JP2005537848A - 強化型セラミック修復物 - Google Patents
強化型セラミック修復物 Download PDFInfo
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- JP2005537848A JP2005537848A JP2004533876A JP2004533876A JP2005537848A JP 2005537848 A JP2005537848 A JP 2005537848A JP 2004533876 A JP2004533876 A JP 2004533876A JP 2004533876 A JP2004533876 A JP 2004533876A JP 2005537848 A JP2005537848 A JP 2005537848A
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- 239000011226 reinforced ceramic Substances 0.000 title 1
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims abstract description 139
- 238000000034 method Methods 0.000 claims abstract description 43
- 239000000919 ceramic Substances 0.000 claims abstract description 42
- 239000011521 glass Substances 0.000 claims abstract description 37
- 239000002245 particle Substances 0.000 claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 claims abstract description 14
- 239000005401 pressed glass Substances 0.000 claims abstract description 14
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000003825 pressing Methods 0.000 claims abstract description 11
- RUDFQVOCFDJEEF-UHFFFAOYSA-N yttrium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[Y+3].[Y+3] RUDFQVOCFDJEEF-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000008188 pellet Substances 0.000 claims description 11
- 238000012360 testing method Methods 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 238000003860 storage Methods 0.000 claims description 3
- 238000001652 electrophoretic deposition Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 claims description 2
- 239000002002 slurry Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 description 24
- 229910052573 porcelain Inorganic materials 0.000 description 16
- 239000000843 powder Substances 0.000 description 12
- 230000008901 benefit Effects 0.000 description 11
- 238000005245 sintering Methods 0.000 description 11
- 229910052751 metal Inorganic materials 0.000 description 9
- 239000002184 metal Substances 0.000 description 9
- 229910002077 partially stabilized zirconia Inorganic materials 0.000 description 9
- 239000002241 glass-ceramic Substances 0.000 description 8
- 239000010410 layer Substances 0.000 description 8
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 6
- 229910004298 SiO 2 Inorganic materials 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 238000003475 lamination Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 239000011819 refractory material Substances 0.000 description 6
- 239000011230 binding agent Substances 0.000 description 5
- 238000007796 conventional method Methods 0.000 description 5
- 229910018068 Li 2 O Inorganic materials 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 4
- 238000010030 laminating Methods 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 239000003086 colorant Substances 0.000 description 3
- 230000010485 coping Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000001000 micrograph Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 239000002356 single layer Substances 0.000 description 3
- 239000007858 starting material Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 241000406668 Loxodonta cyclotis Species 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000292 calcium oxide Substances 0.000 description 2
- 235000012255 calcium oxide Nutrition 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004040 coloring Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 239000006112 glass ceramic composition Substances 0.000 description 2
- 239000000156 glass melt Substances 0.000 description 2
- 238000000462 isostatic pressing Methods 0.000 description 2
- 239000000078 metal ceramic alloy Substances 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 210000000214 mouth Anatomy 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910001233 yttria-stabilized zirconia Inorganic materials 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 229910000897 Babbitt (metal) Inorganic materials 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- 241000122205 Chamaeleonidae Species 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052691 Erbium Inorganic materials 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 229910052777 Praseodymium Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000003462 bioceramic Substances 0.000 description 1
- 229910002084 calcia-stabilized zirconia Inorganic materials 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000011351 dental ceramic Substances 0.000 description 1
- 210000004268 dentin Anatomy 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- UYAHIZSMUZPPFV-UHFFFAOYSA-N erbium Chemical compound [Er] UYAHIZSMUZPPFV-UHFFFAOYSA-N 0.000 description 1
- 239000010433 feldspar Substances 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000009408 flooring Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052907 leucite Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 229910002085 magnesia-stabilized zirconia Inorganic materials 0.000 description 1
- 229910001510 metal chloride Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000012255 powdered metal Substances 0.000 description 1
- PUDIUYLPXJFUGB-UHFFFAOYSA-N praseodymium atom Chemical compound [Pr] PUDIUYLPXJFUGB-UHFFFAOYSA-N 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910002076 stabilized zirconia Inorganic materials 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
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- A61C13/00—Dental prostheses; Making same
- A61C13/08—Artificial teeth; Making same
- A61C13/09—Composite teeth, e.g. front and back section; Multilayer teeth
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- A61C13/0003—Making bridge-work, inlays, implants or the like
- A61C13/0004—Computer-assisted sizing or machining of dental prostheses
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- A61K6/70—Preparations for dentistry comprising inorganic additives
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- A61K6/80—Preparations for artificial teeth, for filling teeth or for capping teeth
- A61K6/802—Preparations for artificial teeth, for filling teeth or for capping teeth comprising ceramics
- A61K6/818—Preparations for artificial teeth, for filling teeth or for capping teeth comprising ceramics comprising zirconium oxide
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- A61K6/80—Preparations for artificial teeth, for filling teeth or for capping teeth
- A61K6/802—Preparations for artificial teeth, for filling teeth or for capping teeth comprising ceramics
- A61K6/824—Preparations for artificial teeth, for filling teeth or for capping teeth comprising ceramics comprising transition metal oxides
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C4/00—Compositions for glass with special properties
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- C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
- C03C8/02—Frit compositions, i.e. in a powdered or comminuted form
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- C04B35/48—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on zirconium or hafnium oxides, zirconates, zircon or hafnates
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- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
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- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
- G16H20/00—ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance
- G16H20/40—ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance relating to mechanical, radiation or invasive therapies, e.g. surgery, laser therapy, dialysis or acupuncture
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
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Abstract
Description
modellieren」と題された記事が参照可能である。この参考資料には、咬合用歯科修復物を製作する方法が記載されている。まず鋳造構造体を不透明なライナの2層で覆ってから、咬合歯と咬合接触し、かつ隣接歯と近遠心接触するまでワックスアップする。ワックス部分にスプルーを取り付けて修復物を耐火材に埋没させ、歯色のガラスセラミックを金属下部構造体上にプレスする。金属は性質上半透明ではないので、半透明のガラスセラミックの外側を介してきらめく。この結果、審美性の低い修復物となる。
Speldel; P.J. Uggowitzer; vdf Hochschulverlag AG, ETH Zurich; Zurich (1998) 165-189 に掲載されたFilserらによる「セラミックの直接機械加工によるオールセラミック歯科ブリッジ」(All-Ceramic Dental Bridges by Direct Ceramic Machining (DCM) )と題された記事が参照可能である。ジルコニア構造体はスラブ連鋳または加工によって生成可能である。ジルコニアは不透明であるため、歯色の歯科用ガラスが用いられることによって、適切で自然な審美性を有するジルコニア床となる。
Quintessenz Zahntech. 28(2) (2002), 150-158の中で、コーデントクラウン (Cordent
crown) について説明している。このクラウンは、直接、クラウンショルダを含む象牙質全形を模ってAGC ガルバノイエローキャップを作り、耐火材に埋没させ、セラミックをプレスしてから模型を取り出した後、焼成物の表面を削ってつやを出すことによって製作される。黄色い金属の被せ物は、咬合および縁部付近において深いオレンジ色のよい色になると言われている。Cornelissenは、コーデントクラウンがオールセラミックシステムの利点とメタルセラミックシステムの利点とを併せ持つことを記載している。
Luthy、審美歯科のCAD/CIM、Quintessenz, Chicago, (1996), 299ffに説明されている。使用するジルコニアは、高い強度を有しており、単一修復物における支持構造体にも、3〜4歯に及ぶブリッジなどのより大きい構造体にも、使用可能である。
好ましくは、製作した歯からショルダを除いている間に、圧力がコアだけに移動する。
Elsevier Science Ltd.参照)。このように、YTZPガラス結合剤に関して信じられていることは、YTZPのLTDによって、変形された粒子付近および特にYTZPの亀裂のない表面に一般的な微小な亀裂が生じること、ならびにこの微小な亀裂がガラス‐ジルコニア組織の接着強度を低下させ、かつジルコニア材に水をさらに浸入させることによってLTDの拡大を加速させることである。
本発明は、上述の利点をすべて提供する。本発明は、隣接歯および咬合歯との咬合接触面および近遠心接触面にヒートプレスした審美的な修復物を製作する方法を含む。この修復物は、細粒のイットリアをドープした正方晶ジルコニア(YTZP)の支持構造体で強化される。
クラウン、部分被覆クラウンまたはブリッジなどのジルコニア上部構造体を上からプレスするに適する低膨張ガラスまたはガラスセラミック材を作製した。これらに対して、粉末状の金属酸化物または炭酸塩または硝酸塩を適切な比率で配合して、4混合物を作成する。配合した粉末を溶かして、ガラス融液を形成した後、当業者に公知の手段で、冷却して乾燥してから、ボールミルしてふるう(表1の最終組成物参照)。
Netherlands)に埋没させたジルコニア構造体を、高密度に焼結したペレットとともに、上からプレスするとき、ライナ層は溶けてマージン部分まで浸透した。このシリカベースの耐火材は、実施例4の酸化物の組成を有する。
形成した接触面を断面で観察した。その結果を図6および7にマイクロ写真で示す。
Claims (10)
- フルセラミック歯科修復物の製作方法であって、イットリアをドープした正方晶ジルコニア(YTZP)からなる、全体的または部分的に支持する構造体の上に、歯色のプレスガラスをヒートプレスすることを含み、前記イットリア含有正方晶ジルコニアセラミックは、線インターセプト法によって測定される粒径が0.6μm未満であり、前記プレスガラスの熱膨張係数(TEC)が、9.0〜11.0μm/m.K(25〜500℃の範囲で測定)であり、前記プレスガラスのプレス温度は750〜1000℃であることを特徴とするフルセラミック歯科修復物の製作方法。
- 前記支持構造体がCAD/CAM技術によって高密度に焼結したセラミックを含むことを特徴とする請求項1記載の方法。
- 未焼結の状態または部分的に焼結した状態で、CAD/CAMシステムによって前記セラミックを加工した後、充分に焼結することを特徴とする請求項2記載の方法。
- 熱間静水圧的に断続的にプレスされたジルコニアから前記支持構造体を加工することを特徴とする請求項1または2記載の方法。
- スラリからのジルコニアの電気泳動堆積によって、前記支持構造体を形成した後、充分に焼結することを特徴とする請求項1に記載の方法。
- 前記構造体は、0.5〜2mmだけ短くしておき、前記プレスガラスは、マージンにコアが見えることなく、審美的に好ましいショルダを形成することを特徴とする請求項1記載の方法。
- 前記ジルコニア支持構造体上に、融点が前記プレスガラスのプレス温度よりも50℃未満低いライナを塗布することを特徴とする請求項1〜6のいずれか1項に記載の方法。
- プレスペレット収納容器および試験品に接続するコネクタが1.5〜2.5mm厚の連続したフロープレートであることを特徴とする請求項1〜7のいずれか1項に記載の方法。
- フルセラミック歯科修復物であって、イットリアをドープした正方晶ジルコニア(YTZP)からなる、全体的または部分的に支持する構造体と、ヒートプレスした歯色のプレスガラスとを有し、咬合歯と咬合接触し、かつ隣接歯と近遠心接触するように模られることを特徴とするフルセラミック歯科修復物。
- 請求項1〜8のいずれか1項に記載の方法によって得られる請求項9記載のフルセラミック歯科修復物。
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EP02078708A EP1396237A1 (en) | 2002-09-05 | 2002-09-05 | Strengthened ceramic restoration |
PCT/NL2003/000616 WO2004021921A1 (en) | 2002-09-05 | 2003-09-03 | Strengthened ceramic restoration |
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JP2005537848A true JP2005537848A (ja) | 2005-12-15 |
JP4381985B2 JP4381985B2 (ja) | 2009-12-09 |
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US (1) | US20060099552A1 (ja) |
EP (2) | EP1396237A1 (ja) |
JP (1) | JP4381985B2 (ja) |
KR (1) | KR20050057198A (ja) |
CN (1) | CN100446737C (ja) |
AT (1) | ATE319384T1 (ja) |
AU (1) | AU2003261027A1 (ja) |
BR (1) | BR0313998A (ja) |
CA (1) | CA2504739C (ja) |
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JPWO2008023775A1 (ja) * | 2006-08-25 | 2010-01-14 | 国立大学法人 東京医科歯科大学 | 歯科修復物及びその製造方法、並びに歯科修復物用の陶材ペースト |
JP2019531312A (ja) * | 2016-10-10 | 2019-10-31 | デンツプライ シロナ インコーポレイテッド | 歯科補綴物のための色調調整された前装陶材系 |
JP7021205B2 (ja) | 2016-10-10 | 2022-02-16 | デンツプライ シロナ インコーポレイテッド | 歯科補綴物のための色調調整された前装陶材系 |
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CA2504739A1 (en) | 2004-03-18 |
CN100446737C (zh) | 2008-12-31 |
EP1534169A1 (en) | 2005-06-01 |
BR0313998A (pt) | 2005-07-19 |
DE60303964D1 (de) | 2006-05-04 |
KR20050057198A (ko) | 2005-06-16 |
EP1534169B1 (en) | 2006-03-08 |
US20060099552A1 (en) | 2006-05-11 |
CN1678251A (zh) | 2005-10-05 |
DE60303964T2 (de) | 2006-12-07 |
JP4381985B2 (ja) | 2009-12-09 |
CA2504739C (en) | 2009-11-10 |
AU2003261027A1 (en) | 2004-03-29 |
EP1396237A1 (en) | 2004-03-10 |
ATE319384T1 (de) | 2006-03-15 |
WO2004021921A1 (en) | 2004-03-18 |
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