نتایج جستجو برای: erosion control

تعداد نتایج: 1356155  

Journal: :Archives of oral biology 2010
Annette Wiegand Barbara Hiestand Beatrice Sener Ana Carolina Magalhães Malgorzata Roos Thomas Attin

OBJECTIVE This in situ study aimed to analyse the impact of different tetrafluorides (TiF(4), ZrF(4) and HfF(4)) and AmF on erosion and erosion plus abrasion of enamel and dentin. DESIGN Ten volunteers took part in this crossover and double-blind study performed in 8 phases of each 3 days. In each phase, 2 bovine enamel and 2 dentin specimens were fixed in intraoral appliances. One enamel and...

2013
ALINA M. PICOS SIMINA POENAR ALEXANDRA OPRIS ALEXANDRA CHIRA MARIUS BUD ANTONELA BERAR ANDREI PICOS DAN L. DUMITRASCU

BACKGROUND Dental erosions are determined by a mechanism involving increased oral acidity. Gastro-esophageal reflux disease (GERD) represents the pathological reflux of gastric content into the oral cavity, affecting the hard dental tissues integrity, with a major risk of advanced tooth wear. AIM This study aims to investigate the prevalence of dental erosions in GERD patients, in order to ob...

Journal: :Journal of Korean Medical Science 2001
C. K. Lee J. S. Hong Y. S. Cho B. Yoo G. S. Kim H. B. Moon

We performed this study to investigate the possible association between vitamin D receptor (VDR) gene polymorphism and the focal bone erosion in rheumatoid arthritis (RA) patients in Korea. One hundred and fifty-seven RA patients were enrolled and two control groups were selected. The focal bone erosion score was assessed by modified Sharp's method. Genotyping of VDR polymorphisms was performed...

Journal: :Journal of the Northeastern Agricultural Economics Council 1983

Journal: :Journal American Society of Mining and Reclamation 1991

Journal: :Eos, Transactions American Geophysical Union 2011

Journal: :Journal of oral science 2010
Jonas G Souza Isabela D Rochel Agnes F F Pereira Thiago C Silva Daniela Rios Maria Aparecida A M Machado Marília A R Buzalaf Ana Carolina Magalhães

This in vitro study aimed to analyze the effects of application of xylitol varnishes and solutions to protect against enamel erosion. Twelve bovine enamel specimens were pre-treated with 5% NaF-Duraphat varnish, 10% xylitol varnish, 20% xylitol varnish, placebo varnish, 5% NaF solution, 10% xylitol solution or 20% xylitol solution. The varnishes and solutions were applied for 6 h and 1 min, res...

2003
Robert T. Burns L. M. Risse L. B. Faucette

The objective of this series of studies was to investigate the use of compost and mulch materials in erosion control and stabilization projects. The first phase of the study primarily looked at the impacts of surface blankets of twelve different compost and mulch materials on total solids (TS) loss and water quality and found that mulch blankets produced runoff with the lowest TS and nutrient c...

Journal: :Journal of the Japanese Society of Revegetation Technology 1996

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