Dental crown fixing abutment structure convenient to disassemble

Abstract

The utility model discloses a dental crown fixing abutment structure convenient to disassemble, which relates to the technical field of medical equipment and comprises an implant retention screw, an abutment fixing seat is arranged on the outer side of the top of the implant retention screw, an abutment is butted on the abutment fixing seat, and a locking screw is arranged in the abutment. According to the dental crown fixing abutment structure convenient to disassemble, the abutment and the dental crown can be assembled and disassembled through fixing and disassembling of the locking screws, and the situation that the abutment is repeatedly taken and worn, mechanical stimulation is caused to gingival tissue when the abutment is taken off and worn, and local inflammatory response is induced is effectively avoided; multiple times of confirmation of in-position precision in the repeated wearing and taking-off process of the abutment are avoided, and the reworking frequency is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment technical field, concretely is a crown fixed base structure convenient to dismantle. BACKGROUND

[0002] In prior art, the connecting mode of standard (finished product) base platform / individualized base platform and upper prosthesis is usually bonding (i.e. bonding agent fixation), and the connecting mode of composite base platform and implant is internal thread connection, which due to the need of repeatedly taking and wearing base platform, causes mechanical stimulation to gingival tissue when taking and wearing, can induce local inflammatory reaction, and the repeated taking and wearing process of base platform needs to confirm the accuracy of position for many times, thereby can increase the rework rate, and when bonding in mouth, the bonding agent is not cleaned completely, causes local inflammatory reaction after bonding agent remains for a long time, therefore, the technology has great disadvantages, therefore, the utility model provides a crown fixed base platform structure convenient to dismantle to solve the above problems. SUMMARY

[0003] (I) technical problem solved

[0004] In view of the deficiencies in the prior art, the utility model provides a crown fixed base platform structure convenient to dismantle, which solves the technical problems raised in the above background.

[0005] (II) technical scheme

[0006] In order to achieve the above object, the utility model takes the technical scheme that a crown fixed base platform structure convenient to dismantle, including implant retention screw, the top outer side of implant retention screw is equipped with base platform fixing seat, the butt joint of base platform fixing seat is equipped with base platform, the inside of base platform is provided with locking screw;

[0007] The implant retention screw is provided with first outer thread and internal hex, and the internal hex is arranged at the top end of the implant retention screw, and the first outer thread is arranged at the bottom end of the implant retention screw;

[0008] The base platform fixing seat is provided with upper internal thread and lower internal thread, and the upper internal thread and the lower internal thread are arranged at the top end and the middle part of the base platform fixing seat respectively;

[0009] The base platform is provided with notch, second outer thread and connecting protrusion, the notch is arranged at the top end of the base platform, the second outer thread is arranged on the outer wall of the base platform, and the connecting protrusion is arranged in the inside of the base platform;

[0010] The locking screw is provided with third outer thread and screw cap, and the third outer thread and the screw cap are arranged at the bottom side and the top end of the locking screw respectively;

[0011] The implant retention screw is screwed into the inside of the abutment fixing seat through the connection of the first external thread and the lower internal thread, and the abutment is butted on the upper side of the abutment fixing seat, and the first external thread of the locking screw is connected with the internal thread on the top side of the abutment fixing seat, and the abutment is fixed on the abutment fixing seat through the connection of the locking screw and the abutment fixing seat.

[0012] Preferably, the implant retention screw is connected with the tooth implant site through the first external thread.

[0013] Preferably, the abutment is externally provided with a dental crown.

[0014] Preferably, the installation and dismounting of the abutment and the dental crown are realized through the fixing and dismounting of the locking screw.

[0015] (Three) beneficial effects

[0016] The beneficial effects of the utility model lie in:

[0017] The abutment and the dental crown can be installed and dismounted through the fixing and dismounting of the locking screw, the repeated taking and wearing of the abutment is avoided, the mechanical stimulation to the gum tissue during taking and wearing is avoided, local inflammatory reaction is induced, the abutment needs to be confirmed in position for many times during the repeated taking and wearing process, the number of rework is reduced, the risk of adhesive residue is avoided through the adoption of the extraoral adhesive technology, local inflammatory reaction is induced, the risk of anti-lateral force and screw breakage is increased, the internal hexagon arranged on the top side of the implant retention screw can be used to increase the friction force, the stress concentration damage to the implant part caused by the lateral force is reduced, the notch arranged on the abutment can reserve the buffer space for the implant needing to be adjusted in angle. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 It is a schematic view of the flat section structure of the utility model;

[0019] Fig. 2 It is a schematic view of the split structure of the utility model;

[0020] Fig. 3 It is a schematic view of the dental crown installation structure of the utility model.

[0021] In the drawing: 1 implant retention screw, 11 first external thread, 12 internal hexagon, 2 abutment fixing seat, 21 upper internal thread, 22 lower internal thread, 3 abutment, 31 notch, 32 second external thread, 33 connecting convex, 4 locking screw, 41 third external thread, 42 screw cap. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of the present application.

[0023] As shown in the accompanying drawings, the present application provides a technical solution: a crown fixing base structure convenient to disassemble, comprising an implant retention screw 1, the top outer side of the implant retention screw 1 is provided with a base fixing seat 2, the base fixing seat 2 is butted with a base 3, and the base 3 is provided with a locking screw 4; Figs. 1-3

[0024] The implant retention screw 1 comprises a first outer thread 11 and an inner hex 12, the inner hex 12 is arranged at the top end of the implant retention screw 1, and the first outer thread 11 is arranged at the bottom end of the implant retention screw 1, and the implant retention screw 1 is connected with the implant of the tooth implant site through the first outer thread 11;

[0025] The inner hex 12 is arranged to increase the friction and reduce the stress concentration damage to the implant component when the lateral force is reduced;

[0026] The base fixing seat 2 is provided with an upper inner thread 21 and a lower inner thread 22, and the upper inner thread 21 and the lower inner thread 22 are arranged at the top end and the middle part of the base fixing seat 2 respectively; the base fixing seat 1 provides support for the upper part of the base and plays a connecting relationship between the implant retention screw and the base; the upper inner thread 21 is connected with the third outer thread 41 of the locking screw 4, and the lower inner thread 22 is used for the first outer thread 11 of the implant retention screw 1.

[0027] The base 3 is provided with a notch 31, a second outer thread 32 and a connecting protrusion 33, the notch 31 is arranged at one side of the top end of the base 3, the second outer thread 32 is arranged on the outer wall of the base 3, and the connecting protrusion 33 is arranged in the middle of the inner part of the base 3, and the outer side of the base 3 is used for connecting the crown; the outer side of the base 3 is used for connecting and installing the crown, the notch 31 is used for reserving a buffer space for the implant which needs to be adjusted in angle, the second outer thread 32 is arranged to increase the bonding area of the base and the crown, and the connecting protrusion 33 is used for connecting and locking with the locking screw 4;

[0028] ​The locking screw 4 is provided with a third external thread 41 and a screw cap 42, and the third external thread 41 and the screw cap 42 are located at the bottom side and the top end of the locking screw 4 respectively, and the top end of the locking screw 4 is further provided with an internal hexagonal groove for mounting or dismounting the locking screw 4; the locking screw 4 is convenient to mount and dismount, and avoids repeatedly dismounting the abutment fixing seat 2 when a single crown is repaired in the later period, the third external thread 41 is arranged to be connected with the upper internal thread 21, so that the abutment 3 is fixed on the abutment fixing seat 2, and the screw cap 42 is arranged to be connected with the upper and lower abutment protrusions 33, so that the abutment 3 is fixed on the abutment fixing seat 2 through the connection of the third external thread 41 and the upper internal thread 21 of the abutment fixing seat 2.

[0029] The implant retaining screw 1 is screwed into the inside of the abutment fixing seat 2 through the connection of the first external thread 11 and the lower internal thread 22, the abutment 3 is connected to the upper side of the abutment fixing seat 2, the first external thread 11 of the locking screw 4 is connected with the internal thread 21 at the top side of the abutment fixing seat 2, and the abutment 3 is fixed on the abutment fixing seat 2 through the connection of the locking screw 4 and the abutment fixing seat 2, and the abutment 3 and the implant are mounted and dismounted through the fixing and dismounting of the locking screw 4.

[0030] The operation steps of the present application are as follows:

[0031] The implant retaining screw 1 is screwed into the inside of the abutment fixing seat 2 through the connection of the first external thread 11 and the lower internal thread 22, the abutment 3 is connected to the upper side of the abutment fixing seat 2, the first external thread 11 of the locking screw 4 is connected with the internal thread 21 at the top side of the abutment fixing seat 2, and the abutment 3 is fixed on the abutment fixing seat 2 through the connection of the locking screw 4 and the abutment fixing seat 2, and the abutment 3 and the implant are mounted and dismounted through the fixing and dismounting of the locking screw 4.

[0032] In the description of the present application, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0033] In the present application, unless otherwise explicitly specified and limited, for example, it can be fixedly connected, or can be detachably connected, or can be integrated; it can be mechanically connected, or can be electrically connected; it can be directly connected, or can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements, unless otherwise explicitly limited, and those skilled in the art can understand the specific meaning of the above-mentioned terms in the present application according to the specific situation.

[0034] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A crown fixation abutment structure that is easy to disassemble, characterized in that: Includes an implant fixation screw (1), the implant fixation screw (1) has a base fixing seat (2) on the outer side of the top, a base (3) is connected to the base fixing seat (2), and a locking screw (4) is provided inside the base (3). The implant fixation screw (1) is provided with a first external thread (11) and an internal hexagon (12), and the internal hexagon (12) is opened at the top of the implant fixation screw (1), and the first external thread (11) is provided at the bottom of the implant fixation screw (1). The base fixing seat (2) is provided with an upper internal thread (21) and a lower internal thread (22), and the upper internal thread (21) and the lower internal thread (22) are respectively opened at the top and middle of the base fixing seat (2); The base (3) is provided with a notch (31), a second external thread (32) and a connecting protrusion (33), and the notch (31) is opened on one side of the top of the base (3), the second external thread (32) is opened on the outer side wall of the base (3), and the connecting protrusion (33) is provided on the inner middle side of the base (3). The locking screw (4) is provided with a third external thread (41) and a screw cap (42), and the third external thread (41) and the screw cap (42) are located on the bottom side and the top side of the locking screw (4), respectively; The implant fixation screw (1) is screwed into the base fixing seat (2) through the connection of the first external thread (11) and the lower internal thread (22), and the base (3) is mated to the upper side of the base fixing seat (2). The first external thread (11) of the locking screw (4) is connected to the internal thread (21) on the top side of the base fixing seat (2), and the base (3) is fixed on the base fixing seat (2) through the connection of the locking screw (4) and the base fixing seat (2).

2. The easily detachable crown fixation abutment structure according to claim 1, characterized in that: The implant retention screw (1) is connected to the dental implant site via a first external thread (11).

3. The easily detachable crown fixation abutment structure according to claim 1, characterized in that: A dental crown is installed on the outer side of the abutment (3).

4. The easily detachable crown fixation abutment structure according to claim 1, characterized in that: The installation and removal of the abutment (3) and crown are achieved by fixing and removing the locking screw (4).

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