The aim of this prospective study was to radiographically assess root morphology changes in maxillary and mandibular premolars following Herbst appliance treatment.
The aim of this retrospective clinical study was to evaluate dental arch, skeletal, dentoalveolar, and soft tissue profile changes following treatment of Class III malocclusion by means of the Function Regulator (FR-3) appliance.
A pilot study was designed in which 19 growing patients with Class II, Division 1 malocclusions who were undergoing differential torque treatment were cephalometrically evaluated. No extraoral force or Class II elastics were used. Findings indicate that the 2 x 4 appliance can be useful in the treatment of selected Class II, Division 1 malocclusions in growing children.