期刊
DENTAL MATERIALS
卷 21, 期 8, 页码 756-760出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.dental.2005.01.010
关键词
bacteria; dental implant; osseointegration; titanium oxide; sterilization
Objectives. Commercial titanium dental implants are coated with nanostructured TiO2. The aim of the research reported in this paper was to assess whether the TiO2 at the surface of a dental implant is sufficiently photoactive to eradicate bacteria when illumined with low intensity tight. Methods. The photoactivity of dental implants was established by studies of the photoenhanced decomposition of Rhodamine B. In vitro studies to establish the influence of irradiating with UV light an implant that is immersed in a solution containing Escherichia Coli were performed. , Results. It was demonstrated that under Low UV intensity irradiation, 49 mu W cm(2) bacteria are killed at a rate of approximately 650 million per of implant per minute. Significance. The results indicate that illumination of dental implants with UV light may be a suitable treatment for periimplantitis. (c) 2005 Academy of Dental Materials. Published by Elsevier Ltd. All rights reserved.
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