Clinical effect of modified fixed protraction treatment in children with crossbite

Abstract

To compare the effect of modified fixed protraction for patients with crossbite. 20 patients with crossbite are included in this clinical study and are randomly allocated to following two groups: Patients with the modified fixed protraction are considered as experiment group and patients with conventional fixed protraction are considered as control group, and the clinical material from two groups patients with crossbite are collected, and lateral cephalogram, treatment time, protraction dislodging or loss times in two group are measured and analyzed. Our outcomes show that patients by the modified fixed protraction show less protraction dislodging or loss times and less treatment time than those by conventional fixed protraction, post-treatment lateral cephalogram by modified fixed protraction and the conventional fixed protraction is significantly better than those in pre-treatment. It can conclude that the modified fixed protraction can effectively correct the crossbite, and the modified fixed protraction is promising tool to treat the patients with crossbite.