نتایج جستجو برای: dental plaque ph
تعداد نتایج: 342801 فیلتر نتایج به سال:
The purpose of this study was to determine if intraoral scanners (IOS) are useful for dental hygiene instruction. plaque eight volunteers with healthy dentition stained a plaque-disclosing solution, and the O’Leary Plaque Control Record (PCR) measured by direct observation evaluating IOS images. PCR values were higher images than observation. difference greatest lingual surface mandibular anter...
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...
To examine possible sources of Campylobacter pylori and to determine the routes by which it is transmitted to the human stomach, samples of dental plaque and saliva from 71 patients undergoing endoscopy in addition to stomach biopsies were collected and cultured on selective noninhibitory Skirrow medium. A total of 29 (40.8%) of the stomach biopsies yielded C. pylori. None of the saliva samples...
Effects of tongue cleaning on bacterial flora in tongue coating and dental plaque: a crossover study
BACKGROUND The effects of tongue cleaning on reconstruction of bacterial flora in dental plaque and tongue coating itself are obscure. We assessed changes in the amounts of total bacteria as well as Fusobacterium nucleatum in tongue coating and dental plaque specimens obtained with and without tongue cleaning. METHODS We conducted a randomized examiner-blind crossover study using 30 volunteer...
Fructan-hydrolyzing enzyme from Streptococcus salivarius KTA-19 isolated from human dental plaque was investigated. The enzyme was purified by ammonium sulfate precipitation, acetone fractionation, and column chromatography on Bio-Gel and DEAE-cellulose. The purified enzyme showed a single band on sodium dodecyl sulfate-polyacrylamide gel electrophoresis and isoelectric focusing. Its molecular ...
The importance of Streptococcus mutans in the etiology and pathogenesis of dental caries is certainly controversial, in part because excessive attention is paid to the numbers of S. mutans and acid production while the matrix within dental plaque has been neglected. S. mutans does not always dominate within plaque; many organisms are equally acidogenic and aciduric. It is also recognized that g...
OBJECTIVE The purpose of this study is to assess the impact of knowledge acquired in preventive aspects of dental education on dental students' own health attitudes, oral hygiene and gingival status in the United Arab Emirates. METHODS To compare the self-reported oral health behavior of first year dental students in the University of Sharjah with their actual oral hygiene and gingival condit...
The effects of transport media, temperature, and anaerobiosis on the survival of bacteria from human supragingival dental plaque were studied. Individual samples were obtained by passing sterile, unwaxed dental floss through the interproximal spaces. The plaque-bearing portion of floss was immediately placed in vials containing reduced transport fluid, viability-preserving microbistatic medium,...
herbal extracts have been successfully used in dentistry as tooth cleaning and antimicrobial plaque agents. the aim of this study was to evaluate the clinical effects of a dental gel containing barberry extracts (from berberis vulgaris) on gingivitis and microbial plaque control. a double blind clinical trial study was conducted in a dormitory on 45 boys aged 11-12 years having the same socioec...
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