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Crystalline anatase-rich titanium can reduce adherence of oral streptococci.
Dorkhan, Marjan; Hall, Jan; Uvdal, Per; Sandell, Anders; Svensäter, Gunnel; Davies, Julia R.
Afiliación
  • Dorkhan M; a Department of Oral Biology, Faculty of Odontology , Malmö University , SE-205 06, Malmö , Sweden.
Biofouling ; 30(6): 751-9, 2014.
Article en En | MEDLINE | ID: mdl-24881929
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.
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Texto completo: 1 Bases de datos: MEDLINE Asunto principal: Streptococcus / Titanio / Adhesión Bacteriana / Implantes Dentales / Pilares Dentales / Biopelículas Límite: Humans Idioma: En Revista: Biofouling Asunto de la revista: BIOLOGIA Año: 2014 Tipo del documento: Article País de afiliación: Suecia

Texto completo: 1 Bases de datos: MEDLINE Asunto principal: Streptococcus / Titanio / Adhesión Bacteriana / Implantes Dentales / Pilares Dentales / Biopelículas Límite: Humans Idioma: En Revista: Biofouling Asunto de la revista: BIOLOGIA Año: 2014 Tipo del documento: Article País de afiliación: Suecia