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The bacterial biofilm and the possibilities of chemical plaque control. Literature review
Gera, István
Fogorvosi szemle, 2008-06, Vol.101 (3), p.91-99
Hungary
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Título:
The bacterial biofilm and the possibilities of chemical plaque control. Literature review
Autor:
Gera, István
Assuntos:
Anti-Bacterial Agents - administration & dosage
;
Anti-Bacterial Agents - pharmacology
;
Bacterial Adhesion -
drug
effects
;
Biguanides - administration & dosage
;
Biguanides - pharmacology
;
Biofilms
-
drug
effects
;
Dental Plaque -
drug
therapy
;
Dental Plaque - microbiology
;
Dental Plaque - prevention & control
;
Dentistry
;
Gingivitis -
drug
therapy
;
Gingivitis - microbiology
;
Humans
;
Oils, Volatile - administration & dosage
;
Oils, Volatile - pharmacology
É parte de:
Fogorvosi szemle, 2008-06, Vol.101 (3), p.91-99
Notas:
ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
ObjectType-Review-3
content type line 23
Descrição:
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 or triclosan copolymer antiplaque agents.
Editor:
Hungary
Idioma:
Húngaro
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