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Antibacterial activity of Silver-Hydroxyapatite/ Titania Nanocomposite Coating on Titanium against Oral Bacteria

文献类型: 会议论文

第一作者: Anchun Mo

作者: Anchun Mo 1 ; Wei Xu 2 ; Suqin Xian 3 ; Yubao Li; Shi Bai;

作者机构: 1.West China College of Stomatology, Sichuan University, Chengdu 610041, China

2.Arrail-Dental, Shanghai, 200122, China

3.Research Center for Nano-biomaterials, Sichuan University, Chengdu 610064, China

关键词: silver;hydroxyapatite;titania;antibacterial coating;titanium;oral bactera

会议名称: Bioceramics vol.19 pt.1

主办单位:

页码: 455,458-

摘要: This study was focused on evaluating the bactericidal and anti-adhesive efficacy of silver-hydroxyapatite/ titania nanocomposites (nAg-HA/TiO_2) coating on titanium against oral bacteria. Porphyromonas gingivalis, Prevotella intermedia and Fusohacterium nudeatum and Streptococcus mutans were used. Antibacterial activity of nAg-HA/TiO_2 coating was investigated quantitatively using film applicator coating method and titanium plates incubated with bacteria were prepared for SEM to observe the adherence of oral bacteria. The viability of each type of bacteria on the antibacterial film was suppressed to about 10% after anaerobic incubation for 3 hours. Image of SEM demonstrated that bacteria on sandblasting surfaces were relatively confluent whilst on coated surfaces fewer bacteria were observed. Adherence of bacteria on nAg-HA / TiO_2-coated surfaces compared with uncoated surfaces was remarkably decreased.

分类号: [ "R318.08" , "R318.08"]

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