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学科主题: 口腔医学
题名:
Tooth Enamel Evaluation After Tooth Bleaching With Hydrogen Peroxide Assisted by a DC Nonthermal Atmospheric-Pressure Plasma Jet
作者: Wang, Jing1; Yang, Xiaohui1,2; Sun, Ke1,2; Sun, Peng2,3; Pan, Jie4,5; Zhu, Weidong6; Becker, Kurt H.7; Zhang, Jue2,3; Fang, Jing2,3
关键词: Energy-dispersive X-ray spectroscopy (EDX) ; microhardness ; nonthermal plasma ; scanning electron microscope (SEM) ; surface roughness ; tooth bleaching ; tooth enamel
刊名: IEEE TRANSACTIONS ON PLASMA SCIENCE
发表日期: 2012-09-01
DOI: 10.1109/TPS.2012.2204779
卷: 40, 期:9, 页:2157-2162
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Physics, Fluids & Plasmas
研究领域[WOS]: Physics
关键词[WOS]: AIR PLASMA ; MICROJET ; BACTERIA
英文摘要:

The purpose of this study is to evaluate the changes in dental enamel (morphology, elemental composition, microhardness, and roughness) after applying hydrogen peroxide in conjunction with a nonthermal plasma to bleach the teeth. Extracted human teeth were randomly placed in six groups. Two control groups (one group with no bleaching agent and no plasma treatment of the teeth and another one with only hydrogen peroxide as the bleaching agent) and four plasma groups (receiving hydrogen peroxide of varying concentrations 6%, 15%, 25%, and 35%, in conjunction with a plasma treatment) were prepared. The surface morphology before and after treatment was assessed using a scanning electron microscope (SEM), and the change in the elemental composition was analyzed by an energy-dispersive X-ray spectroscopy system. A total of 36 extracted teeth were used to evaluate the change in enamel microhardness and surface roughness. The use of hydrogen peroxide as a bleaching agent, even in the absence of plasma exposure, causes various etching patterns that are attributable to demineralization during the treatment process. These patterns are more pronounced as the hydrogen peroxide concentration increases. The surface roughness tests confirmed the findings from the SEM analysis. We only found minor essentially insignificant changes in the elemental composition of the enamel and in the surface microhardness as a result of the treatment using hydrogen peroxide and a cold plasma. The use of a cold plasma in conjunction with hydrogen peroxide of varying concentrations in tooth bleaching causes minor changes in the tooth enamel changes that are comparable to those resulting from the standard treatment using 35% hydrogen peroxide gel without a plasma.

语种: 英语
所属项目编号: 2009DFB30370 ; 2007CB935602 ; lzujbky-2012-159
项目资助者: Bioelectrics Inc. (U.S.A.) ; Ministry of Science and Technology (MOST) Program of the International Science and Technology Cooperation ; National Basic Research Program ; Fundamental Research Funds for the Central Universities
WOS记录号: WOS:000308659600008
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/51826
Appears in Collections:北京大学口腔医学院_综合治疗科_期刊论文

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作者单位: 1.St Peters Coll, Dept Appl Sci & Technol, Jersey City, NJ 07306 USA
2.NYU, Polytech Inst, Dept Appl Phys, Brooklyn, NY 11201 USA
3.Lanzhou Univ, Sch Stomatol, Lanzhou 730000, Peoples R China
4.Peking Univ, Coll Engn, Beijing 100871, Peoples R China
5.Peking Univ, Acad Adv Interdisciplinary Study, Beijing 100871, Peoples R China
6.Peking Univ, Sch Stomatol, Dept Gen Dent, Beijing 100081, Peoples R China
7.Peking Univ, Hosp Stomatol, Dept Gen Dent, Beijing 100081, Peoples R China

Recommended Citation:
Wang, Jing,Yang, Xiaohui,Sun, Ke,et al. Tooth Enamel Evaluation After Tooth Bleaching With Hydrogen Peroxide Assisted by a DC Nonthermal Atmospheric-Pressure Plasma Jet[J]. IEEE TRANSACTIONS ON PLASMA SCIENCE,2012,40(9):2157-2162.
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