An abutment superstructure sleeve for use in connecting a dental implant

Abstract

This utility model relates to the field of medical device technology and provides an upper sleeve for connecting artificial teeth abutments, comprising: a connecting abutment, a flat post, and a through-hole screw channel; the connecting abutment is located at the bottom of the sleeve; the flat post is assembled at the top of the abutment and has a flat cylindrical structure that gradually tapers from bottom to top; the screw channel connects the abutment and the flat post along the axis of the sleeve, and the inner wall of the screw channel is threaded; a storage mechanism is provided for placing the disassembled connecting abutment and the flat post. The upper sleeve for connecting artificial teeth provided by this solution, through the locking and fixing of the connecting abutment and the outer abutment, combined with the flat cylindrical structure that gradually tapers from bottom to top and its slightly bendable characteristic, reduces the amount of manual adjustment work and improves the angle and shape matching of the restoration, meeting the patient's needs for the aesthetics and function of the restoration.

Description

Technical Field

[0001] This utility model belongs to the field of medical supplies technology, and in particular relates to an upper sleeve of an abutment that can be used to connect artificial teeth. Background Technology

[0002] In current immediate dental implant restorations, the standard procedure involves placing a sleeve on the implant and implant abutment, then connecting the artificial tooth with resin or fabricating a temporary prosthesis. This process requires the dentist and clinical prosthodontist to first take an impression of the patient's mouth, transfer the intraoral conditions to a dental model, fabricate the prosthesis, confirm its shape, and then install the sleeve and prosthesis into the patient's mouth. This is to avoid repeated stimulation of the oral tissues, which could affect wound healing or cause the implant and attachments to loosen.

[0003] However, existing abutment upper sleeves have significant drawbacks. Their upper shape is mostly a cylindrical structure with ring-shaped grooves. When used for temporary restorations in the anterior region, this structure differs considerably from the dimensions of the artificial tooth base, requiring extensive manual adjustments to adapt to the natural shape of the restoration. This not only increases operational costs and time but also affects the retention stability of the final restoration. Furthermore, the cylindrical structure is insufficiently compatible with the tilt angle and tooth base morphology of the final restoration, making it difficult to meet the needs of patients with high aesthetic and functional requirements for the restoration. Utility Model Content

[0004] This invention provides an upper sleeve for connecting artificial teeth to an abutment, aiming to solve the problem of inconvenience in using artificial tooth restoration sleeves.

[0005] This utility model is implemented as follows: an upper sleeve for connecting artificial teeth includes: a connecting base, a flat post, and a through screw channel; the connecting base is located at the bottom of the sleeve; the flat post is assembled at the top of the base and has a flat post structure that gradually tapers from bottom to top; the screw channel connects the base and the flat post along the axis of the sleeve and has threads on its inner wall; and a storage mechanism is provided for placing the disassembled connecting base and the flat post.

[0006] Preferably, the storage mechanism includes: a combinable first outer shell and a second outer shell; a first inner shell and a second inner shell respectively disposed within the first outer shell and the second outer shell; the inner cavity shape of the first inner shell is adapted to the outer shape of the connecting base, and is used to place the disassembled connecting base; the inner cavity shape of the second inner shell is adapted to the outer shape of the flat column, and is used to place the disassembled flat column.

[0007] Preferably, the outer surface of the flat column is provided with bidirectional serrations; the bidirectional serrations include transverse serrations and longitudinal serrations.

[0008] Preferably, a limiting sleeve is fixedly fitted on the flat column, and the inner wall of the limiting sleeve is in contact with the outer surface of the flat column.

[0009] Preferably, the flat column has a through hole that extends radially through the limiting sleeve and is coaxial with the screw channel.

[0010] Preferably, magnet blocks are fixedly installed on the first shell and the second shell. There are at least two sets of magnet blocks. One set is fixed on the splicing end face of the first shell near the second shell, and the other set is fixed on the splicing end face of the second shell near the first shell. The two sets of magnet blocks have opposite magnetic properties and can attract each other.

[0011] Preferably, both the first inner shell and the second inner shell are provided with hand grooves, which are arc-shaped grooves adapted to allow fingers to be inserted to remove the connecting base from the first inner shell or the flat column from the second inner shell.

[0012] Compared with related technologies, the upper sleeve of the abutment for connecting artificial teeth provided by this utility model has the following advantages:

[0013] By locking and fixing the connecting abutment to the external abutment, combined with the gradually tapering flat cylindrical structure from bottom to top and its slightly bendable characteristics, the amount of manual adjustment is reduced and the angle and shape matching of the restoration is improved, meeting the patient's needs for the aesthetics and function of the restoration. The bidirectional serrated texture on the outer surface of the flat cylindrical increases the contact area with the resin, improving the retention stability of the artificial tooth. The combination of the limiting sleeve and the through hole further constrains the relative position of the artificial tooth and the flat cylindrical, enhancing the connection strength. Relying on the storage mechanism composed of the first outer shell, the second outer shell, the first inner shell, and the second inner shell, combined with the magnetic block adsorption fixation and the convenient access design of the hand groove, the connecting abutment and the flat cylindrical can be neatly stored and quickly retrieved, solving the problem of inconvenience in the use of existing sleeves and improving the efficiency and reliability of immediate dental implant restoration. Attached Figure Description

[0014] Figure 1 A three-dimensional structural diagram of an upper sleeve of an abutment for connecting artificial teeth provided by this utility model;

[0015] Figure 2 This is a side view of the structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 4 This is a bottom view of the structure of this utility model;

[0018] Figure 5 This is a side sectional view of the present invention.

[0019] Figure 6This is a schematic diagram showing the disassembled connection base and flat column of this utility model.

[0020] Reference numerals: 1. Connecting base; 2. Flat column; 3. Limiting sleeve; 4. Screw channel; 5. Thread; 6. Through hole; 7. First outer shell; 8. Second outer shell; 9. First inner shell; 10. Second inner shell; 11. Magnet block; 12. Hand groove. Detailed Implementation

[0021] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0022] This utility model embodiment provides an upper sleeve for connecting an abutment to an artificial tooth, such as... Figure 1-6 As shown, the upper sleeve of the abutment for connecting artificial teeth includes: a connecting abutment 1, a flat post 2, and a through screw channel 4; the connecting abutment 1 is located at the bottom of the sleeve; the flat post 2 is assembled at the top of the connecting abutment 1, and the flat post 2 has a flat post shape that gradually tapers from bottom to top; the screw channel 4 connects the abutment 1 and the flat post 2 through the sleeve axis, and the inner wall of the screw channel 4 is provided with threads 5; a storage mechanism is provided for placing the disassembled connecting abutment 1 and the flat post 2.

[0023] In this embodiment, the connecting base 1 and the external base are locked and fixed through the thread 5 on the inner wall of the screw channel 4, completing the installation of the sleeve at the base; then, according to the patient's dental arch condition, the size and angle of the artificial tooth are determined, and the flat post 2 is slightly bent (avoiding obvious creases) so that the angle of the flat post 2 matches the dental arch; then, a retention hole with a shape similar to that of the flat post 2 is drilled at the corresponding position of the artificial tooth, the artificial tooth is placed on the flat post 2, and the gap between the artificial tooth and the flat post 2 is filled with dental filling resin. After the resin cures, the artificial tooth and the sleeve are fixed.

[0024] When the sleeve needs to be disassembled for storage, the connecting base 1 and the flat column 2 are separated. The disassembled connecting base 1 is then placed into the corresponding storage position in the storage mechanism, and the disassembled flat column 2 is placed into another corresponding storage position in the storage mechanism. The storage mechanism enables the separate storage of the connecting base 1 and the flat column 2, making it convenient for subsequent use.

[0025] During use, the flat column 2, with its gradually tapering flat column structure from bottom to top, reduces the dimensional difference with the base of the artificial tooth, decreasing the workload of manual adjustments, shortening operation time, and minimizing the impact of adjustments on the retention stability of the restoration. The slightly bendable characteristic of the flat column 2 improves the matching with the inclination angle of the restoration and the shape of the tooth base, making it easier to meet the patient's aesthetic and functional needs for the restoration. The storage mechanism provides storage space for the disassembled connecting abutment 1 and flat column 2, enhancing the convenience of storing and retrieving the sleeve.

[0026] In a further preferred embodiment of the present invention, the storage mechanism includes: a combinable first outer shell 7 and a second outer shell 8; a first inner shell 9 and a second inner shell 10 respectively disposed within the first outer shell 7 and the second outer shell 8; the inner cavity shape of the first inner shell 9 is adapted to the outer shape of the connecting base 1 and is used to place the disassembled connecting base 1; the inner cavity shape of the second inner shell 10 is adapted to the outer shape of the flat column 2 and is used to place the disassembled flat column 2.

[0027] In this embodiment, when the sleeve needs to be disassembled for storage, the connecting base 1 and the flat column 2 are first disassembled, then the first outer shell 7 and the second outer shell 8 are separated. Then the disassembled connecting base 1 is placed into the first inner shell 9 inside the first outer shell 7, and the disassembled flat column 2 is placed into the second inner shell 10 inside the second outer shell 8. Finally, the first outer shell 7 and the second outer shell 8 are combined to complete the storage of the connecting base 1 and the flat column 2.

[0028] When using the sleeve components, first separate the first outer shell 7 and the second outer shell 8, then take out the connecting base 1 from the first inner shell 9 and the flat column 2 from the second inner shell 10. After that, the connecting base 1 and the outer base can be locked together by the thread 5 on the inner wall of the screw channel 4 in the conventional assembly method. Then, the angle of the flat column 2 is finely adjusted and the artificial tooth is connected to complete the assembly and use of the sleeve.

[0029] The inner cavity shape of the first inner shell 9 is adapted to the shape of the connecting base 1, and the inner cavity shape of the second inner shell 10 is adapted to the shape of the flat column 2, which can reduce the shaking of the connecting base 1 and the flat column 2 during storage and reduce the risk of component wear. The combinable first outer shell 7 and second outer shell 8 allow the storage mechanism to separately store the disassembled connecting base 1 and flat column 2, improve the neatness of the sleeve component storage, and facilitate the quick and easy retrieval of components for subsequent assembly.

[0030] In a further preferred embodiment of the present invention, the outer surface of the flat column 2 is provided with bidirectional serrated patterns; the bidirectional serrated patterns include transverse serrations and longitudinal serrations.

[0031] In this embodiment, the connecting base 1 and the external base are first locked together by the thread 5 on the inner wall of the screw channel 4. The flat post 2 is slightly bent to adapt the angle according to the dental arch conditions. Then, a retention hole with a shape similar to that of the flat post 2 is drilled at the corresponding position of the artificial tooth. The artificial tooth is placed on the flat post 2 so that the bidirectional serrations (transverse serrations and longitudinal serrations) on the outer surface of the flat post 2 fits the inner wall of the retention hole. Then, dental filling resin is used to fill the gap. After the resin cures, the fixation is completed.

[0032] When filling with resin, the transverse and longitudinal serrations of the bidirectional serration pattern can increase the contact area between the resin and the flat post 2, allowing the resin to fill the gaps between the serrations more fully, forming a more stable bonding structure, reducing the possibility of loosening of the artificial tooth in subsequent use, and at the same time, there is no need to perform additional treatment on the surface of the flat post 2 to enhance retention, simplifying the operation steps.

[0033] Compared to existing cylindrical structures with ring-shaped serrations, the bidirectional serrations on the outer surface of the flat column 2 can reduce the amount of manual adjustment and shorten the fabrication time of the restoration when adapting to the shape of the artificial tooth base. Moreover, the serration structure combining horizontal and vertical directions can improve the restraint effect on the artificial tooth from different directions, improve the retention stability of the restoration, and more easily meet the usage needs of scenarios with high requirements for restoration retention, such as the anterior teeth area.

[0034] In a further preferred embodiment of the present invention, a limiting sleeve 3 is fixedly sleeved on the flat column 2, and the inner wall of the limiting sleeve 3 is in contact with the outer surface of the flat column 2.

[0035] In this embodiment, during the assembly of the sleeve and the artificial tooth, the connecting base 1 and the external base are first locked together by the thread 5 on the inner wall of the screw channel 4. The flat column 2 is slightly bent to adapt the angle according to the tooth row conditions. Then, the limiting sleeve 3 is put into the top of the flat column 2 so that the inner wall of the limiting sleeve 3 is completely in contact with the outer surface of the flat column 2, ensuring that the limiting sleeve 3 is in a stable state on the flat column 2. Then, a retention hole with a shape equivalent to that of the limiting sleeve 3 is drilled at the corresponding position of the artificial tooth, and the artificial tooth is placed on the outside of the limiting sleeve 3.

[0036] In a further preferred embodiment of the present invention, a through hole 6 is provided on the flat column 2, the through hole 6 extends radially through the limiting sleeve 3, and the through hole 6 is coaxially arranged with the screw channel 4.

[0037] In this embodiment, after the artificial tooth is installed, an auxiliary fixing component (such as a fine screw or a positioning pin) can be passed through the through hole 6 and inserted into the screw channel 4 to further enhance the connection stability between the limiting sleeve 3 and the flat column 2, and prevent the limiting sleeve 3 from rotating or shifting during use. Then, dental filling resin is used to fill the gap between the artificial tooth and the limiting sleeve 3. After the resin cures, the auxiliary fixing component and the resin work together to improve the overall connection strength between the artificial tooth and the sleeve.

[0038] In a further preferred embodiment of the present invention, preferably, magnet blocks 11 are fixedly installed on the first outer shell 7 and the second outer shell 8. There are at least two sets of magnet blocks 11, one set is fixed on the splicing end face of the first outer shell 7 near the second outer shell 8, and the other set is correspondingly fixed on the splicing end face of the second outer shell 8 near the first outer shell 7. The two sets of magnet blocks 11 have opposite magnetic properties and can attract each other.

[0039] In this embodiment, when storing the connecting base 1 and the flat column 2, the disassembled connecting base 1 is first placed into the first inner shell 9 inside the first outer shell 7, and the disassembled flat column 2 is placed into the second inner shell 10 inside the second outer shell 8; then the splicing end faces of the first outer shell 7 and the second outer shell 8 are brought close to each other, so that the magnet 11 on the first outer shell 7 and the corresponding magnet 11 on the second outer shell 8 generate an attraction force due to opposite magnetism, which drives the first outer shell 7 and the second outer shell 8 to complete the splicing, thereby realizing the storage of the connecting base 1 and the flat column 2;

[0040] When it is necessary to remove the connecting base 1 and the flat post 2, apply force in opposite directions to separate the first outer shell 7 and the second outer shell 8. The attraction force of the two sets of magnets 11 with opposite magnetic properties is overcome, so that the first outer shell 7 and the second outer shell 8 can be separated smoothly. Then, the connecting base 1 is taken out from the first inner shell 9 and the flat post 2 is taken out from the second inner shell 10. Then, the connecting base 1 and the outer base are locked through the screw channel 4 according to the conventional steps to carry out the subsequent artificial tooth connection operation.

[0041] In a further preferred embodiment of the present invention, both the first inner shell 9 and the second inner shell 10 are provided with hand grooves 12. The hand grooves 12 are arc-shaped grooves that are adapted to allow fingers to be inserted to remove the connecting base 1 from the first inner shell 9 or the flat column 2 from the second inner shell 10.

[0042] In this embodiment, when taking the disassembled and stored connecting base 1, the first outer shell 7 and the second outer shell 8 are first separated. Then, a finger is inserted into the arc-shaped hand groove 12 on the first inner shell 9, and force is applied in a direction away from the first inner shell 9 to drive the connecting base 1 out of the first inner shell 9. When taking the flat column 2, a finger is inserted into the hand groove 12 on the second inner shell 10 in the same way, and force is applied to remove the flat column 2 from the second inner shell 10, in preparation for the subsequent sleeve assembly.

[0043] When the connecting base 1 and the flat column 2 need to be placed into the storage mechanism, first place the connecting base 1 into the opening of the first inner shell 9, and then place the flat column 2 into the opening of the second inner shell 10. Since the hand groove 12 is an arc-shaped groove, it will not obstruct the process of placing the parts. After placement, the parts can be observed through the hand groove 12 to ensure that the connecting base 1 and the flat column 2 are in a stable state in the first inner shell 9 and the second inner shell 10.

[0044] The hand groove 12 provides a force point for removing the connecting base 1 and the flat column 2, avoiding the situation where it is difficult to remove the first inner shell 9 and the second inner shell 10 are tightly attached to the component, thus simplifying the retrieval operation; at the same time, the arc structure adapts to the shape of the fingers, reducing the friction between the fingers and the inner shell during the retrieval process, improving the ease of use, and better meeting the daily storage and retrieval needs of the sleeve component.

[0045] In summary, compared with related technologies, by locking and fixing the connecting abutment 1 to the external abutment, combined with the gradually tapering flat column structure of the flat column 2 from bottom to top and its slightly bendable characteristics, the amount of manual adjustment is reduced and the angle and shape matching of the restoration is improved, meeting the patient's needs for the aesthetics and function of the restoration; the bidirectional serrations on the outer surface of the flat column 2 increase the contact area with the resin, improving the retention stability of the artificial tooth; the cooperation of the limiting sleeve 3 and the through hole 6 further constrains the relative position of the artificial tooth and the flat column 2, enhancing the connection strength; relying on the storage mechanism composed of the first outer shell 7, the second outer shell 8, the first inner shell 9, and the second inner shell 10, combined with the adsorption and fixation of the magnet block 11 and the convenient access design of the hand groove 12, the connecting abutment 1 and the flat column 2 can be neatly stored and quickly accessed, solving the problem of inconvenience in the use of existing sleeves and improving the efficiency and reliability of immediate dental implant restoration.

[0046] It should be understood, in the several embodiments provided in this application, that the disclosed apparatus may be implemented in other ways.

[0047] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. An upper sleeve for connecting an abutment to an artificial tooth, characterized in that, include: Connecting base (1), flat column (2) and through screw channel (4); The connecting base (1) is located at the bottom of the sleeve; The flat column (2) is assembled at the top of the connecting base (1), and the flat column (2) has a flat column structure that gradually tapers from bottom to top; The screw channel (4) passes through the base (1) and the flat column (2) along the sleeve axis, and the inner wall of the screw channel (4) is provided with threads (5); A storage mechanism for placing the disassembled connecting base (1) and the flat column (2).

2. The superstructure sleeve for use in connecting a dental implant according to claim 1, wherein, The storage mechanism includes: The first shell (7) and the second shell (8) are combinable; A first inner shell (9) and a second inner shell (10) are respectively disposed inside the first outer shell (7) and the second outer shell (8); The inner cavity shape of the first inner shell (9) is adapted to the outer shape of the connecting base (1) and is used to place the disassembled connecting base (1); The inner cavity shape of the second inner shell (10) is adapted to the shape of the flat column (2) and is used to place the disassembled flat column (2).

3. The superstructure sleeve for use in connecting a dental implant according to claim 1, wherein The outer surface of the flat column (2) is provided with bidirectional sawtooth patterns; the bidirectional sawtooth patterns include transverse sawtooth patterns and longitudinal sawtooth patterns.

4. The superstructure sleeve for use in connecting a dental implant according to claim 1, wherein A limiting sleeve (3) is fixedly sleeved on the flat column (2), and the inner wall of the limiting sleeve (3) is in contact with the outer surface of the flat column (2).

5. The superstructure for use in connecting a dental implant according to claim 1, wherein The flat column (2) has a through hole (6) which penetrates radially along the limiting sleeve (3) and is coaxial with the screw channel (4).

6. The superstructure for use in connecting a dental implant according to claim 2, wherein Magnet blocks (11) are fixedly installed on the first shell (7) and the second shell (8). There are at least two sets of magnet blocks (11). One set is fixed on the splicing end face of the first shell (7) near the second shell (8), and the other set is fixed on the splicing end face of the second shell (8) near the first shell (7). The two sets of magnet blocks (11) have opposite magnetism and can attract each other.

7. The superstructure for use in connecting a dental implant according to claim 2, wherein Both the first inner shell (9) and the second inner shell (10) are provided with hand grooves (12). The hand grooves (12) are arc-shaped grooves that are adapted to insert fingers to remove the connecting base (1) from the first inner shell (9) or the flat column (2) from the second inner shell (10).

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