EP1581142A2 - Abutment für ein zahnimplantat, zahnimplantat mit einem solchen abutment sowie verfahren zum herstellen von zahnersatz unter verwendung des zahnimplantats - Google Patents
Abutment für ein zahnimplantat, zahnimplantat mit einem solchen abutment sowie verfahren zum herstellen von zahnersatz unter verwendung des zahnimplantatsInfo
- Publication number
- EP1581142A2 EP1581142A2 EP03795747A EP03795747A EP1581142A2 EP 1581142 A2 EP1581142 A2 EP 1581142A2 EP 03795747 A EP03795747 A EP 03795747A EP 03795747 A EP03795747 A EP 03795747A EP 1581142 A2 EP1581142 A2 EP 1581142A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- abutment
- cap
- shape
- tooth
- 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- Withdrawn
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
-
- 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
- A61C19/00—Dental auxiliary appliances
- A61C19/06—Implements for therapeutic treatment
- A61C19/063—Medicament applicators for teeth or gums, e.g. treatment with fluorides
-
- 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
Definitions
- the invention relates to an abutment according to the preamble of claim 1, to a dental implant according to the preamble to claim 33 and to a method according to the preamble of claim 34.
- the object of the invention is to show a dental implant with which the production of high quality dentures is possible with reduced workload.
- an abutment is designed according to claim 1.
- a dental implant is designed according to the preamble of claim 33.
- a method for producing a dental prosthesis is carried out according to claim 34.
- a special feature of an embodiment of the invention is, inter alia, that the respective abutment of the implant consisting of at least this abutment and a shaft is part of at least one abutment set, which is formed by a large number of different abutments, the shape of which is adapted to the shape of a natural tooth are.
- the abutment is selected from the abutment whose shape most closely corresponds to the tooth to be reconstructed with the implant.
- the further structure can then be provided directly on the selected abutment or, for example, after the abutment has been prepared.
- structure means, for example, a shell that has been applied to the abutment, for example a ceramic shell that has been fired on, which then forms the outer surface of a crown formed by the abutment.
- a dental prosthesis that are then fixed on the abutment that serves as the base.
- Such separately manufactured elements are, for example, bridge members, telescopes, bars or else separately manufactured shells or caps for crowns, etc.
- the abutments used are, for example, the same size shaped so that they can be prepared to adapt to the individual shape.
- the abutments are made according to the individual tooth shape, for example using axis models or else image-based or computer-aided methods with which the respective abutment is made individually in accordance with the shape of the tooth to be replaced or restored ,
- “Corresponding to the natural tooth shape” is to be understood to mean a shaping of the abutments of the respective abutment set based on the natural tooth shape. “Individual tooth shape” is to be understood to mean the actual shape of the tooth to be restored or the tooth crown to be restored, and in particular also to match the shape remaining, existing teeth of a patient.
- the abutments are therefore preferably designed in such a way that, starting from the abutment-implant composite surface (v) or the base of the abutment, which is shaped like a tooth, the abutment initially has a certain base height or step height (SH) has, in the area of which the outer surfaces of the abutment preferably extend diverging outward into the approximal space or into the labial-buccal-palatal-lingual soft tissue environment.
- SH base height
- a parallel or converging shape of this abutment area can be advantageous as a shape modification.
- This base part then goes by means of a sharp-edged or rounded, horizontally or obliquely, or chamfer-like step with different depth in the Actual, similar to a preparation stump, coronal to predominantly slightly converging, with predominantly planar, rounded in diameter, or slightly concave, or slightly convex body, which is designed according to the basic shape of the tooth to be replaced or a preparation model of the tooth concerned.
- the abutment body then merges into the coronal tip area or occlusal surface area via rounded edges or curves.
- the occlusal surface is provided with two, three, four or five bumps in accordance with the natural shape of the teeth, which are interlocked with their own concave or convex or straight shape by saddles or V-shaped incisions of different angular dimensions and with and without rounding off the transitions and edges.
- the premolar also has a humped shape, which starts from the base / step in a rounded tip towards the body.
- a premolar is characterized by the presence of a buccal and lingual-palatal cusp.
- premolars have two bumps that are preferably or, for example, of the same height for maxillary teeth, but can also be of different heights.
- the buccal cusp is usually higher than the lingual cusp.
- molar caps In contrast to the premolar caps, molar caps have four cusps in the upper jaw and up to five in the lower jaw. At the same time, maxillary molar abutments have a trapezoidal or rounded square cross-section at the level of the soft tissue. Mandibular molar abutments essentially have a rectangular profile, the transitions of the edges being very rounded.
- the mesio-palatal cusp can be the larger of all four and the disto-palatinal cusp can be completely absent (3-cusp variant).
- the disto-buccal cusp in the five cusp variant being the smaller one.
- the caps it is possible for the caps to have a round, square or strongly rounded cross-section, since additional firing measures, e.g. Ceramics that an individual shape of the teeth can be achieved very quickly.
- the caps are made, for example, of solid and / or high-strength material, e.g. Zirconium oxide or aluminum oxide or else made of sintered metals, one or the other material preferably being selected in accordance with the optical and load-physical requirements.
- solid and / or high-strength material e.g. Zirconium oxide or aluminum oxide or else made of sintered metals, one or the other material preferably being selected in accordance with the optical and load-physical requirements.
- This individual shape gives the dentist and / or the
- Dental technicians have the opportunity to treat implants or these abutments like natural teeth and can proceed in the same way as in the restoration of natural teeth in their known work process without much additional time.
- FIG. 1 shows a simplified representation of an implant according to the invention with an abutment designed as a preparable cap
- 2 shows the implant of FIG. 1 with a prepared cap and with a ceramic shell fired onto the cap
- 3 shows a representation similar to FIG. 2, but in a further possible embodiment
- 4 different possible step shapes of caps of the implant of FIG. 1 adapted to the natural tooth shape
- 5 is a simplified view of a top view of a cap according to the invention
- Fig. 10 shows a simplified representation of a cap for an anterior tooth in the labial
- FIG. 10 shows the cap of FIG. 10 in a side view
- 12 the cap corresponding to a premolar in a buccal / palatal or lingual view
- 13 shows the cap of FIG. 12 in a side view
- FIG. 14 shows a cap similar to a molar in buccal / palatal or lingual view; 15 the cap of FIG. 14 in a side view; from mesial and distal;
- Invention shows an implant according to the invention with a compensation cap; 18 shows a section through an upper jaw bone with an implant and with a cap with an axis compensation angle;
- FIG. 19 shows the cap of FIG. 18 in a simplified representation and in section, together with a similar cap without axial angle compensation;
- 20-21 show two further possible embodiments of an abutment designed as a cap;
- Fig. 22 in a simplified representation and in section a cap according to the invention.
- the cap 4 consists of a high-strength material which can nevertheless be prepared with the usual dental tools, for example zirconium oxide or aluminum oxide.
- the prepared cap 4 forms, for example, the base of a crown, i.e. the prepared cap 4 is e.g. a ceramic shell 5 which forms the outer surface of the crown is fired.
- the prepared cap 4 is e.g. a ceramic shell 5 which forms the outer surface of the crown is fired.
- the prepared cap 4 is also the possibility of using the prepared cap 4 as the basis for another element of a dental prosthesis, for example as the basis for a structure, such as for a bridge or a bridge member, for a web, for a telescope, etc.
- connection between the cap 4 and the implant 1 in the embodiment shown is preferably made exclusively by gluing or cementing. This ensures that through the pin 3 and through this pin receiving and adapted to the shape of the pin 3
- Recess 6 of the bond between the cap 4 and the implant 1 takes place over a large area and, moreover, this adhesive bond and its resilience is at least largely independent of the shape of the prepared cap 4 and of the degree of preparation of the cap 4.
- the implant 1 and the associated cap 4 are used, for example, in such a way that the implant 1 is first anchored in the patient's jaw by screwing in, in such a way that the pin 3 is accessible after the pin has healed.
- an impression is made of the patient's upper or lower jaw using the usual technique, and then, using this impression and the cap 4 removed with the impression, a denture, for example the crown, is made which corresponds to the shape of the tooth to be reconstructed , If necessary, the cap can be prepared in the dental laboratory and then the cap can be placed on the cap
- the dental prosthesis thus finished in a dental laboratory is then placed on the pin 3 of the healed shaft 2 and fixed there by the adhesive or cement.
- the cap 4 overlaps the coronal region of the implant and in particular also the conical pin 3 over a large area, so that a very stable bond is achieved.
- a special feature of the invention is that the caps 4 are made based on the natural tooth shape, and so on especially the workload, but also to a minimum when preparing.
- the respective cap 4 is formed on the outside on its root portion or shaft-facing side with a step 12 with a base, which, like the base, corresponds to the position d of FIG. H. curved several times, runs around the axis of the cap and can have a wide variety of shapes in accordance with positions a - c of FIG. 4, regardless of the other shape of the cap 4.
- the transition from step 12 to the lateral surface of FIG Cap 4 formed like a flute and rectangular in position b, while this transition 13 is designed as an inclined surface in position c.
- the step itself can also have different shapes, for example tapering inwards, annular, or tapering outwards, etc.
- the height of the respective step 12, designated LH in this figure, can vary for the caps 4.
- the step, as indicated at 12.1, can be rounded or, as indicated at 12.2, it can be designed to run obliquely and curved.
- This step depth ST is at least 0.1 to 0.2 mm, preferably 0.5 mm.
- the underside of the cap 4 or its base is designated 12.3.
- FIG. 5 again shows the general shape of the cap 4 in a top view of this cap.
- the cap 4 has, for example, on two mesio-distally offset sides, ie on two sides which are in the Sequence of use of the cap in the row of teeth, each with a recess or recess 14.
- the cap In front view, the cap has the shape shown in position b, i. H. it is parallel-walled or slightly curved on the two side flanks and is widespread from the tip to step 12.
- the cap 4 a At the tip 15, the cap 4 a can be flat or straight or, as indicated by broken lines, can be curved.
- the cap 4 a is particularly suitable for use in the area of the incisors and canines.
- the cap 4.2 has an oval or elongated design, with the shorter cross-sectional side in the mesio-distal direction.
- the cap 4.2 can in turn be provided with a recess 14 on each of the two opposite sides.
- FIG. 8 shows in positions a and b in side view, also in front view and in top view, a cap 4.3 which is adapted to the natural shape of a molar.
- the cap has four cusps that are offset from each other in mesio-distal and bucco-oral.
- the cross section increases from the top 15 of the cap to the step 12 or to the transition 12, and is slightly arched.
- the caps are still designed to be suitable for an associated shaft 2.
- the shaft 2 then has a different diameter for the incisors, canines, premolars and molars, the diameter varying between 3.0 and 12.0 mm.
- the diameter of the pin 3 also varies according to the diameter of the shaft 2 of the implant.
- the starting point at least for the shape of the caps that form a cap set is the natural tooth shape.
- the caps are reduced by a certain amount, which is, for example, in the order of magnitude between 0.1 and 2.5 mm, this amount of the usual material thickness of the shell of a single crown, a bridge member, a telescope, etc. not exceeds.
- this amount of the usual material thickness of the shell of a single crown, a bridge member, a telescope, etc. not exceeds.
- A1 diameter of the cap at the top or tip in a labial view
- A2 diameter of the cap at the beginning of the tubercle dentis in side view
- B diameter of the cap in the center of the cap for anterior teeth and premolars; for molars at the transition of the cusps into the cap body ⁇ body
- C diameter of the cap at the step or in the area of the base
- D diameter of the cap at the largest circumference in the area of the step or base
- EO height of the cap measured between the lowest point of the garland-shaped step and the top or tip of the cap from the labial or buccal, lingual and palatal view of anterior teeth and premolars;
- F height of the cap measured between the highest point of the garland step to the top of the cap;
- G1 cusp distance from buccal-palatal / lingual view in molars;
- G2 cusp distance from the mesial-distal view in premolars and molars;
- H1 depth of the saddle formed by the cusps on the top of the cap in premolars;
- E3 height of the cap measured between the step and mesio-buccal cusp
- E4 height measured between the step and the disto-buccal cusp
- E7 height of the cap measured between the step and the mesio-palatal / lingual
- E8 height of the cap measured between the step and the disto-palatal / lingual cusp
- E9 height measured between the step and the disto-buccal cusp
- E10 height measured between the step and the disto-palatal / lingual cusp
- H2 depth of the saddle in buccal view or palatinal / lingual view
- H3 depth of the saddle in side view from mesial and distally
- the values given in the tables below can vary by +/- 0.1 to 3.0 mm.
- the height of the step or the distance of the garland-shaped step from the garland-shaped composite surface of the implant shaft can be between 0.2 and 0.6 mm.
- FIG. 16 shows a simplified representation as a further possible embodiment of an implant 1 a with a pin-like abutment 4 a, which has a molded-on pin 16 which engages in a recess 17 of a shaft 2 a corresponding to the shaft 2.
- the respective cap 4 is not only provided in different shapes adapted to the natural tooth shape, but also only slightly different in size from the natural tooth and, if necessary, several sets of caps with different sizes are used for this.
- caps 4 there is also the possibility of adapting the caps 4 to the natural tooth shape, but with a size that is reduced compared to the natural tooth shape by an amount that is the material thickness that is at least necessary for a shell or other structure , significantly exceeds.
- These caps correspond, for example, to caps 4a-4h, but are only reduced in size similarly to caps 4a-4h. This reduced form means that preparation is usually not necessary.
- the caps can be used in the same way as described for the caps 4a-4h, but in such a way that the individual shape of the tooth to be reconstructed is realized by the burned-on shell or the structure, if necessary with increased wall thickness.
- the implant 1 is used in each case together with a cap 4 or 4.a or abutment which is prefabricated but is adapted to the natural tooth shape.
- cap 4 there is also the possibility of fitting the cap 4 in the same way, taking into account the further structure (e.g. fired ceramic shell, separately manufactured structure, etc.), i.e. to be adapted to the individual tooth shape, in a reduced shape using a wax model, using a CAD method using a camera or using a CT method or in another suitable manner.
- further structure e.g. fired ceramic shell, separately manufactured structure, etc.
- the lateral surface 9 of the compensating caps is designed asymmetrically to the longitudinal axis L in the manner described, so that despite the parallelism of the outer regions 9.1 with the axis GA, a sufficient material thickness for the respective compensating cap 8 is retained.
- the compensation caps 8 are, for example, individually manufactured, for example using the technique specified above for the individual production of the caps 4. There is also the possibility of using prefabricated caps for the compensation caps 8, which are also adapted to the natural tooth shape use, which are then available in different shapes and sizes, for example in a compensation cap set.
- the respective cap 8 is then prepared in such a way that the outer region 9.1 is parallel or slightly conical to the axis GA.
- the compensation caps are prepared, for example, in turn in a dental laboratory, in which the further structure to be anchored on the compensation caps is manufactured, or the compensation caps are prepared by the dentist on the patient, for example after being fixed on the healed shaft 2.
- FIG. 18 shows a simplified representation of a section through an upper jaw together with the implant anchored there, consisting of the shaft 2 and a cap 18 on which a crown 19 is provided.
- the cap 18, which consists for example of the same material as the caps 4 and 8, is used for axis angle compensation, i. H. the cap 18 is designed so that its cap axis KA forms an angle with the longitudinal axis L of the shaft, for example an angle of the order of up to approximately 15 to 20 °.
- This makes it possible to optimally anchor the shaft 2 in the maxillary bone 20 and still achieve the correct position for the crown 19 or the dental prosthesis formed by this crown, which is not possible with the cap 18.1 shown in position b in FIG.
- Materials are generally used for the shaft 2, for the caps 4, for the compensation caps 8 and for the caps 18 with axial angle compensation and for the further structure provided on the respective cap, with regard to their chemical composition, their mechanical strength and resilience and their biological compatibility are optimally selected.
- Suitable materials are, for example, aluminum oxide, zirconium oxide, sintered materials made of metal or ceramic, a wide variety of metals and metal alloys, such as Platinum-iridium, also fine or galvanic gold, burnable metal alloys.
- applied layers or shells can be produced, for example, by sputtering, sintering, molding, etc.
- the layer thickness of the caps 4 depends on the choice of material. In the case of caps 4 made of aluminum oxide, the layer thickness is, for example, in the range from 0.4 to 1.2 mm. In the case of caps 4 made of zirconium oxide, the layer cover is, for example, in the range between 0.2 and 0.8 mm.
- the layer 10 is covered by an easily removable surface protective layer 11, for example by a layer of calcium oxide or by a layer of an adhesive which can be removed using water or an acid.
- an easily removable surface protective layer 11 for example by a layer of calcium oxide or by a layer of an adhesive which can be removed using water or an acid.
- any protective layers are mainly on the outer surface of the base part, i. H. in the lower region of the respective cap and / or on the outer surface of the coronal part of the shaft 2 or 2a.
- the cap 4 or 8 which has not been pretreated, it is also possible to pretreat the surfaces to be connected to the shaft 2 only when the cap is connected, for example by, for the optimum adhesive bond Etching.
- the cap 4 or 8 consists, for example, of an etchable ceramic, at least on its surface provided for the adhesive bond.
- the shaft 2 and / or the cap 4 or 8 are, in order to accelerate the healing, with growth factors and / or the healing promoting
- Bacteriocides or bacteriostatic agents or drugs e.g. with P15, BMP1 - 7, modified tetracyclines, fibrin, CHX concentrates, antibiotics, such as amoxicycline, etc.
- a removable, or preferably a, healing cap during the healing period Healing cap made of an elastic material.
- This healing cap is then preferably anatomically correctly shaped for optimal stimulation in accordance with the cross section of the subsequent crown and then also contains agents that improve the healing process, such as e.g. Growth factors, medicines etc.
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- 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)
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10258691 | 2002-12-13 | ||
DE10258691 | 2002-12-13 | ||
DE10304802A DE10304802A1 (de) | 2002-12-13 | 2003-02-05 | Zahnimplantat sowie Verfahren zum Herstellen von Zahnersatz unter Verwendung eines Zahnimplantats |
DE10304802 | 2003-02-05 | ||
PCT/DE2003/004117 WO2004054464A2 (de) | 2002-12-13 | 2003-12-12 | Abutment für ein zahnimplantat, zahnimplantat mit einem solchen abutment sowie verfahren zum herstellen von zahnersatz unter verwendung des zahnimplantats |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1581142A2 true EP1581142A2 (de) | 2005-10-05 |
Family
ID=32598071
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03795747A Withdrawn EP1581142A2 (de) | 2002-12-13 | 2003-12-12 | Abutment für ein zahnimplantat, zahnimplantat mit einem solchen abutment sowie verfahren zum herstellen von zahnersatz unter verwendung des zahnimplantats |
Country Status (7)
Country | Link |
---|---|
US (1) | US20070020582A1 (ko) |
EP (1) | EP1581142A2 (ko) |
JP (1) | JP2006509612A (ko) |
KR (1) | KR20050084293A (ko) |
AU (1) | AU2003298060A1 (ko) |
CA (1) | CA2506845A1 (ko) |
WO (1) | WO2004054464A2 (ko) |
Families Citing this family (34)
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US8814567B2 (en) | 2005-05-26 | 2014-08-26 | Zimmer Dental, Inc. | Dental implant prosthetic device with improved osseointegration and esthetic features |
DE102005032938A1 (de) | 2005-07-14 | 2007-01-18 | Gebr. Brasseler Gmbh & Co. Kg | Dentalimplantat |
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EP2163221B1 (de) * | 2008-09-16 | 2017-12-13 | Straumann Holding AG | Dentalimplantat mit Minimalkern |
EP2163222B1 (de) * | 2008-09-16 | 2018-12-26 | Straumann Holding AG | Abutment mit Minimalkern |
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-
2003
- 2003-12-12 WO PCT/DE2003/004117 patent/WO2004054464A2/de active Application Filing
- 2003-12-12 KR KR1020057010850A patent/KR20050084293A/ko not_active Application Discontinuation
- 2003-12-12 EP EP03795747A patent/EP1581142A2/de not_active Withdrawn
- 2003-12-12 US US10/538,718 patent/US20070020582A1/en not_active Abandoned
- 2003-12-12 JP JP2005502407A patent/JP2006509612A/ja active Pending
- 2003-12-12 CA CA002506845A patent/CA2506845A1/en not_active Abandoned
- 2003-12-12 AU AU2003298060A patent/AU2003298060A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
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See references of WO2004054464A2 * |
Also Published As
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JP2006509612A (ja) | 2006-03-23 |
WO2004054464A8 (de) | 2005-10-06 |
CA2506845A1 (en) | 2004-07-01 |
WO2004054464A2 (de) | 2004-07-01 |
AU2003298060A1 (en) | 2004-07-09 |
KR20050084293A (ko) | 2005-08-26 |
US20070020582A1 (en) | 2007-01-25 |
WO2004054464A3 (de) | 2004-12-02 |
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