Fogorvosi szemle, 2008 (101. évfolyam, 1-6. szám)
2008-06-01 / 3. szám
FOGORVOSI SZEMLE ■ 101. évf. 3. sz. 2008. 99 Dr. Gera I: The bacterial biofilm and the possibilities of chemical plaque control Literature review Most microorganisms in the oral cavity attach to surfaces and form matrix-embedded biofilms. Biofilms are structured and spatially organized, composed of consortia of interacting microorganisms. The properties of the mass of biofilm are different from that of the simple sum of the component species. The older the plaque (biofilm) is the more structurally organized and become more resistant to environmental attacks. The bacterial community favors the growth of obligatory anaerobic microorganisms. The most effective means of the elimination of matured biofilm is the mechanical disruption of the interbacterial protective matrix and removal of bacterial colonies. The antiseptic agents are primarily effective in the prevention of biofilm formation and anticipation of the maturation of the bacterial plaque. Bacteria in matured biofilms are less susceptible to antimicrobial agents because several physical and biological factors protect the bacterial consortia. To kill bacteria in a matured, well organized biofilm, significantly higher concentration and longer exposition are required. Antiseptic mouthrinses in a conventional dose and time can only reach the superficial bacteria while the bacteria in the depth of the biofilm remains intact. Therefore, the efficacy of any antiseptic mouthwash depends not just on its microbicidal properties demonstrated in vitro, but also on its ability to penetrate the organized biofilm on the teeth. Recent studies have demonstrated that both bisbiguanid compounds and essential oils are capable of penetrating the biofilm, and reduce established plaque and gingivitis. The essential oils showed high penetrability and were more effective on organized biofilm than stannous fluorides ortriclosan copolymer antiplaque agents. Key worlds: bacterial biofilm, chemical plaque control, biofilm penetration VII. Danubius Nemzetközi és XII. Magyar Nemzeti Arc-, Állcsont és Szájsebészeti Kongresszus Dátum: 2008. október 16-2008. október 18. Helyszín: Marosvásárhely (Románia), Kulturális Palota Fő témák: Traumatológia; Onkológia; Dento-alveoláris sebészet Hivatalos nyelv: angol Jelentkezési határidő: 2008. augusztus 15. Szállásfoglalás: Asszisztencia Congress Bureau 1136 Budapest, Hegedűs Gyula u. 20. Tel: 00 36 1 350-18-54 Dr. Mátrai Nándor Kongresszusi titkárság: Prof. Dr. Kovács Dezső Universitatea de Medicina si Farmacie Tirgu Mures Clinica Chirurgie Oral si Maxillo Faciala 4300 Tirgu Mures B-dul 1918 nr 40 Tel.: 00 40 265250537 E-mail: kodent@rdslink.ro Prof. Dr. Szabó György Semmelweis Egyetem Arc-, Állcsont Szájsebészeti és Fogászati Klinika 1085 Budapest, Mária u. 52. Tel.: 00 36 1 266 2193 E-mail: szabo@fok.usn.hu
