[Procedure to follow after postero-anterior traction with Delaire's orthopedic mask in the treatment of class III lesions]. / Conduite à tenir après les tractions postéro-antérieures sur masque orthopédique de Delaire dans les traitements des classes III.

The "Fonctionnal Lingual Elevator" changes the lingual situation and dynamic. The tongue becomes in a higher and forwards situation. This new situation generates biomécanics modifications of the labio-lingual and lingual pharyngal complex which induce secondary structural modifications.