Novel planting restoration ceramic abutment

Abstract

The utility model discloses a novel implant repair ceramic abutment, which relates to the implant abutment field, and comprises a connecting part, a gum penetrating part and a bonding part, one end of the gum penetrating part is connected with the connecting part, the other end of the gum penetrating part is connected with the bonding part, the connecting part is used for being installed on an implant, the bonding part is used for installing a dental crown, and the connecting part is used for connecting the dental crown with the gum penetrating part. The abutment further comprises a channel structure for placing screws; and a plurality of concave holes are formed in the surface of the bonding part. According to the utility model, the combined body comprising the connecting part, the gum penetrating part and the bonding part is arranged, and a plurality of concave holes are formed in the bonding part, so that the bonding area is increased, the bonding strength between the gum penetrating part and an upper dental crown is improved, sand blasting is not needed, and damage to the gum penetrating surface and a shoulder caused by sand blasting is avoided.

Description

Technical Field

[0001] The utility model relates to the field of implant bases, in particular to a novel implant repair ceramic base. Background Art

[0002] Oral implant restoration is to implant the implant into the alveolar bone to replace the missing natural tooth root, and connect the upper restoration through the abutment. The abutment and the upper restoration can be connected by screws or adhesives. For the former, it is necessary to introduce a secondary screw, that is, the restoration screw. In this scenario, a secondary channel structure needs to be reserved on the primary screw (central screw), which will reduce the strength of the primary screw and increase the connection interface, resulting in a greater risk of restoration failure and increased maintenance costs in the later stage. Therefore, at present, the abutment and the upper restoration are mainly connected by adhesives.

[0003] Before bonding, the abutment surface needs to be sandblasted to increase the bonding area. However, this operation may cause the high-polished state of the abutment's gingival area to be destroyed; and improper operation may cause damage to the connection surface between the abutment and the implant, which in turn causes a micro gap between the abutment and the implant.

[0004] In view of this, this application is hereby filed. Utility Model Content

[0005] The utility model aims to provide a novel ceramic abutment for implant restoration, which is configured as a combination including a connecting portion, a gingival portion and a bonding portion, and a plurality of recessed holes are arranged on the bonding portion, so as to solve the problem in the prior art that sandblasting on the abutment surface causes the gingival portion to be destroyed and the connecting surface between the abutment and the implant to be damaged.

[0006] The embodiment of the utility model is achieved through the following technical scheme: the embodiment of the utility model provides a new type of implant restoration ceramic base, including a connecting part, a gingival part and a bonding part, one end of the gingival part is connected to the connecting part, and the other end is connected to the bonding part, the connecting part is used to be installed on the implant, the bonding part is used to install the crown, the base also includes a channel structure for placing screws; a plurality of recessed holes are arranged on the surface of the bonding part.

[0007] Preferably, the channel structure passes through the connecting portion, the gingival portion and the bonding portion simultaneously.

[0008] Preferably, a plurality of protrusions are provided on the side wall of the connecting portion.

[0009] Preferably, the protrusion is in the shape of a convex tooth.

[0010] Preferably, the cross-sectional outer contour of the connecting portion is a polygonal shape.

[0011] Preferably, the outer convex surface of the protrusion is arc-shaped.

[0012] Preferably, the protrusion is arranged at an end of a side wall of the connecting portion, and the protrusion is arranged at a connection between the connecting portion and the gingival portion.

[0013] Preferably, the cross-sectional size of the connecting portion gradually decreases from one end where the connecting portion is connected to the gingival portion to the other end.

[0014] Preferably, the angle between the side surface of the connecting portion and its axis is 0°-30°.

[0015] Preferably, the cross-section of the gingival penetration portion is a shape selected from the group consisting of a round triangle, a vertical ellipse, and a round quadrilateral.

[0016] Compared with the prior art, the embodiments of the present invention have the following advantages and beneficial effects:

[0017] 1. A novel implant restoration ceramic abutment provided by an embodiment of the utility model connects a connecting portion to one end of a transgingival portion, and the other end of the transgingival portion is connected to a bonding portion. When the abutment is installed, the connecting portion is connected to the implant. The transgingival portion is located at the gingival position and can be completely hidden in the gingiva, or partially hidden in the gingiva and partially exposed. The bonding portion is used to install a crown. After the crown is installed, the base surface of the end portion is flush with the shoulder end of the bonding portion. In the embodiment of the utility model, a channel structure is also included. The channel structure is used to place screws. The screws can stably install the entire abutment in the implant. The bonding portion is connected to the crown by bonding. In the embodiment of the utility model, a plurality of recessed holes are arranged on the bonding portion, which can increase the connection area between the bonding portion and the crown. There is no need to sandblast the surface of the abutment, thereby avoiding damage to the surface of the transgingival portion or the shoulder end of the bonding area, and also avoiding damage to the connection surface between the abutment and the implant.

[0018] 2. The embodiment of the utility model can prevent the abutment from rotating relative to the implant by providing a plurality of protrusions on the side of the connecting portion, thereby improving the installation stability between the abutment and the implant. The shape of the protrusions can be convex teeth, arc shape, etc., which is helpful for quickly positioning the position relationship between the abutment and the implant during installation.

[0019] 3. Set the side of the connection part to an angle of 0°-30° with its axis to establish a tapered connection, which is beneficial to the stability of the base.

[0020] In general, a new type of implant restoration ceramic abutment provided by an embodiment of the utility model is configured as a combination of a connecting part, a transgingival part and a bonding part, and a plurality of recessed holes are arranged on the bonding part to increase the bonding area, thereby improving the bonding strength with the upper crown, eliminating the need for sandblasting, and avoiding damage to the transgingival surface and the shoulder caused by sandblasting. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A schematic diagram of the structure of a novel implant restoration ceramic abutment provided by an embodiment of the utility model;

[0023] Figure 2 A schematic diagram of the installation structure of a novel implant restoration ceramic abutment provided by an embodiment of the utility model;

[0024] Figure 3 A protruding structure 1 provided in an embodiment of the utility model;

[0025] Figure 4 The second protrusion structure provided in the embodiment of the utility model;

[0026] Figure 5 The third protrusion structure provided in the embodiment of the utility model;

[0027] Figure 6 The convex structure 4 provided in the embodiment of the utility model;

[0028] Figure 7 The convex structure 5 provided in the embodiment of the utility model;

[0029] Figure 8 The convex structure 6 provided in the embodiment of the utility model;

[0030] Fig. 9 A cross-sectional structure of a connection portion without protrusions provided in an embodiment of the utility model;

[0031] Fig.10 A schematic diagram of the angle between the connecting portion and the axis provided in an embodiment of the utility model;

[0032] Fig.11 A morphological diagram of a circular triangle transgingival area applied to anterior teeth provided in an embodiment of the utility model;

[0033] Fig.12 A morphological diagram of a vertical elliptical gingival area applied to the premolar area provided in an embodiment of the utility model;

[0034] Fig.13 A morphological diagram of a rounded quadrilateral transgingival area applied to the molar area provided in an embodiment of the utility model;

[0035] Fig.14A schematic diagram of a round right-angle shoulder structure provided in an embodiment of the utility model;

[0036] Fig.15 A schematic diagram of a blade-shaped or feather-shaped edge shoulder structure provided in an embodiment of the utility model;

[0037] Fig.16 A schematic diagram of the bonding structure of a crown and an abutment provided in an embodiment of the utility model;

[0038] Fig.17 A structural diagram of a connection portion provided in an embodiment of the utility model when the connection portion is a metal substrate;

[0039] Fig.18 This is a diagram of the installation structure of the connection part provided in the embodiment of the utility model with the implant when the connection part is a metal base.

[0040] Marks and corresponding parts names in the attached drawings:

[0041] 1-connecting part, 2-penetrating part, 3-bonding part, 4-shoulder end, 5-channel structure, 6-screw, 7-recess, 8-protrusion, 9-crown, 10-implant, 11-limiting part, 12-metal base. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. The components of the embodiment of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0043] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0045] In the description of the present invention, it should be noted that the terms "first", "second", "third", etc. are only used for partial description and cannot be understood as indicating or implying relative importance.

[0046] Example

[0047] like Figure 1 , Figure 2 and Fig.16 As shown, an embodiment of the utility model provides a novel ceramic abutment for implant restoration, comprising a connecting portion 1, a gingival portion 2 and a bonding portion 3, wherein the connecting portion 1 is the portion where the abutment is connected to the implant 10, to ensure a firm connection with the implant 10, and the gingival portion 2 is the portion where the abutment passes through the gums to the oral cavity or is flush with the end face of the gums, and aesthetics and biocompatibility are very important to ensure a harmonious transition with the gums, and the existing abutment material is mainly titanium and titanium alloy, and the aesthetic performance is relatively poor, because when it is applied to a thin gingival biotype site, the soft tissue will show metallic gray, and when the upper restoration is thin, the metallic gray will also show, therefore, a ceramic material can be selected to make the gingival portion 2 and the bonding portion 3, which is beneficial to maintaining a good aesthetic effect in a thin gingival biotype site, and maintaining its aesthetic effect when used in conjunction with a thinner upper crown 9, to avoid the occurrence of gray see-through phenomenon. Exemplarily, the bonding portion 3 includes a shoulder end 4, one end of the gingival portion 2 is connected to the connecting portion 1, and the other end is connected to the shoulder end 4, the connecting portion 1 is used to be installed on the implant 10, and the bonding portion 3 is used to install the crown 9. The base also includes a channel structure 5, and a screw 6 is arranged in the channel structure 5. The screw 6 can fix the base on the implant 10; a plurality of recessed holes 7 are arranged on the surface of the bonding portion 3.

[0048] Specifically, the channel structure 5 inside the base allows the screw 6 to pass through, providing a mechanical fixing method that can ensure the fixing force between the base and the implant 10. During the installation of the base and the implant 10, the depth of the screw 6 extending into the implant 10 is greater than the depth of the connecting portion 1 extending into the implant 10. The bonding portion 3 is a portion used to connect with the crown 9. The embodiment of the utility model uses an adhesive to fix the crown 9. The bonding strength and durability between the bonding portion 3 and the crown 9 are very important. In the prior art, before bonding, the base surface needs to be sandblasted to increase the bonding area, but this operation may cause the high-blasting state of the base gingival area to be destroyed, and improper operation may cause damage to the connection surface between the base and the implant 10, which in turn causes a micro gap between the base and the implant 10. Therefore, in the embodiment of the utility model, a plurality of concave holes 7 on the surface of the bonding portion 3 are used to increase the contact area between the adhesive and the base, thereby improving the firmness of the bonding. In addition, the concave holes 7 also help the adhesive to better penetrate into the base surface to form a stronger bond. In the embodiment of the utility model, the provision of the concave hole 7 increases the bonding area, thereby improving the bonding strength with the upper crown 9, eliminating the need for sandblasting, thereby avoiding damage to the gingival surface and the shoulder caused by sandblasting.

[0049] In order to improve the overall stability of the abutment and the connection stability with the implant 10, the channel structure 5 can be set to simultaneously penetrate the connection part 1, the gingival part 2 and the bonding part 3. When one end of the screw 6 is connected to the implant 10, the other end is located in the channel structure 5 of the bonding part 3. This structure allows the screw 6 to connect the connection part 1, the gingival part 2 and the bonding part 3 in series, increasing the force application area of ​​the screw 6 on the entire abutment, improving the installation stability of the entire abutment and the stability of its own structure. Preferably, the axis of the channel structure 5 coincides with the axis of the abutment, and the outer dimensions of the screw 6 match the inner dimensions of the channel structure 5, so that the balance principle can be used to further improve the stability of the entire abutment while preventing vibration.

[0050] Generally speaking, in order to improve comfort and reduce damage to the implant 10 during installation, the side of the connection part 1 is a smooth arc surface structure. However, after the structure is combined with the implant 10, during the installation of the gingival area and the bonding area, relative rotation and looseness may occur between the connection part 1 and the implant 10. Even after the entire crown 9 is installed, in the patient's daily life, relative rotation and looseness may also occur between the connection area and the implant 10, resulting in low stability of the implant, which will reduce the patient's use experience. In order to solve this problem, in an embodiment of the utility model, a number of protrusions 8 will be provided on the side of the connection part 1. The protrusions 8 will increase the friction between the connection part 1 and the connection surface of the implant 10, thereby preventing the connection part 1 from rotating relative to the implant 10 and improving the installation stability of the entire base. It should be noted that the shape and number of the protrusions 8 are not limited here, as long as they can achieve sufficient anti-rotation purposes.

[0051] For example, Figure 6-8 As shown, the protrusion 8 is in the shape of a convex tooth, wherein Figure 6 There are six middle protrusions 8, and the overall cross-section after being spliced ​​with the connecting portion 1 is a regular hexagon. Figure 7 The overall cross-section of the middle protrusion 8 and the connecting portion 1 after being spliced ​​is a regular dodecagon. Figure 8 The overall cross section is a regular twelve-star structure. In other embodiments, the overall cross section may also be a triangle, pentagon, heptagon or other polygonal shape or a three-star, four-star structure, etc., which is not limited here. Similarly, the number of protrusions 8 may be one, two, etc. Of course, in order to reduce the damage of the protrusions 8 to the implant 10, the outer convex surface of the protrusion 8 may be set to an arc shape. For example, Figure 3-5 As shown, Figure 3 The number of protrusions 8 in is three, Figure 4 The number of the middle protrusions 8 is four. Figure 5 The number of protrusions 8 in the middle is also four, which is the same as Figure 3 The difference is, Figure 4The side edge of the quadrangular prism is cut into an arc shape. Generally speaking, the above-mentioned protrusion 8 can be set in the embodiments of the utility model. In other embodiments, other protrusion 8 layouts can also be set according to actual needs. Preferably, the protrusion 8 is set at the end of the side of the connecting part 1, and the protrusion 8 is set beside the connection between the connecting part 1 and the gingival part 2. In this way, the protrusion 8 can be used as a positioning feature to help correctly align the abutment and the implant 10 during the installation process, ensure the stability and accuracy of the abutment, and also reduce the damage of the protrusion 8 to the implant 10.

[0052] In order to further improve the connection stability between the abutment and the implant 10, the connection part 1 can be set to a cone. Specifically, the radial size of the free end of the connection part 1 is smaller than the radial size of the connection end with the gingival part 2. Preferably, the angle between the side of the connection part 1 and its axis is 0°-30°. While ensuring the connection stability, it reduces the pressure on the surrounding soft tissue, helps to protect the health of the gums and reduce the risk of inflammation. At the same time, this structure has a stronger anti-rotation ability than a cylindrical structure. When the abutment is used in the anterior teeth area, the cross-section of the gingival part 2 is a circular triangle (such as Fig.11 When the abutment is used in the premolar area, the cross-section of the gingival portion 2 is a vertical ellipse (as shown); Fig.12 When the abutment is used in the molar area, the cross-section of the gingival portion 2 is a round quadrilateral (as shown); Fig.13 As shown in the figure, different tooth regions have different anatomical forms and functional requirements. By designing a specific cross-sectional shape of the gingival portion 2 for each region, the abutment can better adapt to the anatomical structure of the region. Different tooth regions are subjected to different forces and directions during chewing. This can help distribute the chewing force more evenly, reduce the stress on the implant 10 and surrounding bone tissue, and at the same time, it is necessary to consider the protection of the gums, avoid excessive pressure or damage to the gums, and maintain the health of the gums.

[0053] For example, when the abutment is used for independent restoration on a single tooth, a protrusion 8 (such as Figure 3-8 When the abutment is used for joint restoration of multiple teeth, the protrusion 8 may not be provided on the connecting portion 1 (as shown in FIG. Fig. 9 As shown), the angle θ is formed between the inclined surface of the connecting part 1 and the long axis of the base, as shown in Fig.10 As shown, θ is preferably 0-30°, for example, 5°. Of course, in other embodiments, the angle may also be 0° or 35°. The gingival portion 2 is located above the connecting portion 1, and its shape is consistent with the neck shape of the corresponding tooth position, that is, the shape of the gingival portion 2 of the abutment replicates the neck shape of the natural tooth at the corresponding position, which is conducive to maintaining or constructing the soft tissue shape consistent with the surrounding of the natural tooth body, wherein the horizontal section of the anterior tooth area is mainly a round triangle (such as Fig.11 The horizontal section of the premolar area is vertically elliptical (as shown in Fig.12The horizontal section of the molar area is a rounded quadrilateral (as shown in Fig.13 As shown in the figure, the longitudinal section is in the shape of an inverted cone, that is, the diameter of the gingival portion 2 at the joint with the connecting portion 1 is smaller than the diameter of the non-bonded portion, and the surface of the gingival portion 2 is highly polished with an average roughness (i.e., Ra value) not greater than 0.02 μm, for example, 0.01 μm, which is conducive to the formation of a good biological sealing effect of soft tissue. The bonding portion 3 is located above the gingival portion 2, and the shoulder end 4 is the boundary between the two. A concave hole 7 is provided on the surface of the bonding portion 3, and the cross-section of the concave hole 7 is preferably circular, and the depth of the concave hole 7 ranges from 1 to 100 μm, for example, 10 μm; the diameter ranges from 1 to 100 μm, for example, 10 μm; the spacing ranges from 1 to 100 μm, for example, 10 μm; the channel structure 5 is located inside the base, concentric and coaxial with the connecting portion 1, preferably wide at the top and narrow at the bottom, with an inner diameter of 1.5 to 3 mm, for example, 2.3 mm or 1.5 mm, to accommodate the screw 6.

[0054] Preferably, the connecting portion 1 may be as follows Fig.17 The metal substrate 12 has a hollow structure, and a limiting portion 11 is provided between the two ends of the metal substrate 12. Fig.18 As shown, when the abutment is installed on the implant 10, the limit portion 11 of the metal base 12 is located above the gingival portion 2, and the limit portion 11 of the metal base 12 is located below the implant 10. The screw 6 can be inserted into the hollow structure of the metal base 12, and cooperate with the metal base 12 to finally fix the abutment in the implant 10. Of course, in other embodiments, the connecting portion 1 and the gingival portion 2 can also be connected by directly splicing the end faces, such as Figure 1 As shown, there is no limitation here, as long as the purpose of stably connecting the connecting part 1 and the gingival part 2 and stably installing the abutment in the implant 10 can be achieved.

[0055] It should also be noted that, in the actual operation process, the gingival portion 2 is not limited to the above three forms, and can be adjusted individually according to different sites of different populations. The shape of the concave hole 7 of the bonding portion 3 can be an ellipse, or an n-gon such as a triangle, a quadrilateral, a pentagon, etc., where n is a positive integer greater than or equal to three, or a regular star-shaped m-gon, where m is a positive integer greater than or equal to three, or other unspecified closed shapes, such as a groove, etc.; the morphological section of the shoulder end 4 can be a shallow concave shape (such as Figure 1 As shown), circular rectangular diagram (as shown Fig.14 as shown), blade-like or feather-like (as Fig.15 The base is preferably made of zirconia ceramics, and can also be made of ceramic materials such as lithium disilicate glass ceramics and resin-based ceramics.

[0056] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model. It should be noted that the structures or components illustrated in the drawings are not necessarily drawn to scale, and the utility model omits the description of known components and processing technologies and processes to avoid unnecessary limitations on the utility model.

Claims

1. A novel implant restoration ceramic abutment, comprising a connecting portion (1), a gingival portion (2) and a bonding portion (3), wherein one end of the gingival portion (2) is connected to the connecting portion (1), and the other end is connected to the bonding portion (3), the connecting portion (1) is used to be mounted on an implant (10), and the bonding portion (3) is used to mount a crown (9), characterized in that: The base also includes a channel structure (5) for placing screws (6); and a plurality of recessed holes (7) are arranged on the surface of the bonding portion (3).

2. A novel implant restoration ceramic abutment according to claim 1, characterized in that: The channel structure (5) simultaneously penetrates the connecting portion (1), the gingival portion (2) and the bonding portion (3).

3. The novel implant restoration ceramic abutment according to claim 1, characterized in that: A plurality of protrusions (8) are arranged on the side wall of the connecting portion (1).

4. The novel implant restoration ceramic abutment according to claim 3 is characterized in that: The protrusion (8) is in the shape of a convex tooth.

5. The novel implant restoration ceramic abutment according to claim 4 is characterized in that: The cross-sectional outer contour of the connecting portion (1) is in a polygonal shape.

6. The novel implant restoration ceramic abutment according to claim 3, characterized in that: The outer convex surface of the protrusion (8) is in an arc shape.

7. The novel implant restoration ceramic abutment according to claim 3 is characterized in that: The protrusion (8) is arranged at the end of the side wall of the connecting portion (1), and the protrusion (8) is arranged at the connection between the connecting portion (1) and the gingival portion (2).

8. The novel implant restoration ceramic abutment according to claim 7, characterized in that: The cross-sectional dimensions of the connecting portion (1) gradually decrease from one end where the connecting portion (1) is connected to the gingival portion (2) to the other end.

9. The novel implant restoration ceramic abutment according to claim 8, characterized in that: The angle between the side surface of the connecting portion (1) and its axis is 0°-30°.

10. The novel implant restoration ceramic abutment according to claim 1, characterized in that: The cross section of the gingival penetration portion (2) is in the shape of a circular triangle, a vertical ellipse, or a circular quadrilateral.

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