JP6050114B2 - オーバーレイ法による歯列矯正用アライナの製造 - Google Patents
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- 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
- A61C7/08—Mouthpiece-type retainers or positioners, e.g. for both the lower and upper arch
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- A—HUMAN NECESSITIES
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- 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
- A61C7/002—Orthodontic computer assisted systems
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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Description
本出願は、2009年8月21日出願の米国特許仮出願第61/274,821号、名称「ORTHODONTIC ALIGNER AND METHOD」、および2010年2月24日出願の米国特許仮出願第61/307,668号、名称「ORTHODONTIC ALIGNER FABRICATION BY OVERLAY METHOD」の利益を主張する。これら仮出願の開示を参照により本明細書に組み込む。
次に図9を参照すると、本発明の別の態様では、以下の方法を使用して、矯正治療用アライナを製造するオーバーレイ法がデジタル的に実施されてもよい。最初に、患者の歯の印象を受け取り検査する。ステップ202で、石膏模型10を印象から鋳込み成形する。ステップ204で、例えば、歯科用石膏模型をスキャンするように開発された3Dスキャナシステムである、3shape製の3Shape R700などのスキャニングソフトウェアシステムを使用して、石膏模型をスキャンして、患者の不正咬合歯列における歯の元の位置を表すデジタル形式にする。ステップ206で、例えばOrtho Analyzerソフトウェアを使用して、歯および歯列弓幅をデジタル的に測定する。次に、ステップ208で、処方された隣接歯間縮小処方(IPR)および所望の歯の移動を使用して、患者の不正咬合を分析する。ステップ210で、ソフトウェアを、例えば3shape製のOrtho Analyzer Next Generationソフトウェアを使用して、歯の表現をデジタル的に区分化する。代替実施形態では、デジタルファイルは、患者の歯列の口腔内スキャンから直接作成されて、石膏模型10を作成しスキャンする必要なしに元の不正咬合歯列をデジタル形式で提供してもよい。
Claims (17)
- 歯列矯正用アライナトレイを製造する方法であって、
患者の歯の原型デジタル模型を取得するステップと、
前記原型デジタル模型によって表される前記歯をセグメント化するステップと、
前記原型デジタル模型によって規定される開始位置と最終的な歯の位置を表す最終的な歯科模型によって規定される最終位置とを含むデジタルオーバーレイ模型を作成するように前記最終的な歯科模型を前記原型デジタル模型と重ね合わせるステップと、
歯受入れ区画を各アライナ内に有する少なくとも1つのアライナトレイを製造するステップであって、前記歯受入れ区画は、元の歯の位置に第1の壁を有し、最終的な歯の位置に前記第1の壁に対向する第2の壁を有する、ステップと、
選択された力を選択された歯に掛けるように前記歯受入れ区画内に位置付けられる少なくとも1つの推進器具を、前記少なくとも1つのアライナトレイ内に挿入または形成するステップとを含み、
前記原型デジタル模型によって規定される開始位置は、元の歯の位置における前記歯の全表面を表し、前記最終的な歯科模型によって規定される最終位置は、最終的な歯の位置における前記歯の全表面を表す、歯列矯正用アライナトレイを製造する方法。 - 少なくとも1つのアライナトレイを製造する前記ステップが、前記オーバーレイ模型のラピッドプロトタイプ模型を作成するステップを含む、請求項1に記載の方法。
- ラピッドプロトタイプ模型の作成が、立体リソグラフィ、レーザ焼結、または溶融堆積の1つによって行われる、請求項2に記載の方法。
- 患者の歯の原型デジタル模型を取得する前記ステップが、患者の歯科印象から石膏模型を鋳込み成形するステップと、前記石膏模型をデジタルファイルにスキャンするステップとを含む、請求項1に記載の方法。
- スキャンする前記ステップが、スキャニングソフトウェアシステムを使用して行われる、請求項4に記載の方法。
- 患者の歯の原型デジタル模型を取得する前記ステップが、前記患者の歯列の口腔内スキャンに基づいて前記原型デジタル模型を作成するステップを含む、請求項1に記載の方法。
- 前記歯および歯列弓幅を測定するステップをさらに含む、請求項1に記載の方法。
- 前記最終的な歯の模型がデジタル模型である、請求項1に記載の方法。
- 少なくとも1つのアライナトレイを製造する前記ステップが、真空成形機およびプラスチック熱成形シートを使用して、物理的なオーバーレイ模型の上に前記アライナトレイをそれぞれ真空熱成形するステップをさらに含む、請求項1に記載の方法。
- 前記原型デジタル模型によって表される前記歯をセグメント化する前記ステップがデジタル的に行われる、請求項1に記載の方法。
- 前記少なくとも1つのアライナトレイが複数の同一のアライナトレイを備える、請求項1に記載の方法。
- スキャンする前記ステップが、前記患者の不正咬合歯列における前記歯の元の位置をデジタル形式で表すステップを含む、請求項1に記載の方法。
- 歯列矯正治療計画に従って歯を再配置するためのアライナトレイであって、
オーバーレイ模型と、トレイ部分と、少なくとも1つの推進器具とを備えており、
前記オーバーレイ模型は、
アライナトレイの歯受入れ区画に対応する、元の歯の位置、最終的な歯の位置、および各歯の進路を備え、
元の歯の位置が、患者の歯の原型デジタル模型を形成する各歯の全表面を表し、
最終的な歯の位置が、適正なアライメントに再配置されて最終的な歯科模型を形成する少なくとも1つのセグメント化した歯の全表面を表し、
前記最終的な歯科模型が、前記原型デジタル模型と重ね合わされ、
前記トレイ部分は、前記トレイ部分内に前記歯受入れ区画を規定し、熱成形可能なプラスチックシートから形成され、前記歯受入れ区画は、前記オーバーレイ模型に基づいており、元の歯の位置に第1の壁を有し、最終的な歯の位置に前記第1の壁に対向する第2の壁を有しており、
前記少なくとも1つの推進器具は、選択された力を選択された歯に掛けるように前記歯受入れ区画内に位置決めされている、
歯列矯正治療計画に従って歯を再配置するためのアライナトレイ。 - 前記歯受入れ区画が、患者の治療前の前記原型デジタル模型から前記最終的な歯の模型への開けた進路を提供して、前記歯受入れ区画内での歯の移動を可能にする、請求項13に記載のアライナトレイ。
- 前記推進器具が前記アライナトレイの内壁に熱成形される隆起部である、請求項13に記載のアライナトレイ。
- 前記推進器具が前記アライナトレイの壁に挿入されるタックである、請求項13に記載のアライナトレイ。
- 歯列矯正用アライナトレイを製造する方法であって、
患者の歯の石膏模型を鋳込み成形し、スキャニングソフトウェアシステムを使用して、原型デジタル模型を作成するように前記石膏模型をデジタルファイルにスキャンするステップと、
前記原型デジタル模型によって表される前記歯をセグメント化するステップと、
前記歯および歯列弓幅をデジタル的に測定するステップと、
前記原型デジタル模型によって規定される開始位置と最終的な歯の位置を表す最終的な歯科模型によって規定される最終位置とを含むデジタルオーバーレイ模型を作成するように前記最終的な歯科模型を前記原型デジタル模型と重ね合わせるステップと、
歯受入れ区画を各アライナ内に規定するように前記オーバーレイ模型に基づいて複数の同一のアライナトレイのラピッドプロトタイプ模型を作成するステップと、
前記歯受入れ区画に、元の歯の位置で第1の壁を形成し、最終的な歯の位置で前記第1の壁に対向する第2の壁を形成するステップと、
真空成形機およびプラスチック熱成形シートを使用して、物理的な前記オーバーレイ模型の上に前記アライナトレイをそれぞれ真空熱成形するステップと、
選択された力を選択された歯に掛けるように前記歯受入れ区画内に位置付けられる少なくとも1つの推進器具を、前記複数のアライナトレイの少なくとも1つのアライナトレイに挿入するステップとを含み、
前記原型デジタル模型によって規定される開始位置は、元の歯の位置における前記歯の全表面を表し、前記最終的な歯科模型によって規定される最終位置は、最終的な歯の位置における前記歯の全表面を表す、歯列矯正用アライナトレイを製造する方法。
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US27482109P | 2009-08-21 | 2009-08-21 | |
US61/274,821 | 2009-08-21 | ||
US30766810P | 2010-02-24 | 2010-02-24 | |
US61/307,668 | 2010-02-24 | ||
PCT/US2010/046175 WO2011022654A1 (en) | 2009-08-21 | 2010-08-20 | Orthodontic aligner fabrication by overlay method |
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JP2013502290A JP2013502290A (ja) | 2013-01-24 |
JP6050114B2 true JP6050114B2 (ja) | 2016-12-21 |
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US (2) | US9345557B2 (ja) |
EP (1) | EP2467088B1 (ja) |
JP (1) | JP6050114B2 (ja) |
CA (1) | CA2771309C (ja) |
WO (1) | WO2011022654A1 (ja) |
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