Evaluation of bacterial adhesion of Streptococcus mutans on dental restorative materials

Lucio Montanaro, Davide Campoccia, Simona Rizzi, Maria Elena Donati, Lorenzo Breschi, Carlo Prati, Carla Renata Arciola

Research output: Contribution to journalArticlepeer-review


Bacterial adhesion to the surface of composite resins and other dental restorative materials is an important parameter in the aetiology of secondary caries formation. The aim of the present study was to investigate the adhesion of a Streptococcus mutans strain (ATCC 25175) on the surface of different restorative materials. The test materials examined included three flowable composites (Filtek Flow, Tetric Flow, and Arabesk Flow), three microhybrid composites (Clearfil APX, Solitaire 2, and Z250), two glass-ionomers (Fuji IX, Fuji IX fast), a compomer (F2000), an ormocer (Admira), and a control reference material (tissue culture grade, surface treated polystyrene). The adhesion tests were carried out in 24-well plates. Quantitative turbidimetric measurements were finally performed in order to indirectly evaluate the amount of bacteria retained on the material surface after in vitro exposure to the bacteria suspension. Under these conditions, with the exception of the Admira ormocer and the Fuji IX fast glass ionomer, which were found to be more adhesive, all the other material surfaces showed a similar susceptibility to bacterial adhesion, exhibiting values not significantly different than the reference polystyrene control. Furthermore, the release of fluoride from some of the test surfaces did not appear capable to reduce early bacterial adhesion.

Original languageEnglish
Pages (from-to)4457-4463
Number of pages7
Issue number18
Publication statusPublished - Aug 2004


  • Bacterial adherence
  • Compomers
  • Composite resins
  • Glass-ionomer cements
  • Restorative materials
  • Streptococcus mutans

ASJC Scopus subject areas

  • Biotechnology
  • Bioengineering
  • Biomedical Engineering


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