Degradable biological tent nail for increasing dental implant bone

Abstract

The utility model relates to the technical field of dental nails, in particular to a degradable biological tent nail for increasing dental implant bone, which is made of biodegradable materials and comprises a threaded portion, a tent cap and a self-tapping tip, the tent cap and the self-tapping tip are arranged on different sides of the threaded portion, and the self-tapping tip is connected to the end of the threaded portion. The thread part is connected with the tent cap through a connecting part, a hollow part is reserved in the tent cap for filling and observing the height of bone meal, and an assembling groove is reserved in the tent cap for screwing operation of a screwing screw part. According to the degradable biological tent nail for increasing the dental implant bone, the degradable polylactic acid bone nail does not need to be taken out after the dental implant bone is increased and healed in clinical use, so that the operation cost is reduced; the hollowed-out design of the top of the tent nail facilitates observation of the height of bone meal, and the clinical operation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tooth nails, in particular to a degradable biological tent nail used for implanting tooth bone augmentation. Background Art

[0002] Oral implant tent nail technology uses tent nails (which look like thumbtacks) to provide and maintain bone formation space, which can improve the effect of bone augmentation. The technology has low sensitivity. As another treatment method for bone augmentation, it has attracted widespread attention from dentists and achieved remarkable results in clinical practice.

[0003] Chinese patent publication number CN208864525U, titled "A tent screw for mandibular bone grafting," comprises a body comprising a threaded section that screws into the mandible and a disc that secures bone powder within the bone defect and supports the grafting space. The disc is secured to the end of the screw. The tent screw is implanted directly into the mandible and then removed a second time. This tent screw is not connected to the dental implant, increasing soft tissue damage during the second surgical removal. The tent screw body has a diameter of 1.5-2 mm and limited support strength.

[0004] The edges of the tent pegs caused secondary damage to the patient's surrounding gums, and the triangular cone end of the implant damaged the underlying bone.

[0005] Separately, Chinese patent publication number CN219332013U describes a dental implant tent peg. The top of the implant tent peg features a hexagonal recessed slot for a hexagonal torque driver. The implant tent peg includes a tent top plate and a compatible threaded body that is threadedly connected to the dental implant. While the tent peg can be connected to the dental implant and provides space for bone powder filling, it is difficult to control the amount of bone powder added.

[0006] Based on the problems in the prior art, the utility model provides a degradable biological tent peg for dental implant bone augmentation. Utility Model Content

[0007] The purpose of the utility model is to provide a biodegradable tent nail for dental implant bone augmentation, so as to solve the technical problems in the prior art that the tent nail needs to be removed twice, which may easily cause secondary damage, and the amount of bone powder filled is difficult to observe and control.

[0008] The technical solution of the utility model is: a degradable bio-type tent nail for dental implant bone augmentation, the bio-type tent nail is made of biodegradable material, including a threaded portion, and a tent cap and a self-tapping tip arranged on opposite sides of the threaded portion, the self-tapping tip is connected to the end of the threaded portion, the threaded portion is connected to the tent cap through a connecting portion, and the tent cap has a hollow portion reserved for filling and observing the height of bone powder.

[0009] Preferably, the tent cap is constructed by combining a bottom ring seat and at least two vertical plates, the vertical plates are cross-arranged and extend outward in all directions, and the hollow areas formed between adjacent vertical plates constitute the hollow portion;

[0010] The bottom end surface of the bottom ring seat is lower than and partially overlaps the top end surface of the connecting portion, or the bottom end surface of the bottom ring seat is flush with the top end surface of the connecting portion;

[0011] In the coaxial end face, the part of the hollow portion that extends beyond the end face area of ​​the connecting portion forms a window for observing the height of the bone powder, and an assembly groove is constructed in the intersection area of ​​the vertical plate near the center of the end face of the connecting portion. The assembly groove can be constructed into any shape that imitates the operating end of the screw-tightening component to facilitate the insertion and operation of the screw-tightening component.

[0012] Preferably, the tent cap is dome-shaped as a whole, and is constructed by a bottom ring seat and two cross-shaped ribs, and the bottom of the ribs is connected to the bottom ring seat as a whole;

[0013] The top profile of the ribs is arc-shaped, and the two ribs divide the dome-shaped top surface into four parts. There is a hollow space between adjacent ribs, and the hollow space is connected to the cavity in the bottom ring seat to form a through portion;

[0014] The ribs extend outward from the side wall of the connecting portion, and the maximum diameter of the bottom ring seat is not less than the diameter of the connecting portion;

[0015] Grooves are provided along the center line of the top profile of the ribs, and the intersecting grooves form a cross-shaped groove for a screwdriver to be inserted into.

[0016] Preferably, the tent cap includes a cylindrical shell with an assembly platform at the inner center, a central groove is provided on the assembly platform, and a support plate extends from the outer wall of the central groove to the surrounding areas and is connected to the inner wall of the tent cap; the bottom plane of the tent cap is flush with the top end face of the connecting part; adjacent support plates are hollowed out to form observation windows.

[0017] Preferably, the diameter of the connecting portion is 5-7 mm, and the diameter of the tent cap is 7-9 mm.

[0018] Preferably, the column diameter of the connecting portion is 6 mm, and the maximum diameter of the tent cap is 8 mm.

[0019] Preferably, the thread direction of the threaded portion is toward the tip side, the length of the threaded portion is 4-6 mm, and the thread pitch of the threaded portion is 0.8 mm.

[0020] Preferably, the self-tapping tip is a conical tip with self-tapping properties, capable of embedding the tent peg into the alveolar bone base, and at least half the length of the threaded portion is embedded in the alveolar bone base.

[0021] Preferably, the connecting portion and the threaded portion are connected as one body, and are cylindrical in shape as a whole, and the rod surface of the connecting portion is smooth.

[0022] Compared with the prior art, the advantages of the present invention are:

[0023] (1) The present application provides a biodegradable tent nail for dental implant bone augmentation. The biodegradable tent nail adopts a biodegradable polylactic acid bone nail. In clinical use, the dental implant bone augmentation does not need to be removed by a secondary operation after healing, thereby avoiding secondary damage to the patient and reducing the cost of surgery.

[0024] (2) The hollow design of the top of the tent peg helps to observe the height of bone powder and improve clinical operation efficiency.

[0025] (3) There is a mounting groove on the top of the tent peg for easy screwing and fixing. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0027] Figure 1 This is a schematic diagram of the three-dimensional structure of the axial side of the first embodiment of the present utility model;

[0028] Figure 2 This is a side structural diagram of the first embodiment of the present invention;

[0029] Figure 3 This is a schematic diagram of the top view of the first embodiment of the present invention;

[0030] Figure 4 This is a schematic diagram of the three-dimensional structure of the second axis side of the embodiment of the utility model;

[0031] Figure 5 This is a side structural diagram of the second embodiment of the present utility model;

[0032] Figure 6 This is a schematic top view of the structure of the second embodiment of the present utility model;

[0033] Wherein: 1-(a / b), tent cap; 2, connecting part; 3, threaded part; 4, self-tapping tip;

[0034] 11. Vertical plate; 12. Bottom ring seat; 13. Hollow portion; 14. Assembly groove; 15. Assembly table;

[0035] 111, rib plate; 112, support plate; 121, bottom ring seat; 122, ring cylindrical shell;

[0036] 131. Penetrating portion; 132. Observation window; 141. Groove; 142. Center groove. DETAILED DESCRIPTION

[0037] The following is a further detailed description of the present invention in conjunction with specific embodiments:

[0038] like Figure 1 As shown, a biodegradable tent peg for dental implant bone augmentation is made of polylactic acid (PLA). Polylactic acid, also known as polylactide, is a polyester polymer obtained by polymerization of lactic acid as the main raw material. It is a new type of biodegradable material.

[0039] A tent peg made of polylactic acid consists of a self-tapping tip 4, a threaded portion 3, a connecting portion 2, and a tent cap 1, from the bottom tip to the top cap. The self-tapping tip 4 is connected to the end of the threaded portion 3, which is connected to the tent cap 1 via the connecting portion 2. The tent cap 1 has a hollow portion 13 for filling and monitoring bone powder levels. The tent peg is used with a screwdriver, such as a screwdriver.

[0040] The self-tapping tip 4 is a tapered, self-drilling screwdriver. The screw, in conjunction with the tent cap, is tightened to insert the tent peg into the alveolar bone base, ensuring that at least half the length of the threaded portion 3 is embedded in the alveolar bone base. The connecting portion 2 and the threaded portion 3 are integrally connected, forming a cylindrical shape. The connecting portion 2 has a smooth surface.

[0041] The diameter of the connecting portion 2 is in the range of 5-7 mm, and the diameter of the tent cap 1 is in the range of 7-9 mm. The thread direction of the threaded portion 3 is toward the tip side, and the length of the threaded portion 3 is 4-6 mm. Figure 1 The dimensions of the tent peg provided in this application are as follows: the cylindrical diameter of the connecting portion 2 is 6 mm, the maximum diameter of the tent cap 1 is 8 mm, and the thread pitch of the threaded portion 3 is 0.8 mm.

[0042] Among them, the tent cap 1 is constructed by combining a bottom ring seat 12 and at least two vertical plates 11. The bottom end surface of the bottom ring seat 12 is lower than the top end surface of the connecting part 2 and partially overlaps, or the bottom end surface of the bottom ring seat 12 is flush with the top end surface of the connecting part 2.

[0043] The vertical plates 11 are arranged crosswise and extend outward in all directions. The hollow areas formed between adjacent vertical plates 11 are combined to form a hollow portion 13. In the coaxial end face, the portion of the hollow portion 13 that extends beyond the end face of the connecting portion 2 forms a window for observing the height of the bone powder. An assembly groove 14 is constructed in the intersection area of ​​the vertical plates 11 near the center of the end face of the connecting portion 2.

[0044] The mounting groove 14 can be configured in any shape that aligns with the operating end of the screw component, allowing for insertion and operation of the screw component. Using a matching screwdriver, insert the screw into the cross groove and firmly screw the tent peg into the corresponding alveolar bone approximately 3-5 mm. Then, place an appropriate amount of bone powder under the tent peg, externalize the periosteum, relieve soft tissue tension, and suture to stop bleeding and prevent soft tissue tearing.

[0045] In one or more embodiments, Figure 1 Combined with attachment Figure 2 As shown, the overall physical structure of the tent cap 1a is constructed by a bottom ring seat 121 and two cross-ribs 111, and the bottom of the rib 111 is connected to the bottom ring seat 121 as a whole; the outer edge of the bottom ring seat 121 is circular, and the top contour of the rib 111 is arc-shaped, and the supported top surface is dome-shaped as a whole. The two ribs 111 divide the dome-shaped top surface into four parts, and the adjacent ribs 111 are hollowed out, and the hollow space is connected to the cavity in the bottom ring seat 121 to form a through portion 131 for observation.

[0046] As attached Figure 3 As shown, a groove 141 is opened along the center line of the top profile of the rib 111, and the intersecting grooves 141 form a cross-shaped groove structure for the screwdriver to be inserted.

[0047] In one or more embodiments, see the attached Figure 4 Combined with attachment Figure 5 The tent cap 1b includes a cylindrical shell 122 with an assembly platform 15 in the center. A central groove 142 is provided on the assembly platform 15. Support plates 112 extend from the outer wall of the central groove 142 to the surrounding area and connect to the inner wall of the tent cap 1b. The bottom plane of the tent cap 1b is flush with the top end surface of the connecting portion 2. The spaces between adjacent support plates 112 are hollowed out to form observation windows 132. The central groove 142 can be designed into any shape that conforms to the operating end of the screw-tightening component. Figure 6 As shown in the top view, the center groove 142 is configured as an octagon, which matches and limits the operating end of the screw-tightening component to facilitate force application.

[0048] The present application discloses a biodegradable tent nail for dental implant bone augmentation. The biodegradable polylactic acid bone nail is used to augment the dental implant. In clinical use, the nail does not require secondary surgery to remove the nail after healing, thereby reducing surgical costs. The hollow design on the top of the tent nail helps to observe the height of bone powder and improve clinical operation efficiency.

[0049] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it accordingly, and they are not intended to limit the scope of protection of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A biodegradable tent peg for dental implant bone augmentation, characterized in that: This biological tent peg is made of biodegradable material and includes a threaded portion, a tent cap and a self-tapping tip arranged on opposite sides of the threaded portion. The self-tapping tip is connected to the end of the threaded portion, and the threaded portion is connected to the tent cap via a connecting portion. The tent cap has a hollow portion reserved for filling and observing the height of bone powder.

2. The biodegradable tent peg for dental implant bone augmentation according to claim 1, characterized in that: The tent cap is constructed by combining a bottom ring base and at least two vertical plates, the vertical plates are cross-arranged and extend outward in all directions, and the hollow areas formed between adjacent vertical plates constitute the hollow portion; The bottom end surface of the bottom ring seat is lower than and partially overlaps the top end surface of the connecting portion, or the bottom end surface of the bottom ring seat is flush with the top end surface of the connecting portion; In the coaxial end face, the part of the hollow portion that extends beyond the end face area of ​​the connecting portion forms a window for observing the height of the bone powder, and an assembly groove is constructed in the intersection area of ​​the vertical plate near the center of the end face of the connecting portion. The assembly groove can be constructed into any shape that imitates the operating end of the screw-tightening component to facilitate the insertion and operation of the screw-tightening component.

3. The biodegradable tent peg for dental implant bone augmentation according to claim 2, characterized in that: The tent cap is dome-shaped as a whole and is constructed by a bottom ring seat and two cross-shaped ribs, wherein the bottom of the ribs is integrally connected to the bottom ring seat; The top profile of the ribs is arc-shaped, and the two ribs divide the dome-shaped top surface into four parts. There is a hollow space between adjacent ribs, and the hollow space is connected to the cavity in the bottom ring seat to form a through portion; The ribs extend outward from the side wall of the connecting portion, and the maximum diameter of the bottom ring seat is not less than the diameter of the connecting portion; Grooves are provided along the center line of the top profile of the ribs, and the intersecting grooves form a cross-shaped groove for a screwdriver to be inserted into.

4. The biodegradable tent peg for dental implant bone augmentation according to claim 2, characterized in that: The tent cap includes a cylindrical shell with an assembly platform at the center. A central groove is provided on the assembly platform. A support plate extends from the outer wall of the central groove to the surrounding areas and is connected to the inner wall of the tent cap. The bottom plane of the tent cap is flush with the top end surface of the connecting part. Adjacent support plates are hollowed out to form observation windows.

5. The biodegradable tent peg for dental implant bone augmentation according to claim 1, characterized in that: The diameter of the connecting portion is 5-7 mm, and the diameter of the tent cap is 7-9 mm.

6. The biodegradable tent peg for dental implant bone augmentation according to claim 5, characterized in that: The column diameter of the connecting portion is 6 mm, and the maximum diameter of the tent cap is 8 mm.

7. The biodegradable tent peg for dental implant bone augmentation according to claim 1, characterized in that: The thread direction of the threaded portion is toward the tip side, the length of the threaded portion is 4-6 mm, and the thread pitch of the threaded portion is 0.8 mm.

8. The biodegradable tent peg for dental implant bone augmentation according to claim 1, characterized in that: The self-tapping tip is a conical tip with self-tapping properties, and can embed the tent peg into the alveolar bone base, and at least half the length of the threaded portion is embedded in the alveolar bone base.

9. The biodegradable tent peg for dental implant bone augmentation according to claim 1, characterized in that: The connecting portion is connected to the threaded portion as a whole and is cylindrical in shape. The surface of the rod of the connecting portion is smooth.

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