EP2242442A1 - Pilier à incrustation pour implant dentaire - Google Patents

Pilier à incrustation pour implant dentaire

Info

Publication number
EP2242442A1
EP2242442A1 EP09711199A EP09711199A EP2242442A1 EP 2242442 A1 EP2242442 A1 EP 2242442A1 EP 09711199 A EP09711199 A EP 09711199A EP 09711199 A EP09711199 A EP 09711199A EP 2242442 A1 EP2242442 A1 EP 2242442A1
Authority
EP
European Patent Office
Prior art keywords
inlay
abutment
coronal
coronal portion
dental 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Withdrawn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
EP09711199A
Other languages
German (de)
English (en)
Inventor
Fabian Schwieder
Daniel Guenter
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 EP09711199A priority Critical patent/EP2242442A1/fr
Publication of EP2242442A1 publication Critical patent/EP2242442A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
    • A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
    • A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers

Definitions

  • the present invention relates generally to an inlay abutment for connecting between a dental implant and an abutment, in particular for screw or cylindrical dental implants, wherein the inlay abutment provides anti-rotation and allows easy assembly of the prefabricated individual denture.
  • An abutment is generally affixed either as a permanent or provisional element on a dental implant inserted into a patient's jawbone, which is well known.
  • an intermediate element a so-called inlay, is inserted in the direction of the dental implant in the abutment.
  • the abutment can be used both provisionally, for example, during the healing process of a dental implant or permanently at the end of the treatment, to provide a prosthesis modeled on the abutment.
  • the inlay is generally made of a high strength metal or metal alloy to better absorb the forces associated with tightening a connecting screw connecting the inlay abutment to the dental implant.
  • materials for an inlay are particularly suitable gold, titanium or alloys thereof, on the one hand a high mechanical strength and Have stiffness and on the other hand have a very good biocompatibility.
  • the abutment connection assembly and inlay fixed therein is inserted into a cylindrical opening on the coronal portion of a dental implant or on an outer surface of the dental implant during treatment.
  • abutment For reproducible positioning of the abutment, which advantageously allows, for example, an uncomplicated replacement of a temporary abutment with an abutment with attached tooth crown, and for rotational security can be provided in the Aufhahmebohrung of the dental implant or on the outer surface of the dental implant a rücht-rotationally symmetrical Aumahmekontur with a corresponding, non-rotationally symmetrical outer counter contour located on the abutment can engage.
  • the abutment is fixed by screwing in a through a first opening in the abutment and a second opening in the inlay passing through connecting screw in an axially provided inside the dental implant internal thread.
  • a conically formed shaft region of the screw lies in a form-fitting manner against a complementarily formed apical inner cone of the inlay.
  • the thread-free shaft region of the screw is substantially completely enclosed within the inlay, and the apical screw region with external thread is in engagement with a corresponding internal thread of a dental implant.
  • the connecting screw thus provides a fixation of the abutment with a dental implant in the axial direction.
  • the interlocking, non-rotationally symmetrical structures of a one-piece abutment or an abutment with inlay provide for a rotational security around a virtual central axis, ie the abutment with inlay can not rotate with respect to a dental implant.
  • the inlay in this case has an apical region which has a profile formed on the surface, which is suitable for permanent connection production between an abutment and a dental implant.
  • the inlay in this case has at least one shoulder region around which an outer abutment part is formed. This Anformung can eg by means of a molding process, also called "Molding", happen.
  • each molded model is unique and if, for example, errors occur in the production, you have to rework the form costly or create a new abutment.
  • the shoulder areas protrude from the surface of the abutment and, due to the relatively small contact surface in this area, there is a risk that, in the case of an abutment formed thereon, either due to material fatigue or due to the forces arising during chewing, the material connection between the inlay material and the abutment material is detached. When this detachment occurs, the abutment can rotate about its axis, resulting in replacement of the abutment.
  • the connection between abutment inner surface and inlay outer surface must be almost monolithic.
  • One known method of achieving good adhesion between the metal materials is to increase the surface area of the materials to be joined.
  • the above-mentioned shoulder areas of the inlay make it possible to increase the surface to a small extent in comparison to a round-symmetrical design.
  • the materials for molding are different depending on the purpose.
  • Plastics or metal used for temporary abutments because they are inexpensive and also have no special requirements for aesthetics.
  • dentures e.g. Crowns
  • both precious metals and their alloys as well as special ceramics or modern composites are used.
  • the shoulder regions are arranged substantially rotationally symmetrically on the surface of the inlay.
  • a screw is screwed through an opening in the abutment into the dental implant, wherein the conical screw head presses in a complementary inner area of the inlay.
  • This compound achieves strength and stiffening of the dental implant system, however, there is no rotational security in the apical region where the abutment is molded to the inlay. This can lead to a rotational movement of the abutment on the inlay at a deviating from the central axis of force.
  • a displacement of the tooth position even in small dimensions must be prevented in dental technology, both for aesthetic and health reasons.
  • the displacement of the abutment can lead to gaps in which food particles can deposit and cause tooth decay and periodontal disease.
  • a displaced abutment should therefore be replaced as soon as possible.
  • an exchange adds to the cost of creating and using the new abutment, and the patient has to undergo unfavorable new treatment.
  • Another problem is that in the area where the apical, sloped shoulder area of the ,lay forms the interface between the inlay and the dental implant top edge, the cross section of the abutment material formed on the inlay is very thin, so here it may If pressure occurs, eg when chewing hard food, the abutment material may spall.
  • Inlays are relatively expensive to produce, since in machining production, eg milling, several steps are required to form the relatively filigree shoulder areas, or in the production of a primary molding very expensive prototypes must be made.
  • a particular object of the present invention is to find a solution that provides a rotational security for a molded abutment.
  • a further object of the present invention is to realize an abutment with an inlay, which is inexpensive to produce and assemble.
  • Fig. 1 is a sectional view of an abutment with inlay in assembled representation according to a Aus spairungsform of the invention
  • Fig. 2A is a side view of an inlay according to one embodiment of the invention.
  • Fig. 2B is a plan view of the inlay of Fig. 2A;
  • Fig. 2C is a bottom view of the inlay of Fig. 2A;
  • Fig. 2D is a perspective view of the inlay of Fig. 2A.
  • Fig. 3 is a sectional view of an abutment with inlay in assembled representation according to another embodiment of the invention.
  • An abutment with an inlay for a dental implant restoration which as such is well known and therefore not further described, comprises an outer Abutmentteü V within which apically an inlay 2 is arranged.
  • the inlay 2 coronai has an outer portion 3 which is adapted to make a connection between inlay 2 and outer abutment part 1 'and an apical area 4 which is suitable for releasable connection with a dental implant.
  • the surface 5 of the coronal portion 3 of the inlay 2 is designed in such a way as to positively connect an outer abutment part 1 'which is to be attached to it in a practically undetachable manner.
  • a previously produced outer abutment part V is easily pressed onto the coronal section 3 of the inlay 2.
  • the outer abutment part V can be sprayed onto the inlay 2. Since no molding process is necessary here, a large number of variants of abutments 1 can be produced extremely inexpensively. This is particularly important when using provisional abutments 1, as these have no high aesthetic requirements. Complicated equipment for the preparation, e.g. Molding, are not necessary. A simple press is enough to set up the outer abutment part 1 '.
  • At least a part or even the entire surface 5 of the coronal section 3 of the inlay 2 has a profile which is described in greater detail in FIGS. 2A-D, with which the outer abutment part I 1 is connected.
  • the abutment part 1 ' is substantially monolithic in the connected form with the inlay 2.
  • the coronal section 3 is adjoined by a cylindrical cylindrical section 6, which is enclosed by a first edge 7 and a second edge 8.
  • One O conical shoulder region 9 is formed between the rotationally symmetrical cylindrical portion 6 and the second edge 8.
  • a conical region 10 extends in diameter decreasing from the second edge 8 in the direction of the apical region 4, which serves for use in a complementary cone region of the dental implant, not shown.
  • FIGS 2A to 2D show further features of the inlay 2 for clarity in various views.
  • the coronal section 3 consists in this embodiment of a plurality of elevations 11 and recesses 12 arranged therebetween.
  • the coronal surface 5 of the coronal section 3 of the inlay 2 can be produced by means of a cutting method, such as milling, or a non-cutting method, such as embossing, getting produced.
  • the plurality of elevations 11 and depressions 12 on the surface 5 of the coronal section 3 of the inlay 2 are in this case arranged symmetrically and suitable for pressing on or injecting an outer abutment part 1 '.
  • the positive connection thus formed produces an almost monolithic unit and a rotation of the outer abutment part 1 'about its own axis is thus no longer possible.
  • At the outer abutment part V side facing an upper edge 15 of the coronal portion 3 is bevelled at an angle of about 45 degrees, so that the réellepressende or legislative sprayende outer abutment part 1 'can be easily placed or made.
  • the plurality of ridges 11 and depressions 12 increase the overall surface area of the coronal portion 3 and therefore better adhesion of the abutment material to the surface 5 of the coronal portion 3 results.
  • the outer abutment portion 1 ' can be injection molded positively connected to the inlay 2 inextricably.
  • the profiles on the surface 5 of the coronal section 3 are also possible, e.g. the profile can only be partially formed on the surface.
  • the surfaces may be provided with grooves, a cross-type structure, or randomly applied structures, at least one of which has an axial direction to provide anti-rotation.
  • FIG. 3 shows a further embodiment of an abutment with inlay according to the present invention.
  • the embodiment of Figure 3 is similar to that of Figures 1 to 2D, so that basically the same reference numerals as in Figure 1 or Figures 2A to 2D are used
  • the conical region 10 extends in diameter decreasing from the second edge 8 in the direction of the apical region 4, which serves for insertion into a complementary cone region of the dental implant, not shown, with a slight curvature.
  • the conical shoulder region 9 in cross-section in this embodiment is larger than that of the embodiment in Figure 1.
  • the apical portion 112 of the outer Abutmentteils V is pear-shaped and has a shoulder 113, which then in a cylindrical portion 114th merges, which corresponds essentially to the outer diameter of the inlay 2.

Landscapes

  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dental Prosthetics (AREA)

Abstract

L’invention a trait à un pilier à incrustation pour implant dentaire comprenant un élément de pilier extérieur (1') ; et une incrustation (2), qui est disposée à l’intérieur de l’élément de pilier extérieur (1') en position apicale, ladite incrustation (2) présentant une partie coronaire (3) qui convient pour réaliser un assemblage entre l’incrustation (2) et l’élément de pilier extérieur (1'), et une région apicale (4, 104), qui convient pour une liaison démontable avec un implant dentaire, caractérisé en ce que la surface (5) de la partie coronaire (3) de l’incrustation (2) est conçue de telle manière à réaliser un assemblage sécurisé de l’élément de pilier extérieur (1')et de le rendre ainsi indémontable.
EP09711199A 2008-02-13 2009-02-11 Pilier à incrustation pour implant dentaire Withdrawn EP2242442A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09711199A EP2242442A1 (fr) 2008-02-13 2009-02-11 Pilier à incrustation pour implant dentaire

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP08151358A EP2090263A1 (fr) 2008-02-13 2008-02-13 Butée dotée d'un inlay pour implants dentaires
PCT/EP2009/051574 WO2009101109A1 (fr) 2008-02-13 2009-02-11 Pilier à incrustation pour implant dentaire
EP09711199A EP2242442A1 (fr) 2008-02-13 2009-02-11 Pilier à incrustation pour implant dentaire

Publications (1)

Publication Number Publication Date
EP2242442A1 true EP2242442A1 (fr) 2010-10-27

Family

ID=39591396

Family Applications (2)

Application Number Title Priority Date Filing Date
EP08151358A Withdrawn EP2090263A1 (fr) 2008-02-13 2008-02-13 Butée dotée d'un inlay pour implants dentaires
EP09711199A Withdrawn EP2242442A1 (fr) 2008-02-13 2009-02-11 Pilier à incrustation pour implant dentaire

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP08151358A Withdrawn EP2090263A1 (fr) 2008-02-13 2008-02-13 Butée dotée d'un inlay pour implants dentaires

Country Status (10)

Country Link
US (1) US20100311011A1 (fr)
EP (2) EP2090263A1 (fr)
JP (1) JP5343093B2 (fr)
KR (1) KR20100121633A (fr)
CN (1) CN101945619A (fr)
AU (1) AU2009214117A1 (fr)
BR (1) BRPI0907807A2 (fr)
CA (1) CA2715120A1 (fr)
WO (1) WO2009101109A1 (fr)
ZA (1) ZA201006510B (fr)

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US10441387B2 (en) 2012-07-09 2019-10-15 Nobel Biocare Services Ag Abutment system and dental methods

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GB2509138A (en) 2012-12-21 2014-06-25 Nobel Biocare Services Ag Dental component with screw fixation
GB2509135A (en) * 2012-12-21 2014-06-25 Nobel Biocare Services Ag An abutment with conical metal adapter
GB2509136A (en) * 2012-12-21 2014-06-25 Nobel Biocare Services Ag Dental component with metal adapter
GB2518849A (en) 2013-10-01 2015-04-08 Nobel Biocare Services Ag Dental Kit-of-parts and Method of assembling the same
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DE102016008669B4 (de) * 2016-07-20 2018-10-11 Bruno Spindler Suprastrukturträger mit besonderer Implantatpfostengeometrie
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10441387B2 (en) 2012-07-09 2019-10-15 Nobel Biocare Services Ag Abutment system and dental methods

Also Published As

Publication number Publication date
US20100311011A1 (en) 2010-12-09
ZA201006510B (en) 2011-11-30
BRPI0907807A2 (pt) 2015-07-14
EP2090263A1 (fr) 2009-08-19
CA2715120A1 (fr) 2009-08-20
AU2009214117A1 (en) 2009-08-20
JP2011511687A (ja) 2011-04-14
JP5343093B2 (ja) 2013-11-13
WO2009101109A1 (fr) 2009-08-20
KR20100121633A (ko) 2010-11-18
CN101945619A (zh) 2011-01-12

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