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WO2011003373A1 - Implant disque - Google Patents

Implant disque Download PDF

Info

Publication number
WO2011003373A1
WO2011003373A1 PCT/DE2010/000402 DE2010000402W WO2011003373A1 WO 2011003373 A1 WO2011003373 A1 WO 2011003373A1 DE 2010000402 W DE2010000402 W DE 2010000402W WO 2011003373 A1 WO2011003373 A1 WO 2011003373A1
Authority
WO
WIPO (PCT)
Prior art keywords
disc
disk
base
section
implant
Prior art date
Application number
PCT/DE2010/000402
Other languages
German (de)
English (en)
Inventor
Stefan Ihde
Original Assignee
Biomed Est.
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
Priority claimed from DE200920009141 external-priority patent/DE202009009141U1/de
Priority claimed from DE200920009142 external-priority patent/DE202009009142U1/de
Application filed by Biomed Est. filed Critical Biomed Est.
Publication of WO2011003373A1 publication Critical patent/WO2011003373A1/fr

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
    • A61C8/001—Multiple implanting technique, i.e. multiple component implants introduced in the jaw from different directions

Definitions

  • the invention relates to a disc implant, which is anchored by basal osseointegration in the jaw cooking and serves as a basis for receiving and fixing a dental prosthesis.
  • the invention relates to a disk implant for use in a jawbone comprising: a skeletonized base disc having intermeshing, divergent geometrical basic shapes which uncutly form disc sections with different surface contents, a first disc section adjoined by a second disc section without offset has approximately round basic geometric shape, and wherein the adjoining the first disc portion second disc portion is approximately rectangular, and wherein the base disc has on its upper side via webs fixedly connected to the base disc and orthogonal to the base disc arranged shaft, the outside of the center of gravity base disc is positioned.
  • Disk or disk implants which are inserted from the side in a basal, made by milling in the jaw bone, T-shaped implant bed are already known in a variety of embodiments.
  • this multiplicity of design variants is necessary in order to provide the respectively suitable or most suitable implant for the most diverse conditions of use.
  • extensive measures have recently been taken to further develop and improve the basal osseointegrating disc implants.
  • the focus of these developments is primarily on further improving and structuring the basic disc, which is a crucial element for a permanently fixed fit of the implant in the jawbone and over which the chewing forces are registered in the jawbone as evenly as possible.
  • the general aim of the developments is therefore to achieve a large, broad-based implant support in the jawbone and a high primary strength, which allow rapid loading of the implant after insertion.
  • Jawbone and for a permanent tight fit of the implant are beneficial because it improves the blood supply in the jawbone and strengthens the formation of new tissue for the osseointegration of the implant, stimulated and supported by these base discs.
  • the base disc In the skeletal training must be ensured in any case, that the base disc sufficient stability and
  • Disc implants that meet these conditions and have a circular, a square or combinations of these basic disc shapes are already known for example from EP 09 35 949 B1, DE 299 17 858 U1.
  • Disk implants having a plurality of base disks DE 299 08 207 U1 arranged in different horizontal planes are also known.
  • disk implants with a skeletonized base disk which are formed by two disc sections differing in their configuration and having different surface areas.
  • the disc section lying in the direction of insertion of the implant essentially has a circular basic shape and adjoins without any offset to a disc section with a rectangular basic shape.
  • Orthogonal to the base disc is arranged a shaft, which is positioned outside the solicitteilatissues and via webs with the
  • Base disc is firmly connected.
  • the shaft can be used as a simple cementing post be formed or provided with a head thread for receiving and fixing an abutment.
  • the basal osseointegrating disc implants described above have been proven in the past and have achieved good results.
  • an implant which is also capable of greater forces in the region of the disc section lying in the direction of insertion
  • the invention is therefore based on the first object to close this gap and specify a disk implant with an even wider support on the cortical bone of the jaw bone and a further improved bone retention, which also ensures a high primary stability after insertion.
  • Jawbone out, bendable retention element is equipped.
  • This retention element which is usually designed as a tab, is provided with means for receiving an osteomial screw, which in turn is screwed into the jawbone from the outside.
  • FR 2 863 477 A1 for a disc implant with two base discs which are mounted on a common vertical axis are arranged with each other at a vertical distance. While the basal disc lying to the coronal has a circular geometric shape, the base disc directed to apical is formed by two disc sections with different geometric basic shapes and different surface contents. The disk section of this base disk, which is opposite to the direction of insertion, is formed into a tab which, after the insertion of the implant, is bent toward the outside of the jaw and serves to receive a screw which secures the retention of the inserted implant in the implant bed.
  • the invention is therefore based on the further object to provide an "internal" backup, which ensures a positionally correct retention of the inserted implant in the implant bed permanently.
  • the first object is achieved in that the in
  • Insertion direction lying first disc portion is formed by circle segments, and that the approximately rectangular disc portion has concave longitudinal sides, to each of which one of the circular segments without heels adjoins, wherein opposite to the insertion direction end face of the second disc portion is provided with a constriction.
  • a base plate with a larger contact surface in the region of the shaft on the cortex of the jaw bone in Insertion direction lying disc portion of the base disc, which has an approximately circular geometric shape, formed by circle segments whose radius, measured from the shaft center, is greater than the distance of the outer contour of the round disc portion to the center of the shaft in the longitudinal axis of the implant.
  • the circular disk section formed by the circular segments is adjoined without offset by a disk section which is rectangular in its basic geometric shape and whose longitudinal sides are concave in accordance with the invention.
  • the rectangular disc portion with the concave longitudinal sides terminates with a front side opposite to the insertion direction, which has a constriction and has at this end face opposite the
  • Base disc width B1 at the insertion side of the implant a smaller width B2.
  • the width B1 of the base disk is approximately 1 to 3 times the difference between the diameter of the full circle of the shank and the distance of the full circle to the actual side surfaces of the shank greater than the width B2, which is also the nominal size of the base disk ,
  • Base disc dimensions may be provided in the rectangular disc portion at least one transverse web, which is each equipped with the proposed constriction.
  • This constriction is inventively ever formed into a tongue, each extending in the insertion direction and each in a recess in the
  • Bone retention can be used.
  • the base disk of the implant according to the invention also has in the region of the end portion of the second opposite to the insertion direction
  • Disk section a deviating from the disk height H1 greater height H2.
  • the greater height H2 forms a wedge-shaped reinforcement in the region of the end portion, which is optionally on the top and / or bottom of the Base disk can be provided and preferably runs at a constant distance circular to the shaft of the implant.
  • the disc portion of the base disc lying in the insertion direction has a straight end face, at each of whose ends a circular segment adjoins, the radius of which, as stated above, is greater than the distance of the straight
  • a base plate for a disk implant with a greater addressbasigen support the insertion side on the cortex of the jaw bone, which is able to absorb larger forces in the region of the implant shaft and enter into the jawbone.
  • the implant bed in the area of the long side was milled out a bit wider than was actually required.
  • the implant according to the invention avoids these circumstances in that the longitudinal sides of the rectangular disc section are concave.
  • the implant with the concave longitudinal sides can be much easier to handle in the insertion process and despite the greater width B1 on the insertion side much easier to use than implants with straight, parallel longitudinal sides in the rectangular disc portion of the base disc.
  • the implant bed is then inserted at an angle ⁇ 90 °. This has the consequence that, in particular for implants with a round geometry of the base disc, no broad base implant support on the
  • Cortex of the jawbone can be achieved and it disadvantageously too a punctiform support comes.
  • the invention avoids this disadvantage by oriented in the direction of the recesses in the base disc
  • implants allows greater implant support on the cortex. Another advantage of this solution is that the implant can be used for both the right and left sides of the jaw.
  • the implant adjacent to the constriction portions of the front side of the base disc, which are rounded in the standard version, provided with a tapered toothing or the portions of the front side of the base disc are alternatively pointed.
  • This embodiment is advantageous if the implant has to be introduced at an approximately acute angle to the outside of the jaw and has to be slightly screwed in to reach its end position about the axis of the shank, which is readily possible due to the concave longitudinal sides of the base disc.
  • the pointed portions which can be bent out to the underside of the implant if necessary, then act as spikes, which penetrate into the jawbone and prevent unscrewing the implant from its final position.
  • Osteomic slit or pressed on the cortex of the jawbone and thereby not only ensures the inserted position of the implant additionally, but also provides for a higher primary strength of the inserted implant.
  • Arrangement of the wedge-shaped reinforcement in the region of the end portion of the base disk also has the advantage that the retention effects only occur when the implant has approximately reached its end position. Adverse effects of the wedge-shaped reinforcement, which could possibly complicate the introduction of the implant into the implant bed, are caused by the
  • the circular profile of the reinforcement of the end section according to the invention ensures that the constriction formed into an inner tongue in the end-side end face of the rectangular disk section has no reinforcement.
  • the lying in the insertion direction tongue with the disc height H1 can thereby be bent after insertion of the implant without much effort in the direction of the bottom of the base disc, since it has received no additional reinforcement and thus forms an inner
  • Disc portion of the skeletal base disc with the largest surface area a retention element which extends in the insertion direction and is preferably formed by a tongue which is to be bent after completion of the insertion into the interior of the jaw bone.
  • the end face of the opposite to the insertion direction of the disc portion of the base disc has a constriction leading to a tongue extending in the insertion direction of the
  • Implantates extends and engages in a recess of the skeletonized base disc, is formed. This tongue then also forms a retention element, which after completion of the insertion of the implant into the interior of the
  • Jawbone i. is bent into the cancellous bone and secures the retention of the implant in the jawbone.
  • FIG. 2 is a plan view of the formed according to the invention base plate of the implant with the section A - A,
  • FIG. 3 shows the plan view of a base plate according to the invention according to a
  • Fig. 4 is a plan view of the base plate with toothed trained
  • Fig. 5 is a schematic representation of an inserted implant after the
  • This implant shaft 3 can, as is generally known, be formed as a simple cementing post or, as shown in the present example, be equipped with an abutment 5 for receiving and fastening a crown or the abutment part of another dental prosthesis.
  • the base plate 2, to which the shaft 3 is fixedly connected via webs 4, with the exception of the insertion direction 13 lying end portion 8 has a predetermined height H1, which expires according to a feature of the invention in the region of the end portion 8 to a larger disc height H2 wedge-shaped , With the inventive design of the end portion 8, a greater retention is achieved because by the wedge-shaped reinforcement 30 in the region of
  • Endabiteses 8 the underside of the base plate 2 is pressed with additional forces on the cortical bone 28 of the jawbone.
  • the wedge-shaped reinforcement 30, which may optionally be provided on the underside of the base plate 2 or on its top and bottom, runs, as shown in Fig. 2, at a constant distance circularly to the implant shaft 3 and preferably extends to the Range of the end section 8. This ensures that the through the
  • Keil penalen forces occur only when the implant 1 has reached approximately its end position and any insertion problems that could be caused by reinforcements on the webs and / or other portions of the base disc are excluded.
  • FIG. 1 A preferred embodiment of the implant 1 according to the invention with a greater width base support of the base plate 2 on the insertion side is shown in FIG.
  • the circle segments 20; 20a each without offset on one of the longitudinal sides 9; 10 of approximately geometric in its basic geometric shape
  • Disk section 7 connected to the one opposite to the insertion direction end face 11, which is smaller than the disk width B1
  • Slice width B2 has, completes.
  • the disk width B1 is chosen so that it is greater than the width B2 of the difference between the diameter of the full circle 19 of the implant shaft 3 and the distance of the full circle 19 to the side surfaces 17 of the implant shaft 3 by 1 to 3 times
  • the longitudinal sides 9; 10 of the disc portion 7 concave, while the end face 11 and in the present embodiment, the cross bar 24 with constrictions 18; 18a are provided.
  • These constrictions 18; 18a are to tongues 25; 26 formed, which are directed in the insertion direction 13 of the implant 1 and in the recesses 15; 16 of the disc portion 7 engage.
  • the tongues 26; 25 form retention elements, which after the insertion of the invention
  • Implantates 1 are bent in the direction of cancellous bone 29 of the jaw bone 27 - Fig. 5 - and cause an internal bone retention, the
  • the wedge-shaped reinforcement 30 extends in the region of Endabiteses 8 circular to the implant shaft 3 and thus does not extend over the entire surface of the tongue 25.
  • the tongue 25 thereby has a reinforced end portion which is detected by the wedge-shaped reinforcement 30 of the end portion 8 and a lying in the longitudinal axis of the base disc 2 tongue tip with a lower material thickness, which makes it easier to bend out.
  • Partial areas 31; 32 rounded. Under certain conditions of use, it is often advantageous to have means in the end region of the base disk with the aid of which the inserted end position of the implant can additionally be fixed.
  • the portions adjacent to the constriction 18 31; 32 provided with a tapered toothing 33 or alternatively formed into a point.
  • the pointed toothing 33 or the shaped tips of the sections 31; 32 work like spikes, which penetrate into jawbone and additionally fix the inserted implant 1.
  • the end face 22 located in the insertion direction 13 is omitted.
  • the approximately circular disk portion 6 of the base disk 2, which is approximately round in its geometrical basic shape, is made up either of two
  • Circle segments 20; 20a together, as described above, have a radius 23 which is greater than the distance 21 of the outer contour of the
  • an implant 1 which has a greater broad base support and support on the cortical bone 28 of the jaw bone 27 on the insertion side and can thus absorb higher forces and safely enter into the jaw.
  • the concave longitudinal sides 9; 10 of the disc portion 7 and provided on the implant shaft 3 side surfaces 17 in direct contact with the vertical surfaces of the horizontal and vertical Osteomieschlitzes.
  • the implant 1 can thereby be inserted more easily, wherein a high retention is achieved by the wedge-shaped reinforced end portion 8.

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 concerne un implant disque (1) à utiliser dans un os maxillaire, comprenant: un disque de base (2) structuré, une première section de disque (6), à laquelle se raccorde sans épaulement une deuxième section de disque (7), présentant une forme de base géométrique approximativement ronde, et la deuxième section de disque (7) se raccordant à la première section de disque (6) étant formée de manière approximativement rectangulaire, et le disque de base (2) présentant sur son côté supérieur une tige (3) qui est fermement reliée par des nervures (4) au disque de base (2) et disposée orthogonalement au disque de base (2) et qui est positionnée en dehors du centre de gravité (12) du disque de base (2). L'invention est caractérisée en ce que la première section de disque (6) dans le sens d'insertion (13) est formée par des segments de cercle (20; 20a) et en ce que la section de disque (7) approximativement rectangulaire présente des côtés longitudinaux (9; 10) de forme concave auxquels se raccorde chaque fois sans épaulement un des segments de cercle (20; 20a), le côté frontal (11) de la deuxième section de disque (7) situé dans le sens opposé au sens d'insertion (13) étant pourvu d'un étranglement (18).
PCT/DE2010/000402 2009-07-07 2010-04-06 Implant disque WO2011003373A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE200920009141 DE202009009141U1 (de) 2009-07-07 2009-07-07 Retentionssicherung
DE202009009142.2 2009-07-07
DE202009009141.4 2009-07-07
DE200920009142 DE202009009142U1 (de) 2009-07-07 2009-07-07 Diskimplantat

Publications (1)

Publication Number Publication Date
WO2011003373A1 true WO2011003373A1 (fr) 2011-01-13

Family

ID=42561048

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2010/000402 WO2011003373A1 (fr) 2009-07-07 2010-04-06 Implant disque

Country Status (1)

Country Link
WO (1) WO2011003373A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016009150A1 (de) 2016-07-27 2018-02-01 Johannes Scherer Dentalschraubimplantat mit axial von Knochen durchsetzbarem Ansatz

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2302715A1 (fr) * 1975-03-06 1976-10-01 Clunet Coste Bruno Implant dentaire
DE3018255A1 (de) * 1979-05-17 1980-11-27 Robert Streel Implantat mit variabler geometrie
US20010038996A1 (en) * 1999-11-10 2001-11-08 Stefan Ihde Jaw implant
FR2863477A1 (fr) * 2003-12-10 2005-06-17 Gerard Scortecci Implant dentaire
US20050272007A1 (en) * 1998-11-11 2005-12-08 Stefan Ihde Dental implant and method of insertion

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2302715A1 (fr) * 1975-03-06 1976-10-01 Clunet Coste Bruno Implant dentaire
DE3018255A1 (de) * 1979-05-17 1980-11-27 Robert Streel Implantat mit variabler geometrie
US20050272007A1 (en) * 1998-11-11 2005-12-08 Stefan Ihde Dental implant and method of insertion
US20010038996A1 (en) * 1999-11-10 2001-11-08 Stefan Ihde Jaw implant
FR2863477A1 (fr) * 2003-12-10 2005-06-17 Gerard Scortecci Implant dentaire

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016009150A1 (de) 2016-07-27 2018-02-01 Johannes Scherer Dentalschraubimplantat mit axial von Knochen durchsetzbarem Ansatz

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