The cheapest way to whiten teeth is by brushing with baking soda and peroxide paste. Read all instructions on whiteners! AnswerParty!
Major League Baseball
Major League Baseball (MLB) is a North American professional baseball league consisting of teams that play in the American League and National League. The two leagues, dating to 1901 and 1876 respectively as separate legal entities, merged in 2000 into a single organization led by the Commissioner of Baseball.
MLB constitutes one of the four major professional sports leagues of North America. It is composed of thirty teams: twenty-nine in the United States and one in Canada. Teams in MLB play 162 games each season over six months (April through September). Five teams in each league advance to a four-round postseason tournament that culminates in the World Series, a best-of-seven-games championship series between the two league champions that dates to 1903.
Sodium hydrogen carbonate
Baking soda, bicarbonate of soda, nahcolite, sodium bicarbonate, sodium hydrogencarbonate
Mark Anthony Whiten (born November 25, 1966) is a former Major League Baseball outfielder and switch-hitter batter who played for the Toronto Blue Jays (1990–91), Cleveland Indians (1991–92, 1998–2000), St. Louis Cardinals (1993–94), Boston Red Sox (1995), Philadelphia Phillies (1996), Atlanta Braves (1996), Seattle Mariners (1996) and New York Yankees (1997). He became known by the nickname "Hard-Hittin'" Mark Whiten. Whiten was born in Pensacola, Florida. He was selected by Toronto in the 1986 amateur draft and made his major league debut in the '90 season. Whiten was a typical up-and-down player. He had one of the best outfield arms in the 1990s. He hit for power too, but his mental lapses hurt him in the field and at the plate. The Blue Jays had little patience with his development and sent him to Cleveland. After two seasons with the Indians he was sent to the Cardinals.
In his first season with St. Louis Whiten recorded nine outfield assists, fifth-best in the National League. On September 7, 1993, he gained notability with his performance against the Cincinnati Reds in the second game of a doubleheader. Whiten hit four home runs and drove in 12 runs, tying the all-time single-game records in both categories in the process. He also tied the NL mark for runs batted in in a doubleheader (13). Whiten is one of only 16 players in major league baseball history who have hit four home runs in one game, and he and Jim Bottomley are the only two players with 12 RBIs in one game.
Household chemicals are non-food chemicals that are commonly found and used in and around the average household. They are a type of consumer goods, designed particularly to assist cleaning, pest control and general hygiene purposes.
Food additives generally do not fall under this category, unless they have a use other than for human consumption. Cosmetics products can partially be counted in, because even though they are not for direct application to parts of the human body, they may contain artificial additives that have nothing to do with their dedicated purpose (e.g. preservatives and fragrances in hair spray). Additives in general (e.g. stabilizers and coloring found in washing powder and dishwasher detergents) make the classification of household chemicals more complex, especially in terms of health - some of these chemicals are irritants or potent allergens - and ecological effects.
Health Medical Pharma
Dental bleaching, also known as tooth whitening, is a common procedure in general dentistry. According to the FDA, whitening restores natural tooth color and bleaching whitens beyond the natural color. There are many methods available, such as brushing, bleaching strips, bleaching pen, bleaching gel, and laser bleaching. Teeth whitening has become the most requested procedure in cosmetic dentistry today. More than 100 million Americans whiten their teeth one way or another; spending an estimated $15 billion in 2010.
Bleaching methods use carbamide peroxide which reacts with water to form hydrogen peroxide. Carbamide peroxide has about a third of the strength of hydrogen peroxide. This means that a 15% solution of carbamide peroxide is the rough equivalent of a 5% solution of hydrogen peroxide. The peroxide oxidizing agent penetrates the porosities in the rod-like crystal structure of enamel and breaks down stain deposits in the dentin. Power bleaching uses light to accelerate the process of bleaching in a dental office. Another bleaching agent is 6-phthalimido peroxy hexanoic acid (PAP).
Health Medical Pharma
Science of drugs including their origin, composition, pharmacokinetics,
pharmacodynamics, therapeutic use, and toxicology.
Pharmacology (from Greek φάρμακον, pharmakon, "poison" in classic Greek; "drug" in modern Greek; and -λογία, -logia "study of", "knowledge of") is the branch of medicine and biology concerned with the study of drug action, where a drug can be broadly defined as any man-made, natural, or endogenous (within the body) molecule which exerts a biochemical and/or physiological effect on the cell, tissue, organ, or organism. More specifically, it is the study of the interactions that occur between a living organism and chemicals that affect normal or abnormal biochemical function. If substances have medicinal properties, they are considered pharmaceuticals.