2009 Fiscal Year Final Research Report
Development of process of teeth bleachingwith low density hydrogenperoxide irradiated by red optical laser diode
| Project/Area Number |
20791417
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Prosthetic dentistry
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| Research Institution | Tohoku University |
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Principal Investigator |
IKAI Hiroyo Tohoku University, 大学院・歯学研究科, 助教 (20431588)
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| Project Period (FY) |
2008 – 2009
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| Keywords | 歯の漂白 / レーザーダイオード / 低濃度過酸化水素 / ヒドロキシルラジカル / 赤色光パルスレーザー |
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| Research Abstract |
We demonstrated that hydrogen peroxide had a bleaching effect on solution containing melanin pigment. It was observed that 1 M hydrogen peroxide irradiated by laser light showed high bleaching effect in proportion to the irradiation time. Since the free radicals generated in this reaction system was mainly hydroxyl radical, it has been suggested objectively for the first time that hydroxyl radical is involved in the mechanism of bleaching.
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