JP5763138B2 - 表面処理多結晶セラミック歯列矯正器及びその製造方法 - Google Patents
表面処理多結晶セラミック歯列矯正器及びその製造方法 Download PDFInfo
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- JP5763138B2 JP5763138B2 JP2013169444A JP2013169444A JP5763138B2 JP 5763138 B2 JP5763138 B2 JP 5763138B2 JP 2013169444 A JP2013169444 A JP 2013169444A JP 2013169444 A JP2013169444 A JP 2013169444A JP 5763138 B2 JP5763138 B2 JP 5763138B2
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
- A61C7/12—Brackets; Arch wires; Combinations thereof; Accessories therefor
- A61C7/14—Brackets; Fixing brackets to teeth
- A61C7/141—Brackets with reinforcing structure, e.g. inserts
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
- A61C7/12—Brackets; Arch wires; Combinations thereof; Accessories therefor
- A61C7/14—Brackets; Fixing brackets to teeth
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/28—Materials for coating prostheses
- A61L27/30—Inorganic materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—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
- C04B35/10—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 aluminium oxide
- C04B35/111—Fine ceramics
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y5/00—Nanobiotechnology or nanomedicine, e.g. protein engineering or drug delivery
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
- C04B2235/602—Making the green bodies or pre-forms by moulding
- C04B2235/6022—Injection moulding
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/74—Physical characteristics
- C04B2235/78—Grain sizes and shapes, product microstructures, e.g. acicular grains, equiaxed grains, platelet-structures
- C04B2235/782—Grain size distributions
- C04B2235/783—Bimodal, multi-modal or multi-fractional
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/74—Physical characteristics
- C04B2235/78—Grain sizes and shapes, product microstructures, e.g. acicular grains, equiaxed grains, platelet-structures
- C04B2235/786—Micrometer sized grains, i.e. from 1 to 100 micron
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
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- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Epidemiology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Dentistry (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Transplantation (AREA)
- Medicinal Chemistry (AREA)
- Dermatology (AREA)
- Inorganic Chemistry (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Description
2つの異なるセルフ−ライゲーティングブラケット構造(それぞれ、モールドA及びモールドC)のサンプルブラケットを、日本の東京の東ソーから仕入れた。2つの異なる多結晶アルミナ組成物が、モールドA及びモールドCブラケットを成形するために使用された。東ソーから仕入れたアルミナ組成物の一方が、型番PXA−800−Aによって識別され(以下“#1アルミナ組成物”)、他方が、PXA−801−A(以下“#2アルミナ組成物”)によって識別された。この2つのアルミナ組成物間の周知の相違点は、セラミック射出成形プロセスの間に使用されるそのバインダー/粉末比である。#2アルミナ組成物が、#1アルミナ組成物よりも多くのバインダーを備えていた。ブラケットを形成するためのアルミナ組成物からそのアルミナ組成物(即ち、#1アルミナ組成物又は#2アルミナ組成物)を指定することに加え、ブラケットの微細構造の所望の平均粒径も、指定された。例示のみを目的としかつなんら制限しないものとして、東ソーから受け取ったCIMブラケット本体の外表面の微細構造が、図4Aに示され、CIMブラケット本体の内部微細構造が、図4Bに示される。受け取ったままのブラケットの一部が、以下に記載するようなさらなる表面処理にさらされ、その結果グループ化された。各ブラケットのトルク強度が、以下のように測定された。
12 ブラケット本体
14 コーティング
16 ライゲーティングスライド
18 弧線スロット
20 弧線
22 舌側
24 咬合側
26 歯茎側
28 近心側
30 遠位側
32 唇側
33 パッド
34 結合基部
36 ベース表面
38,40 スロット表面
Claims (13)
- 弧線を歯に結合させるための歯列矯正器であって、
前記歯列矯正器が、
前記歯に取り付けられるように構成されたセラミック射出成形(CIM)ブラケット本体であって、その中に前記弧線を受け入れるように構成された弧線スロットを含み、多結晶アルミナを含むCIMブラケット本体と、
前記弧線スロットの表面を含む前記CIMブラケット本体の少なくとも一部と連続的かつ直接的に接触した蒸着されたアルミナの第一コーティングであって、数100ピコメートルから15μmの厚さを有する第一コーティングと、
を備えることを特徴とする歯列矯正器。 - 前記第一コーティングが、非晶質またはナノ結晶質であることを特徴とする請求項1に記載の歯列矯正器。
- 前記第一コーティングが、前記多結晶アルミナの平均粒径よりも小さな平均粒径を有する微細構造を含むことを特徴とする請求項2に記載の歯列矯正器。
- 前記第一コーティングが、前記CIMブラケット本体の表面粗度以上の厚さを有することを特徴とする請求項1から3のいずれか1項に記載の歯列矯正器。
- セラミックを含み、前記第一コーティングの少なくとも一部を覆う第二コーティングをさらに備えることを特徴とする請求項1から4のいずれか1項に記載の歯列矯正器。
- 前記多結晶アルミナを含むライゲーティングスライドをさらに含むことを特徴とする請求項1に記載の歯列矯正器。
- 前記多結晶アルミナが、マルチモーダルである粒径分布を有することを特徴とする請求項1から6のいずれか1項に記載の歯列矯正器。
- 前記多結晶アルミナの粒径分布が二峰性であることを特徴とする請求項7に記載の歯列矯正器。
- 弧線を歯に結合させるための歯列矯正器の製造方法であって、
前記製造方法が、
アルミナ粉末及びバインダーの混合物を提供する段階と、
成形ブラケット本体を形成するように、前記混合物を成形用キャビティに注入する段階と、
実質的に前記バインダーを前記成形ブラケット本体から除去するように、前記成形ブラケット本体を加熱する段階と、
前記歯に取り付けられるように構成されたセラミック射出成形(CIM)ブラケット本体を形成するように、前記成形ブラケット本体を焼結する段階と、
前記CIMブラケット本体内に弧線スロットを形成する段階であって、その中に前記弧線を受け入れるように構成された弧線スロットを形成する段階と、
前記弧線スロットを含む前記CIMブラケット本体の少なくとも一部上に、前記CIMブラケット本体と連続的かつ直接的に接触するアルミナのコーティングを蒸着する段階であって、前記コーティングが数100ピコメートルから15μmの厚さを有する段階と、
を備えることを特徴とする方法。 - 前記コーティングを蒸着する段階が、物理的気相成長法又は化学的気相成長法によって前記コーティングを蒸着する段階を含むことを特徴とする請求項9に記載の方法。
- 前記コーティングを蒸着する段階の前に、前記CIMブラケット本体の表面の少なくとも一部を除去する段階をさらに含むことを特徴とする請求項9に記載の方法。
- 前記アルミナ粉末及びバインダーの混合物を提供する段階から前記成形ブラケット本体を焼結する段階は、粒径分布がマルチモーダルである多結晶アルミナを形成する段階であることを特徴とする請求項9から11のいずれか1項に記載の方法。
- 前記多結晶アルミナの粒径分布が二峰性であることを特徴とする請求項12に記載の方法。
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US11456508P | 2008-11-14 | 2008-11-14 | |
US61/114,565 | 2008-11-14 |
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JP2009260208A Division JP2010115492A (ja) | 2008-11-14 | 2009-11-13 | 表面処理多結晶セラミック歯列矯正器及びその製造方法 |
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JP2013169444A Active JP5763138B2 (ja) | 2008-11-14 | 2013-08-19 | 表面処理多結晶セラミック歯列矯正器及びその製造方法 |
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US (1) | US9717569B2 (ja) |
EP (1) | EP2189132B1 (ja) |
JP (2) | JP2010115492A (ja) |
KR (1) | KR101182009B1 (ja) |
CN (2) | CN104146785A (ja) |
AU (1) | AU2009238317B2 (ja) |
BR (1) | BRPI0925289A2 (ja) |
MX (1) | MX341503B (ja) |
RU (1) | RU2009142016A (ja) |
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- 2009-11-10 EP EP09252586.4A patent/EP2189132B1/en active Active
- 2009-11-12 KR KR1020090109101A patent/KR101182009B1/ko active IP Right Grant
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KR20100054736A (ko) | 2010-05-25 |
CN101897624B (zh) | 2014-07-09 |
MX2009012333A (es) | 2010-05-28 |
US20100173256A1 (en) | 2010-07-08 |
US9717569B2 (en) | 2017-08-01 |
KR101182009B1 (ko) | 2012-09-11 |
EP2189132A2 (en) | 2010-05-26 |
JP2010115492A (ja) | 2010-05-27 |
AU2009238317A1 (en) | 2010-06-03 |
RU2009142016A (ru) | 2011-05-20 |
JP2013233452A (ja) | 2013-11-21 |
CN104146785A (zh) | 2014-11-19 |
EP2189132B1 (en) | 2017-01-04 |
EP2189132A3 (en) | 2012-05-30 |
BRPI0925289A2 (pt) | 2015-09-08 |
CN101897624A (zh) | 2010-12-01 |
MX341503B (es) | 2016-08-22 |
AU2009238317B2 (en) | 2011-10-06 |
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