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  • Title: Orthodontics. Part 5: Appliance choices.
    Author: Roberts-Harry D, Sandy J.
    Journal: Br Dent J; 2004 Jan 10; 196(1):9-18. PubMed ID: 14966494.
    Abstract:
    There are bewildering array of different orthodontic appliances. However, they fall into four main categories of removable, fixed, functional and extra-oral devices. The appliance has to be selected with care and used correctly as inappropriate use can make the malocclusion worse. Removable appliances are only capable of very simple movements whereas fixed appliances are sophisticated devices, which can precisely position the teeth. Functional appliances are useful in difficult cases and are primarily used for Class II Division I malocciusions. Extra-oral devices are used to re-enforce anchorage and can be an aid in both opening and closing spaces.
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