An expandable dental implant with an integrated abutment and implant section

Abstract

This utility model relates to an expandable dental implant with an integrated abutment and implant section, comprising an expandable implant body, a lower expansion block, and a vertical screw. The vertical screw is inserted into the expandable implant body and then locked onto the lower expansion block. A key feature is the inclusion of a vertical fixing screw with a small screw hole into which the vertical fixing screw is screwed. An installation direction indicator is also provided on the top surface of the expandable implant body. This expandable dental implant, by providing an installation direction indicator, allows dentists to easily and quickly determine the expansion position of the implant, greatly improving installation accuracy and avoiding jawbone trauma caused by incorrect expansion positioning. This significantly ensures the safety of this type of dental implant, facilitates installation, and greatly improves the efficiency of denture installation.

Description

Technical Field

[0001] This utility model relates to the field of dental implants, and in particular to an expandable dental implant with an integrated abutment and implant section. Background Technology

[0002] Currently, to achieve dental implantation, most procedures first involve cutting open the gum at the site of the lost tooth, drilling a hole in the jawbone, screwing in a threaded dental implant, and waiting for the gum wound to heal before attaching the implant. This method of implantation, because it uses screws to engage with the jawbone for fixation, can easily generate small bone fragments that remain in the hole during the screwing process. These fragments, having already separated from the jawbone, lose their vitality and are prone to necrosis, leading to inflammation, swelling, and pain. Furthermore, current threaded dental implants rely on the four-sided engagement of the threads with the jawbone for fixation. However, due to the varying thickness of the jawbone on both sides, this four-sided engagement method can easily cause lateral fractures in the jawbone, resulting in fundamental trauma that is difficult to repair. Ultimately, this leads to an unstable implant placement and a tendency for the implant to loosen.

[0003] To address this technical challenge, the applicant filed a patent application with the China National Intellectual Property Administration on July 4, 2019, entitled "An Integrated Expandable Dental Implant Device with Upper and Lower Expansion." This device primarily consists of an integrally molded expandable implant body, a lower expansion block, vertical screws, and horizontal screws. During installation in the jawbone cavity, the expandable implant body expands and presses tightly against the cavity wall surface to achieve fixation. This installation method is not only highly secure but also avoids damage to the cavity wall in the jawbone, prevents the generation of bone fragments, and is less likely to induce inflammation and swelling. It effectively reduces the pain of implant patients and prevents secondary or repeated traumatic injuries and suffering. While the applicant's previous solution effectively prevented patients from suffering secondary trauma, it had the following shortcomings in practical application: The thickness of the two sides of the human alveolar bone varies in the transverse direction, with the latter being thinner and more fragile. Although the expansion block's expansion direction is singular, it is completely hidden within the hole created in the alveolar bone. Dentists cannot accurately determine whether the expansion block is expanding longitudinally or transversely towards the alveolar bone, thus preventing them from adjusting it to the correct direction. If it expands transversely, it's incorrect, potentially causing the alveolar bone to fracture; if it expands longitudinally, it's correct. However, with the expansion block completely hidden, how to enable dentists to quickly and accurately determine its expansion direction to avoid unnecessary harm to the patient is a significant deficiency of the applicant's original solution (i.e., the aforementioned solution).

[0004] Secondly, this method uses a horizontally locked screw to expand the upper end of the implant body and press it tightly against the inner wall of the denture, achieving a stable connection between the denture and the implant body. However, the horizontally locked screw design is limited by the cheek muscles on both sides of the mouth, resulting in very limited horizontal operating space, making the operation difficult and the installation efficiency low. Furthermore, the horizontal screw holes on the side of the denture and the horizontal screw holes on the implant body are difficult to align, making it difficult for the screws to pass through these two holes, further complicating installation and affecting efficiency. Based on these shortcomings, the applicant believes that this type of dental implant device needs further improvement to provide patients with a truly economical, efficient, and comfortable dental reimplantation experience. Utility Model Content

[0005] The purpose of this invention is to solve the above-mentioned problems and shortcomings by providing an expandable dental implant with an integrated abutment and implant body. This expandable dental implant, by setting installation direction indicators, allows dentists to conveniently and quickly determine the expansion position of the implant, greatly improving the accuracy of installation and avoiding jawbone trauma caused by incorrect expansion position, thus greatly ensuring the safety of this type of dental implant. Furthermore, by vertically locking in small vertical fixing screws, the denture is directly fixed to the expandable implant body, which provides sufficient operating space and makes the insertion and alignment of the small vertical fixing screws very easy, making installation convenient and greatly improving the installation efficiency of the denture.

[0006] The technical solution of this utility model is implemented as follows: an expandable dental implant with an integrated abutment and implant part includes an expandable implant body with a wedge-shaped main inclined surface and a vertical through hole, a lower expansion block with a wedge-shaped auxiliary inclined surface, and a vertical screw. The wedge-shaped auxiliary inclined surface fits together with the wedge-shaped main inclined surface, and a guide structure is provided between the wedge-shaped auxiliary inclined surface and the wedge-shaped main inclined surface. The vertical screw is inserted into the vertical through hole and locked onto the lower expansion block. The feature is that it also includes a vertical fixing screw, and a small screw hole is provided in the middle of the vertical direction of the vertical screw. The vertical fixing screw is screwed into the small screw hole. An installation direction indicator is also provided on the top surface of the expandable implant body to indicate the expansion direction of the lower expansion block.

[0007] Preferably, the guide structure is composed of a guide groove and a guide protrusion.

[0008] Preferably, the top surface of the expansion planting body is also provided with a storage groove for storing the upper end of the vertical screw, and the top surface of the vertical screw is set at the same horizontal plane as the top surface of the expansion planting body.

[0009] Preferably, the surfaces of the expanding planting body and the lower expanding block are made into non-slip granular surfaces.

[0010] Preferably, the expanding planting body and the lower expanding block are further provided with a number of transverse micropores.

[0011] Preferably, the diameter of the lower expansion block is the same as the diameter of the expansion planting body.

[0012] The beneficial effects of this utility model are: (1) This utility model provides an installation direction indicator on the top surface of the expansion implant body to indicate the expansion direction of the lower expansion block. This allows for rapid observation of the expansion direction of the lower expansion block even after it is hidden within the alveolar bone cavity during installation. This enables quick and precise adjustment of the expansion direction to the longitudinal part of the alveolar bone cavity, effectively ensuring accurate installation positioning. The expansion force point is controlled and falls on the longitudinal direction of the alveolar bone, rather than the transverse direction, preventing secondary trauma to the patient's alveolar bone. Furthermore, it greatly ensures the stability and safety of the implant, providing patients with a very economical, efficient, and comfortable reimplantation experience, saving them time and money.

[0013] (2) Because a small screw hole is provided in the middle of the vertical position of the vertical screw, and the vertical fixing screw is screwed into the small screw hole, the denture can be directly fixed to the expandable implant body by locking the vertical fixing screw in vertically. This structural design not only provides sufficient operating space, but also makes it very easy to observe the position of the small screw hole, making it very easy to insert and align the vertical fixing screw, and the installation is very convenient, greatly improving the installation efficiency of the denture. At the same time, the locking of the vertical fixing screw ensures that the denture can be firmly, reliably and safely fixed to the expandable implant body, and is not easy to loosen.

[0014] (3) The product adopts an integrated, smooth design, which allows for adjustments to the implantation depth and the depth of the denture crown set according to the actual condition of the jawbone during the implantation process, greatly facilitating and meeting the actual operational requirements of dentists. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the expandable dental implant of this utility model.

[0016] Figure 2 This is a schematic diagram showing the disassembled structure of the expandable dental implant of this utility model.

[0017] Figure 3 This is a schematic diagram of the installation structure of the expandable dental implant and the denture according to this utility model.

[0018] Figure 4 This is a schematic diagram showing the utility model in use when installed on the dental arch. Detailed Implementation

[0019] like Figure 1 and Figure 2As shown, the present invention discloses an expandable dental implant with an integrated abutment and implant section, comprising an expandable implant body 1 with a wedge-shaped main inclined surface 11 and a vertical through-hole 12, a lower expansion block 2 with a wedge-shaped auxiliary inclined surface 21, and a vertical screw 3. The wedge-shaped auxiliary inclined surface 21 is fitted together with the wedge-shaped main inclined surface 11, and a guide structure 4 is provided between the wedge-shaped auxiliary inclined surface 21 and the wedge-shaped main inclined surface 11. The vertical screw 3 is inserted into the vertical through-hole 12 and locked onto the lower expansion block 2. To achieve the purpose proposed by the present invention, the present invention also includes a vertical fixing screw 5. A small screw hole 31 is provided in the middle of the vertical direction of the vertical screw 3, and the vertical fixing screw 5 is screwed into the small screw hole 31. An installation direction indicator 10 for indicating the expansion direction of the lower expansion block 2 is also provided on the top surface of the expandable implant body 1. Figure 4 As shown, this invention, by setting an installation direction indicator 10, allows for rapid observation of the expansion direction of the lower expansion block 2. This enables quick and precise adjustment of the expansion direction of the lower expansion block 2 to the longitudinal part of the jawbone cavity, greatly improving installation accuracy and avoiding secondary or repeated trauma and pain for the patient. Furthermore, by vertically locking in the vertical fixing screws 5, the denture is directly fixed to the expandable implant body 1, providing ample operating space. The placement of the vertical fixing screws 5 is also very easy, making installation convenient and significantly improving the efficiency of denture installation. In practical applications, the installation direction indicator 10 can be laser-engraved on the top surface of the expandable implant body 1.

[0020] To prevent the lower expansion block 2 from shifting or displacing during locking and expansion, such as... Figure 2 As shown, the guide structure 4 is composed of a guide groove 41 and a guide protrusion 42, which are nested together. The positions of the guide protrusion 42 and the guide groove 41 on the wedge-shaped secondary inclined surface 21 and the wedge-shaped main inclined surface 11 are interchangeable. For example... Figure 2 As shown, in this embodiment, the guide oblique protrusion 42 is formed on the expansion planting body 1, and the guide oblique groove 41 is formed on the lower expansion block 2 as an example scheme.

[0021] To ensure that vertical screw 3 does not interfere with the denture assembly, such as... Figure 2 and Figure 3 As shown, the top surface of the expandable implant body 1 is also provided with a storage groove 111 for storing the upper end of the vertical screw 3, and the top surface of the vertical screw 3 is set at the same horizontal plane as the top surface of the expandable implant body 1. This can prevent the vertical screw 3 from protruding from the top surface of the expandable implant body 1, avoiding any impact on the denture fitting, which is very practical and reliable.

[0022] To further enhance the frictional fixing force of this invention during planting applications and prevent slippage, such as Figure 1 As shown, the surfaces of the expansion implant body 1 and the lower expansion block 2 are made into anti-slip granular surfaces 6. The design of the anti-slip granular surfaces 6 allows for better fixation of the dental implant structure between the prosthesis and the implant hole, increasing the coefficient of friction and preventing slippage or insecure fixation.

[0023] To prevent bone calcification at the implant site after dental implantation, such as... Figure 1 and Figure 2 As shown, the expansion implant body 1 and the lower expansion block 2 are also provided with several transverse micropores 7. This can effectively prevent blood blockage and prevent bone calcification due to long-term lack of blood flow.

[0024] In order to ensure that this dental implant structure can be more securely installed in the cavity of the jawbone, such as Figure 1 As shown, the diameter of the lower expansion block 2 is the same as the diameter of the expansion implant body 1. This structural design allows the dental implant structure to be directly embedded into the bottom of the jawbone cavity, increasing the contact area with the cavity and improving the stability of the installation.

[0025] In practical applications, such as Figure 3 As shown, after the denture is fixed on the expansion implant body 1, the holes on the denture for the vertical fixing screws 5 to pass through can be filled with existing dental filling techniques to avoid the accumulation of dirt and ensure oral hygiene and health.

Claims

1. An expandable dental implant with an integrated abutment and implant section, comprising an expandable implant body (1) with a wedge-shaped main inclined surface (11) and a vertical insertion hole (12), a lower expansion block (2) with a wedge-shaped secondary inclined surface (21), and a vertical screw (3), wherein the wedge-shaped secondary inclined surface (21) is fitted together with the wedge-shaped main inclined surface (11), and a guide structure (4) is provided between the wedge-shaped secondary inclined surface (21) and the wedge-shaped main inclined surface (11), and the vertical screw (3) is inserted into the vertical insertion hole (12) and locked onto the lower expansion block (2), characterized in that: It also includes a vertical fixing screw (5), and the vertical screw (3) is provided with a screw hole (31) in the middle of the vertical direction, and the vertical fixing screw (5) is screwed into the screw hole (31). The top surface of the expansion planting body (1) is also provided with an installation direction indicator (10) for indicating the expansion direction of the expansion block (2).

2. The abutment-integrated expanded dental implant according to claim 1, wherein: The guide structure (4) is composed of a guide groove (41) and a guide protrusion (42).

3. The abutment-integrated expanded dental implant according to claim 1, wherein: The top surface of the expansion planting body (1) is also provided with a storage groove (111) for storing the upper end of the vertical screw (3), and the top surface of the vertical screw (3) and the top surface of the expansion planting body (1) are set at the same horizontal plane.

4. The expandable dental implant with integrated abutment and implant portion as described in claim 1, characterized in that: The surfaces of the expanded planting body (1) and the lower expanded block (2) are made into anti-slip granular surfaces (6).

5. The abutment-integrated expanded dental implant according to claim 1, wherein: The expansion planting body (1) and the lower expansion block (2) are also provided with several transverse micropores (7).

6. The expandable dental implant with integrated abutment and implant portion as described in claim 1, characterized in that: The diameter of the lower expansion block (2) is the same as the diameter of the expansion planting body (1).

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