Torus Mandibularis removal surgery

Senior needs removal of mandibular tori (bony growths in the mouth). Typically this is minor oral surg but in her case they are somewhat extreme which will have to be done under anesthesia. She has Humana Medicare supplement coverage with dental but it isn't covered. Estimates are $7k for the surgery plus a large amount to replace damaged teeth. Speaking with my dental insurance rep I'm told this could be covered by Medicare? This may be a moot point as there are virtually no oral surgeons in SW Florida that accept Medicare. Thoughts?