Sharp Edged Bone Graft Cutting Into Gums

[Jedo]

A few weeks ago I got a molar extracted and a bone graft placed. A couple days after I noticed that I could feel the bone graft pushing into my outer gums. The surgeon checked it 2 weeks later during follow up but said everything was fine. I saw my general dentist a few days later for another tooth and he checked the area and immediately noticed the problem. By this time the bone graft had cut through my gums and was exposed.

Is this something that happens often?
Is it a sign of shotty work or is there something I may have done to cause it?
Is it normal for bone grafts to have such a sharp edge?

 

[nikassam]

These are common complication . Few people do face them , most of people dont