Top-flight periodontists and oral surgeons truly work miracles. The skillset involved in growing 8 milimeters of vertical bone in the posterior mandible, or performing a seamlessly beautiful connective tissue graft from #4-10 is nothing short of amazing.
Thank God that those colleagues are around when they’re needed, but that type of skill is simply not needed for the average case or the average patient, even in a high end office. Learn to diagnose what’s a graft you can handle, with instruments and clinical skills you already have, and learn which ones to cheerfully refer.