Device for perfusion of edentulous jaw model

Abstract

The utility model relates to a device for perfusion of an edentulous jaw model, which comprises a base (1) and a side wall (2), the upper part of the base (1) is open, the lower part of the base (1) is provided with a round triangular hole, the periphery of the base (1) is closed, the base (1) and the side wall (2) define an internal space, and the peripheral corner formed by the base (1) and the side wall (2) is arc-shaped or nearly arc-shaped; the depth from the rear portion of the side wall (2) to the inner space of the base is 29-31 mm, and the depth from the front portion of the side wall (2) to the inner space of the base (1) is 11-13 mm. The depth from the rear part of the side wall (2) of the device to the inner space of the base (1) and the depth from the front part of the side wall (2) to the inner space of the base are properly designed, so that the operation is convenient; and the periphery of the device for model perfusion is designed to be approximately elliptical, so that the holding operation is more convenient, a gypsum model with proper thickness and regular appearance can be obtained, and the gypsum polishing amount and the gypsum consumption are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of artificial teeth production, in particular to a device for pouring a mandibular edentulous jaw model. Background Art

[0002] Edentulosis refers to the state where all teeth in the mouth are completely lost due to periodontitis or caries, leaving no teeth in the mouth. Some people, such as the elderly, are in a state of edentulism. Mandibular edentulism refers to the state where all teeth in the mandibular mouth are completely lost due to periodontitis, caries, trauma and other reasons. The jawbone after the mandibular edentulism is also called mandibular edentulism. Mandibular edentulism refers to the state where all teeth in the mandibular mouth are completely lost due to periodontitis, caries, trauma and other reasons. The jawbone after the mandibular edentulism is also called mandibular edentulism. Patients can choose to have 4-6 implants for fixed restoration, 2-4 implants for coverage restoration, or traditional mucosa-supported full denture restoration according to their general condition, maxillary teeth conditions, anatomical conditions of the mandibular edentulism, economic factors, etc. Mandibular full denture restoration accounts for the majority.

[0003] To make a mandibular complete denture, the doctor uses alginate material with a certain water-powder ratio and good fluidity to make a negative mold of the mandibular alveolar ridge and mucosal transition, retromolar pad, mylohyoid ridge, tongue frenulum, frenulum of the lower lip and other anatomical structures, also called the mandibular initial impression. The initial impression is poured into a plaster model with a mold, and individual trays are made on the plaster model to make the final impression and jaw position relationship. The mandibular working model is poured with the mandibular final impression base mold, and the technician arranges the teeth on the mandibular working model. After the trial wear is correct, the mandibular complete denture is completed by filling with glue.

[0004] When repairing a mandibular complete denture, it is necessary to take two impressions of the patient's mandible, the initial impression and the final impression, and then pour two plaster models. The mandibular edentulous jaw plaster model is a positive mold formed by pouring the mixed plaster material into the mandibular alginate or silicone rubber impression. When repairing a mandibular complete denture, it is necessary to take two impressions of the patient's mandible, the initial impression and the final impression, and then pour two plaster models. The mandibular edentulous jaw plaster model is a positive mold formed by pouring the mixed plaster material into the mandibular alginate or silicone rubber impression. Mandibular complete dentures are made on accurate mandibular edentulous jaw models, and the model is the beginning of the success of the complete denture. From mandibular edentulous jaw impressions to accurate mandibular plaster models, correct model pouring is the basis for making high-quality models. Therefore, model pouring plays a vital role in the production of mandibular complete dentures. The buccal edge of the mandibular impression is relatively uniform, but the lingual edge presents an "S"-shaped line. The sublingual gland area, the mandibular lingual ridge, and the mylohyoid fossa have different thicknesses and heights. If you want to perfuse the mandibular model of an ideal shape, you will face a technical bottleneck with complex operations. Currently, there are two methods for perfusing plaster models: direct perfusion and surrounding mold perfusion. Both methods require a lot of trimming after demolding.

[0005] Direct infusion method: first put the plaster into the impression, buckle it on the plane, remove it after the plaster solidifies, roughly trim the thickness and side walls of the plaster model, and then put the plaster model on the metal base. Add more plaster on the metal base to make the front and back edges of the model flush with the metal base.

[0006] The molding method is to use materials to surround the periphery of the impression. This step is called molding. Both the initial model and the working model of the edentulous jaw can be cast. The molding method can obtain a plaster model with appropriate thickness and regular shape, reducing the amount of plaster grinding and the amount of plaster used. The principle of molding is to form a box shape around the impression, which includes two parts. One part is to form a model side table at the outer edge of the impression tissue surface, with a width greater than 5mm and a distance of 3mm from the edge of the impression. The other part forms a panel at the outer edge of the model side table, and the highest point of the impression at the upper edge of the panel is greater than 10mm. Commonly used molding methods include wax sheet molding, mold box molding, silicone rubber molding, etc. Utility Model Content

[0007] In order to overcome the shortcomings of the existing plaster model pouring method, the mandibular edentulous jaw model needs to be poured deeper, resulting in a large human error. In order to reduce human errors and meet the needs of standardized operations, the utility model provides a mandibular edentulous jaw model pouring device, which includes a base and side walls. The upper part of the base is open, and the lower part of the base is provided with circular triangular holes, which are closed on all sides. The base and the side walls form an internal space. The depth of the rear part of the side wall from the internal space of the base and the depth of the front part of the side wall from the internal space of the base are appropriately designed, which is convenient for operation. It is found that the periphery of the model pouring device is designed to be nearly elliptical, which is more convenient for holding and operation, so that a plaster model with appropriate thickness and regular appearance can be obtained, and the amount of plaster grinding and plaster consumption can be reduced.

[0008] Specifically, the utility model provides the following technical solutions.

[0009] A device for pouring a mandibular edentulous jaw model comprises a base (1) and a side wall (2); the base (1) is open at the top, a circular triangular hole is opened at the bottom of the base (1), and the base (1) is closed on all sides; the base (1) and the side wall (2) enclose an internal space; the outer peripheral corner formed by the base (1) and the side wall (2) is in an arc shape or a nearly arc shape; the depth of the rear part of the side wall (2) from the internal space of the base is 29-31 mm, and the depth of the front part of the side wall (2) from the internal space of the base is 11-13 mm.

[0010] Preferably, according to the aforementioned device for perfusion of an edentulous mandible model, the base (1) and the side wall (2) are integrated.

[0011] More preferably, according to the aforementioned device for perfusion of mandibular edentulous jaw models, the internal space enclosed by the side walls (1) is adapted to the shape of the impression.

[0012] More preferably, according to the aforementioned device for perfusion of mandibular edentulous jaw models, the internal space enclosed by the side wall (2) is larger than the impression, and when the impression is placed in the device, the distance between the edge of the impression and the edge of the device is at least 5 mm.

[0013] More preferably, according to the aforementioned device for pouring an edentulous mandibular model, a magnetic chassis (4) is installed at the bottom of the base (1); the magnetic chassis (4) includes a turntable (5) and a support seat (6).

[0014] More preferably, according to the aforementioned device for perfusion of mandibular edentulous jaw models, the top of the support seat (6) is connected to the turntable (5) via a bearing; and the top of the support seat (6) is a magnetic base plate (7).

[0015] More preferably, according to the aforementioned device for perfusion of mandibular edentulous jaw model, a magnetic suction sheet (8) is placed on the magnetic base plate.

[0016] More preferably, according to the aforementioned device for perfusion of mandibular edentulous jaw models, the rear portion of the side wall (2) is concave with high sides and low middle.

[0017] More preferably, according to the aforementioned device for perfusion of mandibular edentulous jaw models, the depth of the highest part of the rear portion of the side wall (2) from the internal space of the base is preferably 30 mm.

[0018] More preferably, according to the aforementioned device for perfusion of mandibular edentulous jaw models, the lower middle portion of the rear portion of the side wall (2) is flat, and its length is 29-31 mm, preferably 30 mm.

[0019] More preferably, according to the aforementioned device for perfusion of mandibular edentulous jaw models, the front portion of the side wall (2) is concave with high sides and low middle.

[0020] More preferably, according to the aforementioned device for perfusion of mandibular edentulous jaw models, the depth of the highest part of the front of the side wall (2) from the internal space of the base is preferably 12 mm.

[0021] More preferably, according to the aforementioned device for perfusion of mandibular edentulous jaw models, the lower middle part of the front part of the side wall (2) is flat, and its length is 19-21 mm, preferably 20 mm.

[0022] More preferably, according to the aforementioned device for perfusion of mandibular edentulous jaw model, it is made of silicone rubber.

[0023] By using the mandibular edentulous jaw model pouring device of the utility model, it is only necessary to follow the pouring steps to perform standardized operations, thereby improving the efficiency of making dental plaster models. By using the mandibular edentulous jaw model pouring device of the utility model, a standard mandibular plaster model of an edentulous jaw can be obtained at one time, and the depth of the rear of the side wall from the internal space of the base and the depth of the front of the side wall from the internal space of the base are appropriately designed, which is convenient for operation; it is found that the periphery of the model pouring device is designed to be nearly arc-shaped, which is more convenient for gripping and operation, thereby obtaining a plaster model with appropriate thickness and regular appearance, reducing the amount of plaster polishing and the amount of plaster used. In addition, in the preferred embodiment, the magnetic base plate and magnetic sheet at the bottom of the mold are used to achieve magnetic separation and resetting of the working model and the upper frame plaster. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a top view of the integrated base and side wall of the mandibular edentulous jaw model perfusion device of the utility model;

[0025] Figure 2a is a front view of a magnetic base plate in a specific embodiment;

[0026] Figure 2b yes Figure 2a An oblique view of the magnetic base plate;

[0027] Figure 3 The magnetic sheet is placed on Figure 2a State diagram of the center of the magnetic bottom plate;

[0028] Figure 4 It is a magnetic attraction sheet in a specific solution of the utility model;

[0029] Figure 5 It is a three-dimensional state diagram of a mandibular edentulous jaw model perfusion device in a specific solution of the utility model when the magnetic bottom plate and the magnetic suction sheet are assembled;

[0030] Figure 6 It is a rear view of the integrated base and side wall of the mandibular edentulous jaw model perfusion device of the utility model;

[0031] Figure 7 It is a bottom view of the integrated base and side wall of the mandibular edentulous jaw model perfusion device of the utility model;

[0032] Figure 8 It is a front view of the integrated base and side wall of the mandibular edentulous jaw model perfusion device of the utility model;

[0033] Fig. 9 It is a left view of the integrated base and side wall of the mandibular edentulous jaw model perfusion device of the utility model;

[0034] Fig.10 It is a right side view of the integrated base and side wall of the mandibular edentulous jaw model perfusion device of the utility model;

[0035] Fig.11 The utility model is an oblique view of the base and side walls of the mandibular edentulous jaw model perfusion device integrated with each other.

[0036] Among them, 1-base, 2-side wall, 3-circular triangular hole, 4-magnetic bottom plate, 5-turntable, 6-support base, 7-magnetic bottom plate, 8-magnetic suction sheet. DETAILED DESCRIPTION

[0037] In the plaster model pouring method for denture production, the direct pouring method requires mixing plaster twice, the operation steps are complicated, and the plaster solidifies twice, which requires a long working time. The plaster model obtained by the first pouring may not be of the right thickness. If it exceeds the thickness of the standard model, a lot of grinding of the bottom surface of the model is required. The plaster model obtained by the first pouring may have a wider edge and a more inclined side wall. It is often impossible to put it directly into the metal base plate. Generally, a lot of trimming is required. After it is trimmed to a suitable shape, it is placed in the metal base plate for a try. At this time, some plaster is mixed and placed on the bottom surface of the metal base plate and then the model that has been poured and trimmed for the first time is placed. At this time, if there is more plaster, it is also necessary to hold it with your hands or other tools to help fix the plaster. After the second plaster solidifies, it is removed, because the metal base plate only has the shape of the bottom and the height before and after the plaster, but the side wall of the plaster model still has no plasticity, so this step The plaster model needs to be trimmed again (mainly trimming the side wall) to get a standard model.

[0038] The mold casting method requires the preparation of a variety of different materials, including alginate for embedding, tape or wax sheets for encapsulating, and gypsum for plaster casting. Among them, alginate and gypsum need to be weighed in advance according to the proportion in the instructions, which is troublesome. There are many steps in the operation, and at least 3 steps are required to complete. The operation time of alginate for embedding is short, and sometimes it solidifies before it can be shaped to the ideal shape. After the plaster model is taken out, subsequent maintenance is inconvenient, and the tape sticks to the side wall of the mold box, which is difficult to clean. The choice of mold box is limited by the shape of the tray. Some trays, such as the initial impression tray, have a handle that cannot be removed in front, and you also need to choose a mold box with an opening in the front. The choice of mold box is limited by the size of the impression. It is necessary to prepare a variety of large and small boxes. If the mold box is too small, the plaster model side table is too narrow and it is easy to break during trimming. If the mold box is too large and the plaster model side table is too wide, it needs to be ground off with a grinder later, which increases the workload.

[0039] In order to overcome the shortcomings of the existing plaster model pouring method, reduce human errors and meet the needs of standardized operations, the inventor of the utility model comprises a base 1 and a side wall 2. The base 1 has an opening at the top and a circular triangular hole 3 at the bottom. The base 1 is closed on all sides. The base 1 and the side wall 2 enclose an internal space. The outer periphery formed by the base 1 and the side wall 2 is an arc shape or a nearly arc shape. The depth of the rear portion of the side wall 2 from the internal space of the base is 29-31 mm, and the depth of the front portion of the side wall 2 from the internal space of the base is 11-13 mm.

[0040] like Figure 1 , 2a , 2b, 3-11, Figure 1 It is a top view of the integrated base and side wall of the mandibular edentulous jaw model perfusion device of the utility model; Figure 2a is the front view of the magnetic base and Figure 2b It is an oblique stereogram of the magnetic base; Figure 4 It is a magnetic sheet; Figure 3 The magnetic sheet is placed on Figure 2a State diagram of the center of the magnetic bottom plate; Figure 5 yes Figure 3 The magnetic bottom plate and magnetic sheet are assembled together Figure 1 The three-dimensional state diagram of the mandible after the base space of the device for pouring the mandibular edentulous jaw model is shown; Figure 6 It is a rear view of the integrated base and side wall of the device for pouring the mandibular edentulous model; Figure 7 It is a bottom view of the integrated base and side wall of the mandibular edentulous jaw model perfusion device of the utility model; Figure 8 It is a front view of the integrated base and side wall of the mandibular edentulous jaw model perfusion device of the utility model; Fig. 9 It is a left view of the integrated base and side wall of the mandibular edentulous jaw model perfusion device of the utility model;

[0041] Fig.10 It is a right side view of the integrated base and side wall of the mandibular edentulous jaw model perfusion device of the utility model; Fig.11 This is an oblique view of the base and side wall of the mandibular edentulous jaw model perfusion device of the utility model, wherein: Fig.11 The interior space is unassembled Figure 2a The magnetic base and Figure 4 The magnetic sheet's previous state.

[0042] In the best embodiment of the utility model, the device for pouring a mandibular edentulous jaw model of the utility model comprises a base 1 and a side wall 2, the upper part of the base 1 is open, the lower part of the base 1 is provided with a circular triangular hole 3, and the surroundings are closed, the base 1 and the side wall 2 enclose an internal space, and the outer peripheral bending part formed by the base 1 and the side wall 2 is designed to be elliptical or nearly elliptical, so that the entire outer peripheral corner is in an arc shape or a nearly arc shape (that is, Figure 1 , Figure 5 The side wall 2 of the mandibular edentulous jaw model pouring device shown in the figure and the entire four corners or bends of the outer periphery of the side wall 2 are designed as follows Figure 7 and Fig.11 The side wall 2 is in a non-right angle shape (such as an arc shape or a nearly arc shape) for easy operation; the depth of the rear portion of the side wall 2 from the inner space of the base 1 is 29-31 mm, and the depth of the front portion of the side wall 2 from the inner space of the base 1 is 11-13 mm.

[0043] In a preferred embodiment, the base and the side walls are integral.

[0044] In a preferred embodiment, the base 1 and the side wall 2 of the mandibular edentulous jaw model pouring device of the utility model are an integrated cube, which is open at the top and has a rounded triangle at the bottom. The so-called "rounded triangle" means that the whole is a triangle, but the three corners are rounded. The mandibular impression is embedded into the cube from above to ensure that the edge of the impression is at least 5mm away from the edge of the interior of the present invention, and the bottom of the impression is at least 10mm away from the bottom of the interior of the present invention. The base 1 and side walls 2 of the mandibular edentulous jaw model pouring device of the present invention jointly enclose an internal space, the upper opening of which is the plaster inlet, and the enclosed internal space is adapted to the size and shape of the impression, and its size is slightly larger than the impression, so that the impression can be placed; wherein, the highest part of the rear of the side wall 2 is 29-31mm deep from the internal space of the base 1, preferably 30mm; the middle low part of the rear of the side wall 2 is flat, and its length is 29-31mm, preferably 30mm; the highest part of the front of the side wall 2 is 19-21mm deep from the internal space of the base 1, preferably 12mm; wherein, the middle low part of the front of the side wall 2 is flat, and its length is 19-21mm, preferably 20mm. Further in a specific embodiment, the height of the highest point of the rear part of the side wall 2 can be set to 40mm, the middle is concave, the horizontal length of the concave part is 30mm, the highest point is 29-31mm from the inner bottom, that is, the depth is 30mm, the concave part and the highest point are in a sloped transition, and the height difference between the highest point and the concave part can be 3-7mm, the height of the highest point of the front part of the side wall 2 can be set to 22mm, the middle is concave, the horizontal length of the concave part is 20mm, the highest point is 19-21mm from the inner bottom, that is, the depth is 12mm, the concave part and the highest point are in a sloped transition, and the height difference between the highest point and the concave part can be 3-5mm; in a preferred embodiment, the lower part of the base 1 is Figure 2a Or the magnetic chassis 4 shown in 2b is closed, and the magnetic chassis 4 includes a turntable 5 and a support seat 6. The top of the support seat 6 is a magnetic bottom plate 7, and the magnetic bottom plate 7 is connected to the turntable 5 through a bearing. Figure 3 The bottom plate of the base 1 is sealed with a magnetic bottom plate 4. Figure 3 It can be seen that the size and shape of the magnetic chassis 4 are adapted to the bottom plate of the inner space of the base 1. Figure 3 After assembly, place the magnetic base plate 7 as shown below: Figure 4 The magnetic sheet 8 shown has no limitation on its size and shape, and is preferably circular, and its size is preferably the same as that of the turntable 5. The device for pouring edentulous mandibular models of the present invention can be made of any suitable material, preferably silicone rubber.

[0045] In a preferred embodiment, when using the mandibular edentulous jaw model perfusion device of the utility model, Figure 2aOr the magnetic bottom plate 7 shown in 2b is placed in the hollow at the bottom of the base 1, and then the magnetic bottom plate 7 is placed as shown in Figure 4 The magnetic sheet 8 shown is used to pour part of the mixed gypsum into the impression and part into the mandibular edentulous jaw model pouring device of the utility model. The impression with gypsum is buckled into the mandibular edentulous jaw model pouring device of the utility model with gypsum, and a gypsum model with standard model size and a magnetic base plate 7 can be obtained, thereby greatly improving the quality and efficiency of model pouring and making the model pouring more accurate and efficient.

[0046] The above are only the best implementation methods of the present invention. Various changes and improvements can be made to the present invention without violating the spirit and principles of the present invention, and these changes and improvements are within the protection scope of the present invention.

Claims

1. A device for pouring a mandibular edentulous jaw model, comprising a base (1) and a side wall (2), characterized in that: The upper part of the base (1) is open, and a circular triangular hole (3) is opened at the lower part of the base (1). The base (1) and the side wall (2) are closed on all sides. The base (1) and the side wall (2) enclose an internal space. The outer corner formed by the base (1) and the side wall (2) is in an arc shape or a nearly arc shape. The depth of the rear part of the side wall (2) from the internal space of the base (1) is 29-31 mm, and the depth of the front part of the side wall (2) from the internal space of the base (1) is 11-13 mm.

2. The device for pouring an edentulous mandibular model according to claim 1, wherein: The base (1) and the side wall (2) are integral.

3. The device for pouring an edentulous mandibular model according to claim 2, wherein: The inner space enclosed by the side wall (2) is adapted to the shape of the stamp.

4. The device for pouring an edentulous mandibular model according to claim 3, wherein: The inner space enclosed by the side wall (2) is larger than the stamp, and when the stamp is placed in the device, the distance between the edge of the stamp and the edge of the device is at least 5 mm.

5. The device for pouring an edentulous mandibular model according to claim 4, wherein: A magnetic chassis (4) is installed at the bottom of the base (1); the magnetic chassis (4) comprises a turntable (5) and a support seat (6).

6. The device for pouring an edentulous mandibular model according to claim 5, wherein: The top of the support seat (6) is connected to the turntable (5) via a bearing; the top of the support seat (6) is a magnetic bottom plate (7).

7. The device for pouring an edentulous mandibular model according to claim 6, wherein: A magnetic suction sheet (8) is placed on the magnetic bottom plate (7).

8. The device for pouring an edentulous mandibular model according to claim 1, wherein: The rear part of the side wall (2) is in a concave shape with high sides and low middle.

9. The device for pouring an edentulous mandibular model according to claim 1, wherein: The front part of the side wall (2) is in a concave shape with high sides and low middle.

10. The device for pouring an edentulous mandibular model according to any one of claims 1 to 9, wherein: It is made of silicone rubber.

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