title: [Antibacterial actions of denture base resin on oral bacteria].
abstract: Antibacterial action of various denture base resins on thirteen species of bacteria were studied in vitro. Antibacterial effect of 5% tannin-fluoride preparation, 5% tannic acid and 5% chlorhexidine added to resins on these thirteen bacterial species were also investigated using heat-curing denture base resins. Fresh microwave-curing resin and pour-type resin each showed an antibacterial action on one bacterial strain. Fresh self-curing resins had antibacterial actions on several bacterial strains. However, after storage in water at 37 degrees C for one week, antibacterial action of microwave-curing and pour-type resin were diminished and self-curing resins partially lost their antibacterial actions. Denture base resin containing tannin-fluoride preparation or tannic acid showed an antibacterial effect on one bacterial strain. On the other hand, denture base resin containing chlorhexidine had an antibacterial action on eleven bacterial strains. However, color and mechanical properties of the drug-containing resins were not satisfactory.
authors.forename: M
authors.initials: M
authors.lastname: Yamauchi
authors.forename: A
authors.initials: A
authors.lastname: Nigauri
authors.forename: K
authors.initials: K
authors.lastname: Yamamoto
authors.forename: G
authors.initials: G
authors.lastname: Nakazato
authors.forename: J
authors.initials: J
authors.lastname: Kawano
authors.forename: K
authors.initials: K
authors.lastname: Kimura
mesh_terms: D001419:Bacteria / Q000187:drug effects; D002710:Chlorhexidine / Q000494:pharmacology; D003819:Denture Bases; D047348:Hydrolyzable Tannins / Q000494:pharmacology; D009055:Mouth / Q000382:microbiology; D012117:Resins, Synthetic
chemical_list: D047348:Hydrolyzable Tannins; D012117:Resins, Synthetic; D002710:Chlorhexidine