Author/Authors :
Magnifico, Marisabel Department of Medicine and Surgery - Section of Orthodontics - University Dental Center - University of Parma, Parma, Italy , Di Blasio, Alberto Department of Medicine and Surgery - Section of Orthodontics - University Dental Center - University of Parma, Parma, Italy , Cassi, Diana Department of Medicine and Surgery - Section of Orthodontics - University Dental Center - University of Parma, Parma, Italy , Di Blasio, Chiara Section of Maxillofacial Surgery - University Hospital of Parma, Parma, Italy , Gandolfini, Mauro Department of Medicine and Surgery - Section of Orthodontics - University Dental Center - University of Parma, Parma, Italy
Abstract :
Unilateral posterior crossbite often involves only one tooth, especially upper first molar; in these cases it is never easy to obtain an
asymmetrical movement of a molar and a proper planning of the orthodontic device with its anchorage is necessary to avoid arch
overexpansion. Thanks to its simplicity and efficacy, the modified Quad Helix here described represents a valid therapeutic tool in
cases of isolated posterior crossbite.
