WO2006035011A1 - Implant dentaire intra-osseux en ceramique - Google Patents

Implant dentaire intra-osseux en ceramique Download PDF

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Publication number
WO2006035011A1
WO2006035011A1 PCT/EP2005/054812 EP2005054812W WO2006035011A1 WO 2006035011 A1 WO2006035011 A1 WO 2006035011A1 EP 2005054812 W EP2005054812 W EP 2005054812W WO 2006035011 A1 WO2006035011 A1 WO 2006035011A1
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WO
WIPO (PCT)
Prior art keywords
implant
dental implant
implant according
post
implant body
Prior art date
Application number
PCT/EP2005/054812
Other languages
German (de)
English (en)
Inventor
Erhard Werner
Original Assignee
Heraeus Kulzer Gmbh
Erhard Werner
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 Heraeus Kulzer Gmbh, Erhard Werner filed Critical Heraeus Kulzer Gmbh
Priority to EP05789518A priority Critical patent/EP1827288A1/fr
Publication of WO2006035011A1 publication Critical patent/WO2006035011A1/fr

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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
    • A61C8/0018—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools characterised by the shape
    • A61C8/0022—Self-screwing
    • A61C8/0025—Self-screwing with multiple threads
    • 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
    • A61C8/0012—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools characterised by the material or composition, e.g. ceramics, surface layer, metal alloy
    • 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
    • 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
    • A61C8/0066—Connecting devices for joining an upper structure with an implant member, e.g. spacers with positioning means
    • 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
    • A61C8/0069—Connecting devices for joining an upper structure with an implant member, e.g. spacers tapered or conical connection
    • 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
    • A61C8/0018—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools characterised by the shape
    • A61C8/0037—Details of the shape
    • A61C2008/0046—Textured surface, e.g. roughness, microstructure
    • 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
    • A61C8/006—Connecting devices for joining an upper structure with an implant member, e.g. spacers with polygonal positional means, e.g. hexagonal or octagonal
    • 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
    • A61C8/0068—Connecting devices for joining an upper structure with an implant member, e.g. spacers with an additional screw

Definitions

  • the present invention relates to an endosseous dental implant comprising an implant body adapted for insertion into a jawbone, sometimes called an implant root, and an implant post, sometimes called an implant abutment or abutment, having a terminal portion for connection to a prosthetic abutment.
  • a dental implant is an artificial tooth root that is made of a biocompatible material.
  • An endosseous dental implant is intended to be implanted directly into the jawbone, whereby the artificial tooth root grows with the jawbone. After healing of the dental implant in the jawbone prosthetic structure with the Anschlußab ⁇ section of the implant post is connected.
  • a prosthetic structure which is also called superstructure in professional circles, in principle every crown, bridge, telescope or bridge comes into question.
  • Titanium has a relatively high tissue compatibility, which is also called “biocompatibility”.
  • titanium has suitable mechanical properties, so that small unbreakable implant body can be produced.
  • zirconium ceramic implants are used.
  • Such a zirconium dental implant is also biocompatible and heals well into the jawbone.
  • zirconium dental implants have the advantage over the titanium tooth implants that their color appearance approaches the natural tooth color, which is often desired for aesthetic reasons.
  • the prosthetic structure obscures a large part of the dental implant, it can not be ruled out that parts of the implant remain visible even in the final state, for example due to inadequate coverage of the implant by the gum.
  • Ceramic implants in particular zirconium implants, however, are only one piece available, which is disadvantageous to handle.
  • root canal posts have played a central role for decades. This is essentially based on the assumption that there is an increasing embrittlement of the tooth after a root canal treatment, which makes it necessary to strengthen it by inserting a root canal pin.
  • the root canal pin is for this purpose in a hole in - -
  • the root of the destroyed tooth is used and serves to stabilize it.
  • the pins are made of metal, fiber-reinforced mixtures (composites) or Zirkonoxidkeramiken (Biopost reconstructite) her ⁇ are to be regarded as dentures and not as implants.
  • Dental implants differ from the root canal pins in that they are implanted directly into the jaw for replacement of individual teeth or for holding an artificial dentition.
  • An anchoring part grows into the jawbone and the gum surrounds the guide part or section of the dental implant.
  • the dental implant can consist of a single structural part, for example of titanium or aluminum oxide, or, in the case of a two-part embodiment, it can be made of a leadthrough part or section separated from the anchoring part.
  • metal dental implants for a fixed dentures known. These consist mostly of a titanium alloy (titanium grade 4), which are made of a cylindri ⁇ or conical base body having at its outer diameter suitable for ingrowth in the jaw molding, such. a roughened surface.
  • the head of the implant has a central bore, which is designed as a threaded hole and serves to Auf ⁇ acceptance of a threaded bolt on which the abutment is attached.
  • a device connected to the attachment such as e.g. a square or elliptical insertion, the abutment is secured against twisting.
  • the abutment is supported on the implant in one plane. In these embodiments, however, an adaptation of the implants to the natural bone course is not provided.
  • the spacer sleeve serves as an implant head. It is formed closed down, screwed by means of thread in the main body of the implant and has a central threaded bore for receiving the threaded bolt on which the tooth crown is attached.
  • a centering collar at the lower end of the spacer sleeve is provided with verti ⁇ cal projections which engage in corresponding recesses of the body and serve to align the tooth crown and securing the same against rotation.
  • a decisive disadvantage of the listed metal implants lies in the unsatisfactory biocompatibility of the metals used.
  • One solution to this problem is, for example, the coating of implants made of titanium or aluminum oxide with hydroxyapatite or particles of titanium, which, however, is very complicated and expensive.
  • Two-piece endosseous dental implants from BICON are also known.
  • a ceramic head is fitted in a press fit onto a metallic implant root, usually coated with hydroxyapatite or specifically pretreated.
  • this system does not allow an exactly predictable alignment of the implant post, which is often called abutment in professional circles.
  • one-piece, ceramic zirconia monoblock implants e.g. after Dr. Ulrich VoIz, known.
  • these one-piece implants have the disadvantage that, on the one hand, they do not allow any concealed healing phases, since they have to heal openly over a period of four to five months, have to be sutured in the mouth and, on the other hand, offer unsatisfactory correction options if implantation is not exact.
  • said monoblock implants are apical, i. on the side facing the jawbone, a relatively sharp-edged plane surface, whereby an internal sinus lift is not possible, or considerably more difficult.
  • sinus lift refers to a surgical technique for creating an implant site in the upper jaw. Since the upper jaw frequently has a poorer bone quality compared to the lower jaw, a sufficient implant support in the upper jaw is created by incorporating either one's own bone or a bone substitute material.
  • an endosseous dental implant in which at least the implant body is made of a ceramic material, wherein the implant is formed at least in two parts, so that the implant body and implant posts are separate parts.
  • the implant body has a frequently called apical end, with which it is inserted or screwed into the jaw.
  • the two-part design allows the treating dentist to edit the post or the attached prosthetic structure, such as a crown, outside of the mouth. - -
  • Both implant body and post are made of ceramic material with particular preference.
  • the implant body has a receptacle and the implant post has a fastening section, wherein the receptacle and attachment section are designed to be complementary, so that the implant post can be connected to the implant body on the receptacle and the fastening section.
  • the endosseous dental implant consists of a high-performance ceramic, in particular of zirconium oxide (ZrO 2 ).
  • zirconium oxide which is considered to be susceptible to breakage, is advantageously suitable for the production of two-part implants, although these are subject to considerable difficulties in terms of their small size and the associated small wall thicknesses on the stability of the invention and the parts themselves have suggested.
  • the use of the zirconium oxide as an implant material not only has the advantage that the appearance of translucent tooth-colored restoration is supported by the favorable optical properties and the white color of the material, but also the high strength of the material for its use in the production an endosseous two-piece implant speaks.
  • Another decisive advantage lies in the high biocompatibility of the zirconium oxide. Due to its roughness and porosity, the material used ensures a very good adhesion and a very good hold in the jawbone. A complex coating of the implant is therefore not necessary, but should not be excluded.
  • a zirconium dioxide suitable for implant use for partial stabilization contains an addition of about 1% to 20%, preferably about 2.5% to 10%, particularly preferably about 5% Y 2 O 3 and preferably has the following overall composition : 80-99% ZrO 2 and 20-1% Y 2 O 3 , more preferably about 95% ZrO 2 and about 5% Y 2 O 3 , wherein vorzugswei ⁇ se, the sum of the ingredients is substantially 100%.
  • the use of zirconium dioxide is possible, which is partially stabilized with Al 2 O 3 .
  • the ZrO 2 has an addition of about 1 to 20%, preferably about 2.5 to 10%, particularly preferably about 5% Al 2 O 3 .
  • zirconium dioxide Particularly suitable as zirconium dioxide are the high-performance ceramics, which are stabilized with, for example, yttrium, a density of about 6.07 g / cm 3 , an open porosity of about 0%, a grain size of about 0.5 ⁇ m, a Wickers hardness from about 1,300-1,500, a compressive strength - -
  • the endosseous dental implant according to the invention is preferably produced by sintering or alternatively by an injection molding process.
  • the dental implant consists of the implant body and the implant post, which serves as an intermediate member for holding the dental crown, wherein the components of the dental implant can preferably be screwed or adhesively bonded with the aid of a biocompatible adhesive.
  • the implant body and / or the implant post are preferably designed to be substantially rotationally symmetrical.
  • the receiving and fastening section are designed such that a relative rotation of the implant post with respect to the implant body around the longitudinal axis of the implant body is prevented when the implant body and the implant post are connected to one another. This rotation lock ensures that the implant post and the associated prosthetic structure can not rotate relative to the implant body, regardless of the type of attachment.
  • receiving and fixing portion are formed such that they provide a formschlüssi ⁇ ge connection between the implant body and post. In this way, a relative displacement of the implant post and thus the prosthetic structure, such. a crown, effectively prevented from the implant body.
  • connection between receiving and fastening portion is a combination of pin and recess.
  • the pin is then provided either on the implant body or on the implant post, while a corresponding recess corresponding thereto is provided on the other part. It has been shown that the pin is preferably provided on the implant post. As a result, the implant body can be made smaller and it is possible to let the implant body heal closed.
  • pin and recess each have a non-circular cross-section.
  • the rotation can be provided.
  • the pin may be formed as an external polygon and the recess as an internal polygon.
  • the feltflä ⁇ surface of the pin and the inner surface of the recess are formed rosette-shaped.
  • ceramic material eg zirconia
  • the rosette shape is characterized in that portions of the rosette, i. the outer surface of the pin or the inner surface of the recess, are more curved than a rosette einhül ⁇ lender radius.
  • the rosette shape which can also be referred to as a flower-shaped or wave-shaped geometry, is of great advantage for securing against rotation of the prosthetic structure.
  • a construction system with integrated security against twisting is obtained, which has improved mechanical stability in both buccal and lingual directions.
  • the outer surface of the pin and the inner surface of the recess are designed such that they are at least partially rotationally symmetrical with a three to eighteen-fold, preferably six to twelve, rotational symmetry.
  • fixed angular steps e.g. from 30 ° to 60 °, reached for the abutment positions, which has for the An ⁇ der a considerable relief for the surgical and prosthetic phase result.
  • the pin and recess have the highest possible rotational symmetry.
  • the production effort increases with a higher rotational symmetry. In practice, a six-, eight- or twelve-fold rotational symmetry has proven itself.
  • the recording and the mounting portion in such a way that the ceramic does not break at this point. It has proven to be advantageous to provide the wall thickness of the implant root in the region of the anti-rotation lock between about 0.3 mm and about 3.6 mm, particularly preferably between about 1.3 and about 2.6 mm, which is a stable shape and permanent grip guaranteed.
  • the wall thickness will be about 0.3 to 0.4 mm, which is sufficient for good stability. It has been found that the implant according to the invention has sufficient stability for wall thicknesses between approximately 0.3 mm and approximately 2.5 mm. - -
  • the present invention enables better prosthetic treatment options due to the possibility of abutment replacement and allows correction in particular by the use of angled abutments, if the implant has not been implanted exactly in the bone.
  • multi-part ceramic implant is that, in contrast to eintei ⁇ single implants, which must always heal open, a hidden healing phase is possible.
  • implant post can be manipulated outside of the mouth, which provides the patient with an extraordinary comfort improvement during the treatments.
  • a gingivaformer can be placed on the implant body of the implant according to the invention if it requires the aesthetic situation, so that the gum does not collapse, the natural aesthetics can be maintained and / or to shape the gums until the beginning of the later prosthetic work.
  • the implant body can also be closed and sutured with a healing cap and hid in a concealed manner.
  • the root can then be treated with the implant body and the prosthetic abutment, such as, for example, the implant. a crown, be provided.
  • the outer surface of the pin tapers at least at a portion in the direction of the pin tip and the inner surfaces of the recess widen conically, at least at a portion.
  • the pointed zulau ⁇ fende portion of the outer surface of the pin and the conically widening portion of the inner surface of the recess is formed such that they form-locking engage with implanted on the implant body implant post.
  • This conicity ensures a bacteria-tight closure between the implant body on the one hand and the implant post on the other.
  • the connection between the implant body and the implant post becomes more durable. There is less play between the two parts and, last but not least, for the dentist, the connection of the implant post and the implant body is simplified, since the conical design of the surfaces facilitates the threading of the spigot in the corresponding recess.
  • the conicity angle of the tapered pin outer surface and the conically widening recess inner surface is between 0.5 ° and 15 °, preferably between 1 ° and 5 ° and more preferably between 1, 5 ° and 2 ".
  • the implant body has an axial bore and the implant post has a through hole.
  • the axial bore of the implant body and the through hole of the implant post serve to fix the implant post in the implant body.
  • axial bore and passage bore are arranged such that the implant post can be connected by means of a screw engaging in the axial bore through the through-bore, wherein the axial bore is preferably designed as a threaded bore.
  • the axial bore does not necessarily have to be a threaded bore. Instead, the screw used could also be selected such that it intersects the ent speaking thread itself when engaging in the axial bore.
  • the through hole in the implant post is formed such that the screw is retractable in the implant post.
  • a sleeve inserted into the axial bore preferably a sleeve with an internal thread
  • the sleeve is particularly preferably made of metal.
  • a metallic sleeve is therefore introduced into the axial bore in this embodiment, so that, although both implant body and implant post are made of biocompatible ceramic, the connection is via a metallic screw , which engages with the threads in the metallic sleeve, takes place.
  • This metal sleeve preferably a titanium sleeve, can be inserted and fixed in the axial bore, for example, by being pressed in, by thermal pressing or by gluing.
  • the post is in each case plugged into the oral cavity of the patient and screwed by means of a fastening screw, before the prosthetic structure, which covers the fastening screw, is fastened to the post.
  • the implant post has an engaging in the axial bore adhesive pin, which is intended to be bonded in the axial bore with an adhesive, and the through hole is for the derivation of formed excess adhesive.
  • the implant post is glued to the implant body to hold a prosthetic abutment with biocompatible adhesive.
  • the through bore of the ventilation or the escape of the adhesive during gluing serves to prevent undesired bite increase and the escape of the adhesive from the glue joint into the surrounding tissue.
  • the size of the glue joint between the implant body and the implant post is 5 ⁇ m to 40 ⁇ m, more preferably 10 ⁇ m to 20 ⁇ m. This allows a precise Gebißsent be achieved. - -
  • the dental implant according to the invention allows a gentle and precise implant preparation by means of bone condenser insertion, standardized implant drill or preferably with the help of bone thread cutters.
  • the endosseous implant can be used at all sites in the jaw and can be used for all indications, both as a late implant and as an immediate implant. It also has the advantage that SIS splints (in the case of complicated augmentation procedures in the upper jaw side tooth area) sinus implant stabilizing rails) can be used.
  • particularly suitable diameters are about 2.5 mm to about 9 mm, preferably 3.5 mm, 4.5 mm, 5.5 mm and 7 mm and lengths of about 8 mm to about 22 mm, more preferably lengths of 1 1, 5 mm, 13 mm, 15 mm and 18 mm proved.
  • a combination of several implants is provided as a package, wherein the implants have different dimensions with respect to length and diameter in order to be implanted at different locations in the jaw.
  • the implant body is preferably at its apical end, i. the end facing away from the recess, which is inserted into the jawbone, has a rounded design. This allows the implementation of an internal sinus lift without risk of injury Schneider's membrane.
  • the implant root is conical at its apical end and is also preferably rounded at this end. It further preferably has a self-cutting, in particular rounded, compression thread.
  • the compression thread has an overall length along the axis of symmetry of the root of about 6 mm to about 10 mm, more preferably about 9 mm, and preferably has transverse to the compression thread and particularly preferably oblique to the longitudinal axis milled recesses and / or depressions Removal of bone or drill chips.
  • a further preferred embodiment of the invention comprises an implant body which, at its outer periphery on the side facing away from the apical end, between the end and the compression thread has a healing section adjoining the compression thread and having a structured surface.
  • the healing section has in particular transversely to the longitudinal axis of the implant body around the circumference circumferential, in particular regular elevations and depressions or grooves.
  • the amplitude, i. the height difference zwi ⁇ surveys and depressions is less than that of the compression thread, in particular at least 30% and preferably at least 50% lower. Furthermore, the repeating distance of the circumferential elevations and depressions is preferably also smaller than that of the threads of the compression thread, in particular at least 30% and preferably at least 50% lower.
  • the distance between the recesses is about 0.1 mm to about 0.3 mm, more preferably about 0.2 mm.
  • the amplitude of the elevations and depressions is preferably about 0.1 mm to about 0.3 mm, particularly preferably about 0.2 mm.
  • the healing section promotes the healing of the implant and prevents traumatization of the bone and the emergence of bone fractures.
  • the elevations and depressions are further preferably designed as a fine thread arranged following the compression thread.
  • the healing section or the fine thread along the axis of symmetry of the root has a length of about 2 mm to 6 mm, more preferably about 4 mm.
  • the elevations and depressions are formed as a plurality of annular structures.
  • the implant body has at its end facing away from the apical end of a smooth, preferably polished end portion and is particularly beveled at this end.
  • the termination portion comprises a polished ring portion and preferably has an annular chamfer.
  • the ring portion has a width in the direction of the longitudinal axis of the implant body of about 0.5 mm to about 1 mm, more preferably of about 0.7 mm.
  • the chamfer or chamfer has a width in the direction of the longitudinal axis of the implant body of from about 0.1 to about 0.5 mm, particularly preferably about 0.3 mm.
  • the angle between the beveled surface and the longitudinal axis of the implant body is about 25 ° to about 65 °, more preferably about 45 °.
  • the polished annular portion and bevel minimize the risk of injury to the gingiva and gum during the healing phase.
  • the healing section or the fine thread adjoins the first thread immediately and / or the polished annular section adjoins directly the healing section or the fine thread.
  • FIG. 2 shows a sectional view along the longitudinal axis of an implant post according to the first embodiment of the invention
  • FIG. 3 shows a longitudinal sectional view and a plan view of the apical end of an implant body according to a second embodiment of the invention
  • FIG. 4 two views of the implant post according to the second embodiment of the invention.
  • FIG. 5 shows a sectional view of the implant consisting of implant body and implant post in the screwed state according to the second embodiment
  • FIG. 6 shows two views of the connecting screw according to the second embodiment of FIG
  • Figure 7 is a plan view of the rosette-shaped configuration of Verfitschutzelements according to an alternative embodiment.
  • FIGS. 1 and 2 show a first embodiment of the dental implant according to the invention.
  • 1 shows a sectional view, two plan views and a perspective view of an implant body 1.
  • FIG. 2 shows the implant post 2 corresponding thereto in a sectional view.
  • the implant post 2 is adhesively bonded in the implant body by means of a biocompatible adhesive.
  • the implant body 1 shown in FIG. 1 has an internal geometry or receptacle 8 which is glued over the implant post 2 shown in FIG. 2 for holding a prosthetic abutment (not shown in a rotationally secured manner).
  • the implant post 2 has, as can be seen from FIG. 2, a continuous bore 3 extending in the axial direction for air or adhesive leakage and a connecting pin or conical pin 4 with an anti-twist device or anti-rotation device 5 which bridges the connection Implant body 1 and implant post 2 allows and gives the implant overall er ⁇ increased stability.
  • the implant post 2 has a circumferential neck shoulder 16, to which - -
  • the lower edge of the prosthetic abutment e.g. a dental crown, connects (not shown), and has a conical, tapered to the prosthetic structure geometry.
  • the pin in this embodiment consists of two sections.
  • the anti-rotation device 5 is to be mentioned here, which together with the corresponding receptacle on the implant body serves to connect the implant body and post in such a way that relative rotation of the implant post relative to the implant body is prevented when the implant body and implant post are connected to one another are.
  • the outer surface of the anti-twist device 5 has a conicity.
  • the adhesive portion 4 can be seen. This has a substantially circular cross section and a conicity which is greater than the conicity of the rotation.
  • the friction surface is provided with an adhesive prior to bonding of implant body 1 and implant post 2. During insertion of the post into the body, excess adhesive is displaced and can escape through the central bore through the implant body 2.
  • the implant body 1 of the dental implant shown in Figure 1 has a substantially cylindrical geometry, has a first end 6 and a second end 7 and is with the first end 6, the so-called apical end, first inserted into the jaw, the second end 7 the apical end 6 opposite.
  • the implant body 1 has at its second end 7 a receptacle 8, which is complementary to the conical pin 4 and the rotation 5 of the implant post 2 and forms a receptacle for these elements for attachment of the implant post 2.
  • the receptacle 8, the pin 4 and the anti-rotation device 5 are designed as pluggable, initially releasable and complementary to each other trained Verfstoffieri.
  • the anti-rotation device 5 may be provided as an outer polygon and the receptacle 8 as a polygon socket formed complementary thereto.
  • the pin 4 on its outer circumference a wave-shaped corrugation 10 (see Figure 4) and the receptacle 8 at its periphery a complementary thereto formed wave-shaped corrugation 11 (see Figure 7).
  • an embodiment is possible, which is characterized in that the polygonal socket or the wavy corrugation, a three to clergyzehnITA, in particular six to twelve - -
  • the embodiment described above effectively prevents the connection between implant body 1 on the one hand and implant post 2 on the other hand from breaking out.
  • the implant body 1 is conical towards its apical end 6 and is rounded off at this end. It has on its circumference a self-tapping, rounded compression thread 12, which has apical, oblique to the longitudinal axis milled cuts 13 for the Ab ⁇ transport of bone or drill chips, with which the implant is screwed into a pre-drilled hole in the jaw.
  • This embodiment allows good implantability and high primary stability.
  • the implant body 1 following the compression thread 12, has a healing section in the form of a fine thread 14, which on the one hand promotes the healing of the implant and, on the other hand, also prevents a cervical bone invasion around the implant neck after implantation.
  • the implant body 1 has a polished end portion at its second end 7.
  • the end section comprises an annular section 9 and preferably has a beveled, likewise polished annular bevel or bevel 17.
  • the annular chamfer 17 minimizes the risk of injury during the healing phase. The polishing of the end portion prevents the attachment of microorganisms to this portion.
  • the implant post 2 is shown in Figure 2 and serves as a holder of a prosthetic structure (not shown).
  • the implant post 2 has a central vent bore or passage bore 3 for venting or adhesive leakage.
  • the bore allows the adhesive to escape during gluing and prevents a bite increase or the escape of the adhesive from the glue joint into the surrounding tissue.
  • FIGS. 3 to 6 show a second embodiment of the dental implant according to the invention, in which the implant post is screwed to the implant body.
  • an endosseous ceramic implant made of zirconium dioxide, which, subject to the differences described below, essentially has the features of be ⁇ described in the embodiment of implant 1, but over an emanating from the implant body 1 mecanical geometry for rotation with a subsequent axial bore 18 to Recording a - -
  • Fixing screw 15 made of titanium, gold or other material has, so that the implant post 2 can be connected by means of a screwed through the bore in the internal thread 18 and sunk in the implant post screw.
  • This fastening screw 15 is sunk in the embodiment shown in Figure 6 in the implant post 2 with respect to the upper edge thereof.
  • FIG. 7 an embodiment is shown in Figure 7 with a rosette-shaped pin.
  • the rosette-shaped receptacle has the advantage that the implant has no sharp corners that could splinter and / or break in use.

Abstract

La présente invention concerne un implant dentaire intra-osseux présentant un corps (1), conçu pour être inséré dans une mâchoire, et un pilier (2), pourvu d'une section de raccordement pour le raccordement d'une structure prothétique, au moins le corps (1) de l'implant étant constitué d'un matériau céramique. L'objectif de cette invention est de fournir un implant dentaire intra-osseux en céramique, pouvant être fabriqué à un coût acceptable, dont l'implantation et l'adaptation sont agréables pour le patient, garantissant une meilleure guérison, facile à adapter pour le médecin et possédant une grande stabilité. A cet effet, l'implant est conçu au moins en deux parties, de sorte que le corps (1) et le pilier (2) de l'implant sont des pièces séparées.
PCT/EP2005/054812 2004-09-27 2005-09-26 Implant dentaire intra-osseux en ceramique WO2006035011A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP05789518A EP1827288A1 (fr) 2004-09-27 2005-09-26 Implant dentaire intra-osseux en ceramique

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE102004047112.6 2004-09-27
DE102004047112 2004-09-27
DE102005000863 2005-01-05
DE102005000863.1 2005-01-05
DE102005006979.7 2005-02-15
DE102005006979A DE102005006979A1 (de) 2004-09-27 2005-02-15 Keramisches enossales Zahnimplantat

Publications (1)

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WO2006035011A1 true WO2006035011A1 (fr) 2006-04-06

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EP (1) EP1827288A1 (fr)
DE (1) DE102005006979A1 (fr)
WO (1) WO2006035011A1 (fr)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1982671A1 (fr) * 2007-04-19 2008-10-22 Straumann Holding AG Implant dentaire doté d'une surface réalisée en matériau céramique
EP2039320A1 (fr) 2007-09-20 2009-03-25 Gebr. Brasseler GmbH & Co. KG Implant dentaire doté d'un élément d'insertion
DE102007046879A1 (de) * 2007-09-28 2009-04-09 Microceram Gmbh Dentalimplantat
WO2010025839A1 (fr) 2008-09-05 2010-03-11 Ludwig Riedl Implant maxillaire
DE102008055645A1 (de) * 2008-09-27 2010-04-08 Jelitte, Gerd, Dr. Keramisches Implantat
WO2011069671A3 (fr) * 2009-12-10 2011-08-11 Cera M Gmbh Implant dentaire
FR2969484A3 (fr) * 2010-12-24 2012-06-29 Zda Zirconia Dev & Applic Systeme d'implantation intra-osseux en ceramique
WO2012097955A1 (fr) * 2011-01-18 2012-07-26 Zda Zirconia Developpement & Applications Vis de fixation sécable
ITTO20120104A1 (it) * 2012-02-08 2013-08-09 Twocare S R L Impianto dentale od osseo
EP2656813A1 (fr) * 2012-04-26 2013-10-30 Chun-Leon Chen Implant dentaire réparable, monobloc, à base de dioxyde de zirconium
WO2014091346A3 (fr) * 2012-12-10 2014-10-30 Ribaxx Ag Implant céramique en deux parties
US9039671B2 (en) 2010-07-30 2015-05-26 Daio Paper Corporation Absorbent pad and absorbent article
US9149347B2 (en) 2009-07-27 2015-10-06 Straumann Holding Ag Abutment for a dental implant
RU2622377C2 (ru) * 2011-11-07 2017-06-14 Биомед Ист. Винтовой имплантат для челюстной кости с корональной компрессионной резьбой и апикальной саморезной резьбой
US10595967B2 (en) 2007-04-19 2020-03-24 Straumann Holding Ag Process for providing a topography to the surface of a dental implant
EP3777754B1 (fr) * 2015-01-07 2023-06-07 Bicon, LLC Piliers intégrés d'implant dentaire

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2143398B1 (fr) 2008-07-12 2012-12-05 Gerd Axel Dr. Walther Implant dentaire avec élément intermédiaire élastique
EP2361586A1 (fr) 2010-02-19 2011-08-31 Gerd Axel Dr. Walther Implant destiné à l'implantation dans un os, notamment des os de la mâchoire, ainsi que son procédé de fabrication
AT14616U1 (de) * 2012-12-10 2016-02-15 Ribaxx Ag Zweiteiliges Keramikimplantat
FR3051659A1 (fr) * 2016-05-24 2017-12-01 Mohamed Semmar Implant dentaire offre un bon ancrage primaire et favorise une adaptation a toute densites osseuses
EP3747394A1 (fr) 2019-06-04 2020-12-09 VITA-ZAHNFABRIK H. Rauter GmbH & Co. KG Implant dentaire à différentes rugosité de la surface

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US6343930B1 (en) * 1998-10-26 2002-02-05 Implant Innovations, Inc. Ceramic dental abutments with a metallic core
US20040142304A1 (en) * 2001-12-03 2004-07-22 Richard Cottrell Modified dental implant fixture

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US4468200A (en) * 1982-11-12 1984-08-28 Feldmuhle Aktiengesellschaft Helical mandibular implant
US6343930B1 (en) * 1998-10-26 2002-02-05 Implant Innovations, Inc. Ceramic dental abutments with a metallic core
EP1021996A1 (fr) * 1999-01-25 2000-07-26 Hofmann S.a.s. di Roberto Hofmann & C. Dispositif pour un implant dentaire intra-osseux
US20040142304A1 (en) * 2001-12-03 2004-07-22 Richard Cottrell Modified dental implant fixture

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1982671B1 (fr) 2007-04-19 2016-03-09 Straumann Holding AG Implant dentaire doté d'une surface réalisée en matériau céramique
US10595967B2 (en) 2007-04-19 2020-03-24 Straumann Holding Ag Process for providing a topography to the surface of a dental implant
EP1982671A1 (fr) * 2007-04-19 2008-10-22 Straumann Holding AG Implant dentaire doté d'une surface réalisée en matériau céramique
US8408906B2 (en) 2007-04-19 2013-04-02 Straumann Holding Ag Dental implant having a surface made of a ceramic material
EP2039320A1 (fr) 2007-09-20 2009-03-25 Gebr. Brasseler GmbH & Co. KG Implant dentaire doté d'un élément d'insertion
DE102007046879B4 (de) * 2007-09-28 2012-07-05 Microceram Gmbh Dentalimplantat
DE102007046879A1 (de) * 2007-09-28 2009-04-09 Microceram Gmbh Dentalimplantat
WO2010025839A1 (fr) 2008-09-05 2010-03-11 Ludwig Riedl Implant maxillaire
DE102008055645A1 (de) * 2008-09-27 2010-04-08 Jelitte, Gerd, Dr. Keramisches Implantat
US9149347B2 (en) 2009-07-27 2015-10-06 Straumann Holding Ag Abutment for a dental implant
WO2011069671A3 (fr) * 2009-12-10 2011-08-11 Cera M Gmbh Implant dentaire
US9277974B2 (en) 2009-12-10 2016-03-08 Cera M Gmbh Dental implant
US9039671B2 (en) 2010-07-30 2015-05-26 Daio Paper Corporation Absorbent pad and absorbent article
FR2969484A3 (fr) * 2010-12-24 2012-06-29 Zda Zirconia Dev & Applic Systeme d'implantation intra-osseux en ceramique
WO2012097955A1 (fr) * 2011-01-18 2012-07-26 Zda Zirconia Developpement & Applications Vis de fixation sécable
RU2622377C2 (ru) * 2011-11-07 2017-06-14 Биомед Ист. Винтовой имплантат для челюстной кости с корональной компрессионной резьбой и апикальной саморезной резьбой
ITTO20120104A1 (it) * 2012-02-08 2013-08-09 Twocare S R L Impianto dentale od osseo
WO2013118101A1 (fr) 2012-02-08 2013-08-15 Twocare S.R.L. Implant dentaire ou osseux
EP2656813A1 (fr) * 2012-04-26 2013-10-30 Chun-Leon Chen Implant dentaire réparable, monobloc, à base de dioxyde de zirconium
DE212013000248U1 (de) 2012-12-10 2015-08-12 Ribaxx Ag Zweiteiliges Keramikimplantat
WO2014091346A3 (fr) * 2012-12-10 2014-10-30 Ribaxx Ag Implant céramique en deux parties
EP3777754B1 (fr) * 2015-01-07 2023-06-07 Bicon, LLC Piliers intégrés d'implant dentaire

Also Published As

Publication number Publication date
DE102005006979A1 (de) 2006-04-20
EP1827288A1 (fr) 2007-09-05

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