Assist device for simulating crown removal of implant abutment

Abstract

The utility model relates to the technical field of tooth implantation, in particular to an auxiliary device for simulating crown removal of an implant abutment, which comprises a replacement body, the abutment and a dental crown, the replacement body is implanted in gingiva, the abutment is embedded into the replacement body through threads, the dental crown is adhered to the abutment, and a crown removal device is arranged at the adhesion position of the abutment and the dental crown. The crown removing device comprises a left half ring and a right half ring, and a clamping groove and a clamping block are correspondingly arranged at the two ends of the left half ring and the two ends of the right half ring respectively and are embedded with each other. The crown removing device further comprises a screw, the screw is matched with a threaded hole formed in the dental crown, and the head end of the screw abuts against the top of the base table. A receding gap is formed between the bottom of the base table and the replacement body. The crown removing device is arranged at the bottom of the outer ring of the dental crown for fixing and supporting, and the abutment moves in the direction far away from the dental crown through the screw, so that the dental crown is separated from the abutment, labor is saved, and the dental crown cannot be damaged. The technical problem that in the prior art, in the crown removing process, a crown removing device slips from a dental crown is solved.

Description

Technical Field

[0001] This utility model relates to the field of dental implant technology, and in particular to a device for simulating crown removal from an implant abutment. Background Technology

[0002] With the continuous development of dental implant technology, dental implant technology has gradually become more mature and stable. Implant dentures are made by implanting a biocompatible titanium metal implant, which then integrates with the alveolar bone. After integration, the crown is then installed on top of the implant through the connection of the implant abutment. The function of the implant is to connect the bone and the abutment, and the abutment is used to connect the tooth. Through this gradual connection, a dental implant is finally formed.

[0003] If adjustments to the upper crown restoration are needed after the implant abutment and superstructure are bonded, the two parts must be separated and the superstructure adjusted separately to avoid deformation of the implant abutment. Clinically, high-temperature or low-temperature heating is commonly used to denature the resin adhesive, but the heating process can damage the implant abutment and is time-consuming. Heating with an alcohol lamp is unsafe, and heating with a sintering furnace requires sophisticated equipment.

[0004] A search revealed Chinese patent application number 201910140887.7, which discloses a crown removal device. This device includes a clamping part and a handle, with a slider mechanism on the handle to generate impact force. The clamping part is a claw structure for gripping the crown, featuring at least one rotatable movable claw and a locking mechanism for locking the rotation angle of the movable claw. This combination of the movable claw and locking mechanism ensures a reliable connection between the clamping part and the crown, preventing detachment and damage, thus improving the crown removal effect. The limiting arm and wedge-shaped ring structure reliably limit the rotation angle of the movable claw, ensuring reliable clamping and convenient operation. The air bladder structure better conforms to the crown, especially through inflation, creating a reliable bond between the air bladder and the crown, preventing the crown from detaching from the clamping part.

[0005] The aforementioned crown removal device uses movable claws to clamp the crown and remove it. The crown and the movable claws are combined by friction and clamping force. When the crown is too firmly bonded, more force is required to remove it. Excessive clamping may damage the crown, or insufficient clamping force may cause the crown to detach from the movable claw, resulting in crown removal failure. Moreover, the crown removal process is quite laborious. Utility Model Content

[0006] In view of the technical problems existing in the above-mentioned prior art, the crown removal process is damaged due to the moving claw clamping the crown too tightly, or the crown is separated from the moving claw due to insufficient clamping force, resulting in crown removal failure.

[0007] Technical approach: Based on the problems of existing technologies, this application provides a simulated implant abutment removal aid. By setting a removal device at the bottom of the outer ring of the crown for fixed support, and by using screws to move the abutment away from the crown, the crown and abutment can be separated, which is both labor-saving and does not damage the crown.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0009] This application provides a simulated implant abutment removal aid, including a substitute, an abutment, and a crown. The substitute is implanted in the gingiva, the abutment is threaded into the substitute, the crown is bonded to the abutment, and a removal device is provided at the bonding point between the abutment and the crown.

[0010] It should be noted that the substitute is a hollow cylindrical structure with threads on its inner wall, and the upper inner wall of the substitute is inclined; the base is divided into two parts, the lower part is a cylindrical structure that is threaded with the substitute, and the upper part is a frustum structure.

[0011] Furthermore, the crown removal device includes a left half-ring and a right half-ring, with a slot and a block respectively provided at both ends of the left half-ring and the right half-ring, and the slot and the block are interlocked.

[0012] It should be noted that the left and right halves of the ring are made of plastic.

[0013] Specifically, one end of the left half-ring is provided with a slot and the other end with a block, and the corresponding end of the right half-ring is provided with a block and the other end with a slot.

[0014] The left and right halves of the ring can be detachably connected by the interlocking of the slots and blocks.

[0015] Furthermore, the crown removal device also includes a screw that engages with a threaded hole in the crown, and the head of the screw abuts against the top of the abutment.

[0016] In particular, a clearance gap is provided between the bottom of the base and the substitute.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This invention features a crown removal device at the bonding point between the abutment and the crown. Through corresponding slots and blocks at both ends of the left and right halves of the ring, a detachable connection between the left and right halves is achieved. The interlocking left and right halves form a circular structure, providing support for the lower part of the crown and ensuring balanced force distribution on the lower part of the crown, thus avoiding damage caused by uneven force distribution.

[0019] This invention achieves the technical effect of separating the abutment from the crown by screwing the screw on the crown downwards and creating a gap between the abutment and the replacement body. This operation is simple, quick and labor-saving. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a perspective view of the overall structure of this utility model;

[0022] Figure 2 This is the front view of the present utility model;

[0023] Figure 3 This is a cross-sectional view of the present invention;

[0024] Figure 4 This utility model Figure 3 Enlarged view of section A in the middle;

[0025] Figure 5 This is a diagram showing the connection relationship between the left and right halves of the ring in this utility model.

[0026] Figure 6 This is a schematic diagram of the left half ring of this utility model;

[0027] In the diagram: 1. Replacement; 2. Abutment; 3. Crown; 4. Crown removal device; 5. Left half ring; 6. Right half ring; 7. Receptacle; 8. Receptacle block; 9. Screw; 10. Relief gap. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solution of this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0029] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "front end", "rear end", "inner side", "outer side", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0030] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" 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 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 can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0031] The inventors discovered that if adjustments to the upper crown restoration are needed after the implant abutment and superstructure are bonded, the two parts must be separated and the superstructure adjusted individually to avoid deformation of the implant abutment. Clinically, high-temperature or low-temperature heating is commonly used to denature the resin adhesive, but the heating process can damage the implant abutment and is time-consuming. Heating with an alcohol lamp is unsafe, and heating with a sintering furnace requires sophisticated equipment.

[0032] Based on the above findings, this application provides a simulated implant abutment removal aid, including a substitute 1, an abutment 2, and a crown 3. The substitute 1 is implanted in the gingiva, the abutment 2 is threaded into the substitute 1, and the crown 3 is bonded to the abutment 2. A removal device 4 is provided at the bonding point between the abutment 2 and the crown 3.

[0033] Example

[0034] Reference Figure 1-6 As shown, this application provides a simulated implant abutment removal aid, including a substitute body 1, an abutment 2, and a crown 3. The substitute body 1 is implanted in the gingiva, the abutment 2 is threaded into the substitute body 1, the crown 3 is bonded to the abutment 2, and a removal device 4 is provided at the bonding point between the abutment 2 and the crown 3.

[0035] Furthermore, the crown removal device 4 includes a left half ring 5 and a right half ring 6, with slots 7 and blocks 8 respectively provided at both ends of the left half ring 5 and the right half ring 6, and the slots 7 and blocks 8 are interlocked.

[0036] It should be noted that the left half ring 5 and the right half ring 6 are made of plastic material, which can ensure that the slot 7 and the block 8 can engage with each other.

[0037] Preferably, in order to further prevent the left half-ring 5 and the right half-ring 6 from damaging the crown 3, the edges of the left half-ring 5 and the right half-ring 6 are rounded to increase the contact area with the crown 3.

[0038] Furthermore, the crown removal device 4 also includes a screw 9, which engages with a threaded hole in the crown 3, and the head of the screw 9 abuts against the top of the abutment 2.

[0039] In particular, a clearance gap 10 is provided between the bottom of the base 2 and the substitute body 1.

[0040] During the specific operation, screw 9 is turned downwards. With the cooperation of the clearance gap 10 between the bottom of the abutment 2 and the substitute 1, the abutment 2 moves downwards, thereby separating the abutment 2 from the crown 3, which facilitates the repair or adjustment of the separated crown 3.

[0041] It should be noted that the upper opening of the substitute 1 is tilted, which allows the abutment 2 to move downward during the rotation of the screw 9. When the abutment 2 is stuck in the opening of the substitute 1, the crown 3 and the abutment 2 have been separated.

[0042] As an example, the inner diameter of the left half ring 5 and the right half ring 6 is 5mm to 8mm, and the height is 1mm to 5mm.

[0043] Specific application process:

[0044] Dental implants are a method of restoring missing teeth by using a substructure implanted into the bone tissue to support and retain the superstructure (implant-supported tooth). It consists of two parts: the lower supporting implant and the upper dental prosthesis. The implant, made of artificial materials such as metal or ceramic (generally resembling a tooth root), is surgically implanted into the bone tissue (usually the upper or lower jaw) and securely supported by the bone. It is then connected to the upper dental prosthesis using specialized devices and methods. Dental implants can achieve restorative results very similar to natural teeth in terms of function, structure, and aesthetics, and have become the preferred restoration method for an increasing number of patients with missing teeth.

[0045] In simulated dental implant procedures, if adjustments to the superstructure are needed after the abutment and superstructure are bonded, the two parts must be separated and the superstructure adjusted individually to avoid deformation of the abutment. Clinically, high-temperature or low-temperature heating methods are commonly used to denature the resin adhesive, but the heating process can damage the abutment and is time-consuming. Heating with an alcohol lamp is unsafe, and heating with a sintering furnace requires sophisticated equipment.

[0046] Based on this, this application provides a simulated implant abutment crown removal aid. In specific use, the left half ring 5 and the right half ring 6 are placed at the bonding point between the abutment 2 and the crown 3, and then the left half ring 5 and the right half ring 6 are engaged and fixed by the slot 7 and the block 8.

[0047] Furthermore, by engaging the screw 9 in the threaded hole at the top of the crown 3 and screwing the screw 9 downwards, the abutment 2 moves downwards with the clearance gap 10 provided between the bottom of the abutment 2 and the substitute body 1, thereby achieving the separation of the abutment 2 from the crown 3.

[0048] The bonded crown 3 is separated without damaging it, making it easier to repair or adjust the crown 3.

[0049] In summary, although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A simulated implant abutment removal aid, comprising a substitute (1), an abutment (2), and a crown (3), characterized in that: The substitute (1) is implanted in the gingiva, the abutment (2) is embedded in the substitute (1) by threads, the crown (3) is bonded to the abutment (2), and a crown remover (4) is provided at the bonding point between the abutment (2) and the crown (3). The crown removal device (4) includes a left half ring (5) and a right half ring (6). The left half ring (5) and the right half ring (6) are respectively provided with a slot (7) and a block (8) at both ends. The slot (7) and the block (8) fit together. The crown removal device (4) also includes a screw (9) that engages with a threaded hole in the crown (3) and the head of the screw (9) abuts against the top of the abutment (2).

2. The simulated planting base crown removal aid according to claim 1, characterized in that: A clearance gap (10) is provided between the bottom of the base (2) and the substitute (1).

Images