منابع مشابه
Dental plaque as a microbial biofilm.
New technologies have provided novel insights into how dental plaque functions as a biofilm. Confocal microscopy has confirmed that plaque has an open architecture similar to other biofilms, with channels and voids. Gradients develop in areas of dense biomass over short distances in key parameters that influence microbial growth and distribution. Bacteria exhibit an altered pattern of gene expr...
متن کاملMicrobial profiling of dental plaque from mechanically ventilated patients
Micro-organisms isolated from the oral cavity may translocate to the lower airways during mechanical ventilation (MV) leading to ventilator-associated pneumonia (VAP). Changes within the dental plaque microbiome during MV have been documented previously, primarily using culture-based techniques. The aim of this study was to use community profiling by high throughput sequencing to comprehensivel...
متن کاملUrease and Dental Plaque Microbial Profiles in Children
OBJECTIVE Urease enzymes produced by oral bacteria generate ammonia, which can have a significant impact on the oral ecology and, consequently, on oral health. To evaluate the relationship of urease with dental plaque microbial profiles in children as it relates to dental caries, and to identify the main contributors to this activity. METHODS 82 supragingival plaque samples were collected fro...
متن کاملHuman oral microbial ecology and dental caries and periodontal diseases.
In the human oral cavity, which is an open growth system, bacteria must first adhere to a surface in order to be able to colonize. Ability to colonize a non-shedding tooth surface is necessary prior to any odontopathic or periodontopathic process. Complex microbe-host relationships occur and must be studied before the commensal-to-pathogenic nature of the human indigenous oral flora can be unde...
متن کاملMicrobial Ecology Exemplifies Building Ecology
Recent advances in molecular methods have dramatically improved knowledge of the microbial communities and their diversity in indoor environments. We have retrieved over 150 references with results of indoor microbial investigations and environmental factors. Representative papers are summarized here. The results show that buildings are complex, ecosystem-like, and that collaboration between mi...
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ژورنال
عنوان ژورنال: Kagaku To Seibutsu
سال: 1987
ISSN: 0453-073X,1883-6852
DOI: 10.1271/kagakutoseibutsu1962.25.785