Self-locking porcelain tooth

Abstract

The utility model discloses a self-locking porcelain tooth, and relates to the technical field of false teeth. Comprising a mounting base and a dental crown, a first groove is formed in the mounting base in the vertical direction, a second groove communicated with the first groove is formed in the mounting base in the transverse direction, and a locking piece is arranged in the second groove in a sliding mode. A mounting groove matched with the mounting base is formed in the dental crown, a convex column matched with the first groove is arranged in the mounting groove, a guide inclined surface is formed at the end part of the convex column, and the convex column is matched with the locking piece slope through the guide inclined surface; a locking groove matched with the locking piece is transversely formed in the inner wall surface of the mounting groove; an adhesive is arranged between the mounting base and the dental crown; by adopting the technical scheme provided by the invention, the connection strength of the dental crown and the mounting base can be effectively improved, the problem that the dental crown is easy to loosen after being used for a certain time is avoided, and the service life of the dental crown is effectively prolonged.

Description

Technical Field

[0001] This application relates to the technical field of dentures, and particularly to a self-locking porcelain-fused-to-metal tooth. Background Art

[0002] A porcelain-fused-to-metal tooth, that is, a porcelain-fused-to-metal full crown, also known as a metal-ceramic combined crown, is a full crown restoration formed by sintering porcelain powder at high temperature and fusing it to the surface of a metal inner crown. The metal-ceramic crown, the most commonly used full crown restoration in clinical practice at present, combines the advantages of good mechanical strength of a cast metal full crown and the beauty of a all-ceramic crown, and is an ideal restoration.

[0003] During assembly, an adhesive is generally used to connect the crown and the dental post. After long-term use, it is found that there are some problems with this method: First, the adhesive is chemically bonded and fixed. After long-term use, the colloid ages and the adhesion is likely to decrease, so problems such as detachment or loosening are likely to occur subsequently; Secondly, when using an adhesive, since the surface of the bonding position is relatively smooth, the adhesive remains less, which is not conducive to achieving stable bonding and affects the sustainability of the bonding stability. Summary of the Utility Model

[0004] The purpose of this application is to provide a self-locking porcelain-fused-to-metal tooth to solve at least one of the above technical problems.

[0005] To solve the above technical problems, this application provides a self-locking porcelain-fused-to-metal tooth, including an installation base and a crown;

[0006] A first groove is formed on the installation base in the vertical direction, and a second groove communicating with the first groove is formed in the horizontal direction. A locking member is slidably disposed in the second groove;

[0007] An installation groove adapted to the installation base is formed on the crown. A convex column adapted to the first groove is disposed in the installation groove. A guiding inclined surface is formed at the end of the convex column. The convex column is in a slope fit with the locking member through the guiding inclined surface; A locking groove adapted to the locking member is horizontally disposed on the inner wall surface of the installation groove;

[0008] An adhesive is provided between the installation base and the crown;

[0009] Wherein, when the convex column extends vertically into the first groove, the convex column is adapted to make the locking member snap into the locking groove;

[0010] In the above implementation process, during assembly, the adhesive can be first applied to the installation groove, and then the convex column on the dental crown is aligned with the first groove on the installation base and inserted. The adhesive can achieve the adhesion of the contact surface between the installation base and the dental crown, thereby realizing the connection between the two. In addition, when the convex column enters the first groove, it will drive the locking member to move, which can be further understood as moving away from the convex column to extend out of the second groove and snap into the installation groove on the dental crown, thereby realizing the clamping of the two and further improving the connection stability between the two. It can be seen that this solution adopts a double-insurance method to improve the connection stability between the installation base and the dental crown. On the basis of using the adhesive, the locking is further achieved through the cooperation of the locking member and the locking groove, and self-locking can be realized during the assembly process. In this way, the connection strength can be effectively improved, the problem that the dental crown is prone to looseness after a certain period of use is avoided, and its service life is effectively extended.

[0011] Preferably, the locking member includes a locking block, a guiding block, and an elastic member connecting the locking block and the guiding block;

[0012] The locking block is arranged close to the locking groove, the guiding block is arranged close to the first groove, and the guiding block is in slope cooperation with the convex column;

[0013] In the above implementation process, it can be understood that when the convex column extends into the first groove, it drives the locking block away from the convex column through the guiding block and the elastic member. When the dental crown is not assembled in place, it can be understood that at this time the locking block abuts against the inner wall surface of the installation groove under the action of the elastic member. Until the dental crown is assembled in place, the locking block is driven by the elastic member to snap into the locking groove to realize the clamping of the two.

[0014] Preferably, at least two locking members are provided, and at least two locking members are arranged oppositely;

[0015] The locking grooves are arranged in one-to-one correspondence with the locking members;

[0016] In the above implementation process, this solution can further improve the connection strength between the dental crown and the installation base by setting multiple locking members and cooperating with multiple locking grooves.

[0017] Preferably, a plurality of third grooves are formed on the outer surface of the installation base;

[0018] Preferably, a plurality of fourth grooves are formed on the inner wall of the installation groove, the fourth grooves correspond to the third grooves, and are adapted to accommodate the adhesive;

[0019] In the above implementation process, when applying the adhesive, the third groove and the fourth groove accommodate a part of the adhesive. Since the third groove and the fourth groove are correspondingly arranged, during assembly, more adhesive can remain compared to the traditional smooth avoidance solution, thereby further enhancing the connection stability between the dental crown and the mounting base.

[0020] Preferably, the fourth groove slopes downward along an oblique line;

[0021] In the above implementation process, the fourth groove slopes downward along an oblique line, so that the adhesive can be better retained in cooperation with the gravity.

[0022] Preferably, the mounting base includes a frustum portion and a cylindrical portion provided on the frustum portion;

[0023] The first groove and the second groove are formed in the cylindrical portion;

[0024] In the above implementation process, the cylindrical portion can achieve basic positioning, and the frustum portion can increase the contact area between the dental crown and the mounting base, thereby enhancing the connection strength between the two.

[0025] Preferably, the cross-section of the cylindrical portion is rectangular;

[0026] In the above implementation process, the cross-section of the cylindrical portion is rectangular, so that the assembly position can be better found during assembly; of course, the cross-section of the cylindrical portion can also be other shapes, such as circular.

[0027] Compared with the prior art, the beneficial effect of the present application is that this solution adopts a double-insurance method to enhance the connection stability between the mounting base and the dental crown. On the basis of using the adhesive, the locking is further achieved through the cooperation of the locking member and the locking groove, and self-locking can be achieved during the assembly process, so that the connection strength can be effectively improved, the problem that the dental crown is prone to looseness after being used for a certain period of time is avoided, and its service life is effectively extended. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0029] Figure 1 is a schematic diagram of the overall structure of one embodiment of the present application;

[0030] Figure 2 is a schematic diagram of the structure of the mounting base of one embodiment of the present application;

[0031] Figure 3 is Figure 2 a schematic enlarged view of the structure of part A in

[0032] Figure 4 a schematic view of the structure of a dental crown according to an embodiment of the present application;

[0033] Wherein: 10, mounting base; 11, cylindrical portion; 111, first groove; 112, second groove; 12, frustum portion; 121, third groove; 20, dental crown; 21, mounting groove; 22, convex post; 23, locking groove; 24, fourth groove; 30, locking member; 31, locking block; 32, elastic member; 33, guiding block. Detailed implementation manners

[0034] The following will disclose multiple embodiments of the present application with diagrams. For the sake of clear illustration, many practical details will be described together in the following narrative. However, it should be understood that these practical details are not used to limit the present application. That is to say, in some embodiments of the present application, these practical details are not necessary. In addition, for the purpose of simplifying the diagrams, some conventional structures and components will be shown in a simple schematic manner in the diagrams.

[0035] It should be noted that all directional indications such as up, down, left, right, front, back... in the embodiments of the present application are only used to explain the relative positional relationship and movement conditions between components in a specific posture as shown in the drawings. If this specific posture changes, then the directional indications will also change accordingly.

[0036] In addition, in the present application, descriptions such as "first", "second", etc. are only for descriptive purposes, and do not particularly refer to the order or sequence, nor are they used to limit the present application. They are merely used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present application.

[0037] To further understand the utility model content, features and effects of the present application, the following embodiments are cited and described in detail with the accompanying drawings as follows:

[0038] Embodiment

[0039] Porcelain teeth, that is, porcelain-fused-to-metal crowns, also known as metal-ceramic combined crowns, are full crown restorations formed by sintering porcelain powder at high temperature and fusing it to the surface of the metal inner crown. Metal-ceramic crowns, the most commonly used full crown restorations in clinical practice at present, have the advantages of good mechanical strength of cast metal full crowns and the beauty of all-ceramic crowns, and are an ideal type of restoration. When assembling, an adhesive is generally used to connect the crown and the dental post. After long-term use, the following problems are found in this method: First, the adhesive is chemically bonded and fixed. After long-term use, the colloid ages and the adhesion is likely to decrease, so problems such as detachment or loosening are likely to occur subsequently; secondly, when using the adhesive, since the surface of the bonding position is relatively smooth, less adhesive remains, which is not conducive to achieving stable bonding and affects the sustainability of the bonding stability. To solve the above technical problems, the following technical solutions are provided in this embodiment:

[0040] Specifically, please refer to Figures 1-4 , this embodiment provides a self-locking porcelain tooth, including an installation base 10 and a crown 20;

[0041] Specifically, a first groove 111 is formed in the installation base 10 in the vertical direction, and a second groove 112 communicating with the first groove 111 is formed in the horizontal direction. A locking member 30 is slidably disposed in the second groove 112;

[0042] Furthermore, an installation groove 21 adapted to the installation base 10 is formed in the crown 20. A convex column 22 adapted to the first groove 111 is provided in the installation groove 21. A guiding inclined surface is formed at the end of the convex column 22. The convex column 22 is in slope cooperation with the locking member 30 through the guiding inclined surface; a locking groove 23 adapted to the locking member 30 is horizontally provided on the inner wall surface of the installation groove 21;

[0043] Specifically, an adhesive is provided between the installation base 10 and the crown 20;

[0044] Wherein, when the convex column 22 extends into the first groove 111 in the vertical direction, the convex column 22 is adapted to make the locking member 30 snap into the locking groove 23;

[0045] In the above solution, during assembly, the adhesive can be first applied in the installation groove 21, and then the convex post 22 on the dental crown 20 is aligned with the first groove 111 on the installation base 10 and inserted. The adhesive can achieve the adhesion of the contact surface between the installation base 10 and the dental crown 20, thereby realizing the connection between the two. In addition, when the convex post 22 enters the first groove 111, it will drive the locking member 30 to move, which can be further understood as moving in a direction away from the convex post 22 to extend out of the second groove 112 and snap into the installation groove 21 on the dental crown 20, thereby realizing the clamping of the two and further improving the connection stability between the two. It can be seen that this solution uses a double-insurance method to improve the connection stability between the installation base 10 and the dental crown 20. On the basis of using the adhesive, the locking is further achieved through the cooperation of the locking member 30 and the locking groove 23, and self-locking can be realized during the assembly process, so as to effectively improve the connection strength and avoid the problem that the dental crown 20 is prone to looseness after a certain period of use, effectively extending its service life.

[0046] Specifically, please refer to Figures 2-3 , the locking member 30 includes a locking block 31, a guiding block 33 and an elastic member 32 connected between the locking block 31 and the guiding block 33;

[0047] Furthermore, the locking block 31 is arranged close to the locking groove 23, the guiding block 33 is arranged close to the first groove 111, and the guiding block 33 is in slope cooperation with the convex post 22;

[0048] In the above solution, it can be understood that when the convex post 22 extends into the first groove 111, it drives the locking block 31 away from the convex post 22 through the guiding block 33 and the elastic member 32; when the dental crown 20 is not assembled in place, it can be understood that at this time the locking block 31 abuts against the inner wall surface of the installation groove 21 under the action of the elastic member 32, until the dental crown 20 is assembled in place, and then drives the locking block 31 to snap into the locking groove 23 under the action of the elastic member 32 to realize the clamping of the two.

[0049] Furthermore, in one of the embodiments, at least two locking members 30 are provided, and at least two locking members 30 are arranged oppositely;

[0050] Furthermore, the locking grooves 23 and the locking members 30 are arranged in one-to-one correspondence;

[0051] In the above solution, this solution can further improve the connection strength between the dental crown 20 and the installation base 10 by providing a plurality of locking members 30 and cooperating with a plurality of locking grooves 23.

[0052] Specifically, a plurality of third grooves 121 are formed on the outer surface of the installation base 10.

[0053] Specifically, a plurality of fourth grooves 24 are formed on the inner wall of the installation groove 21. The fourth grooves 24 correspond to the third grooves 121 and are adapted to accommodate the adhesive.

[0054] In the above solution, when applying the adhesive, the third grooves 121 and the fourth grooves 24 accommodate a part of the adhesive. Since the third grooves 121 and the fourth grooves 24 are correspondingly arranged, more adhesive can remain during assembly compared to the traditional smooth avoidance solution, thereby further enhancing the connection stability between the dental crown 20 and the installation base 10.

[0055] Specifically, please refer to Figure 4 , the fourth grooves 24 are inclined downward along an oblique line;

[0056] In the above solution, the fourth grooves 24 are inclined downward along an oblique line, so that the adhesive can be better retained by the action of gravity.

[0057] Specifically, the installation base 10 includes a frustum portion 12 and a cylindrical portion 11 provided on the frustum portion 12;

[0058] Further, the first groove 111 and the second groove 112 are formed in the cylindrical portion 11;

[0059] In the above solution, the cylindrical portion 11 can achieve basic positioning, and the frustum portion 12 can increase the contact area between the dental crown 20 and the installation base 10, thereby enhancing the connection strength between the two.

[0060] Specifically, the cross-section of the cylindrical portion 11 is rectangular;

[0061] In the above solution, the cross-section of the cylindrical portion 11 is rectangular, so that the assembly position can be better found during assembly; of course, the cross-section of the cylindrical portion 11 can also be other shapes, such as circular.

[0062] The above description is only a preferred embodiment of the present application, and does not impose any form of limitation on the present application. Any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present application shall fall within the scope of the technical solution of the present application.

Claims

1. A self-locking porcelain tooth, characterized in that: Including installation of base and crown; A first groove is formed on the mounting base in a vertical direction, a second groove is formed in a transverse direction and communicates with the first groove, and a locking member is slidably provided in the second groove; The crown is formed with a mounting groove adapted to the mounting base, a convex column adapted to the first groove is provided in the mounting groove, a guiding inclined surface is formed at the end of the convex column, and the convex column cooperates with the locking member slope through the guiding inclined surface; a locking groove adapted to the locking member is transversely provided on the inner wall surface of the mounting groove; An adhesive is provided between the mounting base and the dental crown; Wherein, when the boss extends into the first groove along the vertical direction, the boss is suitable for causing the locking member to be locked into the locking groove.

2. The self-locking porcelain tooth according to claim 1, characterized in that: The locking member comprises a locking block, a guide block and an elastic member connected between the locking block and the guide block; The locking block is arranged close to the locking groove, the guiding block is arranged close to the first groove, and the guiding block cooperates with the boss slope.

3. The self-locking porcelain tooth according to claim 2, characterized in that: There are at least two locking members, and at least two locking members are arranged opposite to each other; The locking grooves and the locking pieces are arranged in a one-to-one correspondence.

4. The self-locking porcelain tooth according to claim 2, characterized in that: A plurality of third grooves are formed on the outer surface of the mounting base.

5. The self-locking porcelain tooth according to claim 4, characterized in that: A plurality of fourth grooves are formed on the inner wall of the installation groove, the fourth grooves correspond to the third grooves and are suitable for accommodating the adhesive.

6. The self-locking porcelain tooth according to claim 5, characterized in that: The fourth groove is inclined downward along an oblique line.

7. The self-locking porcelain tooth according to claim 6, characterized in that: The mounting base includes a truncated cone portion and a columnar portion disposed on the truncated cone portion; The first groove and the second groove are formed in the cylindrical portion.

8. The self-locking porcelain tooth according to claim 7, characterized in that: The cross section of the columnar portion is rectangular.

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