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Practical Suggestions

The quadhelix. Basic biomechanics

2002, Volumen 32, Número 3
Alberto Cervera Sabater, Mónica Simón Pardell
Ortodoncista. Práctica privada. Madrid
 

The use of an orthodontic appliance implicates to completely understand all his fisical, mechanical and clinical characteristics in order to obtain and control all the effects that it could produce. The purpose of this article is to englobe constrution and activation aspects of the QH appliance that allow to achieve the required movements for molars and premolars transversal correction.  (Rev Esp Ortod. 2002;32(3):253-262)

 
 
Key words:
Quadhelix. Expansion. Rotation. Biomechanics.
 
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