title: Report: Discussion on the development of nano Ag/TiO2 coating bracket and its antibacterial property and biocompatibility in orthodontic treatment.
abstract: This paper aims to explore the antibacterial property of nano Ag/TiO2 coating bracket for the common bacteria in oral cavity, and discuss its biocompatibility. Micro morphology in the surface of nano Ag/TiO2 coating bracket was detected by scanning electron microscope (SEM), and surface roughness of ordinary mental bracket, nano TiO2 coating bracket and nano Ag/TiO2 coating bracket were measured. First, antibacterial property of nano Ag/TiO2 coating bracket on the common bacteria in oral cavity was studied by sticking membrane method. Secondly, bonding strength of nano TiO2 coating and nano Ag/TiO2 coating bracket in groups were detected by scratching test. The result showed that, the synthetic nano Ag/TiO2 coating was nanogranular films with rigorous organizational structure, presenting as smooth and clean surface, and antibacterial rate of nano Ag/TiO2 coating for the common bacteria in oral cavity for 20 min was more than 79% in the dark. All the findings suggested that, nano Ag/TiO2 coating bracket not only has antibacterial effect but also has good biocompatibility, therefore, it can satisfy the clinical request of orthodontic treatment.
authors: Orthodontics Department, Binzhou Medical University Hospital, Binzhou, Shandong, China.
authors: Ronghe
authors: R
authors: Zhang
authors: Orthodontics Department, Binzhou Medical University Hospital, Binzhou, Shandong, China.
authors: Weiwei
authors: W
authors: Zhang
authors: Orthodontics Department, Binzhou Medical University Hospital, Binzhou, Shandong, China.
authors: Xueyan
authors: X
authors: Bai
authors: Postgraduate Student, Binzhou Medical University, Binzhou, Shandong, China.
authors: Xiaotong
authors: X
authors: Song
authors: Department of Stomatology, Binzhou Medical University Hospital, Binzhou, Shandong, China.
authors: Chunyan
authors: C
authors: Wang
authors: Orthodontics Department, Binzhou Medical University Hospital, Binzhou, Shandong, China.
authors: Xinxin
authors: X
authors: Gao
authors: Orthodontics Department, Binzhou Medical University Hospital, Binzhou, Shandong, China.
authors: Xubiao
authors: X
authors: Tian
authors: Orthodontics Department, Binzhou Medical University Hospital, Binzhou, Shandong, China.
authors: Fengzhen
authors: F
authors: Liu
mesh_terms: D000900:Anti-Bacterial Agents / Q000737:chemistry / Q000494:pharmacology*; D001419:Bacteria / Q000187:drug effects* / Q000254:growth & development; D020099:Coated Materials, Biocompatible; D015169:Colony Count, Microbial; D053768:Metal Nanoparticles; D008855:Microscopy, Electron, Scanning; D009055:Mouth / Q000382:microbiology*; D016382:Orthodontic Appliance Design; D016910:Orthodontic Brackets; D055668:Photochemical Processes; D018030:Silver Compounds / Q000737:chemistry / Q000494:pharmacology*; D013499:Surface Properties; D013997:Time Factors; D014025:Titanium / Q000737:chemistry / Q000494:pharmacology*
chemical_list: D000900:Anti-Bacterial Agents; D020099:Coated Materials, Biocompatible; D018030:Silver Compounds; C009495:titanium dioxide; D014025:Titanium