IR@PKUHSC  > 北京大学口腔医学院  > 口腔颌面外科
学科主题口腔医学
Effects of Different pH Conditions on Enamel Erosion Repair by Nano Fluorapatite Pastes
Wang, Chengjie2,3,4; Zhang, Yifei2,3,4; Wei, Jie1,4; Wei, Shicheng2,3,4
关键词Enamel Erosion Nano Fluorapatite pH Value Self-Assembly
刊名JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
2012-09-01
DOI10.1166/jnn.2012.6508
12期:9页:7346-7353
收录类别SCI
文章类型Article
WOS标题词Science & Technology
类目[WOS]Chemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
资助者State Key Development Program for Basic Research of China ; Fundamental Research Funds for the Central Universities ; Peking University ; National Natural Science Foundation of China ; Nano special program of Science and Technology Development of Shanghai ; State Key Development Program for Basic Research of China ; Fundamental Research Funds for the Central Universities ; Peking University ; National Natural Science Foundation of China ; Nano special program of Science and Technology Development of Shanghai
研究领域[WOS]Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
关键词[WOS]CARIES LESIONS ; HUMAN TOOTH ; HYDROXYAPATITE ; GROWTH ; PHOSPHATE ; MICROSTRUCTURE ; FLUORIDE ; SYSTEM
英文摘要

The effects of different pH conditions on enamel erosion repair by nano fluorapatite (n-FA) pastes were evaluated in this study. Eighteen human dental enamel blocks with artificially-induced erosion were randomly divided into three groups that were coated with n-FA pastes with 3 different pH values (pH < 1, pH = 4.5 and pH = 7.5, respectively) for 15 minutes. SEM, XRD, XPS, Vickers microhardness test and mass measurement were performed for the enamels before and after treatment. A layer of enamel-like fluoride substituted hydroxyapatite was observed on the surface of all the samples. After treatment by n-FA pastes with 3 different pH values (pH < 1, pH = 4.5 and pH = 7.5), the Vickers micro-hardness value was respectively changed to 125.9 HV, 252.1 HV and 304.9 HV from 241.3 HV of the artificial enamel erosion, and mass loss was 0.75 mg/mm(2), 0.41 mg/mm(2) and 0.30 mg/mm(2), respectively. SEM analysis showed that the surface of the enamels treated by n-FA pastes with pH 7.5 and pH 4.5 was smoother than those treated by n-FA pastes with pH < 1. These results suggested that the pH value had significant effects for the repairment of enamel erosion with n-FA pastes. This study demonstrated that the n-FA paste with neutral pH value (7.5) for enamel erosion repair would not only significantly enhance the enamel surface hardness, but also avoid the enamel mass loss and increased surface roughness.

语种英语
所属项目编号2007CB936103 ; 30970720 ; 1052nm06600
资助者State Key Development Program for Basic Research of China ; Fundamental Research Funds for the Central Universities ; Peking University ; National Natural Science Foundation of China ; Nano special program of Science and Technology Development of Shanghai ; State Key Development Program for Basic Research of China ; Fundamental Research Funds for the Central Universities ; Peking University ; National Natural Science Foundation of China ; Nano special program of Science and Technology Development of Shanghai
WOS记录号WOS:000308856200068
引用统计
被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.bjmu.edu.cn/handle/400002259/61457
专题北京大学口腔医学院_口腔颌面外科
作者单位1.E China Univ Sci & Technol, Minist Educ, Key Lab Ultrafine Mat, Shanghai 200237, Peoples R China
2.Peking Univ, Dept Oral & Maxillofacial Surg, Sch & Hosp Stomatol, Beijing 100081, Peoples R China
3.Peking Univ, Lab Interdisciplinary Studies, Sch & Hosp Stomatol, Beijing 100081, Peoples R China
4.Peking Univ, Acad Adv Interdisciplinary Studies, Ctr Biomed Mat & Tissue Engn, Beijing 100871, Peoples R China
推荐引用方式
GB/T 7714
Wang, Chengjie,Zhang, Yifei,Wei, Jie,et al. Effects of Different pH Conditions on Enamel Erosion Repair by Nano Fluorapatite Pastes[J]. JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY,2012,12(9):7346-7353.
APA Wang, Chengjie,Zhang, Yifei,Wei, Jie,&Wei, Shicheng.(2012).Effects of Different pH Conditions on Enamel Erosion Repair by Nano Fluorapatite Pastes.JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY,12(9),7346-7353.
MLA Wang, Chengjie,et al."Effects of Different pH Conditions on Enamel Erosion Repair by Nano Fluorapatite Pastes".JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 12.9(2012):7346-7353.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Wang, Chengjie]的文章
[Zhang, Yifei]的文章
[Wei, Jie]的文章
百度学术
百度学术中相似的文章
[Wang, Chengjie]的文章
[Zhang, Yifei]的文章
[Wei, Jie]的文章
必应学术
必应学术中相似的文章
[Wang, Chengjie]的文章
[Zhang, Yifei]的文章
[Wei, Jie]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。