Xi Zhang

A comparative study of mandibular changes induced by rapid maxillary expansion vs sagittal-guided Twin-block therapy during the mixed dentition period.

INTRODUCTION It is generally accepted that the optimal timing for functional orthodontic treatment in patients with Class II malocclusion and mandibular retrusion is during the circumpubertal growth period (cervical vertebral maturation stage [CS] 3-CS4). However, these patients often present with excessive overjet and...