نتایج جستجو برای: removal of fluoride
تعداد نتایج: 21173640 فیلتر نتایج به سال:
statement of problem: since the fluoride releases from materials with the property of releasing fluoride are decreasing gradually, it seems that probably the material rechargeability is more important than their long-term fluoride release. purpose: the objective of this study was to asses the fluoride release and rechargeability of 2 types of fluoride releasing restorative materials, a resin mo...
abnormal fluoride levels in drinking water have been associated with adverse health effects. to determine the fluoride content of well waters in enugu, southeastern nigeria, water samples from 50 artisan wells chosen by multistage sampling procedure from the 5 zones of enugu municipality were analyzed in duplicates for their fluoride content. the zonal mean values were 0.60, 0.70, 0.62, 0.62, a...
Objective: Using fluoridated toothpaste is one of the effective preventive methods of dental caries. The aim of this study was to evaluate the total and soluble fluoride concentration in different toothpastes available in the Iranian market. Methods & Materials: In this study, total and soluble fluoride concentration of eight brands of Iranian and five brands of non-Iranian toothpastes wer...
background and purpose: fluoride is one of the drinking water contaminants regulated by epa. this ion, in low doses in the mouth reduces tooth decay without health risk and at much higher doses causes health complications and can be toxic. the major sources of exposure to fluoride are drinking water, food, dental products, and pesticides. the biggest contributor to exposure for most people in i...
background and aims. streptococcus mutans is the main pathogenic agent involved in dental caries, and may be eliminated using mouthwashes. the objective of this study was to compare the effects of fluoride, chlorhexidine, and fluoride-chlorhexidine mouthwashes on salivary s. mutans count after two weeks of use and determine the prevalence of their side effects on the oral mucosa. materials and ...
Dental fluorosis is characterized by subsurface hypomineralization and increased porosity of enamel, associated with a delay in the removal of enamel matrix proteins. To investigate the effects of fluoride on ameloblasts, A/J mice were given 50 ppm sodium fluoride in drinking water for four weeks, resulting serum fluoride levels of 4.5 µM, a four-fold increase over control mice with no fluoride...
objectives: this study aimed to assess the self-reported knowledge and attitude of dentists towards fluoride prescription. materials and methods: a questionnaire survey was conducted at the national annual dental congress in 2010 in tehran-iran. dentists’ level of knowledge about the preventive effects of systemic and topical administration of fluoride was assessed as well as their attitudes to...
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