نتایج جستجو برای: oral bacteria

تعداد نتایج: 425901  

Journal: :Nature Reviews Gastroenterology & Hepatology 2017

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه اصفهان - دانشکده زبانهای خارجی 1388

the purpose of the present study was to investigate the effect of task-based instruction of vocabulary on the receptive and oral productive acquisition of english vocabulary and compare the results with those obtained from the traditional method. the method and procedure applied in this study was as follows: after the implementation of opt, a group of sixty female students were chosen. the stu...

جعفری, مرضیه, ربیعی, مریم, صادری, حوریه, صادقی, رخساره,

Background: Many studies have shown that periodontal pathogens are emerging as a risk factor for preterm delivery and low birth weight, but there are few studies about the relationship between other oral bacteria and pregnancy outcomes. The aim of the present study was to determine the relationship between salivary bacteria and pregnancy outcomes. Methods: This cohort study was performed on 30...

Journal: :American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics 2009
Peter Pellegrini Rebecca Sauerwein Tyler Finlayson Jennifer McLeod David A Covell Tom Maier Curtis A Machida

INTRODUCTION Enamel decalcification is a common problem in orthodontics. The objectives of this randomized clinical study were to enumerate and compare plaque bacteria surrounding 2 bracket types, self-ligating (SL) vs elastomeric ligating (E), and to determine whether adenosine triphosphate (ATP)-driven bioluminescence could be used for rapid assessment of bacterial load in plaque. METHODS P...

2014
Embriette R. Hyde Fernando Andrade Zalman Vaksman Kavitha Parthasarathy Hong Jiang Deepa K. Parthasarathy Ashley C. Torregrossa Gena Tribble Heidi B. Kaplan Joseph F. Petrosino Nathan S. Bryan

The microbiota of the human lower intestinal tract helps maintain healthy host physiology, for example through nutrient acquisition and bile acid recycling, but specific positive contributions of the oral microbiota to host health are not well established. Nitric oxide (NO) homeostasis is crucial to mammalian physiology. The recently described entero-salivary nitrate-nitrite-nitric oxide pathwa...

Journal: :Applied and environmental microbiology 2015
Hayley Thompson Alexandra Rybalka Rebecca Moazzez Floyd E Dewhirst William G Wade

Around a third of oral bacteria cannot be grown using conventional bacteriological culture media. Community profiling targeting 16S rRNA and shotgun metagenomics methods have proved valuable in revealing the complexity of the oral bacterial community. Studies investigating the role of oral bacteria in health and disease require phenotypic characterizations that are possible only with live cultu...

Journal: :Critical Reviews in Oral Biology & Medicine 1998

Journal: :Journal of Dhaka Medical College 2015

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