The aim of this study was to investigate the impact of early colonizing species on the structure and the composition of the bacterial community developing in a subgingival 10-species biofilm model system. The model included Streptococcus oralis, Streptococcus anginosus, Actinomycesoris, Fusobacterium nucleatum subsp. nucleatum, Veillonella dispar, Campylobacter rectus, Prevotella intermedia, Po...

Salivary amylase binds specifically to a number of oral streptococcal species. This interaction may play an important role in dental plaque formation. Recently, a 585-bp gene was cloned and sequenced from Streptococcus gordonii Challis encoding a 20.5-kDa amylase-binding protein (AbpA). The goal of this study was to determine if related genes are present in other species of oral streptococci. B...

A 55-year-old man without a significant past medical history presented to an emergency department with the symptoms of right neck pain for 2 weeks and high-grade fever up to 38 °C for 10 days, followed by acute onset of dyspnea on exertion. On admission, computed tomography (CT) scan with contrast revealed a 4cm-diameter of retropharyngeal abscess (Fig. 1A), right internal jugular vein thrombos...