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题名: Preparation of an orthodontic bracket coated with an nitrogen-doped TiO2-xNy thin film and examination of its antimicrobial performance
作者: Cao, BC(曹宝成); Wang, YH(王育华); Li, N; Liu, B(刘斌); Zhang, YJ
收录类别: SCIE ; EI ; PubMed ; MEDLINE
出版日期: 2013-04
刊名: DENTAL MATERIALS JOURNAL
卷号: 32, 期号:2, 页码:311-316
出版者: JAPANESE SOC DENTAL MATERIALS DEVICES
出版地: TOKYO
英文摘要: A bracket coated with a nitrogen-doped (N-doped) TiO2-xNy thin film was prepared using the RF magnetron sputtering method. The physicochemical properties of the thin film were measured using X-ray diffraction and energy-dispersive X-ray spectrometry, while the antimicrobial activity of the bracket against common oral pathogenic microbes was assessed on the basis of colony counts. The rate of antimicrobial activity of the bracket coated with nano-TiO2-xNy thin film against Streptococcus mutans, Lactobacillus acidophilus, Actinomyces viscous, and Candida albicans was 95.19%, 91.00%, 69.44%, and 98.86%, respectively. Scanning electron microscopy showed that fewer microbes adhered to the surface of this newly designed bracket than to the surface of the normal edgewise bracket. The brackets coated with the N-doped TiO2-xNy thin film showed high antimicrobial and bacterial adhesive properties against normal oral pathogenic bacterial through visible light, which is effective in prevention of enamel demineralization and gingivitis in orthodontic patients.
关键词: Nano- TiO2-xNy ; Bracket ; Antimicrobial activity
作者部门: [Cao, Baocheng ; Li, Na ; Zhang, Yingjie] Lanzhou Univ, Sch Stomatol, Lanzhou 730000, Peoples R China ; [Wang, Yuhua ; Liu, Bin] Lanzhou Univ, Sch Phys Sci & Technol, Dept Mat Sci, Lanzhou 730000, Peoples R China
通讯作者: Wang, YH (reprint author), Lanzhou Univ, Sch Phys Sci & Technol, Dept Mat Sci, Lanzhou 730000, Peoples R China.
学科分类: Dentistry, Oral Surgery & Medicine; Materials Science
文章类型: Article
所属项目编号: National Science Foundation for Distinguished Young Scholars [50925206] ; Ministry of Education, Chunhui Program [Z2008-1-62007] ; International Science & Technology Cooperation Foundation of Gansu Provincial [090WCGA903] ; Fundamental Research Funds for the Central Universities [lzujbky-2010-83]
所属项目名称: 国家杰出青年科学基金项目 ; 春晖计划 ; 中央高校基本科研业务费专项资金 ; 甘肃省国际科技合作计划
项目资助者: NSFC ; MOE ; LZU ; GSSTD
语种: 英语
DOI: 10.4012/dmj.2012-155
ISSN号: 0287-4547
WOS记录号: WOS:000323467400015
EI记录号: 20131516200337
PM记录号: 23538768
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内容类型: 期刊论文
URI标识: http://ir.lzu.edu.cn/handle/262010/122106
Appears in Collections:口腔医学院_期刊论文

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Recommended Citation:
Cao, BC,Wang, YH,Li, N,et al. Preparation of an orthodontic bracket coated with an nitrogen-doped TiO2-xNy thin film and examination of its antimicrobial performance[J]. DENTAL MATERIALS JOURNAL,2013,32(2):311-316.
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