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A cantilever is, in principle, any piece of wire, whose end is inserted, on one side, into a bracket or a tube, or included in the acrylic of a removable appliance, while the other one is tied to another unit, with only a one-point contact. When using the cantilever, the orthodontist can easily estimate the force system on both units, just measuring the length of the appliance and its force by means of a dynamometer -in the direction of its activation- and thereby predict the clinical result == Example of cantilever application in orthodontics == The cantilever may have many different configurations and uses in orthodontic therapy. The cantilevers may be utilized in all the planes of space. They can be applied both buccally and lingually. Instead of a complete list, some examples are shown: # Control of the labiolingual position of the incisors and canines and the buccolingual position of the molars and premolars. # Control of rotation of teeth with buccal cantilevers or palatal and lingual arches, used in a statically determinate way # Vertical control, through extrusion or intrusion of lateral and anterior teeth. # Generation of a third order control (torque) to the anterior as well of the buccal segment. # Generation of (molar ) or canine uprighting. Within the individual segments, a large number of different applications is possible too. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Cantilever mechanics (orthodontics)」の詳細全文を読む スポンサード リンク
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