IL296381A

IL296381A - A dental implant assembly

Info

Publication number: IL296381A
Application number: IL296381A
Authority: IL
Inventors: Doron Bar Chen Dr; Omer Koton Dr
Original assignee: Doron Bar Chen Dr; Omer Koton Dr
Priority date: 2022-09-11
Filing date: 2022-09-11
Publication date: 2024-04-01
Also published as: WO2024052894A3; WO2024052894A2

Description

21070 A DENTAL IMPLANT ASSEMBLY A DENTAL IMPLANT ASSEMBLY A DENTAL IMPLANT ASSEMBLY A DENTAL IMPLANT ASSEMBLY TECHNICAL FIELD TECHNICAL FIELD TECHNICAL FIELD TECHNICAL FIELD The present invention relates to the field of dental implants.

BACKGROUND ART BACKGROUND ART BACKGROUND ART BACKGROUND ART Fig. 1 Fig. 1 Fig. 1 Fig. 1 is an exploded view of a dental implant 100, according to the prior art.

An implant assembly, which is marked by reference numeral 100, comprises an implant body 10 which has an external threading, an abutment 11, and a crown 12 which resembles the tooth it replaces. The abutment 11 is connected to the implant body 10, for example by a threaded rod, and other. Reference numeral 15 denotes a bone such as a mandible bone and a maxilla bone. And reference numeral denotes a space in bone 15 into which the implant body 10 is fixed.

Usually, the body of an implant is made of titanium, which does not create an immune reaction by the body. In the manufacturing process of an implant, the implant surface is processed by burning with acid and spraying with particles (roughening), in order to improve, optimize and accelerate its absorption in the bone. This process is called oseointegration. 21070 The oral cavity and the implant environment are constantly contaminated with bacteria and bacterial byproducts. As long as the entire body of the implant remains surrounded by bone, no inflammatory process happens. But, once an inflammatory process or conventional gum disease begins in the surrounding of the implant, the implant body, which as mentioned has undergone a roughening process, becomes a "habitat" for bacteria and their products (endotoxins). As a result, the gum disease around the implant is increased, and accelerates the absorption of the supporting bone.

In other words, the advantage of a rough surface of an implant upon being inserted into a bone becomes a disadvantage when the implant begins to be exposed to oral cavity. This whole process and the gum disease that develops around the implant - is called Peri-implantitis.

It is almost impossible to "disinfect" an implant surface exposed to the mouth. Furthermore, after attempting to preserve an old implant with various treatments, the implant has to be removed and replaced by a new implant.

The term "Peri-implantitis is defined in Wikipedia as follows: "Peri-implantitis is a destructive inflammatory process affecting the soft and hard tissues surrounding dental implants. The soft tissues become inflamed whereas the alveolar bone (hard tissue), which surrounds the implant for 21070 the purposes of retention, is lost over time. (From Wikipedia, Peri-implantitis) Each of Fig Fig Fig Figs s s s. 2 . 2 . 2 . 2a and 2b a and 2b a and 2b a and 2b is a longitudinal cross-section of a bone 15 (e.g., a mandible bone) in which is implanted an implant assembly 100, according to the prior art.

The implant assembly 100 comprises an implant body , an abutment 11 fixed in the implant body 10, and a crown 12 in which the abutment 11 is fixed. The implant body has an external threading.

In Fig. 2a, the implant body 10 is implanted in a "healthy" tissue, i.e., not infected by Peri-implantitis. In Fig. 2b there is a Peri-implantitis inflammatory tissue 13, which develops around the implant 10, near to the crown 12. As the time goes by, the inflammatory zone expands.

The threading of the implant body 10 is habitat for bacteria, and therefore after several years the tissue that surrounds the implant becomes inflammatory, i.e., infected by Peri-implantitis. As a result, the grabbing of the implant assembly by the bone weakens.

Cleaning the infected part of the implant from the bacteria is almost impossible. Therefore sometimes the dental implant assembly has to be replaced by a new dental implant, which is a complicated and costly process. 21070 All the methods described above have not yet provided satisfactory solutions to the above-mentioned problems of the prior art.

It is an object of the present invention to provide a solution to the above-mentioned and other problems of the prior art.

Other objects and advantages of the invention will become apparent as the description proceeds.

SUMMARY OF THE INVENTION SUMMARY OF THE INVENTION SUMMARY OF THE INVENTION SUMMARY OF THE INVENTION In one aspect, the present invention is directed to a dental implant assembly, comprising: an implant having an external threading (14), wherein the implant is composed of at least two detachable parts (10a, 10b) connected to each other; an abutment (11) fixed to at least one of the at least two parts (10a, 10b); and a crown (12) fixed to the abutment.

According to one embodiment of the invention, in each two adjacent parts (10a, 10b) of the implant, one comprises a pyramided form male member (16), and other comprises a pyramided form female member (17), respectively to each other. 21070 According to one embodiment of the invention, the implant parts are connected to each other by a threaded rod (19).

According to one embodiment of the invention, the implant parts and the abutment (11) are connected to each other by a threaded rod (19).

According to one embodiment of the invention, the implant parts, the abutment (11), and the crown (12) are connected to each other by a threaded rod (19).

According to one embodiment of the invention, the threaded rod (19) comprises an inner nut form (20), for threading thereof.

According to one embodiment of the invention, the threaded rod (19) comprises external nut form (known in the art as nut head, for example in Wikipedia, Bolt fastener), for threading thereof.

According to one embodiment of the invention, the implant parts are connected to each other.

According to one embodiment of the invention, the implant parts are connected to each other by a snap connection. (See Google images search of "snap connector"). 21070 Preferably, the connection between the abutment (11) and the replaceable part (10a) of the implant is in a form of a polygonal prism. More particularly, the male part of the connection is in a prismatic polygonal form and the female part of the connection corresponds to this form.

The reference numbers have been used to point out elements in the embodiments described and illustrated herein, in order to facilitate the understanding of the invention. They are meant to be merely illustrative, and not limiting. Also, the foregoing embodiments of the invention have been described and illustrated in conjunction with systems and methods thereof, which are meant to be merely illustrative, and not limiting.

BRIEF DESCRIPTION OF DRAWINGS BRIEF DESCRIPTION OF DRAWINGS BRIEF DESCRIPTION OF DRAWINGS BRIEF DESCRIPTION OF DRAWINGS Fig. 1 Fig. 1 Fig. 1 Fig. 1 is an exploded view of a dental implant, according to the prior art.

Each of Figs. 2a and 2b Figs. 2a and 2b Figs. 2a and 2b Figs. 2a and 2b is a longitudinal cross-section of a bone 15 (e.g., a mandible bone) in which is implanted an implant assembly 100, according to the prior art.

Fig. 3a Fig. 3a Fig. 3a Fig. 3a is a side-exploded view of a dental implant assembly 101, according to one embodiment of the invention. 21070 Fig. 3b Fig. 3b Fig. 3b Fig. 3b is a central longitudinal cross-section thereof at the symmetry line.

Fig. 4a Fig. 4a Fig. 4a Fig. 4a is a perspective exploded view of a dental implant assembly 101, according to one embodiment of the invention.

Fig. 4b Fig. 4b Fig. 4b Fig. 4b is a central longitudinal cross-section thereof at the symmetry line.

Fig. 5a Fig. 5a Fig. 5a Fig. 5a is a side view of an implanted dental implant assembly 101, according to one embodiment of the invention.

Fig. 5b Fig. 5b Fig. 5b Fig. 5b is a central longitudinal cross-section thereof at the symmetry line.

Fig. 6a Fig. 6a Fig. 6a Fig. 6a is a perspective view of an implanted dental implant assembly 101, according to one embodiment of the invention.

Fig. 6b Fig. 6b Fig. 6b Fig. 6b is a central longitudinal cross-section thereof at the symmetry line.

Fig. 7 Fig. 7 Fig. 7 Fig. 7 is a longitudinal cross-section of a bone in which is fixed a dental implant assembly 101, according to one embodiment of the invention. 21070 Preferred embodiments, features, aspects and advantages of the present invention are described herein in conjunction with the following drawings: It should be understood that the drawings are not necessarily drawn to scale.

DESCRIPTION OF EMBODIMENTS DESCRIPTION OF EMBODIMENTS DESCRIPTION OF EMBODIMENTS DESCRIPTION OF EMBODIMENTS The present invention will be understood from the following detailed description of preferred embodiments ("best mode"), which are meant to be descriptive and not limiting.

For the sake of brevity, some well-known features, methods, systems, procedures, components, circuits, and so on, are not described in detail.

Fig. 3 Fig. 3 Fig. 3 Fig. 3a a a a is a side-exploded view of a dental implant assembly 101, according to one embodiment of the invention.

Fig. 3b Fig. 3b Fig. 3b Fig. 3b is a central longitudinal cross-section thereof at the symmetry line.

Fig. 4a Fig. 4a Fig. 4a Fig. 4a is a perspective exploded view of a dental implant assembly 101, according to one embodiment of the invention. Fig. 4b Fig. 4b Fig. 4b Fig. 4b is a central longitudinal cross-section thereof at the symmetry line.

The crown is not shown in these figures (3a, 3b, 4a, 4b). 21070 According to this embodiment of the invention, the dental implant is composed of two parts 10a and 10b, to be fastened to each other by, for example, by a threaded rod 19, snap connection, etc. Part 10a is the closer to the crown 12, and part 10b is the farther to the crown 12 (as shown inter alia in Fig. 7).

Since the Peri-implantitis begins to develop around the closer part of the implant to the crown, i.e., 10a, if replacement of the implant is required, instead of replacing the entire implant, only this part can be replaced. Replacing this part (i.e., 10a) does not require a complicated and costly process as replacing the entire implant.

The connection between the two parts of the implant is pyramidal, meaning that one part of the implant has a male pyramid shape 16, and the part connected to it has a female pyramid shape 17. This structure provides two advantages: threading the two parts of the implant together as if they were one part, and quick release of the part of the implant for replacement.

The threaded rod 19 can connect both parts 10a and 10b of the implant, the abutment 11, and even the crown.

When implanting the implant, a bore is drilled into the bone. The diameter of the bone is slightly smaller than the diameter of the implant. Over time the bone covers the 21070 threading of the implant, so after a few months the implant is fixed into the bone.

It should be noted that the connection between the abutment 11 and the replaceable part 10a of the dental implant is in a form of a polygonal prism. This allows placing the abutment 11 in the same orientation with reference to the dental implant as in the original form, and also retainms this orientation later on.

Fig. 6a Fig. 6a Fig. 6a Fig. 6a is a perspective view of an implanted dental implant assembly 101, according to one embodiment of the invention. Fig. 6b Fig. 6b Fig. 6b Fig. 6b is a central longitudinal cross-section thereof at the symmetry line.

As shown, parts 10a and 10b of the implant are composed together. From functional point of view, the two- parts implant of the present invention operate as a prior art implant, except that part 10a can be removed, thereby sparing the need of replacing the entire implant.

It should be noted that according to embodiments of the present invention, an implant can be composed by more than two parts. 21070 The crown is not shown in these figures.

Fig. 7 Fig. 7 Fig. 7 Fig. 7 is a longitudinal cross-section of a bone in which is fixed a dental implant assembly 101, according to one embodiment of the invention.

The dental implant assembly 101 comprises a dental implant composed of two detachable parts 10a and 10b.

Reference numeral 15 denotes a bone, such as the maxilla and the mandible bone. In the bone is implanted the implant which comprises two parts 10a and 10b.

An abutment 11 is attached to part 10a of the implant.

In this example, a threaded rod 19 attaches to each other parts 10a and 10b of the dental implant, and the abutment 11 to which a crown 12 is attached.

According to one embodiment of the invention (not illustrated), the threaded rod 19 connects not only the parts 10a and 10b of the implant and the abutment 11, but also the crown 12.

As mentioned, this technology saves the need to remove the entire existing implant and perform the implantation process from the beginning, thus eliminating the potential surgical complications, extra time, and extra costs. 21070 In the examples herein the implants according to the present invention comprise only two parts, 10a and 10b.

However, it should be noted that an implant according to the present invention may comprise more than two parts.

In the figures and/or description herein, the following reference numerals (Reference Signs List) have been mentioned: - numeral 100 denotes a dental implant assembly, according to the prior art; - numeral 101 denotes a dental implant assembly, according to one embodiment of the invention; - numeral 10 denotes a body of a dental implant; - each of numerals 10a and 10b denotes a part of a dental implant; - numeral 11 denotes an abutment; - numeral 12 denotes a crown; - numeral 13 denotes a Peri-implantitis inflammatory tissue; - numeral 14 denotes an external threading of a dental implant; - numeral 15 denotes a bone in which a dental implant is implanted; - numeral 16 denotes a pyramided male part of a connector; - numeral 17 denotes a pyramided female part of a connector; - numeral 18 denotes a space in bone 15 into which an implant body is fixed - numeral 19 denotes a threaded rod which passes connect parts of the dental implant assembly to each other; 21070 - numeral 20 denotes a nut form of at one edge of the threaded rod 19, for threading the bolt; - numeral 21 denotes a seam line between two adjacent parts of a dental implant; - numeral 22 denotes a male polygonal prism part of a connector; and - numeral 23 denotes a female polygonal prism part of a connector.

The foregoing description and illustrations of the embodiments of the invention has been presented for the purposes of illustration. It is not intended to be exhaustive or to limit the invention to the above description in any form.

Any term that has been defined above and used in the claims, should to be interpreted according to this definition.

The reference numbers in the claims are not a part of the claims, but rather used for facilitating the reading thereof.

These reference numbers should not be interpreted as limiting the claims in any form.

Claims

21070 - 14 - CLAIMS CLAIMS CLAIMS CLAIMS

1. A dental implant assembly, comprising: an implant having an external threading (14), wherein said implant is composed of at least two detachable parts (10a, 10b) connected to each other; an abutment (11) fixed to at least one of said at least two parts (10a, 10b); and a crown (12) fixed to said abutment.

2. The dental implant according to claim 1, wherein in each two adjacent parts (10a, 10b) thereof one comprises a pyramided form male member (16), and other comprises a pyramided form female member (17), respectively to each other.

3. The dental implant according to claim 1, wherein said at least two parts (10a, 10b) are connected to each other by a threaded rod (19).

4. The dental implant according to claim 1, wherein said at least two parts (10a, 10b) and said abutment (11) are connected to each other by a threaded rod (19).

5. The dental implant according to claim 1, wherein said at least two parts (10a, 10b), said abutment (11), and said crown (12) are connected to each other by a threaded rod (19). 21070 - 15 -

6. The dental implant according to claim 3, wherein said threaded rod (19) comprises an inner nut form (20), for threading thereof.

7. The dental implant according to claim 3, wherein said threaded rod (19) comprises external nut form, for threading thereof.

8. The dental implant according to claim 1, wherein said at least two parts (10a, 10b) are connected to each other.

9. The dental implant according to claim 1, wherein said at least two parts (10a, 10b) are connected to each other by a snap connection.

10. The dental implant according to claim 1, wherein a connection between said abutment (11) and a replaceable part (10a) of said implant is in a form of a polygonal prism.