WO2018130419A1

WO2018130419A1 - Assembly comprising an implant element and a gingiva former

Info

Publication number: WO2018130419A1
Application number: PCT/EP2018/000005
Authority: WO
Inventors: Armin Nedjat
Original assignee: Champions-Implants Gmbh
Priority date: 2017-01-13
Filing date: 2018-01-03
Publication date: 2018-07-19
Also published as: DE102017007341A1

Abstract

The invention relates to an assembly comprising an implant element (1) and a gingiva former (2). The implant element (1) complements the gingiva former (2) such that the gingiva former (2) can be partly inserted into the implant element (1). The implant element (1) and the gingiva former (2) can be connected together in a form-fitting manner such that the implant element (1) rotates upon a rotation of the gingiva former (2). The aim of the invention is to provide an assembly with a non-metal implant element, the interior of which is sealed as well as possible and is mechanically stable to such a degree that the element withstands high torque loads. The invention is characterized in that the implant element (1) is made of a non-metal material, and the implant element (1) has a first and a second conically running implant element seal surface (3, 4), each of which can be placed against a first and a second conically running gingiva former seal surface (5, 6) of the gingiva former (2) such that the interior of the implant element (1) is sealed from the surrounding area. A grip section (7) of the gingiva former (2) is arranged axially between the first and the second gingiva former seal surface (5, 6), said grip section engaging into an implant element (1) receiving area section (8), which is arranged axially between the first and the second implant element seal surface (3, 4), in a form-fitting manner.

Description

Arrangement, comprising an implant body and a gingivaformer

description

The invention relates to an arrangement according to the preamble of

Patent claim 1.

From the prior art it is known to screw an implant body by means of a tool in the jawbone of a human to replace missing tooth roots. After insertion of the implant body in the jawbone of the implant body is usually closed by a cover screw to prevent the ingress of germs.

The arrangement of implant body and cover screw remains for a certain time without further processing in the jaw of the patient to allow ingrowth of the jawbone with the implant body.

Later, the cover screw is released from the implant body and instead a so-called gingivaformer placed on the implant body. The gingivaformer is to prepare the gums for receiving a denture. The gingivaformer is usually adapted in its shape to the later aufzusetzenden dentures and causes a corresponding

Forming of the gums.

In another treatment appointment, an impression is made. For this purpose, the gingivaformer is replaced by a so-called impression post. So in a dental laboratory the position of the later

Dentures are adjusted in the jaw and the dentures can be prepared for placement on the implant body.

In another appointment, the prefabricated in the laboratory dentures

placed. For this purpose, a so-called abutment is first placed on the screwed implant body and anchored in the implant body, namely preferably screwed. Finally, the artificial denture is placed on the abutment in a final step. Sometimes longer periods of time pass between the work steps described above. In particular, during the ingrowth of the implant body in the jaw passes a relatively long time. This time is required to prevent the implant body is loosened in its further processing in the jaw again.

In the method described above, it is disadvantageous that due to the frequent replacement and placement of parts on the implant body, its interior becomes accessible. There is a risk of germ introduction. Through a

Germination can trigger infections.

Against this background, EP 2 494 939 A2 has disclosed an arrangement which comprises an implant body and a healing abutment. In order to avoid the above-mentioned problems, the implant body is designed to be complementary to the gingivaformer in such a way that the gingivaformer can be inserted in sections into the implant body. In this case, the implant body and the healing abutment are positively connected with each other, so that upon rotation of the gingivaformer rotation of the implant body takes place.

The assembly may be inserted as a whole into the jaw, with the interior of the implant body being sealed against germination by the gingivaformer.

The items of the known arrangement are made of metals.

However, some patients show intolerance to the use of

Metals. Against this background, there is a need for implant bodies that grow together easily and quickly with the jawbone and affect the health of the patient as little as possible.

The invention is therefore based on the object to provide an arrangement with a non-metallic implant body, the interior of which is sealed as well as possible and which is mechanically stable so that it holds a high torque load level.

The present invention achieves the aforementioned object by the features of patent claim 1.

According to the invention, it has surprisingly been recognized that an implant body, which is made of a non-metallic material, together with a healing abutment as a whole can be screwed into a jawbone without the implant body breaking. It has also been recognized that such an implant body, which in itself is also a relatively rough and porous Surface may still have a sealing surface which can be applied sealingly to another sealing surface.

According to the invention, conically extending sealing surfaces are sealingly placed against one another, an axially upper sealing section being separated from an axially lower sealing section by a form-fitting section.

As a result, a double cone is created, which has two structurally separate sealing sections. By two sealing sections is the

Sealing security virtually doubled.

It has surprisingly been recognized that such an implant body is mechanically stable enough to withstand a high torque load of more than 30 Ncm. Such high torques occur when an implant body with a thread is screwed into a jawbone.

After completion of a step in the implantation, namely after insertion of the implant body into the jaw, a gingivaformer is already installed on the implant body, on which an impression post can be placed. After only a first step, it is therefore possible, the

To make impression for a denture.

It is particularly advantageous if the implant body is made of a ceramic or made of a sintered material which comprises 98-50% by volume of zirconium oxide as a matrix, or is made of polyetheretherketone or is made of polyetherketone ketone.

In particular, it has surprisingly been found that an implant body made of a sintered material, which 98-50 vol .-% of

Zirconium oxide as a matrix, together with a gingivaformer as a whole can be screwed into a jawbone without the implant body breaking. It has also been recognized that such Implant body, which has a relatively rough and porous surface per se, yet has a sealing surface which can be applied sealingly to another sealing surface. The plastics polyetheretherketone (PEEK) or polyetherketone ketone (PEKK) are also suitable because of their favorable

Material properties for the production of the implant body of in

aforementioned manner may have sealing surfaces which are sealingly applied.

It could be provided an impression post which is complementary to the gingivaformer, wherein the impression post in a

Receiving portion of the healing abutment can be used. The gingivaformer serves as a holding body for an impression post, which is required for an impression for the production of the denture in the laboratory. The impression post can be placed on the implant body without the gingivaformer before

To separate implant body. With such a separation, the interior of the implant body would be accessible again, so that germs could be registered.

Against this background, the gingivaformer could have an inner circumferential groove, which with an outer circumferential spring of the

Abdruckpfostens for positive connection between healing abutment and impression post corresponds, wherein the impression post has a gripping portion of the impression post, which has an outer contour shaping, which corresponds to the internal contour shaping of the receiving portion of the healing abutment. As a result, the impression post can be easily positively connected to the gingivaformer without removing the gingivaformer.

In addition or as an alternative to the gingivaformer, an abutment could be provided which can be inserted in sections in the implant body, wherein the implant body and the abutment can be positively connected to one another, wherein the implant body has a first and a second conically extending implant body sealing surface, which in each case to a first and a second conically extending Abutmentdichtfläche the abutment can be applied, that the interior of the implant body is sealed against the environment, wherein axially between the first and the second Abutmentdichtfläche a gripping portion of the abutment is arranged, which engages positively in the receiving portion of the implant body. By such an arrangement, a dentist can be provided with a set which includes a

Implant body, a gingiva former and an abutment comprises. The dentist can then connect either the implant body and the healing abutment firmly together, for example, screw together, or the

Firmly connect implant body with an abutment, namely in particular screw.

The receiving portion of the implant body and / or the healing abutment could be formed as a hexagonal inner contour, in which a trained as a hexagonal gripping portion of the gingivaformer, an abutment, an impression post and / or a tool is positively inserted. A hexagon is easy to manufacture.

It could be provided a tool for screwing the implant body into a jaw, which is complementary to the gingivaformer and form-fit with this. This allows a dentist to rotate the implant body by engaging in a healing abutment without interfering with it with a tool. It could be provided a tool for screwing the implant body into a jaw, which is complementary to the gingivaformer and positively connected thereto, wherein the tool forms a lid of a receptacle in which the implant body and the gingivaformer, preferably hermetically sealed, are added.

This allows the implant body and the associated with him

Gingiva formers are delivered germ-free and must not be touched by the dentist when they are removed from the receptacle. Simply by grasping the cover, the composite of implant body and Gingiva formers are removed from the receptacle and screwed into a jaw.

Against this background, a method for placing dentures in the human jaw or in an artificial jaw as an educational object for training includes the following steps:

Use of an arrangement of the type described here, wherein the implant body is connected to the gingivaformer,

- Screwing the entire arrangement into a jaw with a

Tool, so that the implant body is anchored in the jawbone and the gingivaformer is surrounded by gums.

- Inserting an impression post after a certain period of time, and / or

Removing the healing abutment after a certain time or one

Healing time and insertion of an abutment into the implant body to attach to this denture.

By using an arrangement of implant body to be used with already attached gingivaformer is a later insertion of the

Gingiva former only after a healing phase of the implant body no longer required. The gingivaformer is inserted directly with the implant body and the gums are wrapped around the gingivaformer without this having to be done in a second step. In this way, a significant time savings compared to known methods is achieved.

It is now possible by force into the gingiva former the

Screwing the implant body into the jaw perform. At the end of the procedure, all that is required now is the

After the healing process, loosen the gingivaformer from the implant body by loosening an internal fixing screw and replace it with an abutment, which acts as the basis for permanent dentures. The abutment can be fixed with the same fixing screw, which has previously fixed the gingivaformer in the implant body.

The gingiva former or abutment could be screwed to the implant body. The gingivaformer is bolted to the implant body to be screwed into the jaw as an assembled assembly.

The implant body formed essentially as a hollow body is replaced by the gingivaformer used and by the implant body

Fixing screw stabilized and secured against possible deformation when screwed into the jawbone. This is particularly advantageous in small-sized implant bodies of small diameter, since they can be damaged by the stresses during screwing. Implant body is preferably made of a material as described in the publications EP 2 086 908 B1 and EP 2 089 909 B1. A material of this type is particularly resistant to breakage and holds high torques greater than 30 Ncm stand. In the drawing, an arrangement comprising an implant body and a

Gingiva formers, which can be connected to one another by a fastening screw, wherein an impression post is still shown, which is connectable to the gingivaformer,

Fig. 2 shows the arrangement of FIG. 1 in the assembled state

Fig. 3 is a sectional view of the implant body of the arrangement according to

1 and 2, Fig. 4 is a partially sectioned view of the gingiva former of

Arrangement according to FIGS. 1 and 2,

5 shows the impression post according to FIGS. 1 and 2, FIG. 6 shows an arrangement comprising an implant body and an abutment screwed thereto;

FIG. 7 shows the abutment according to FIG. 6, and FIG. 8 shows a receptacle which has a lid which acts as a

Tool is used to screw the implant body with fixed gingivaformer in a jaw.

1 shows an arrangement comprising an implant body 1 and a gingivaformer 2, wherein the implant body 1 is so complementary to the

Gingiva former 2 is formed, that the gingivaformer 2 in the

Implant body 1 is used in sections, wherein the implant body 1 and the gingiva former 2 are positively connected to each other, so that upon rotation of the healing abutment 2, a rotation of the implant body 1 takes place.

The implant body 1 is made of a sintered material comprising 98-50 vol% of zirconia as a matrix. Specifically, the implant body 1 is made of a material as described in the publications EP 2 086 908 B1 and EP 2 089 909 B1.

FIGS. 3 and 4 show that the implant body 1 has a first conically extending implant body sealing surface 3 and a second conical surface

Implant body sealing surface 4, which in each case can be applied to a first conically shaped gingivaform sealing surface 5 and a second conically shaped healing abdomen sealing surface 6 of the healing abutment 2, in that the interior of the implant body 1 is sealed off from the surroundings, a gripping section 7 of the gingivaformer 2 being arranged axially between the first and the second gingivaform sealing surfaces 5, 6, which is arranged in one

Receiving portion 8 of the implant body 1 positively engages, which is arranged axially between the first and the second implant body sealing surface 3, 4.

4 and 5 show that an impression post 9 is provided, which is designed to be complementary to the healing abutment 2, wherein the impression post 9 can be inserted into a receiving section 10 of the healing abutment 2.

4 and 5 show that the gingivaformer 2 has an inner circumferential groove 11, which is provided with an outer circumferential spring 2 of the

Abdruckpfostens 9 for the positive connection between healing abutment 2 and impression posts 9 corresponds, wherein the impression post 9 has a gripping portion 13 of the impression post 9, the one

Having outer contour shaping, which corresponds to the inner contour shaping of the receiving portion 10 of the gingiva former 2. 6 and 7 show that in addition to or as an alternative to the gingivaformer 2, an abutment 14 is provided which can be inserted in sections into the implant body 1, wherein the implant body 1 and the abutment 14 can be connected to one another in a form-fitting manner, wherein the implant body 1 has a first and a first second conically extending implant body sealing surface 3, 4, which in each case can be applied to a first conically Abutmentdichtfläche 15 and a second conically Abutmentdichtfläche 16 of the abutment 14 that the interior of the implant body 1 is sealed against the environment, wherein axially between the first and The second

Abutment sealing surface 15, 16 a gripping portion 17 of the abutment 14 is arranged, which engages positively in the receiving portion 8 of the implant body 1. The receiving portion 8 of the implant body 1 and the receiving portion 10 of the gingivaformer 2 are formed as hexagonal inner contours, in which a trained as a hexagon gripping portion 7 of a gingivaformer 2, a gripping portion 17 of an abutment 14, a gripping portion 13 of a

Abdruckpfostens 9 and / or a gripping portion of a tool 18th

is positively inserted.

8 shows that a tool 18 for screwing in the implant body 1 into a jaw is provided, which is designed to be complementary to the gingivaformer 2 and can be positively connected to it. Specifically, it is shown that the tool 18 is provided for screwing the implant body 1 into a jaw, which is complementary to the gingivaformer 2 and positively connected thereto, wherein the tool 18 forms a lid of a receptacle 19 in which the implant body 1 and the Gingiva former 2 are included.

The implant body 1 has an external thread 20 at its apical end, and then an external micro-thread 21 in the direction of the distal end.

The implant body 1 can be connected with a fastening screw 22 with the components described here.

LIST OF REFERENCE NUMBERS

1 implant body

2 gingivaformers

3 first implant body sealing surface

4 second implant body sealing surface

5 first gingivaform sealing surface

6 second gingivaform sealing surface

7 gripping portion of the healing abutment 8 receiving portion of the implant body

9 impression posts

10 receiving section of the gingiva former

11 groove

12 spring

13 gripping portion of the impression post

14 abutment

15 first abutment sealing surface

16 second abutment sealing surface

17 gripping portion of the abutment

18 tool

19 receptacle

20 external thread

21 micro threads

22 fixing screw

Claims

1. Arrangement, comprising an implant body (1) and a

Gingiva former (2), wherein the implant body (1) is formed so complementary to the healing abutment (2), that the healing abutment (2) in sections in the implant body (1) is used, wherein the

Implant body (1) and the gingivaformer (2) are positively connected to each other, so that upon rotation of the healing abutment (2) a

Rotation of the implant body (1) takes place,

characterized in that

the implant body (1) is made of a non-metallic material, wherein the implant body (1) has a first and a second conically extending implant body sealing surface (3, 4) which in each case in such a way to a first and a second conically extending

Gingivaformerdichtfläche (5, 6) of the healing abutment (2) can be applied, that the interior of the implant body (1) is sealed against the environment, wherein axially between the first and the second

Gingivaformerdichtfläche (5, 6) a gripping portion (7) of the gingivaformer

(2) is arranged in a receiving portion (8) of the

Implant body (1) engages positively, which is arranged axially between the first and the second implant body sealing surface (3, 4). 2. Arrangement according to claim 1, characterized in that the

Implant body (1) is made of a ceramic or made of a sintered material which comprises 98-50 vol .-% of zirconium oxide as a matrix, or is made of polyetheretherketone or is made of polyetherketone ketone.

3. Arrangement according to claim 1 or 2, characterized in that an impression post (9) is provided, which complementary to the Gingiva former (2) is formed, wherein the impression post (9) in a receiving portion (10) of the healing abutment (2) can be inserted.

4. Arrangement according to claim 3, characterized in that the

Gingivaformer (2) has an inner circumferential groove (11) with an outer circumferential circumferential spring (12) of the impression post (9) for the positive connection between healing abutment (2) and

Abdruckpfosten (9) corresponds, wherein the impression post (9) has a gripping portion (13) of the impression post (9), the one

Having outer contour shaping, which corresponds to the internal contour shaping of the receiving portion (10) of the healing abutment (2).

5. Arrangement according to one of the preceding claims, characterized

in that, in addition or as an alternative to the gingivaformer (2), an abutment (14) is provided which can be inserted in sections in the implant body (1), wherein the implant body (1) and the abutment (14) can be positively connected to one another, wherein the implant body (1) has a first and a second conically extending implant body sealing surface (3, 4) which in each case can be applied to a first and a second conically extending Abutmentdichtfläche (15, 16) of the abutment (14) that the interior of the implant body (1 ) is sealed against the environment, wherein axially between the first and the second Abutmentdichtfläche (15, 16), a gripping portion (17) of the abutment (14) is arranged, which engages positively in the receiving portion (8) of the implant body (1).

6. Arrangement according to one of the preceding claims, characterized

in that the receiving section (8, 10) of the

Implant body (1) and / or the gingivaformer (2) is designed as a hexagonal inner contour or are in the one as a hexagon

trained gripping portion (7, 17, 13) of the healing abutment (2), a Abutments (14), an impression post (9) and / or a tool (18) is positively inserted.

7. Arrangement according to one of the preceding claims, characterized

characterized in that a tool (18) for screwing in the

Implant body (1) is provided in a jaw, which

formed complementary to the gingivaformer (2) and can be positively connected with this.

8. Arrangement according to one of the preceding claims, characterized

characterized in that a tool (18) for screwing in the

Implant body (1) is provided in a jaw, which

is formed complementary to the gingivaformer (2) and is positively connected thereto, wherein the tool (18) forms a lid of a receptacle (19), in which the implant body (1) and the gingivaformer (2) are accommodated.

9. A method for placing dentures in the human jaw or in an artificial jaw as an educational object for training, comprising the following steps:

- Using an arrangement according to the preceding

Claims, wherein the implant body (1) is connected to the gingivaformer (2),

- Screwing the entire arrangement into a jaw with a

Tool (18), so that the implant body (1) is anchored in the jawbone and the gingivaformer (2) is surrounded by gums,

- Inserting an impression post (9) after a certain

Time span, and / or

- Removal of the healing abutment (2) after a certain time or a healing time and insertion of an abutment (14) in the

Implant body (1) to attach to this dentures.