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Clear aligners are orthodontic devices that are a transparent, plastic form of dental braces used to adjust teeth. [1] Clear aligners have undergone changes, making assessment of effectiveness difficult. [2] A 2014 systematic review concluded that published studies were of insufficient quality to determine effectiveness. [3]
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Top (left) and bottom (right) retainers Vacuum form retainer in the foreground (used on upper); illustration of an early Hawley retainer in the background. Orthodontic retainers are custom-made devices, usually made of wires or clear plastic, that hold teeth in position after surgery or any method of realigning teeth.
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Dental braces, with a transparent power chain, removed after completion of treatment. Modern orthodontics makes frequent use of nickel-titanium archwires and temperature-sensitive materials. When cold, the archwire is limp and flexible, easily threaded between brackets of any configuration.
Usually changed at each adjustment, these come in many varied colours, including transparent. A series of ligatures connected to each other and used to pull teeth together with more strength is called a power chain. Ligatures can also be made of wire. Self-ligation makes use of a bracket with a sliding or rotating mechanism to ligate an archwire.
The first patient to be treated by lingual braces was by Kurz in Beverly Hills in 1976. She was a member of Playboy Bunny Club and after being presented with metal braces option, she wanted to get braces which did not show metal. [4] It was from her demand that Craven developed the lingual braces.
The following other wikis use this file: Usage on ab.wikipedia.org Акатегориа:Ашаблонқәа рформатркра; Акатегориа:Ашаблонқәа:Азхьарԥшқәа