How do I Know if I'm Getting Enough Fluoride? If your drinking water is fluoridated, then brushing regularly with a fluoride toothpaste is considered sufficient for adults and children with healthy teeth at low risk of decay. If your community's water is not fluoridated and does not have eno...
Fluoride is the negative ion of the elementfluorine. The symbol for the element fluorine is F. Fluoride often is written as F-, which stands for the anion of fluorine that has a -1 electrical charge. Any compound, whether it is organic or inorganic, that contains the fluoride ion is also...
What is the evidence that fluoride works to prevent dental cariesHoward F. PollickOMICS International
It is certainly important for infants and children between the ages of 6 months and 16 years to be exposed to fluoride. This is the timeframe during which the primary and permanent teeth come in. However, adults benefit from fluoride, too. New research indicates that topical fluoride -- from...
根据第三段最后一句“The fluoride mixes with enamel (釉质),the hard surface on teeth,to help prevent holes from forming.〞可知答案是C。答案: C相关推荐 1According to the passage,what is the function of fluoride? A. Makingthe surfaceon teeth much cleaner. B. Protecting gums from being ...
NaF is mostly derived from fluorosilicic acid, which uses phosphorite rock as a source. When the fluorosilicic acid is mixed with caustic soda, sodium fluoride is produced. Sometimes NaF is produced from mixing caustic soda withhydrogenfluoride. ...
Fluoride varnish is considered safe to use because the application and drying processes prevent most of the fluoride from being ingested. Additionally, while the varnish uses a high concentration of fluoride, the amount applied to the teeth is minimal. Many dentists suggest brushing with fluoridated ...
What is fluoride? Should fluoride be avoided? Why is some toothpaste made without fluoride? What are the benefits of fluoride free toothpaste? Is fluoride free toothpaste as effective? When should I use fluoride free toothpaste? What Is Fluoride? Fluoride is a mineral found naturally in water, ...
The use of fluoride (氟化物) to protect teeth is common in many parts of the world. For example, it is often added to drinking water supplies. The fluoride mixes with the hard surface of teeth to help prevent holes from forming. But young children often eat some toothpaste (牙膏) when ...
Let’s consider hydrogen fluoride as an example. The electronegativity of fluorine is greater than hydrogen, and as a result, fluorine pulls all the electrons towards itself and becomes the negative pole. Hydrogen, in turn, has an excess of protons and becomes the positive pole. Such molecules...