Several foods have been shown to contain natural components (especially polyphenols) which display anti-adhesive properties against Streptococcus mutans, the aetiological agent responsible for dental crown caries, as well as inhibition of glucosyltransferases, which are the S. mutans enzymes involved in the synthesis of an adherent, water-insoluble glucan from sucrose. Other studies have demons...

conclusions similar to previous studies, this study could not show the superiority of electric toothbrush over manual in plaque removal. after 72 hours, the mean of plaque index was greater in buccal than in lingual surface, which may be attributed to the natural cleansing action of the tongue. results the mean of plaque index was 2.13 ± 0.83 and 2.11 ± 1.01 in the manual and electric toothbrus...

This study evaluated, in vivo, the efficacy of a denture glazing material (Palaseal) in modifying plaque colonization of dentures. Ten subjects were selected and received maxillary temporary partial removable dentures, with complete acrylic palatal coverage. The right half of the fitting surface of the denture bases were glazed with Palaseal, whereas the other half was not glazed. One month aft...

The form, location, and distribution of fluorhydroxyapatite deposited in dental plaque by a urease-mediated mineral enrichment process have been studied by transmission electron microscopy. Artificial plaque was formed in terylene gauze in the mouth of one subject and immersed for five min four times per day in a mineral-enriching solution. Contralateral control plaque remained untreated. The e...

AIM To investigate the microbiome composition in Chinese patients with aggressive periodontitis (AgP), and to compare the similarity of bacterial profiles between AgP patients and their family members. MATERIAL AND METHODS Pooled subgingival plaque and saliva samples were collected from 10 AgP patients and 10 of their first-degree blood relatives with chronic periodontitis. DNA amplicons of t...

This study investigated the relationship of arginine deiminase (ADS) and urease activities with dental caries through a case-control study. ADS and urease activities were measured in dental smooth-surface supragingival plaque and whole saliva samples from 93 subjects, who were in three different groups: caries-free (n = 31), caries-active (n = 30), and caries-experienced (n = 32). ADS activity ...

Difficulties with in vivo studies of natural plaque and its complex, heterogeneous structure have led to development of laboratory biofilm plaque model systems. Technologies for their culture are outlined, and the rationale, strengths, and relative uses of two complementary approaches to microbial models with a focus on plaque biodiversity are analyzed. Construction of synthetic consortia biofi...

This study evaluated the role of periodontal pathogens in 50 hospitalized patients with hospital acquired pneumonia compared with 30 healthy controls. Specimens of oropharyngeal aspirate, dental plaque bronchoalveolar lavage and blood cultured 1 or more pathogens in around 80% of patients, predominatel Staphylococcus aureus, followed by coagulase-negative staphylococci, Streptococcus pneumonia...