Hi I also am in despair about black gaps "triangles" between teeth. I have advanced gum disease and black gaps are becoming very pronounced between all teeth, had a bit :confused: of cosmetic bonding to partially cover up one hole but since deep cleaning/ scaling, lots of black gaps are much bigger and don't know what can be done because presumably it is more important to keep gums clean and so they don't want to do anything cosmetically to these areas. Everywhere I look, people have got perfect teeth and i have these black nasty holes. Well, I don't know the answer-sorry-anyone else know?!!......:confused: