Cervical headgear and function regulator effects in Class II,division 1 patients

This study investigated 40 growing patients with Angle‐Class II, division 1, treated with either a functional regulator (FR) or cervical headgear (HG) over a period of approximately 1 year. The objective was to evaluate dentoalveolar and skeletal reactions.
Both appliances significantly (p<0.001) improved distocclusion and reduced the overjet. Cephalometric analyses revealed that the effects of these two appliances on the skeleton differed. Also, in the FR group, the inclination of incisors was (p<0.05) altered as well as the maxillary plane angle and the Wits‐appraisal (p<0.05). The HG group showed a significant (p<0.001) reduction in both SNA and ANB angles. Both appliances appear to be sufficient for improvement in patients with Class II, division 1 occlusion, with the HG showing an additional skeletal effect in the maxilla.