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This retainer is intended to be adjustable similarly to the traditional Hawley retainer, which is not practical with vacuum-formed retainers. Research shows that Hawley retainers are not effective for preventing incisor irregularity relapse. [4] Hawley retainers also affect speech, especially the d, s, t, and i sounds, however as they are often ...
Charles Augustus Hawley (March 13, 1861 – July 22, 1929) was an American orthodontist who is known for developing the Hawley retainer which is used in the field of Orthodontics. He attended Angle School of Orthodontia and graduated from there in 1905.
Viggo Andersen first used this appliance on his daughter's mandibular teeth in the summer of 1908. He took the mechanical braces off from his daughter, and he had her wear the "Biofunctional Retainer" throughout the summer in the mandibular arch. The maxillary arch received Hawley retainer. After a while, Viggo realized that her daughter's ...
Retainer agreement, a contract in which an employer pays in advance for work, to be secured or specified later, when required; Domestic worker or servant, especially one who has been with one family for a long time (chiefly British English) Affinity (medieval), also Retinue, a person or group gathered around in the service of a lord
English: Blank SVG map of the territory claimed by Canada Non-contiguous parts of a states/provinces are "grouped" together with the main area of the state/provinces, so any state/provinces can be coloured in completion with one click anywhere on the state/provinces's area.
Loyalist is a lower-tier township municipality in central eastern Ontario, Canada on Lake Ontario. It is in Lennox and Addington County and consists of two parts: the mainland and Amherst Island. It was named for the United Empire Loyalists, who settled in the area after the American Revolution.
As of the 2001 census, Nanticoke was home to 23,588 individuals over an area of 674.72 square kilometres for a population density of 35 people per square kilometre. The median age of the population was 39.9, 39.5 for Men and 40.3 for Women living in 9,748 private dwellings. The median household income in 2000 was $58,102. [2]
This is a list of operational hydroelectric power stations in Canada with a current nameplate capacity of at least 100 MW. The Sir Adam Beck I Hydroelectric Generating Station in Ontario was the first hydroelectric power station in Canada to have a capacity of at least 100 MW upon completion in 1922.
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