Evaluation of bacterial adhesion on machined titanium, osseotite® and nanotite® discs

Ruggero Rodriguez Y Baena, Carla Renata Arciola, Laura Selan, Rosalia Battaglia, Marcello Imbriani, Silvana Rizzo, Livia Visai

Research output: Contribution to journalArticlepeer-review


Purpose: Bacterial adhesion and colonization play a crucial function in the pathogenesis of periimplant tissue infection, which is considered the main cause of fixture loss. The aim of this study is to evaluate the differences in bacterial adhesion between a machined titanium surface, a double acid etched surface (Osseotite®) and an Osseotite surface with Nanometer-scale Discrete Crystalline Deposition (DCD™) of calcium phosphate (CaP)(Nanotite®). Methods: Surface roughness properties of each sample were determined by a laser profilometer and scanning electron microscopy (SEM) observation. Bacterial adhesion on machined, Osseotite®, and Nanotite® discs were performed using the following bacterial strains: Streptococcus mutans CCUG 35176, Streptococcus sanguis CCUG 17826, Streptococcus salivarius CCUG 11878, Actinobacillus actinomycetecomitans CCUG 37002, Porphyromonas gingivalis CCUG 2521. The assessment of bacterial adhesion was performed by comparing two methods: Total Viable Count (TVC) estimation and Confocal Laser Scanning Microscopic (CSLM) studies. Results: The surface roughness parameter increased as follows: machined

Original languageEnglish
Pages (from-to)754-761
Number of pages8
JournalInternational Journal of Artificial Organs
Issue number10
Publication statusPublished - 2012


  • Bacterial adhesion
  • Surface roughness
  • Titanium

ASJC Scopus subject areas

  • Biomaterials
  • Biomedical Engineering
  • Bioengineering
  • Medicine (miscellaneous)


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