Since dental plaque reservoirs of fluoride (F), calcium (Ca) and inorganic phosphorus (Pi) are susceptible to decreases in pH, this in situ crossover study was conducted to test the hypothesis that the low concentration of these ions in plaque, formed in the presence of sucrose, could be attributed merely to the fermentation of this sugar. Eleven volunteers wore palatal appliances containing 6 ...

In contemporary dental practice, the role of dental plaque fermentation in the dental caries disease process is well understood, but difficult to assay for and to demonstrate to patients as an educational and motivational tool. This paper provides an overview of the current concepts of dental plaque fermentation with reference to the health/unhealthy biofilm concept of dental plaque. It explain...

Ureolysis by Streptococcus salivarius is critical for pH homeostasis of dental plaque and prevention of dental caries. The expression of S. salivarius urease is induced by acidic pH and carbohydrate excess. The differential expression is mainly controlled at the transcriptional level from the promoter 5' to ureI (p ureI ). Our previous study demonstrates that CodY represses p ureI by binding to...

Streptococcus mutans, the major etiological agent in human dental caries, is capable of forming a biofilm, or dental plaque, on the tooth surface (Loesche, 1986; Tanzer et al., 2001). S. mutans generates large amounts of acid within dental plaque from fermentable dietary carbohydrates. During meals, the ingestion of carbohydrates causes the pH of the dental plaque to fall below 4.0. Acid accumu...

BACKGROUND Dental plaque formed on tooth surfaces is a complex ecosystem composed of diverse oral bacteria and salivary components. Accumulation of dental plaque is a risk factor for dental caries and periodontal diseases. L-arginine has been reported to decrease the risk for dental caries by elevating plaque pH through the activity of arginine deiminase in oral bacteria. Here we evaluated the ...

the effect­ of education based on health belief model (hbm) in decreasing dental plaque index among first grade of middle- school girl students in hamadan    sohrabivafa m [1] , moeini b [2] *, hazavehei smm [3] , soltanian ar [4] , rezaei l [5]     received: 12 aug , 2013 accepted: 23 sep , 2013     abstract   background & aims : oral­-­dental health behaviors education to students is an impor...

OBJECTIVE To establish the prevalence of Helicobacter pylori colonization of dental plaque and its correlation with Helicobacter pylori infection of the antral mucosa in patients with symptomatic dyspepsia. METHODS Seventy eight adult dyspeptic patients undergoing upper gastrointestinal tract endoscopy were prospectively enrolled. Four air dried dental plaque cytology slides and four gastric ...

abstract background and aim: toothbrushes cannot reach all interdental areas. interdental cleaning is an important part of oral hygiene care. the purpose of this study was to compare the supragingival plaque removal efficacy of an interdental cleaning power device (aquajet) and dental floss. materials and methods: thirty subjects were enrolled in this single-blind, split mouth clinical trial. a...

AIM Cheeses have been investigated for their potential cariogenicity in several studies and have been shown to produce little change in the resting pH in dental plaque and little or no demineralisation of enamel in most intra-oral cariogenicity studies. The aim of the present study was to investigate the cariogenicity of four processed cheese formulations. METHODS Enamel demineralisation was ...