As you can see in the radiograph, I had to place this implant very deep because of lack of palatal bone. The buccal bone is 4mm higher than the palatal. I am concerned about long term prognosis for this implant. I am also concerned about the biological width and if this will threaten bone loss on the adjacent teeth. Aesthetics are actually okay. No other significant signs or symptoms. What do you recommend that I do at this point? Should I attempt GBR to augment the vertical height? Any other thoughts?