A shaped sheet and a shaped sheet set

Abstract

The utility model discloses a kind of shaped pieces and shaped piece group, belong to dental medical appliance technical field, including shaped piece main body, shaped piece main body is used to place in the adjacent surface side of tooth with the hole to be repaired, shaped piece main body can be curved towards the hole to be repaired and it is wrapped in, to form repair filling area between shaped piece main body and the hole to be repaired, the end of shaped piece main body corresponding crown is equipped with the inside bending edge that is curved towards wrapping surface, inside bending edge has preset radian, inside bending edge extends out clamping piece on it. Inside bending edge has preset radian, so that, after resin material fills, the crown edge ridge of the form with radian is formed, conveniently better repair out the form and radian of the edge ridge of human body crown in later period, make tooth form natural and beautiful, avoid destroying dentition continuity, ensure tooth overall coordination, ensure masticatory efficiency.

Description

Technical Field

[0001] This utility model relates to the field of dental medical device technology, and in particular to a molding sheet and a molding sheet assembly. Background Technology

[0002] The proximal surface shaping system, a core tool for Class II cavity restoration, involves placing a shaping piece on the damaged side of the tooth and then encasing the cavity under the grip of specialized forceps. This acts as an artificial wall, replacing the lost proximal surface of the tooth. Combined with composite resin filling, it effectively reconstructs the anatomical morphology of the proximal surfaces and restores the interproximal relationship. It reduces the risk of food impaction by precisely reconstructing the proximal contact points, thereby reducing food retention and preventing complications such as secondary caries and periodontitis. It also maintains arch stability, avoids tooth displacement due to poor interproximal relationships, and ensures occlusal function.

[0003] Studies have shown that, compared to the choice of composite resin materials, the correct design of the prosthesis plays a more important role in restoring tooth anatomy and improving the success rate. However, current prostheses are only designed for the proximal surfaces, lacking control over the curvature of the marginal ridge (the junction between the occlusal and proximal surfaces) and tooth morphology. This results in overly straight or asymmetrical marginal ridges on the restoration, which not only affects aesthetics but also disrupts the continuity of the dentition, leading to poor overall tooth coordination and even affecting chewing efficiency. Utility Model Content

[0004] The purpose of this utility model is to solve the above-mentioned technical problems and provide a molding sheet and a molding sheet assembly. The molding sheet body has an inner curved edge on one end corresponding to the crown. The inner curved edge bends toward the wrapping surface of the molding sheet body and has a preset curvature so that after the resin material is filled, a curved crown margin ridge is formed. This facilitates better restoration of the shape and curvature of the human crown margin ridge in the later stage, making the tooth shape natural and beautiful, avoiding damage to the continuity of the dentition, ensuring the overall coordination of the teeth, and ensuring chewing efficiency.

[0005] To achieve the above objectives, the present invention provides the following solution: The present invention discloses a molding sheet, including a molding sheet body, which is used to be placed on the proximal side of a tooth with a cavity to be repaired. The molding sheet body can be bent toward the cavity to be repaired and wrap it inside, so as to form a repair filling area between the molding sheet body and the cavity to be repaired. The molding sheet body has an inner curved edge that bends toward the wrapping surface at one end corresponding to the crown. The inner curved edge has a preset curvature, and a clamping piece extends from the inner curved edge.

[0006] Preferably, the main body of the molding piece is divided into an upper wrapping segment and a lower wrapping segment in the tooth length direction. The two ends of the upper wrapping segment in the periodontal direction extend at least beyond the edge of the cavity to be repaired at the crown, and the two ends of the lower wrapping segment in the periodontal direction extend at least beyond the edge of the cavity to be repaired at the neck.

[0007] Preferably, the lower wrapping segment extends toward the tooth root from the end away from the upper wrapping segment.

[0008] Preferably, the upper wrapping segment and the lower wrapping segment are curved along the periodontal direction in their natural state.

[0009] Preferably, the upper wrapping segment is also curved along the tooth length direction in its natural state, and the position of the curved inflection point of the upper wrapping segment in the tooth length direction corresponds to the curved inflection point of the adjacent surface of the tooth crown.

[0010] Preferably, the width of the lower wrapping segment gradually decreases from the end closest to the upper wrapping segment to the end furthest away in the tooth length direction.

[0011] Preferably, the curved inflection point of the upper wrapping segment and the lower wrapping segment have a first preset distance in the radial direction, and the ends of the upper wrapping segment and the lower wrapping segment that are far apart from each other have a second preset distance in the tooth length direction.

[0012] Preferably, the clamping piece is provided with a first mark and a second mark, the first mark corresponding to the first preset distance and the second mark corresponding to the second preset distance.

[0013] Preferably, the first mark is a background color applied to the surface of the clamping piece, and the second mark is a color line set on the surface of the clamping piece.

[0014] This utility model also discloses a forming sheet assembly, comprising multiple forming sheets as described above, wherein the first preset distance and / or second preset distance of the multiple forming sheets are different.

[0015] The present invention achieves the following technical advantages over the prior art: The molding sheet of this utility model includes a molding sheet body. One end of the molding sheet body corresponding to the crown is provided with an inner curved edge. The inner curved edge bends toward the wrapping surface of the molding sheet body and has a preset curvature so that after the resin material is filled, a curved crown margin ridge is formed. This facilitates better restoration of the shape and curvature of the human crown margin ridge in the later stage, making the tooth shape natural and beautiful, avoiding damage to the continuity of the dentition, ensuring the overall coordination of the teeth, and ensuring chewing efficiency.

[0016] The other technical solutions of this utility model have achieved the following technical effects compared with the prior art: 1. In the molding sheet of this utility model, the main body of the molding sheet has a certain curvature in its natural state. When in use, the bending direction is towards the tooth to be repaired, which makes it easier to bend it with special pliers later. This reduces the resistance when the molding sheet itself deforms under external pressure, so as to better fit the lesion, facilitate the dentist's operation, better shape it, and achieve more precise repair.

[0017] 2. In the molded sheet of this utility model, the clamping sheet is provided with a first mark and a second mark, which not only serve as an identification function to facilitate doctors to select the model, but also serve as a clamping area, making it easier and faster to place the molded sheet on the lesion.

[0018] 3. The molding sheet assembly of this utility model includes multiple molding sheets with different parameters. Based on dental clinical operation habits, the appropriate molding sheet can be selected according to the initial tooth height and the size of the interproximal space to cope with patients in different situations. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained by analyzing these drawings without creative effort.

[0020] Figure 1 This is a top-view three-dimensional structural diagram of the wrapping surface of the formed sheet in an embodiment of the present invention. Figure 2 This is a three-dimensional structural diagram of the wrapping surface of the formed sheet in an embodiment of the present invention, viewed from below. Figure 3 This is a top-view perspective three-dimensional structural diagram of the back side of the molded sheet in an embodiment of this utility model. Figure 4 This is a top view of the formed sheet in an embodiment of the present invention; Figure 5 This is a rear view schematic diagram of the formed sheet in an embodiment of the present invention; Figure 6 This is a side view of the formed sheet in an embodiment of the present invention. Figure 7 This is a cross-sectional view of the formed sheet in an embodiment of the present invention; Figure 8 This is a schematic diagram of the structure of the formed sheet assembly in an embodiment of this utility model; Figure 9 This is a schematic diagram of the structure of the molding sheet in the embodiment of this utility model (when the molding sheet used cannot match the tooth root exposed due to gingival recession); Figure 10This is a schematic diagram of the structure of the molding sheet (which can be used to match the tooth root when the gums recede and the tooth root is exposed) in the embodiment of this utility model.

[0021] Explanation of reference numerals in the attached diagram: 1. Main body of the forming piece; 2. Clamping piece; 3. Inner curved edge; 4. Crown; 5. Neck of tooth; 6. Root of tooth; 7. Cavity to be repaired; 11. Upper wrapping section; 12. Lower wrapping section; 13. Curved surface turning point; 21. Background color of the marking; 22. Color marking line. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments analyzed and obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] The purpose of this invention is to provide a molding sheet and a molding sheet assembly to solve the problems existing in the prior art. The inner curved edge has a preset curvature so that after the resin material is filled, a curved crown margin ridge is formed, which facilitates better restoration of the shape and curvature of the human crown margin ridge in the later stage, so that the tooth shape is natural and beautiful, avoids damage to the continuity of the dentition, ensures the overall coordination of the teeth, and ensures chewing efficiency.

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] Example 1 like Figures 1 to 10As shown, this embodiment provides a molding sheet, including a molding sheet body 1. The molding sheet body 1 is used to place on the proximal side of a tooth with a cavity 7 to be repaired. The molding sheet body 1 can be bent toward the cavity 7 to be repaired and wrap it inside. It usually requires the use of special pliers to be bent to form a repair filling area between the molding sheet body 1 and the cavity 7 to be repaired. The repair can be completed later by injecting resin material into the repair filling area. The molding sheet body 1 has one end corresponding to the crown 4 and one end corresponding to the neck 5 in the tooth length direction. The end of the molding sheet body 1 corresponding to the crown 4 is provided with an inner curved edge 3. The inner curved edge 3 is bent toward the wrapping surface of the molding sheet body 1 and has a preset curvature. This preset curvature needs to meet the curvature requirements of the marginal ridge of the human tooth crown so that after the resin material is filled, a curved crown marginal ridge is formed. This facilitates better restoration of the shape and curvature of the marginal ridge of the human tooth crown, making the tooth shape natural and beautiful, avoiding damage to the continuity of the dentition, ensuring the overall coordination of the teeth, and ensuring chewing efficiency. A clamping piece 2 extends from the inner curved edge 3, which facilitates the clamping of the molded piece for insertion and removal. This allows for more convenient and quick placement of the molded piece body 1 at the lesion site. In its natural state, the clamping piece 2 extends along the tooth length.

[0026] In one embodiment, the forming sheet body 1 is divided into an upper wrapping section 11 and a lower wrapping section 12 in the direction of tooth length. The two ends of the upper wrapping section 11 in the periodontal direction extend at least beyond the edge of the cavity 7 to be repaired at the crown 4, and have wrapped the cavity 7 to be repaired at the crown 4. The two ends of the lower wrapping section 12 in the periodontal direction extend at least beyond the edge of the cavity 7 to be repaired at the neck 5, so as to wrap the cavity 7 to be repaired at the neck 5 in the circumferential direction.

[0027] In one embodiment, the lower wrapping segment 12 extends toward the root 6 from the end away from the upper wrapping segment 11 to wrap the cavity 7 to be repaired at the neck 5 in the tooth length direction.

[0028] In one embodiment, the upper wrapping segment 11 is bent along the periodontal direction in its natural state, and the lower wrapping segment 12 is also bent along the periodontal direction in its natural state, so that the entire molding sheet body 1 is bent along the periodontal direction. When placing the molding sheet body 1, the bending direction of the molding sheet body 1 should be towards the tooth to be repaired. Because the molding sheet body 1 itself has a certain curvature, it is easy to bend it with special forceps later, reducing the resistance when the molding sheet itself deforms under external pressure, so as to better fit the lesion, facilitate the dentist's operation, better shape, and achieve more precise restoration.

[0029] In one embodiment, the upper wrapping segment 11 is also curved along the tooth length direction in its natural state. The curved inflection point 13 of the upper wrapping segment 11 is located in the tooth length direction and corresponds to the curved inflection point 13 of the adjacent surface of the crown 4, so as to restore the shape of the human crown 4, ensure the overall coordination of the teeth, and avoid occlusal problems.

[0030] In one embodiment, the width of the lower wrapping segment 12 gradually decreases in the tooth length direction from the end closest to the upper wrapping segment 11 to the end furthest away.

[0031] In one embodiment, the curved inflection point 13 of the upper wrapping segment 11 and the lower wrapping segment 12 are radially separated by a first predetermined distance L1 (typically defined as the depth of the forming piece). The ends of the upper wrapping segment 11 and the lower wrapping segment 12 that are furthest from each other are separated by a second predetermined distance L2 (typically defined as the height of the forming piece) in the tooth length direction. The curved inflection point 13 of the upper wrapping segment 11 and the end furthest from the lower wrapping segment 12 are separated by a third predetermined distance L3 in the tooth length direction. The two ends of the upper wrapping segment 11 are separated by a fourth predetermined distance L4 in the tooth length direction. The two ends of the lower wrapping segment 12 are separated by a fifth predetermined distance L5 in the tooth length direction.

[0032] By pre-setting the parameters of the above-mentioned preset distances, different types of molded sheets can be formed. For example: The first preset distance L1 (depth of the forming sheet) is usually designed to be 0.5mm, 1.0mm, 1.5mm, or 2.0mm; The second preset distance L2 (height of the forming sheet) is usually designed to be 5.5mm, 6.5mm, 7.5mm, or 8.5mm; The third preset distance L3 is usually designed to be 2.0mm; The fourth preset distance L4 is typically designed to be 5.5mm; The fifth preset distance L5 is usually designed to be 1.0mm, 2.5mm, or 3.0mm.

[0033] To address different restoration needs, select the appropriate type of shaping piece. For example, shaping pieces with a height of 5.5mm or 6.5mm are suitable for most patients. However, for patients with mild gingival recession, due to insufficient gingival coverage, root 6 may be exposed (see reference). Figure 9 (As shown). Therefore, using a shaping piece with a height of 7.5mm or 8.5mm can effectively address patients with mild gingival recession, repairing the exposed root portion and restoring the normal morphology of the proximal surfaces of the teeth (see reference). Figure 10 (As shown).

[0034] The parameters above are just examples; more types of molded sheets can be produced according to actual needs.

[0035] In one embodiment, the clamping piece 2 is provided with a first mark and a second mark. The first mark corresponds to a first preset distance L1, that is, the depth of the forming piece; the depth of the forming piece can be determined from the first mark. The second mark corresponds to a second preset distance L2, that is, the height of the forming piece; the height of the forming piece can be determined from the first mark. Of course, the reverse is also possible, such as the first mark corresponding to the second preset distance L2 and the second mark corresponding to the first preset distance L1.

[0036] The identifiers can be color-coded (different colors correspond to different parameters), numerical (different numbers correspond to different parameters), letter-coded (different letters correspond to different parameters), or graphic-coded (different graphics correspond to different parameters). There are many ways to set identifiers, which will not be listed here.

[0037] In one embodiment, the first identifier is a background color 21 applied to the surface of the clamping piece 2. That is, the color of the clamping piece 2 corresponds to the depth (first preset distance L1) of the formed piece; for example, depths of 0.5mm, 1.0mm, 1.5mm, and 2.0mm correspond to gray, purple, white, and yellow backgrounds, respectively. The second identifier is a color-coded line 22 set on the surface of the clamping piece 2; that is, the color of the color-coded line 22 corresponds to the height (second preset distance L2) of the formed piece; for example, heights of 5.5mm, 6.5mm, 7.5mm, and 8.5mm correspond to red, blue, green, and black lines, respectively.

[0038] Example 2 like Figures 1 to 10 As shown, this embodiment provides a shaping piece set, including multiple shaping pieces as described in Embodiment 1. The first preset distance L1 and / or the second preset distance L2 of the multiple shaping pieces are different. That is, there are three possibilities: different first preset distances L1 and the same second preset distance L2; different first preset distances L1 and different second preset distances L2; ​​and the same first preset distance L1 and different second preset distances L2. The number of shaping pieces is prepared in advance as needed. For example, three, ten, etc., can be prepared in advance based on parameters that are frequently used in the surgery. For example, heights of 5.5mm, 6.5mm, 7.5mm, and 8.5mm, and depths of 0.5mm, 1.0mm, 1.5mm, and 2.0mm can be combined to create ten shaping pieces, forming a shaping piece set for later use. Then, during the surgery, based on dental clinical operating habits, a suitable shaping piece is selected according to the initial tooth height and the size of the interproximal space. The shaping pieces with a height of 5.5mm or 6.5mm are suitable for most patients, while the shaping pieces with a height of 7.5mm or 8.5mm are effective for patients with mild gingival recession.

[0039] In one embodiment, the model numbers of multiple molded sheets are distinguished using a first identifier and a second identifier.

[0040] In one embodiment, the first identifier is a background color 21 applied to the surface of the clamping piece 2. The second identifier is a color mark 22 set on the surface of the clamping piece 2. The first preset distance L1 and / or the second preset distance L2 of the multiple formed pieces are different, that is, the background color 21 and / or the color mark 22 are different. Three examples are provided: (Refer to...) Figure 8 As shown, the background color 21 of the upper left and upper right molded pieces is different, while the color markings 22 are the same; the background color 21 of the upper left and lower left molded pieces is different, while the color markings 22 are different; the background color 21 of the upper right and lower left molded pieces is the same, while the color markings 22 are different.

[0041] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A shaped sheet, characterized in that, The device includes a molding sheet body for placement on the proximal side of a tooth with a cavity to be repaired. The molding sheet body is bendable toward the cavity to be repaired and wraps around it to form a restorative filling area between the molding sheet body and the cavity to be repaired. The molding sheet body has an inner curved edge that bends toward the wrapping surface at one end corresponding to the crown. The inner curved edge has a preset curvature, and a clamping piece extends from the inner curved edge.

2. The formed sheet according to claim 1, characterized in that, The main body of the molded piece is divided into an upper wrapping segment and a lower wrapping segment in the tooth length direction. The two ends of the upper wrapping segment in the periodontal direction extend at least beyond the edge of the cavity to be repaired at the crown, and the two ends of the lower wrapping segment in the periodontal direction extend at least beyond the edge of the cavity to be repaired at the neck.

3. The formed sheet according to claim 2, characterized in that, The lower wrapping segment extends toward the root from the end away from the upper wrapping segment.

4. The formed sheet according to claim 2, characterized in that, The upper and lower wrapping segments are curved along the periodontal direction in their natural state.

5. The formed sheet according to claim 4, characterized in that, The upper wrapping segment is also curved along the tooth length direction in its natural state, and the position of the curved inflection point of the upper wrapping segment in the tooth length direction corresponds to the curved inflection point of the adjacent surface of the tooth crown.

6. The formed sheet according to claim 4, characterized in that, The width of the lower wrapping segment gradually decreases from the end closest to the upper wrapping segment to the end furthest away from the tooth length.

7. The formed sheet according to claim 5, characterized in that, The curved inflection point of the upper wrapping segment and the lower wrapping segment are radially separated by a first preset distance, and the ends of the upper wrapping segment and the lower wrapping segment that are far apart from each other are separated by a second preset distance in the tooth length direction.

8. The formed sheet according to claim 7, characterized in that, The clamping piece is provided with a first mark and a second mark, the first mark corresponds to the first preset distance, and the second mark corresponds to the second preset distance.

9. The formed sheet according to claim 8, characterized in that, The first mark is a background color applied to the surface of the clamping piece, and the second mark is a color line set on the surface of the clamping piece.

10. A shaped sheet assembly, characterized in that, It includes multiple molded sheets as described in any one of claims 7-9, wherein the first preset distance and / or second preset distance of the multiple molded sheets are different.

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