ISSN:
1013-9826
Quelle:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Thema:
Maschinenbau
Notizen:
Circumambient tissues infection is a common complication of implanted percutaneousand permucosal devices (PDs). In order to counter the infection, the titanium abutment surface ofPDs was modified to achieve antibacterial and antiadhesive activities. Titanium discs wereimmersed into hydroxyapatite (HA) sol containing different mass fraction silver and thermallytreated to get modified discs. The modified discs become more smoother and get crystal HAcoatings containing silver. Silver ion release test demonstrate the release rate is very slow and thecoating is a reservoir of silver. The antibacterial and antiadhesive effects of modified discs onStaphylococcus aureus and Porphyromonas gingivalis were evaluated. Modified titanium discs withsilver significantly inhibited the growth of these two bacteria compared with both the polishedtitanium discs control and modified titanium discs without silver. And titanium discs modified withmore silver have higher antibacterial activity and less bacteria adhesion in this study. These findingsindicate that titanium surface modified with the HA sol-gel containing silver could achieveantibacterial and antiadhesive activities, and the abutments of PDs are promising to be modified bythis method
Materialart:
Digitale Medien
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.330-332.653.pdf
