Three-dimensional soft tissue comparison in non-growing patients treated for skeletal Class II Division I malocclusion: mandibular advancement surgery vs. Herbst Appliance

In patients treated with OS, skeletal advancement resulted in greater increases in mandibular and corpus lengths, along with forward positioning of the pogonion. Based on 3D soft tissue and cephalometric comparisons, the Herbst appliance seems to be a viable non-surgical alternative for young adults with moderate Class II malocclusion. Both treatment modalities also contributed to significant improvements in sagittal oropharyngeal airway length.