Imprint manufacturing device of guide plate for deciduous tooth preparation

Abstract

The utility model discloses an imprint manufacturing device of a guide plate for deciduous tooth preparation. The imprint manufacturing device comprises an imprint model, a guide plate and trimming bulges, the imprint model is designed in computer software according to a dentition model of a patient, and the imprint model is printed into an entity through a 3D printing technology; the guide plate is formed by imprinting on the imprinting model through the pressed film sheet; trimming bulges are distributed on the imprinting model, surround along a dentition axial surface of the imprinting model to form an edge trimming path of the guide plate, surround along an occlusal surface and an axial surface of an affected tooth on the imprinting model to form a windowing path of the guide plate, and are provided with grooves formed along the path of the trimming bulges; when the tooth preparation guide plate is manufactured, the trimming bulges with different structures are used for guiding, so that the problems that the cutting edge of the guide plate is uneven and the size of a preparation guide window is not accurately formed due to the fact that a cutting tool is easily separated from the convex surfaces of the trimming bulges during operation can be avoided; the prepared tooth adjusting and grinding precision is improved by using the prepared tooth guide plate with the accurate size.

Description

Technical Field

[0001] The utility model relates to the technical field of tooth preparation, in particular to an impression making device for a guide plate used for deciduous tooth preparation. Background Art

[0002] Dental caries is a common disease that occurs most frequently in deciduous teeth. In recent years, with changes in dietary structure, the population suffering from dental caries has become younger and younger.

[0003] During the clinical treatment of caries in deciduous teeth, when the scope of caries is large, various types of prefabricated crowns are needed to repair the appearance of the deciduous teeth in order to restore their chewing function. Before using the finished prefabricated crowns to repair the affected teeth, certain tooth preparation is required to make their appearance match the selected prefabricated crowns.

[0004] In the prior art, tooth preparation is mostly carried out under the guidance of a guide plate. During the production process of the guide plate, it is usually necessary to trim and correct it with the help of a cutting tool. The accuracy of the cutting tool operation will affect the flatness of the cutting edge of the guide plate and the trimming accuracy of the window opened on the guide plate for the affected tooth area. Utility Model Content

[0005] The utility model aims to provide an impression making device for a guide plate for the preparation of deciduous teeth, so as to quickly and accurately complete the tooth preparation operation with the help of the guiding effect of the guide plate, solve the problem that the cutting tool has low trimming accuracy on the cutting edge of the guide plate and the window opening on the guide plate, so that the operator can make a high-precision tooth preparation guide plate in a short time.

[0006] In order to solve the above technical problems, the utility model specifically provides the following technical solutions:

[0007] The utility model provides an impression making device for a guide plate for preparing a deciduous tooth, comprising: an impression model, which is designed in computer software according to a patient's dentition model, printed into a solid body by 3D printing technology, and used to simulate the patient's dentition distribution; a guide plate, which is formed by impression on the impression model by a lamination film; wherein trimming protrusions are distributed on the impression model, and the trimming protrusions are used to highlight the edge trimming path and the window opening path of the guide plate; the trimming protrusions surround along the dentition axial surface of the impression model to form the edge trimming path of the guide plate, and the trimming protrusions surround along the occlusal surface and the axial surface of the affected tooth on the impression model to form the window opening path of the guide plate; the trimming protrusions are provided with grooves opened along the path thereof, and the grooves are used to guide the cutting path of the trimming tool; or, two trimming protrusions are provided in parallel on the impression model, and a groove is formed between the trimming protrusions to guide the cutting path of the trimming tool.

[0008] Furthermore, the cross section of the trimming protrusion is an arc-shaped surface; wherein the arc-shaped top of the trimming protrusion is concave to form a groove.

[0009] Furthermore, the cross section of the trimming protrusion is an arc-shaped surface; wherein one side of the arc-shaped top of the trimming protrusion is concave to form a groove, and the groove is close to the occlusal surface of the imprint model.

[0010] Furthermore, the cross-sections of the two trimming protrusions are square surfaces; wherein the side walls of the trimming protrusions are perpendicular to the axial plane of the stamping model, and a groove is formed between the side walls of the trimming protrusions.

[0011] Furthermore, the cross-sectional shapes of the two trimming protrusions are different; among them, the cross-sectional shape of the trimming protrusion close to the occlusal surface of the imprinting model is a trapezoidal surface, and the cross-sectional shape of the other trimming protrusion is a square surface, and a groove is formed between the side walls of the trimming protrusions; the cross-sectional shape of the groove is a right-angled trapezoid, and the width of the groove expands outward from the bottom of the groove.

[0012] Furthermore, after the laminated film is heated and softened using a dental vacuum laminator, the laminated film is imprinted and adsorbed onto the imprinting model using vacuum negative pressure.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model digitally designs an embossing model with a physical trimming protrusion, and changes the structural shape of the trimming protrusion so that a cutting tool can be embedded in the embossing model through the restriction of the trimming protrusion. The trimming protrusion guides the operator, and improves the trimming accuracy of the edge of the guide plate when the operator uses the cutting tool to trim the guide plate, thereby avoiding the problem that the cutting tool is easily separated from the convex surface of the trimming protrusion during operation, causing the uneven cutting edge of the guide plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0016] Figure 1 A three-dimensional structural diagram of an impression making device for a guide plate for deciduous tooth preparation provided by the utility model;

[0017] Figure 2 A cross-sectional view of an imprinting model in an embodiment of the utility model;

[0018] Figure 3A cross-sectional view of an imprinting model in an embodiment of the utility model;

[0019] Figure 4 A side view of an embossing model in an embodiment of the utility model;

[0020] Figure 5 A cross-sectional view of an imprinting model in an embodiment of the utility model;

[0021] Figure 6 A cross-sectional view of an imprinting model in an embodiment of the utility model;

[0022] Figure 7 A schematic diagram of the structure of the window opening path on the axial surface of the stamping model in one embodiment of the utility model;

[0023] Figure 8 For along Figure 7 A schematic diagram of the structure of the guide plate obtained by performing axial windowing on the windowing path shown;

[0024] Fig. 9 For along Figure 1 Schematic diagram of the structure of the guide plate obtained by performing occlusal window opening along the window opening path shown.

[0025] The numbers in the figure represent the following:

[0026] 10. Imprinting model; 11. Trimming protrusions; 12. Grooves; 13. Edge trimming path; 14. Window opening path; 20. Guide plate. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] like Figure 1 As shown, the utility model provides an impression making device for a guide plate for preparing a deciduous tooth, comprising:

[0029] The embossed model 10 is designed in computer software according to the patient's dentition model. The embossed model 10 is printed into a solid body by 3D printing technology. The embossed model 10 is used to simulate the patient's dentition distribution.

[0030] A guide plate 20, the guide plate 20 is formed by stamping a stamping film on the stamping mold 10;

[0031] Among them, trimming protrusions 11 are distributed on the impression model 10, and the trimming protrusions 11 are used to highlight the edge trimming path 13 and the window opening path 14 of the guide plate 20; the trimming protrusions 11 surround the axial surface of the dentition of the impression model 10 to form the edge trimming path 13 of the guide plate 20, and the trimming protrusions 11 surround the occlusal surface and the axial surface of the affected tooth on the impression model 10 to form the window opening path 14 of the guide plate 20; the trimming protrusions 11 are provided with grooves 12 opened along the path thereof, and the grooves 12 are used to guide the cutting path of the trimming tool; or, two trimming protrusions 11 are provided in parallel on the impression model 10, and a groove 12 is formed between the trimming protrusions 11 to guide the cutting path of the trimming tool.

[0032] The utility model uses a digitally designed impression model 10, and uses the printed impression model 10 as a mold for making a tooth preparation guide plate, and marks the path and area to be trimmed of the guide plate 20 to be made on the impression model 10, and displays it in the specific structural form of the trimming protrusion 11, and then the heated and softened impression film is imprinted on the impression model 10, so that the trimming protrusion 11 on it can be further revealed on the impression film, and then the impression film is appropriately trimmed and windowed according to the guiding path of the trimming protrusion 11, so as to produce a tooth preparation guide plate suitable for the patient's dentition model.

[0033] However, in the process of trimming and opening windows of the laminated film, whether using a cutting knife or a dental drill, it is difficult to accurately trim along the curved extension path of the trimming protrusion 11, resulting in an uneven cutting edge of the manufactured guide plate 20, thereby increasing the workload required for further adjustment and grinding of the guide plate 20. Based on this problem, in the present invention, by changing the structural shape of the trimming protrusion 11, the cutting tool can be embedded in the stamping model 10 through the restriction of the trimming protrusion 11, for example, a groove 12 opened along the path of the trimming protrusion 11 is provided on the trimming protrusion 11, or two trimming protrusions 11 are provided in parallel on the stamping model 10, so that the cutting tool can be clamped between the two trimming protrusions 11. Through the guidance of the trimming protrusion 11 with the above structural characteristics, when the operator uses the cutting tool to trim the guide plate 20, the trimming accuracy of the edge of the guide plate 20 is improved, thereby avoiding the problem that the cutting tool is easily separated from the convex surface of the trimming protrusion 11 during operation, causing the uneven cutting edge of the guide plate 20.

[0034] In this embodiment, it should be noted that Figure 1 , 7 On the impression model 10 shown in the figure, the occlusal surface and the axial surface of the affected tooth can be provided with a window opening path 14 to guide the window opening on the guide plate 20, respectively. Figure 8 As shown in FIG. 1 , it is a schematic diagram of the structure of the guide plate 20 formed after a window is opened on the axial surface of the affected tooth on the impression model 10. Fig. 9, which is a schematic diagram of the structure of the guide plate 20 formed after a window is opened on the occlusal surface of the affected tooth on the impression model 10. The windowing purposes of the two are different. The windowing on the occlusal surface of the affected tooth is to form a tooth preparation guide window on the occlusal surface of the guide plate 20; the windowing on the axial surface of the affected tooth is to form a tooth preparation guide window on the axial surface of the guide plate 20.

[0035] In order to make the laminating film fit better on the trimming protrusion 11, as Figure 2 As shown, in one embodiment provided by the present utility model, the cross section of the trimming protrusion 11 is an arc-shaped surface; wherein the arc-shaped top of the trimming protrusion 11 is concave to form a groove 12.

[0036] In the above embodiment, the groove 12 is located in the middle of the trimming protrusion 11, which means that the cutting direction of the cutting tool needs to be completely perpendicular to the axial direction of the stamping model 10 in order to trim the guide plate 20 formed after the lamination film is bonded, causing inconvenience to the operator during the trimming process.

[0037] In order to solve the above problems, Figure 3 As shown, in a preferred embodiment of the utility model provided based on the above-mentioned embodiment, the cross-section of the trimming protrusion 11 is an arc-shaped surface; wherein, one side of the arc-shaped top of the trimming protrusion 11 is concave to form a groove 12, and the groove 12 is close to the occlusal surface of the stamping model 10.

[0038] In this embodiment, since the center line of the groove 12 is inclined to the axial surface of the stamping model 10 and the groove 12 is arranged close to its occlusal surface, the cutting direction of the cutting tool held by the operator can be inclined to the axial surface direction of the stamping model 10, so as to perform trimming operations on the guide plate 20 formed after the stamping film is bonded, thereby avoiding inconvenience to the operator during the trimming process.

[0039] In another embodiment provided by the present utility model, Figure 4-5 As shown, the cross-section of the two trimming protrusions 11 is a square surface; wherein, the side walls of the trimming protrusions 11 are perpendicular to the axial plane of the stamping mold 10 , and a groove 12 is formed between the side walls of the trimming protrusions 11 .

[0040] In this embodiment, the heated and softened pressed film is easy to fit to the outside of the trimming protrusion 11, and due to the tension limit, it is less embedded in the groove 12, so that the pressed film can be suspended above the stamping model 10 after forming the guide plate 20, so that it is easy to cut it by the cutting tool. In this embodiment, in order to improve the tightness of the pressed film when it fits to the outside of the trimming protrusion 11, the side edge where the outer side surface of the trimming protrusion 11 meets the axial surface of the stamping model 10 can be preferably rounded to form an arc transition, so as to facilitate the softened pressed film to fit.

[0041] In order to facilitate the operator to operate the cutting tool obliquely, such as Figure 6 As shown, in a preferred embodiment of the utility model provided based on the above embodiment, the cross-sectional shapes of the two trimming protrusions 11 are different; wherein, the cross-sectional shape of the trimming protrusion 11 close to the occlusal surface of the stamping model 10 is a trapezoidal surface, and the cross-sectional shape of the other trimming protrusion 11 is a square surface, and a groove 12 is formed between the side walls of the trimming protrusions 11; the cross-sectional shape of the groove 12 is a right-angled trapezoid, and the width of the groove 12 expands outward from the bottom of the groove.

[0042] In the above embodiment, the guide plate 20 can be made by using a dental vacuum laminator to heat and soften the laminating film, and then using vacuum negative pressure to press and adsorb the laminating film onto the embossing model 10 .

[0043] The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and protection scope of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present application.

Claims

1. An impression making device for a guide plate for deciduous tooth preparation, characterized in that: include: An embossed model (10), wherein the embossed model (10) is designed in computer software according to a patient's dentition model, and the embossed model (10) is printed into a solid body by 3D printing technology, and the embossed model (10) is used to simulate the patient's dentition distribution; A guide plate (20), wherein the guide plate (20) is formed by stamping a stamping film on the stamping model (10); Wherein, the stamping model (10) is provided with trimming protrusions (11), and the trimming protrusions (11) are used to highlight the edge trimming path (13) and the window opening path (14) of the guide plate (20); The trimming protrusion (11) surrounds the dentition axial surface of the impression model (10) to form an edge trimming path (13) of the guide plate (20), and the trimming protrusion (11) surrounds the occlusal surface and axial surface of the affected tooth on the impression model (10) to form a window opening path (14) of the guide plate (20); The trimming protrusion (11) is provided with a groove (12) opened along its path, and the groove (12) is used to guide the cutting path of the trimming tool; Alternatively, two trimming protrusions (11) are provided in parallel on the stamping model (10), and a groove (12) is formed between the trimming protrusions (11) to guide the cutting path of the trimming tool.

2. The device for making an impression of a guide plate for preparing deciduous teeth according to claim 1, characterized in that: The cross section of the trimming protrusion (11) is an arc-shaped surface; The arc-shaped top of the trimming protrusion (11) is concave to form the groove (12).

3. The device for making an impression of a guide plate for preparing deciduous teeth according to claim 1, characterized in that: The cross section of the trimming protrusion (11) is an arc-shaped surface; Wherein, one side of the arc-shaped top of the trimming protrusion (11) is concave to form the groove (12), and the groove (12) is close to the occlusal surface of the stamping model (10).

4. The device for making an impression of a guide plate for preparing deciduous teeth according to claim 1, characterized in that: The cross-sections of the two trimming protrusions (11) are square surfaces; The side walls of the trimming protrusions (11) are perpendicular to the axial plane of the stamping model (10), and the grooves (12) are formed between the side walls of the trimming protrusions (11).

5. The device for making an impression of a guide plate for preparing deciduous teeth according to claim 1, characterized in that: The cross-sectional shapes of the two trimming protrusions (11) are different; The cross section of the trimming protrusion (11) close to the occlusal surface of the stamping model (10) is a trapezoidal surface, the cross section of the other trimming protrusion (11) is a square surface, and the groove (12) is formed between the side walls of the trimming protrusions (11); The cross section of the groove (12) is a right-angle trapezoid, and the width of the groove (12) expands outwards from the bottom of the groove.

6. The device for making an impression of a guide plate for preparing deciduous teeth according to any one of claims 1 to 5, characterized in that: After the laminated film is heated and softened using a dental vacuum laminator, the laminated film is imprinted and adsorbed onto the imprinting model (10) using vacuum negative pressure.

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