[上颌第二磨牙远中移动：生物力学]
[Distalization of the upper second molar: biomechanics].
作者信息
Castaldo A
机构信息
Department of Orthodontics, Boston University.
出版信息
Mondo Ortod. 1991 Sep-Oct;16(5):611-5.
PMID:1784296
Abstract
The Author shows a system to dystalize the second upper molars and, if necessary, the third upper molars. This system, easy to be adapted, is made up by a palatal bar inserted between the first upper molars, by a sectional and a 100 grams precalibrated open Sentalloy coil spring used as an active force.
摘要
作者展示了一种用于使上颌第二磨牙（如有必要，还包括上颌第三磨牙）远中移动的系统。该系统易于适配，由一根插入上颌第一磨牙之间的腭杆、一段分段的以及一个预校准为100克的开口Sentalloy螺旋弹簧作为作用力组成。
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