Atmospheric Pressure Plasma Jet Composed of Three Electrodes: Application to Tooth Bleaching

被引：146

作者：

Lee, Hyun Woo ^{[2
]}

Nam, Seoul Hee ^{[1
]}

Mohamed, Abdel-Aleam H. ^{[3
,4
]}

Kim, Gyoo Cheon ^{[1
]}

Lee, Jae Koo ^{[2
]}

机构：

[1] Pusan Natl Univ, Sch Dent, Dept Oral Anat, Yangsan 626810, South Korea

[2] Pohang Univ Sci & Technol, Dept Elect & Elect Engn, Pohang 790784, South Korea

[3] Taibah Univ, Fac Sci, Dept Phys, Almadinah Almunawwarah, Saudi Arabia

[4] Beni Suef Univ, Fac Sci, Dept Phys, Bani Suwayf, Egypt

来源：

PLASMA PROCESSES AND POLYMERS | 2010年 / 7卷 / 3-4期

关键词：

atmospheric pressure plasmas; optical emission spectroscopy (OES); peroxides; plasma jets; tooth bleaching; whitening; HYDROGEN-PEROXIDE; LASER IRRADIATION; LIGHT;

D O I：

10.1002/ppap.200900083

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Three-electrode plasma jet system consisting of a perforated dielectric tube with two outer and one floating inner electrodes was developed and employed for tooth bleaching. Lowered gas breakdown voltage and increased discharge current were achieved by using the floating inner electrode. Optical emission spectra analysis showed that the rotational temperature of the second positive nitrogen bands was approximate to 290 K and vibrational temperature was approximate to 2 500 K, which means this plasma is in highly non-quilibrium state and nonthermal. The presence of excited He, N-2, H-2(+) and O in the plasma plume was revealed. The plasma jet was used in combination with hydrogen peroxide (H2O2) to remove stains from extracted teeth stained by either coffee or red wine. Combining the plasma jet and H2O2 improved the bleaching efficacy by a factor of 3.1 (coffee) and 3.7 (red wine) compared with using H2O2 alone.

引用

页码：274 / 280

页数：7

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