Porcelain crown with alloy support

Abstract

The utility model relates to the technical field of baked porcelain crowns, and discloses a baked porcelain crown with an alloy support, which comprises a baked porcelain crown main body arranged outside a base tooth, a first positioning groove is arranged on the upper surface of the base tooth, and a plurality of second positioning grooves are arranged on the left side and the right side of the first positioning groove in the base tooth. A positioning mechanism is arranged on the upper surface of the interior of the porcelain crown body, the positioning mechanism comprises a positioning column, a fixing block is installed at the upper end of the positioning column, and a fixing plate is installed in the positioning column; according to the utility model, the interior of the porcelain crown main body is coated with the adhesive, so that the porcelain crown main body and the base teeth are fixed together; in the mounting process, a positioning block in the positioning mechanism is extruded to be pressed into a positioning column, and when the positioning block right faces a second positioning groove, the positioning block is clamped into the second positioning groove through the elastic force of a spring, so that the porcelain crown body and the base tooth are fixed together, and the mounting firmness of the porcelain crown body and the base tooth is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of porcelain crowns, in particular to a porcelain crown with an alloy bracket. Background Art

[0002] Porcelain crowns are a widely used tooth restoration technology. They use cast precious metals as the supporting core in the area of ​​defective or missing teeth, and then use porcelain on the outside to achieve the color and function of real teeth. They have the advantages of beauty, durability and good functional restoration. During the installation of existing metal porcelain crowns, the metal porcelain crowns are fixed to the teeth with adhesives. The connection method is relatively simple, and the porcelain teeth may fall off when chewing harder foods.

[0003] A Chinese patent discloses a new type of metal porcelain crown (authorization announcement number CN217611508U). When using this patented technology, the implant base is installed on the base tooth, and the adhesive is injected into the storage column, and the porcelain tooth body is inserted into the base tooth as a whole. The pressing block first enters the interior of the storage column, squeezes the adhesive to fill the opposite side of the storage column and the pressing block, and flows to the opposite side of the hollow column and the storage column. By setting a silicone block, the displacement distance of the hollow column is limited and the hollow column is clamped in the implant base, so that the interior of the porcelain tooth body and the base tooth are fixed, avoiding a single external installation, and having the advantage of reinforcing the metal porcelain crown; however, it has certain disadvantages: its adhesive only exists between the storage column and the hollow column, and most areas in the alveolar socket have no adhesive. Secondly, it uses silicone blocks to fix the interior of the porcelain tooth body and the base tooth, and the clamping between the silicone blocks is not firm and is easily deformed after being subjected to force. Therefore, the firmness of the porcelain tooth body and the base tooth after being fixed is not reliable. Utility Model Content

[0004] The purpose of the utility model is to provide a porcelain crown with an alloy bracket to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A porcelain crown with an alloy bracket comprises a porcelain crown body installed on the outside of a base tooth, a first positioning groove is formed on the upper surface of the base tooth, and a plurality of second positioning grooves are formed on the left and right sides of the first positioning groove inside the base tooth, a positioning mechanism is provided on the inner upper surface of the porcelain crown body, the positioning mechanism comprises a positioning column, a fixing block is installed on the upper end of the positioning column, and a fixing plate is installed inside the positioning column, and a plurality of positioning members are provided on the left and right side surfaces of the fixing plate.

[0007] As a further solution of the utility model: the porcelain crown body includes a porcelain layer, and an alloy support layer is installed on the inner surface of the porcelain layer.

[0008] As a further solution of the utility model: the positioning member includes a positioning block, a slide plate is installed on the outside of one end of the positioning block, a spring is installed on the surface of one side of the slide plate, and the four corners of the slide plate are movably connected with slide rods.

[0009] As a further solution of the utility model: the positioning column is located inside the first positioning groove, and the upper end of the fixing block is installed on the inner upper surface of the porcelain crown body.

[0010] As a further solution of the present invention: the material of the alloy support layer is cobalt-chromium alloy.

[0011] As a further solution of the utility model: the positioning block movably penetrates one side surface of the positioning column, the side surface of the positioning block away from the positioning column is an arc-shaped surface, the lower surface and the upper surface of the positioning block are both horizontal planes, and the horizontal length of the lower surface of the positioning block is smaller than the horizontal length of the upper surface, the positioning block is located inside the second positioning groove, one end of the spring is connected to the fixed plate, one end of the sliding rod is connected to the inner surface of the positioning column, and the other end of the sliding rod is connected to the fixed plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model fixes the porcelain crown body and the base tooth together by applying adhesive to the inside of the porcelain crown body; during the installation process, the positioning block in the positioning mechanism is squeezed and pressed into the inside of the positioning column, and when the positioning block is directly opposite to the second positioning groove, the positioning block is clamped into the second positioning groove by the elastic force of the spring, thereby fixing the porcelain crown body and the base tooth together, thereby increasing the firmness of the porcelain crown body and the base tooth after installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of a porcelain crown with an alloy support;

[0015] Figure 2 is a cross-sectional view of a porcelain crown with an alloy frame;

[0016] Figure 3 for Figure 2 A magnified view of middle;

[0017] Figure 4 It is a structural schematic diagram of a positioning mechanism in a porcelain crown with an alloy support;

[0018] Figure 5 The present invention is a cross-sectional view of a positioning mechanism in a porcelain crown having an alloy support.

[0019] In the figure: 1. Porcelain crown body; 2. Base tooth; 3. Porcelain layer; 4. Alloy bracket layer; 5. First positioning groove; 6. Second positioning groove; 7. Positioning mechanism; 8. Positioning column; 9. Fixing block; 10. Fixing plate; 11. Positioning piece; 12. Positioning block; 13. Slide plate; 14. Spring; 15. Sliding rod. DETAILED DESCRIPTION

[0020] See also Figure 1 and Figure 2 In an embodiment of the utility model, a porcelain crown with an alloy support comprises a porcelain crown body 1 installed outside a base tooth 2, the porcelain crown body 1 comprises a porcelain layer 3, an alloy support layer 4 is installed on the inner surface of the porcelain layer 3, and the material of the alloy support layer 4 is a cobalt-chromium alloy;

[0021] After applying adhesive to the inside of the porcelain crown body 1, the porcelain crown body 1 is put on the outside of the base tooth 2 for fixation; the porcelain layer 3 is sintered at high temperature on the outside of the alloy support layer 4, and the alloy support layer 4 is used to increase the strength of the porcelain crown.

[0022] exist Figures 2 to 5 In the figure: the upper surface of the base tooth 2 is provided with a first positioning groove 5, and the inside of the base tooth 2 is provided with a plurality of second positioning grooves 6 on both sides of the first positioning groove 5. The inner upper surface of the porcelain crown body 1 is provided with a positioning mechanism 7, and the positioning mechanism 7 includes a positioning column 8, and the positioning column 8 is located inside the first positioning groove 5. A fixing block 9 is installed on the upper end of the positioning column 8, and the upper end of the fixing block 9 is installed on the inner upper surface of the porcelain crown body 1. A fixing plate 10 is installed inside the positioning column 8, and a plurality of positioning members 11 are provided on the left and right surfaces of the fixing plate 10. The positioning member 11 includes a positioning block 12, and the positioning block 12 is movable through the positioning column 8. The side surface of the positioning column 8 is penetrated, and the side surface of the positioning block 12 away from the positioning column 8 is an arc surface. The lower surface and the upper surface of the positioning block 12 are both horizontal planes, and the horizontal length of the lower surface of the positioning block 12 is smaller than the horizontal length of the upper surface. The positioning block 12 is located inside the second positioning groove 6, and a slide plate 13 is installed on the outside of one end of the positioning block 12. A spring 14 is installed on one side surface of the slide plate 13, and one end of the spring 14 is connected to the fixed plate 10. The four corners of the slide plate 13 are movably connected with a slide rod 15, one end of the slide rod 15 is connected to the inner surface of the positioning column 8, and the other end of the slide rod 15 is connected to the fixed plate 10;

[0023] The diameter of the first positioning groove 5 is slightly larger than the diameter of the positioning column 8, and the lower surface of the positioning block 12 is located in the positioning column 8 and does not exceed the outer surface of the positioning column 8; in the process of the porcelain crown body 1 being sleeved on the outside of the base tooth 2, the positioning block 12 is squeezed through the arc surface and pressed into the interior of the positioning column 8. When the positioning block 12 is stuck in the second positioning groove 6, the porcelain crown body 1 and the base tooth 2 are fixed together.

[0024] The working principle of the utility model is as follows: when in use, the staff applies adhesive to the inside of the porcelain crown body 1, and then puts the porcelain crown body 1 on the outside of the base tooth 2 for fixing. In this process, the positioning block 12 is squeezed into the inside of the positioning column 8 through the arc surface. When the positioning block 12 is directly opposite to the second positioning groove 6, the positioning block 12 will extend and move into the second positioning groove 6, thereby fixing the porcelain crown body 1 and the base tooth 2 together through the positioning mechanism 7.

[0025] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A porcelain crown with an alloy frame, comprising a porcelain crown body (1) mounted outside a base tooth (2), characterized in that: The upper surface of the base tooth (2) is provided with a first positioning groove (5), and the interior of the base tooth (2) is provided with a plurality of second positioning grooves (6) on both the left and right sides of the first positioning groove (5). The upper surface of the interior of the porcelain crown body (1) is provided with a positioning mechanism (7), and the positioning mechanism (7) comprises a positioning column (8), a fixing block (9) is installed at the upper end of the positioning column (8), and a fixing plate (10) is installed inside the positioning column (8), and a plurality of positioning members (11) are provided on both the left and right side surfaces of the fixing plate (10).

2. The porcelain crown with alloy support according to claim 1, characterized in that: The porcelain crown main body (1) comprises a porcelain layer (3), and an alloy support layer (4) is mounted on the inner surface of the porcelain layer (3).

3. The porcelain crown with alloy support according to claim 1, characterized in that: The positioning member (11) comprises a positioning block (12), a slide plate (13) is externally mounted on one end of the positioning block (12), a spring (14) is mounted on one side surface of the slide plate (13), and four corners of the slide plate (13) are movably connected and penetrated by slide rods (15).

4. The porcelain crown with alloy support according to claim 1, characterized in that: The positioning column (8) is located inside the first positioning groove (5), and the upper end of the fixing block (9) is mounted on the inner upper surface of the porcelain crown body (1).

5. The porcelain crown with alloy support according to claim 2, characterized in that: The alloy support layer (4) is made of cobalt-chromium alloy.

6. The porcelain crown with alloy support according to claim 3, characterized in that: The positioning block (12) movably penetrates a side surface of the positioning column (8); a side surface of the positioning block (12) away from the positioning column (8) is an arc-shaped surface; a lower surface and an upper surface of the positioning block (12) are both horizontal surfaces; and a horizontal length of the lower surface of the positioning block (12) is smaller than a horizontal length of the upper surface; the positioning block (12) is located inside the second positioning groove (6); one end of the spring (14) is connected to the fixed plate (10); one end of the sliding rod (15) is connected to the inner surface of the positioning column (8), and the other end of the sliding rod (15) is connected to the fixed plate (10).

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