Device for perfusion of edentulous maxillary model
The device with integrated magnetic components simplifies the pouring process for maxillary edentulous jaw models, reducing human error and enhancing efficiency and accuracy in producing standard plaster models.
Patent Information
- Application Number
- CN202323629363.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-29
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2033-12-29
AI Technical Summary
The existing methods for pouring plaster models of maxillary edentulous jaws are complex, time-consuming, and prone to human errors, requiring extensive trimming and multiple steps, leading to inefficiencies and suboptimal model quality.
A device comprising a base and side walls with integrated magnetic components for pouring maxillary edentulous models, allowing for standardized operations and magnetic separation of the working model, ensuring accurate and efficient production of standard plaster models.
Enables the production of standard plaster models with reduced human error and increased efficiency by simplifying the process, improving the quality and accuracy of maxillary edentulous jaw models.
Smart Images
Figure CN222172309U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of denture production, in particular to a device for pouring an edentulous upper jaw model. Background Art
[0002] Maxillary edentulism refers to the complete loss of maxillary teeth due to various reasons. The jaw after maxillary edentulism is also called maxillary edentulous jaw.
[0003] For the restoration of maxillary edentulism, you can choose 1) implant-supported fixed restoration, such as bridge-type restoration or segmental bridge restoration supported by 6-8 implants in the maxilla; 2) implant-supported overdenture restoration, such as bar-type restoration supported by 4-6 implants in the maxilla; 3) mucosa-supported complete denture restoration.
[0004] The process of making maxillary full dentures is that the doctor selects a tray that matches the shape of the maxillary alveolar ridge, uses red paste + alginate or alginate in different proportions to make a negative mold of the maxillary alveolar ridge, mucosal transition, and soft and hard palate areas in the patient's mouth, also called the maxillary initial impression, and uses the maxillary initial impression and mold to pour the maxillary plaster model, and make individual trays on the maxillary plaster model to make the final impression and jaw position relationship. The maxillary final impression is used to pour the working model, and the technician arranges the teeth on the working model. After trial wear and adjustment, the glue is filled to complete the production of maxillary full dentures.
[0005] During the treatment of maxillary complete dentures, the doctor takes two impressions of the maxillary alveolar ridge, the initial and final ones, and pours two plaster models, the initial model and the final model. The maxillary model is a maxillary positive model formed by pouring model materials into the maxillary impression. From the maxillary edentulous jaw impression to the accurate maxillary plaster model, correct casting is the basis for making high-quality models. An accurate maxillary edentulous jaw model is the beginning of the successful production of maxillary complete dentures, so model casting plays a key role in the production of maxillary complete dentures. The maxillary model has specific geometric requirements, but its production process faces the technical bottleneck of complex model casting.
[0006] There are currently two methods for pouring plaster models: direct pouring and surrounding mold pouring. Both methods require a lot of trimming after demolding.
[0007] 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.
[0008] 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.
[0009] 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 wider edges and more inclined side walls. 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 put into 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. Utility Model Content
[0010] 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.
[0011] In order to overcome the shortcomings of the existing surrounding mold perfusion method, reduce human errors, and meet the needs of standardized operations, the utility model provides a device for perfusion of maxillary edentulous jaw models, 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, the holes are adapted to a magnetic chassis, and the magnetic chassis includes a turntable and a support seat; the top of the support seat is connected to the turntable through a bearing; the top of the support seat is a magnetic bottom plate with a magnetic suction sheet placed thereon; wherein the side walls are closed on all sides, and the base and the side walls enclose an internal space.
[0012] Preferably, according to the above-mentioned device for perfusion of an edentulous maxillary jaw model, the base (1) and the side wall (2) are integrated.
[0013] More preferably, according to the above-mentioned device for perfusion of maxillary edentulous jaw model, the internal space surrounded by the side wall (2) is adapted to the shape of the impression.
[0014] Further more preferably, according to the above-mentioned device for perfusion of maxillary edentulous jaw model, the internal space surrounded by the side wall (2) is larger than the impression.
[0015] Further more preferably, according to the above-mentioned device for perfusion of maxillary edentulous jaw model, the rear part of the side wall (2) is concave with high sides and low middle.
[0016] Further more preferably, according to the above-mentioned device for perfusion of maxillary edentulous jaw model, the rear part of the side wall (2) is concave with high sides and low middle; the depth of the highest part of the rear part of the side wall from the internal space of the base is 24-26mm.
[0017] Further more preferably, according to the above-mentioned device for perfusion of maxillary edentulous jaw model, the lower middle part of the rear part of the side wall (2) is flat and its length is 29-31mm.
[0018] Further more preferably, according to the above-mentioned device for perfusion of maxillary edentulous jaw model, the depth of the highest part of the front part of the side wall (2) from the internal space of the base is 7-9 mm.
[0019] Further more preferably, according to the above-mentioned device for perfusion of maxillary edentulous jaw model, the depth of the highest part of the front part of the side wall (2) from the internal space of the base is 8 mm.
[0020] Further more preferably, according to the above-mentioned device for perfusion of maxillary edentulous jaw model, the lower middle part of the front part of the side wall (2) is flat and its length is 19-21mm.
[0021] Further more preferably, according to the above-mentioned device for perfusion of maxillary edentulous jaw model, the lower middle part of the front part of the side wall (2) is flat and its length is 20mm.
[0022] Further more preferably, according to the above-mentioned device for perfusion of the edentulous maxillary jaw model, it is made of silicone rubber.
[0023] By using the device for pouring an edentulous maxillary model 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 device for pouring an edentulous maxillary model of the utility model, an edentulous maxillary standard plaster model can be obtained at one time, and the magnetic bottom 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 maxillary edentulous jaw model perfusion device of the utility model;
[0025] Figure 2a It is a top view of the magnetic base plate;
[0026] Figure 2b yes Figure 2a An oblique view of the magnetic base plate;
[0027] Figure 3 This is a state diagram after the magnetic base plate is assembled inside the base of the device for pouring the maxillary edentulous jaw model;
[0028] Figure 4 It is a magnetic sheet;
[0029] Figure 5 It is a three-dimensional diagram of the device for perfusion of the maxillary edentulous jaw model of the utility model after 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 maxillary 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 maxillary edentulous jaw model perfusion device of the utility model;
[0032] Figure 8 It is a front view of the base and side wall of the device for perfusion of the maxillary edentulous jaw model of the utility model integrated;
[0033] Fig. 9 It is a left view of the integrated base and side wall of the maxillary 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 maxillary edentulous jaw model perfusion device of the utility model;
[0035] Fig.11The utility model is an oblique view of the base and side walls of the device for perfusion of the upper edentulous jaw model 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] The utility model is described in detail below with reference to the accompanying drawings.
[0038] like Figure 1 , 2a , 2b, 3-11, wherein, Figure 1 It is a top view of the integrated base and side wall of the maxillary edentulous jaw model perfusion device of the utility model; Figure 2a This is a top view of the magnetic base. Figure 2b It is an oblique view of the magnetic base plate; Figure 3 This is a state diagram after the magnetic base plate is assembled in the internal space of the device for pouring the maxillary edentulous jaw model; Figure 4 It is a magnetic sheet; Figure 5 The utility model is a device for filling a maxillary edentulous jaw model. Figure 2a The magnetic base and Figure 4 A three-dimensional diagram of a magnetic sheet; Figure 6 It is a rear view of the integrated base and side wall of the maxillary edentulous jaw model perfusion device of the utility model; Figure 7 It is a bottom view of the integrated base and side wall of the maxillary edentulous jaw model perfusion device of the utility model; Figure 8 It is a front view of the base and side wall of the device for perfusion of the maxillary edentulous jaw model of the utility model integrated; Fig. 9 It is a left view of the integrated base and side wall of the maxillary edentulous jaw model perfusion device of the utility model; Fig.10 It is a right side view of the integrated base and side wall of the maxillary edentulous jaw model perfusion device of the utility model; Fig.11 It is an oblique view of the base and side wall of the device for pouring an edentulous maxillary jaw model of the utility model, wherein: Fig.11 The internal space of the device for perfusion of the maxillary edentulous jaw model shown in the figure has not yet been equipped with a magnetic base plate and a magnetic suction sheet.
[0039] Specifically, the utility model provides a device for pouring an edentulous maxillary jaw model, which comprises a base 1 and a side wall 2. The base 1 has an upper opening, a circular triangular hole 3 is provided at the lower part of the base, the hole 3 is adapted to fit a magnetic bottom plate 4, the side wall 2 is closed on all sides, and the base 1 and the side wall 2 enclose an internal space, such as Figure 3 or Fig.11The magnetic chassis 4 includes a turntable 5 and a support seat 6; 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, as shown in FIG. Figure 2a and 2b As shown. On the magnetic bottom plate 7 is placed Figure 4 The magnetic suction sheet 8 shown. In this way, the magnetic base plate 7 and the magnetic suction sheet 8 at the bottom of the mold can be used to achieve magnetic separation and resetting of the working model and the maxillary frame plaster.
[0040] The inner space enclosed by the side wall 2 is adapted to the shape of the stamp. Specifically, the inner space enclosed by the side wall 2 is larger than the stamp.
[0041] In a specific embodiment, the base 1 and side wall 2 of the device for pouring edentulous maxillary models of the utility model are an integrated cube, and its outer dimensions may be 50 mm in length, 45 mm in width, and 35 mm in height, and the taper of the four outer surfaces of the cube is about 8°. The top is open, and the bottom opening is a rounded triangle. The so-called "rounded triangle" means that it is a triangle as a whole, but the three corners are rounded. The maxillary impression is embedded into the interior of the cube from above to ensure that the edge of the impression is at least 5 mm away from the edge of the interior of the device of the utility model, and the bottom of the impression is at least 10 mm away from the bottom of the interior of the device of the utility model. The base 1 and side wall 2 of the device for pouring edentulous maxillary models of the utility model together enclose an internal space, and the upper opening is a plaster inlet. 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; the lower part of the base 1 is used 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 an edentulous maxillary jaw model of the present invention can be made of any suitable material, preferably silicone rubber.
[0042] In a more specific embodiment, in the device for perfusion of the maxillary edentulous jaw model of the utility model, the rear part of the side wall 2 is concave with high sides and low middle; the depth of the highest part of the rear part of the side wall 2 from the internal space of the base 1 is 24-26mm; wherein, the low middle part of the rear part of the side wall 2 is flat, and its length is 29-31mm. The depth of the highest part of the front part of the side wall 2 from the internal space of the base 1 is 7-9mm, preferably 8mm. The low middle part of the front part of the side wall 2 is flat, and its length is 19-21mm, preferably 20mm.
[0043] When using the device for pouring an edentulous maxillary jaw model of the utility model, Figure 2a Or 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 maxillary edentulous jaw model pouring device of the utility model. The impression with gypsum is buckled into the maxillary edentulous jaw model pouring device of the utility model with gypsum, and a gypsum model with both standard model size and a magnetic base plate 7 can be obtained, thereby greatly improving the quality and efficiency of model pouring, effectively avoiding the problem of gypsum base collapse, and making the model pouring more accurate and efficient.
[0044] 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 perfusion of an edentulous maxillary jaw model, comprising a base (1) and a side wall (2), wherein the upper portion of the base (1) is open, and a circular triangular hole (3) is formed at the lower portion of the base (1), wherein the hole (3) is adapted to fit a magnetic chassis (4), wherein the magnetic chassis (4) comprises a turntable (5) and a support seat (6); 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) on which a magnetic suction sheet (8) is placed; wherein, The side wall (2) is closed on all sides, and the base (1) and the side wall (2) enclose an internal space.
2. The device for perfusion of an edentulous maxillary jaw model according to claim 1, wherein: The base (1) and the side wall (2) are integral.
3. The device for perfusion of the edentulous maxillary jaw 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 perfusion of an edentulous maxillary jaw model according to claim 3, wherein: The inner space enclosed by the side wall (2) is larger than the mold.
5. The device for pouring an edentulous maxillary jaw model according to claim 1, wherein: The rear part of the side wall (2) is concave with high sides and low middle; the depth of the highest part of the rear part of the side wall (2) from the inner space of the base (1) is 24-26 mm.
6. The device for pouring an edentulous maxillary jaw model according to claim 5, wherein: The lower part in the middle of the rear part of the side wall (2) is flat, and its length is 29-31 mm.
7. The device for pouring an edentulous maxillary jaw model according to claim 2, wherein: The rear part of the side wall (2) is concave with high sides and low middle; the depth of the highest part of the rear part of the side wall (2) from the inner space of the base (1) is 24-26 mm.
8. The device for pouring an edentulous maxillary jaw model according to claim 7, wherein: The lower part in the middle of the rear part of the side wall (2) is flat, and its length is 29-31 mm.
9. The device for pouring an edentulous maxillary jaw model according to claim 3, wherein: The rear part of the side wall (2) is concave with high sides and low middle; the depth of the highest part of the rear part of the side wall (2) from the inner space of the base (1) is 24-26 mm.
10. The device for perfusion of an edentulous maxillary jaw model according to any one of claims 1 to 9, characterized in that: It is made of silicone rubber.