Fluoride

In a earth water is important resource for sustaining ecosystems, which provide life-supporting services for people, animals, and plants 1.Contaminated water is a major cause of illness and death, water quality is a determining factor in human poverty, education, and economic opportunities. Water quality is going to declining, threatening the health of ecosystems and humans worldwide 2. Various factors influence this impairment, including rapid urbanization ,land use ,chemicals of industrial…

INDEPENDENT PAPER. CALCIUM: A REACTIVE AND STRENGTH ELEMENT. Mariana Escobar Introduction to chemistry I- with Lab CHE 101-360 Dr. Rebbeca Hoenigman April 19th 2018 Calcium, Ca. Molar Mass 40.08 Chemical reaction: calcium with air: 2Ca(s) + O2(g) → 2CaO(s) Chemical reaction: calcium with water: Ca(s) + 2H2O(g) → Ca(OH)2(aq) + H2(g) Calcium is a familiar element for most of the people at the moment of looking to a periodic table, including oxygen and hydrogen. Because…

combination drugs is GI mucosal cell damage, which results in open, painful sores anywhere along the alimentary tract. Oral sores in the mouth or pharynx, along the esophagus can also happen in the rectal area. These lesions greatly compound anorexia because eating is very uncomfortable. Some medicines used to treat childhood cancer can have the neurotoxic effects of the extreme inability to have a bowel movement and jaw pain. Administration of opioid pain-relieving drugs can increase the…

Introduction Desulphurization of steel at ladle treatment of metal is one of the important technological operations. The successful course of the desulfurization process is provided by fire refining slag with specific chemical composition, usually based on calcium oxide. The duration of mixing of the metal with the slag in inert gas, the early formation of refining slag, then optimization of the metal oxidation providing the formation of iron oxide FeO in the slag to be less than 0.5 % able…

Acid, below-normal pH, causes many problems in our world today—from drinks to teeth, from pollution of industry to natural disasters. Acid is a chemical substance that can subdue alkalis, can dissolve specific metals and can turn them into salt, such as calcium, turns red on blue litmus paper, is corrosive or sour-tasting when it comes to liquid, generates pain in wounds, and turns colorless when placed in phenolphthalein which is used as a basic to acid indicator ("Definition of acid in…

Is Perrier Bad for You? Perrier is carbonated bottled mineral water sourced from the Les Bouillens spring in Southern France. Although the water from the spring is already naturally carbonized, carbonic gas is added to it again as it is bottled. Because of the many health benefits this water promises, it became very popular among Americans who wanted to lead a healthy and active lifestyle. Perrier soon became a widely-used substitute for soft drinks or cocktails and has gained a reputation for…

A Look Into Expanded Function Dental Assistants The providers of oral health care encompass a larger scope than just the dentist and his or her assistants and hygienists. Multiple disciplines exist within the field to help the efficiency of the dental practice and to provide the underserved population in the absence of an adequate dentist to population ratio. An expanded function dental assistant (EFDA) is one discipline that has come about to provide dental care in a more efficient way. An…

Did you know that maintaining dental hygiene can avoid bad breath, to also avoid pain, and to keep a person's teeth looking good? The career of a dental hygienist is a great career, because it teaches how to care for oral health and it has a big impact on people because it helps keeping a clean and healthy mouth.One might decide to become a dental hygienist when going to a dental office about their teeth needing to be clean the dentist could show things they have to do everyday in the workplace.…

Isabel Johnson’s article “Bottled Water, Go Away” brings up a different perspective to an ongoing debate over the impacts of plastic water bottles on the world. She presents both the pros and cons of bottled water. Her reasons, however, do not provide a strong argument since she does not clearly support a single claim. Nonetheless, the reasoning behind her logic is supported using information obtained from research. Her credibility is built, but at the same time lost, from using these resources…

differentiates these materials from conventional adhesives. Transbond plus colour change adhesive, introduced by 3M Unitek16, appears pink in colour initially and colour fades away after light curing. It also has additional properties of moisture tolerance, fluoride release and it can be used with metal and ceramic brackets (3M) 16. Grengloo is a two way colour change adhesive introduced by Ormco Corporation. As it is warmed to body temperature, the colour disappears, remaining clean throughout…