نتایج جستجو برای: oral biofilm

تعداد نتایج: 274456  

Journal: :Antimicrobial agents and chemotherapy 2008
Doron Steinberg Daniel Moreinos John Featherstone Moshe Shemesh Osnat Feuerstein

Oral biofilms are associated with the most common infections of the oral cavity. Bacteria embedded in the biofilms are less sensitive to antibacterial agents than planktonic bacteria are. Recently, an antibacterial synergic effect of noncoherent blue light and hydrogen peroxide (H(2)O(2)) on planktonic Streptococcus mutans was demonstrated. In this study, we tested the effect of a combination o...

2016
Annie Karoline Bezerra de Medeiros Laércio Almeida de Melo Rivanaldo Adriano Holanda Alves Gustavo Augusto Seabra Barbosa Kenio Costa de Lima Adriana da Fonte Porto Carreiro

Background Combating biofilm-dependent oral infections involves the use of synthetic antibiotics, which are often associated with bacterial resistance and adverse effects. As a result, herbs such as cranberry have emerged as an alternative treatment. The aim of this study was to evaluate, through an integrative literature review, the effectiveness of cranberry extract on cultures and biofilms o...

Journal: :Infection and immunity 2011
Xiaobo Liang Yi-Ywan M Chen Teresa Ruiz Hui Wu

Dental biofilm formation is critical for maintaining the healthy microbial ecology of the oral cavity. Streptococci are predominant bacterial species in the oral cavity and play important roles in the initiation of plaque formation. In this study, we identified a new cell surface protein, BapA1, from Streptococcus parasanguinis FW213 and determined that BapA1 is critical for biofilm formation. ...

Journal: :World Journal of Biology Pharmacy and Health Sciences 2022

Medicinal plants which showed antimicrobial activity against oral pathogens and inhibited biofilm formation have the capability of eliminating microbes preventing many infections. In current review, PubMed, Web Science, Science Direct, Researchgate, Academia.edu Scopus were searched to determine medicinal with antibacterial effects common pathogens.

2016
Christian Spengler Nicolas Thewes Friederike Nolle Thomas Faidt Natalia Umanskaya Matthias Hannig Markus Bischoff Karin Jacobs

Streptococcus mutans cells form robust biofilms on human teeth and are strongly related to caries incidents. Hence, understanding the adhesion of S. mutans in the human oral cavity is of major interest for preventive dentistry. In this study, we report on AFM-based single cell force spectroscopy measurements of S. mutans cells to hydroxyapatite surfaces. We observe a significant increase of adh...

2011
Scott Cairns John Gilbert Thomas Samuel James Hooper Matthew Peter Wise Paul John Frost Melanie Julia Wilson Michael Alexander Oxenham Lewis David Wynne Williams

BACKGROUND Ventilator-associated pneumonia is the most prevalent acquired infection of patients on intensive care units and is associated with considerable morbidity and mortality. Evidence suggests that an improved understanding of the composition of the biofilm communities that form on endotracheal tubes may result in the development of improved preventative strategies for ventilator-associat...

2014
Salete MF Bersan Livia CC Galvão Vivian FF Goes Adilson Sartoratto Glyn M Figueira Vera LG Rehder Severino M Alencar Renata MT Duarte Pedro L Rosalen Marta CT Duarte

BACKGROUND Essential oils (EO) obtained from twenty medicinal and aromatic plants were evaluated for their antimicrobial activity against the oral pathogens Candida albicans, Fusobacterium nucleatum, Porphyromonas gingivalis, Streptococcus sanguis and Streptococcus mitis. METHODS The antimicrobial activity of the EO was evaluates by microdilution method determining Minimal Inhibitory Concentr...

2017
Damla Aksit Bıcak Serap Akyuz Binnur Kıratlı Merve Usta Nafiye Urganci Burcin Alev Aysen Yarat Fikrettin Sahin

BACKGROUND The oral cavity can be an extra-gastric reservoir for Helicobacter pylori (H.pylori). This can play a role in the pathogenesis of halitosis, glossitis, recurrent aphthous stomatitis, and dental caries. The present study was conducted to detect the presence of H.pylori within the dental biofilm and in saliva samples collected from children suffering from dyspepsia and children without...

2014
David A. Head Phil D. Marsh Deirdre A. Devine

Dental caries or tooth decay is a prevalent global disease whose causative agent is the oral biofilm known as plaque. According to the ecological plaque hypothesis, this biofilm becomes pathogenic when external challenges drive it towards a state with a high proportion of acid-producing bacteria. Determining which factors control biofilm composition is therefore desirable when developing novel ...

2017
Yan Tu Xiaolong Lin Yadong Chen Yuan Wang Na Zhou Hui Chen

BACKGROUND Caries and periodontal diseases are caused by the biofilm formed by caries- and periodontal disease-related bacteria. Specific biofilms could be formed on different filling materials in oral cavity. Thus, to explore the inhibition effect of restorative filling materials on biofilm formation is of great significance in the treatment of caries and periodontal disease. MATERIAL AND METH...

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