Composite abutment embedded in ceramic dental crown

Abstract

The utility model belongs to the technical field of oral medical instruments, discloses a composite abutment embedded in a ceramic dental crown, and adopts the specific technical scheme that the composite abutment comprises a first abutment and a second abutment, the first abutment is connected with the second abutment through a middle part, the middle part is of a cylindrical structure, the first abutment is of a frustum-shaped structure, and the second abutment is of a frustum-shaped structure. According to the composite abutment, the first abutment is in smooth connection with the middle part, a clamping table is not formed between the first abutment and the middle part, after the composite abutment is arranged in a reserved hole, the first abutment is clamped in the middle part, and the second abutment is clamped between the first abutment and the middle part. When the dental crown needs to be dismantled, the smooth structure cannot generate excessive adhesion and clamping stagnation with gingival flesh on the two sides, the composite abutment can be easily taken out from holes of the gingiva, damage to the gingiva of a patient in the dismantling process of the composite abutment is reduced, discomfort brought to the patient is reduced to the minimum, and the dental crown can be widely applied and popularized.

Description

Technical Field

[0001] This utility model belongs to the field of oral medical device technology, specifically relating to a composite abutment embedded in a ceramic dental crown. Background Technology

[0002] In modern life, since its clinical application, porcelain crowns have become the primary method for treating tooth loss due to their excellent biocompatibility, wear and corrosion resistance, and natural and lifelike color. Porcelain crowns offer higher corrosion resistance, better biocompatibility, and are less prone to black gums or bleeding gums, making them safe, reliable, and relatively inexpensive. The procedure involves first implanting an implant into the alveolar bone in the edentulous area, and then attaching a healing cap to the implant. A composite abutment is then implanted within the porcelain crown. During installation, the healing cap is removed, and the porcelain crown is snapped into place in the corresponding position. The composite abutment is placed in the hole where the healing cap was originally located, and a screw is rotated to connect the composite abutment to the corresponding implant, thus positioning the porcelain crown.

[0003] like Figure 5 As shown, existing composite abutments are all stepped structures, with one end being a large-diameter end and the other end a small-diameter end, forming a step between them. Due to differences in individual tooth structure, the step of the composite abutment in some porcelain crowns may be exposed. After the crown is installed, the step of the composite abutment will be placed in the pre-drilled hole. Due to prolonged wear, the step will become stuck in the pre-drilled hole due to the body's self-healing mechanism. When it is necessary to remove the porcelain crown, the step is stuck in the flesh and difficult to remove, causing great discomfort and pain to the patient, and causing significant damage to the gingival healing surface. Utility Model Content

[0004] To address the technical problems existing in the prior art, this utility model provides a composite abutment embedded in a ceramic dental crown, which reduces patient discomfort during crown removal through a reasonable structural layout.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a composite abutment embedded in a ceramic dental crown, comprising a first abutment and a second abutment, the first abutment and the second abutment being connected by a middle part, the middle part being a cylindrical structure, the first abutment being a frustum-shaped structure, the top diameter of the first abutment being smaller than the bottom diameter of the first abutment, the bottom of the first abutment being smoothly connected to the middle part, and the second abutment being smoothly connected to the middle part.

[0006] The first end of the second base is connected to the middle part, and the diameter of the first end is the same as the diameter of the middle part. The diameter of the second end of the second base is smaller than the diameter of the middle part, and the first end and the second end are smoothly connected.

[0007] The second abutment is a cylindrical structure, and its diameter is the same as that of the middle part.

[0008] The second base is a frustum-shaped structure. The top diameter of the second base is larger than the bottom diameter of the second base, and the top diameter of the second base is the same as the diameter of the middle part.

[0009] Compared with the prior art, the specific advantages of this invention are as follows: This invention smoothly connects the first abutment to the middle part, without forming a jamming mechanism between them. After the composite abutment is placed in the pre-drilled hole, when the crown needs to be removed, the smooth structure will not cause excessive adhesion or jamming with the gingiva on both sides. The composite abutment can be easily removed from the hole in the gingiva, reducing damage to the patient's gingiva during removal and minimizing discomfort. In addition, the crown can be easily reinstalled, allowing for multiple disassemblies and installations, and can be widely promoted and applied. Attached Figure Description

[0010] Figure 1 This is a structural schematic diagram of the present invention, and also a structural schematic diagram of Embodiment 1.

[0011] Figure 2 This is a schematic diagram of the structure of Example 2.

[0012] Figure 3 This is a schematic diagram of the structure of Example 3.

[0013] Figure 4 This is a schematic diagram of the installation structure of a traditional composite base.

[0014] Figure 5 This is a schematic diagram of a traditional composite base.

[0015] Figure 6 This is a schematic diagram of the installation layout of a traditional composite abutment in a denture crown.

[0016] In the diagram, 1 is the first abutment, 2 is the second abutment, 21 is the first end, 22 is the second end, 3 is the middle part, 4 is the denture crown, and 5 is the traditional abutment. Detailed Implementation

[0017] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. Example

[0018] A composite abutment embedded in a ceramic dental crown includes a first abutment 1 and a second abutment 2. The first abutment 1 and the second abutment 2 are connected by an intermediate portion 3. The intermediate portion 3 is a cylindrical structure, and the first abutment 1 is a frustum-shaped structure. The top diameter of the first abutment 1 is smaller than the bottom diameter of the first abutment 1. The bottom of the first abutment 1 is smoothly connected to the intermediate portion 3, and the second abutment 2 is smoothly connected to the intermediate portion 3.

[0019] The first end 21 of the second base 2 is connected to the middle part 3. The diameter of the first end 21 is the same as the diameter of the middle part 3. The diameter of the second end 22 of the second base 2 is smaller than the diameter of the middle part 3. The first end 21 and the second end 22 are smoothly connected. The outer surface formed between the first end 21 and the second end 22 is an arc-shaped surface.

[0020] In actual operation, the composite abutment is placed inside the denture crown 4. Even if the first abutment 1 protrudes to the outside of the denture crown 4, the exposed end of the composite abutment is placed in the cavity of the gingiva. The smooth structure will not form excessive adhesion and damage to the gingiva on both sides. Compared with the stepped structure of the traditional abutment 5, the composite abutment in this embodiment will minimize the discomfort to the patient. Example

[0021] The difference between this embodiment and Embodiment 1 lies in the shape of the second base 2. In this embodiment, the second base 2 is a cylindrical structure, and the diameter of the second base 2 is the same as the diameter of the middle part 3. The second base 2 and the middle part 3 form an integrated columnar structure. The integrated structure is easier to install and has better stability. Example

[0022] The difference between this embodiment and Embodiment 1 lies in the shape of the second base 2. In this embodiment, the second base 2 is a frustum-shaped structure. The top diameter of the second base 2 is larger than the bottom diameter of the first base 1. The top diameter of the second base 2 is the same as the diameter of the middle part 3. Both ends of the composite base are frustum-shaped structures, making the installation of the composite base more convenient.

[0023] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model shall be included within the scope of the present utility model.

Claims

1. A composite abutment embedded in a ceramic crown, characterized in that, It includes a first base (1) and a second base (2), the first base (1) and the second base (2) are connected by a middle part (3), the middle part (3) is a cylindrical structure, the first base (1) is a frustum-shaped structure, the top diameter of the first base (1) is smaller than the bottom diameter of the first base (1), the bottom of the first base (1) is smoothly connected to the middle part (3), and the second base (2) is smoothly connected to the middle part (3).

2. The composite abutment embedded in a ceramic crown according to claim 1, wherein, The first end (21) of the second base (2) is connected to the middle part (3). The diameter of the first end (21) is the same as the diameter of the middle part (3). The diameter of the second end (22) of the second base (2) is smaller than the diameter of the middle part (3). The first end (21) and the second end (22) are smoothly connected.

3. The composite abutment embedded in a ceramic crown according to claim 1, wherein, The second base (2) is a cylindrical structure, and the diameter of the second base (2) is the same as the diameter of the middle part (3).

4. The composite abutment embedded in a ceramic crown according to claim 1, wherein, The second base (2) is a frustum-shaped structure. The top diameter of the second base (2) is greater than the bottom diameter of the second base (2). The top diameter of the second base (2) is the same as the diameter of the middle part (3).

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