WO2016142066A1 - Modelling system for implant-supported tooth replacement element and use thereof - Google Patents

Modelling system for implant-supported tooth replacement element and use thereof Download PDF

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Publication number
WO2016142066A1
WO2016142066A1 PCT/EP2016/000427 EP2016000427W WO2016142066A1 WO 2016142066 A1 WO2016142066 A1 WO 2016142066A1 EP 2016000427 W EP2016000427 W EP 2016000427W WO 2016142066 A1 WO2016142066 A1 WO 2016142066A1
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WO
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Application
Patent type
Prior art keywords
element
thread
pillar
member
portion
Prior art date
Application number
PCT/EP2016/000427
Other languages
German (de)
French (fr)
Inventor
Philippe Kern
Isabell WIESTLER
Andreas Van Ophuysen
Original Assignee
Straumann Holding Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C8/00Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
    • A61C8/0048Connecting the upper structure to the implant, e.g. bridging bars
    • A61C8/005Connecting devices for joining an upper structure with an implant member, e.g. spacers
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C8/00Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
    • A61C8/0001Impression means for implants, e.g. impression coping

Abstract

A system for modelling an implant-supported tooth replacement element, characterized in that it contains as components an abutment element (1) and a cap element (6) that can be burnt out, wherein the abutment element (1), on the side facing the implant, has an implant interface (2), above this in the axial direction a transition area with a collar element (4) extending about the entire circumference of the abutment element (1), and above this collar element (4) an upwardly narrowing cone-like portion (3) which is provided at least partially on the outside with a thread (5), and the cap element (6) has a circular cylindrical portion (10) and, axially adjoining the latter, a portion (7) matching the cone-like portion (3) of the abutment element (1), said portion (7) having an inwardly directed inner thread (8) which can be brought into engagement with the thread (5) of the abutment element (1), such that this inwardly directed thread (8) permits an orientation parallel to the conical outer face of the upper portion (3) of the abutment element (1), and use of the system and method for said modelling. (cf. Fig. 1a, Fig. 2a).

Description

Modeling System for implant-based tooth replacement element and its use

The invention relates to a system for modeling an implant dentistry element (dental prosthesis) and its use.

multifunctional adapter are known (hereinafter referred to as a cap element) for a pillar element for the preparation of implant supported dental prosthesis (dentures), which consist of a scannable material and burn-out are (EP 2351536 Al). These already allow the production excellent dentures, but there is still a need to optimize the connection between the cap member and the pillar element to allow more flexibility in fine-tuning and / or easier handling in denture modeling.

The invention relates in this context an aforementioned system for modeling of an implant supported dental prosthesis member (dental prosthesis), characterized in that it contains as components an abutment element (abutment) and a Castable cap member (coping), as well as the individual components as separate objects of the invention. The pillar element has on the side facing the implant side (base) to an implant interface in the axial direction over a transition region with a (in a plane perpendicular to the axis of the pillar element) continuous around the entire circumference of the pillar member collar member and above (in the upper part) has a upwardly tapering cone-like

CONFIRMATION COPY portion which is provided on the outside at least partially with an (outwardly directed) thread. The cap element has a circular cylindrical section and axially therefrom, a complementary to the cone-like portion of the pillar element portion having an inwardly directed internal thread which is engageable with the thread of the abutment member into engagement on to so that the inwardly directed threading aligning and allows parallel to the conical outer surface of the upper portion of the pillar member, the inwardly threaded portion has preferably 2 or more, particularly 2 to 7, for example, 2 to 4 threads and preferably raised inward relative to the surrounding surface (increased inwardly from said surface ) is configured.

In an implant dentistry element can be a single tooth like a crown or their precursors or a multi-tooth restorations, like a bridge or their precursors. For example, Preferred within the scope of the invention More tooth restorations are on at least two implants.

As an implant interface of the pillar element may be a conventional interface for connection with Zahnimplanaten; of implant and abutment element used. This may be, for example, a taper in the implant cone or a polygon that is complementary to a polygon of the implant, wherein the inside or the outside of the base of the pillar element is configured as a polygon, at least in one section. It may be at the implant interface and a combination of several geometries such as cone and polygon. Examples of implant interface are described in EP 2,119,414th A preferred implant interface, especially in a multi-tooth replacement, has a tapering in the implant cone.

Preferably, both the abutment member and the cap member on the mutually engageable threaded sides are formed rotationally symmetrical or in particular they are completely rotationally symmetrically shaped and allows a very easy to produce and handle. The invention also relates to the use of the inventive system and a method for modeling a tooth replacement element, which is characterized in that it applied to an inventive pillar member with an inventive cap member such that the sections threaded together in the first place by rotating in engagement can come. Characterized a complete support of the cap member is achieved in the pillar member. Then, on the outside of the cap member by customary methods and procedures (for example, waxes and blocking) is modeled, the dental prosthetic member. the Kappenelelement is preferably rotated at least at the end of the placing operation, so as to prevent rotation or vertical movement. This results in a seamless edition. the abutment member is inserted into an implant analog in a, for example by impression of the patient's teeth, resulting model modeling: usually becomes.

To further edit and to control it may be necessary, the product thus obtained (splinted cap elements and / or wax) to remove and put back on the pier or the element. The or cap according to the invention and pillar elements have here on the induced by the one or more thread locking mechanism (clipping in or snap-fitting) of a clear and precise re-plugged and repositioning of the cap member relative to the pillar member (and vice versa) enables. When this process element is applied: is known in the art.

After Aufmodellieren the resulting structure by embedding in an appropriate mass may then (for example, sand with binder) and filling with metal to burnout or the burn-out cap members are converted into the corresponding metal part, which is then (preferably after milling of the originating from the original cap element thread portion ) is fixed to the pillar member, for example, using a conventional cement, wherein the pillar element or, for example in a bridge pillar elements is connected to a respective implant or be, for example, by screwing by a screw. (In the case of modeling dentures elements for bridges, in particular) to obtain a degree of flexibility to position correction, the threaded portion of the cap member relative to the overlying and underlying inside of the cap member is advantageously configured to internally raised (projecting), so that the cap member, which is preferably has a certain deformability, even after the connection to the pivot element a little can be moved relative thereto such that its upper end with respect to the longitudinal axis of the pillar member is pivotable to some extent, that is, the cap member and abutment member engage only the threaded portion firmly engaged with each other , The respective methods are known to those skilled in principle. Advantageously, a locking (clipping in or snap-fitting) may, especially in dental prostheses elements in the form of bridges, where the fixing is carried out at at least two locations of the pillar element / pillar elements with the cap member / the cap members can be achieved in the screw portion, which a given: restrict or impossibility of twisting compensated by snapping.

Preferably, the lower edge region of the cap member is formed such that it comes to lie in positioning of the cap on the pillar element in such a way that it is close to or, preferably, come into contact with the upper portion of the collar member of the pillar member, but without this collar element completely encase or include.

In the case of bridges over several implants of time, the cap members by bridging sections, for example of wax, connected to each other when modeling. The foregoing and subsequent definitions make it possible to individually general terms, to replace several, or all in embodiments of the invention and thereby define preferred embodiments of the invention. The number of threads is the number of. · (In the form of a spiral arranged) revolutions of the thread an._ Two threads means such as that of the thread ausformende spiralfömige protruding portion and / or the recessed portion that form the thread, twice around or in the respective element (s) about its respective axis spaced herumverläuft.

Which the or thread shaped out projecting and / barren retracted sections may be continuously switched on (without interruption in the course to the, or in the respective element) in a manner or be interrupted several times, which as such remains the thread function is not impaired (ie Aufdrehbarkeit ensured ), for example, they can be present individually or both interrupted after each half, third, fourth, fifth or sixth rotation about the axis of the respective Cob or cap member. The thread on the pillar element usually has a thread depth greater than 8 micrometers, preferably between 8 and 50 microns, most preferably between 8 and 20 microns and most preferably between 8 and 15 micrometers. The thread in the cap member is for this purpose preferably complementary. It is also a multi-start thread, a single start is preferred. , ...

The thread covers the conical upper part of the pillar member at least in the area where the "cap member having inwardly directed threads, but preferably at least 50% of the upper part, preferably at least 80% of the upper part and most preferably the entire upper part .:

The thread in the interior of the cap member usually has a distance of 10 to 200 micrometers from the inner wall of the cone and preferably 80 to 120 micrometers.

The burn-out cap member preferably consists of a when heated during the metal casting is complete and residue-free decomposing material, such as

Polymethyl methacrylate (PMMA) as Polycon ™ (Straumann CADCAM GmbH, Germany), or in particular polyoxymethylene (POM), PEEK (polyetheretherketone) or acetal. This allows the space occupied by the cap member in the space casting sand can be completely replaced by the metal being cast and a metal piece so obtained, corresponding to the wax model together with the cap member.

The cap member may also include a projection outwardly at its lower end which can be brought into contact in contact with the top of the collar member of the pillar member.

The areas of the pillar member, which can not come into contact with the thread of the cap member can also be configured concave as seen from the side of the pillar, which is included by "substantially conical". Preferably, only the region below the collar element concave configured, the rest each cone-shaped without any change of the angle to the longitudinal axis.

Figs. La to Fig. _ Le an inventive pillar element in perspective (Fig. 1 b) (Fig. 1 c) show (Fig. 1 a) and in side view and as a longitudinal section (in the two end views of Fig. Ld and FIG . le).

FIGS. 2a through Fig. 2d an inventive cap member in perspective show (Fig. 2 a), in longitudinal section (Fig. 2 b) and Querrschnitt (Fig. 2 c). Fig. 2 d) shows a detail of the threads (X marked point in Fig. 2 b)).

Fig. 3 shows further possible embodiments of a pillar member according to the invention in longitudinal section.

Further embodiments of the invention are found in the claims, which are incorporated herein by reference, in particular in the dependent claims.

The following examples illustrate the invention without limiting it thereto, and also describe preferred embodiments of the invention.

Fig. 1 shows an inventive pillar element 1 with a lower portion 2 (implant interface) and an upper portion 3, which conically taper in opposite direction, in essence, as well as a collar element 4. The upper portion 3 has on its outer side a (helical) thread 5 on.

Fig. 2 shows a corresponding cap member 6 having a lying inside conically shaped section 7, the one having, on the inside of inwardly raised thread portion 8 which can be brought into connection with the thread 5 of the pillar member 1 and in the operating position in modeling is also positioned there. The loftiness of the threaded portion 8 gives the cap element both in the modeling as well as in the form of the metal cast part has a certain degree of freedom and allows, for example, the Kappenelemeht 6, if necessary (eg in the case of bridges) to align a little, so that the (in Fig. 2b vertical as dashed ) shown line axis of the cap member 6 and the axis Y of the pillar member 1 are no longer one another in alignment, which may allow for a fine adjustment of the spatial arrangement, as far as required, in particular in the case of bridges with two or more / cap member combinations can be useful to the pillar element , Even so formed between pillar member 1 and cap member 6, a gap region (not shown), which can be useful for receiving cement during the subsequent cementing of the metal made dental prosthesis part on the pier member 1. A collar portion 9 can be provided, which in the connecting position on the collar element can rest 4 of the corresponding pillar element 1 of FIG. 1. This collar portion may be preferably in the shown hook-shaped (in the plan view shown) form (Beispielununterbrochen or suspended at the collar portion to extend) may be configured with the lower edge outwardly upwardly extending short section below the thread 8 and, arranged about parallel to the surface perpendicular to the axis of the cap member located above flat portion. The threaded portion with the thread 8 of the cap member 6 can also be located further up in the conically shaped portion 7 or below, as long as it can be brought into engagement in the thread of the pillar member. Preferably, the threaded portion is 8 approximately in the center of the conically shaped portion. 7

The cap member 6 has in the embodiment shown here also has a substantially (tube) cylindrical section 10, however, is optional and trimmed or for example when Aufmodellieren a tooth replacement element may be otherwise reduced.

In Fig. 3 a further possible variants of a pillar element 1 according to the invention is shown here by way of example without the lower portion and with exemplary specially shaped implant interface (short section inter alia 11) and in particular a (preferably outwardly-bottom) tapered thread-free lower part (13) 4. on the upper portion 3 collar member 4 is located on the collar member above, preferably, a region 11, which can serve as a stop when mounting a cap member.

Claims

claims
1. A system for modeling an implant dentistry element, characterized in that it contains as components, a pillar element (1) and a Castable
Cap member (6), constitutes the abutment member: (1) at the side facing the implant site an implant interface (2), above a transition region continuous in the axial direction with a around the entire circumference of the pillar element (1) the collar element (4) and above a upwardly tapering cone-like portion (3) which is provided on the outside at least partially with a thread (5), and the cap member (6) has a circular cylindrical section (10) and axially subsequently, one to the cone-like portion (3) of
Pillar member (1) complementary portion (7) having an inwardly directed internal thread (8) which is engageable with the thread (5) of the pillar member (1) is engaged so that it inwardly directed thread (8) aligning on enables and parallel to the conical outer surface of the upper portion (3) of the pillar member (1), comprising.'
2. A system according to claim 1, wherein the thread (8) of the cap member (6) is 2 or more, particularly 2 to 7, for example, 2 to 4 thread turns.
3. System according to claim 1 or 2, wherein the thread (8) of the cap member (6) inward relative to the surrounding surface is designed raised.
are system according to any one of claims 1 to 3, wherein each of said pillar member (1) and the cap member (6) on the mutually engageable threaded pages rotationally symmetrically formed or completely rotationally symmetrically shaped.
5. System according to any one of claims 1 to 4 in the form of a kit comprising two or more of said pillar elements (1) and / or two or more of said cap members (6).
6. System according to claim 5 for modeling a multi-tooth restoration.
7. cap member (6) as such as described in any one of claims 1 to. 4
8. pillar element (1) as such as described in any one of claims 1 or 4th
9. A method for modeling one or more dental prosthesis elements, which implies that it acted on a pillar element (1) according to claim 8 with a cap member (6) according to claim 7 such that with a thread (5) and threaded portion (8) provided sections can engage with each other.
10. The method of claim 9, wherein the engageable by turning and / or clipping is performed.
11. The method according to claim 10 for modeling a multi-tooth replacement, wherein the interconnected at least two cap elements (6) of the abutment elements (1) are removed according to a first modeling step, and are then positioned back on the pillar members by clips.
2. A method according to any one of claims 9, 10 to 11, wherein on the outside of each cap member (6) is modeled according to conventional methods and processes, a dental prosthesis element ,: wherein the pillar member is inserted into an implant analogue in a model of a patient's teeth, and then optionally is converted into a corresponding tooth replacement element according to the Aufmodellieren the resulting structure by embedding in a suitable mass and filling with metal to burn out the burnout or the cap members (6).
3. Use of a system according to one of claims 1 to 6 for modeling one or more dental prosthesis elements.
PCT/EP2016/000427 2015-03-10 2016-03-10 Modelling system for implant-supported tooth replacement element and use thereof WO2016142066A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE201510002948 DE102015002948A1 (en) 2015-03-10 2015-03-10 System for modeling an implant dentistry element and its use
DE102015002948.7 2015-03-10

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DE201621000062 DE212016000062U1 (en) 2015-03-10 2016-03-10 Modeling System for implant-supported dentures element

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5006069A (en) * 1988-11-02 1991-04-09 Implant Innovations, Inc. Periodontal restoration components
US5259759A (en) * 1991-03-27 1993-11-09 Nobelpharma Ab Temporary cylinder
US20090123888A1 (en) * 2007-11-14 2009-05-14 Rosenberg Jeffrey M Universal dental implant system
EP2119414A1 (en) 2005-06-03 2009-11-18 Straumann Holding AG Coupling for a multi-part dental implant system
EP2351536A1 (en) 2010-02-02 2011-08-03 Straumann Holding AG Multi-functional adapter for an implant-supported dental prosthesis
KR20140009523A (en) * 2011-05-25 2014-01-22 히타치 긴조쿠 가부시키가이샤 Keeper for implant, assembly thereof, and method for affixing keeper

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012045356A1 (en) * 2010-10-07 2012-04-12 Bredent Gmbh & Co. Kg Abutment and dental-prosthetic arrangement having such an abutment

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5006069A (en) * 1988-11-02 1991-04-09 Implant Innovations, Inc. Periodontal restoration components
US5259759A (en) * 1991-03-27 1993-11-09 Nobelpharma Ab Temporary cylinder
EP2119414A1 (en) 2005-06-03 2009-11-18 Straumann Holding AG Coupling for a multi-part dental implant system
US20090123888A1 (en) * 2007-11-14 2009-05-14 Rosenberg Jeffrey M Universal dental implant system
EP2351536A1 (en) 2010-02-02 2011-08-03 Straumann Holding AG Multi-functional adapter for an implant-supported dental prosthesis
KR20140009523A (en) * 2011-05-25 2014-01-22 히타치 긴조쿠 가부시키가이샤 Keeper for implant, assembly thereof, and method for affixing keeper

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DE102015002948A1 (en) 2016-09-15 application
DE212016000062U1 (en) 2017-10-24 grant

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