Base station with locking structure

Abstract

The utility model provides an abutment with a locking structure, which comprises a dental crown mounting part and a locking mechanism, the locking mechanism comprises an upper part, a middle part, a lower part and a bottom part which are fixedly connected in sequence, a dental crown matching surface is formed at the top end of the upper part, the upper part is also provided with an upper thread connected with the dental crown mounting part, the lower part is provided with a lower thread connected with an implant, and the locking mechanism is connected with the dental crown mounting part. The upper threads and the lower threads are different in specification. According to the abutment with the locking structure, the strength of a locking position is higher after the dental crown is installed, the stress of the dental crown is uniformly dispersed on a matching surface, the long-term stability in the mouth of a patient can be improved, and looseness is avoided; the long-term stability of the product is improved, maintenance and replacement in the use process are facilitated, the operation convenience of medical staff is remarkably improved, and the pain of a patient and the operation cost are reduced.

Description

Technical Field

[0001] This utility model belongs to the field of medical devices, and in particular relates to a base with a locking structure. Background Technology

[0002] The current dental implant procedure involves installing a healing abutment after the implant is placed in the alveolar bone to allow the wound to heal. After healing, the healing abutment is removed and a scanning rod is inserted for digital scanning to determine the abutment's orientation and shape. Once confirmed, the scanning rod is removed and the healing abutment is inserted to await the fabrication of the restorative abutment and crown. After the crown is made, the healing abutment is removed and the restorative abutment and crown are installed. The abutment is locked in place using a central screw. However, due to assembly requirements and limitations in the product's abutment structure, this existing locking mechanism requires a channel for screw installation in the abutment structure. This structure results in an incomplete external structure at the crown mounting location on the top of the abutment, and the central screw mounting channel on the upper part of the abutment is incomplete. When installing dental crowns, the main methods of retention are screw fixation and screw bonding (mixed) fixation. During the long-term wearing of the crown in the patient's mouth, the crown is subjected to uneven stress. Under long-term cyclic load use, the crown may loosen. In severe cases, it may damage the threads of the restorative abutment and the crown, resulting in the need for the patient to install a new restorative abutment and a new crown. The process is very complicated, maintenance and repair are inconvenient, and the disassembly and assembly process also increases the patient's pain and surgical costs. Utility Model Content

[0003] In view of this, the present invention aims to provide an abutment with a locking structure to solve the problem that dental crowns are easily damaged, resulting in patients needing to install new restorative abutments and new dental crowns.

[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0005] A base with a locking structure includes a crown mounting part and a locking mechanism. The locking mechanism includes an upper part, a middle part, a lower part and a bottom part that are fixedly connected in sequence. The top end of the upper part forms a crown mating surface. The upper part is also provided with an upper thread for connecting to the crown mounting part, and the lower part is provided with a lower thread for connecting to the implant. The upper thread and the lower thread have different specifications.

[0006] Furthermore, the crown mounting part and the locking mechanism are an integral structure.

[0007] Furthermore, the bottom is conical and located inside the implant.

[0008] Furthermore, the upper thread is a double thread with a specification of M1.8xPh0.4 P0.2, and the lower thread has a specification of M1.6x0.35.

[0009] Furthermore, the interior of the upper part is a regular hexagon and the top forms an arc-shaped surface.

[0010] Furthermore, the middle part includes an integral upper groove, a protrusion, and a lower groove, both of which are annular grooves and are symmetrically arranged about the annular protrusion.

[0011] Compared with the prior art, the base with locking structure described in this utility model has the following advantages:

[0012] (1) The base with locking structure described in this utility model has a higher locking and retention strength after the crown is installed. The crown is evenly distributed on the mating surface, which can improve the long-term stability in the patient's mouth and prevent loosening. It improves the long-term stability of the product, facilitates maintenance and replacement during use, significantly improves the operational convenience of medical staff, and reduces the patient's pain and surgical costs.

[0013] (2) The base with locking structure described in this utility model has a complete structure in the area of ​​the crown mating surface used to fix the crown, which can improve the locking strength of the crown, increase the contact surface after the crown is fixed, and reduce the risk of crown loosening. Attached Figure Description

[0014] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0015] Figure 1 This is a schematic diagram of the base with a locking structure in use according to an embodiment of the present invention;

[0016] Figure 2 This is a schematic diagram of the locking mechanism described in an embodiment of the present utility model;

[0017] Figure 3 This is a cross-sectional view of the locking mechanism described in an embodiment of the present invention.

[0018] Explanation of reference numerals in the attached figures:

[0019] 1-Crown mounting section; 2-Locking mechanism; 21-Upper part; 22-Middle part; 221-Upper groove; 222-Protrusion; 223-Lower groove; 23-Lower part; 24-Bottom; 3-Implant. Detailed Implementation

[0020] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0022] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0023] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] A base with a locking structure, such as Figures 1 to 3 As shown, it includes a crown mounting part 1 and a locking mechanism 2. The locking mechanism 2 includes an upper part 21, a middle part 22, a lower part 23 and a bottom part 24 that are fixedly connected in sequence. The top of the upper part 21 forms a crown mating surface. The upper part 21 is also provided with an upper thread that connects to the crown mounting part 1. This structure makes the crown evenly stressed after it is locked and fixed, with high locking strength, reducing the risk of crown loosening. The lower part 23 is provided with a lower thread that connects to the implant 3.

[0025] The abutment with a locking structure in this design ensures uniform force distribution on the crown, improves the strength of crown retention, reduces the risk of crown loosening, decreases surgical costs, enhances the ease of operation for medical staff, and reduces patient suffering.

[0026] Preferably, the crown mounting part 1 and the locking mechanism 2 are integrated into one structure.

[0027] The bottom 24 is a conical surface, installed inside the implant 3, and used to seal the implant 3.

[0028] The upper thread is M1.8xPh0.4 P0.2, which is a double-threaded thread with a lead of 0.4 mm and a pitch of 0.2 mm. The lower thread is M1.6x0.35. Utilizing the difference between the upper part 21 and the lower part 23 of the double-ended locking mechanism, for each rotation of the locking mechanism 2, the upper part 21 moves 0.4 mm and the lower part 23 moves 0.35 mm. The downward pressure provided by the locking mechanism 2 to the crown mounting part 1 provides an upward pulling force to the implant 3, thereby achieving a tight fit between the conical surface of the bottom 24 and the implant 3.

[0029] The upper part 21 has a regular hexagonal interior and an arc-shaped top, forming the crown mating surface. This mating surface, which is the structurally complete area used to fix the crown, improves the strength of the crown's locking mechanism, increases the contact area after retention, reduces the risk of crown loosening, simplifies the implant restoration procedure, reduces post-operative maintenance, lowers surgical costs, and reduces patient discomfort.

[0030] The middle part 22 includes an integral upper groove 221, a protrusion 222 and a lower groove 223. The upper groove 221 and the lower groove 223 are both annular grooves and are symmetrically arranged about the annular protrusion 222. The protrusion 222 is used to provide support, and the upper groove 221 and the lower groove 223 have a weight-reducing effect, reducing the overall weight of the base.

[0031] This solution features a locking abutment that enhances the retention strength of the crown, simplifies long-term maintenance procedures, and is easy to operate. Utilizing a one-piece design, the top structure is used for crown installation, while the bottom structure, installed on the implant, uses a conical seal. The complete crown mating surface design of the top structure results in higher retention strength after crown installation, with force evenly distributed across the mating surface, improving long-term stability within the patient's mouth and preventing loosening. This enhanced long-term stability facilitates maintenance and replacement during use, significantly improves operational convenience for healthcare professionals, reduces patient discomfort, and lowers surgical costs.

[0032] 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, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A base with a locking structure, characterized in that: It includes a crown mounting part and a locking mechanism. The locking mechanism includes an upper part, a middle part, a lower part and a bottom part that are fixedly connected in sequence. The top of the upper part forms a crown mating surface. The upper part is also provided with an upper thread that connects to the crown mounting part, and the lower part is provided with a lower thread that connects to the implant. The upper thread and the lower thread have different specifications. The middle part includes an integrated upper groove, a protrusion, and a lower groove. Both the upper and lower grooves are annular grooves, and the protrusion is symmetrically arranged about the annular shape.

2. The base with a locking structure according to claim 1, characterized in that: The crown installation part and the locking mechanism are integrated into one structure.

3. The base with a locking structure according to claim 1, characterized in that: The bottom is conical and located inside the implant.

4. The abutment with locking structure according to claim 1, characterized in that: The upper thread is a double thread with specifications of M1.8xPh0.4 P0.2, and the lower thread has specifications of M1.6x0.

35.

5. A base with a locking structure according to claim 1, characterized in that: The upper part has a regular hexagonal interior and an arc-shaped top.

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