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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 ...
Upper and Lower Jaw Functional Expanders. This is a comprehensive list of functional appliances that are used in the field of orthodontics.The functional appliances can be divided into fixed and removable.
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.
Chishti conceived of the basic design of InvisAlign while an adult orthodontics patient. During his treatment with a retainer intended to complete his treatment, he posited that a series of such devices could effect a large final placement in a series of small movements. [9] [10] [23] Sales began in the U.S. in 1999. [4] [11]
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.
Template: Canada image map. 26 languages. ... Clickable map of Canada exhibiting its ten provinces and three territories, and their capitals.
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
Operated in Canada as CASO. Midland Railway of Canada: Acquired by GTR. Midland Railway (Canada) Hants County NS: 1901-1905: Acquired by DAR. Midland Railway of Manitoba: Subsidiary of GN. Millertown Railway [5] [6] Subsidiary of AND. Abandoned. Montreal and Champlain Railroad: 1857–1872: Acquired by GTR. Montreal and Ottawa Railway: Acquired ...