title: Bioactive glass S53P4 in repair of septal perforations and its interactions with the respiratory infection-associated microorganisms Haemophilus influenzae and Streptococcus pneumoniae.
abstract: Interpositional grafts between mucoperiosteal flaps are commonly used in the repair of septal perforations. We studied the use of bioactive glass (BAG) S53P4 as an interpositional graft in 11 patients suffering from septal perforations. In aqueous environments, ions are released from the BAG and the pH rises in its vicinity, both of which may influence the growth and adhesion of microorganisms. Thus, we also studied the effects of the BAG S53P4 as granules or discs on the respiratory infection-associated microorganisms Haemophilus influenzae and Streptococcus pneumoniae. Growth inhibition was studied using an agar plate test and adhesion was analyzed both with and without serum precoating of the BAG S53P4. The perforations were successfully closed in 10 of 11 patients. One patient had a near total septum perforation, which could not be closed. No BAG-associated infections were seen during the follow-up. The BAG S53P4 did not show any clear growth inhibition of the microorganisms, which showed low adhesion to the material. Serum precoating increased the adsorption. Thus, uncoated BAG S53P4 seems to be a good graft in the repair of septal perforations.
authors.affiliation: Institute of Dentistry, University of Turku, FIN-20520 Turku, Finland.patricia.stoor@hus.fi
authors.forename: P
authors.initials: P
authors.lastname: Stoor
authors.forename: E
authors.initials: E
authors.lastname: Söderling
authors.forename: R
authors.initials: R
authors.lastname: Grénman
mesh_terms: D000328:Adult; D000368:Aged; D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D001422:Bacterial Adhesion / Q000187:drug effects; D001672:Biocompatible Materials / Q000494:pharmacology*; D001769:Blood; D020099:Coated Materials, Biocompatible / Q000494:pharmacology; D005260:Female; D005898:Glass; D006193:Haemophilus influenzae / Q000187:drug effects*; D006801:Humans; D006863:Hydrogen-Ion Concentration; D008297:Male; D008422:Materials Testing; D008826:Microbial Sensitivity Tests; D008875:Middle Aged; D009300:Nasal Septum / Q000293:injuries / Q000601:surgery*; D019736:Prostheses and Implants; D013045:Species Specificity; D013296:Streptococcus pneumoniae / Q000187:drug effects*; D013524:Surgical Flaps; D013530:Surgical Wound Infection / Q000517:prevention & control*; D016896:Treatment Outcome
chemical_list: D000900:Anti-Bacterial Agents; D001672:Biocompatible Materials; D020099:Coated Materials, Biocompatible; C403922:bioactive glass S53P4