JP4289676B2 - 歯を白くする製品 - Google Patents
歯を白くする製品 Download PDFInfo
- Publication number
- JP4289676B2 JP4289676B2 JP2004506772A JP2004506772A JP4289676B2 JP 4289676 B2 JP4289676 B2 JP 4289676B2 JP 2004506772 A JP2004506772 A JP 2004506772A JP 2004506772 A JP2004506772 A JP 2004506772A JP 4289676 B2 JP4289676 B2 JP 4289676B2
- Authority
- JP
- Japan
- Prior art keywords
- whitening
- teeth
- composition
- peroxide
- tooth
- 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.)
- Expired - Lifetime
Links
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Images
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q11/00—Preparations for care of the teeth, of the oral cavity or of dentures; Dentifrices, e.g. toothpastes; Mouth rinses
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
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Description
ΔE=(ΔL*2+Δa*2+Δb*2)1/2
ΔLが正の場合、Δb*は負であり、及びa*は0に近づき、ΔEは歯の白さの改善を表す。ΔEはスカラー値であり、そのため、ΔEは色の変化の大きさは表すが、方向は表さない。この理由のため、ΔE値が歯の白さの改善を表すか否かを決定するために、個々の色の構成成分L*、a*、及びb*の変化の方向が評価されなければならない。ΔEにより表される場合の、白くする効果を測定するための方法は、以下に更に十分に述べる。
歯の色を、日本の富士フイルム株式会社(Fuji Film Corp.)製造のカメラ型式番号HC−1000のような、偏光フィルターを装備した4×50電動ズームレンズを有するデジタルカメラを用いることにより測定することができる。光路が各照明の正面114cmで交差するように、照明装置を35cm離して配置し、45度の角度に向けられた150W、24Vの電球を装備したデド(Dedo)・ライトにより提供することができる。各照明は偏光フィルター及びカットオフ・フィルターを有する。
L*=0.104*R+0.183*G+0.00847*B+20.12
a*=0.319*R−0.468*G+0.138*B+3.82
b*=0.176*R+0.262*G−0.425*B−1.78
これらの方程式は、一般に、歯の色の領域内の有効な変換である(60<L*<95、0<a<14、6<b<25)。各被験者の画像の組からのデータは次に、製品の白くする性能を、L*、a*、及びb*の変化に関して計算するために用いられる(白くする効果を評価するために用いられる標準方法である)。L*(輝度)の変化は、ΔL*=L14日−L基準として定義される。正の変化は明るさの改善を示す。a*(赤−緑のバランス)の変化は、Δa*=a14日−a基準として定義される。負の変化は赤の色合いが少ない歯を示す。b*(黄−青のバランス)の変化は、Δb*=b*14日−b*基準として定義される。負の変化は、歯が黄色の色合いが少なくなっていることを示す。全体の色の変化は、方程式ΔE=(ΔL2+Δa*2+Δb*2)1/2により計算される。
過酸化物濃度は、ヨード滴定法(Iodometric titration method)(「過酸化水素(Hydrogen Peroxide)」、ウォルターC.シャム(Walter C.Schumb)、ラインホールド出版(Reinhold Publishing)、版権1955年)を用いて測定することができる。ヨード滴定法は、過酸化物濃度を測定するための当該技術分野において既知の標準方法である。一般に、この方法は、材料片及び過酸化活性物質を含有する組成物を秤量し、この組成物を1M硫酸に溶解し、並びに過酸化物を過剰の10%ヨウ化カリウム水溶液(J.T.ベーカー(J.T.Baker)より入手可能な粒状試薬、カタログ番号3162−01、CAS番号7681−11−0)と、1%モリブデン酸アンモニウム(VWRカタログ番号VW3627−1)の数滴の存在下で反応させることにより実施される。次に、これを、0.025N濃度のチオ硫酸ナトリウム(VWRカタログ番号VW3127−1)により、デンプン指示薬を用いる透明な終点まで滴定する。1%デンプン指示薬(VWRカタログ番号VW3368−1)が、滴定溶液が浅黄色になったら添加する。材料片が滴定完了の際に坪量され、組成物の重量が、装置と組成物の重量を加えた出発重量からの差により決定される。組成物中の過酸化物濃度が次に計算され得る。
Claims (11)
- 1つ以上の歯の前表面及び前記1つ以上の歯の前記前表面に隣接する軟組織を覆う大きさの材料片と、
前記材料片に配置された歯を白くする組成物の薄層と
を備え、
前記歯を白くする組成物は、前記歯を白くする組成物の7.5重量%を越える濃度を有する過酸化活性物質を含み、
前記歯を白くする組成物は、1.3mg/cm2未満の過酸化物密度を有する歯を白くする製品。 - 前記過酸化活性物質が、8%〜40%の濃度を有する請求項1に記載の歯を白くする製品。
- 前記過酸化物密度が、0.01mg/cm2 以上1.3mg/cm2 未満である請求項1又は2に記載の歯を白くする製品。
- 前記歯を白くする組成物が更に水を含む請求項1〜3のいずれか一項に記載の歯を白くする製品。
- 前記水の量が、前記歯を白くする組成物の60重量%〜90重量%である請求項4に記載の歯を白くする製品。
- 前記歯を白くする組成物が更にゲル化剤を含む請求項1〜5のいずれか一項に記載の歯を白くする製品。
- 前記ゲル化剤の量が、前記歯を白くする組成物の1重量%〜10重量%である請求項6に記載の歯を白くする製品。
- 前記薄層の厚さが0.3mm未満である請求項1〜7のいずれか一項に記載の歯を白くする製品。
- 前記薄層の厚さが0.008mm〜0.1mmである請求項1〜7のいずれか一項に記載の歯を白くする製品。
- ヘッドスペースを有する包装内に配置される請求項1〜9のいずれか一項に記載の歯を白くする製品。
- 前記歯を白くする組成物が、0.0005gm/cm2〜0.03gm/cm2の組成物荷重を有する請求項1〜10のいずれか一項に記載の歯を白くする製品。
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US10/154,020 US6949240B2 (en) | 2002-05-23 | 2002-05-23 | Tooth whitening products |
PCT/US2003/016372 WO2003099247A1 (en) | 2002-05-23 | 2003-05-17 | Tooth whitening products |
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JP2005526853A JP2005526853A (ja) | 2005-09-08 |
JP4289676B2 true JP4289676B2 (ja) | 2009-07-01 |
Family
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JP2004506772A Expired - Lifetime JP4289676B2 (ja) | 2002-05-23 | 2003-05-17 | 歯を白くする製品 |
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EP (1) | EP1505951B1 (ja) |
JP (1) | JP4289676B2 (ja) |
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-
2002
- 2002-05-23 US US10/154,020 patent/US6949240B2/en not_active Expired - Lifetime
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2003
- 2003-05-17 MX MXPA04011576A patent/MXPA04011576A/es active IP Right Grant
- 2003-05-17 AU AU2003231830A patent/AU2003231830B2/en not_active Expired
- 2003-05-17 RU RU2004137665/15A patent/RU2296557C2/ru active
- 2003-05-17 WO PCT/US2003/016372 patent/WO2003099247A1/en active IP Right Grant
- 2003-05-17 JP JP2004506772A patent/JP4289676B2/ja not_active Expired - Lifetime
- 2003-05-17 PL PL03371931A patent/PL371931A1/xx not_active Application Discontinuation
- 2003-05-17 KR KR1020087014224A patent/KR20080063872A/ko not_active Application Discontinuation
- 2003-05-17 KR KR1020077004391A patent/KR20070035107A/ko not_active Application Discontinuation
- 2003-05-17 CN CNB038117207A patent/CN1293855C/zh not_active Expired - Lifetime
- 2003-05-17 EP EP03755465.6A patent/EP1505951B1/en not_active Revoked
- 2003-05-17 CA CA2487113A patent/CA2487113C/en not_active Expired - Lifetime
- 2003-05-17 KR KR10-2004-7018146A patent/KR20050003431A/ko not_active Application Discontinuation
- 2003-05-17 ES ES03755465T patent/ES2417058T3/es not_active Expired - Lifetime
- 2003-05-22 TW TW092113873A patent/TW200400050A/zh unknown
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- 2005-08-15 HK HK05107034.8A patent/HK1075822A1/xx not_active IP Right Cessation
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2007
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- 2007-07-31 US US11/888,146 patent/US20070298088A1/en not_active Abandoned
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AU2003231830B2 (en) | 2007-08-09 |
SA03240214B1 (ar) | 2007-05-06 |
EP1505951B1 (en) | 2013-04-10 |
US20050287086A1 (en) | 2005-12-29 |
WO2003099247A1 (en) | 2003-12-04 |
US6949240B2 (en) | 2005-09-27 |
TW200400050A (en) | 2004-01-01 |
US20070298088A1 (en) | 2007-12-27 |
KR20070035107A (ko) | 2007-03-29 |
EP1505951A1 (en) | 2005-02-16 |
CA2487113C (en) | 2011-06-21 |
ES2417058T3 (es) | 2013-08-05 |
HK1075822A1 (en) | 2005-12-30 |
KR20080063872A (ko) | 2008-07-07 |
JP2005526853A (ja) | 2005-09-08 |
SA03240214A (ar) | 2005-12-03 |
ZA200409325B (en) | 2005-09-28 |
CA2487113A1 (en) | 2003-12-04 |
US20070297994A1 (en) | 2007-12-27 |
US20030219389A1 (en) | 2003-11-27 |
RU2004137665A (ru) | 2005-06-10 |
KR20050003431A (ko) | 2005-01-10 |
US20080226567A1 (en) | 2008-09-18 |
PL371931A1 (en) | 2005-07-11 |
MXPA04011576A (es) | 2005-03-07 |
CN1293855C (zh) | 2007-01-10 |
AU2003231830A1 (en) | 2003-12-12 |
RU2296557C2 (ru) | 2007-04-10 |
CN1655754A (zh) | 2005-08-17 |
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