AU2024203324A1

AU2024203324A1 - Dental Implant

Info

Publication number: AU2024203324A1
Application number: AU2024203324A
Authority: AU
Inventors: Omid Allan
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-05-25
Filing date: 2024-05-20
Publication date: 2024-06-06
Also published as: AU2023202442A1; WO2023225702A1

Abstract

A dental implant featuring an intra-bony section and a gingival collar is disclosed. The gingival collar is designed to contact the surrounding soft tissue and is characterised by a non-threaded, smooth, frustoconical surface that increases in diameter towards the proximal end of the implant. A circular groove separates the non-threaded part from the gingival collar, providing a visible reference point to ensure proper insertion, thereby preventing damage to the hard cortical bone from over insertion. This groove also serves as a tissue barrier, reducing the risk of gingival recession. Additionally, the groove's conspicuous profile in radiographs facilitates long-term monitoring of bone loss, and it can retain antibiotic gels for treating peri-implantitis. This design enhances both the functional performance and the longevity of the dental implant. 7

Description

Dental Implant

Field of the Invention

[0001] The present invention relates generally to dental implants. More specifically, the present invention is a self-drilling and self-advancing ultra-narrow diameter dental implant which allows screw retained dental prosthesis to be fixed onto the present invention.

Background of the Invention

[0002] In recent years, the importance of dental health has been increasingly recognised, leading to a demand for advancements in dentistry. As individuals age or experience medical issues, tooth loss or severe decay can occur, necessitating the use of replacement prosthetics. Dental implants have emerged as a reliable solution for lost teeth. However, the proper placement of these standard dental implants is complex, and improper implantation can result in complications.

[0003] The present invention seeks to provide a dental implant, which will overcome or substantially ameliorate at least some of the deficiencies of the prior art, or to at least provide an alternative.

[0004] It is to be understood that, if any prior art information is referred to herein, such reference does not constitute an admission that the information forms part of the common general knowledge in the art, in Australia or any other country.

Summary of the Disclosure

[0005] The described dental implant embodiment features an intra-bony implant body designed for full insertion into the jawbone, with a distal threaded part and a proximal non-threaded part that is frustoconical and increases in diameter towards the proximal end. A gingival collar, also frustoconical and increasing in diameter towards the proximal end, contacts the soft tissue surrounding the implant. A groove separates the non-threaded part from the gingival collar, providing a visible reference point to ensure proper insertion of the implant, avoiding damage to the hard cortical bone from over insertion, and ensuring an adequate tissue barrier margin for reducing the risk of gingival recession. This groove may also facilitate long-term monitoring of bone loss, as its profile is conspicuous in radiographs. The groove can also retain antibiotic gels for treating future peri-implantitis.

[0006] The implant may include a distally located self-cutting section, a progressive

self-tapping section proximal to the self-cutting section, and a retentive part with

compressive threads following the self-tapping section. Additionally, the non

threaded part may be roughened. The implant also comprises a proximal abutment

which may feature a hexagonal nut containing an interior threaded channel,

surrounded by a frustoconical section and an annular flat surface. The abutment may

be oriented collinearly with the elongate axis defined by the intra-bony implant section

and the gingival collar, or it may be oriented at an obtuse angle between 135 and

1800relative to the elongate axis.

[0007] Other aspects of the invention are also disclosed.

Brief Description of the Drawings

[0008] Notwithstanding any other forms which may fall within the scope of the present

invention, preferred embodiments of the disclosure will now be described, by way of

example only, with reference to the accompanying drawings in which:

Fig. 1 shows a side view of a dental implant; and

Fig. 2 shows a top perspective view of the dental implant of Fig. 1.

Description of Embodiments

[0009] Figs. 1 and 2 show an embodiment of a dental implant comprising an intra

bony implant section 1, which is meant to be fully inserted in the jawbone, a gingival

collar 2, which is to be placed in contact with the soft tissue surrounding the implant,

and an abutment 3 designed to host the restoration. The implant is surgically inserted

for osseointegration into the jawbone of a patient in order to attach a crown or fixed

tooth prosthesis. The implant is preferred to be solid titanium to provide strong,

permanent support for the crown or tooth prosthetic within the patient's mouth.

[0010] The intra-bony implant section 1 may comprise a self-cutting section 9, which

may occupy a third of a distal section of the implant. The self-cutting section 9 has

threads. The intra-bony implant section 1 may also have a progressive self-tapping section 8, with progressive threads, and a retentive part 7, with compressive threads, in a proximal third of the intra-bony implant section 1. The implant may comprise a micro-threaded section 6 and a passive non-threaded part 5. The passive non threaded part 5 is devoid of threads, frustoconical, and increases in diameter towards a proximal end of the implant.

[0011] The intra-bony implant section 1 is separated from the gingival collar 2. The

gingival collar 2 is configured to contact soft tissue surrounding the implant in use.

The gingival collar 2 is non-threaded, defines a smooth surface, is frustoconical, and

increases in diameter towards the proximal end of the implant. A circular groove 4

separates the non-threaded part 5 and the gingival collar 2. This groove 4 provides a

visible reference point to ensure proper insertion of the implant, thereby avoiding

damage to the hard cortical bone from over insertion and ensuring a proper tissue

barrier margin that reduces the risk of gingival recession. The profile of the groove is

conspicuous in radiographs, facilitating long-term monitoring of bone loss.

Furthermore, the groove can retain antibiotic gels, offering a treatment option for

future peri-implantitis.

[0012] The abutment 3 comprises a hexagonal nut 10, which is flared on top and

surrounded by a frustoconical section 11, in turn surrounded by an annular flat

surface 12, which defines a restorable section of the implant. The abutment 3 includes

a threaded channel 13 for screw retention. The abutment 3 is the portion of the

implant that connects to the abutment of the prosthesis with a fixation screw. The

self-cutting section 9 is distally located opposite the proximally located abutment 3.

Threading of the intra-bony implant section 1 secures it within the jawbone, and the

seamlessly machined smooth surface of the gingival collar 2 is a frustoconical profile

which widens in diameter towards the proximal end of the implant.

[0013] The multi-unit section 3 protrudes from the gum of the patient for the crown or

tooth prosthesis to be attached. The abutment 3, adjacent to the gingival collar 2,

defines the narrow annular flat surface 12, followed by the short frustoconical section

11 and the hexagonal nut 10. A top border of the hexagonal nut 10 is flared and

defines an interior screw retention channel 13. The abutment 3 may be oriented collinearly with respect to an elongate axis defined by the intra-bony implant section

1 and the gingival collar 2, as shown in Figs. 1 and 2. However, the abutment 3 may

be oriented at an angle with respect to the elongate axis defined by the intra-bony

implant section 1, preferably defining an obtuse angle between 135 and 180.

[0014] The tapered self-cutting section 9 may comprise cutting and self-advancing

threading designed to bore a pilot hole into the jawbone to displace bone matter for

the implant section 1 to be surgically positioned within the jawbone. The progressive

self-tapping section 8 may have self-tapping threads which allow further advancement

of the implant into the cancellous bone. The progressive self-tapping section 8 may

be followed by the retentive part 7 with compressive threads designed for maximum

retention and stability of the implant in the jawbone. In accordance with some

embodiments, the retentive part 7 is followed by the micro-threaded section 6. The

non-threaded part 5 may have a roughened surface to facilitate osseointegration.

[0015]The foregoing description, for purposes of explanation, used specific

nomenclature to provide a thorough understanding of the invention. However, it will

be apparent to one skilled in the art that specific details are not required in order to

practise the invention. Thus, the foregoing descriptions of specific embodiments of

the invention are presented for purposes of illustration and description. They are not

intended to be exhaustive or to limit the invention to the precise forms disclosed as

obviously many modifications and variations are possible in view of the above

teachings. The embodiments were chosen and described in order to best explain the

principles of the invention and its practical applications, thereby enabling others

skilled in the art to best utilize the invention and various embodiments with various

modifications as are suited to the particular use contemplated. It is intended that the

following claims and their equivalents define the scope of the invention.

Claims

Claims 1. A dental implant defining:

an intra-bony implant body (1) configured to be fully inserted into a jaw bone in

use, the intra-bony implant body (1) defining a distal threaded part and a proximal

non-threaded part (5) wherein the non-threaded part (5) is frustoconical and

increasing in diameter towards a proximal end of the implant;

a gingival collar (2) configured to contact soft tissue surrounding the implant in

use, wherein the gingival collar (2) is non-threaded, defines a smooth surface and is

frustoconical and increasing in diameter towards the proximal end of the implant, and

wherein a groove (4) separates the non-threaded part (5) and the gingival collar (2).
2. The dental implant according to claim 1, wherein the intra-bony implant section

(1) includes a distally located self-cutting section (9).
3. The dental implant according to claim 2, further comprising a progressive self

tapping section (8) proximal to the self-cutting section (9).
4. The dental implant according to claim 2, wherein a retentive part (7) with

compressive threads follows the progressive self-tapping section (8).
5. The dental implant according to claim 1, wherein the non-threaded part (5) is

roughened.
6. The dental implant according to claim 1, wherein the implant comprises a

proximal abutment (3) comprising a hexagonal nut (10) defining a contains an interior

threaded channel (13), and wherein the hexagonal nut (10) is surrounded by a

frustoconical section (11) and an annular flat surface (12).
7. The dental implant according to claim 6, wherein the abutment (3) is oriented

collinearly with the elongate axis defined by the intra-bony implant section (1) and the

gingival collar (2).
8. The dental implant according to claim 6, wherein the abutment (3) is oriented

at an obtuse angle between 1350 and 1800 relative to the elongate axis defined by the

intra-bony implant section (1).