Filling mold for anterior tooth space
By employing a labial and palatal V-shaped structure and reinforcement structure in the anterior interdental filling mold, the problem of difficulty in fitting the palatal gingival end of the existing mold is solved, resulting in a more efficient filling effect and less resin leakage, and simplifying the operation.
Patent Information
- Application Number
- CN202521019324.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-22
- Publication Date
- 2026-05-15
- Estimated Expiration
- 2035-05-22
AI Technical Summary
Existing pre-molded filling molds are difficult to fit effectively to the palatal gingival end when filling interdental spaces in the anterior teeth, leading to resin leakage. Furthermore, the operation is complicated and affects filling efficiency.
A filling mold for anterior interdental spaces was designed, featuring a V-shaped structure with labial and palatal gingival ends, combined with a reinforcement structure including raised strips and grooves. It is suitable for patients whose palatal gingiva is lower than that of the labial gingiva. Through the reinforcement structure and rubber dam, better fit and closure are achieved.
It improves the efficiency of filling anterior tooth gaps, reduces resin leakage, simplifies the procedure, and reduces the need for manual trimming by dentists.
Smart Images

Figure CN224235569U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dental technology, and in particular to a filling mold for anterior interdental spaces. Background Technology
[0002] Black triangles on teeth are more alarming than cavities. They are typically caused by receding gums. The main causes of gum recession include periodontitis and improper brushing. Periodontitis leads to widening gaps between teeth, black triangles, food getting stuck, teeth appearing longer, and tooth root sensitivity. Excessive brushing force and unsuitable brushing tools, such as using overly hard bristles and overly coarse toothpaste, can cause another type of gum recession. Misaligned teeth, excessive biting force, the pulling force during orthodontic treatment, and the pressure from ill-fitting dentures, combined with thin bone walls and gums, can also make certain teeth prone to gum recession, resulting in larger gaps at the base of the visible front teeth.
[0003] Nano-resin is translucent and has a milky luster, meeting the aesthetic, durability, and comfort needs of more patients requiring fillings. Its color is lifelike, closely resembling natural teeth. Bioclear™ filling technology is also known as the injection molding technology of dentistry. With minimal or no removal of tooth structure, a warm, fluid-paste composite resin is injected into a pre-shaped molded piece conforming to the anatomy of the proximal surfaces of natural teeth. This creates a perfect contour in hard-to-access subgingival or interproximal areas, closing black triangles and achieving the purpose of filling and restoring teeth.
[0004] However, existing pre-molded filling molds are mainly composed of molding sheet structures and are primarily used for closing anterior interdental spaces. The basic operating range is above the gingiva. However, in clinical practice, it has been found that most anterior teeth are filled after trauma to young permanent teeth. The existing molding sheets have a flush structure on the palatal and labial gingival ends. For easier operation, a large proportion of permanent tooth trauma cases have palatal defects that are flush with the gingiva, or the palatal side is located 1-2 mm below the gingiva. The shape of the tooth after trauma is irregular, which makes it difficult for the molding filling mold to fit the palatal cervical margin near the palatal end. This can easily lead to resin leakage during filling, requiring excessive grinding or manual trimming by the dentist before injection molding, which takes a long time and affects the filling efficiency of anterior interdental spaces. Utility Model Content
[0005] The purpose of this invention is to provide a filling mold for anterior interdental spaces to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a filling mold for anterior interdental spaces, comprising:
[0007] Pre-molded sheet;
[0008] The color display end is located at the bottom of the pre-molded sheet;
[0009] The cervical margin is set at the top of the pre-shaped molding piece with a front-to-back height difference structure. The cervical margin is suitable for patients whose palatal gingiva of the anterior teeth is lower than that of the labial gingiva.
[0010] A reinforcing structure is installed at the neck edge.
[0011] Preferably, the neck edge includes:
[0012] Labial gingival end, wherein the labial gingival end is located on the front side of the pre-molded sheet;
[0013] The palatal gingival end is located on the back of the pre-molded sheet, and the palatal gingival end and the labial gingival end are arranged in a V-shaped structure when viewed from above.
[0014] Preferably, the labial gingival end includes:
[0015] The lip-side neck edge has an arc-shaped chamfered edge structure and is formed on one side of the front of the pre-molded sheet;
[0016] The lip-side neck edge has a lower arc edge structure and is located on one side of the lip-side neck edge.
[0017] Preferably, the palatal gingival end includes:
[0018] Palatal neck edge, wherein the palatal neck edge is formed in an arc-shaped chamfered edge structure on one side of the back of the pre-molded sheet;
[0019] The palatal neck edge, wherein the palatal neck edge is formed by a lower arc edge structure on one side of the palatal neck edge.
[0020] Preferably, the palatal neck edge is provided with an upwardly sloping structure extending from the end of the labial neck edge, and the reinforcing structure is provided on the back of the palatal gingival end.
[0021] Preferably, the reinforcement structure includes:
[0022] A raised strip, the raised strip being fixed to the top of the palatal gingival end;
[0023] A rounded edge, wherein the rounded edge is formed on the outer wall of the protrusion away from the palatal gingival end;
[0024] The inner groove is formed at the bottom of the raised strip and is used for retention and sealing when the rubber dam is used with dental floss.
[0025] Preferably, the protrusion is fixed to the top of the back side of the palatal neck edge along the structure of the palatal neck edge, and the protrusion is fixed to one end of the palatal neck edge along the structure of the palatal neck edge.
[0026] Preferably, the height difference between the labial and palatal neck edges is 1-2 mm, and the height difference between the labial and palatal neck edges is 0-2 mm.
[0027] The technical effects and advantages of this utility model are as follows:
[0028] This invention utilizes a combination of labial and palatal gingival ends and a reinforcing structure. By deepening and lengthening the palatal gingival end, the filling mold can better fit the palatal tooth defect. The reinforcing structure at the gingival end facilitates the use of rubber dams and dental floss, achieving retention and sealing of the pre-shaped sheet, reducing resin leakage, and improving filling efficiency by eliminating the need for manual trimming of the sheet. Attached Figure Description
[0029] Figure 1 This is a schematic diagram of the overall structure of the present utility model. Figure 1 .
[0030] Figure 2 This is a schematic diagram of the overall side structure of this utility model.
[0031] Figure 3 This utility model Figure 1 A magnified schematic diagram of the structure at point A in the middle.
[0032] Figure 4 This is a schematic diagram of the overall structure of the present utility model. Figure 2 .
[0033] In the diagram: 1. Pre-molded sheet; 2. Color display end; 3. Labial gingival end; 31. Labial neck edge; 32. Labial neck edge; 4. Palatal gingival end; 41. Palatal neck edge; 42. Palatal neck edge; 5. Reinforcing structure; 51. Raised strip; 52. Rounded edge; 53. Inner groove. Detailed Implementation
[0034] 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 obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0035] This utility model provides, for example Figure 1-4The illustration shows a filling mold for anterior interdental spaces, comprising a pre-shaped molding sheet 1, a color display end 2, a cervical end, and a reinforcing structure 5. The pre-shaped molding sheet 1 is a polyester or polycarbonate film, possessing high flexibility, tear resistance, and biocompatibility to ensure safe contact with gingival tissue. The surface of the pre-shaped molding sheet 1 is smooth, preventing resin adhesion and facilitating the removal of the nano-resin after filling the anterior teeth. The inner cavity of the pre-shaped molding sheet 1 has a mirrored L-shaped pocket structure. The color display end 2 is located at the bottom of the pre-shaped molding sheet 1, facilitating color marking of the paired molds for quick and easy filling. Take two matching pre-shaped molding pieces 1. The cervical margins are set at the top of the pre-shaped molding pieces 1 with a height difference between the front and back. The cervical margins are suitable for patients whose palatal gingiva is lower than that of the labial gingiva of the anterior teeth. The cervical margins include a labial gingival end 3 and a palatal gingival end 4. The labial gingival end 3 is set on the front of the pre-shaped molding piece 1, and the palatal gingival end 4 is set on the back of the pre-shaped molding piece 1. The top view of the palatal gingival end 4 and the labial gingival end 3 is V-shaped, which facilitates the matching of the cervical margins at the mesial and distal margins of the anterior teeth. The two pre-shaped molding pieces 1 are divided into mesial and distal margins, which do not require trimming by the doctor.
[0036] The labial gingival end 3 includes a labial neck edge 31 and a labial neck edge 32. The labial neck edge 31 has an arc-shaped chamfered edge structure and is located on one side of the front of the pre-molded sheet 1. The labial neck edge 32 has a lower arc edge structure and is located on one side of the labial neck edge 31.
[0037] In addition, the palatal gingival end 4 includes a palatal cervical margin 41 and a palatal cervical edge 42. The palatal cervical margin 41 is formed with an arc-shaped chamfered edge structure on one side of the back of the pre-molded sheet 1. The palatal cervical edge 42 is formed with a lower arc edge structure on one side of the palatal cervical margin 41. The palatal cervical edge 42 is extended and inclined at the end of the labial cervical edge 32. The height difference between the relative positions of the labial cervical edge 31 and the palatal cervical margin 41 is 1-2 mm, and the height difference between the relative positions of the labial cervical edge 32 and the palatal cervical edge 42 is 0-2 mm. The cervical edge ends are lengthened and deepened to facilitate better fit of the palatal gingival end 4 and the labial gingival end 3 to the teeth. This also facilitates better coverage of the cervical edge defect area of the palatal teeth by the palatal cervical margin 41 and the palatal cervical edge 42, avoiding resin leakage during injection molding.
[0038] Meanwhile, the reinforcing structure 5 is installed at the cervical margin and is located on the back of the palatal gingival end 4. The reinforcing structure 5 includes a raised strip 51, an arc edge 52, and an inner groove 53. The raised strip 51 is fixed to the top of the palatal gingival end 4, the arc edge 52 is opened on the outer wall of the raised strip 51 away from the palatal gingival end 4, and the inner groove 53 is opened at the bottom of the raised strip 51. The inner groove 53 is used for retention and sealing when the rubber dam is used with dental floss. The raised strip 51 is fixed to the top of the back of the palatal cervical margin 41 along the structure of the palatal cervical margin 41. The raised strip 51 is fixed to one end of the palatal cervical margin 42 along the structure of the palatal cervical edge 42. The setting of the raised strip 51 at the gingival end makes it easy to lock the tampon in the inner groove 53 when the rubber dam is used with dental floss, thereby improving the retention and sealing effect of the pre-molded sheet 1, reducing the difficulty of operation, and improving the filling efficiency of the anterior interdental space.
[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A filling mold for anterior interdental spaces, characterized in that, include: Pre-molded sheet (1); Color display end (2), the color display end (2) is disposed at the bottom of the pre-plasticized sheet (1); The cervical margin is set at the top of the pre-shaped molding piece (1) with a front-to-back height difference structure. The cervical margin is adapted for use by patients whose palatal gingiva of the anterior teeth is lower than that of the labial gingiva. A reinforcing structure (5) is installed at the neck edge.
2. The filling mold for anterior interdental spaces according to claim 1, characterized in that, The neck edge includes: Labial gingival end (3), the labial gingival end (3) is disposed on the front side of the pre-molded sheet (1); Palatal gingival end (4), the palatal gingival end (4) is located on the back of the pre-molded sheet (1), and the palatal gingival end (4) and the labial gingival end (3) are arranged in a V-shaped structure when viewed from above.
3. A filling mold for anterior interdental spaces according to claim 2, characterized in that, The labial gingival end (3) includes: The lip-side neck edge (31) is formed by an arc-shaped chamfered edge structure on one side of the front of the pre-molded sheet (1); The labial neck edge (32) is formed by a lower arc edge structure on one side of the labial neck edge (31).
4. A filling mold for anterior interdental spaces according to claim 3, characterized in that, The palatal gingival end (4) includes: Palatal cervical margin (41), wherein the palatal cervical margin (41) is formed by an arc-shaped chamfered edge structure on one side of the back of the pre-molded sheet (1); The palatal neck edge (42) is formed by a lower arc edge structure on one side of the palatal neck edge (41).
5. A filling mold for anterior interdental spaces according to claim 4, characterized in that, The palatal neck edge (42) is extended upward at the end of the labial neck edge (32), and the reinforcing structure (5) is provided on the back of the palatal gingival end (4).
6. A filling mold for anterior interdental spaces according to claim 4, characterized in that, The reinforced structure (5) includes: A raised strip (51) is fixed to the top of the palatal gingival end (4); The arc edge (52) is formed on the outer wall of the protrusion strip (51) away from the palatal gingival end (4); The inner groove (53) is formed at the bottom of the protrusion (51) and is used for retention and closure when the rubber dam is used in conjunction with dental floss.
7. A filling mold for anterior interdental spaces according to claim 6, characterized in that, The protruding strip (51) is fixed to the top of the back side of the palatal neck edge (41) along the structure of the palatal neck edge (41), and the protruding strip (51) is fixed to one end of the palatal neck edge (42) along the structure of the palatal neck edge (42).
8. A filling mold for anterior interdental spaces according to claim 4, characterized in that, The height difference between the relative positions of the labial neck edge (31) and the palatal neck edge (41) is 1-2 mm, and the height difference between the relative positions of the labial neck edge (32) and the palatal neck edge (42) is 0-2 mm.