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Crystalline anatase-rich titanium can reduce adherence of oral streptococci.

Dorkhan, Marjan; Hall, Jan; Uvdal, Per LU ; Sandell, Anders; Svensäter, Gunnel and Davies, Julia (2014) In Biofouling 30(6). p.751-759
Abstract
Dental implant abutments that emerge through the mucosa are rapidly covered with a salivary protein pellicle to which bacteria bind, initiating biofilm formation. In this study, adherence of early colonizing streptococci, Streptococcus gordonii, Streptococcus oralis, Streptococcus mitis and Streptococcus sanguinis to two saliva-coated anodically oxidized surfaces was compared with that on commercially pure titanium (CpTi). Near edge X-ray absorption (NEXAFS) showed crystalline anatase was more pronounced on the anodically oxidized surfaces than on the CpTi. As revealed by fluorescence microscopy, a four-species mixture, as well as individual bacterial species, exhibited lower adherence after 2 h to the saliva-coated, anatase-rich surfaces... (More)
Dental implant abutments that emerge through the mucosa are rapidly covered with a salivary protein pellicle to which bacteria bind, initiating biofilm formation. In this study, adherence of early colonizing streptococci, Streptococcus gordonii, Streptococcus oralis, Streptococcus mitis and Streptococcus sanguinis to two saliva-coated anodically oxidized surfaces was compared with that on commercially pure titanium (CpTi). Near edge X-ray absorption (NEXAFS) showed crystalline anatase was more pronounced on the anodically oxidized surfaces than on the CpTi. As revealed by fluorescence microscopy, a four-species mixture, as well as individual bacterial species, exhibited lower adherence after 2 h to the saliva-coated, anatase-rich surfaces than to CpTi. Since wettability did not differ between the saliva-coated surfaces, differences in the concentration and/or configuration of salivary proteins on the anatase-rich surfaces may explain the reduced bacterial binding effect. Anatase-rich surfaces could thus contribute to reduced overall biofilm formation on dental implant abutments through diminished adherence of early colonizers. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Biofouling
volume
30
issue
6
pages
751 - 759
publisher
Taylor & Francis
external identifiers
  • pmid:24881929
  • wos:000337965600010
  • scopus:84902543687
ISSN
1029-2454
DOI
10.1080/08927014.2014.922962
language
English
LU publication?
yes
id
20c334c8-381b-4030-8b8c-836e0e26ff31 (old id 4529588)
date added to LUP
2014-07-08 13:44:48
date last changed
2017-05-07 03:01:50
@article{20c334c8-381b-4030-8b8c-836e0e26ff31,
  abstract     = {Dental implant abutments that emerge through the mucosa are rapidly covered with a salivary protein pellicle to which bacteria bind, initiating biofilm formation. In this study, adherence of early colonizing streptococci, Streptococcus gordonii, Streptococcus oralis, Streptococcus mitis and Streptococcus sanguinis to two saliva-coated anodically oxidized surfaces was compared with that on commercially pure titanium (CpTi). Near edge X-ray absorption (NEXAFS) showed crystalline anatase was more pronounced on the anodically oxidized surfaces than on the CpTi. As revealed by fluorescence microscopy, a four-species mixture, as well as individual bacterial species, exhibited lower adherence after 2 h to the saliva-coated, anatase-rich surfaces than to CpTi. Since wettability did not differ between the saliva-coated surfaces, differences in the concentration and/or configuration of salivary proteins on the anatase-rich surfaces may explain the reduced bacterial binding effect. Anatase-rich surfaces could thus contribute to reduced overall biofilm formation on dental implant abutments through diminished adherence of early colonizers.},
  author       = {Dorkhan, Marjan and Hall, Jan and Uvdal, Per and Sandell, Anders and Svensäter, Gunnel and Davies, Julia},
  issn         = {1029-2454},
  language     = {eng},
  number       = {6},
  pages        = {751--759},
  publisher    = {Taylor & Francis},
  series       = {Biofouling},
  title        = {Crystalline anatase-rich titanium can reduce adherence of oral streptococci.},
  url          = {http://dx.doi.org/10.1080/08927014.2014.922962},
  volume       = {30},
  year         = {2014},
}