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Updated: Jun 16, 2026

Oral Biofilm Formation on Different Materials for Dental Implants
Published on: June 24, 2018
Adhesion of respiratory-infection-associated microorganisms on degradable thermoplastic composites
Teemu Tirri1, Eva Söderling, Minna Malin
1Department of Prosthetic Dentistry and Biomaterials Science, Institute of Dentistry, University of Turku, 20520 Turku, Finland.
Abstract:
The purpose of this study was to evaluate bacterial adhesion and early colonization on a composite consisting of bioactive glass (BAG) particles and copolymer of epsilon-caprolactone/D,L-lactide. Materials were incubated with suspensions of both type strains and clinical isolates of Streptococcus pneumoniae, Haemophilus influenzae, and Pseudomonas aeruginosa for 30 minutes (adhesion) and 4 hours (colonization). Clear differences exist in the microorganisms' ability to adhere on the experimental materials. However, the presence of BAG particles does not inhibit bacterial adhesion, but early colonization of the materials with P. aeruginosa was inhibited by the addition of 90-315 mum BAG particles.
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