DE102015002948A1 - System for modeling an implant-supported denture element and its use - Google Patents

System for modeling an implant-supported denture element and its use

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Publication number
DE102015002948A1
DE102015002948A1 DE102015002948.7A DE102015002948A DE102015002948A1 DE 102015002948 A1 DE102015002948 A1 DE 102015002948A1 DE 102015002948 A DE102015002948 A DE 102015002948A DE 102015002948 A1 DE102015002948 A1 DE 102015002948A1
Authority
DE
Germany
Prior art keywords
element
pillar
thread
cap
implant
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
DE102015002948.7A
Other languages
German (de)
Inventor
Philippe Kern
Isabell Wiestler
Andreas van Ophuysen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Straumann Holding AG
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.)
Filing date
Publication date
Application filed by Straumann Holding AG filed Critical Straumann Holding AG
Priority to DE102015002948.7A priority Critical patent/DE102015002948A1/en
Publication of DE102015002948A1 publication Critical patent/DE102015002948A1/en
Application status is Withdrawn legal-status Critical

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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

System for modeling an implant-supported dental prosthesis element, characterized in that it comprises as components a pillar element (1) and a burn-out cap element (6), wherein the pillar element (1) on the side facing the implant an implant interface (2), in the axial direction above a transition region with a collar element (4) extending around the entire circumference of the pillar element (1) and above it an upwardly tapering cone-like portion (3) which is at least partially provided with a thread (5) on the outside, and the cap element (6) a circular cylindrical portion (10) and then axially adjacent to the conical portion (3) of the pillar member (1) complementary portion (7) with an inwardly directed internal thread (5) with the thread (5) of the Pillar member (1) is engageable, so that this inwardly directed thread (8) aligning and parallel to the ko niche outer surface of the upper portion (3) of the pillar element (1) allows, and use of the system and method for said modeling.

Description

  • The invention relates to a system for modeling an implant-supported tooth replacement element (dental prosthesis) and its use.
  • Are known multifunctional adapter (hereinafter referred to as cap member) for a pillar element for the production of implant-supported dental prostheses (dentures), which consist of a Scannable material and are burned out ( EP 2351536 A1 ). These already allow the preparation of excellent dentures, but there is still a need to optimize the connection between the cap member and the pillar member to allow for more flexibility in the fine-tuning and / or easier manipulation in denture modeling.
  • Against this background, the invention relates to an aforementioned system for modeling an implant-supported dental prosthesis element (dental prosthesis), characterized in that it includes a pillar element (abutment) and a burn-out cap element (coping) as components, as well as the individual components as separate subject matter of the invention. The pillar element has an implant interface on the side facing the implant (base), a transition area in the axial direction with a collar element (in a plane perpendicular to the axis of the pillar element) around the entire circumference of the pillar element and above (in the upper part) upwardly tapered cone-like portion which is at least partially provided on the outside with an (outward) thread. The cap member has a circular cylindrical portion and, axially thereafter, a portion complementary to the conical portion of the pillar member having an inwardly directed internal thread engageable with the thread of the pillar member, such that the inwardly directed thread aligns and allows parallel to the conical outer surface of the upper portion of the pillar element, wherein the inwardly directed threaded portion preferably 2 or more, in particular 2 to 7, z. B. has 2 to 4 threads and preferably inwardly towards the surrounding surface raised (inwardly towards the said surface increased) is configured.
  • An implant-supported dental prosthesis element can be, for example, a single tooth restoration such as a crown or its precursor or a multi-tooth restoration such as a bridge or its precursor. In the context of the invention, multi-tooth restorations on at least two implants are preferred.
  • As the implant interface of the pillar element, a common interface for implantation of implant and pillar element can be used. This can be, for example, a cone tapering into the implant or also a polygon which is complementary to a polygon of the implant, the inside or the outside of the base of the pillar element being designed as a polygon at least in one section. The implant interface may also be a combination of several geometries, such as cone and polygon. Examples of implant interfaces are in EP 2119414 A preferred implant interface is a cone that tapers into the implant.
  • Preferably, both the pillar element and the cap member are rotationally symmetrical formed on the mutually engageable thread sides or they are in particular formed completely rotationally symmetrical and so very easy to produce and handle.
  • The invention also relates to the use of the inventive system or a method for modeling a dental prosthesis element, which is characterized in that a pillar element according to the invention with a cap member according to the invention acted such that the threaded portions can engage with each other, for example by Turning and / or clipping, and then modeled on the outside of the cap member by conventional methods and procedures (such as waxing) the dental prosthesis element. Preferably, the cap member is rotated at least at the end of the placement operation to prevent rotational or vertical movement. Usually, the pillar element is used for modeling in an implant analog in a model obtained by molding the patient's dentition.
  • After the modeling, the resulting structure can then be converted into the corresponding metal part by embedding it in a suitable mass (e.g., sand with binder) and pouring metal to burn out the burnable cap element (s) (preferably after milling out the original one) Cap element originating threaded portion) is fixed to the pillar element, for example using a conventional cement, wherein the pillar element or, for example, in a bridge, the pillar elements is connected to one implant, for example by screwing by means of a screw.
  • To (especially in the case of modeling dentures for bridges) a To obtain certain flexibility for correcting position, the threaded portion of the cap member relative to the overlying and underlying inner side of the cap member is advantageously designed inwardly raised (protruding), so that the cap member, which preferably has a certain deformability, even after connection with the pillar element still a little can be moved relative to this such that its upper end relative to the longitudinal axis of the pillar member is pivotable to some extent, that is, cap member and pillar element engage only in the threaded portion one another. The corresponding methods are known in principle to the person skilled in the art.
  • Preferably, the lower edge portion of the cap member is formed such that it comes to rest on positioning the cap on the pillar member so that it comes close to or in contact with the upper part of the collar element of the pillar element, but without completely enveloping or to this collar element include.
  • In the case of bridges over multiple implants, the cap elements are connected by bridging sections, such as wax, during modeling.
  • The above and subsequent definitions make it possible to replace more general terms individually, in several or all of embodiments of the invention, and thus to define preferred embodiments of the invention.
  • The number of threads indicates the number of turns (arranged in the form of a spiral) of the thread. For example, two threads means that the spiral-shaped protruding portion forming the thread and / or the recessed portion forming the thread are spaced twice around the respective member about its respective axis.
  • The protruding and / or withdrawn portions forming the thread or threads may be continuously interrupted (without interruption in the course of or in the respective element) in a manner which does not affect the thread function as such (ie untwisting remains ensured ), z. B. they may be present individually or both interrupted after each half, third, quarter, fifth or sixth revolution about the axis of the respective pillar or cap member.
  • The thread on the pillar element usually has a thread depth greater than 8 microns, preferably between 8 and 50 microns, more preferably between 8 and 20 microns, and most preferably between 8 and 15 microns. The thread in the cap member is preferably complementary thereto. It is also possible a multi-thread, with a catchy is preferred.
  • The thread covers the conical top of the pillar member at least in the region where the cap member has the inwardly directed thread, but preferably at least 50% of the top, more preferably at least 80% of the top, and most preferably the entire top.
  • The thread inside the cap member is usually spaced 10 to 200 microns from the inner wall of the cone, and preferably 80 to 120 microns.
  • The burn-out cap member is preferably made of a completely and residue-free decomposing material during heating during metal casting, such as. As polyacrylic methacrylate (PMMA), such as Polycon (Straumann CADCAM GmbH, Germany), or in particular polyoxymethylene (POM), peek (polyether) or acetal. This allows the space occupied by the cap member in the casting sand to be completely replaced by the metal to be cast, thus obtaining a piece of metal corresponding to the wax model together with the cap member.
  • The cap member may also have at its lower end an outward projection which may be brought into contact with the top of the collar member of the pillar member.
  • The portions of the pillar member that can not come into contact with the thread of the cap member may also be concave as viewed from the side of the pillar, which is included in "substantially cone-shaped". Preferably, only the area below the collar element is configured concave, the remainder each cone-shaped without changing the angle to the longitudinal axis.
  • shows an inventive pillar element in oblique supervision ( 1a ) and in lateral view ( 1b ) and as a cross section in the longitudinal direction ( 1c ) and in the transverse direction ( 1d ).
  • shows an inventive cap member in oblique view ( 2a ), in cross-section in the longitudinal direction ( 2 B ) and in the transverse direction ( 2c ). 2d ) shows a section of the thread (X marked point 2 B) ).
  • shows a further possible embodiment of a pillar element according to the invention in cross section.
  • Further embodiments of the invention can be found in the claims, which are incorporated herein by reference, in particular in the subclaims.
  • The following examples illustrate, but are not limited to, the invention, and also describe preferred embodiments of the invention.
  • shows a pillar element according to the invention 1 with a lower section 2 (Implant interface) and an upper section 3 , which taper in each case in the opposite direction substantially conically, and a collar element 4 , The upper section 3 has on its outside a (spiral) thread 5 on.
  • shows a corresponding cap member 6 , which has an internal conical shaped section 7 has, on the inside an inwardly raised threaded portion 8th that is with the thread 5 of the pillar element 1 can be brought into connection and in position of use during modeling is also positioned there. The grandeur of the threaded section 8th gives the cap member a certain degree of freedom both in modeling and in the shape of the metal casting and, for example, allows the cap member 6 if necessary (eg in the case of bridges) to align a little so that the axis of the cap member 6 and that of the pillar element 1 no longer coincide with each other, which may allow fine adjustment of the spatial arrangement, as necessary, which may be particularly helpful in the case of bridges with two or more of the pillar element / cap element combinations. This also creates between pillar element 1 and cap element 6 a gap region that may be useful for receiving cement during later cementing of the metal dental prosthesis to the pillar element 1 , A collar area 9 can be provided in the connecting position on the collar element 4 the corresponding pillar element 1 out can rest. This collar region can preferably be configured in the hook-shaped form shown with a short section running upwards at the lower edge 11 and an overlying, lying parallel to the surface perpendicular to the axis of the cap member flat portion 12 , The threaded section with the thread 8th of the cap element 6 can also be higher up in the conically shaped section 7 be located or below, as long as it can be engaged in the thread of the pillar element. Preferably, the threaded portion is located 8th approximately in the middle of the conically shaped section 7 ,
  • The cap element 6 also has a substantially circular cylindrical section in the embodiment shown here 10 but which is optional and can be trimmed or otherwise scaled down, for example, when modeling a denture element.
  • In 3 is another possible variants of a pillar element according to the invention 6 shown here by way of example without the lower section and with an exemplary specially shaped implant interface and in particular a beveled unthreaded lower part ( 13 ) of the upper section 3 ,
  • QUOTES INCLUDE IN THE DESCRIPTION
  • This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
  • Cited patent literature
    • EP 2351536 A1 [0002]
    • EP 2119414 [0005]

Claims (11)

  1. System for modeling an implant-supported tooth replacement element, characterized in that it comprises as components a pillar element ( 1 ) and a burn-out cap element ( 6 ), wherein the pillar element ( 1 ) on the implant-facing side an implant interface ( 2 ), in the axial direction above a transition region with an around the entire circumference of the pillar element ( 1 ) going collar element ( 4 ) and above it an upwardly tapering cone-like portion ( 3 ) which on the outside at least partially with a thread ( 5 ), and the cap element ( 6 ) a circular cylindrical section ( 10 ) and then axially thereafter to the cone-like portion ( 3 ) of the pillar element ( 1 ) complementary section ( 7 ) with an inwardly directed internal thread ( 5 ), which with the thread ( 5 ) of the pillar element ( 1 ) is engageable so that this inwardly directed thread ( 8th ) an alignment on and parallel to the conical outer surface of the upper portion ( 3 ) of the pillar element ( 1 ).
  2. System according to claim 1, wherein the thread ( 8th ) of the cap element ( 6 ) 2 or more, especially 2 to 7, z. B. has 2 to 4 threads.
  3. System according to claim 1 or 2, wherein the thread ( 8th ) of the cap element ( 6 ) is designed to be raised inwards towards the surrounding surface.
  4. System according to one of claims 1 to 3, wherein both the pillar element ( 1 ) as well as the cap element ( 6 ) are rotationally symmetrical formed on the threaded sides engageable with each other or formed completely rotationally symmetrical.
  5. System according to one of claims 1 to 4 in the form of a set, comprising two or more of said pillar elements ( 1 ) and / or two or more of said cap elements ( 6 ).
  6. Cap element ( 6 ) as such as described in any one of claims 1 to 4.
  7. Pillar element ( 1 ) as such as described in any one of claims 1 or 4.
  8. Method for modeling one or more dental prosthesis elements, which comprises using a pillar element ( 1 ) according to claim 7 with a cap element ( 6 ) acted upon according to claim 6 such that the with a thread ( 5 ) or threaded section ( 8th ) provided portions can engage with each other.
  9. The method of claim 8, wherein the engaging is performed by turning and / or clipping.
  10. The method of claim 8 or 9, wherein on the outside of each cap member ( 6 ) is modeled by conventional methods and methods, a dental prosthesis element, wherein the pillar element is used in an implant analog in a model obtained by molding the patient dentition, and then optionally after modeling the resulting structure by embedding in a suitable mass and pouring metal to burn out the or the burnable cap elements ( 6 ) is converted into a corresponding metal part.
  11. Use of a system according to one of claims 1 to 5 for modeling one or more dental prosthesis elements.
DE102015002948.7A 2015-03-10 2015-03-10 System for modeling an implant-supported denture element and its use Withdrawn DE102015002948A1 (en)

Priority Applications (1)

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

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102015002948.7A DE102015002948A1 (en) 2015-03-10 2015-03-10 System for modeling an implant-supported denture element and its use
PCT/EP2016/000427 WO2016142066A1 (en) 2015-03-10 2016-03-10 Modelling system for implant-supported tooth replacement element and use thereof
DE212016000062.4U DE212016000062U1 (en) 2015-03-10 2016-03-10 Modeling system for implant-supported dental prosthesis element

Publications (1)

Publication Number Publication Date
DE102015002948A1 true DE102015002948A1 (en) 2016-09-15

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DE212016000062.4U Active DE212016000062U1 (en) 2015-03-10 2016-03-10 Modeling system for implant-supported dental prosthesis element

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Application Number Title Priority Date Filing Date
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WO (1) WO2016142066A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US8845327B2 (en) * 2006-11-10 2014-09-30 Straumann Holding Ag Casting abutment for a dental implant
EP2624781B1 (en) * 2010-10-07 2015-04-22 Bredent Gmbh & Co. Kg Abutment and dental-prosthetic arrangement having such an abutment

Family Cites Families (3)

* 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
SE469159B (en) * 1991-03-27 1993-05-24 Nobelpharma Ab The cylinder intended to anvaendas in a temporaer, implantatstoedd dental bridge / dental prosthesis
US20090123888A1 (en) * 2007-11-14 2009-05-14 Rosenberg Jeffrey M Universal dental implant system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2119414A1 (en) 2005-06-03 2009-11-18 Straumann Holding AG Coupling for a multi-part dental implant system
US8845327B2 (en) * 2006-11-10 2014-09-30 Straumann Holding Ag Casting abutment for a dental implant
EP2351536A1 (en) 2010-02-02 2011-08-03 Straumann Holding AG Multi-functional adapter for an implant-supported dental prosthesis
EP2624781B1 (en) * 2010-10-07 2015-04-22 Bredent Gmbh & Co. Kg Abutment and dental-prosthetic arrangement having such an abutment

Also Published As

Publication number Publication date
WO2016142066A1 (en) 2016-09-15
DE212016000062U1 (en) 2017-10-24

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R163 Identified publications notified
R119 Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee