post slides in the guide hole. Since the guide hole and the depth direction of the concave cutter head are the same, the convex cutter head can only move in a straight line along the depth direction of the concave cutter head when the workpiece moves. This prevents the convex cutter head from deflecting at an angle as the left jaw rotates during the insertion of the concave cutter head.

[0020] A better embodiment is that there are two guide posts, which are parallel to the convex cutter head and positioned below it; the right jaw also has two guide holes at the corresponding position.

[0021] When using both sides of the convex cutter head, the force on the convex cutter head is uneven, which may cause deviation. Two guide posts are set below the convex cutter head, and two matching guide holes are set at the corresponding positions of the right jaw, which ensures the balance of force on both sides of the convex cutter head when in use and prevents angular deviation.

[0022] Furthermore, a method for using a multi-functional invisible orthodontic cutting forceps includes the following steps:

[0023] S1) When the user opens the first handle and the second handle, the left clamp arm rotates relative to the right clamp arm around its hinge point and gradually separates. The left clamp jaw abuts against one side of the groove wall and drives the cutting piece to move, forcing the convex cutter head to move in a straight line along the hole depth direction of the concave cutter head to exit the concave hole of the concave cutter head.

[0024] S2) Insert the part of the object to be cut into the small rounded corner cutting area, sharp corner cutting area, large rounded corner cutting area, or teardrop-shaped area between the protrusion of the convex cutter head and the corresponding concave hole of the concave cutter head. The object to be cut is a transparent brace.

[0025] S3) When the user presses the first handle and the second handle, the left clamp arm rotates relative to the right clamp arm around its hinge point and gradually comes into contact. At this time, the left clamp jaw abuts against the groove wall on the other side of the groove and drives the cutting piece to move, forcing the convex cutter head to move in a straight line along the hole depth direction of the concave cutter head to insert into the concave hole of the concave cutter head, thereby completing the cutting of the transparent brace and cutting the transparent brace into small rounded corners, sharp corners, large rounded corners or teardrop-shaped notches.

[0026] The three cutting blocks can cut out four different shapes of notches, and the invisible orthopedic cutting forceps of this application have more cutting functions.

[0027] The beneficial effects of this invention are as follows:

[0028] 1. The cutting head has a convex blade with sharp-angle cutting sections, large-round-angle cutting sections, and small-round-angle cutting sections arranged on it. Correspondingly, the right jaw has a concave blade with sharp-angle, large-round-angle, and small-round-angle recessed areas that mate with these sections. Selecting different cutting sections allows for the creation of sharp-angle, large-round-angle, or small-round-angle notches without needing to change the pliers, making it more convenient and faster to use.

[0029] 2. The small rounded corner cutting section and the narrow-edge drooping section form a teardrop-shaped section. Similarly, a teardrop-shaped recessed area corresponding to the teardrop-shaped section is provided on the concave hole of the concave cutter head. The teardrop-shaped cutting section can cut out small rounded corners and teardrop-shaped notches by adjusting the position of the clear brace. One cutting section has two functions. Then, in combination with the large rounded corner cutting section and the sharp corner cutting section, three sections can achieve four cutting functions. This maximizes the implementation of functions in a compact space and meets the goal of multi-purpose use.

[0030] 3. The teardrop-shaped area is located in the center of the protrusion, with the sharp-corner shearing area and the large-round-corner shearing area located on either side of the teardrop-shaped area, and the concave cutting head is designed to work in conjunction with it. The teardrop-shaped area is positioned in the center because it occupies less area on the protrusion, making processing easier and providing better identification and differentiation. Each section can be used independently without interfering with the others. Attached Figure Description

[0031] Figure 1 This is a right view of the invisible orthodontic multifunctional cutting forceps in Embodiment 1 of the present invention;

[0032] Figure 2 This is a perspective view of the left clamp arm in this invention;

[0033] Figure 3 This is a schematic diagram of the structure of the cutting component in Embodiment 1 of the present invention;

[0034] Figure 4 This is a schematic diagram of the right clamp arm in Embodiment 1 of the present invention;

[0035] Figure 5 This is a perspective view of the right clamp arm in Embodiment 2 of the present invention;

[0036] Figure 6 This is a perspective view of the invisible orthodontic multifunctional cutting forceps in Embodiment 2 of the present invention;

[0037] Figure 7 This is a schematic diagram of the structure of the cutting component in Embodiment 2 of the present invention;

[0038] Figure 8 This is a schematic diagram of the structure of the cutting component and the left clamp arm in Embodiment 2 of the present invention;

[0039] The markings in the diagram are as follows:

[0040] 1. Cutting part; 2. Left jaw arm; 3. Right jaw arm; 4. Left jaw; 5. First handle; 6. Right jaw; 7. Second handle; 8. Protruding blade; 9. Sharp corner cutting section; 10. Large rounded corner cutting section; 11. Small rounded corner cutting section; 12. Concave blade; 13. Sharp corner concave hole area; 14. Large rounded corner concave hole area; 15. Small rounded corner concave hole area; 16. Protrusion; 17. Main body; 18. Groove; 19. Arc surface; 20. Guide post; 21. Guide hole; 22. Teardrop-shaped section; 23. Narrow edge drooping section; 24. Teardrop-shaped concave hole area; A. Hinge point. Implementation

[0041] To further understand the content of this invention, a detailed description of the invention will be provided in conjunction with the accompanying drawings and specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0042] The specific implementation of the invisible orthodontic multifunctional cutting forceps of the present invention is as follows:

[0043] Example 1: As Figure 1-4 As shown, this embodiment provides a multi-functional invisible orthodontic cutting pliers, including a cutting component 1, a left clamp arm 2, and a right clamp arm 3. The left clamp arm 2 and the right clamp arm 3 are staggered and hinged together at hinge point A by screws. The cutting component 1, the left clamp arm 2, and the right clamp arm 3 are all made of metal. Hinge point A divides the left clamp arm 2 into a forward left jaw 4 and a rearward first handle 5; similarly, hinge point A divides the right clamp arm 3 into a forward right jaw 6 and a rearward second handle 7. The first handle 5 and the second handle 7 cooperate for easy gripping.

[0044] like Figure 1-3As shown, the cutting component 1 is movably connected to the left jaw 4. The head of the cutting component 1 is provided with a convex blade 8, and along the width direction of the convex blade 8 are arranged sharp-angle cutting blocks 9, large-rounded cutting blocks 10, and small-rounded cutting blocks 11 for cutting purposes. The right jaw 6 is correspondingly provided with a concave blade 12, and the concave blade 12 is provided with sharp-angled concave holes 13, large-rounded concave holes 14, and small-rounded concave holes 15 that cooperate with the sharp-angled cutting blocks 9, large-rounded cutting blocks 10, and small-rounded cutting blocks 11. The sharp-angled notches are acute-angled triangular notches, mainly used to avoid the gums between the two teeth of a clear brace; the small-rounded and large-rounded notches are mainly used to avoid attachments bonded to the teeth. When the left clamp arm 2 rotates relative to the right clamp arm 3 around its hinge point A, the left clamp jaw 4 drives the cutting element 1 to move, forcing the convex cutter head 8 to move linearly along the direction of the depth of the concave hole to withdraw from or insert into the concave cutter head 12, so that different cutting blocks can complete the corresponding shape cutting of the transparent dental brace.

[0045] A better solution, such as Figure 3 As shown, the convex cutter head 8 has a protrusion 16 facing the concave cutter head 12. The protrusion 16 is an integral structure and includes a main body 17. A sharp-angle shearing block 9 is located in the middle of the main body 17 and extends upward. A large rounded-angle shearing block 10 and a small rounded-angle shearing block 11 are located on both sides of the main body 17 and extend obliquely outward. Similarly, the concave cutter head 12 has an integral through-hole. A sharp-angle concave hole area 13, a large rounded-angle concave hole area 14, and a small rounded-angle concave hole area 15 are also located at the corresponding positions of the concave hole and extend outward.

[0046] The protrusion 16 on the convex cutter head 8 has a sharp-corner shearing block 9, a large-rounded-corner shearing block 10, and a small-rounded-corner shearing block 11, which cooperate with the sharp-corner concave hole area 13, the large-rounded-corner concave hole area 14, and the small-rounded-corner concave hole area 15 provided on the concave cutter head 12 to cut out sharp-corner, large-rounded-corner, and small-rounded-corner notches. The integral structure of the protrusion 16 and the integral through-hole on the concave cutter head 12 make processing easier; only the edges need to be processed into a predetermined shape. That is, a single unit can realize the shearing function of multiple blocks.

[0047] The sharp-corner shearing block 9 is located in the middle of the main body 17, while the large rounded-corner shearing block 10 and the small rounded-corner shearing block 11 are located on both sides of the main body 17, making processing more convenient. Furthermore, the central position of the sharp-corner shearing block 9 and the side positions of the large and small rounded-corner shearing blocks 10 and 11 make them easier to distinguish during use, thus enhancing ease of use.

[0048] A better solution, such as Figure 3As shown, both the large rounded corner shearing block 10 and the small rounded corner shearing block 11 are semicircles. The radius of the large rounded corner shearing block 10 is 2.8-4mm, and the radius of the small rounded corner shearing block 11 is 1-2.5mm. The appropriate radius value can be selected according to actual needs.

[0049] A better solution, such as Figure 6 As shown in Figure 8, a groove 18 is provided on the bottom surface of the cutting piece 1. The left jaw 4 is located in the groove 18. The upper part of the left jaw 4 has a semi-circular cross-section, thus forming an outwardly protruding arc surface 19 on the upper part of the left jaw 4. When the left jaw arm 2 rotates relative to the right jaw arm 3 around its hinge point A, the arc surface 19 abuts against the groove wall of the groove 18 and drives the cutting piece 1 to move. This arrangement facilitates the rotation of the left jaw 4 and avoids collision damage between the outer wall of the left jaw 4 and the groove wall of the groove 18 when the left jaw 4 abuts against the groove wall of the groove 18 and drives the cutting piece 1 to move.

[0050] A better solution, such as Figure 3-8 As shown, the cutting piece 1 is provided with guide posts 20. Furthermore, there are two guide posts 20, which are parallel to the convex cutter head 8 and located below the convex cutter head 8. The right jaw 6 is also provided with two guide holes 21 at the corresponding positions. The guide holes 21 are in the same depth direction as the hole of the concave cutter head 12. The guide posts 20 are inserted into the guide holes 21. When the left jaw 4 abuts against the groove wall of the groove 18 and drives the cutting piece 1 to move, the guide posts 20 slide in the guide holes 21.

[0051] As the left jaw 4 abuts against the groove wall of the groove 18 and drives the cutting piece 1 to move, the guide post 20 slides in the guide hole 21. Since the guide hole 21 and the hole depth direction of the concave cutter head 12 are the same, the convex cutter head 8 can only move in a straight line along the hole depth direction of the concave cutter head 12 when the cutting piece 1 moves. This prevents the convex cutter head 8 from being angularly deflected as the left jaw 4 rotates during the insertion of the concave cutter head 12.

[0052] When using both sides of the convex cutter head 8, the force on the convex cutter head 8 is uneven, and it may be found to deviate. Two guide posts 20 are set below the convex cutter head 8, and two matching guide holes 21 are set at the corresponding positions of the right jaw 6 to ensure the balance of force on both sides of the convex cutter head 8 when in use, and to prevent angular deviation.

[0053] Example 2: This example differs from Example 1 in that: Figure 5-8As shown, a teardrop-shaped block 22 extends outward from the main body 17. The teardrop-shaped block 22 is composed of a small rounded corner shearing block 11 and a narrow-edge drooping block 23, with the narrow-edge drooping block 23 located between the small rounded corner shearing block 11 and the main body 17. Furthermore, the teardrop-shaped block 22 is located in the middle of the protrusion 16, with the sharp-corner shearing block 9 and the large rounded corner shearing block 10 located on either side of the teardrop-shaped block 22. Similarly, a teardrop-shaped recessed hole area 24 corresponding to the teardrop-shaped block 22 is formed on the recessed hole of the concave cutter head 12. The teardrop-shaped recessed hole area 24 is located in the upper middle position of the recessed hole, with the sharp-corner recessed hole area 13 and the large rounded corner recessed hole area 14 located on either side of the teardrop-shaped recessed hole area 24.

[0054] The small rounded-corner cutting block 11 and the narrow-edge drooping block 23 form a teardrop-shaped block 22. Placing the clear aligner in the small rounded-corner cutting block 11 cuts out a small rounded-corner notch, and placing the clear aligner in the teardrop-shaped block 22 cuts out a teardrop-shaped notch. In other words, the teardrop-shaped block 22 can cut out both small rounded-corner and teardrop-shaped notches by adjusting the position of the clear aligner, thus one cutting area has two functions. Then, in conjunction with the large rounded-corner cutting block 10 and the sharp-corner cutting block 9, three blocks can achieve four cutting functions, maximizing the implementation of functions within a compact space and fulfilling the goal of multi-purpose use.

[0055] The teardrop-shaped block 22 is positioned in the middle. Since the teardrop shape occupies less area of ​​the convex cutter head 8, it is not only easier to process, but also more distinctive and recognizable when used. Each block can be used independently without interfering with the others.

[0056] The other structures in this embodiment are the same as in Embodiment 1.

[0057] like Figure 6 As shown, this invention also proposes a method for using a multi-functional invisible orthodontic cutting forceps, including the following steps:

[0058] S1) When the user opens the first handle 5 and the second handle 7, the left clamp arm 2 rotates relative to the right clamp arm 3 around its hinge point A and gradually separates. The left clamp jaw 4 abuts against one side of the groove wall of the groove 18 and drives the cutting piece 1 to move, forcing the convex cutter head 8 to make a linear movement along the hole depth direction of the concave cutter head 12 to exit the concave hole of the concave cutter head 12. The guide post 20 slides out of the guide hole 21.

[0059] S2) Insert the part of the transparent braces that needs to be cut into the small rounded corner cutting block 11, or sharp corner cutting block 9, or large rounded corner cutting block 10, or teardrop-shaped block 22 between the small rounded corner cutting block 16 of the convex cutter head 8 and the corresponding concave hole of the concave cutter head 12.

[0060] S3) When the user presses the first handle 5 and the second handle 7, the left clamp arm 2 rotates relative to the right clamp arm 3 around its hinge point and gradually comes into contact. At this time, the left clamp jaw 4 abuts against the other side of the groove wall of the groove 18 and drives the cutting piece 1 to move, forcing the convex cutter head 8 to move linearly along the depth direction of the hole of the concave cutter head 12 to insert into the concave hole of the concave cutter head 12, and the guide post 20 slides inward into the guide hole 21. Thus, the transparent braces are cut, and small rounded corners, sharp corners, large rounded corners, or teardrop-shaped notches are cut into the transparent braces.

[0061] The above embodiments are only for illustrating the technical concept and features of the present invention. Their purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be used to limit the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A multi-functional invisible orthodontic cutting pliers, comprising a cutting component, a left clamp arm, and a right clamp arm, all made of metal, wherein the left and right clamp arms are staggered and hinged to each other, the left clamp arm having a left jaw and a first handle located on both sides of its hinge point with the right clamp arm, and the right clamp arm having a right jaw and a second handle located on both sides of its hinge point with the left clamp arm, characterized in that, The cutting component is movably connected to the left jaw. The head of the cutting component has a convex blade, and along the width of the convex blade are arranged sharp-corner cutting blocks, large-round-corner cutting blocks, and small-round-corner cutting blocks for cutting purposes. The right jaw is correspondingly provided with a concave blade, which has sharp-corner concave holes, large-round-corner concave holes, and small-round-corner concave holes that cooperate with the sharp-corner cutting blocks, large-round-corner cutting blocks, and small-round-corner cutting blocks. When the left jaw rotates relative to the right jaw about its hinge point, the left jaw drives the cutting component to move, forcing the convex blade to move linearly along the depth of the concave hole to retract or insert into the concave blade, so that different cutting blocks can cut the object to the corresponding shape.

2. The invisible orthodontic multifunctional cutting forceps according to claim 1, characterized in that, The convex cutter head has a protrusion facing the concave cutter head. The protrusion is an integral structure and includes a main body. The sharp corner shearing block, the large rounded corner shearing block, and the small rounded corner shearing block are formed by extending outward from the corresponding positions of the main body. Similarly, the concave cutter head has an integral through concave hole. The sharp corner concave hole area, the large rounded corner concave hole area, and the small rounded corner concave hole area are also set at the corresponding positions of the concave hole and extend outward.

3. The invisible orthodontic multifunctional cutting forceps according to claim 2, characterized in that, The sharp-corner shearing block is located in the middle of the main body and extends upwards, while the large rounded-corner shearing block and the small rounded-corner shearing block are located on both sides of the main body and extend outwards at an angle.

4. The invisible orthodontic multifunctional cutting forceps according to claim 2, characterized in that, Both the large and small rounded corner shearing blocks are semicircular. The radius of the large rounded corner shearing block is 2.8-4mm, and the radius of the small rounded corner shearing block is 1-2.5mm.

5. The invisible orthodontic multifunctional cutting forceps according to claim 2, characterized in that, The main body extends outward into a teardrop-shaped section, which is composed of the small rounded corner shearing section and the narrow-side drooping section. The narrow-side drooping section is located between the small rounded corner shearing section and the main body. Similarly, a teardrop-shaped concave hole area that matches the teardrop-shaped section is formed on the concave hole of the concave cutter head.

6. The invisible orthodontic multifunctional cutting forceps according to claim 5, characterized in that, The teardrop-shaped block is located in the middle of the protrusion, and the sharp-corner shearing block and the large-rounded shearing block are located on both sides of the teardrop-shaped block; the teardrop-shaped concave hole area is located in the upper middle of the concave hole, and the sharp-corner concave hole area and the large-rounded concave hole area are located on both sides of the teardrop-shaped concave hole area.

7. The invisible orthodontic multifunctional cutting forceps according to claim 6, characterized in that, A groove is provided on the bottom end face of the cutting piece, and the left jaw is located in the groove. The upper part of the left jaw has a semi-circular cross section, thereby forming an outwardly convex arc surface on the upper part of the left jaw. When the left jaw arm rotates relative to the right jaw arm around its hinge point, the arc surface abuts against the groove wall and drives the cutting piece to move.

8. The invisible orthodontic multifunctional cutting forceps according to claim 7, characterized in that, The cutting piece is provided with a guide post, and the right jaw is provided with a guide hole. The guide hole is in the same direction as the hole depth of the concave cutter head. The guide post is inserted into the guide hole. When the left jaw abuts against the groove wall of the groove and drives the cutting piece to move, the guide post slides in the guide hole.

9. The invisible orthodontic multifunctional cutting forceps according to claim 8, characterized in that, The guide post has two posts, which are parallel to the convex cutter head and are positioned below the convex cutter head; the right jaw also has two guide holes at the corresponding position.

10. A method of using the invisible orthodontic multifunctional cutting forceps according to claim 7, characterized in that, Includes the following steps: S1) When the user opens the first handle and the second handle, the left clamp arm rotates relative to the right clamp arm around its hinge point and gradually separates. The left clamp jaw abuts against one side of the groove wall and drives the cutting piece to move, forcing the convex cutter head to move in a straight line along the hole depth direction of the concave cutter head to exit the concave hole of the concave cutter head. S2) Insert the part of the object to be cut into the small rounded corner cutting area, sharp corner cutting area, large rounded corner cutting area, or teardrop-shaped area between the protrusion of the convex cutter head and the corresponding concave hole of the concave cutter head. The object to be cut is a transparent brace. S3) When the user presses the first handle and the second handle, the left clamp arm rotates relative to the right clamp arm around its hinge point and gradually comes into contact. At this time, the left clamp jaw abuts against the groove wall on the other side of the groove and drives the cutting piece to move, forcing the convex cutter head to move in a straight line along the hole depth direction of the concave cutter head to insert into the concave hole of the concave cutter head, thereby completing the cutting of the transparent brace and cutting the transparent brace into small rounded corners, sharp corners, large rounded corners or teardrop-shaped notches.

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