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A man brushing his teeth while looking in a mirror. Tooth brushing is the act of scrubbing teeth with a toothbrush equipped with toothpaste.Interdental cleaning (with floss or an interdental brush) can be useful with tooth brushing, and together these two activities are the primary means of cleaning teeth, one of the main aspects of oral hygiene. [1]
The first nylon bristle toothbrush made with nylon yarn went on sale on February 24, 1938. The first electric toothbrush, the Broxodent, was invented in Switzerland in 1954. [26] By the turn of the 21st century nylon had come to be widely used for the bristles and the handles were usually molded from thermoplastic materials. [6]
A 1930s poster from the Work Projects Administration promoting oral hygiene. Tooth decay is the most common global disease. [14] Over 80% of cavities occur inside fissures in teeth where brushing cannot reach food left trapped after eating and saliva and fluoride have no access to neutralize acid and remineralize demineralized teeth, unlike easy-to-clean parts of the tooth, where fewer ...
In the 20th century, new dental techniques and technology were invented such as the porcelain crowns (1903), Novocain (a local anesthetic) 1905, precision cast fillings (1907), nylon toothbrushes (1938), water fluoridation (1945), fluoride toothpaste (1950), air driven dental tools (1957), lasers (1960), electric toothbrushes (1960), and home ...
The state legislature of California twice passed SB 840, The Health Care for All Californians Act, a single-payer health care system. Both times, Governor Arnold Schwarzenegger (R) vetoed the bill, once in 2006 and again in 2008. [165] [166] [167] The percentage of residents that are uninsured varies from state to state.
Later dentures from the 1850s on were made of Vulcanite, a form of hardened rubber into which porcelain teeth were set. In the 20th century, acrylic resin and other plastics were used. [33] In Britain, sequential Adult Dental Health Surveys revealed that in 1968 79% of those aged 65–74 had no natural teeth; by 1998, this proportion had fallen ...
1983 – Reach toothbrush was featured in Tooth Protectors video game for the Atari 2600 video game console along with Johnson & Johnson dental floss and Act mouthwash. [9] 1985 – Reach toothbrush gained recognition from American Dental Association. [10] 1986 – Mr. Reach character with the famous flip-top head, was born in Australia. [11]
William Addis (1734–1808) was an English entrepreneur believed to have produced the first mass-produced toothbrush in 1780. [1] [2] Addis was born in 1734 in England, most likely in Clerkenwell, [note 1] London. [3] In 1770, Addis was imprisoned in Newgate prison for causing a riot in Spitalfields. [4]