It is widely accepted that the region behind the tongue is a major site of collapse during obstructive sleep apnea. In fact, there are many surgical procedures performed currently to address tongue base collapse. These include: RF ablation (Somnoplasty) of the tongue base; genioglossus advancement; Medtronic's Repose system for tongue base suspension; hyoid suspension; and maxillomandibular advancement (MMA). The change in airway dimension after MMA surgery on the lateral cephalograph is presented in Figure 1.