Search Results for biofilm

... Abstract The pH value of a biofilm influences the pathogenesis and therapy of oral diseases such as caries and periodontitis. This study aimed to investigate the influence of different initial pH values on the microbial composition, bacterial counts, metabolic activity, and quantity of three...

... Abstract More than 700 microbial species inhabit the complex environment of the oral cavity. For years microorganisms have been studied in pure cultures, a highly artificial situation because microorganisms in natural habitats grow as complex ecologies, termed biofilms. These resemble...

... Abstract When analyzing the activity of antimicrobial agents, it should be considered that microorganisms mainly occur in biofilms. Data obtained for planktonic bacteria cannot be transferred non-critically to biofilms. Biofilm models should consider both the relevant microorganisms...

... Abstract The formation of a physiological biofilm cannot be avoided under normal circumstances. However, the consequences of a supragingivally located biofilm, such as caries, gingivitis and, as a further effect, periodontitis, are relatively easy to avoid. The simplest and most common method...

... Abstract The intraoral biofilm requires mechanical removal due to its physical properties. When exposed to the biofilm, interdental areas need special devices to be used. The most effective ones and the first choice are interdental brushes. However, they may not be adequate in the case of very...

.... mutans and S. sobrinus , synthesize the metabolite citrulline and increase the pH of the environment. In defined multispecies biofilms consisting of ADS-positive and ADS-negative streptococci, supplementation with 1.5% arginine suppressed the growth of ADS-negative by favoring ADS-positive streptococci...

... disease periodontitis. The main focus of such measurements lies on an optimal biofilm management which can be divided into professional biofilm management and home care measurements. Since home care mechanical measurements such as toothbrushing and interdental cleaning are often insufficient...

..., the focus of periodontal treatment was on the removal of the supposed cause of periodontal disease, the supra- and supragingival calculus and “infected” root cementum. The findings on the importance of biofilm<A51_FootRef>1</A51_FootRef> (plaque) and the endogenous responses to biofilm...

... Abstract Dental biofilms can cause major oral diseases like gingivitis, periodontitis, and caries. Orthodontic appliances promote supra- and subgingival biofilm accumulation, alter the oral microbiome, and hamper oral hygiene. Orthodontic treatment can be associated with adverse effects...

... Abstract The activity of mouthwash ingredients used in daily oral care (chlorhexidine digluconate, benzalkonium chloride, povidone iodine solution, tea tree oil) and of nystatin was evaluated not only on planktonic Candida albicans or C. glabrata , but also on the inhibition of biofilm...

... Abstract As the thick biofilm in the presence of fermentable carbohydrates is the main etiological factor of dental caries, the frequent and systematic removal of this colony by means of an effective biofilm control should result in the prevention of caries lesions or in the arrest of the local...

... Abstract Periodontitis is an inflammatory disease of the oral cavity initiated by a microbial biofilm (or ‘dental plaque’). Subgingival biofilms in periodontal pockets are not easily analyzed without the loss of structural integrity. These subgingival plaques are structured communities...

... Abstract The human subgingival environment is a complex environmental niche where microorganisms from the three domains of life meet to form diverse biofilm communities that exist in close proximity to the host. Bacteria constitute the most abundant, diverse and ultimately well-studied...

... Abstract This chapter addresses the host responses to the microbial biofilm that constitutes the subgingival dental plaque. The host response to infection draws upon the innate, inflammatory and adaptive immune systems, whose role is to provide the appropriate response to the offending...

... Abstract The subgingival dental plaque is a microbial biofilm consisting of highly variable bacterial microcolonies embedded within a self-produced matrix of extracellular polymeric substance. In contrast to microorganisms growing in a planktonic state, the inhabitants of a biofilm...

... Abstract Biofilms are microbial communities quite different from planktonic cells and most ofcommon microbiological concepts had to be updated in recent years. The peculiar capacity toresist to disinfectants and antibiotics results in biofilms being a public health problem mainlywhen modern...

... Abstract In reality, most microorganisms are not free floating. They exist in biofilms, a community of many of them from the same species or from other genera and attached to surfaces. Microorganisms undergo a transition from free-floating, planktonic microorganisms to a sessile, surface...