My father and older sister both have severly recessive gums (without gingivitis, etc). My father lost virtually all his teeth due to this and my sister (who is mid-60s) is having another gum grafting surgery soon. Her gum sugeries began when she was in her early twenties. My sister doesn't have many EDS signs, but I'm sure I inherited through my father and believe this is a connective tissue problem. Any thoughts?